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45244b87 ED |
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 | ||
10122051 JN |
31 | struct ddi_buf_trans { |
32 | u32 trans1; /* balance leg enable, de-emph level */ | |
33 | u32 trans2; /* vref sel, vswing */ | |
f8896f5d | 34 | u8 i_boost; /* SKL: I_boost; valid: 0x0, 0x1, 0x3, 0x7 */ |
10122051 JN |
35 | }; |
36 | ||
45244b87 ED |
37 | /* HDMI/DVI modes ignore everything but the last 2 items. So we share |
38 | * them for both DP and FDI transports, allowing those ports to | |
39 | * automatically adapt to HDMI connections as well | |
40 | */ | |
10122051 | 41 | static const struct ddi_buf_trans hsw_ddi_translations_dp[] = { |
f8896f5d DW |
42 | { 0x00FFFFFF, 0x0006000E, 0x0 }, |
43 | { 0x00D75FFF, 0x0005000A, 0x0 }, | |
44 | { 0x00C30FFF, 0x00040006, 0x0 }, | |
45 | { 0x80AAAFFF, 0x000B0000, 0x0 }, | |
46 | { 0x00FFFFFF, 0x0005000A, 0x0 }, | |
47 | { 0x00D75FFF, 0x000C0004, 0x0 }, | |
48 | { 0x80C30FFF, 0x000B0000, 0x0 }, | |
49 | { 0x00FFFFFF, 0x00040006, 0x0 }, | |
50 | { 0x80D75FFF, 0x000B0000, 0x0 }, | |
45244b87 ED |
51 | }; |
52 | ||
10122051 | 53 | static const struct ddi_buf_trans hsw_ddi_translations_fdi[] = { |
f8896f5d DW |
54 | { 0x00FFFFFF, 0x0007000E, 0x0 }, |
55 | { 0x00D75FFF, 0x000F000A, 0x0 }, | |
56 | { 0x00C30FFF, 0x00060006, 0x0 }, | |
57 | { 0x00AAAFFF, 0x001E0000, 0x0 }, | |
58 | { 0x00FFFFFF, 0x000F000A, 0x0 }, | |
59 | { 0x00D75FFF, 0x00160004, 0x0 }, | |
60 | { 0x00C30FFF, 0x001E0000, 0x0 }, | |
61 | { 0x00FFFFFF, 0x00060006, 0x0 }, | |
62 | { 0x00D75FFF, 0x001E0000, 0x0 }, | |
6acab15a PZ |
63 | }; |
64 | ||
10122051 JN |
65 | static const struct ddi_buf_trans hsw_ddi_translations_hdmi[] = { |
66 | /* Idx NT mV d T mV d db */ | |
f8896f5d DW |
67 | { 0x00FFFFFF, 0x0006000E, 0x0 },/* 0: 400 400 0 */ |
68 | { 0x00E79FFF, 0x000E000C, 0x0 },/* 1: 400 500 2 */ | |
69 | { 0x00D75FFF, 0x0005000A, 0x0 },/* 2: 400 600 3.5 */ | |
70 | { 0x00FFFFFF, 0x0005000A, 0x0 },/* 3: 600 600 0 */ | |
71 | { 0x00E79FFF, 0x001D0007, 0x0 },/* 4: 600 750 2 */ | |
72 | { 0x00D75FFF, 0x000C0004, 0x0 },/* 5: 600 900 3.5 */ | |
73 | { 0x00FFFFFF, 0x00040006, 0x0 },/* 6: 800 800 0 */ | |
74 | { 0x80E79FFF, 0x00030002, 0x0 },/* 7: 800 1000 2 */ | |
75 | { 0x00FFFFFF, 0x00140005, 0x0 },/* 8: 850 850 0 */ | |
76 | { 0x00FFFFFF, 0x000C0004, 0x0 },/* 9: 900 900 0 */ | |
77 | { 0x00FFFFFF, 0x001C0003, 0x0 },/* 10: 950 950 0 */ | |
78 | { 0x80FFFFFF, 0x00030002, 0x0 },/* 11: 1000 1000 0 */ | |
45244b87 ED |
79 | }; |
80 | ||
10122051 | 81 | static const struct ddi_buf_trans bdw_ddi_translations_edp[] = { |
f8896f5d DW |
82 | { 0x00FFFFFF, 0x00000012, 0x0 }, |
83 | { 0x00EBAFFF, 0x00020011, 0x0 }, | |
84 | { 0x00C71FFF, 0x0006000F, 0x0 }, | |
85 | { 0x00AAAFFF, 0x000E000A, 0x0 }, | |
86 | { 0x00FFFFFF, 0x00020011, 0x0 }, | |
87 | { 0x00DB6FFF, 0x0005000F, 0x0 }, | |
88 | { 0x00BEEFFF, 0x000A000C, 0x0 }, | |
89 | { 0x00FFFFFF, 0x0005000F, 0x0 }, | |
90 | { 0x00DB6FFF, 0x000A000C, 0x0 }, | |
300644c7 PZ |
91 | }; |
92 | ||
10122051 | 93 | static const struct ddi_buf_trans bdw_ddi_translations_dp[] = { |
f8896f5d DW |
94 | { 0x00FFFFFF, 0x0007000E, 0x0 }, |
95 | { 0x00D75FFF, 0x000E000A, 0x0 }, | |
96 | { 0x00BEFFFF, 0x00140006, 0x0 }, | |
97 | { 0x80B2CFFF, 0x001B0002, 0x0 }, | |
98 | { 0x00FFFFFF, 0x000E000A, 0x0 }, | |
99 | { 0x00DB6FFF, 0x00160005, 0x0 }, | |
100 | { 0x80C71FFF, 0x001A0002, 0x0 }, | |
101 | { 0x00F7DFFF, 0x00180004, 0x0 }, | |
102 | { 0x80D75FFF, 0x001B0002, 0x0 }, | |
e58623cb AR |
103 | }; |
104 | ||
10122051 | 105 | static const struct ddi_buf_trans bdw_ddi_translations_fdi[] = { |
f8896f5d DW |
106 | { 0x00FFFFFF, 0x0001000E, 0x0 }, |
107 | { 0x00D75FFF, 0x0004000A, 0x0 }, | |
108 | { 0x00C30FFF, 0x00070006, 0x0 }, | |
109 | { 0x00AAAFFF, 0x000C0000, 0x0 }, | |
110 | { 0x00FFFFFF, 0x0004000A, 0x0 }, | |
111 | { 0x00D75FFF, 0x00090004, 0x0 }, | |
112 | { 0x00C30FFF, 0x000C0000, 0x0 }, | |
113 | { 0x00FFFFFF, 0x00070006, 0x0 }, | |
114 | { 0x00D75FFF, 0x000C0000, 0x0 }, | |
e58623cb AR |
115 | }; |
116 | ||
10122051 JN |
117 | static const struct ddi_buf_trans bdw_ddi_translations_hdmi[] = { |
118 | /* Idx NT mV d T mV df db */ | |
f8896f5d DW |
119 | { 0x00FFFFFF, 0x0007000E, 0x0 },/* 0: 400 400 0 */ |
120 | { 0x00D75FFF, 0x000E000A, 0x0 },/* 1: 400 600 3.5 */ | |
121 | { 0x00BEFFFF, 0x00140006, 0x0 },/* 2: 400 800 6 */ | |
122 | { 0x00FFFFFF, 0x0009000D, 0x0 },/* 3: 450 450 0 */ | |
123 | { 0x00FFFFFF, 0x000E000A, 0x0 },/* 4: 600 600 0 */ | |
124 | { 0x00D7FFFF, 0x00140006, 0x0 },/* 5: 600 800 2.5 */ | |
125 | { 0x80CB2FFF, 0x001B0002, 0x0 },/* 6: 600 1000 4.5 */ | |
126 | { 0x00FFFFFF, 0x00140006, 0x0 },/* 7: 800 800 0 */ | |
127 | { 0x80E79FFF, 0x001B0002, 0x0 },/* 8: 800 1000 2 */ | |
128 | { 0x80FFFFFF, 0x001B0002, 0x0 },/* 9: 1000 1000 0 */ | |
a26aa8ba DL |
129 | }; |
130 | ||
5f8b2531 | 131 | /* Skylake H and S */ |
7f88e3af | 132 | static const struct ddi_buf_trans skl_ddi_translations_dp[] = { |
f8896f5d DW |
133 | { 0x00002016, 0x000000A0, 0x0 }, |
134 | { 0x00005012, 0x0000009B, 0x0 }, | |
135 | { 0x00007011, 0x00000088, 0x0 }, | |
d7097cff | 136 | { 0x80009010, 0x000000C0, 0x1 }, |
f8896f5d DW |
137 | { 0x00002016, 0x0000009B, 0x0 }, |
138 | { 0x00005012, 0x00000088, 0x0 }, | |
d7097cff | 139 | { 0x80007011, 0x000000C0, 0x1 }, |
f8896f5d | 140 | { 0x00002016, 0x000000DF, 0x0 }, |
d7097cff | 141 | { 0x80005012, 0x000000C0, 0x1 }, |
7f88e3af DL |
142 | }; |
143 | ||
f8896f5d DW |
144 | /* Skylake U */ |
145 | static const struct ddi_buf_trans skl_u_ddi_translations_dp[] = { | |
5f8b2531 | 146 | { 0x0000201B, 0x000000A2, 0x0 }, |
f8896f5d | 147 | { 0x00005012, 0x00000088, 0x0 }, |
63ebce1f | 148 | { 0x80007011, 0x000000CD, 0x0 }, |
d7097cff | 149 | { 0x80009010, 0x000000C0, 0x1 }, |
5f8b2531 | 150 | { 0x0000201B, 0x0000009D, 0x0 }, |
d7097cff RV |
151 | { 0x80005012, 0x000000C0, 0x1 }, |
152 | { 0x80007011, 0x000000C0, 0x1 }, | |
f8896f5d | 153 | { 0x00002016, 0x00000088, 0x0 }, |
d7097cff | 154 | { 0x80005012, 0x000000C0, 0x1 }, |
f8896f5d DW |
155 | }; |
156 | ||
5f8b2531 RV |
157 | /* Skylake Y */ |
158 | static const struct ddi_buf_trans skl_y_ddi_translations_dp[] = { | |
f8896f5d DW |
159 | { 0x00000018, 0x000000A2, 0x0 }, |
160 | { 0x00005012, 0x00000088, 0x0 }, | |
63ebce1f | 161 | { 0x80007011, 0x000000CD, 0x0 }, |
d7097cff | 162 | { 0x80009010, 0x000000C0, 0x3 }, |
f8896f5d | 163 | { 0x00000018, 0x0000009D, 0x0 }, |
d7097cff RV |
164 | { 0x80005012, 0x000000C0, 0x3 }, |
165 | { 0x80007011, 0x000000C0, 0x3 }, | |
f8896f5d | 166 | { 0x00000018, 0x00000088, 0x0 }, |
d7097cff | 167 | { 0x80005012, 0x000000C0, 0x3 }, |
f8896f5d DW |
168 | }; |
169 | ||
170 | /* | |
5f8b2531 | 171 | * Skylake H and S |
f8896f5d DW |
172 | * eDP 1.4 low vswing translation parameters |
173 | */ | |
7ad14a29 | 174 | static const struct ddi_buf_trans skl_ddi_translations_edp[] = { |
f8896f5d DW |
175 | { 0x00000018, 0x000000A8, 0x0 }, |
176 | { 0x00004013, 0x000000A9, 0x0 }, | |
177 | { 0x00007011, 0x000000A2, 0x0 }, | |
178 | { 0x00009010, 0x0000009C, 0x0 }, | |
179 | { 0x00000018, 0x000000A9, 0x0 }, | |
180 | { 0x00006013, 0x000000A2, 0x0 }, | |
181 | { 0x00007011, 0x000000A6, 0x0 }, | |
182 | { 0x00000018, 0x000000AB, 0x0 }, | |
183 | { 0x00007013, 0x0000009F, 0x0 }, | |
184 | { 0x00000018, 0x000000DF, 0x0 }, | |
185 | }; | |
186 | ||
187 | /* | |
188 | * Skylake U | |
189 | * eDP 1.4 low vswing translation parameters | |
190 | */ | |
191 | static const struct ddi_buf_trans skl_u_ddi_translations_edp[] = { | |
192 | { 0x00000018, 0x000000A8, 0x0 }, | |
193 | { 0x00004013, 0x000000A9, 0x0 }, | |
194 | { 0x00007011, 0x000000A2, 0x0 }, | |
195 | { 0x00009010, 0x0000009C, 0x0 }, | |
196 | { 0x00000018, 0x000000A9, 0x0 }, | |
197 | { 0x00006013, 0x000000A2, 0x0 }, | |
198 | { 0x00007011, 0x000000A6, 0x0 }, | |
199 | { 0x00002016, 0x000000AB, 0x0 }, | |
200 | { 0x00005013, 0x0000009F, 0x0 }, | |
201 | { 0x00000018, 0x000000DF, 0x0 }, | |
7ad14a29 SJ |
202 | }; |
203 | ||
f8896f5d | 204 | /* |
5f8b2531 | 205 | * Skylake Y |
f8896f5d DW |
206 | * eDP 1.4 low vswing translation parameters |
207 | */ | |
5f8b2531 | 208 | static const struct ddi_buf_trans skl_y_ddi_translations_edp[] = { |
f8896f5d DW |
209 | { 0x00000018, 0x000000A8, 0x0 }, |
210 | { 0x00004013, 0x000000AB, 0x0 }, | |
211 | { 0x00007011, 0x000000A4, 0x0 }, | |
212 | { 0x00009010, 0x000000DF, 0x0 }, | |
213 | { 0x00000018, 0x000000AA, 0x0 }, | |
214 | { 0x00006013, 0x000000A4, 0x0 }, | |
215 | { 0x00007011, 0x0000009D, 0x0 }, | |
216 | { 0x00000018, 0x000000A0, 0x0 }, | |
217 | { 0x00006012, 0x000000DF, 0x0 }, | |
218 | { 0x00000018, 0x0000008A, 0x0 }, | |
219 | }; | |
7ad14a29 | 220 | |
5f8b2531 | 221 | /* Skylake U, H and S */ |
7f88e3af | 222 | static const struct ddi_buf_trans skl_ddi_translations_hdmi[] = { |
f8896f5d DW |
223 | { 0x00000018, 0x000000AC, 0x0 }, |
224 | { 0x00005012, 0x0000009D, 0x0 }, | |
225 | { 0x00007011, 0x00000088, 0x0 }, | |
226 | { 0x00000018, 0x000000A1, 0x0 }, | |
227 | { 0x00000018, 0x00000098, 0x0 }, | |
228 | { 0x00004013, 0x00000088, 0x0 }, | |
2e78416e | 229 | { 0x80006012, 0x000000CD, 0x1 }, |
f8896f5d | 230 | { 0x00000018, 0x000000DF, 0x0 }, |
2e78416e RV |
231 | { 0x80003015, 0x000000CD, 0x1 }, /* Default */ |
232 | { 0x80003015, 0x000000C0, 0x1 }, | |
233 | { 0x80000018, 0x000000C0, 0x1 }, | |
f8896f5d DW |
234 | }; |
235 | ||
5f8b2531 RV |
236 | /* Skylake Y */ |
237 | static const struct ddi_buf_trans skl_y_ddi_translations_hdmi[] = { | |
f8896f5d DW |
238 | { 0x00000018, 0x000000A1, 0x0 }, |
239 | { 0x00005012, 0x000000DF, 0x0 }, | |
2e78416e | 240 | { 0x80007011, 0x000000CB, 0x3 }, |
f8896f5d DW |
241 | { 0x00000018, 0x000000A4, 0x0 }, |
242 | { 0x00000018, 0x0000009D, 0x0 }, | |
243 | { 0x00004013, 0x00000080, 0x0 }, | |
2e78416e | 244 | { 0x80006013, 0x000000C0, 0x3 }, |
f8896f5d | 245 | { 0x00000018, 0x0000008A, 0x0 }, |
2e78416e RV |
246 | { 0x80003015, 0x000000C0, 0x3 }, /* Default */ |
247 | { 0x80003015, 0x000000C0, 0x3 }, | |
248 | { 0x80000018, 0x000000C0, 0x3 }, | |
7f88e3af DL |
249 | }; |
250 | ||
96fb9f9b VK |
251 | struct bxt_ddi_buf_trans { |
252 | u32 margin; /* swing value */ | |
253 | u32 scale; /* scale value */ | |
254 | u32 enable; /* scale enable */ | |
255 | u32 deemphasis; | |
256 | bool default_index; /* true if the entry represents default value */ | |
257 | }; | |
258 | ||
96fb9f9b VK |
259 | static const struct bxt_ddi_buf_trans bxt_ddi_translations_dp[] = { |
260 | /* Idx NT mV diff db */ | |
fe4c63c8 ID |
261 | { 52, 0x9A, 0, 128, true }, /* 0: 400 0 */ |
262 | { 78, 0x9A, 0, 85, false }, /* 1: 400 3.5 */ | |
263 | { 104, 0x9A, 0, 64, false }, /* 2: 400 6 */ | |
264 | { 154, 0x9A, 0, 43, false }, /* 3: 400 9.5 */ | |
265 | { 77, 0x9A, 0, 128, false }, /* 4: 600 0 */ | |
266 | { 116, 0x9A, 0, 85, false }, /* 5: 600 3.5 */ | |
267 | { 154, 0x9A, 0, 64, false }, /* 6: 600 6 */ | |
268 | { 102, 0x9A, 0, 128, false }, /* 7: 800 0 */ | |
269 | { 154, 0x9A, 0, 85, false }, /* 8: 800 3.5 */ | |
f8896f5d | 270 | { 154, 0x9A, 1, 128, false }, /* 9: 1200 0 */ |
96fb9f9b VK |
271 | }; |
272 | ||
d9d7000d SJ |
273 | static const struct bxt_ddi_buf_trans bxt_ddi_translations_edp[] = { |
274 | /* Idx NT mV diff db */ | |
275 | { 26, 0, 0, 128, false }, /* 0: 200 0 */ | |
276 | { 38, 0, 0, 112, false }, /* 1: 200 1.5 */ | |
277 | { 48, 0, 0, 96, false }, /* 2: 200 4 */ | |
278 | { 54, 0, 0, 69, false }, /* 3: 200 6 */ | |
279 | { 32, 0, 0, 128, false }, /* 4: 250 0 */ | |
280 | { 48, 0, 0, 104, false }, /* 5: 250 1.5 */ | |
281 | { 54, 0, 0, 85, false }, /* 6: 250 4 */ | |
282 | { 43, 0, 0, 128, false }, /* 7: 300 0 */ | |
283 | { 54, 0, 0, 101, false }, /* 8: 300 1.5 */ | |
284 | { 48, 0, 0, 128, false }, /* 9: 300 0 */ | |
285 | }; | |
286 | ||
96fb9f9b VK |
287 | /* BSpec has 2 recommended values - entries 0 and 8. |
288 | * Using the entry with higher vswing. | |
289 | */ | |
290 | static const struct bxt_ddi_buf_trans bxt_ddi_translations_hdmi[] = { | |
291 | /* Idx NT mV diff db */ | |
fe4c63c8 ID |
292 | { 52, 0x9A, 0, 128, false }, /* 0: 400 0 */ |
293 | { 52, 0x9A, 0, 85, false }, /* 1: 400 3.5 */ | |
294 | { 52, 0x9A, 0, 64, false }, /* 2: 400 6 */ | |
295 | { 42, 0x9A, 0, 43, false }, /* 3: 400 9.5 */ | |
296 | { 77, 0x9A, 0, 128, false }, /* 4: 600 0 */ | |
297 | { 77, 0x9A, 0, 85, false }, /* 5: 600 3.5 */ | |
298 | { 77, 0x9A, 0, 64, false }, /* 6: 600 6 */ | |
299 | { 102, 0x9A, 0, 128, false }, /* 7: 800 0 */ | |
300 | { 102, 0x9A, 0, 85, false }, /* 8: 800 3.5 */ | |
96fb9f9b VK |
301 | { 154, 0x9A, 1, 128, true }, /* 9: 1200 0 */ |
302 | }; | |
303 | ||
78ab0bae VS |
304 | static void bxt_ddi_vswing_sequence(struct drm_i915_private *dev_priv, |
305 | u32 level, enum port port, int type); | |
f8896f5d | 306 | |
a1e6ad66 ID |
307 | static void ddi_get_encoder_port(struct intel_encoder *intel_encoder, |
308 | struct intel_digital_port **dig_port, | |
309 | enum port *port) | |
fc914639 | 310 | { |
0bdee30e | 311 | struct drm_encoder *encoder = &intel_encoder->base; |
fc914639 | 312 | |
8cd21b7f JN |
313 | switch (intel_encoder->type) { |
314 | case INTEL_OUTPUT_DP_MST: | |
a1e6ad66 ID |
315 | *dig_port = enc_to_mst(encoder)->primary; |
316 | *port = (*dig_port)->port; | |
8cd21b7f | 317 | break; |
183aec16 CW |
318 | default: |
319 | WARN(1, "Invalid DDI encoder type %d\n", intel_encoder->type); | |
320 | /* fallthrough and treat as unknown */ | |
8cd21b7f JN |
321 | case INTEL_OUTPUT_DISPLAYPORT: |
322 | case INTEL_OUTPUT_EDP: | |
323 | case INTEL_OUTPUT_HDMI: | |
324 | case INTEL_OUTPUT_UNKNOWN: | |
a1e6ad66 ID |
325 | *dig_port = enc_to_dig_port(encoder); |
326 | *port = (*dig_port)->port; | |
8cd21b7f JN |
327 | break; |
328 | case INTEL_OUTPUT_ANALOG: | |
a1e6ad66 ID |
329 | *dig_port = NULL; |
330 | *port = PORT_E; | |
8cd21b7f | 331 | break; |
fc914639 PZ |
332 | } |
333 | } | |
334 | ||
a1e6ad66 ID |
335 | enum port intel_ddi_get_encoder_port(struct intel_encoder *intel_encoder) |
336 | { | |
337 | struct intel_digital_port *dig_port; | |
338 | enum port port; | |
339 | ||
340 | ddi_get_encoder_port(intel_encoder, &dig_port, &port); | |
341 | ||
342 | return port; | |
343 | } | |
344 | ||
acee2998 | 345 | static const struct ddi_buf_trans * |
78ab0bae | 346 | skl_get_buf_trans_dp(struct drm_i915_private *dev_priv, int *n_entries) |
f8896f5d | 347 | { |
78ab0bae | 348 | if (IS_SKL_ULX(dev_priv) || IS_KBL_ULX(dev_priv)) { |
5f8b2531 | 349 | *n_entries = ARRAY_SIZE(skl_y_ddi_translations_dp); |
acee2998 | 350 | return skl_y_ddi_translations_dp; |
78ab0bae | 351 | } else if (IS_SKL_ULT(dev_priv) || IS_KBL_ULT(dev_priv)) { |
f8896f5d | 352 | *n_entries = ARRAY_SIZE(skl_u_ddi_translations_dp); |
acee2998 | 353 | return skl_u_ddi_translations_dp; |
f8896f5d | 354 | } else { |
f8896f5d | 355 | *n_entries = ARRAY_SIZE(skl_ddi_translations_dp); |
acee2998 | 356 | return skl_ddi_translations_dp; |
f8896f5d | 357 | } |
f8896f5d DW |
358 | } |
359 | ||
acee2998 | 360 | static const struct ddi_buf_trans * |
78ab0bae | 361 | skl_get_buf_trans_edp(struct drm_i915_private *dev_priv, int *n_entries) |
f8896f5d | 362 | { |
06411f08 | 363 | if (dev_priv->vbt.edp.low_vswing) { |
78ab0bae | 364 | if (IS_SKL_ULX(dev_priv) || IS_KBL_ULX(dev_priv)) { |
5f8b2531 | 365 | *n_entries = ARRAY_SIZE(skl_y_ddi_translations_edp); |
acee2998 | 366 | return skl_y_ddi_translations_edp; |
78ab0bae | 367 | } else if (IS_SKL_ULT(dev_priv) || IS_KBL_ULT(dev_priv)) { |
f8896f5d | 368 | *n_entries = ARRAY_SIZE(skl_u_ddi_translations_edp); |
acee2998 | 369 | return skl_u_ddi_translations_edp; |
f8896f5d | 370 | } else { |
f8896f5d | 371 | *n_entries = ARRAY_SIZE(skl_ddi_translations_edp); |
acee2998 | 372 | return skl_ddi_translations_edp; |
f8896f5d DW |
373 | } |
374 | } | |
cd1101cb | 375 | |
78ab0bae | 376 | return skl_get_buf_trans_dp(dev_priv, n_entries); |
f8896f5d DW |
377 | } |
378 | ||
379 | static const struct ddi_buf_trans * | |
78ab0bae | 380 | skl_get_buf_trans_hdmi(struct drm_i915_private *dev_priv, int *n_entries) |
f8896f5d | 381 | { |
78ab0bae | 382 | if (IS_SKL_ULX(dev_priv) || IS_KBL_ULX(dev_priv)) { |
5f8b2531 | 383 | *n_entries = ARRAY_SIZE(skl_y_ddi_translations_hdmi); |
acee2998 | 384 | return skl_y_ddi_translations_hdmi; |
f8896f5d | 385 | } else { |
f8896f5d | 386 | *n_entries = ARRAY_SIZE(skl_ddi_translations_hdmi); |
acee2998 | 387 | return skl_ddi_translations_hdmi; |
f8896f5d | 388 | } |
f8896f5d DW |
389 | } |
390 | ||
e58623cb AR |
391 | /* |
392 | * Starting with Haswell, DDI port buffers must be programmed with correct | |
393 | * values in advance. The buffer values are different for FDI and DP modes, | |
45244b87 ED |
394 | * but the HDMI/DVI fields are shared among those. So we program the DDI |
395 | * in either FDI or DP modes only, as HDMI connections will work with both | |
396 | * of those | |
397 | */ | |
6a7e4f99 | 398 | void intel_prepare_ddi_buffer(struct intel_encoder *encoder) |
45244b87 | 399 | { |
6a7e4f99 | 400 | struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); |
75067dde | 401 | u32 iboost_bit = 0; |
7ff44670 | 402 | int i, n_hdmi_entries, n_dp_entries, n_edp_entries, hdmi_default_entry, |
7ad14a29 | 403 | size; |
6a7e4f99 VS |
404 | int hdmi_level; |
405 | enum port port; | |
10122051 JN |
406 | const struct ddi_buf_trans *ddi_translations_fdi; |
407 | const struct ddi_buf_trans *ddi_translations_dp; | |
408 | const struct ddi_buf_trans *ddi_translations_edp; | |
409 | const struct ddi_buf_trans *ddi_translations_hdmi; | |
410 | const struct ddi_buf_trans *ddi_translations; | |
e58623cb | 411 | |
6a7e4f99 VS |
412 | port = intel_ddi_get_encoder_port(encoder); |
413 | hdmi_level = dev_priv->vbt.ddi_port_info[port].hdmi_level_shift; | |
414 | ||
78ab0bae | 415 | if (IS_BROXTON(dev_priv)) { |
6a7e4f99 | 416 | if (encoder->type != INTEL_OUTPUT_HDMI) |
96fb9f9b VK |
417 | return; |
418 | ||
419 | /* Vswing programming for HDMI */ | |
78ab0bae | 420 | bxt_ddi_vswing_sequence(dev_priv, hdmi_level, port, |
96fb9f9b VK |
421 | INTEL_OUTPUT_HDMI); |
422 | return; | |
6a7e4f99 VS |
423 | } |
424 | ||
425 | if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) { | |
c30400fc | 426 | ddi_translations_fdi = NULL; |
f8896f5d | 427 | ddi_translations_dp = |
78ab0bae | 428 | skl_get_buf_trans_dp(dev_priv, &n_dp_entries); |
f8896f5d | 429 | ddi_translations_edp = |
78ab0bae | 430 | skl_get_buf_trans_edp(dev_priv, &n_edp_entries); |
f8896f5d | 431 | ddi_translations_hdmi = |
78ab0bae | 432 | skl_get_buf_trans_hdmi(dev_priv, &n_hdmi_entries); |
f8896f5d | 433 | hdmi_default_entry = 8; |
75067dde AK |
434 | /* If we're boosting the current, set bit 31 of trans1 */ |
435 | if (dev_priv->vbt.ddi_port_info[port].hdmi_boost_level || | |
436 | dev_priv->vbt.ddi_port_info[port].dp_boost_level) | |
437 | iboost_bit = 1<<31; | |
10afa0b6 | 438 | |
ceccad59 VS |
439 | if (WARN_ON(encoder->type == INTEL_OUTPUT_EDP && |
440 | port != PORT_A && port != PORT_E && | |
441 | n_edp_entries > 9)) | |
10afa0b6 | 442 | n_edp_entries = 9; |
78ab0bae | 443 | } else if (IS_BROADWELL(dev_priv)) { |
e58623cb AR |
444 | ddi_translations_fdi = bdw_ddi_translations_fdi; |
445 | ddi_translations_dp = bdw_ddi_translations_dp; | |
300644c7 | 446 | ddi_translations_edp = bdw_ddi_translations_edp; |
a26aa8ba | 447 | ddi_translations_hdmi = bdw_ddi_translations_hdmi; |
7ad14a29 SJ |
448 | n_edp_entries = ARRAY_SIZE(bdw_ddi_translations_edp); |
449 | n_dp_entries = ARRAY_SIZE(bdw_ddi_translations_dp); | |
10122051 | 450 | n_hdmi_entries = ARRAY_SIZE(bdw_ddi_translations_hdmi); |
7ff44670 | 451 | hdmi_default_entry = 7; |
78ab0bae | 452 | } else if (IS_HASWELL(dev_priv)) { |
e58623cb AR |
453 | ddi_translations_fdi = hsw_ddi_translations_fdi; |
454 | ddi_translations_dp = hsw_ddi_translations_dp; | |
300644c7 | 455 | ddi_translations_edp = hsw_ddi_translations_dp; |
a26aa8ba | 456 | ddi_translations_hdmi = hsw_ddi_translations_hdmi; |
7ad14a29 | 457 | n_dp_entries = n_edp_entries = ARRAY_SIZE(hsw_ddi_translations_dp); |
10122051 | 458 | n_hdmi_entries = ARRAY_SIZE(hsw_ddi_translations_hdmi); |
7ff44670 | 459 | hdmi_default_entry = 6; |
e58623cb AR |
460 | } else { |
461 | WARN(1, "ddi translation table missing\n"); | |
300644c7 | 462 | ddi_translations_edp = bdw_ddi_translations_dp; |
e58623cb AR |
463 | ddi_translations_fdi = bdw_ddi_translations_fdi; |
464 | ddi_translations_dp = bdw_ddi_translations_dp; | |
a26aa8ba | 465 | ddi_translations_hdmi = bdw_ddi_translations_hdmi; |
7ad14a29 SJ |
466 | n_edp_entries = ARRAY_SIZE(bdw_ddi_translations_edp); |
467 | n_dp_entries = ARRAY_SIZE(bdw_ddi_translations_dp); | |
10122051 | 468 | n_hdmi_entries = ARRAY_SIZE(bdw_ddi_translations_hdmi); |
7ff44670 | 469 | hdmi_default_entry = 7; |
e58623cb AR |
470 | } |
471 | ||
6a7e4f99 VS |
472 | switch (encoder->type) { |
473 | case INTEL_OUTPUT_EDP: | |
300644c7 | 474 | ddi_translations = ddi_translations_edp; |
7ad14a29 | 475 | size = n_edp_entries; |
300644c7 | 476 | break; |
6a7e4f99 VS |
477 | case INTEL_OUTPUT_DISPLAYPORT: |
478 | case INTEL_OUTPUT_HDMI: | |
300644c7 | 479 | ddi_translations = ddi_translations_dp; |
7ad14a29 | 480 | size = n_dp_entries; |
300644c7 | 481 | break; |
6a7e4f99 VS |
482 | case INTEL_OUTPUT_ANALOG: |
483 | ddi_translations = ddi_translations_fdi; | |
7ad14a29 | 484 | size = n_dp_entries; |
300644c7 PZ |
485 | break; |
486 | default: | |
487 | BUG(); | |
488 | } | |
45244b87 | 489 | |
9712e688 VS |
490 | for (i = 0; i < size; i++) { |
491 | I915_WRITE(DDI_BUF_TRANS_LO(port, i), | |
492 | ddi_translations[i].trans1 | iboost_bit); | |
493 | I915_WRITE(DDI_BUF_TRANS_HI(port, i), | |
494 | ddi_translations[i].trans2); | |
45244b87 | 495 | } |
ce4dd49e | 496 | |
6a7e4f99 | 497 | if (encoder->type != INTEL_OUTPUT_HDMI) |
ce3b7e9b DL |
498 | return; |
499 | ||
ce4dd49e DL |
500 | /* Choose a good default if VBT is badly populated */ |
501 | if (hdmi_level == HDMI_LEVEL_SHIFT_UNKNOWN || | |
502 | hdmi_level >= n_hdmi_entries) | |
7ff44670 | 503 | hdmi_level = hdmi_default_entry; |
ce4dd49e | 504 | |
6acab15a | 505 | /* Entry 9 is for HDMI: */ |
9712e688 VS |
506 | I915_WRITE(DDI_BUF_TRANS_LO(port, i), |
507 | ddi_translations_hdmi[hdmi_level].trans1 | iboost_bit); | |
508 | I915_WRITE(DDI_BUF_TRANS_HI(port, i), | |
509 | ddi_translations_hdmi[hdmi_level].trans2); | |
45244b87 ED |
510 | } |
511 | ||
248138b5 PZ |
512 | static void intel_wait_ddi_buf_idle(struct drm_i915_private *dev_priv, |
513 | enum port port) | |
514 | { | |
f0f59a00 | 515 | i915_reg_t reg = DDI_BUF_CTL(port); |
248138b5 PZ |
516 | int i; |
517 | ||
3449ca85 | 518 | for (i = 0; i < 16; i++) { |
248138b5 PZ |
519 | udelay(1); |
520 | if (I915_READ(reg) & DDI_BUF_IS_IDLE) | |
521 | return; | |
522 | } | |
523 | DRM_ERROR("Timeout waiting for DDI BUF %c idle bit\n", port_name(port)); | |
524 | } | |
c82e4d26 ED |
525 | |
526 | /* Starting with Haswell, different DDI ports can work in FDI mode for | |
527 | * connection to the PCH-located connectors. For this, it is necessary to train | |
528 | * both the DDI port and PCH receiver for the desired DDI buffer settings. | |
529 | * | |
530 | * The recommended port to work in FDI mode is DDI E, which we use here. Also, | |
531 | * please note that when FDI mode is active on DDI E, it shares 2 lines with | |
532 | * DDI A (which is used for eDP) | |
533 | */ | |
534 | ||
535 | void hsw_fdi_link_train(struct drm_crtc *crtc) | |
536 | { | |
537 | struct drm_device *dev = crtc->dev; | |
538 | struct drm_i915_private *dev_priv = dev->dev_private; | |
539 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6a7e4f99 | 540 | struct intel_encoder *encoder; |
04945641 | 541 | u32 temp, i, rx_ctl_val; |
c82e4d26 | 542 | |
6a7e4f99 VS |
543 | for_each_encoder_on_crtc(dev, crtc, encoder) { |
544 | WARN_ON(encoder->type != INTEL_OUTPUT_ANALOG); | |
545 | intel_prepare_ddi_buffer(encoder); | |
546 | } | |
547 | ||
04945641 PZ |
548 | /* Set the FDI_RX_MISC pwrdn lanes and the 2 workarounds listed at the |
549 | * mode set "sequence for CRT port" document: | |
550 | * - TP1 to TP2 time with the default value | |
551 | * - FDI delay to 90h | |
8693a824 DL |
552 | * |
553 | * WaFDIAutoLinkSetTimingOverrride:hsw | |
04945641 | 554 | */ |
eede3b53 | 555 | I915_WRITE(FDI_RX_MISC(PIPE_A), FDI_RX_PWRDN_LANE1_VAL(2) | |
04945641 PZ |
556 | FDI_RX_PWRDN_LANE0_VAL(2) | |
557 | FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90); | |
558 | ||
559 | /* Enable the PCH Receiver FDI PLL */ | |
3e68320e | 560 | rx_ctl_val = dev_priv->fdi_rx_config | FDI_RX_ENHANCE_FRAME_ENABLE | |
33d29b14 | 561 | FDI_RX_PLL_ENABLE | |
6e3c9717 | 562 | FDI_DP_PORT_WIDTH(intel_crtc->config->fdi_lanes); |
eede3b53 VS |
563 | I915_WRITE(FDI_RX_CTL(PIPE_A), rx_ctl_val); |
564 | POSTING_READ(FDI_RX_CTL(PIPE_A)); | |
04945641 PZ |
565 | udelay(220); |
566 | ||
567 | /* Switch from Rawclk to PCDclk */ | |
568 | rx_ctl_val |= FDI_PCDCLK; | |
eede3b53 | 569 | I915_WRITE(FDI_RX_CTL(PIPE_A), rx_ctl_val); |
04945641 PZ |
570 | |
571 | /* Configure Port Clock Select */ | |
6e3c9717 ACO |
572 | I915_WRITE(PORT_CLK_SEL(PORT_E), intel_crtc->config->ddi_pll_sel); |
573 | WARN_ON(intel_crtc->config->ddi_pll_sel != PORT_CLK_SEL_SPLL); | |
04945641 PZ |
574 | |
575 | /* Start the training iterating through available voltages and emphasis, | |
576 | * testing each value twice. */ | |
10122051 | 577 | for (i = 0; i < ARRAY_SIZE(hsw_ddi_translations_fdi) * 2; i++) { |
c82e4d26 ED |
578 | /* Configure DP_TP_CTL with auto-training */ |
579 | I915_WRITE(DP_TP_CTL(PORT_E), | |
580 | DP_TP_CTL_FDI_AUTOTRAIN | | |
581 | DP_TP_CTL_ENHANCED_FRAME_ENABLE | | |
582 | DP_TP_CTL_LINK_TRAIN_PAT1 | | |
583 | DP_TP_CTL_ENABLE); | |
584 | ||
876a8cdf DL |
585 | /* Configure and enable DDI_BUF_CTL for DDI E with next voltage. |
586 | * DDI E does not support port reversal, the functionality is | |
587 | * achieved on the PCH side in FDI_RX_CTL, so no need to set the | |
588 | * port reversal bit */ | |
c82e4d26 | 589 | I915_WRITE(DDI_BUF_CTL(PORT_E), |
04945641 | 590 | DDI_BUF_CTL_ENABLE | |
6e3c9717 | 591 | ((intel_crtc->config->fdi_lanes - 1) << 1) | |
c5fe6a06 | 592 | DDI_BUF_TRANS_SELECT(i / 2)); |
04945641 | 593 | POSTING_READ(DDI_BUF_CTL(PORT_E)); |
c82e4d26 ED |
594 | |
595 | udelay(600); | |
596 | ||
04945641 | 597 | /* Program PCH FDI Receiver TU */ |
eede3b53 | 598 | I915_WRITE(FDI_RX_TUSIZE1(PIPE_A), TU_SIZE(64)); |
04945641 PZ |
599 | |
600 | /* Enable PCH FDI Receiver with auto-training */ | |
601 | rx_ctl_val |= FDI_RX_ENABLE | FDI_LINK_TRAIN_AUTO; | |
eede3b53 VS |
602 | I915_WRITE(FDI_RX_CTL(PIPE_A), rx_ctl_val); |
603 | POSTING_READ(FDI_RX_CTL(PIPE_A)); | |
04945641 PZ |
604 | |
605 | /* Wait for FDI receiver lane calibration */ | |
606 | udelay(30); | |
607 | ||
608 | /* Unset FDI_RX_MISC pwrdn lanes */ | |
eede3b53 | 609 | temp = I915_READ(FDI_RX_MISC(PIPE_A)); |
04945641 | 610 | temp &= ~(FDI_RX_PWRDN_LANE1_MASK | FDI_RX_PWRDN_LANE0_MASK); |
eede3b53 VS |
611 | I915_WRITE(FDI_RX_MISC(PIPE_A), temp); |
612 | POSTING_READ(FDI_RX_MISC(PIPE_A)); | |
04945641 PZ |
613 | |
614 | /* Wait for FDI auto training time */ | |
615 | udelay(5); | |
c82e4d26 ED |
616 | |
617 | temp = I915_READ(DP_TP_STATUS(PORT_E)); | |
618 | if (temp & DP_TP_STATUS_AUTOTRAIN_DONE) { | |
04945641 | 619 | DRM_DEBUG_KMS("FDI link training done on step %d\n", i); |
a308ccb3 VS |
620 | break; |
621 | } | |
c82e4d26 | 622 | |
a308ccb3 VS |
623 | /* |
624 | * Leave things enabled even if we failed to train FDI. | |
625 | * Results in less fireworks from the state checker. | |
626 | */ | |
627 | if (i == ARRAY_SIZE(hsw_ddi_translations_fdi) * 2 - 1) { | |
628 | DRM_ERROR("FDI link training failed!\n"); | |
629 | break; | |
c82e4d26 | 630 | } |
04945641 | 631 | |
5b421c57 VS |
632 | rx_ctl_val &= ~FDI_RX_ENABLE; |
633 | I915_WRITE(FDI_RX_CTL(PIPE_A), rx_ctl_val); | |
634 | POSTING_READ(FDI_RX_CTL(PIPE_A)); | |
635 | ||
248138b5 PZ |
636 | temp = I915_READ(DDI_BUF_CTL(PORT_E)); |
637 | temp &= ~DDI_BUF_CTL_ENABLE; | |
638 | I915_WRITE(DDI_BUF_CTL(PORT_E), temp); | |
639 | POSTING_READ(DDI_BUF_CTL(PORT_E)); | |
640 | ||
04945641 | 641 | /* Disable DP_TP_CTL and FDI_RX_CTL and retry */ |
248138b5 PZ |
642 | temp = I915_READ(DP_TP_CTL(PORT_E)); |
643 | temp &= ~(DP_TP_CTL_ENABLE | DP_TP_CTL_LINK_TRAIN_MASK); | |
644 | temp |= DP_TP_CTL_LINK_TRAIN_PAT1; | |
645 | I915_WRITE(DP_TP_CTL(PORT_E), temp); | |
646 | POSTING_READ(DP_TP_CTL(PORT_E)); | |
647 | ||
648 | intel_wait_ddi_buf_idle(dev_priv, PORT_E); | |
04945641 | 649 | |
04945641 | 650 | /* Reset FDI_RX_MISC pwrdn lanes */ |
eede3b53 | 651 | temp = I915_READ(FDI_RX_MISC(PIPE_A)); |
04945641 PZ |
652 | temp &= ~(FDI_RX_PWRDN_LANE1_MASK | FDI_RX_PWRDN_LANE0_MASK); |
653 | temp |= FDI_RX_PWRDN_LANE1_VAL(2) | FDI_RX_PWRDN_LANE0_VAL(2); | |
eede3b53 VS |
654 | I915_WRITE(FDI_RX_MISC(PIPE_A), temp); |
655 | POSTING_READ(FDI_RX_MISC(PIPE_A)); | |
c82e4d26 ED |
656 | } |
657 | ||
a308ccb3 VS |
658 | /* Enable normal pixel sending for FDI */ |
659 | I915_WRITE(DP_TP_CTL(PORT_E), | |
660 | DP_TP_CTL_FDI_AUTOTRAIN | | |
661 | DP_TP_CTL_LINK_TRAIN_NORMAL | | |
662 | DP_TP_CTL_ENHANCED_FRAME_ENABLE | | |
663 | DP_TP_CTL_ENABLE); | |
c82e4d26 | 664 | } |
0e72a5b5 | 665 | |
44905a27 DA |
666 | void intel_ddi_init_dp_buf_reg(struct intel_encoder *encoder) |
667 | { | |
668 | struct intel_dp *intel_dp = enc_to_intel_dp(&encoder->base); | |
669 | struct intel_digital_port *intel_dig_port = | |
670 | enc_to_dig_port(&encoder->base); | |
671 | ||
672 | intel_dp->DP = intel_dig_port->saved_port_bits | | |
c5fe6a06 | 673 | DDI_BUF_CTL_ENABLE | DDI_BUF_TRANS_SELECT(0); |
901c2daf | 674 | intel_dp->DP |= DDI_PORT_WIDTH(intel_dp->lane_count); |
44905a27 DA |
675 | } |
676 | ||
8d9ddbcb PZ |
677 | static struct intel_encoder * |
678 | intel_ddi_get_crtc_encoder(struct drm_crtc *crtc) | |
679 | { | |
680 | struct drm_device *dev = crtc->dev; | |
681 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
682 | struct intel_encoder *intel_encoder, *ret = NULL; | |
683 | int num_encoders = 0; | |
684 | ||
685 | for_each_encoder_on_crtc(dev, crtc, intel_encoder) { | |
686 | ret = intel_encoder; | |
687 | num_encoders++; | |
688 | } | |
689 | ||
690 | if (num_encoders != 1) | |
84f44ce7 VS |
691 | WARN(1, "%d encoders on crtc for pipe %c\n", num_encoders, |
692 | pipe_name(intel_crtc->pipe)); | |
8d9ddbcb PZ |
693 | |
694 | BUG_ON(ret == NULL); | |
695 | return ret; | |
696 | } | |
697 | ||
bcddf610 | 698 | struct intel_encoder * |
3165c074 | 699 | intel_ddi_get_crtc_new_encoder(struct intel_crtc_state *crtc_state) |
d0737e1d | 700 | { |
3165c074 ACO |
701 | struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc); |
702 | struct intel_encoder *ret = NULL; | |
703 | struct drm_atomic_state *state; | |
da3ced29 ACO |
704 | struct drm_connector *connector; |
705 | struct drm_connector_state *connector_state; | |
d0737e1d | 706 | int num_encoders = 0; |
3165c074 | 707 | int i; |
d0737e1d | 708 | |
3165c074 ACO |
709 | state = crtc_state->base.state; |
710 | ||
da3ced29 ACO |
711 | for_each_connector_in_state(state, connector, connector_state, i) { |
712 | if (connector_state->crtc != crtc_state->base.crtc) | |
3165c074 ACO |
713 | continue; |
714 | ||
da3ced29 | 715 | ret = to_intel_encoder(connector_state->best_encoder); |
3165c074 | 716 | num_encoders++; |
d0737e1d ACO |
717 | } |
718 | ||
719 | WARN(num_encoders != 1, "%d encoders on crtc for pipe %c\n", num_encoders, | |
720 | pipe_name(crtc->pipe)); | |
721 | ||
722 | BUG_ON(ret == NULL); | |
723 | return ret; | |
724 | } | |
725 | ||
1c0b85c5 | 726 | #define LC_FREQ 2700 |
1c0b85c5 | 727 | |
f0f59a00 VS |
728 | static int hsw_ddi_calc_wrpll_link(struct drm_i915_private *dev_priv, |
729 | i915_reg_t reg) | |
11578553 JB |
730 | { |
731 | int refclk = LC_FREQ; | |
732 | int n, p, r; | |
733 | u32 wrpll; | |
734 | ||
735 | wrpll = I915_READ(reg); | |
114fe488 DV |
736 | switch (wrpll & WRPLL_PLL_REF_MASK) { |
737 | case WRPLL_PLL_SSC: | |
738 | case WRPLL_PLL_NON_SSC: | |
11578553 JB |
739 | /* |
740 | * We could calculate spread here, but our checking | |
741 | * code only cares about 5% accuracy, and spread is a max of | |
742 | * 0.5% downspread. | |
743 | */ | |
744 | refclk = 135; | |
745 | break; | |
114fe488 | 746 | case WRPLL_PLL_LCPLL: |
11578553 JB |
747 | refclk = LC_FREQ; |
748 | break; | |
749 | default: | |
750 | WARN(1, "bad wrpll refclk\n"); | |
751 | return 0; | |
752 | } | |
753 | ||
754 | r = wrpll & WRPLL_DIVIDER_REF_MASK; | |
755 | p = (wrpll & WRPLL_DIVIDER_POST_MASK) >> WRPLL_DIVIDER_POST_SHIFT; | |
756 | n = (wrpll & WRPLL_DIVIDER_FB_MASK) >> WRPLL_DIVIDER_FB_SHIFT; | |
757 | ||
20f0ec16 JB |
758 | /* Convert to KHz, p & r have a fixed point portion */ |
759 | return (refclk * n * 100) / (p * r); | |
11578553 JB |
760 | } |
761 | ||
540e732c S |
762 | static int skl_calc_wrpll_link(struct drm_i915_private *dev_priv, |
763 | uint32_t dpll) | |
764 | { | |
f0f59a00 | 765 | i915_reg_t cfgcr1_reg, cfgcr2_reg; |
540e732c S |
766 | uint32_t cfgcr1_val, cfgcr2_val; |
767 | uint32_t p0, p1, p2, dco_freq; | |
768 | ||
923c1241 VS |
769 | cfgcr1_reg = DPLL_CFGCR1(dpll); |
770 | cfgcr2_reg = DPLL_CFGCR2(dpll); | |
540e732c S |
771 | |
772 | cfgcr1_val = I915_READ(cfgcr1_reg); | |
773 | cfgcr2_val = I915_READ(cfgcr2_reg); | |
774 | ||
775 | p0 = cfgcr2_val & DPLL_CFGCR2_PDIV_MASK; | |
776 | p2 = cfgcr2_val & DPLL_CFGCR2_KDIV_MASK; | |
777 | ||
778 | if (cfgcr2_val & DPLL_CFGCR2_QDIV_MODE(1)) | |
779 | p1 = (cfgcr2_val & DPLL_CFGCR2_QDIV_RATIO_MASK) >> 8; | |
780 | else | |
781 | p1 = 1; | |
782 | ||
783 | ||
784 | switch (p0) { | |
785 | case DPLL_CFGCR2_PDIV_1: | |
786 | p0 = 1; | |
787 | break; | |
788 | case DPLL_CFGCR2_PDIV_2: | |
789 | p0 = 2; | |
790 | break; | |
791 | case DPLL_CFGCR2_PDIV_3: | |
792 | p0 = 3; | |
793 | break; | |
794 | case DPLL_CFGCR2_PDIV_7: | |
795 | p0 = 7; | |
796 | break; | |
797 | } | |
798 | ||
799 | switch (p2) { | |
800 | case DPLL_CFGCR2_KDIV_5: | |
801 | p2 = 5; | |
802 | break; | |
803 | case DPLL_CFGCR2_KDIV_2: | |
804 | p2 = 2; | |
805 | break; | |
806 | case DPLL_CFGCR2_KDIV_3: | |
807 | p2 = 3; | |
808 | break; | |
809 | case DPLL_CFGCR2_KDIV_1: | |
810 | p2 = 1; | |
811 | break; | |
812 | } | |
813 | ||
814 | dco_freq = (cfgcr1_val & DPLL_CFGCR1_DCO_INTEGER_MASK) * 24 * 1000; | |
815 | ||
816 | dco_freq += (((cfgcr1_val & DPLL_CFGCR1_DCO_FRACTION_MASK) >> 9) * 24 * | |
817 | 1000) / 0x8000; | |
818 | ||
819 | return dco_freq / (p0 * p1 * p2 * 5); | |
820 | } | |
821 | ||
398a017e VS |
822 | static void ddi_dotclock_get(struct intel_crtc_state *pipe_config) |
823 | { | |
824 | int dotclock; | |
825 | ||
826 | if (pipe_config->has_pch_encoder) | |
827 | dotclock = intel_dotclock_calculate(pipe_config->port_clock, | |
828 | &pipe_config->fdi_m_n); | |
829 | else if (pipe_config->has_dp_encoder) | |
830 | dotclock = intel_dotclock_calculate(pipe_config->port_clock, | |
831 | &pipe_config->dp_m_n); | |
832 | else if (pipe_config->has_hdmi_sink && pipe_config->pipe_bpp == 36) | |
833 | dotclock = pipe_config->port_clock * 2 / 3; | |
834 | else | |
835 | dotclock = pipe_config->port_clock; | |
836 | ||
837 | if (pipe_config->pixel_multiplier) | |
838 | dotclock /= pipe_config->pixel_multiplier; | |
839 | ||
840 | pipe_config->base.adjusted_mode.crtc_clock = dotclock; | |
841 | } | |
540e732c S |
842 | |
843 | static void skl_ddi_clock_get(struct intel_encoder *encoder, | |
5cec258b | 844 | struct intel_crtc_state *pipe_config) |
540e732c S |
845 | { |
846 | struct drm_i915_private *dev_priv = encoder->base.dev->dev_private; | |
540e732c S |
847 | int link_clock = 0; |
848 | uint32_t dpll_ctl1, dpll; | |
849 | ||
134ffa44 | 850 | dpll = pipe_config->ddi_pll_sel; |
540e732c S |
851 | |
852 | dpll_ctl1 = I915_READ(DPLL_CTRL1); | |
853 | ||
854 | if (dpll_ctl1 & DPLL_CTRL1_HDMI_MODE(dpll)) { | |
855 | link_clock = skl_calc_wrpll_link(dev_priv, dpll); | |
856 | } else { | |
71cd8423 DL |
857 | link_clock = dpll_ctl1 & DPLL_CTRL1_LINK_RATE_MASK(dpll); |
858 | link_clock >>= DPLL_CTRL1_LINK_RATE_SHIFT(dpll); | |
540e732c S |
859 | |
860 | switch (link_clock) { | |
71cd8423 | 861 | case DPLL_CTRL1_LINK_RATE_810: |
540e732c S |
862 | link_clock = 81000; |
863 | break; | |
71cd8423 | 864 | case DPLL_CTRL1_LINK_RATE_1080: |
a8f3ef61 SJ |
865 | link_clock = 108000; |
866 | break; | |
71cd8423 | 867 | case DPLL_CTRL1_LINK_RATE_1350: |
540e732c S |
868 | link_clock = 135000; |
869 | break; | |
71cd8423 | 870 | case DPLL_CTRL1_LINK_RATE_1620: |
a8f3ef61 SJ |
871 | link_clock = 162000; |
872 | break; | |
71cd8423 | 873 | case DPLL_CTRL1_LINK_RATE_2160: |
a8f3ef61 SJ |
874 | link_clock = 216000; |
875 | break; | |
71cd8423 | 876 | case DPLL_CTRL1_LINK_RATE_2700: |
540e732c S |
877 | link_clock = 270000; |
878 | break; | |
879 | default: | |
880 | WARN(1, "Unsupported link rate\n"); | |
881 | break; | |
882 | } | |
883 | link_clock *= 2; | |
884 | } | |
885 | ||
886 | pipe_config->port_clock = link_clock; | |
887 | ||
398a017e | 888 | ddi_dotclock_get(pipe_config); |
540e732c S |
889 | } |
890 | ||
3d51278a | 891 | static void hsw_ddi_clock_get(struct intel_encoder *encoder, |
5cec258b | 892 | struct intel_crtc_state *pipe_config) |
11578553 JB |
893 | { |
894 | struct drm_i915_private *dev_priv = encoder->base.dev->dev_private; | |
11578553 JB |
895 | int link_clock = 0; |
896 | u32 val, pll; | |
897 | ||
26804afd | 898 | val = pipe_config->ddi_pll_sel; |
11578553 JB |
899 | switch (val & PORT_CLK_SEL_MASK) { |
900 | case PORT_CLK_SEL_LCPLL_810: | |
901 | link_clock = 81000; | |
902 | break; | |
903 | case PORT_CLK_SEL_LCPLL_1350: | |
904 | link_clock = 135000; | |
905 | break; | |
906 | case PORT_CLK_SEL_LCPLL_2700: | |
907 | link_clock = 270000; | |
908 | break; | |
909 | case PORT_CLK_SEL_WRPLL1: | |
01403de3 | 910 | link_clock = hsw_ddi_calc_wrpll_link(dev_priv, WRPLL_CTL(0)); |
11578553 JB |
911 | break; |
912 | case PORT_CLK_SEL_WRPLL2: | |
01403de3 | 913 | link_clock = hsw_ddi_calc_wrpll_link(dev_priv, WRPLL_CTL(1)); |
11578553 JB |
914 | break; |
915 | case PORT_CLK_SEL_SPLL: | |
916 | pll = I915_READ(SPLL_CTL) & SPLL_PLL_FREQ_MASK; | |
917 | if (pll == SPLL_PLL_FREQ_810MHz) | |
918 | link_clock = 81000; | |
919 | else if (pll == SPLL_PLL_FREQ_1350MHz) | |
920 | link_clock = 135000; | |
921 | else if (pll == SPLL_PLL_FREQ_2700MHz) | |
922 | link_clock = 270000; | |
923 | else { | |
924 | WARN(1, "bad spll freq\n"); | |
925 | return; | |
926 | } | |
927 | break; | |
928 | default: | |
929 | WARN(1, "bad port clock sel\n"); | |
930 | return; | |
931 | } | |
932 | ||
933 | pipe_config->port_clock = link_clock * 2; | |
934 | ||
398a017e | 935 | ddi_dotclock_get(pipe_config); |
11578553 JB |
936 | } |
937 | ||
977bb38d S |
938 | static int bxt_calc_pll_link(struct drm_i915_private *dev_priv, |
939 | enum intel_dpll_id dpll) | |
940 | { | |
aa610dcb ID |
941 | struct intel_shared_dpll *pll; |
942 | struct intel_dpll_hw_state *state; | |
943 | intel_clock_t clock; | |
944 | ||
945 | /* For DDI ports we always use a shared PLL. */ | |
946 | if (WARN_ON(dpll == DPLL_ID_PRIVATE)) | |
947 | return 0; | |
948 | ||
949 | pll = &dev_priv->shared_dplls[dpll]; | |
950 | state = &pll->config.hw_state; | |
951 | ||
952 | clock.m1 = 2; | |
953 | clock.m2 = (state->pll0 & PORT_PLL_M2_MASK) << 22; | |
954 | if (state->pll3 & PORT_PLL_M2_FRAC_ENABLE) | |
955 | clock.m2 |= state->pll2 & PORT_PLL_M2_FRAC_MASK; | |
956 | clock.n = (state->pll1 & PORT_PLL_N_MASK) >> PORT_PLL_N_SHIFT; | |
957 | clock.p1 = (state->ebb0 & PORT_PLL_P1_MASK) >> PORT_PLL_P1_SHIFT; | |
958 | clock.p2 = (state->ebb0 & PORT_PLL_P2_MASK) >> PORT_PLL_P2_SHIFT; | |
959 | ||
960 | return chv_calc_dpll_params(100000, &clock); | |
977bb38d S |
961 | } |
962 | ||
963 | static void bxt_ddi_clock_get(struct intel_encoder *encoder, | |
964 | struct intel_crtc_state *pipe_config) | |
965 | { | |
966 | struct drm_i915_private *dev_priv = encoder->base.dev->dev_private; | |
967 | enum port port = intel_ddi_get_encoder_port(encoder); | |
968 | uint32_t dpll = port; | |
969 | ||
398a017e | 970 | pipe_config->port_clock = bxt_calc_pll_link(dev_priv, dpll); |
977bb38d | 971 | |
398a017e | 972 | ddi_dotclock_get(pipe_config); |
977bb38d S |
973 | } |
974 | ||
3d51278a | 975 | void intel_ddi_clock_get(struct intel_encoder *encoder, |
5cec258b | 976 | struct intel_crtc_state *pipe_config) |
3d51278a | 977 | { |
22606a18 DL |
978 | struct drm_device *dev = encoder->base.dev; |
979 | ||
980 | if (INTEL_INFO(dev)->gen <= 8) | |
981 | hsw_ddi_clock_get(encoder, pipe_config); | |
ef11bdb3 | 982 | else if (IS_SKYLAKE(dev) || IS_KABYLAKE(dev)) |
22606a18 | 983 | skl_ddi_clock_get(encoder, pipe_config); |
977bb38d S |
984 | else if (IS_BROXTON(dev)) |
985 | bxt_ddi_clock_get(encoder, pipe_config); | |
3d51278a DV |
986 | } |
987 | ||
0220ab6e | 988 | static bool |
d664c0ce | 989 | hsw_ddi_pll_select(struct intel_crtc *intel_crtc, |
190f68c5 | 990 | struct intel_crtc_state *crtc_state, |
96f3f1f9 | 991 | struct intel_encoder *intel_encoder) |
6441ab5f | 992 | { |
daedf20a | 993 | struct intel_shared_dpll *pll; |
6441ab5f | 994 | |
9d16da65 ACO |
995 | pll = intel_get_shared_dpll(intel_crtc, crtc_state, |
996 | intel_encoder); | |
997 | if (!pll) | |
998 | DRM_DEBUG_DRIVER("failed to find PLL for pipe %c\n", | |
999 | pipe_name(intel_crtc->pipe)); | |
1000 | ||
1001 | return pll; | |
6441ab5f PZ |
1002 | } |
1003 | ||
82d35437 S |
1004 | static bool |
1005 | skl_ddi_pll_select(struct intel_crtc *intel_crtc, | |
190f68c5 | 1006 | struct intel_crtc_state *crtc_state, |
96f3f1f9 | 1007 | struct intel_encoder *intel_encoder) |
82d35437 S |
1008 | { |
1009 | struct intel_shared_dpll *pll; | |
82d35437 | 1010 | |
daedf20a | 1011 | pll = intel_get_shared_dpll(intel_crtc, crtc_state, intel_encoder); |
82d35437 S |
1012 | if (pll == NULL) { |
1013 | DRM_DEBUG_DRIVER("failed to find PLL for pipe %c\n", | |
1014 | pipe_name(intel_crtc->pipe)); | |
1015 | return false; | |
1016 | } | |
1017 | ||
82d35437 S |
1018 | return true; |
1019 | } | |
0220ab6e | 1020 | |
d683f3bc S |
1021 | static bool |
1022 | bxt_ddi_pll_select(struct intel_crtc *intel_crtc, | |
1023 | struct intel_crtc_state *crtc_state, | |
96f3f1f9 | 1024 | struct intel_encoder *intel_encoder) |
d683f3bc | 1025 | { |
34177c24 | 1026 | return !!intel_get_shared_dpll(intel_crtc, crtc_state, intel_encoder); |
d683f3bc S |
1027 | } |
1028 | ||
0220ab6e DL |
1029 | /* |
1030 | * Tries to find a *shared* PLL for the CRTC and store it in | |
1031 | * intel_crtc->ddi_pll_sel. | |
1032 | * | |
1033 | * For private DPLLs, compute_config() should do the selection for us. This | |
1034 | * function should be folded into compute_config() eventually. | |
1035 | */ | |
190f68c5 ACO |
1036 | bool intel_ddi_pll_select(struct intel_crtc *intel_crtc, |
1037 | struct intel_crtc_state *crtc_state) | |
0220ab6e | 1038 | { |
82d35437 | 1039 | struct drm_device *dev = intel_crtc->base.dev; |
d0737e1d | 1040 | struct intel_encoder *intel_encoder = |
3165c074 | 1041 | intel_ddi_get_crtc_new_encoder(crtc_state); |
0220ab6e | 1042 | |
ef11bdb3 | 1043 | if (IS_SKYLAKE(dev) || IS_KABYLAKE(dev)) |
190f68c5 | 1044 | return skl_ddi_pll_select(intel_crtc, crtc_state, |
96f3f1f9 | 1045 | intel_encoder); |
d683f3bc S |
1046 | else if (IS_BROXTON(dev)) |
1047 | return bxt_ddi_pll_select(intel_crtc, crtc_state, | |
96f3f1f9 | 1048 | intel_encoder); |
82d35437 | 1049 | else |
190f68c5 | 1050 | return hsw_ddi_pll_select(intel_crtc, crtc_state, |
96f3f1f9 | 1051 | intel_encoder); |
0220ab6e DL |
1052 | } |
1053 | ||
dae84799 PZ |
1054 | void intel_ddi_set_pipe_settings(struct drm_crtc *crtc) |
1055 | { | |
1056 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; | |
1057 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
1058 | struct intel_encoder *intel_encoder = intel_ddi_get_crtc_encoder(crtc); | |
6e3c9717 | 1059 | enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder; |
dae84799 PZ |
1060 | int type = intel_encoder->type; |
1061 | uint32_t temp; | |
1062 | ||
0e32b39c | 1063 | if (type == INTEL_OUTPUT_DISPLAYPORT || type == INTEL_OUTPUT_EDP || type == INTEL_OUTPUT_DP_MST) { |
4d1de975 JN |
1064 | WARN_ON(transcoder_is_dsi(cpu_transcoder)); |
1065 | ||
c9809791 | 1066 | temp = TRANS_MSA_SYNC_CLK; |
6e3c9717 | 1067 | switch (intel_crtc->config->pipe_bpp) { |
dae84799 | 1068 | case 18: |
c9809791 | 1069 | temp |= TRANS_MSA_6_BPC; |
dae84799 PZ |
1070 | break; |
1071 | case 24: | |
c9809791 | 1072 | temp |= TRANS_MSA_8_BPC; |
dae84799 PZ |
1073 | break; |
1074 | case 30: | |
c9809791 | 1075 | temp |= TRANS_MSA_10_BPC; |
dae84799 PZ |
1076 | break; |
1077 | case 36: | |
c9809791 | 1078 | temp |= TRANS_MSA_12_BPC; |
dae84799 PZ |
1079 | break; |
1080 | default: | |
4e53c2e0 | 1081 | BUG(); |
dae84799 | 1082 | } |
c9809791 | 1083 | I915_WRITE(TRANS_MSA_MISC(cpu_transcoder), temp); |
dae84799 PZ |
1084 | } |
1085 | } | |
1086 | ||
0e32b39c DA |
1087 | void intel_ddi_set_vc_payload_alloc(struct drm_crtc *crtc, bool state) |
1088 | { | |
1089 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
1090 | struct drm_device *dev = crtc->dev; | |
1091 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6e3c9717 | 1092 | enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder; |
0e32b39c DA |
1093 | uint32_t temp; |
1094 | temp = I915_READ(TRANS_DDI_FUNC_CTL(cpu_transcoder)); | |
1095 | if (state == true) | |
1096 | temp |= TRANS_DDI_DP_VC_PAYLOAD_ALLOC; | |
1097 | else | |
1098 | temp &= ~TRANS_DDI_DP_VC_PAYLOAD_ALLOC; | |
1099 | I915_WRITE(TRANS_DDI_FUNC_CTL(cpu_transcoder), temp); | |
1100 | } | |
1101 | ||
8228c251 | 1102 | void intel_ddi_enable_transcoder_func(struct drm_crtc *crtc) |
8d9ddbcb PZ |
1103 | { |
1104 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
1105 | struct intel_encoder *intel_encoder = intel_ddi_get_crtc_encoder(crtc); | |
7739c33b | 1106 | struct drm_encoder *encoder = &intel_encoder->base; |
c7670b10 PZ |
1107 | struct drm_device *dev = crtc->dev; |
1108 | struct drm_i915_private *dev_priv = dev->dev_private; | |
8d9ddbcb | 1109 | enum pipe pipe = intel_crtc->pipe; |
6e3c9717 | 1110 | enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder; |
174edf1f | 1111 | enum port port = intel_ddi_get_encoder_port(intel_encoder); |
7739c33b | 1112 | int type = intel_encoder->type; |
8d9ddbcb PZ |
1113 | uint32_t temp; |
1114 | ||
ad80a810 PZ |
1115 | /* Enable TRANS_DDI_FUNC_CTL for the pipe to work in HDMI mode */ |
1116 | temp = TRANS_DDI_FUNC_ENABLE; | |
174edf1f | 1117 | temp |= TRANS_DDI_SELECT_PORT(port); |
dfcef252 | 1118 | |
6e3c9717 | 1119 | switch (intel_crtc->config->pipe_bpp) { |
dfcef252 | 1120 | case 18: |
ad80a810 | 1121 | temp |= TRANS_DDI_BPC_6; |
dfcef252 PZ |
1122 | break; |
1123 | case 24: | |
ad80a810 | 1124 | temp |= TRANS_DDI_BPC_8; |
dfcef252 PZ |
1125 | break; |
1126 | case 30: | |
ad80a810 | 1127 | temp |= TRANS_DDI_BPC_10; |
dfcef252 PZ |
1128 | break; |
1129 | case 36: | |
ad80a810 | 1130 | temp |= TRANS_DDI_BPC_12; |
dfcef252 PZ |
1131 | break; |
1132 | default: | |
4e53c2e0 | 1133 | BUG(); |
dfcef252 | 1134 | } |
72662e10 | 1135 | |
6e3c9717 | 1136 | if (intel_crtc->config->base.adjusted_mode.flags & DRM_MODE_FLAG_PVSYNC) |
ad80a810 | 1137 | temp |= TRANS_DDI_PVSYNC; |
6e3c9717 | 1138 | if (intel_crtc->config->base.adjusted_mode.flags & DRM_MODE_FLAG_PHSYNC) |
ad80a810 | 1139 | temp |= TRANS_DDI_PHSYNC; |
f63eb7c4 | 1140 | |
e6f0bfc4 PZ |
1141 | if (cpu_transcoder == TRANSCODER_EDP) { |
1142 | switch (pipe) { | |
1143 | case PIPE_A: | |
c7670b10 PZ |
1144 | /* On Haswell, can only use the always-on power well for |
1145 | * eDP when not using the panel fitter, and when not | |
1146 | * using motion blur mitigation (which we don't | |
1147 | * support). */ | |
fabf6e51 | 1148 | if (IS_HASWELL(dev) && |
6e3c9717 ACO |
1149 | (intel_crtc->config->pch_pfit.enabled || |
1150 | intel_crtc->config->pch_pfit.force_thru)) | |
d6dd9eb1 DV |
1151 | temp |= TRANS_DDI_EDP_INPUT_A_ONOFF; |
1152 | else | |
1153 | temp |= TRANS_DDI_EDP_INPUT_A_ON; | |
e6f0bfc4 PZ |
1154 | break; |
1155 | case PIPE_B: | |
1156 | temp |= TRANS_DDI_EDP_INPUT_B_ONOFF; | |
1157 | break; | |
1158 | case PIPE_C: | |
1159 | temp |= TRANS_DDI_EDP_INPUT_C_ONOFF; | |
1160 | break; | |
1161 | default: | |
1162 | BUG(); | |
1163 | break; | |
1164 | } | |
1165 | } | |
1166 | ||
7739c33b | 1167 | if (type == INTEL_OUTPUT_HDMI) { |
6e3c9717 | 1168 | if (intel_crtc->config->has_hdmi_sink) |
ad80a810 | 1169 | temp |= TRANS_DDI_MODE_SELECT_HDMI; |
8d9ddbcb | 1170 | else |
ad80a810 | 1171 | temp |= TRANS_DDI_MODE_SELECT_DVI; |
8d9ddbcb | 1172 | |
7739c33b | 1173 | } else if (type == INTEL_OUTPUT_ANALOG) { |
ad80a810 | 1174 | temp |= TRANS_DDI_MODE_SELECT_FDI; |
6e3c9717 | 1175 | temp |= (intel_crtc->config->fdi_lanes - 1) << 1; |
7739c33b PZ |
1176 | |
1177 | } else if (type == INTEL_OUTPUT_DISPLAYPORT || | |
1178 | type == INTEL_OUTPUT_EDP) { | |
1179 | struct intel_dp *intel_dp = enc_to_intel_dp(encoder); | |
1180 | ||
0e32b39c DA |
1181 | if (intel_dp->is_mst) { |
1182 | temp |= TRANS_DDI_MODE_SELECT_DP_MST; | |
1183 | } else | |
1184 | temp |= TRANS_DDI_MODE_SELECT_DP_SST; | |
1185 | ||
90a6b7b0 | 1186 | temp |= DDI_PORT_WIDTH(intel_crtc->config->lane_count); |
0e32b39c DA |
1187 | } else if (type == INTEL_OUTPUT_DP_MST) { |
1188 | struct intel_dp *intel_dp = &enc_to_mst(encoder)->primary->dp; | |
1189 | ||
1190 | if (intel_dp->is_mst) { | |
1191 | temp |= TRANS_DDI_MODE_SELECT_DP_MST; | |
1192 | } else | |
1193 | temp |= TRANS_DDI_MODE_SELECT_DP_SST; | |
7739c33b | 1194 | |
90a6b7b0 | 1195 | temp |= DDI_PORT_WIDTH(intel_crtc->config->lane_count); |
8d9ddbcb | 1196 | } else { |
84f44ce7 VS |
1197 | WARN(1, "Invalid encoder type %d for pipe %c\n", |
1198 | intel_encoder->type, pipe_name(pipe)); | |
8d9ddbcb PZ |
1199 | } |
1200 | ||
ad80a810 | 1201 | I915_WRITE(TRANS_DDI_FUNC_CTL(cpu_transcoder), temp); |
8d9ddbcb | 1202 | } |
72662e10 | 1203 | |
ad80a810 PZ |
1204 | void intel_ddi_disable_transcoder_func(struct drm_i915_private *dev_priv, |
1205 | enum transcoder cpu_transcoder) | |
8d9ddbcb | 1206 | { |
f0f59a00 | 1207 | i915_reg_t reg = TRANS_DDI_FUNC_CTL(cpu_transcoder); |
8d9ddbcb PZ |
1208 | uint32_t val = I915_READ(reg); |
1209 | ||
0e32b39c | 1210 | val &= ~(TRANS_DDI_FUNC_ENABLE | TRANS_DDI_PORT_MASK | TRANS_DDI_DP_VC_PAYLOAD_ALLOC); |
ad80a810 | 1211 | val |= TRANS_DDI_PORT_NONE; |
8d9ddbcb | 1212 | I915_WRITE(reg, val); |
72662e10 ED |
1213 | } |
1214 | ||
bcbc889b PZ |
1215 | bool intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector) |
1216 | { | |
1217 | struct drm_device *dev = intel_connector->base.dev; | |
1218 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1219 | struct intel_encoder *intel_encoder = intel_connector->encoder; | |
1220 | int type = intel_connector->base.connector_type; | |
1221 | enum port port = intel_ddi_get_encoder_port(intel_encoder); | |
1222 | enum pipe pipe = 0; | |
1223 | enum transcoder cpu_transcoder; | |
882244a3 | 1224 | enum intel_display_power_domain power_domain; |
bcbc889b | 1225 | uint32_t tmp; |
e27daab4 | 1226 | bool ret; |
bcbc889b | 1227 | |
882244a3 | 1228 | power_domain = intel_display_port_power_domain(intel_encoder); |
e27daab4 | 1229 | if (!intel_display_power_get_if_enabled(dev_priv, power_domain)) |
882244a3 PZ |
1230 | return false; |
1231 | ||
e27daab4 ID |
1232 | if (!intel_encoder->get_hw_state(intel_encoder, &pipe)) { |
1233 | ret = false; | |
1234 | goto out; | |
1235 | } | |
bcbc889b PZ |
1236 | |
1237 | if (port == PORT_A) | |
1238 | cpu_transcoder = TRANSCODER_EDP; | |
1239 | else | |
1a240d4d | 1240 | cpu_transcoder = (enum transcoder) pipe; |
bcbc889b PZ |
1241 | |
1242 | tmp = I915_READ(TRANS_DDI_FUNC_CTL(cpu_transcoder)); | |
1243 | ||
1244 | switch (tmp & TRANS_DDI_MODE_SELECT_MASK) { | |
1245 | case TRANS_DDI_MODE_SELECT_HDMI: | |
1246 | case TRANS_DDI_MODE_SELECT_DVI: | |
e27daab4 ID |
1247 | ret = type == DRM_MODE_CONNECTOR_HDMIA; |
1248 | break; | |
bcbc889b PZ |
1249 | |
1250 | case TRANS_DDI_MODE_SELECT_DP_SST: | |
e27daab4 ID |
1251 | ret = type == DRM_MODE_CONNECTOR_eDP || |
1252 | type == DRM_MODE_CONNECTOR_DisplayPort; | |
1253 | break; | |
1254 | ||
0e32b39c DA |
1255 | case TRANS_DDI_MODE_SELECT_DP_MST: |
1256 | /* if the transcoder is in MST state then | |
1257 | * connector isn't connected */ | |
e27daab4 ID |
1258 | ret = false; |
1259 | break; | |
bcbc889b PZ |
1260 | |
1261 | case TRANS_DDI_MODE_SELECT_FDI: | |
e27daab4 ID |
1262 | ret = type == DRM_MODE_CONNECTOR_VGA; |
1263 | break; | |
bcbc889b PZ |
1264 | |
1265 | default: | |
e27daab4 ID |
1266 | ret = false; |
1267 | break; | |
bcbc889b | 1268 | } |
e27daab4 ID |
1269 | |
1270 | out: | |
1271 | intel_display_power_put(dev_priv, power_domain); | |
1272 | ||
1273 | return ret; | |
bcbc889b PZ |
1274 | } |
1275 | ||
85234cdc DV |
1276 | bool intel_ddi_get_hw_state(struct intel_encoder *encoder, |
1277 | enum pipe *pipe) | |
1278 | { | |
1279 | struct drm_device *dev = encoder->base.dev; | |
1280 | struct drm_i915_private *dev_priv = dev->dev_private; | |
fe43d3f5 | 1281 | enum port port = intel_ddi_get_encoder_port(encoder); |
6d129bea | 1282 | enum intel_display_power_domain power_domain; |
85234cdc DV |
1283 | u32 tmp; |
1284 | int i; | |
e27daab4 | 1285 | bool ret; |
85234cdc | 1286 | |
6d129bea | 1287 | power_domain = intel_display_port_power_domain(encoder); |
e27daab4 | 1288 | if (!intel_display_power_get_if_enabled(dev_priv, power_domain)) |
6d129bea ID |
1289 | return false; |
1290 | ||
e27daab4 ID |
1291 | ret = false; |
1292 | ||
fe43d3f5 | 1293 | tmp = I915_READ(DDI_BUF_CTL(port)); |
85234cdc DV |
1294 | |
1295 | if (!(tmp & DDI_BUF_CTL_ENABLE)) | |
e27daab4 | 1296 | goto out; |
85234cdc | 1297 | |
ad80a810 PZ |
1298 | if (port == PORT_A) { |
1299 | tmp = I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP)); | |
85234cdc | 1300 | |
ad80a810 PZ |
1301 | switch (tmp & TRANS_DDI_EDP_INPUT_MASK) { |
1302 | case TRANS_DDI_EDP_INPUT_A_ON: | |
1303 | case TRANS_DDI_EDP_INPUT_A_ONOFF: | |
1304 | *pipe = PIPE_A; | |
1305 | break; | |
1306 | case TRANS_DDI_EDP_INPUT_B_ONOFF: | |
1307 | *pipe = PIPE_B; | |
1308 | break; | |
1309 | case TRANS_DDI_EDP_INPUT_C_ONOFF: | |
1310 | *pipe = PIPE_C; | |
1311 | break; | |
1312 | } | |
1313 | ||
e27daab4 | 1314 | ret = true; |
ad80a810 | 1315 | |
e27daab4 ID |
1316 | goto out; |
1317 | } | |
0e32b39c | 1318 | |
e27daab4 ID |
1319 | for (i = TRANSCODER_A; i <= TRANSCODER_C; i++) { |
1320 | tmp = I915_READ(TRANS_DDI_FUNC_CTL(i)); | |
1321 | ||
1322 | if ((tmp & TRANS_DDI_PORT_MASK) == TRANS_DDI_SELECT_PORT(port)) { | |
1323 | if ((tmp & TRANS_DDI_MODE_SELECT_MASK) == | |
1324 | TRANS_DDI_MODE_SELECT_DP_MST) | |
1325 | goto out; | |
1326 | ||
1327 | *pipe = i; | |
1328 | ret = true; | |
1329 | ||
1330 | goto out; | |
85234cdc DV |
1331 | } |
1332 | } | |
1333 | ||
84f44ce7 | 1334 | DRM_DEBUG_KMS("No pipe for ddi port %c found\n", port_name(port)); |
85234cdc | 1335 | |
e27daab4 ID |
1336 | out: |
1337 | intel_display_power_put(dev_priv, power_domain); | |
1338 | ||
1339 | return ret; | |
85234cdc DV |
1340 | } |
1341 | ||
fc914639 PZ |
1342 | void intel_ddi_enable_pipe_clock(struct intel_crtc *intel_crtc) |
1343 | { | |
1344 | struct drm_crtc *crtc = &intel_crtc->base; | |
7d4aefd0 SS |
1345 | struct drm_device *dev = crtc->dev; |
1346 | struct drm_i915_private *dev_priv = dev->dev_private; | |
fc914639 PZ |
1347 | struct intel_encoder *intel_encoder = intel_ddi_get_crtc_encoder(crtc); |
1348 | enum port port = intel_ddi_get_encoder_port(intel_encoder); | |
6e3c9717 | 1349 | enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder; |
fc914639 | 1350 | |
bb523fc0 PZ |
1351 | if (cpu_transcoder != TRANSCODER_EDP) |
1352 | I915_WRITE(TRANS_CLK_SEL(cpu_transcoder), | |
1353 | TRANS_CLK_SEL_PORT(port)); | |
fc914639 PZ |
1354 | } |
1355 | ||
1356 | void intel_ddi_disable_pipe_clock(struct intel_crtc *intel_crtc) | |
1357 | { | |
1358 | struct drm_i915_private *dev_priv = intel_crtc->base.dev->dev_private; | |
6e3c9717 | 1359 | enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder; |
fc914639 | 1360 | |
bb523fc0 PZ |
1361 | if (cpu_transcoder != TRANSCODER_EDP) |
1362 | I915_WRITE(TRANS_CLK_SEL(cpu_transcoder), | |
1363 | TRANS_CLK_SEL_DISABLED); | |
fc914639 PZ |
1364 | } |
1365 | ||
78ab0bae VS |
1366 | static void skl_ddi_set_iboost(struct drm_i915_private *dev_priv, |
1367 | u32 level, enum port port, int type) | |
f8896f5d | 1368 | { |
f8896f5d DW |
1369 | const struct ddi_buf_trans *ddi_translations; |
1370 | uint8_t iboost; | |
75067dde | 1371 | uint8_t dp_iboost, hdmi_iboost; |
f8896f5d DW |
1372 | int n_entries; |
1373 | u32 reg; | |
1374 | ||
75067dde AK |
1375 | /* VBT may override standard boost values */ |
1376 | dp_iboost = dev_priv->vbt.ddi_port_info[port].dp_boost_level; | |
1377 | hdmi_iboost = dev_priv->vbt.ddi_port_info[port].hdmi_boost_level; | |
1378 | ||
f8896f5d | 1379 | if (type == INTEL_OUTPUT_DISPLAYPORT) { |
75067dde AK |
1380 | if (dp_iboost) { |
1381 | iboost = dp_iboost; | |
1382 | } else { | |
78ab0bae | 1383 | ddi_translations = skl_get_buf_trans_dp(dev_priv, &n_entries); |
e4d4c05b | 1384 | iboost = ddi_translations[level].i_boost; |
75067dde | 1385 | } |
f8896f5d | 1386 | } else if (type == INTEL_OUTPUT_EDP) { |
75067dde AK |
1387 | if (dp_iboost) { |
1388 | iboost = dp_iboost; | |
1389 | } else { | |
78ab0bae | 1390 | ddi_translations = skl_get_buf_trans_edp(dev_priv, &n_entries); |
10afa0b6 VS |
1391 | |
1392 | if (WARN_ON(port != PORT_A && | |
1393 | port != PORT_E && n_entries > 9)) | |
1394 | n_entries = 9; | |
1395 | ||
e4d4c05b | 1396 | iboost = ddi_translations[level].i_boost; |
75067dde | 1397 | } |
f8896f5d | 1398 | } else if (type == INTEL_OUTPUT_HDMI) { |
75067dde AK |
1399 | if (hdmi_iboost) { |
1400 | iboost = hdmi_iboost; | |
1401 | } else { | |
78ab0bae | 1402 | ddi_translations = skl_get_buf_trans_hdmi(dev_priv, &n_entries); |
e4d4c05b | 1403 | iboost = ddi_translations[level].i_boost; |
75067dde | 1404 | } |
f8896f5d DW |
1405 | } else { |
1406 | return; | |
1407 | } | |
1408 | ||
1409 | /* Make sure that the requested I_boost is valid */ | |
1410 | if (iboost && iboost != 0x1 && iboost != 0x3 && iboost != 0x7) { | |
1411 | DRM_ERROR("Invalid I_boost value %u\n", iboost); | |
1412 | return; | |
1413 | } | |
1414 | ||
1415 | reg = I915_READ(DISPIO_CR_TX_BMU_CR0); | |
1416 | reg &= ~BALANCE_LEG_MASK(port); | |
1417 | reg &= ~(1 << (BALANCE_LEG_DISABLE_SHIFT + port)); | |
1418 | ||
1419 | if (iboost) | |
1420 | reg |= iboost << BALANCE_LEG_SHIFT(port); | |
1421 | else | |
1422 | reg |= 1 << (BALANCE_LEG_DISABLE_SHIFT + port); | |
1423 | ||
1424 | I915_WRITE(DISPIO_CR_TX_BMU_CR0, reg); | |
1425 | } | |
1426 | ||
78ab0bae VS |
1427 | static void bxt_ddi_vswing_sequence(struct drm_i915_private *dev_priv, |
1428 | u32 level, enum port port, int type) | |
96fb9f9b | 1429 | { |
96fb9f9b VK |
1430 | const struct bxt_ddi_buf_trans *ddi_translations; |
1431 | u32 n_entries, i; | |
1432 | uint32_t val; | |
1433 | ||
06411f08 | 1434 | if (type == INTEL_OUTPUT_EDP && dev_priv->vbt.edp.low_vswing) { |
d9d7000d SJ |
1435 | n_entries = ARRAY_SIZE(bxt_ddi_translations_edp); |
1436 | ddi_translations = bxt_ddi_translations_edp; | |
1437 | } else if (type == INTEL_OUTPUT_DISPLAYPORT | |
1438 | || type == INTEL_OUTPUT_EDP) { | |
96fb9f9b VK |
1439 | n_entries = ARRAY_SIZE(bxt_ddi_translations_dp); |
1440 | ddi_translations = bxt_ddi_translations_dp; | |
1441 | } else if (type == INTEL_OUTPUT_HDMI) { | |
1442 | n_entries = ARRAY_SIZE(bxt_ddi_translations_hdmi); | |
1443 | ddi_translations = bxt_ddi_translations_hdmi; | |
1444 | } else { | |
1445 | DRM_DEBUG_KMS("Vswing programming not done for encoder %d\n", | |
1446 | type); | |
1447 | return; | |
1448 | } | |
1449 | ||
1450 | /* Check if default value has to be used */ | |
1451 | if (level >= n_entries || | |
1452 | (type == INTEL_OUTPUT_HDMI && level == HDMI_LEVEL_SHIFT_UNKNOWN)) { | |
1453 | for (i = 0; i < n_entries; i++) { | |
1454 | if (ddi_translations[i].default_index) { | |
1455 | level = i; | |
1456 | break; | |
1457 | } | |
1458 | } | |
1459 | } | |
1460 | ||
1461 | /* | |
1462 | * While we write to the group register to program all lanes at once we | |
1463 | * can read only lane registers and we pick lanes 0/1 for that. | |
1464 | */ | |
1465 | val = I915_READ(BXT_PORT_PCS_DW10_LN01(port)); | |
1466 | val &= ~(TX2_SWING_CALC_INIT | TX1_SWING_CALC_INIT); | |
1467 | I915_WRITE(BXT_PORT_PCS_DW10_GRP(port), val); | |
1468 | ||
1469 | val = I915_READ(BXT_PORT_TX_DW2_LN0(port)); | |
1470 | val &= ~(MARGIN_000 | UNIQ_TRANS_SCALE); | |
1471 | val |= ddi_translations[level].margin << MARGIN_000_SHIFT | | |
1472 | ddi_translations[level].scale << UNIQ_TRANS_SCALE_SHIFT; | |
1473 | I915_WRITE(BXT_PORT_TX_DW2_GRP(port), val); | |
1474 | ||
1475 | val = I915_READ(BXT_PORT_TX_DW3_LN0(port)); | |
9c58a049 | 1476 | val &= ~SCALE_DCOMP_METHOD; |
96fb9f9b | 1477 | if (ddi_translations[level].enable) |
9c58a049 SJ |
1478 | val |= SCALE_DCOMP_METHOD; |
1479 | ||
1480 | if ((val & UNIQUE_TRANGE_EN_METHOD) && !(val & SCALE_DCOMP_METHOD)) | |
1481 | DRM_ERROR("Disabled scaling while ouniqetrangenmethod was set"); | |
1482 | ||
96fb9f9b VK |
1483 | I915_WRITE(BXT_PORT_TX_DW3_GRP(port), val); |
1484 | ||
1485 | val = I915_READ(BXT_PORT_TX_DW4_LN0(port)); | |
1486 | val &= ~DE_EMPHASIS; | |
1487 | val |= ddi_translations[level].deemphasis << DEEMPH_SHIFT; | |
1488 | I915_WRITE(BXT_PORT_TX_DW4_GRP(port), val); | |
1489 | ||
1490 | val = I915_READ(BXT_PORT_PCS_DW10_LN01(port)); | |
1491 | val |= TX2_SWING_CALC_INIT | TX1_SWING_CALC_INIT; | |
1492 | I915_WRITE(BXT_PORT_PCS_DW10_GRP(port), val); | |
1493 | } | |
1494 | ||
f8896f5d DW |
1495 | static uint32_t translate_signal_level(int signal_levels) |
1496 | { | |
1497 | uint32_t level; | |
1498 | ||
1499 | switch (signal_levels) { | |
1500 | default: | |
1501 | DRM_DEBUG_KMS("Unsupported voltage swing/pre-emphasis level: 0x%x\n", | |
1502 | signal_levels); | |
1503 | case DP_TRAIN_VOLTAGE_SWING_LEVEL_0 | DP_TRAIN_PRE_EMPH_LEVEL_0: | |
1504 | level = 0; | |
1505 | break; | |
1506 | case DP_TRAIN_VOLTAGE_SWING_LEVEL_0 | DP_TRAIN_PRE_EMPH_LEVEL_1: | |
1507 | level = 1; | |
1508 | break; | |
1509 | case DP_TRAIN_VOLTAGE_SWING_LEVEL_0 | DP_TRAIN_PRE_EMPH_LEVEL_2: | |
1510 | level = 2; | |
1511 | break; | |
1512 | case DP_TRAIN_VOLTAGE_SWING_LEVEL_0 | DP_TRAIN_PRE_EMPH_LEVEL_3: | |
1513 | level = 3; | |
1514 | break; | |
1515 | ||
1516 | case DP_TRAIN_VOLTAGE_SWING_LEVEL_1 | DP_TRAIN_PRE_EMPH_LEVEL_0: | |
1517 | level = 4; | |
1518 | break; | |
1519 | case DP_TRAIN_VOLTAGE_SWING_LEVEL_1 | DP_TRAIN_PRE_EMPH_LEVEL_1: | |
1520 | level = 5; | |
1521 | break; | |
1522 | case DP_TRAIN_VOLTAGE_SWING_LEVEL_1 | DP_TRAIN_PRE_EMPH_LEVEL_2: | |
1523 | level = 6; | |
1524 | break; | |
1525 | ||
1526 | case DP_TRAIN_VOLTAGE_SWING_LEVEL_2 | DP_TRAIN_PRE_EMPH_LEVEL_0: | |
1527 | level = 7; | |
1528 | break; | |
1529 | case DP_TRAIN_VOLTAGE_SWING_LEVEL_2 | DP_TRAIN_PRE_EMPH_LEVEL_1: | |
1530 | level = 8; | |
1531 | break; | |
1532 | ||
1533 | case DP_TRAIN_VOLTAGE_SWING_LEVEL_3 | DP_TRAIN_PRE_EMPH_LEVEL_0: | |
1534 | level = 9; | |
1535 | break; | |
1536 | } | |
1537 | ||
1538 | return level; | |
1539 | } | |
1540 | ||
1541 | uint32_t ddi_signal_levels(struct intel_dp *intel_dp) | |
1542 | { | |
1543 | struct intel_digital_port *dport = dp_to_dig_port(intel_dp); | |
78ab0bae | 1544 | struct drm_i915_private *dev_priv = to_i915(dport->base.base.dev); |
f8896f5d DW |
1545 | struct intel_encoder *encoder = &dport->base; |
1546 | uint8_t train_set = intel_dp->train_set[0]; | |
1547 | int signal_levels = train_set & (DP_TRAIN_VOLTAGE_SWING_MASK | | |
1548 | DP_TRAIN_PRE_EMPHASIS_MASK); | |
1549 | enum port port = dport->port; | |
1550 | uint32_t level; | |
1551 | ||
1552 | level = translate_signal_level(signal_levels); | |
1553 | ||
78ab0bae VS |
1554 | if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) |
1555 | skl_ddi_set_iboost(dev_priv, level, port, encoder->type); | |
1556 | else if (IS_BROXTON(dev_priv)) | |
1557 | bxt_ddi_vswing_sequence(dev_priv, level, port, encoder->type); | |
f8896f5d DW |
1558 | |
1559 | return DDI_BUF_TRANS_SELECT(level); | |
1560 | } | |
1561 | ||
e404ba8d VS |
1562 | void intel_ddi_clk_select(struct intel_encoder *encoder, |
1563 | const struct intel_crtc_state *pipe_config) | |
6441ab5f | 1564 | { |
e404ba8d VS |
1565 | struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); |
1566 | enum port port = intel_ddi_get_encoder_port(encoder); | |
6441ab5f | 1567 | |
e404ba8d VS |
1568 | if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) { |
1569 | uint32_t dpll = pipe_config->ddi_pll_sel; | |
efa80add S |
1570 | uint32_t val; |
1571 | ||
5416d871 | 1572 | /* DDI -> PLL mapping */ |
efa80add S |
1573 | val = I915_READ(DPLL_CTRL2); |
1574 | ||
1575 | val &= ~(DPLL_CTRL2_DDI_CLK_OFF(port) | | |
1576 | DPLL_CTRL2_DDI_CLK_SEL_MASK(port)); | |
1577 | val |= (DPLL_CTRL2_DDI_CLK_SEL(dpll, port) | | |
1578 | DPLL_CTRL2_DDI_SEL_OVERRIDE(port)); | |
1579 | ||
1580 | I915_WRITE(DPLL_CTRL2, val); | |
5416d871 | 1581 | |
e404ba8d VS |
1582 | } else if (INTEL_INFO(dev_priv)->gen < 9) { |
1583 | WARN_ON(pipe_config->ddi_pll_sel == PORT_CLK_SEL_NONE); | |
1584 | I915_WRITE(PORT_CLK_SEL(port), pipe_config->ddi_pll_sel); | |
efa80add | 1585 | } |
e404ba8d VS |
1586 | } |
1587 | ||
1588 | static void intel_ddi_pre_enable(struct intel_encoder *intel_encoder) | |
1589 | { | |
1590 | struct drm_encoder *encoder = &intel_encoder->base; | |
6a7e4f99 | 1591 | struct drm_i915_private *dev_priv = to_i915(encoder->dev); |
e404ba8d VS |
1592 | struct intel_crtc *crtc = to_intel_crtc(encoder->crtc); |
1593 | enum port port = intel_ddi_get_encoder_port(intel_encoder); | |
1594 | int type = intel_encoder->type; | |
6a7e4f99 VS |
1595 | |
1596 | intel_prepare_ddi_buffer(intel_encoder); | |
e404ba8d VS |
1597 | |
1598 | if (type == INTEL_OUTPUT_EDP) { | |
1599 | struct intel_dp *intel_dp = enc_to_intel_dp(encoder); | |
1600 | intel_edp_panel_on(intel_dp); | |
1601 | } | |
1602 | ||
1603 | intel_ddi_clk_select(intel_encoder, crtc->config); | |
c19b0669 | 1604 | |
82a4d9c0 | 1605 | if (type == INTEL_OUTPUT_DISPLAYPORT || type == INTEL_OUTPUT_EDP) { |
c19b0669 | 1606 | struct intel_dp *intel_dp = enc_to_intel_dp(encoder); |
30cf6db8 | 1607 | |
901c2daf VS |
1608 | intel_dp_set_link_params(intel_dp, crtc->config); |
1609 | ||
44905a27 | 1610 | intel_ddi_init_dp_buf_reg(intel_encoder); |
c19b0669 PZ |
1611 | |
1612 | intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_ON); | |
1613 | intel_dp_start_link_train(intel_dp); | |
6a7e4f99 | 1614 | if (port != PORT_A || INTEL_INFO(dev_priv)->gen >= 9) |
3ab9c637 | 1615 | intel_dp_stop_link_train(intel_dp); |
30cf6db8 DV |
1616 | } else if (type == INTEL_OUTPUT_HDMI) { |
1617 | struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder); | |
1618 | ||
1619 | intel_hdmi->set_infoframes(encoder, | |
6e3c9717 ACO |
1620 | crtc->config->has_hdmi_sink, |
1621 | &crtc->config->base.adjusted_mode); | |
c19b0669 | 1622 | } |
6441ab5f PZ |
1623 | } |
1624 | ||
00c09d70 | 1625 | static void intel_ddi_post_disable(struct intel_encoder *intel_encoder) |
6441ab5f PZ |
1626 | { |
1627 | struct drm_encoder *encoder = &intel_encoder->base; | |
efa80add S |
1628 | struct drm_device *dev = encoder->dev; |
1629 | struct drm_i915_private *dev_priv = dev->dev_private; | |
6441ab5f | 1630 | enum port port = intel_ddi_get_encoder_port(intel_encoder); |
82a4d9c0 | 1631 | int type = intel_encoder->type; |
2886e93f | 1632 | uint32_t val; |
a836bdf9 | 1633 | bool wait = false; |
2886e93f PZ |
1634 | |
1635 | val = I915_READ(DDI_BUF_CTL(port)); | |
1636 | if (val & DDI_BUF_CTL_ENABLE) { | |
1637 | val &= ~DDI_BUF_CTL_ENABLE; | |
1638 | I915_WRITE(DDI_BUF_CTL(port), val); | |
a836bdf9 | 1639 | wait = true; |
2886e93f | 1640 | } |
6441ab5f | 1641 | |
a836bdf9 PZ |
1642 | val = I915_READ(DP_TP_CTL(port)); |
1643 | val &= ~(DP_TP_CTL_ENABLE | DP_TP_CTL_LINK_TRAIN_MASK); | |
1644 | val |= DP_TP_CTL_LINK_TRAIN_PAT1; | |
1645 | I915_WRITE(DP_TP_CTL(port), val); | |
1646 | ||
1647 | if (wait) | |
1648 | intel_wait_ddi_buf_idle(dev_priv, port); | |
1649 | ||
76bb80ed | 1650 | if (type == INTEL_OUTPUT_DISPLAYPORT || type == INTEL_OUTPUT_EDP) { |
82a4d9c0 | 1651 | struct intel_dp *intel_dp = enc_to_intel_dp(encoder); |
76bb80ed | 1652 | intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_OFF); |
24f3e092 | 1653 | intel_edp_panel_vdd_on(intel_dp); |
4be73780 | 1654 | intel_edp_panel_off(intel_dp); |
82a4d9c0 PZ |
1655 | } |
1656 | ||
ef11bdb3 | 1657 | if (IS_SKYLAKE(dev) || IS_KABYLAKE(dev)) |
efa80add S |
1658 | I915_WRITE(DPLL_CTRL2, (I915_READ(DPLL_CTRL2) | |
1659 | DPLL_CTRL2_DDI_CLK_OFF(port))); | |
1ab23380 | 1660 | else if (INTEL_INFO(dev)->gen < 9) |
efa80add | 1661 | I915_WRITE(PORT_CLK_SEL(port), PORT_CLK_SEL_NONE); |
6441ab5f PZ |
1662 | } |
1663 | ||
00c09d70 | 1664 | static void intel_enable_ddi(struct intel_encoder *intel_encoder) |
72662e10 | 1665 | { |
6547fef8 | 1666 | struct drm_encoder *encoder = &intel_encoder->base; |
7b9f35a6 WX |
1667 | struct drm_crtc *crtc = encoder->crtc; |
1668 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
6547fef8 | 1669 | struct drm_device *dev = encoder->dev; |
72662e10 | 1670 | struct drm_i915_private *dev_priv = dev->dev_private; |
6547fef8 PZ |
1671 | enum port port = intel_ddi_get_encoder_port(intel_encoder); |
1672 | int type = intel_encoder->type; | |
72662e10 | 1673 | |
6547fef8 | 1674 | if (type == INTEL_OUTPUT_HDMI) { |
876a8cdf DL |
1675 | struct intel_digital_port *intel_dig_port = |
1676 | enc_to_dig_port(encoder); | |
1677 | ||
6547fef8 PZ |
1678 | /* In HDMI/DVI mode, the port width, and swing/emphasis values |
1679 | * are ignored so nothing special needs to be done besides | |
1680 | * enabling the port. | |
1681 | */ | |
876a8cdf | 1682 | I915_WRITE(DDI_BUF_CTL(port), |
bcf53de4 SM |
1683 | intel_dig_port->saved_port_bits | |
1684 | DDI_BUF_CTL_ENABLE); | |
d6c50ff8 PZ |
1685 | } else if (type == INTEL_OUTPUT_EDP) { |
1686 | struct intel_dp *intel_dp = enc_to_intel_dp(encoder); | |
1687 | ||
23f08d83 | 1688 | if (port == PORT_A && INTEL_INFO(dev)->gen < 9) |
3ab9c637 ID |
1689 | intel_dp_stop_link_train(intel_dp); |
1690 | ||
4be73780 | 1691 | intel_edp_backlight_on(intel_dp); |
0bc12bcb | 1692 | intel_psr_enable(intel_dp); |
c395578e | 1693 | intel_edp_drrs_enable(intel_dp); |
6547fef8 | 1694 | } |
7b9f35a6 | 1695 | |
6e3c9717 | 1696 | if (intel_crtc->config->has_audio) { |
d45a0bf5 | 1697 | intel_display_power_get(dev_priv, POWER_DOMAIN_AUDIO); |
69bfe1a9 | 1698 | intel_audio_codec_enable(intel_encoder); |
7b9f35a6 | 1699 | } |
5ab432ef DV |
1700 | } |
1701 | ||
00c09d70 | 1702 | static void intel_disable_ddi(struct intel_encoder *intel_encoder) |
5ab432ef | 1703 | { |
d6c50ff8 | 1704 | struct drm_encoder *encoder = &intel_encoder->base; |
7b9f35a6 WX |
1705 | struct drm_crtc *crtc = encoder->crtc; |
1706 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
d6c50ff8 | 1707 | int type = intel_encoder->type; |
7b9f35a6 WX |
1708 | struct drm_device *dev = encoder->dev; |
1709 | struct drm_i915_private *dev_priv = dev->dev_private; | |
d6c50ff8 | 1710 | |
6e3c9717 | 1711 | if (intel_crtc->config->has_audio) { |
69bfe1a9 | 1712 | intel_audio_codec_disable(intel_encoder); |
d45a0bf5 PZ |
1713 | intel_display_power_put(dev_priv, POWER_DOMAIN_AUDIO); |
1714 | } | |
2831d842 | 1715 | |
d6c50ff8 PZ |
1716 | if (type == INTEL_OUTPUT_EDP) { |
1717 | struct intel_dp *intel_dp = enc_to_intel_dp(encoder); | |
1718 | ||
c395578e | 1719 | intel_edp_drrs_disable(intel_dp); |
0bc12bcb | 1720 | intel_psr_disable(intel_dp); |
4be73780 | 1721 | intel_edp_backlight_off(intel_dp); |
d6c50ff8 | 1722 | } |
72662e10 | 1723 | } |
79f689aa | 1724 | |
5c6706e5 VK |
1725 | static void broxton_phy_init(struct drm_i915_private *dev_priv, |
1726 | enum dpio_phy phy) | |
1727 | { | |
1728 | enum port port; | |
11b538cd | 1729 | u32 ports, val; |
5c6706e5 VK |
1730 | |
1731 | val = I915_READ(BXT_P_CR_GT_DISP_PWRON); | |
1732 | val |= GT_DISPLAY_POWER_ON(phy); | |
1733 | I915_WRITE(BXT_P_CR_GT_DISP_PWRON, val); | |
1734 | ||
b61e7996 VK |
1735 | /* |
1736 | * The PHY registers start out inaccessible and respond to reads with | |
1737 | * all 1s. Eventually they become accessible as they power up, then | |
1738 | * the reserved bit will give the default 0. Poll on the reserved bit | |
1739 | * becoming 0 to find when the PHY is accessible. | |
1740 | * HW team confirmed that the time to reach phypowergood status is | |
1741 | * anywhere between 50 us and 100us. | |
1742 | */ | |
1743 | if (wait_for_us(((I915_READ(BXT_PORT_CL1CM_DW0(phy)) & | |
1744 | (PHY_RESERVED | PHY_POWER_GOOD)) == PHY_POWER_GOOD), 100)) { | |
5c6706e5 | 1745 | DRM_ERROR("timeout during PHY%d power on\n", phy); |
b61e7996 | 1746 | } |
5c6706e5 | 1747 | |
11b538cd JN |
1748 | if (phy == DPIO_PHY0) |
1749 | ports = BIT(PORT_B) | BIT(PORT_C); | |
1750 | else | |
1751 | ports = BIT(PORT_A); | |
1752 | ||
1753 | for_each_port_masked(port, ports) { | |
5c6706e5 VK |
1754 | int lane; |
1755 | ||
1756 | for (lane = 0; lane < 4; lane++) { | |
1757 | val = I915_READ(BXT_PORT_TX_DW14_LN(port, lane)); | |
1758 | /* | |
1759 | * Note that on CHV this flag is called UPAR, but has | |
1760 | * the same function. | |
1761 | */ | |
1762 | val &= ~LATENCY_OPTIM; | |
1763 | if (lane != 1) | |
1764 | val |= LATENCY_OPTIM; | |
1765 | ||
1766 | I915_WRITE(BXT_PORT_TX_DW14_LN(port, lane), val); | |
1767 | } | |
1768 | } | |
1769 | ||
1770 | /* Program PLL Rcomp code offset */ | |
1771 | val = I915_READ(BXT_PORT_CL1CM_DW9(phy)); | |
1772 | val &= ~IREF0RC_OFFSET_MASK; | |
1773 | val |= 0xE4 << IREF0RC_OFFSET_SHIFT; | |
1774 | I915_WRITE(BXT_PORT_CL1CM_DW9(phy), val); | |
1775 | ||
1776 | val = I915_READ(BXT_PORT_CL1CM_DW10(phy)); | |
1777 | val &= ~IREF1RC_OFFSET_MASK; | |
1778 | val |= 0xE4 << IREF1RC_OFFSET_SHIFT; | |
1779 | I915_WRITE(BXT_PORT_CL1CM_DW10(phy), val); | |
1780 | ||
1781 | /* Program power gating */ | |
1782 | val = I915_READ(BXT_PORT_CL1CM_DW28(phy)); | |
1783 | val |= OCL1_POWER_DOWN_EN | DW28_OLDO_DYN_PWR_DOWN_EN | | |
1784 | SUS_CLK_CONFIG; | |
1785 | I915_WRITE(BXT_PORT_CL1CM_DW28(phy), val); | |
1786 | ||
1787 | if (phy == DPIO_PHY0) { | |
1788 | val = I915_READ(BXT_PORT_CL2CM_DW6_BC); | |
1789 | val |= DW6_OLDO_DYN_PWR_DOWN_EN; | |
1790 | I915_WRITE(BXT_PORT_CL2CM_DW6_BC, val); | |
1791 | } | |
1792 | ||
1793 | val = I915_READ(BXT_PORT_CL1CM_DW30(phy)); | |
1794 | val &= ~OCL2_LDOFUSE_PWR_DIS; | |
1795 | /* | |
1796 | * On PHY1 disable power on the second channel, since no port is | |
1797 | * connected there. On PHY0 both channels have a port, so leave it | |
1798 | * enabled. | |
1799 | * TODO: port C is only connected on BXT-P, so on BXT0/1 we should | |
1800 | * power down the second channel on PHY0 as well. | |
28ca6931 ID |
1801 | * |
1802 | * FIXME: Clarify programming of the following, the register is | |
1803 | * read-only with bit 6 fixed at 0 at least in stepping A. | |
5c6706e5 VK |
1804 | */ |
1805 | if (phy == DPIO_PHY1) | |
1806 | val |= OCL2_LDOFUSE_PWR_DIS; | |
1807 | I915_WRITE(BXT_PORT_CL1CM_DW30(phy), val); | |
1808 | ||
1809 | if (phy == DPIO_PHY0) { | |
1810 | uint32_t grc_code; | |
1811 | /* | |
1812 | * PHY0 isn't connected to an RCOMP resistor so copy over | |
1813 | * the corresponding calibrated value from PHY1, and disable | |
1814 | * the automatic calibration on PHY0. | |
1815 | */ | |
1816 | if (wait_for(I915_READ(BXT_PORT_REF_DW3(DPIO_PHY1)) & GRC_DONE, | |
1817 | 10)) | |
1818 | DRM_ERROR("timeout waiting for PHY1 GRC\n"); | |
1819 | ||
1820 | val = I915_READ(BXT_PORT_REF_DW6(DPIO_PHY1)); | |
1821 | val = (val & GRC_CODE_MASK) >> GRC_CODE_SHIFT; | |
1822 | grc_code = val << GRC_CODE_FAST_SHIFT | | |
1823 | val << GRC_CODE_SLOW_SHIFT | | |
1824 | val; | |
1825 | I915_WRITE(BXT_PORT_REF_DW6(DPIO_PHY0), grc_code); | |
1826 | ||
1827 | val = I915_READ(BXT_PORT_REF_DW8(DPIO_PHY0)); | |
1828 | val |= GRC_DIS | GRC_RDY_OVRD; | |
1829 | I915_WRITE(BXT_PORT_REF_DW8(DPIO_PHY0), val); | |
1830 | } | |
1831 | ||
1832 | val = I915_READ(BXT_PHY_CTL_FAMILY(phy)); | |
1833 | val |= COMMON_RESET_DIS; | |
1834 | I915_WRITE(BXT_PHY_CTL_FAMILY(phy), val); | |
1835 | } | |
1836 | ||
c6c4696f | 1837 | void broxton_ddi_phy_init(struct drm_i915_private *dev_priv) |
5c6706e5 VK |
1838 | { |
1839 | /* Enable PHY1 first since it provides Rcomp for PHY0 */ | |
c6c4696f ID |
1840 | broxton_phy_init(dev_priv, DPIO_PHY1); |
1841 | broxton_phy_init(dev_priv, DPIO_PHY0); | |
5c6706e5 VK |
1842 | } |
1843 | ||
1844 | static void broxton_phy_uninit(struct drm_i915_private *dev_priv, | |
1845 | enum dpio_phy phy) | |
1846 | { | |
1847 | uint32_t val; | |
1848 | ||
1849 | val = I915_READ(BXT_PHY_CTL_FAMILY(phy)); | |
1850 | val &= ~COMMON_RESET_DIS; | |
1851 | I915_WRITE(BXT_PHY_CTL_FAMILY(phy), val); | |
1852 | } | |
1853 | ||
c6c4696f | 1854 | void broxton_ddi_phy_uninit(struct drm_i915_private *dev_priv) |
5c6706e5 | 1855 | { |
5c6706e5 VK |
1856 | broxton_phy_uninit(dev_priv, DPIO_PHY1); |
1857 | broxton_phy_uninit(dev_priv, DPIO_PHY0); | |
1858 | ||
1859 | /* FIXME: do this in broxton_phy_uninit per phy */ | |
1860 | I915_WRITE(BXT_P_CR_GT_DISP_PWRON, 0); | |
1861 | } | |
1862 | ||
ad64217b | 1863 | void intel_ddi_prepare_link_retrain(struct intel_dp *intel_dp) |
c19b0669 | 1864 | { |
ad64217b ACO |
1865 | struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp); |
1866 | struct drm_i915_private *dev_priv = | |
1867 | to_i915(intel_dig_port->base.base.dev); | |
174edf1f | 1868 | enum port port = intel_dig_port->port; |
c19b0669 | 1869 | uint32_t val; |
f3e227df | 1870 | bool wait = false; |
c19b0669 PZ |
1871 | |
1872 | if (I915_READ(DP_TP_CTL(port)) & DP_TP_CTL_ENABLE) { | |
1873 | val = I915_READ(DDI_BUF_CTL(port)); | |
1874 | if (val & DDI_BUF_CTL_ENABLE) { | |
1875 | val &= ~DDI_BUF_CTL_ENABLE; | |
1876 | I915_WRITE(DDI_BUF_CTL(port), val); | |
1877 | wait = true; | |
1878 | } | |
1879 | ||
1880 | val = I915_READ(DP_TP_CTL(port)); | |
1881 | val &= ~(DP_TP_CTL_ENABLE | DP_TP_CTL_LINK_TRAIN_MASK); | |
1882 | val |= DP_TP_CTL_LINK_TRAIN_PAT1; | |
1883 | I915_WRITE(DP_TP_CTL(port), val); | |
1884 | POSTING_READ(DP_TP_CTL(port)); | |
1885 | ||
1886 | if (wait) | |
1887 | intel_wait_ddi_buf_idle(dev_priv, port); | |
1888 | } | |
1889 | ||
0e32b39c | 1890 | val = DP_TP_CTL_ENABLE | |
c19b0669 | 1891 | DP_TP_CTL_LINK_TRAIN_PAT1 | DP_TP_CTL_SCRAMBLE_DISABLE; |
0e32b39c DA |
1892 | if (intel_dp->is_mst) |
1893 | val |= DP_TP_CTL_MODE_MST; | |
1894 | else { | |
1895 | val |= DP_TP_CTL_MODE_SST; | |
1896 | if (drm_dp_enhanced_frame_cap(intel_dp->dpcd)) | |
1897 | val |= DP_TP_CTL_ENHANCED_FRAME_ENABLE; | |
1898 | } | |
c19b0669 PZ |
1899 | I915_WRITE(DP_TP_CTL(port), val); |
1900 | POSTING_READ(DP_TP_CTL(port)); | |
1901 | ||
1902 | intel_dp->DP |= DDI_BUF_CTL_ENABLE; | |
1903 | I915_WRITE(DDI_BUF_CTL(port), intel_dp->DP); | |
1904 | POSTING_READ(DDI_BUF_CTL(port)); | |
1905 | ||
1906 | udelay(600); | |
1907 | } | |
00c09d70 | 1908 | |
1ad960f2 PZ |
1909 | void intel_ddi_fdi_disable(struct drm_crtc *crtc) |
1910 | { | |
1911 | struct drm_i915_private *dev_priv = crtc->dev->dev_private; | |
1912 | struct intel_encoder *intel_encoder = intel_ddi_get_crtc_encoder(crtc); | |
1913 | uint32_t val; | |
1914 | ||
5b421c57 VS |
1915 | /* |
1916 | * Bspec lists this as both step 13 (before DDI_BUF_CTL disable) | |
1917 | * and step 18 (after clearing PORT_CLK_SEL). Based on a BUN, | |
1918 | * step 13 is the correct place for it. Step 18 is where it was | |
1919 | * originally before the BUN. | |
1920 | */ | |
eede3b53 | 1921 | val = I915_READ(FDI_RX_CTL(PIPE_A)); |
1ad960f2 | 1922 | val &= ~FDI_RX_ENABLE; |
eede3b53 | 1923 | I915_WRITE(FDI_RX_CTL(PIPE_A), val); |
1ad960f2 | 1924 | |
5b421c57 VS |
1925 | intel_ddi_post_disable(intel_encoder); |
1926 | ||
eede3b53 | 1927 | val = I915_READ(FDI_RX_MISC(PIPE_A)); |
1ad960f2 PZ |
1928 | val &= ~(FDI_RX_PWRDN_LANE1_MASK | FDI_RX_PWRDN_LANE0_MASK); |
1929 | val |= FDI_RX_PWRDN_LANE1_VAL(2) | FDI_RX_PWRDN_LANE0_VAL(2); | |
eede3b53 | 1930 | I915_WRITE(FDI_RX_MISC(PIPE_A), val); |
1ad960f2 | 1931 | |
eede3b53 | 1932 | val = I915_READ(FDI_RX_CTL(PIPE_A)); |
1ad960f2 | 1933 | val &= ~FDI_PCDCLK; |
eede3b53 | 1934 | I915_WRITE(FDI_RX_CTL(PIPE_A), val); |
1ad960f2 | 1935 | |
eede3b53 | 1936 | val = I915_READ(FDI_RX_CTL(PIPE_A)); |
1ad960f2 | 1937 | val &= ~FDI_RX_PLL_ENABLE; |
eede3b53 | 1938 | I915_WRITE(FDI_RX_CTL(PIPE_A), val); |
1ad960f2 PZ |
1939 | } |
1940 | ||
3d52ccf5 LY |
1941 | bool intel_ddi_is_audio_enabled(struct drm_i915_private *dev_priv, |
1942 | struct intel_crtc *intel_crtc) | |
1943 | { | |
1944 | u32 temp; | |
1945 | ||
e27daab4 | 1946 | if (intel_display_power_get_if_enabled(dev_priv, POWER_DOMAIN_AUDIO)) { |
3d52ccf5 | 1947 | temp = I915_READ(HSW_AUD_PIN_ELD_CP_VLD); |
e27daab4 ID |
1948 | |
1949 | intel_display_power_put(dev_priv, POWER_DOMAIN_AUDIO); | |
1950 | ||
3d52ccf5 LY |
1951 | if (temp & AUDIO_OUTPUT_ENABLE(intel_crtc->pipe)) |
1952 | return true; | |
1953 | } | |
e27daab4 | 1954 | |
3d52ccf5 LY |
1955 | return false; |
1956 | } | |
1957 | ||
6801c18c | 1958 | void intel_ddi_get_config(struct intel_encoder *encoder, |
5cec258b | 1959 | struct intel_crtc_state *pipe_config) |
045ac3b5 JB |
1960 | { |
1961 | struct drm_i915_private *dev_priv = encoder->base.dev->dev_private; | |
1962 | struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc); | |
0cb09a97 | 1963 | enum transcoder cpu_transcoder = pipe_config->cpu_transcoder; |
bbd440fb | 1964 | struct intel_hdmi *intel_hdmi; |
045ac3b5 JB |
1965 | u32 temp, flags = 0; |
1966 | ||
4d1de975 JN |
1967 | /* XXX: DSI transcoder paranoia */ |
1968 | if (WARN_ON(transcoder_is_dsi(cpu_transcoder))) | |
1969 | return; | |
1970 | ||
045ac3b5 JB |
1971 | temp = I915_READ(TRANS_DDI_FUNC_CTL(cpu_transcoder)); |
1972 | if (temp & TRANS_DDI_PHSYNC) | |
1973 | flags |= DRM_MODE_FLAG_PHSYNC; | |
1974 | else | |
1975 | flags |= DRM_MODE_FLAG_NHSYNC; | |
1976 | if (temp & TRANS_DDI_PVSYNC) | |
1977 | flags |= DRM_MODE_FLAG_PVSYNC; | |
1978 | else | |
1979 | flags |= DRM_MODE_FLAG_NVSYNC; | |
1980 | ||
2d112de7 | 1981 | pipe_config->base.adjusted_mode.flags |= flags; |
42571aef VS |
1982 | |
1983 | switch (temp & TRANS_DDI_BPC_MASK) { | |
1984 | case TRANS_DDI_BPC_6: | |
1985 | pipe_config->pipe_bpp = 18; | |
1986 | break; | |
1987 | case TRANS_DDI_BPC_8: | |
1988 | pipe_config->pipe_bpp = 24; | |
1989 | break; | |
1990 | case TRANS_DDI_BPC_10: | |
1991 | pipe_config->pipe_bpp = 30; | |
1992 | break; | |
1993 | case TRANS_DDI_BPC_12: | |
1994 | pipe_config->pipe_bpp = 36; | |
1995 | break; | |
1996 | default: | |
1997 | break; | |
1998 | } | |
eb14cb74 VS |
1999 | |
2000 | switch (temp & TRANS_DDI_MODE_SELECT_MASK) { | |
2001 | case TRANS_DDI_MODE_SELECT_HDMI: | |
6897b4b5 | 2002 | pipe_config->has_hdmi_sink = true; |
bbd440fb DV |
2003 | intel_hdmi = enc_to_intel_hdmi(&encoder->base); |
2004 | ||
cda0aaaf | 2005 | if (intel_hdmi->infoframe_enabled(&encoder->base, pipe_config)) |
bbd440fb | 2006 | pipe_config->has_infoframe = true; |
cbc572a9 | 2007 | break; |
eb14cb74 VS |
2008 | case TRANS_DDI_MODE_SELECT_DVI: |
2009 | case TRANS_DDI_MODE_SELECT_FDI: | |
2010 | break; | |
2011 | case TRANS_DDI_MODE_SELECT_DP_SST: | |
2012 | case TRANS_DDI_MODE_SELECT_DP_MST: | |
2013 | pipe_config->has_dp_encoder = true; | |
90a6b7b0 VS |
2014 | pipe_config->lane_count = |
2015 | ((temp & DDI_PORT_WIDTH_MASK) >> DDI_PORT_WIDTH_SHIFT) + 1; | |
eb14cb74 VS |
2016 | intel_dp_get_m_n(intel_crtc, pipe_config); |
2017 | break; | |
2018 | default: | |
2019 | break; | |
2020 | } | |
10214420 | 2021 | |
3d52ccf5 LY |
2022 | pipe_config->has_audio = |
2023 | intel_ddi_is_audio_enabled(dev_priv, intel_crtc); | |
9ed109a7 | 2024 | |
6aa23e65 JN |
2025 | if (encoder->type == INTEL_OUTPUT_EDP && dev_priv->vbt.edp.bpp && |
2026 | pipe_config->pipe_bpp > dev_priv->vbt.edp.bpp) { | |
10214420 DV |
2027 | /* |
2028 | * This is a big fat ugly hack. | |
2029 | * | |
2030 | * Some machines in UEFI boot mode provide us a VBT that has 18 | |
2031 | * bpp and 1.62 GHz link bandwidth for eDP, which for reasons | |
2032 | * unknown we fail to light up. Yet the same BIOS boots up with | |
2033 | * 24 bpp and 2.7 GHz link. Use the same bpp as the BIOS uses as | |
2034 | * max, not what it tells us to use. | |
2035 | * | |
2036 | * Note: This will still be broken if the eDP panel is not lit | |
2037 | * up by the BIOS, and thus we can't get the mode at module | |
2038 | * load. | |
2039 | */ | |
2040 | DRM_DEBUG_KMS("pipe has %d bpp for eDP panel, overriding BIOS-provided max %d bpp\n", | |
6aa23e65 JN |
2041 | pipe_config->pipe_bpp, dev_priv->vbt.edp.bpp); |
2042 | dev_priv->vbt.edp.bpp = pipe_config->pipe_bpp; | |
10214420 | 2043 | } |
11578553 | 2044 | |
22606a18 | 2045 | intel_ddi_clock_get(encoder, pipe_config); |
045ac3b5 JB |
2046 | } |
2047 | ||
00c09d70 PZ |
2048 | static void intel_ddi_destroy(struct drm_encoder *encoder) |
2049 | { | |
2050 | /* HDMI has nothing special to destroy, so we can go with this. */ | |
2051 | intel_dp_encoder_destroy(encoder); | |
2052 | } | |
2053 | ||
5bfe2ac0 | 2054 | static bool intel_ddi_compute_config(struct intel_encoder *encoder, |
5cec258b | 2055 | struct intel_crtc_state *pipe_config) |
00c09d70 | 2056 | { |
5bfe2ac0 | 2057 | int type = encoder->type; |
eccb140b | 2058 | int port = intel_ddi_get_encoder_port(encoder); |
00c09d70 | 2059 | |
5bfe2ac0 | 2060 | WARN(type == INTEL_OUTPUT_UNKNOWN, "compute_config() on unknown output!\n"); |
00c09d70 | 2061 | |
eccb140b DV |
2062 | if (port == PORT_A) |
2063 | pipe_config->cpu_transcoder = TRANSCODER_EDP; | |
2064 | ||
00c09d70 | 2065 | if (type == INTEL_OUTPUT_HDMI) |
5bfe2ac0 | 2066 | return intel_hdmi_compute_config(encoder, pipe_config); |
00c09d70 | 2067 | else |
5bfe2ac0 | 2068 | return intel_dp_compute_config(encoder, pipe_config); |
00c09d70 PZ |
2069 | } |
2070 | ||
2071 | static const struct drm_encoder_funcs intel_ddi_funcs = { | |
2072 | .destroy = intel_ddi_destroy, | |
2073 | }; | |
2074 | ||
4a28ae58 PZ |
2075 | static struct intel_connector * |
2076 | intel_ddi_init_dp_connector(struct intel_digital_port *intel_dig_port) | |
2077 | { | |
2078 | struct intel_connector *connector; | |
2079 | enum port port = intel_dig_port->port; | |
2080 | ||
9bdbd0b9 | 2081 | connector = intel_connector_alloc(); |
4a28ae58 PZ |
2082 | if (!connector) |
2083 | return NULL; | |
2084 | ||
2085 | intel_dig_port->dp.output_reg = DDI_BUF_CTL(port); | |
2086 | if (!intel_dp_init_connector(intel_dig_port, connector)) { | |
2087 | kfree(connector); | |
2088 | return NULL; | |
2089 | } | |
2090 | ||
2091 | return connector; | |
2092 | } | |
2093 | ||
2094 | static struct intel_connector * | |
2095 | intel_ddi_init_hdmi_connector(struct intel_digital_port *intel_dig_port) | |
2096 | { | |
2097 | struct intel_connector *connector; | |
2098 | enum port port = intel_dig_port->port; | |
2099 | ||
9bdbd0b9 | 2100 | connector = intel_connector_alloc(); |
4a28ae58 PZ |
2101 | if (!connector) |
2102 | return NULL; | |
2103 | ||
2104 | intel_dig_port->hdmi.hdmi_reg = DDI_BUF_CTL(port); | |
2105 | intel_hdmi_init_connector(intel_dig_port, connector); | |
2106 | ||
2107 | return connector; | |
2108 | } | |
2109 | ||
00c09d70 PZ |
2110 | void intel_ddi_init(struct drm_device *dev, enum port port) |
2111 | { | |
876a8cdf | 2112 | struct drm_i915_private *dev_priv = dev->dev_private; |
00c09d70 PZ |
2113 | struct intel_digital_port *intel_dig_port; |
2114 | struct intel_encoder *intel_encoder; | |
2115 | struct drm_encoder *encoder; | |
311a2094 | 2116 | bool init_hdmi, init_dp; |
10e7bec3 VS |
2117 | int max_lanes; |
2118 | ||
2119 | if (I915_READ(DDI_BUF_CTL(PORT_A)) & DDI_A_4_LANES) { | |
2120 | switch (port) { | |
2121 | case PORT_A: | |
2122 | max_lanes = 4; | |
2123 | break; | |
2124 | case PORT_E: | |
2125 | max_lanes = 0; | |
2126 | break; | |
2127 | default: | |
2128 | max_lanes = 4; | |
2129 | break; | |
2130 | } | |
2131 | } else { | |
2132 | switch (port) { | |
2133 | case PORT_A: | |
2134 | max_lanes = 2; | |
2135 | break; | |
2136 | case PORT_E: | |
2137 | max_lanes = 2; | |
2138 | break; | |
2139 | default: | |
2140 | max_lanes = 4; | |
2141 | break; | |
2142 | } | |
2143 | } | |
311a2094 PZ |
2144 | |
2145 | init_hdmi = (dev_priv->vbt.ddi_port_info[port].supports_dvi || | |
2146 | dev_priv->vbt.ddi_port_info[port].supports_hdmi); | |
2147 | init_dp = dev_priv->vbt.ddi_port_info[port].supports_dp; | |
2148 | if (!init_dp && !init_hdmi) { | |
500ea70d | 2149 | DRM_DEBUG_KMS("VBT says port %c is not DVI/HDMI/DP compatible, respect it\n", |
311a2094 | 2150 | port_name(port)); |
500ea70d | 2151 | return; |
311a2094 | 2152 | } |
00c09d70 | 2153 | |
b14c5679 | 2154 | intel_dig_port = kzalloc(sizeof(*intel_dig_port), GFP_KERNEL); |
00c09d70 PZ |
2155 | if (!intel_dig_port) |
2156 | return; | |
2157 | ||
00c09d70 PZ |
2158 | intel_encoder = &intel_dig_port->base; |
2159 | encoder = &intel_encoder->base; | |
2160 | ||
2161 | drm_encoder_init(dev, encoder, &intel_ddi_funcs, | |
13a3d91f | 2162 | DRM_MODE_ENCODER_TMDS, NULL); |
00c09d70 | 2163 | |
5bfe2ac0 | 2164 | intel_encoder->compute_config = intel_ddi_compute_config; |
00c09d70 PZ |
2165 | intel_encoder->enable = intel_enable_ddi; |
2166 | intel_encoder->pre_enable = intel_ddi_pre_enable; | |
2167 | intel_encoder->disable = intel_disable_ddi; | |
2168 | intel_encoder->post_disable = intel_ddi_post_disable; | |
2169 | intel_encoder->get_hw_state = intel_ddi_get_hw_state; | |
045ac3b5 | 2170 | intel_encoder->get_config = intel_ddi_get_config; |
00c09d70 PZ |
2171 | |
2172 | intel_dig_port->port = port; | |
bcf53de4 SM |
2173 | intel_dig_port->saved_port_bits = I915_READ(DDI_BUF_CTL(port)) & |
2174 | (DDI_BUF_PORT_REVERSAL | | |
2175 | DDI_A_4_LANES); | |
00c09d70 | 2176 | |
6c566dc9 MR |
2177 | /* |
2178 | * Bspec says that DDI_A_4_LANES is the only supported configuration | |
2179 | * for Broxton. Yet some BIOS fail to set this bit on port A if eDP | |
2180 | * wasn't lit up at boot. Force this bit on in our internal | |
2181 | * configuration so that we use the proper lane count for our | |
2182 | * calculations. | |
2183 | */ | |
2184 | if (IS_BROXTON(dev) && port == PORT_A) { | |
2185 | if (!(intel_dig_port->saved_port_bits & DDI_A_4_LANES)) { | |
2186 | DRM_DEBUG_KMS("BXT BIOS forgot to set DDI_A_4_LANES for port A; fixing\n"); | |
2187 | intel_dig_port->saved_port_bits |= DDI_A_4_LANES; | |
ed8d60f4 | 2188 | max_lanes = 4; |
6c566dc9 MR |
2189 | } |
2190 | } | |
2191 | ||
ed8d60f4 MR |
2192 | intel_dig_port->max_lanes = max_lanes; |
2193 | ||
00c09d70 | 2194 | intel_encoder->type = INTEL_OUTPUT_UNKNOWN; |
f68d697e | 2195 | intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2); |
bc079e8b | 2196 | intel_encoder->cloneable = 0; |
00c09d70 | 2197 | |
f68d697e CW |
2198 | if (init_dp) { |
2199 | if (!intel_ddi_init_dp_connector(intel_dig_port)) | |
2200 | goto err; | |
13cf5504 | 2201 | |
f68d697e | 2202 | intel_dig_port->hpd_pulse = intel_dp_hpd_pulse; |
cf1d5883 SJ |
2203 | /* |
2204 | * On BXT A0/A1, sw needs to activate DDIA HPD logic and | |
2205 | * interrupts to check the external panel connection. | |
2206 | */ | |
e87a005d | 2207 | if (IS_BXT_REVID(dev, 0, BXT_REVID_A1) && port == PORT_B) |
cf1d5883 SJ |
2208 | dev_priv->hotplug.irq_port[PORT_A] = intel_dig_port; |
2209 | else | |
2210 | dev_priv->hotplug.irq_port[port] = intel_dig_port; | |
f68d697e | 2211 | } |
21a8e6a4 | 2212 | |
311a2094 PZ |
2213 | /* In theory we don't need the encoder->type check, but leave it just in |
2214 | * case we have some really bad VBTs... */ | |
f68d697e CW |
2215 | if (intel_encoder->type != INTEL_OUTPUT_EDP && init_hdmi) { |
2216 | if (!intel_ddi_init_hdmi_connector(intel_dig_port)) | |
2217 | goto err; | |
21a8e6a4 | 2218 | } |
f68d697e CW |
2219 | |
2220 | return; | |
2221 | ||
2222 | err: | |
2223 | drm_encoder_cleanup(encoder); | |
2224 | kfree(intel_dig_port); | |
00c09d70 | 2225 | } |