1 /*
2 * Copyright 2012-15 Advanced Micro Devices, Inc.
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 shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Authors: AMD
23 *
24 */
25
26 #include "reg_helper.h"
27
28 #include <linux/delay.h>
29 #include "core_types.h"
30 #include "link_encoder.h"
31 #include "dcn21_link_encoder.h"
32 #include "stream_encoder.h"
33
34 #include "dc_bios_types.h"
35
36 #include "gpio_service_interface.h"
37
38 #define CTX \
39 enc10->base.ctx
40 #define DC_LOGGER \
41 enc10->base.ctx->logger
42
43 #define REG(reg)\
44 (enc10->link_regs->reg)
45
46 #undef FN
47 #define FN(reg_name, field_name) \
48 enc10->link_shift->field_name, enc10->link_mask->field_name
49
50 #define IND_REG(index) \
51 (enc10->link_regs->index)
52
53 static struct mpll_cfg dcn21_mpll_cfg_ref[] = {
54 // RBR
55 {
56 .hdmimode_enable = 0,
57 .ref_range = 1,
58 .ref_clk_mpllb_div = 1,
59 .mpllb_ssc_en = 1,
60 .mpllb_div5_clk_en = 1,
61 .mpllb_multiplier = 238,
62 .mpllb_fracn_en = 0,
63 .mpllb_fracn_quot = 0,
64 .mpllb_fracn_rem = 0,
65 .mpllb_fracn_den = 1,
66 .mpllb_ssc_up_spread = 0,
67 .mpllb_ssc_peak = 44237,
68 .mpllb_ssc_stepsize = 59454,
69 .mpllb_div_clk_en = 0,
70 .mpllb_div_multiplier = 0,
71 .mpllb_hdmi_div = 0,
72 .mpllb_tx_clk_div = 2,
73 .tx_vboost_lvl = 5,
74 .mpllb_pmix_en = 1,
75 .mpllb_word_div2_en = 0,
76 .mpllb_ana_v2i = 2,
77 .mpllb_ana_freq_vco = 2,
78 .mpllb_ana_cp_int = 9,
79 .mpllb_ana_cp_prop = 15,
80 .hdmi_pixel_clk_div = 0,
81 },
82 // HBR
83 {
84 .hdmimode_enable = 0,
85 .ref_range = 1,
86 .ref_clk_mpllb_div = 1,
87 .mpllb_ssc_en = 1,
88 .mpllb_div5_clk_en = 1,
89 .mpllb_multiplier = 192,
90 .mpllb_fracn_en = 1,
91 .mpllb_fracn_quot = 32768,
92 .mpllb_fracn_rem = 0,
93 .mpllb_fracn_den = 1,
94 .mpllb_ssc_up_spread = 0,
95 .mpllb_ssc_peak = 36864,
96 .mpllb_ssc_stepsize = 49545,
97 .mpllb_div_clk_en = 0,
98 .mpllb_div_multiplier = 0,
99 .mpllb_hdmi_div = 0,
100 .mpllb_tx_clk_div = 1,
101 .tx_vboost_lvl = 5,
102 .mpllb_pmix_en = 1,
103 .mpllb_word_div2_en = 0,
104 .mpllb_ana_v2i = 2,
105 .mpllb_ana_freq_vco = 3,
106 .mpllb_ana_cp_int = 9,
107 .mpllb_ana_cp_prop = 15,
108 .hdmi_pixel_clk_div = 0,
109 },
110 //HBR2
111 {
112 .hdmimode_enable = 0,
113 .ref_range = 1,
114 .ref_clk_mpllb_div = 1,
115 .mpllb_ssc_en = 1,
116 .mpllb_div5_clk_en = 1,
117 .mpllb_multiplier = 192,
118 .mpllb_fracn_en = 1,
119 .mpllb_fracn_quot = 32768,
120 .mpllb_fracn_rem = 0,
121 .mpllb_fracn_den = 1,
122 .mpllb_ssc_up_spread = 0,
123 .mpllb_ssc_peak = 36864,
124 .mpllb_ssc_stepsize = 49545,
125 .mpllb_div_clk_en = 0,
126 .mpllb_div_multiplier = 0,
127 .mpllb_hdmi_div = 0,
128 .mpllb_tx_clk_div = 0,
129 .tx_vboost_lvl = 5,
130 .mpllb_pmix_en = 1,
131 .mpllb_word_div2_en = 0,
132 .mpllb_ana_v2i = 2,
133 .mpllb_ana_freq_vco = 3,
134 .mpllb_ana_cp_int = 9,
135 .mpllb_ana_cp_prop = 15,
136 .hdmi_pixel_clk_div = 0,
137 },
138 //HBR3
139 {
140 .hdmimode_enable = 0,
141 .ref_range = 1,
142 .ref_clk_mpllb_div = 1,
143 .mpllb_ssc_en = 1,
144 .mpllb_div5_clk_en = 1,
145 .mpllb_multiplier = 304,
146 .mpllb_fracn_en = 1,
147 .mpllb_fracn_quot = 49152,
148 .mpllb_fracn_rem = 0,
149 .mpllb_fracn_den = 1,
150 .mpllb_ssc_up_spread = 0,
151 .mpllb_ssc_peak = 55296,
152 .mpllb_ssc_stepsize = 74318,
153 .mpllb_div_clk_en = 0,
154 .mpllb_div_multiplier = 0,
155 .mpllb_hdmi_div = 0,
156 .mpllb_tx_clk_div = 0,
157 .tx_vboost_lvl = 5,
158 .mpllb_pmix_en = 1,
159 .mpllb_word_div2_en = 0,
160 .mpllb_ana_v2i = 2,
161 .mpllb_ana_freq_vco = 1,
162 .mpllb_ana_cp_int = 7,
163 .mpllb_ana_cp_prop = 16,
164 .hdmi_pixel_clk_div = 0,
165 },
166 };
167
168
update_cfg_data(struct dcn10_link_encoder * enc10,const struct dc_link_settings * link_settings,struct dpcssys_phy_seq_cfg * cfg)169 static bool update_cfg_data(
170 struct dcn10_link_encoder *enc10,
171 const struct dc_link_settings *link_settings,
172 struct dpcssys_phy_seq_cfg *cfg)
173 {
174 int i;
175
176 cfg->load_sram_fw = false;
177 cfg->use_calibration_setting = true;
178
179 //TODO: need to implement a proper lane mapping for Renoir.
180 for (i = 0; i < 4; i++)
181 cfg->lane_en[i] = true;
182
183 switch (link_settings->link_rate) {
184 case LINK_RATE_LOW:
185 cfg->mpll_cfg = dcn21_mpll_cfg_ref[0];
186 break;
187 case LINK_RATE_HIGH:
188 cfg->mpll_cfg = dcn21_mpll_cfg_ref[1];
189 break;
190 case LINK_RATE_HIGH2:
191 cfg->mpll_cfg = dcn21_mpll_cfg_ref[2];
192 break;
193 case LINK_RATE_HIGH3:
194 cfg->mpll_cfg = dcn21_mpll_cfg_ref[3];
195 break;
196 default:
197 DC_LOG_ERROR("%s: No supported link rate found %X!\n",
198 __func__, link_settings->link_rate);
199 return false;
200 }
201
202 return true;
203 }
204
dcn21_link_encoder_acquire_phy(struct link_encoder * enc)205 static bool dcn21_link_encoder_acquire_phy(struct link_encoder *enc)
206 {
207 struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
208 int value;
209
210 if (enc->features.flags.bits.DP_IS_USB_C) {
211 REG_GET(RDPCSTX_PHY_CNTL6,
212 RDPCS_PHY_DPALT_DISABLE, &value);
213
214 if (value == 1) {
215 ASSERT(0);
216 return false;
217 }
218 REG_UPDATE(RDPCSTX_PHY_CNTL6,
219 RDPCS_PHY_DPALT_DISABLE_ACK, 0);
220
221 udelay(40);
222
223 REG_GET(RDPCSTX_PHY_CNTL6,
224 RDPCS_PHY_DPALT_DISABLE, &value);
225 if (value == 1) {
226 ASSERT(0);
227 REG_UPDATE(RDPCSTX_PHY_CNTL6,
228 RDPCS_PHY_DPALT_DISABLE_ACK, 1);
229 return false;
230 }
231 }
232
233 REG_UPDATE(RDPCSTX_PHY_CNTL6, RDPCS_PHY_DP_REF_CLK_EN, 1);
234
235 return true;
236 }
237
238
239
dcn21_link_encoder_release_phy(struct link_encoder * enc)240 static void dcn21_link_encoder_release_phy(struct link_encoder *enc)
241 {
242 struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
243
244 if (enc->features.flags.bits.DP_IS_USB_C) {
245 REG_UPDATE(RDPCSTX_PHY_CNTL6,
246 RDPCS_PHY_DPALT_DISABLE_ACK, 1);
247 }
248
249 REG_UPDATE(RDPCSTX_PHY_CNTL6, RDPCS_PHY_DP_REF_CLK_EN, 0);
250
251 }
252
dcn21_link_encoder_enable_dp_output(struct link_encoder * enc,const struct dc_link_settings * link_settings,enum clock_source_id clock_source)253 void dcn21_link_encoder_enable_dp_output(
254 struct link_encoder *enc,
255 const struct dc_link_settings *link_settings,
256 enum clock_source_id clock_source)
257 {
258 struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
259 struct dcn21_link_encoder *enc21 = (struct dcn21_link_encoder *) enc10;
260 struct dpcssys_phy_seq_cfg *cfg = &enc21->phy_seq_cfg;
261
262 if (!dcn21_link_encoder_acquire_phy(enc))
263 return;
264
265 if (!enc->ctx->dc->debug.avoid_vbios_exec_table) {
266 dcn10_link_encoder_enable_dp_output(enc, link_settings, clock_source);
267 return;
268 }
269
270 if (!update_cfg_data(enc10, link_settings, cfg))
271 return;
272
273 enc1_configure_encoder(enc10, link_settings);
274
275 dcn10_link_encoder_setup(enc, SIGNAL_TYPE_DISPLAY_PORT);
276
277 }
278
dcn21_link_encoder_enable_dp_mst_output(struct link_encoder * enc,const struct dc_link_settings * link_settings,enum clock_source_id clock_source)279 static void dcn21_link_encoder_enable_dp_mst_output(
280 struct link_encoder *enc,
281 const struct dc_link_settings *link_settings,
282 enum clock_source_id clock_source)
283 {
284 if (!dcn21_link_encoder_acquire_phy(enc))
285 return;
286
287 dcn10_link_encoder_enable_dp_mst_output(enc, link_settings, clock_source);
288 }
289
dcn21_link_encoder_disable_output(struct link_encoder * enc,enum signal_type signal)290 static void dcn21_link_encoder_disable_output(struct link_encoder *enc,
291 enum signal_type signal)
292 {
293 dcn10_link_encoder_disable_output(enc, signal);
294
295 if (dc_is_dp_signal(signal))
296 dcn21_link_encoder_release_phy(enc);
297 }
298
299
300 static const struct link_encoder_funcs dcn21_link_enc_funcs = {
301 .read_state = link_enc2_read_state,
302 .validate_output_with_stream =
303 dcn10_link_encoder_validate_output_with_stream,
304 .hw_init = enc2_hw_init,
305 .setup = dcn10_link_encoder_setup,
306 .enable_tmds_output = dcn10_link_encoder_enable_tmds_output,
307 .enable_dp_output = dcn21_link_encoder_enable_dp_output,
308 .enable_dp_mst_output = dcn21_link_encoder_enable_dp_mst_output,
309 .disable_output = dcn21_link_encoder_disable_output,
310 .dp_set_lane_settings = dcn10_link_encoder_dp_set_lane_settings,
311 .dp_set_phy_pattern = dcn10_link_encoder_dp_set_phy_pattern,
312 .update_mst_stream_allocation_table =
313 dcn10_link_encoder_update_mst_stream_allocation_table,
314 .psr_program_dp_dphy_fast_training =
315 dcn10_psr_program_dp_dphy_fast_training,
316 .psr_program_secondary_packet = dcn10_psr_program_secondary_packet,
317 .connect_dig_be_to_fe = dcn10_link_encoder_connect_dig_be_to_fe,
318 .enable_hpd = dcn10_link_encoder_enable_hpd,
319 .disable_hpd = dcn10_link_encoder_disable_hpd,
320 .is_dig_enabled = dcn10_is_dig_enabled,
321 .destroy = dcn10_link_encoder_destroy,
322 .fec_set_enable = enc2_fec_set_enable,
323 .fec_set_ready = enc2_fec_set_ready,
324 .fec_is_active = enc2_fec_is_active,
325 .get_dig_frontend = dcn10_get_dig_frontend,
326 .is_in_alt_mode = dcn20_link_encoder_is_in_alt_mode,
327 .get_max_link_cap = dcn20_link_encoder_get_max_link_cap,
328 };
329
dcn21_link_encoder_construct(struct dcn21_link_encoder * enc21,const struct encoder_init_data * init_data,const struct encoder_feature_support * enc_features,const struct dcn10_link_enc_registers * link_regs,const struct dcn10_link_enc_aux_registers * aux_regs,const struct dcn10_link_enc_hpd_registers * hpd_regs,const struct dcn10_link_enc_shift * link_shift,const struct dcn10_link_enc_mask * link_mask)330 void dcn21_link_encoder_construct(
331 struct dcn21_link_encoder *enc21,
332 const struct encoder_init_data *init_data,
333 const struct encoder_feature_support *enc_features,
334 const struct dcn10_link_enc_registers *link_regs,
335 const struct dcn10_link_enc_aux_registers *aux_regs,
336 const struct dcn10_link_enc_hpd_registers *hpd_regs,
337 const struct dcn10_link_enc_shift *link_shift,
338 const struct dcn10_link_enc_mask *link_mask)
339 {
340 struct bp_encoder_cap_info bp_cap_info = {0};
341 const struct dc_vbios_funcs *bp_funcs = init_data->ctx->dc_bios->funcs;
342 enum bp_result result = BP_RESULT_OK;
343 struct dcn10_link_encoder *enc10 = &enc21->enc10;
344
345 enc10->base.funcs = &dcn21_link_enc_funcs;
346 enc10->base.ctx = init_data->ctx;
347 enc10->base.id = init_data->encoder;
348
349 enc10->base.hpd_source = init_data->hpd_source;
350 enc10->base.connector = init_data->connector;
351
352 enc10->base.preferred_engine = ENGINE_ID_UNKNOWN;
353
354 enc10->base.features = *enc_features;
355
356 enc10->base.transmitter = init_data->transmitter;
357
358 /* set the flag to indicate whether driver poll the I2C data pin
359 * while doing the DP sink detect
360 */
361
362 /* if (dal_adapter_service_is_feature_supported(as,
363 FEATURE_DP_SINK_DETECT_POLL_DATA_PIN))
364 enc10->base.features.flags.bits.
365 DP_SINK_DETECT_POLL_DATA_PIN = true;*/
366
367 enc10->base.output_signals =
368 SIGNAL_TYPE_DVI_SINGLE_LINK |
369 SIGNAL_TYPE_DVI_DUAL_LINK |
370 SIGNAL_TYPE_LVDS |
371 SIGNAL_TYPE_DISPLAY_PORT |
372 SIGNAL_TYPE_DISPLAY_PORT_MST |
373 SIGNAL_TYPE_EDP |
374 SIGNAL_TYPE_HDMI_TYPE_A;
375
376 /* For DCE 8.0 and 8.1, by design, UNIPHY is hardwired to DIG_BE.
377 * SW always assign DIG_FE 1:1 mapped to DIG_FE for non-MST UNIPHY.
378 * SW assign DIG_FE to non-MST UNIPHY first and MST last. So prefer
379 * DIG is per UNIPHY and used by SST DP, eDP, HDMI, DVI and LVDS.
380 * Prefer DIG assignment is decided by board design.
381 * For DCE 8.0, there are only max 6 UNIPHYs, we assume board design
382 * and VBIOS will filter out 7 UNIPHY for DCE 8.0.
383 * By this, adding DIGG should not hurt DCE 8.0.
384 * This will let DCE 8.1 share DCE 8.0 as much as possible
385 */
386
387 enc10->link_regs = link_regs;
388 enc10->aux_regs = aux_regs;
389 enc10->hpd_regs = hpd_regs;
390 enc10->link_shift = link_shift;
391 enc10->link_mask = link_mask;
392
393 switch (enc10->base.transmitter) {
394 case TRANSMITTER_UNIPHY_A:
395 enc10->base.preferred_engine = ENGINE_ID_DIGA;
396 break;
397 case TRANSMITTER_UNIPHY_B:
398 enc10->base.preferred_engine = ENGINE_ID_DIGB;
399 break;
400 case TRANSMITTER_UNIPHY_C:
401 enc10->base.preferred_engine = ENGINE_ID_DIGC;
402 break;
403 case TRANSMITTER_UNIPHY_D:
404 enc10->base.preferred_engine = ENGINE_ID_DIGD;
405 break;
406 case TRANSMITTER_UNIPHY_E:
407 enc10->base.preferred_engine = ENGINE_ID_DIGE;
408 break;
409 case TRANSMITTER_UNIPHY_F:
410 enc10->base.preferred_engine = ENGINE_ID_DIGF;
411 break;
412 case TRANSMITTER_UNIPHY_G:
413 enc10->base.preferred_engine = ENGINE_ID_DIGG;
414 break;
415 default:
416 ASSERT_CRITICAL(false);
417 enc10->base.preferred_engine = ENGINE_ID_UNKNOWN;
418 }
419
420 /* default to one to mirror Windows behavior */
421 enc10->base.features.flags.bits.HDMI_6GB_EN = 1;
422
423 result = bp_funcs->get_encoder_cap_info(enc10->base.ctx->dc_bios,
424 enc10->base.id, &bp_cap_info);
425
426 /* Override features with DCE-specific values */
427 if (result == BP_RESULT_OK) {
428 enc10->base.features.flags.bits.IS_HBR2_CAPABLE =
429 bp_cap_info.DP_HBR2_EN;
430 enc10->base.features.flags.bits.IS_HBR3_CAPABLE =
431 bp_cap_info.DP_HBR3_EN;
432 enc10->base.features.flags.bits.HDMI_6GB_EN = bp_cap_info.HDMI_6GB_EN;
433 enc10->base.features.flags.bits.DP_IS_USB_C =
434 bp_cap_info.DP_IS_USB_C;
435 } else {
436 DC_LOG_WARNING("%s: Failed to get encoder_cap_info from VBIOS with error code %d!\n",
437 __func__,
438 result);
439 }
440 if (enc10->base.ctx->dc->debug.hdmi20_disable) {
441 enc10->base.features.flags.bits.HDMI_6GB_EN = 0;
442 }
443 }
444