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 "dm_services.h"
27
28
29 #include "dc_types.h"
30 #include "core_types.h"
31
32 #include "include/grph_object_id.h"
33 #include "include/logger_interface.h"
34
35 #include "dce_clock_source.h"
36 #include "clk_mgr.h"
37
38 #include "reg_helper.h"
39
40 #define REG(reg)\
41 (clk_src->regs->reg)
42
43 #define CTX \
44 clk_src->base.ctx
45
46 #define DC_LOGGER_INIT()
47
48 #undef FN
49 #define FN(reg_name, field_name) \
50 clk_src->cs_shift->field_name, clk_src->cs_mask->field_name
51
52 #define FRACT_FB_DIVIDER_DEC_POINTS_MAX_NUM 6
53 #define CALC_PLL_CLK_SRC_ERR_TOLERANCE 1
54 #define MAX_PLL_CALC_ERROR 0xFFFFFFFF
55
56 #define NUM_ELEMENTS(a) (sizeof(a) / sizeof((a)[0]))
57
get_ss_data_entry(struct dce110_clk_src * clk_src,enum signal_type signal,uint32_t pix_clk_khz)58 static const struct spread_spectrum_data *get_ss_data_entry(
59 struct dce110_clk_src *clk_src,
60 enum signal_type signal,
61 uint32_t pix_clk_khz)
62 {
63
64 uint32_t entrys_num;
65 uint32_t i;
66 struct spread_spectrum_data *ss_parm = NULL;
67 struct spread_spectrum_data *ret = NULL;
68
69 switch (signal) {
70 case SIGNAL_TYPE_DVI_SINGLE_LINK:
71 case SIGNAL_TYPE_DVI_DUAL_LINK:
72 ss_parm = clk_src->dvi_ss_params;
73 entrys_num = clk_src->dvi_ss_params_cnt;
74 break;
75
76 case SIGNAL_TYPE_HDMI_TYPE_A:
77 ss_parm = clk_src->hdmi_ss_params;
78 entrys_num = clk_src->hdmi_ss_params_cnt;
79 break;
80
81 case SIGNAL_TYPE_LVDS:
82 ss_parm = clk_src->lvds_ss_params;
83 entrys_num = clk_src->lvds_ss_params_cnt;
84 break;
85
86 case SIGNAL_TYPE_DISPLAY_PORT:
87 case SIGNAL_TYPE_DISPLAY_PORT_MST:
88 case SIGNAL_TYPE_EDP:
89 case SIGNAL_TYPE_VIRTUAL:
90 ss_parm = clk_src->dp_ss_params;
91 entrys_num = clk_src->dp_ss_params_cnt;
92 break;
93
94 default:
95 ss_parm = NULL;
96 entrys_num = 0;
97 break;
98 }
99
100 if (ss_parm == NULL)
101 return ret;
102
103 for (i = 0; i < entrys_num; ++i, ++ss_parm) {
104 if (ss_parm->freq_range_khz >= pix_clk_khz) {
105 ret = ss_parm;
106 break;
107 }
108 }
109
110 return ret;
111 }
112
113 /**
114 * calculate_fb_and_fractional_fb_divider - Calculates feedback and fractional
115 * feedback dividers values
116 *
117 * @calc_pll_cs: Pointer to clock source information
118 * @target_pix_clk_100hz: Desired frequency in 100 Hz
119 * @ref_divider: Reference divider (already known)
120 * @post_divider: Post Divider (already known)
121 * @feedback_divider_param: Pointer where to store
122 * calculated feedback divider value
123 * @fract_feedback_divider_param: Pointer where to store
124 * calculated fract feedback divider value
125 *
126 * return:
127 * It fills the locations pointed by feedback_divider_param
128 * and fract_feedback_divider_param
129 * It returns - true if feedback divider not 0
130 * - false should never happen)
131 */
calculate_fb_and_fractional_fb_divider(struct calc_pll_clock_source * calc_pll_cs,uint32_t target_pix_clk_100hz,uint32_t ref_divider,uint32_t post_divider,uint32_t * feedback_divider_param,uint32_t * fract_feedback_divider_param)132 static bool calculate_fb_and_fractional_fb_divider(
133 struct calc_pll_clock_source *calc_pll_cs,
134 uint32_t target_pix_clk_100hz,
135 uint32_t ref_divider,
136 uint32_t post_divider,
137 uint32_t *feedback_divider_param,
138 uint32_t *fract_feedback_divider_param)
139 {
140 uint64_t feedback_divider;
141
142 feedback_divider =
143 (uint64_t)target_pix_clk_100hz * ref_divider * post_divider;
144 feedback_divider *= 10;
145 /* additional factor, since we divide by 10 afterwards */
146 feedback_divider *= (uint64_t)(calc_pll_cs->fract_fb_divider_factor);
147 feedback_divider = div_u64(feedback_divider, calc_pll_cs->ref_freq_khz * 10ull);
148
149 /*Round to the number of precision
150 * The following code replace the old code (ullfeedbackDivider + 5)/10
151 * for example if the difference between the number
152 * of fractional feedback decimal point and the fractional FB Divider precision
153 * is 2 then the equation becomes (ullfeedbackDivider + 5*100) / (10*100))*/
154
155 feedback_divider += 5ULL *
156 calc_pll_cs->fract_fb_divider_precision_factor;
157 feedback_divider =
158 div_u64(feedback_divider,
159 calc_pll_cs->fract_fb_divider_precision_factor * 10);
160 feedback_divider *= (uint64_t)
161 (calc_pll_cs->fract_fb_divider_precision_factor);
162
163 *feedback_divider_param =
164 div_u64_rem(
165 feedback_divider,
166 calc_pll_cs->fract_fb_divider_factor,
167 fract_feedback_divider_param);
168
169 if (*feedback_divider_param != 0)
170 return true;
171 return false;
172 }
173
174 /**
175 * calc_fb_divider_checking_tolerance - Calculates Feedback and
176 * Fractional Feedback divider values
177 * for passed Reference and Post divider,
178 * checking for tolerance.
179 * @calc_pll_cs: Pointer to clock source information
180 * @pll_settings: Pointer to PLL settings
181 * @ref_divider: Reference divider (already known)
182 * @post_divider: Post Divider (already known)
183 * @tolerance: Tolerance for Calculated Pixel Clock to be within
184 *
185 * return:
186 * It fills the PLLSettings structure with PLL Dividers values
187 * if calculated values are within required tolerance
188 * It returns - true if error is within tolerance
189 * - false if error is not within tolerance
190 */
calc_fb_divider_checking_tolerance(struct calc_pll_clock_source * calc_pll_cs,struct pll_settings * pll_settings,uint32_t ref_divider,uint32_t post_divider,uint32_t tolerance)191 static bool calc_fb_divider_checking_tolerance(
192 struct calc_pll_clock_source *calc_pll_cs,
193 struct pll_settings *pll_settings,
194 uint32_t ref_divider,
195 uint32_t post_divider,
196 uint32_t tolerance)
197 {
198 uint32_t feedback_divider;
199 uint32_t fract_feedback_divider;
200 uint32_t actual_calculated_clock_100hz;
201 uint32_t abs_err;
202 uint64_t actual_calc_clk_100hz;
203
204 calculate_fb_and_fractional_fb_divider(
205 calc_pll_cs,
206 pll_settings->adjusted_pix_clk_100hz,
207 ref_divider,
208 post_divider,
209 &feedback_divider,
210 &fract_feedback_divider);
211
212 /*Actual calculated value*/
213 actual_calc_clk_100hz = (uint64_t)feedback_divider *
214 calc_pll_cs->fract_fb_divider_factor +
215 fract_feedback_divider;
216 actual_calc_clk_100hz *= calc_pll_cs->ref_freq_khz * 10;
217 actual_calc_clk_100hz =
218 div_u64(actual_calc_clk_100hz,
219 ref_divider * post_divider *
220 calc_pll_cs->fract_fb_divider_factor);
221
222 actual_calculated_clock_100hz = (uint32_t)(actual_calc_clk_100hz);
223
224 abs_err = (actual_calculated_clock_100hz >
225 pll_settings->adjusted_pix_clk_100hz)
226 ? actual_calculated_clock_100hz -
227 pll_settings->adjusted_pix_clk_100hz
228 : pll_settings->adjusted_pix_clk_100hz -
229 actual_calculated_clock_100hz;
230
231 if (abs_err <= tolerance) {
232 /*found good values*/
233 pll_settings->reference_freq = calc_pll_cs->ref_freq_khz;
234 pll_settings->reference_divider = ref_divider;
235 pll_settings->feedback_divider = feedback_divider;
236 pll_settings->fract_feedback_divider = fract_feedback_divider;
237 pll_settings->pix_clk_post_divider = post_divider;
238 pll_settings->calculated_pix_clk_100hz =
239 actual_calculated_clock_100hz;
240 pll_settings->vco_freq =
241 div_u64((u64)actual_calculated_clock_100hz * post_divider, 10);
242 return true;
243 }
244 return false;
245 }
246
calc_pll_dividers_in_range(struct calc_pll_clock_source * calc_pll_cs,struct pll_settings * pll_settings,uint32_t min_ref_divider,uint32_t max_ref_divider,uint32_t min_post_divider,uint32_t max_post_divider,uint32_t err_tolerance)247 static bool calc_pll_dividers_in_range(
248 struct calc_pll_clock_source *calc_pll_cs,
249 struct pll_settings *pll_settings,
250 uint32_t min_ref_divider,
251 uint32_t max_ref_divider,
252 uint32_t min_post_divider,
253 uint32_t max_post_divider,
254 uint32_t err_tolerance)
255 {
256 uint32_t ref_divider;
257 uint32_t post_divider;
258 uint32_t tolerance;
259
260 /* This is err_tolerance / 10000 = 0.0025 - acceptable error of 0.25%
261 * This is errorTolerance / 10000 = 0.0001 - acceptable error of 0.01%*/
262 tolerance = (pll_settings->adjusted_pix_clk_100hz * err_tolerance) /
263 100000;
264 if (tolerance < CALC_PLL_CLK_SRC_ERR_TOLERANCE)
265 tolerance = CALC_PLL_CLK_SRC_ERR_TOLERANCE;
266
267 for (
268 post_divider = max_post_divider;
269 post_divider >= min_post_divider;
270 --post_divider) {
271 for (
272 ref_divider = min_ref_divider;
273 ref_divider <= max_ref_divider;
274 ++ref_divider) {
275 if (calc_fb_divider_checking_tolerance(
276 calc_pll_cs,
277 pll_settings,
278 ref_divider,
279 post_divider,
280 tolerance)) {
281 return true;
282 }
283 }
284 }
285
286 return false;
287 }
288
calculate_pixel_clock_pll_dividers(struct calc_pll_clock_source * calc_pll_cs,struct pll_settings * pll_settings)289 static uint32_t calculate_pixel_clock_pll_dividers(
290 struct calc_pll_clock_source *calc_pll_cs,
291 struct pll_settings *pll_settings)
292 {
293 uint32_t err_tolerance;
294 uint32_t min_post_divider;
295 uint32_t max_post_divider;
296 uint32_t min_ref_divider;
297 uint32_t max_ref_divider;
298
299 if (pll_settings->adjusted_pix_clk_100hz == 0) {
300 DC_LOG_ERROR(
301 "%s Bad requested pixel clock", __func__);
302 return MAX_PLL_CALC_ERROR;
303 }
304
305 /* 1) Find Post divider ranges */
306 if (pll_settings->pix_clk_post_divider) {
307 min_post_divider = pll_settings->pix_clk_post_divider;
308 max_post_divider = pll_settings->pix_clk_post_divider;
309 } else {
310 min_post_divider = calc_pll_cs->min_pix_clock_pll_post_divider;
311 if (min_post_divider * pll_settings->adjusted_pix_clk_100hz <
312 calc_pll_cs->min_vco_khz * 10) {
313 min_post_divider = calc_pll_cs->min_vco_khz * 10 /
314 pll_settings->adjusted_pix_clk_100hz;
315 if ((min_post_divider *
316 pll_settings->adjusted_pix_clk_100hz) <
317 calc_pll_cs->min_vco_khz * 10)
318 min_post_divider++;
319 }
320
321 max_post_divider = calc_pll_cs->max_pix_clock_pll_post_divider;
322 if (max_post_divider * pll_settings->adjusted_pix_clk_100hz
323 > calc_pll_cs->max_vco_khz * 10)
324 max_post_divider = calc_pll_cs->max_vco_khz * 10 /
325 pll_settings->adjusted_pix_clk_100hz;
326 }
327
328 /* 2) Find Reference divider ranges
329 * When SS is enabled, or for Display Port even without SS,
330 * pll_settings->referenceDivider is not zero.
331 * So calculate PPLL FB and fractional FB divider
332 * using the passed reference divider*/
333
334 if (pll_settings->reference_divider) {
335 min_ref_divider = pll_settings->reference_divider;
336 max_ref_divider = pll_settings->reference_divider;
337 } else {
338 min_ref_divider = ((calc_pll_cs->ref_freq_khz
339 / calc_pll_cs->max_pll_input_freq_khz)
340 > calc_pll_cs->min_pll_ref_divider)
341 ? calc_pll_cs->ref_freq_khz
342 / calc_pll_cs->max_pll_input_freq_khz
343 : calc_pll_cs->min_pll_ref_divider;
344
345 max_ref_divider = ((calc_pll_cs->ref_freq_khz
346 / calc_pll_cs->min_pll_input_freq_khz)
347 < calc_pll_cs->max_pll_ref_divider)
348 ? calc_pll_cs->ref_freq_khz /
349 calc_pll_cs->min_pll_input_freq_khz
350 : calc_pll_cs->max_pll_ref_divider;
351 }
352
353 /* If some parameters are invalid we could have scenario when "min">"max"
354 * which produced endless loop later.
355 * We should investigate why we get the wrong parameters.
356 * But to follow the similar logic when "adjustedPixelClock" is set to be 0
357 * it is better to return here than cause system hang/watchdog timeout later.
358 * ## SVS Wed 15 Jul 2009 */
359
360 if (min_post_divider > max_post_divider) {
361 DC_LOG_ERROR(
362 "%s Post divider range is invalid", __func__);
363 return MAX_PLL_CALC_ERROR;
364 }
365
366 if (min_ref_divider > max_ref_divider) {
367 DC_LOG_ERROR(
368 "%s Reference divider range is invalid", __func__);
369 return MAX_PLL_CALC_ERROR;
370 }
371
372 /* 3) Try to find PLL dividers given ranges
373 * starting with minimal error tolerance.
374 * Increase error tolerance until PLL dividers found*/
375 err_tolerance = MAX_PLL_CALC_ERROR;
376
377 while (!calc_pll_dividers_in_range(
378 calc_pll_cs,
379 pll_settings,
380 min_ref_divider,
381 max_ref_divider,
382 min_post_divider,
383 max_post_divider,
384 err_tolerance))
385 err_tolerance += (err_tolerance > 10)
386 ? (err_tolerance / 10)
387 : 1;
388
389 return err_tolerance;
390 }
391
pll_adjust_pix_clk(struct dce110_clk_src * clk_src,struct pixel_clk_params * pix_clk_params,struct pll_settings * pll_settings)392 static bool pll_adjust_pix_clk(
393 struct dce110_clk_src *clk_src,
394 struct pixel_clk_params *pix_clk_params,
395 struct pll_settings *pll_settings)
396 {
397 uint32_t actual_pix_clk_100hz = 0;
398 uint32_t requested_clk_100hz = 0;
399 struct bp_adjust_pixel_clock_parameters bp_adjust_pixel_clock_params = {
400 0 };
401 enum bp_result bp_result;
402 switch (pix_clk_params->signal_type) {
403 case SIGNAL_TYPE_HDMI_TYPE_A: {
404 requested_clk_100hz = pix_clk_params->requested_pix_clk_100hz;
405 if (pix_clk_params->pixel_encoding != PIXEL_ENCODING_YCBCR422) {
406 switch (pix_clk_params->color_depth) {
407 case COLOR_DEPTH_101010:
408 requested_clk_100hz = (requested_clk_100hz * 5) >> 2;
409 break; /* x1.25*/
410 case COLOR_DEPTH_121212:
411 requested_clk_100hz = (requested_clk_100hz * 6) >> 2;
412 break; /* x1.5*/
413 case COLOR_DEPTH_161616:
414 requested_clk_100hz = requested_clk_100hz * 2;
415 break; /* x2.0*/
416 default:
417 break;
418 }
419 }
420 actual_pix_clk_100hz = requested_clk_100hz;
421 }
422 break;
423
424 case SIGNAL_TYPE_DISPLAY_PORT:
425 case SIGNAL_TYPE_DISPLAY_PORT_MST:
426 case SIGNAL_TYPE_EDP:
427 requested_clk_100hz = pix_clk_params->requested_sym_clk * 10;
428 actual_pix_clk_100hz = pix_clk_params->requested_pix_clk_100hz;
429 break;
430
431 default:
432 requested_clk_100hz = pix_clk_params->requested_pix_clk_100hz;
433 actual_pix_clk_100hz = pix_clk_params->requested_pix_clk_100hz;
434 break;
435 }
436
437 bp_adjust_pixel_clock_params.pixel_clock = requested_clk_100hz / 10;
438 bp_adjust_pixel_clock_params.
439 encoder_object_id = pix_clk_params->encoder_object_id;
440 bp_adjust_pixel_clock_params.signal_type = pix_clk_params->signal_type;
441 bp_adjust_pixel_clock_params.
442 ss_enable = pix_clk_params->flags.ENABLE_SS;
443 bp_result = clk_src->bios->funcs->adjust_pixel_clock(
444 clk_src->bios, &bp_adjust_pixel_clock_params);
445 if (bp_result == BP_RESULT_OK) {
446 pll_settings->actual_pix_clk_100hz = actual_pix_clk_100hz;
447 pll_settings->adjusted_pix_clk_100hz =
448 bp_adjust_pixel_clock_params.adjusted_pixel_clock * 10;
449 pll_settings->reference_divider =
450 bp_adjust_pixel_clock_params.reference_divider;
451 pll_settings->pix_clk_post_divider =
452 bp_adjust_pixel_clock_params.pixel_clock_post_divider;
453
454 return true;
455 }
456
457 return false;
458 }
459
460 /*
461 * Calculate PLL Dividers for given Clock Value.
462 * First will call VBIOS Adjust Exec table to check if requested Pixel clock
463 * will be Adjusted based on usage.
464 * Then it will calculate PLL Dividers for this Adjusted clock using preferred
465 * method (Maximum VCO frequency).
466 *
467 * \return
468 * Calculation error in units of 0.01%
469 */
470
dce110_get_pix_clk_dividers_helper(struct dce110_clk_src * clk_src,struct pll_settings * pll_settings,struct pixel_clk_params * pix_clk_params)471 static uint32_t dce110_get_pix_clk_dividers_helper (
472 struct dce110_clk_src *clk_src,
473 struct pll_settings *pll_settings,
474 struct pixel_clk_params *pix_clk_params)
475 {
476 uint32_t field = 0;
477 uint32_t pll_calc_error = MAX_PLL_CALC_ERROR;
478 DC_LOGGER_INIT();
479 /* Check if reference clock is external (not pcie/xtalin)
480 * HW Dce80 spec:
481 * 00 - PCIE_REFCLK, 01 - XTALIN, 02 - GENERICA, 03 - GENERICB
482 * 04 - HSYNCA, 05 - GENLK_CLK, 06 - PCIE_REFCLK, 07 - DVOCLK0 */
483 REG_GET(PLL_CNTL, PLL_REF_DIV_SRC, &field);
484 pll_settings->use_external_clk = (field > 1);
485
486 /* VBIOS by default enables DP SS (spread on IDCLK) for DCE 8.0 always
487 * (we do not care any more from SI for some older DP Sink which
488 * does not report SS support, no known issues) */
489 if ((pix_clk_params->flags.ENABLE_SS) ||
490 (dc_is_dp_signal(pix_clk_params->signal_type))) {
491
492 const struct spread_spectrum_data *ss_data = get_ss_data_entry(
493 clk_src,
494 pix_clk_params->signal_type,
495 pll_settings->adjusted_pix_clk_100hz / 10);
496
497 if (NULL != ss_data)
498 pll_settings->ss_percentage = ss_data->percentage;
499 }
500
501 /* Check VBIOS AdjustPixelClock Exec table */
502 if (!pll_adjust_pix_clk(clk_src, pix_clk_params, pll_settings)) {
503 /* Should never happen, ASSERT and fill up values to be able
504 * to continue. */
505 DC_LOG_ERROR(
506 "%s: Failed to adjust pixel clock!!", __func__);
507 pll_settings->actual_pix_clk_100hz =
508 pix_clk_params->requested_pix_clk_100hz;
509 pll_settings->adjusted_pix_clk_100hz =
510 pix_clk_params->requested_pix_clk_100hz;
511
512 if (dc_is_dp_signal(pix_clk_params->signal_type))
513 pll_settings->adjusted_pix_clk_100hz = 1000000;
514 }
515
516 /* Calculate Dividers */
517 if (pix_clk_params->signal_type == SIGNAL_TYPE_HDMI_TYPE_A)
518 /*Calculate Dividers by HDMI object, no SS case or SS case */
519 pll_calc_error =
520 calculate_pixel_clock_pll_dividers(
521 &clk_src->calc_pll_hdmi,
522 pll_settings);
523 else
524 /*Calculate Dividers by default object, no SS case or SS case */
525 pll_calc_error =
526 calculate_pixel_clock_pll_dividers(
527 &clk_src->calc_pll,
528 pll_settings);
529
530 return pll_calc_error;
531 }
532
dce112_get_pix_clk_dividers_helper(struct dce110_clk_src * clk_src,struct pll_settings * pll_settings,struct pixel_clk_params * pix_clk_params)533 static void dce112_get_pix_clk_dividers_helper (
534 struct dce110_clk_src *clk_src,
535 struct pll_settings *pll_settings,
536 struct pixel_clk_params *pix_clk_params)
537 {
538 uint32_t actual_pixel_clock_100hz;
539
540 actual_pixel_clock_100hz = pix_clk_params->requested_pix_clk_100hz;
541 /* Calculate Dividers */
542 if (pix_clk_params->signal_type == SIGNAL_TYPE_HDMI_TYPE_A) {
543 switch (pix_clk_params->color_depth) {
544 case COLOR_DEPTH_101010:
545 actual_pixel_clock_100hz = (actual_pixel_clock_100hz * 5) >> 2;
546 actual_pixel_clock_100hz -= actual_pixel_clock_100hz % 10;
547 break;
548 case COLOR_DEPTH_121212:
549 actual_pixel_clock_100hz = (actual_pixel_clock_100hz * 6) >> 2;
550 actual_pixel_clock_100hz -= actual_pixel_clock_100hz % 10;
551 break;
552 case COLOR_DEPTH_161616:
553 actual_pixel_clock_100hz = actual_pixel_clock_100hz * 2;
554 break;
555 default:
556 break;
557 }
558 }
559 pll_settings->actual_pix_clk_100hz = actual_pixel_clock_100hz;
560 pll_settings->adjusted_pix_clk_100hz = actual_pixel_clock_100hz;
561 pll_settings->calculated_pix_clk_100hz = pix_clk_params->requested_pix_clk_100hz;
562 }
563
dce110_get_pix_clk_dividers(struct clock_source * cs,struct pixel_clk_params * pix_clk_params,struct pll_settings * pll_settings)564 static uint32_t dce110_get_pix_clk_dividers(
565 struct clock_source *cs,
566 struct pixel_clk_params *pix_clk_params,
567 struct pll_settings *pll_settings)
568 {
569 struct dce110_clk_src *clk_src = TO_DCE110_CLK_SRC(cs);
570 uint32_t pll_calc_error = MAX_PLL_CALC_ERROR;
571 DC_LOGGER_INIT();
572
573 if (pix_clk_params == NULL || pll_settings == NULL
574 || pix_clk_params->requested_pix_clk_100hz == 0) {
575 DC_LOG_ERROR(
576 "%s: Invalid parameters!!\n", __func__);
577 return pll_calc_error;
578 }
579
580 memset(pll_settings, 0, sizeof(*pll_settings));
581
582 if (cs->id == CLOCK_SOURCE_ID_DP_DTO ||
583 cs->id == CLOCK_SOURCE_ID_EXTERNAL) {
584 pll_settings->adjusted_pix_clk_100hz = clk_src->ext_clk_khz * 10;
585 pll_settings->calculated_pix_clk_100hz = clk_src->ext_clk_khz * 10;
586 pll_settings->actual_pix_clk_100hz =
587 pix_clk_params->requested_pix_clk_100hz;
588 return 0;
589 }
590
591 pll_calc_error = dce110_get_pix_clk_dividers_helper(clk_src,
592 pll_settings, pix_clk_params);
593
594 return pll_calc_error;
595 }
596
dce112_get_pix_clk_dividers(struct clock_source * cs,struct pixel_clk_params * pix_clk_params,struct pll_settings * pll_settings)597 static uint32_t dce112_get_pix_clk_dividers(
598 struct clock_source *cs,
599 struct pixel_clk_params *pix_clk_params,
600 struct pll_settings *pll_settings)
601 {
602 struct dce110_clk_src *clk_src = TO_DCE110_CLK_SRC(cs);
603 DC_LOGGER_INIT();
604
605 if (pix_clk_params == NULL || pll_settings == NULL
606 || pix_clk_params->requested_pix_clk_100hz == 0) {
607 DC_LOG_ERROR(
608 "%s: Invalid parameters!!\n", __func__);
609 return -1;
610 }
611
612 memset(pll_settings, 0, sizeof(*pll_settings));
613
614 if (cs->id == CLOCK_SOURCE_ID_DP_DTO ||
615 cs->id == CLOCK_SOURCE_ID_EXTERNAL) {
616 pll_settings->adjusted_pix_clk_100hz = clk_src->ext_clk_khz * 10;
617 pll_settings->calculated_pix_clk_100hz = clk_src->ext_clk_khz * 10;
618 pll_settings->actual_pix_clk_100hz =
619 pix_clk_params->requested_pix_clk_100hz;
620 return -1;
621 }
622
623 dce112_get_pix_clk_dividers_helper(clk_src,
624 pll_settings, pix_clk_params);
625
626 return 0;
627 }
628
disable_spread_spectrum(struct dce110_clk_src * clk_src)629 static bool disable_spread_spectrum(struct dce110_clk_src *clk_src)
630 {
631 enum bp_result result;
632 struct bp_spread_spectrum_parameters bp_ss_params = {0};
633
634 bp_ss_params.pll_id = clk_src->base.id;
635
636 /*Call ASICControl to process ATOMBIOS Exec table*/
637 result = clk_src->bios->funcs->enable_spread_spectrum_on_ppll(
638 clk_src->bios,
639 &bp_ss_params,
640 false);
641
642 return result == BP_RESULT_OK;
643 }
644
calculate_ss(const struct pll_settings * pll_settings,const struct spread_spectrum_data * ss_data,struct delta_sigma_data * ds_data)645 static bool calculate_ss(
646 const struct pll_settings *pll_settings,
647 const struct spread_spectrum_data *ss_data,
648 struct delta_sigma_data *ds_data)
649 {
650 struct fixed31_32 fb_div;
651 struct fixed31_32 ss_amount;
652 struct fixed31_32 ss_nslip_amount;
653 struct fixed31_32 ss_ds_frac_amount;
654 struct fixed31_32 ss_step_size;
655 struct fixed31_32 modulation_time;
656
657 if (ds_data == NULL)
658 return false;
659 if (ss_data == NULL)
660 return false;
661 if (ss_data->percentage == 0)
662 return false;
663 if (pll_settings == NULL)
664 return false;
665
666 memset(ds_data, 0, sizeof(struct delta_sigma_data));
667
668 /* compute SS_AMOUNT_FBDIV & SS_AMOUNT_NFRAC_SLIP & SS_AMOUNT_DSFRAC*/
669 /* 6 decimal point support in fractional feedback divider */
670 fb_div = dc_fixpt_from_fraction(
671 pll_settings->fract_feedback_divider, 1000000);
672 fb_div = dc_fixpt_add_int(fb_div, pll_settings->feedback_divider);
673
674 ds_data->ds_frac_amount = 0;
675 /*spreadSpectrumPercentage is in the unit of .01%,
676 * so have to divided by 100 * 100*/
677 ss_amount = dc_fixpt_mul(
678 fb_div, dc_fixpt_from_fraction(ss_data->percentage,
679 100 * ss_data->percentage_divider));
680 ds_data->feedback_amount = dc_fixpt_floor(ss_amount);
681
682 ss_nslip_amount = dc_fixpt_sub(ss_amount,
683 dc_fixpt_from_int(ds_data->feedback_amount));
684 ss_nslip_amount = dc_fixpt_mul_int(ss_nslip_amount, 10);
685 ds_data->nfrac_amount = dc_fixpt_floor(ss_nslip_amount);
686
687 ss_ds_frac_amount = dc_fixpt_sub(ss_nslip_amount,
688 dc_fixpt_from_int(ds_data->nfrac_amount));
689 ss_ds_frac_amount = dc_fixpt_mul_int(ss_ds_frac_amount, 65536);
690 ds_data->ds_frac_amount = dc_fixpt_floor(ss_ds_frac_amount);
691
692 /* compute SS_STEP_SIZE_DSFRAC */
693 modulation_time = dc_fixpt_from_fraction(
694 pll_settings->reference_freq * 1000,
695 pll_settings->reference_divider * ss_data->modulation_freq_hz);
696
697 if (ss_data->flags.CENTER_SPREAD)
698 modulation_time = dc_fixpt_div_int(modulation_time, 4);
699 else
700 modulation_time = dc_fixpt_div_int(modulation_time, 2);
701
702 ss_step_size = dc_fixpt_div(ss_amount, modulation_time);
703 /* SS_STEP_SIZE_DSFRAC_DEC = Int(SS_STEP_SIZE * 2 ^ 16 * 10)*/
704 ss_step_size = dc_fixpt_mul_int(ss_step_size, 65536 * 10);
705 ds_data->ds_frac_size = dc_fixpt_floor(ss_step_size);
706
707 return true;
708 }
709
enable_spread_spectrum(struct dce110_clk_src * clk_src,enum signal_type signal,struct pll_settings * pll_settings)710 static bool enable_spread_spectrum(
711 struct dce110_clk_src *clk_src,
712 enum signal_type signal, struct pll_settings *pll_settings)
713 {
714 struct bp_spread_spectrum_parameters bp_params = {0};
715 struct delta_sigma_data d_s_data;
716 const struct spread_spectrum_data *ss_data = NULL;
717
718 ss_data = get_ss_data_entry(
719 clk_src,
720 signal,
721 pll_settings->calculated_pix_clk_100hz / 10);
722
723 /* Pixel clock PLL has been programmed to generate desired pixel clock,
724 * now enable SS on pixel clock */
725 /* TODO is it OK to return true not doing anything ??*/
726 if (ss_data != NULL && pll_settings->ss_percentage != 0) {
727 if (calculate_ss(pll_settings, ss_data, &d_s_data)) {
728 bp_params.ds.feedback_amount =
729 d_s_data.feedback_amount;
730 bp_params.ds.nfrac_amount =
731 d_s_data.nfrac_amount;
732 bp_params.ds.ds_frac_size = d_s_data.ds_frac_size;
733 bp_params.ds_frac_amount =
734 d_s_data.ds_frac_amount;
735 bp_params.flags.DS_TYPE = 1;
736 bp_params.pll_id = clk_src->base.id;
737 bp_params.percentage = ss_data->percentage;
738 if (ss_data->flags.CENTER_SPREAD)
739 bp_params.flags.CENTER_SPREAD = 1;
740 if (ss_data->flags.EXTERNAL_SS)
741 bp_params.flags.EXTERNAL_SS = 1;
742
743 if (BP_RESULT_OK !=
744 clk_src->bios->funcs->
745 enable_spread_spectrum_on_ppll(
746 clk_src->bios,
747 &bp_params,
748 true))
749 return false;
750 } else
751 return false;
752 }
753 return true;
754 }
755
dce110_program_pixel_clk_resync(struct dce110_clk_src * clk_src,enum signal_type signal_type,enum dc_color_depth colordepth)756 static void dce110_program_pixel_clk_resync(
757 struct dce110_clk_src *clk_src,
758 enum signal_type signal_type,
759 enum dc_color_depth colordepth)
760 {
761 REG_UPDATE(RESYNC_CNTL,
762 DCCG_DEEP_COLOR_CNTL1, 0);
763 /*
764 24 bit mode: TMDS clock = 1.0 x pixel clock (1:1)
765 30 bit mode: TMDS clock = 1.25 x pixel clock (5:4)
766 36 bit mode: TMDS clock = 1.5 x pixel clock (3:2)
767 48 bit mode: TMDS clock = 2 x pixel clock (2:1)
768 */
769 if (signal_type != SIGNAL_TYPE_HDMI_TYPE_A)
770 return;
771
772 switch (colordepth) {
773 case COLOR_DEPTH_888:
774 REG_UPDATE(RESYNC_CNTL,
775 DCCG_DEEP_COLOR_CNTL1, 0);
776 break;
777 case COLOR_DEPTH_101010:
778 REG_UPDATE(RESYNC_CNTL,
779 DCCG_DEEP_COLOR_CNTL1, 1);
780 break;
781 case COLOR_DEPTH_121212:
782 REG_UPDATE(RESYNC_CNTL,
783 DCCG_DEEP_COLOR_CNTL1, 2);
784 break;
785 case COLOR_DEPTH_161616:
786 REG_UPDATE(RESYNC_CNTL,
787 DCCG_DEEP_COLOR_CNTL1, 3);
788 break;
789 default:
790 break;
791 }
792 }
793
dce112_program_pixel_clk_resync(struct dce110_clk_src * clk_src,enum signal_type signal_type,enum dc_color_depth colordepth,bool enable_ycbcr420)794 static void dce112_program_pixel_clk_resync(
795 struct dce110_clk_src *clk_src,
796 enum signal_type signal_type,
797 enum dc_color_depth colordepth,
798 bool enable_ycbcr420)
799 {
800 uint32_t deep_color_cntl = 0;
801 uint32_t double_rate_enable = 0;
802
803 /*
804 24 bit mode: TMDS clock = 1.0 x pixel clock (1:1)
805 30 bit mode: TMDS clock = 1.25 x pixel clock (5:4)
806 36 bit mode: TMDS clock = 1.5 x pixel clock (3:2)
807 48 bit mode: TMDS clock = 2 x pixel clock (2:1)
808 */
809 if (signal_type == SIGNAL_TYPE_HDMI_TYPE_A) {
810 double_rate_enable = enable_ycbcr420 ? 1 : 0;
811
812 switch (colordepth) {
813 case COLOR_DEPTH_888:
814 deep_color_cntl = 0;
815 break;
816 case COLOR_DEPTH_101010:
817 deep_color_cntl = 1;
818 break;
819 case COLOR_DEPTH_121212:
820 deep_color_cntl = 2;
821 break;
822 case COLOR_DEPTH_161616:
823 deep_color_cntl = 3;
824 break;
825 default:
826 break;
827 }
828 }
829
830 if (clk_src->cs_mask->PHYPLLA_PIXCLK_DOUBLE_RATE_ENABLE)
831 REG_UPDATE_2(PIXCLK_RESYNC_CNTL,
832 PHYPLLA_DCCG_DEEP_COLOR_CNTL, deep_color_cntl,
833 PHYPLLA_PIXCLK_DOUBLE_RATE_ENABLE, double_rate_enable);
834 else
835 REG_UPDATE(PIXCLK_RESYNC_CNTL,
836 PHYPLLA_DCCG_DEEP_COLOR_CNTL, deep_color_cntl);
837
838 }
839
dce110_program_pix_clk(struct clock_source * clock_source,struct pixel_clk_params * pix_clk_params,enum dp_link_encoding encoding,struct pll_settings * pll_settings)840 static bool dce110_program_pix_clk(
841 struct clock_source *clock_source,
842 struct pixel_clk_params *pix_clk_params,
843 enum dp_link_encoding encoding,
844 struct pll_settings *pll_settings)
845 {
846 struct dce110_clk_src *clk_src = TO_DCE110_CLK_SRC(clock_source);
847 struct bp_pixel_clock_parameters bp_pc_params = {0};
848
849 /* First disable SS
850 * ATOMBIOS will enable by default SS on PLL for DP,
851 * do not disable it here
852 */
853 if (clock_source->id != CLOCK_SOURCE_ID_EXTERNAL &&
854 !dc_is_dp_signal(pix_clk_params->signal_type) &&
855 clock_source->ctx->dce_version <= DCE_VERSION_11_0)
856 disable_spread_spectrum(clk_src);
857
858 /*ATOMBIOS expects pixel rate adjusted by deep color ratio)*/
859 bp_pc_params.controller_id = pix_clk_params->controller_id;
860 bp_pc_params.pll_id = clock_source->id;
861 bp_pc_params.target_pixel_clock_100hz = pll_settings->actual_pix_clk_100hz;
862 bp_pc_params.encoder_object_id = pix_clk_params->encoder_object_id;
863 bp_pc_params.signal_type = pix_clk_params->signal_type;
864
865 bp_pc_params.reference_divider = pll_settings->reference_divider;
866 bp_pc_params.feedback_divider = pll_settings->feedback_divider;
867 bp_pc_params.fractional_feedback_divider =
868 pll_settings->fract_feedback_divider;
869 bp_pc_params.pixel_clock_post_divider =
870 pll_settings->pix_clk_post_divider;
871 bp_pc_params.flags.SET_EXTERNAL_REF_DIV_SRC =
872 pll_settings->use_external_clk;
873
874 switch (pix_clk_params->color_depth) {
875 case COLOR_DEPTH_101010:
876 bp_pc_params.color_depth = TRANSMITTER_COLOR_DEPTH_30;
877 break;
878 case COLOR_DEPTH_121212:
879 bp_pc_params.color_depth = TRANSMITTER_COLOR_DEPTH_36;
880 break;
881 case COLOR_DEPTH_161616:
882 bp_pc_params.color_depth = TRANSMITTER_COLOR_DEPTH_48;
883 break;
884 default:
885 break;
886 }
887
888 if (clk_src->bios->funcs->set_pixel_clock(
889 clk_src->bios, &bp_pc_params) != BP_RESULT_OK)
890 return false;
891 /* Enable SS
892 * ATOMBIOS will enable by default SS for DP on PLL ( DP ID clock),
893 * based on HW display PLL team, SS control settings should be programmed
894 * during PLL Reset, but they do not have effect
895 * until SS_EN is asserted.*/
896 if (clock_source->id != CLOCK_SOURCE_ID_EXTERNAL
897 && !dc_is_dp_signal(pix_clk_params->signal_type)) {
898
899 if (pix_clk_params->flags.ENABLE_SS)
900 if (!enable_spread_spectrum(clk_src,
901 pix_clk_params->signal_type,
902 pll_settings))
903 return false;
904
905 /* Resync deep color DTO */
906 dce110_program_pixel_clk_resync(clk_src,
907 pix_clk_params->signal_type,
908 pix_clk_params->color_depth);
909 }
910
911 return true;
912 }
913
dce112_program_pix_clk(struct clock_source * clock_source,struct pixel_clk_params * pix_clk_params,enum dp_link_encoding encoding,struct pll_settings * pll_settings)914 static bool dce112_program_pix_clk(
915 struct clock_source *clock_source,
916 struct pixel_clk_params *pix_clk_params,
917 enum dp_link_encoding encoding,
918 struct pll_settings *pll_settings)
919 {
920 struct dce110_clk_src *clk_src = TO_DCE110_CLK_SRC(clock_source);
921 struct bp_pixel_clock_parameters bp_pc_params = {0};
922
923 /* First disable SS
924 * ATOMBIOS will enable by default SS on PLL for DP,
925 * do not disable it here
926 */
927 if (clock_source->id != CLOCK_SOURCE_ID_EXTERNAL &&
928 !dc_is_dp_signal(pix_clk_params->signal_type) &&
929 clock_source->ctx->dce_version <= DCE_VERSION_11_0)
930 disable_spread_spectrum(clk_src);
931
932 /*ATOMBIOS expects pixel rate adjusted by deep color ratio)*/
933 bp_pc_params.controller_id = pix_clk_params->controller_id;
934 bp_pc_params.pll_id = clock_source->id;
935 bp_pc_params.target_pixel_clock_100hz = pll_settings->actual_pix_clk_100hz;
936 bp_pc_params.encoder_object_id = pix_clk_params->encoder_object_id;
937 bp_pc_params.signal_type = pix_clk_params->signal_type;
938
939 if (clock_source->id != CLOCK_SOURCE_ID_DP_DTO) {
940 bp_pc_params.flags.SET_GENLOCK_REF_DIV_SRC =
941 pll_settings->use_external_clk;
942 bp_pc_params.flags.SET_XTALIN_REF_SRC =
943 !pll_settings->use_external_clk;
944 if (pix_clk_params->flags.SUPPORT_YCBCR420) {
945 bp_pc_params.flags.SUPPORT_YUV_420 = 1;
946 }
947 }
948 if (clk_src->bios->funcs->set_pixel_clock(
949 clk_src->bios, &bp_pc_params) != BP_RESULT_OK)
950 return false;
951 /* Resync deep color DTO */
952 if (clock_source->id != CLOCK_SOURCE_ID_DP_DTO)
953 dce112_program_pixel_clk_resync(clk_src,
954 pix_clk_params->signal_type,
955 pix_clk_params->color_depth,
956 pix_clk_params->flags.SUPPORT_YCBCR420);
957
958 return true;
959 }
960
dcn31_program_pix_clk(struct clock_source * clock_source,struct pixel_clk_params * pix_clk_params,enum dp_link_encoding encoding,struct pll_settings * pll_settings)961 static bool dcn31_program_pix_clk(
962 struct clock_source *clock_source,
963 struct pixel_clk_params *pix_clk_params,
964 enum dp_link_encoding encoding,
965 struct pll_settings *pll_settings)
966 {
967 struct dce110_clk_src *clk_src = TO_DCE110_CLK_SRC(clock_source);
968 unsigned int inst = pix_clk_params->controller_id - CONTROLLER_ID_D0;
969 unsigned int dp_dto_ref_khz = clock_source->ctx->dc->clk_mgr->dprefclk_khz;
970 const struct pixel_rate_range_table_entry *e =
971 look_up_in_video_optimized_rate_tlb(pix_clk_params->requested_pix_clk_100hz / 10);
972 struct bp_pixel_clock_parameters bp_pc_params = {0};
973 enum transmitter_color_depth bp_pc_colour_depth = TRANSMITTER_COLOR_DEPTH_24;
974 // For these signal types Driver to program DP_DTO without calling VBIOS Command table
975 if (dc_is_dp_signal(pix_clk_params->signal_type) || dc_is_virtual_signal(pix_clk_params->signal_type)) {
976 if (e) {
977 /* Set DTO values: phase = target clock, modulo = reference clock*/
978 REG_WRITE(PHASE[inst], e->target_pixel_rate_khz * e->mult_factor);
979 REG_WRITE(MODULO[inst], dp_dto_ref_khz * e->div_factor);
980 } else {
981 /* Set DTO values: phase = target clock, modulo = reference clock*/
982 REG_WRITE(PHASE[inst], pll_settings->actual_pix_clk_100hz * 100);
983 REG_WRITE(MODULO[inst], dp_dto_ref_khz * 1000);
984 }
985 /* Enable DTO */
986 if (clk_src->cs_mask->PIPE0_DTO_SRC_SEL)
987 if (encoding == DP_128b_132b_ENCODING)
988 REG_UPDATE_2(PIXEL_RATE_CNTL[inst],
989 DP_DTO0_ENABLE, 1,
990 PIPE0_DTO_SRC_SEL, 2);
991 else
992 REG_UPDATE_2(PIXEL_RATE_CNTL[inst],
993 DP_DTO0_ENABLE, 1,
994 PIPE0_DTO_SRC_SEL, 1);
995 else
996 REG_UPDATE(PIXEL_RATE_CNTL[inst],
997 DP_DTO0_ENABLE, 1);
998 } else {
999
1000 if (clk_src->cs_mask->PIPE0_DTO_SRC_SEL)
1001 REG_UPDATE(PIXEL_RATE_CNTL[inst],
1002 PIPE0_DTO_SRC_SEL, 0);
1003
1004 /*ATOMBIOS expects pixel rate adjusted by deep color ratio)*/
1005 bp_pc_params.controller_id = pix_clk_params->controller_id;
1006 bp_pc_params.pll_id = clock_source->id;
1007 bp_pc_params.target_pixel_clock_100hz = pll_settings->actual_pix_clk_100hz;
1008 bp_pc_params.encoder_object_id = pix_clk_params->encoder_object_id;
1009 bp_pc_params.signal_type = pix_clk_params->signal_type;
1010
1011 // Make sure we send the correct color depth to DMUB for HDMI
1012 if (pix_clk_params->signal_type == SIGNAL_TYPE_HDMI_TYPE_A) {
1013 switch (pix_clk_params->color_depth) {
1014 case COLOR_DEPTH_888:
1015 bp_pc_colour_depth = TRANSMITTER_COLOR_DEPTH_24;
1016 break;
1017 case COLOR_DEPTH_101010:
1018 bp_pc_colour_depth = TRANSMITTER_COLOR_DEPTH_30;
1019 break;
1020 case COLOR_DEPTH_121212:
1021 bp_pc_colour_depth = TRANSMITTER_COLOR_DEPTH_36;
1022 break;
1023 case COLOR_DEPTH_161616:
1024 bp_pc_colour_depth = TRANSMITTER_COLOR_DEPTH_48;
1025 break;
1026 default:
1027 bp_pc_colour_depth = TRANSMITTER_COLOR_DEPTH_24;
1028 break;
1029 }
1030 bp_pc_params.color_depth = bp_pc_colour_depth;
1031 }
1032
1033 if (clock_source->id != CLOCK_SOURCE_ID_DP_DTO) {
1034 bp_pc_params.flags.SET_GENLOCK_REF_DIV_SRC =
1035 pll_settings->use_external_clk;
1036 bp_pc_params.flags.SET_XTALIN_REF_SRC =
1037 !pll_settings->use_external_clk;
1038 if (pix_clk_params->flags.SUPPORT_YCBCR420) {
1039 bp_pc_params.flags.SUPPORT_YUV_420 = 1;
1040 }
1041 }
1042 if (clk_src->bios->funcs->set_pixel_clock(
1043 clk_src->bios, &bp_pc_params) != BP_RESULT_OK)
1044 return false;
1045 /* Resync deep color DTO */
1046 if (clock_source->id != CLOCK_SOURCE_ID_DP_DTO)
1047 dce112_program_pixel_clk_resync(clk_src,
1048 pix_clk_params->signal_type,
1049 pix_clk_params->color_depth,
1050 pix_clk_params->flags.SUPPORT_YCBCR420);
1051 }
1052
1053 return true;
1054 }
1055
dce110_clock_source_power_down(struct clock_source * clk_src)1056 static bool dce110_clock_source_power_down(
1057 struct clock_source *clk_src)
1058 {
1059 struct dce110_clk_src *dce110_clk_src = TO_DCE110_CLK_SRC(clk_src);
1060 enum bp_result bp_result;
1061 struct bp_pixel_clock_parameters bp_pixel_clock_params = {0};
1062
1063 if (clk_src->dp_clk_src)
1064 return true;
1065
1066 /* If Pixel Clock is 0 it means Power Down Pll*/
1067 bp_pixel_clock_params.controller_id = CONTROLLER_ID_UNDEFINED;
1068 bp_pixel_clock_params.pll_id = clk_src->id;
1069 bp_pixel_clock_params.flags.FORCE_PROGRAMMING_OF_PLL = 1;
1070
1071 /*Call ASICControl to process ATOMBIOS Exec table*/
1072 bp_result = dce110_clk_src->bios->funcs->set_pixel_clock(
1073 dce110_clk_src->bios,
1074 &bp_pixel_clock_params);
1075
1076 return bp_result == BP_RESULT_OK;
1077 }
1078
get_pixel_clk_frequency_100hz(const struct clock_source * clock_source,unsigned int inst,unsigned int * pixel_clk_khz)1079 static bool get_pixel_clk_frequency_100hz(
1080 const struct clock_source *clock_source,
1081 unsigned int inst,
1082 unsigned int *pixel_clk_khz)
1083 {
1084 struct dce110_clk_src *clk_src = TO_DCE110_CLK_SRC(clock_source);
1085 unsigned int clock_hz = 0;
1086 unsigned int modulo_hz = 0;
1087
1088 if (clock_source->id == CLOCK_SOURCE_ID_DP_DTO) {
1089 clock_hz = REG_READ(PHASE[inst]);
1090
1091 if (clock_source->ctx->dc->hwss.enable_vblanks_synchronization &&
1092 clock_source->ctx->dc->config.vblank_alignment_max_frame_time_diff > 0) {
1093 /* NOTE: In case VBLANK syncronization is enabled, MODULO may
1094 * not be programmed equal to DPREFCLK
1095 */
1096 modulo_hz = REG_READ(MODULO[inst]);
1097 if (modulo_hz)
1098 *pixel_clk_khz = div_u64((uint64_t)clock_hz*
1099 clock_source->ctx->dc->clk_mgr->dprefclk_khz*10,
1100 modulo_hz);
1101 else
1102 *pixel_clk_khz = 0;
1103 } else {
1104 /* NOTE: There is agreement with VBIOS here that MODULO is
1105 * programmed equal to DPREFCLK, in which case PHASE will be
1106 * equivalent to pixel clock.
1107 */
1108 *pixel_clk_khz = clock_hz / 100;
1109 }
1110 return true;
1111 }
1112
1113 return false;
1114 }
1115
1116 /* this table is use to find *1.001 and /1.001 pixel rates from non-precise pixel rate */
1117 const struct pixel_rate_range_table_entry video_optimized_pixel_rates[] = {
1118 // /1.001 rates
1119 {25170, 25180, 25200, 1000, 1001}, //25.2MHz -> 25.17
1120 {59340, 59350, 59400, 1000, 1001}, //59.4Mhz -> 59.340
1121 {74170, 74180, 74250, 1000, 1001}, //74.25Mhz -> 74.1758
1122 {89910, 90000, 90000, 1000, 1001}, //90Mhz -> 89.91
1123 {125870, 125880, 126000, 1000, 1001}, //126Mhz -> 125.87
1124 {148350, 148360, 148500, 1000, 1001}, //148.5Mhz -> 148.3516
1125 {167830, 167840, 168000, 1000, 1001}, //168Mhz -> 167.83
1126 {222520, 222530, 222750, 1000, 1001}, //222.75Mhz -> 222.527
1127 {257140, 257150, 257400, 1000, 1001}, //257.4Mhz -> 257.1429
1128 {296700, 296710, 297000, 1000, 1001}, //297Mhz -> 296.7033
1129 {342850, 342860, 343200, 1000, 1001}, //343.2Mhz -> 342.857
1130 {395600, 395610, 396000, 1000, 1001}, //396Mhz -> 395.6
1131 {409090, 409100, 409500, 1000, 1001}, //409.5Mhz -> 409.091
1132 {445050, 445060, 445500, 1000, 1001}, //445.5Mhz -> 445.055
1133 {467530, 467540, 468000, 1000, 1001}, //468Mhz -> 467.5325
1134 {519230, 519240, 519750, 1000, 1001}, //519.75Mhz -> 519.231
1135 {525970, 525980, 526500, 1000, 1001}, //526.5Mhz -> 525.974
1136 {545450, 545460, 546000, 1000, 1001}, //546Mhz -> 545.455
1137 {593400, 593410, 594000, 1000, 1001}, //594Mhz -> 593.4066
1138 {623370, 623380, 624000, 1000, 1001}, //624Mhz -> 623.377
1139 {692300, 692310, 693000, 1000, 1001}, //693Mhz -> 692.308
1140 {701290, 701300, 702000, 1000, 1001}, //702Mhz -> 701.2987
1141 {791200, 791210, 792000, 1000, 1001}, //792Mhz -> 791.209
1142 {890100, 890110, 891000, 1000, 1001}, //891Mhz -> 890.1099
1143 {1186810, 1186820, 1188000, 1000, 1001},//1188Mhz -> 1186.8131
1144
1145 // *1.001 rates
1146 {27020, 27030, 27000, 1001, 1000}, //27Mhz
1147 {54050, 54060, 54000, 1001, 1000}, //54Mhz
1148 {108100, 108110, 108000, 1001, 1000},//108Mhz
1149 };
1150
look_up_in_video_optimized_rate_tlb(unsigned int pixel_rate_khz)1151 const struct pixel_rate_range_table_entry *look_up_in_video_optimized_rate_tlb(
1152 unsigned int pixel_rate_khz)
1153 {
1154 int i;
1155
1156 for (i = 0; i < NUM_ELEMENTS(video_optimized_pixel_rates); i++) {
1157 const struct pixel_rate_range_table_entry *e = &video_optimized_pixel_rates[i];
1158
1159 if (e->range_min_khz <= pixel_rate_khz && pixel_rate_khz <= e->range_max_khz) {
1160 return e;
1161 }
1162 }
1163
1164 return NULL;
1165 }
1166
dcn20_program_pix_clk(struct clock_source * clock_source,struct pixel_clk_params * pix_clk_params,enum dp_link_encoding encoding,struct pll_settings * pll_settings)1167 static bool dcn20_program_pix_clk(
1168 struct clock_source *clock_source,
1169 struct pixel_clk_params *pix_clk_params,
1170 enum dp_link_encoding encoding,
1171 struct pll_settings *pll_settings)
1172 {
1173 struct dce110_clk_src *clk_src = TO_DCE110_CLK_SRC(clock_source);
1174 unsigned int inst = pix_clk_params->controller_id - CONTROLLER_ID_D0;
1175
1176 dce112_program_pix_clk(clock_source, pix_clk_params, encoding, pll_settings);
1177
1178 if (clock_source->ctx->dc->hwss.enable_vblanks_synchronization &&
1179 clock_source->ctx->dc->config.vblank_alignment_max_frame_time_diff > 0) {
1180 /* NOTE: In case VBLANK syncronization is enabled,
1181 * we need to set modulo to default DPREFCLK first
1182 * dce112_program_pix_clk does not set default DPREFCLK
1183 */
1184 REG_WRITE(MODULO[inst],
1185 clock_source->ctx->dc->clk_mgr->dprefclk_khz*1000);
1186 }
1187 return true;
1188 }
1189
dcn20_override_dp_pix_clk(struct clock_source * clock_source,unsigned int inst,unsigned int pixel_clk,unsigned int ref_clk)1190 static bool dcn20_override_dp_pix_clk(
1191 struct clock_source *clock_source,
1192 unsigned int inst,
1193 unsigned int pixel_clk,
1194 unsigned int ref_clk)
1195 {
1196 struct dce110_clk_src *clk_src = TO_DCE110_CLK_SRC(clock_source);
1197
1198 REG_UPDATE(PIXEL_RATE_CNTL[inst], DP_DTO0_ENABLE, 0);
1199 REG_WRITE(PHASE[inst], pixel_clk);
1200 REG_WRITE(MODULO[inst], ref_clk);
1201 REG_UPDATE(PIXEL_RATE_CNTL[inst], DP_DTO0_ENABLE, 1);
1202 return true;
1203 }
1204
1205 static const struct clock_source_funcs dcn20_clk_src_funcs = {
1206 .cs_power_down = dce110_clock_source_power_down,
1207 .program_pix_clk = dcn20_program_pix_clk,
1208 .get_pix_clk_dividers = dce112_get_pix_clk_dividers,
1209 .get_pixel_clk_frequency_100hz = get_pixel_clk_frequency_100hz,
1210 .override_dp_pix_clk = dcn20_override_dp_pix_clk
1211 };
1212
dcn3_program_pix_clk(struct clock_source * clock_source,struct pixel_clk_params * pix_clk_params,enum dp_link_encoding encoding,struct pll_settings * pll_settings)1213 static bool dcn3_program_pix_clk(
1214 struct clock_source *clock_source,
1215 struct pixel_clk_params *pix_clk_params,
1216 enum dp_link_encoding encoding,
1217 struct pll_settings *pll_settings)
1218 {
1219 struct dce110_clk_src *clk_src = TO_DCE110_CLK_SRC(clock_source);
1220 unsigned int inst = pix_clk_params->controller_id - CONTROLLER_ID_D0;
1221 unsigned int dp_dto_ref_khz = clock_source->ctx->dc->clk_mgr->dprefclk_khz;
1222 const struct pixel_rate_range_table_entry *e =
1223 look_up_in_video_optimized_rate_tlb(pix_clk_params->requested_pix_clk_100hz / 10);
1224
1225 // For these signal types Driver to program DP_DTO without calling VBIOS Command table
1226 if (dc_is_dp_signal(pix_clk_params->signal_type)) {
1227 if (e) {
1228 /* Set DTO values: phase = target clock, modulo = reference clock*/
1229 REG_WRITE(PHASE[inst], e->target_pixel_rate_khz * e->mult_factor);
1230 REG_WRITE(MODULO[inst], dp_dto_ref_khz * e->div_factor);
1231 } else {
1232 /* Set DTO values: phase = target clock, modulo = reference clock*/
1233 REG_WRITE(PHASE[inst], pll_settings->actual_pix_clk_100hz * 100);
1234 REG_WRITE(MODULO[inst], dp_dto_ref_khz * 1000);
1235 }
1236 /* Enable DTO */
1237 if (clk_src->cs_mask->PIPE0_DTO_SRC_SEL)
1238 REG_UPDATE_2(PIXEL_RATE_CNTL[inst],
1239 DP_DTO0_ENABLE, 1,
1240 PIPE0_DTO_SRC_SEL, 1);
1241 else
1242 REG_UPDATE(PIXEL_RATE_CNTL[inst],
1243 DP_DTO0_ENABLE, 1);
1244 } else
1245 // For other signal types(HDMI_TYPE_A, DVI) Driver still to call VBIOS Command table
1246 dce112_program_pix_clk(clock_source, pix_clk_params, encoding, pll_settings);
1247
1248 return true;
1249 }
1250
dcn3_get_pix_clk_dividers(struct clock_source * cs,struct pixel_clk_params * pix_clk_params,struct pll_settings * pll_settings)1251 static uint32_t dcn3_get_pix_clk_dividers(
1252 struct clock_source *cs,
1253 struct pixel_clk_params *pix_clk_params,
1254 struct pll_settings *pll_settings)
1255 {
1256 unsigned long long actual_pix_clk_100Hz = pix_clk_params ? pix_clk_params->requested_pix_clk_100hz : 0;
1257
1258 DC_LOGGER_INIT();
1259
1260 if (pix_clk_params == NULL || pll_settings == NULL
1261 || pix_clk_params->requested_pix_clk_100hz == 0) {
1262 DC_LOG_ERROR(
1263 "%s: Invalid parameters!!\n", __func__);
1264 return -1;
1265 }
1266
1267 memset(pll_settings, 0, sizeof(*pll_settings));
1268 /* Adjust for HDMI Type A deep color */
1269 if (pix_clk_params->signal_type == SIGNAL_TYPE_HDMI_TYPE_A) {
1270 switch (pix_clk_params->color_depth) {
1271 case COLOR_DEPTH_101010:
1272 actual_pix_clk_100Hz = (actual_pix_clk_100Hz * 5) >> 2;
1273 break;
1274 case COLOR_DEPTH_121212:
1275 actual_pix_clk_100Hz = (actual_pix_clk_100Hz * 6) >> 2;
1276 break;
1277 case COLOR_DEPTH_161616:
1278 actual_pix_clk_100Hz = actual_pix_clk_100Hz * 2;
1279 break;
1280 default:
1281 break;
1282 }
1283 }
1284 pll_settings->actual_pix_clk_100hz = (unsigned int) actual_pix_clk_100Hz;
1285 pll_settings->adjusted_pix_clk_100hz = (unsigned int) actual_pix_clk_100Hz;
1286 pll_settings->calculated_pix_clk_100hz = (unsigned int) actual_pix_clk_100Hz;
1287
1288 return 0;
1289 }
1290
1291 static const struct clock_source_funcs dcn3_clk_src_funcs = {
1292 .cs_power_down = dce110_clock_source_power_down,
1293 .program_pix_clk = dcn3_program_pix_clk,
1294 .get_pix_clk_dividers = dcn3_get_pix_clk_dividers,
1295 .get_pixel_clk_frequency_100hz = get_pixel_clk_frequency_100hz
1296 };
1297
1298 static const struct clock_source_funcs dcn31_clk_src_funcs = {
1299 .cs_power_down = dce110_clock_source_power_down,
1300 .program_pix_clk = dcn31_program_pix_clk,
1301 .get_pix_clk_dividers = dcn3_get_pix_clk_dividers,
1302 .get_pixel_clk_frequency_100hz = get_pixel_clk_frequency_100hz
1303 };
1304
1305 /*****************************************/
1306 /* Constructor */
1307 /*****************************************/
1308
1309 static const struct clock_source_funcs dce112_clk_src_funcs = {
1310 .cs_power_down = dce110_clock_source_power_down,
1311 .program_pix_clk = dce112_program_pix_clk,
1312 .get_pix_clk_dividers = dce112_get_pix_clk_dividers,
1313 .get_pixel_clk_frequency_100hz = get_pixel_clk_frequency_100hz
1314 };
1315 static const struct clock_source_funcs dce110_clk_src_funcs = {
1316 .cs_power_down = dce110_clock_source_power_down,
1317 .program_pix_clk = dce110_program_pix_clk,
1318 .get_pix_clk_dividers = dce110_get_pix_clk_dividers,
1319 .get_pixel_clk_frequency_100hz = get_pixel_clk_frequency_100hz
1320 };
1321
1322
get_ss_info_from_atombios(struct dce110_clk_src * clk_src,enum as_signal_type as_signal,struct spread_spectrum_data * spread_spectrum_data[],uint32_t * ss_entries_num)1323 static void get_ss_info_from_atombios(
1324 struct dce110_clk_src *clk_src,
1325 enum as_signal_type as_signal,
1326 struct spread_spectrum_data *spread_spectrum_data[],
1327 uint32_t *ss_entries_num)
1328 {
1329 enum bp_result bp_result = BP_RESULT_FAILURE;
1330 struct spread_spectrum_info *ss_info;
1331 struct spread_spectrum_data *ss_data;
1332 struct spread_spectrum_info *ss_info_cur;
1333 struct spread_spectrum_data *ss_data_cur;
1334 uint32_t i;
1335 DC_LOGGER_INIT();
1336 if (ss_entries_num == NULL) {
1337 DC_LOG_SYNC(
1338 "Invalid entry !!!\n");
1339 return;
1340 }
1341 if (spread_spectrum_data == NULL) {
1342 DC_LOG_SYNC(
1343 "Invalid array pointer!!!\n");
1344 return;
1345 }
1346
1347 spread_spectrum_data[0] = NULL;
1348 *ss_entries_num = 0;
1349
1350 *ss_entries_num = clk_src->bios->funcs->get_ss_entry_number(
1351 clk_src->bios,
1352 as_signal);
1353
1354 if (*ss_entries_num == 0)
1355 return;
1356
1357 ss_info = kcalloc(*ss_entries_num,
1358 sizeof(struct spread_spectrum_info),
1359 GFP_KERNEL);
1360 ss_info_cur = ss_info;
1361 if (ss_info == NULL)
1362 return;
1363
1364 ss_data = kcalloc(*ss_entries_num,
1365 sizeof(struct spread_spectrum_data),
1366 GFP_KERNEL);
1367 if (ss_data == NULL)
1368 goto out_free_info;
1369
1370 for (i = 0, ss_info_cur = ss_info;
1371 i < (*ss_entries_num);
1372 ++i, ++ss_info_cur) {
1373
1374 bp_result = clk_src->bios->funcs->get_spread_spectrum_info(
1375 clk_src->bios,
1376 as_signal,
1377 i,
1378 ss_info_cur);
1379
1380 if (bp_result != BP_RESULT_OK)
1381 goto out_free_data;
1382 }
1383
1384 for (i = 0, ss_info_cur = ss_info, ss_data_cur = ss_data;
1385 i < (*ss_entries_num);
1386 ++i, ++ss_info_cur, ++ss_data_cur) {
1387
1388 if (ss_info_cur->type.STEP_AND_DELAY_INFO != false) {
1389 DC_LOG_SYNC(
1390 "Invalid ATOMBIOS SS Table!!!\n");
1391 goto out_free_data;
1392 }
1393
1394 /* for HDMI check SS percentage,
1395 * if it is > 6 (0.06%), the ATOMBIOS table info is invalid*/
1396 if (as_signal == AS_SIGNAL_TYPE_HDMI
1397 && ss_info_cur->spread_spectrum_percentage > 6){
1398 /* invalid input, do nothing */
1399 DC_LOG_SYNC(
1400 "Invalid SS percentage ");
1401 DC_LOG_SYNC(
1402 "for HDMI in ATOMBIOS info Table!!!\n");
1403 continue;
1404 }
1405 if (ss_info_cur->spread_percentage_divider == 1000) {
1406 /* Keep previous precision from ATOMBIOS for these
1407 * in case new precision set by ATOMBIOS for these
1408 * (otherwise all code in DCE specific classes
1409 * for all previous ASICs would need
1410 * to be updated for SS calculations,
1411 * Audio SS compensation and DP DTO SS compensation
1412 * which assumes fixed SS percentage Divider = 100)*/
1413 ss_info_cur->spread_spectrum_percentage /= 10;
1414 ss_info_cur->spread_percentage_divider = 100;
1415 }
1416
1417 ss_data_cur->freq_range_khz = ss_info_cur->target_clock_range;
1418 ss_data_cur->percentage =
1419 ss_info_cur->spread_spectrum_percentage;
1420 ss_data_cur->percentage_divider =
1421 ss_info_cur->spread_percentage_divider;
1422 ss_data_cur->modulation_freq_hz =
1423 ss_info_cur->spread_spectrum_range;
1424
1425 if (ss_info_cur->type.CENTER_MODE)
1426 ss_data_cur->flags.CENTER_SPREAD = 1;
1427
1428 if (ss_info_cur->type.EXTERNAL)
1429 ss_data_cur->flags.EXTERNAL_SS = 1;
1430
1431 }
1432
1433 *spread_spectrum_data = ss_data;
1434 kfree(ss_info);
1435 return;
1436
1437 out_free_data:
1438 kfree(ss_data);
1439 *ss_entries_num = 0;
1440 out_free_info:
1441 kfree(ss_info);
1442 }
1443
ss_info_from_atombios_create(struct dce110_clk_src * clk_src)1444 static void ss_info_from_atombios_create(
1445 struct dce110_clk_src *clk_src)
1446 {
1447 get_ss_info_from_atombios(
1448 clk_src,
1449 AS_SIGNAL_TYPE_DISPLAY_PORT,
1450 &clk_src->dp_ss_params,
1451 &clk_src->dp_ss_params_cnt);
1452 get_ss_info_from_atombios(
1453 clk_src,
1454 AS_SIGNAL_TYPE_HDMI,
1455 &clk_src->hdmi_ss_params,
1456 &clk_src->hdmi_ss_params_cnt);
1457 get_ss_info_from_atombios(
1458 clk_src,
1459 AS_SIGNAL_TYPE_DVI,
1460 &clk_src->dvi_ss_params,
1461 &clk_src->dvi_ss_params_cnt);
1462 get_ss_info_from_atombios(
1463 clk_src,
1464 AS_SIGNAL_TYPE_LVDS,
1465 &clk_src->lvds_ss_params,
1466 &clk_src->lvds_ss_params_cnt);
1467 }
1468
calc_pll_max_vco_construct(struct calc_pll_clock_source * calc_pll_cs,struct calc_pll_clock_source_init_data * init_data)1469 static bool calc_pll_max_vco_construct(
1470 struct calc_pll_clock_source *calc_pll_cs,
1471 struct calc_pll_clock_source_init_data *init_data)
1472 {
1473 uint32_t i;
1474 struct dc_firmware_info *fw_info;
1475 if (calc_pll_cs == NULL ||
1476 init_data == NULL ||
1477 init_data->bp == NULL)
1478 return false;
1479
1480 if (!init_data->bp->fw_info_valid)
1481 return false;
1482
1483 fw_info = &init_data->bp->fw_info;
1484 calc_pll_cs->ctx = init_data->ctx;
1485 calc_pll_cs->ref_freq_khz = fw_info->pll_info.crystal_frequency;
1486 calc_pll_cs->min_vco_khz =
1487 fw_info->pll_info.min_output_pxl_clk_pll_frequency;
1488 calc_pll_cs->max_vco_khz =
1489 fw_info->pll_info.max_output_pxl_clk_pll_frequency;
1490
1491 if (init_data->max_override_input_pxl_clk_pll_freq_khz != 0)
1492 calc_pll_cs->max_pll_input_freq_khz =
1493 init_data->max_override_input_pxl_clk_pll_freq_khz;
1494 else
1495 calc_pll_cs->max_pll_input_freq_khz =
1496 fw_info->pll_info.max_input_pxl_clk_pll_frequency;
1497
1498 if (init_data->min_override_input_pxl_clk_pll_freq_khz != 0)
1499 calc_pll_cs->min_pll_input_freq_khz =
1500 init_data->min_override_input_pxl_clk_pll_freq_khz;
1501 else
1502 calc_pll_cs->min_pll_input_freq_khz =
1503 fw_info->pll_info.min_input_pxl_clk_pll_frequency;
1504
1505 calc_pll_cs->min_pix_clock_pll_post_divider =
1506 init_data->min_pix_clk_pll_post_divider;
1507 calc_pll_cs->max_pix_clock_pll_post_divider =
1508 init_data->max_pix_clk_pll_post_divider;
1509 calc_pll_cs->min_pll_ref_divider =
1510 init_data->min_pll_ref_divider;
1511 calc_pll_cs->max_pll_ref_divider =
1512 init_data->max_pll_ref_divider;
1513
1514 if (init_data->num_fract_fb_divider_decimal_point == 0 ||
1515 init_data->num_fract_fb_divider_decimal_point_precision >
1516 init_data->num_fract_fb_divider_decimal_point) {
1517 DC_LOG_ERROR(
1518 "The dec point num or precision is incorrect!");
1519 return false;
1520 }
1521 if (init_data->num_fract_fb_divider_decimal_point_precision == 0) {
1522 DC_LOG_ERROR(
1523 "Incorrect fract feedback divider precision num!");
1524 return false;
1525 }
1526
1527 calc_pll_cs->fract_fb_divider_decimal_points_num =
1528 init_data->num_fract_fb_divider_decimal_point;
1529 calc_pll_cs->fract_fb_divider_precision =
1530 init_data->num_fract_fb_divider_decimal_point_precision;
1531 calc_pll_cs->fract_fb_divider_factor = 1;
1532 for (i = 0; i < calc_pll_cs->fract_fb_divider_decimal_points_num; ++i)
1533 calc_pll_cs->fract_fb_divider_factor *= 10;
1534
1535 calc_pll_cs->fract_fb_divider_precision_factor = 1;
1536 for (
1537 i = 0;
1538 i < (calc_pll_cs->fract_fb_divider_decimal_points_num -
1539 calc_pll_cs->fract_fb_divider_precision);
1540 ++i)
1541 calc_pll_cs->fract_fb_divider_precision_factor *= 10;
1542
1543 return true;
1544 }
1545
dce110_clk_src_construct(struct dce110_clk_src * clk_src,struct dc_context * ctx,struct dc_bios * bios,enum clock_source_id id,const struct dce110_clk_src_regs * regs,const struct dce110_clk_src_shift * cs_shift,const struct dce110_clk_src_mask * cs_mask)1546 bool dce110_clk_src_construct(
1547 struct dce110_clk_src *clk_src,
1548 struct dc_context *ctx,
1549 struct dc_bios *bios,
1550 enum clock_source_id id,
1551 const struct dce110_clk_src_regs *regs,
1552 const struct dce110_clk_src_shift *cs_shift,
1553 const struct dce110_clk_src_mask *cs_mask)
1554 {
1555 struct calc_pll_clock_source_init_data calc_pll_cs_init_data_hdmi;
1556 struct calc_pll_clock_source_init_data calc_pll_cs_init_data;
1557
1558 clk_src->base.ctx = ctx;
1559 clk_src->bios = bios;
1560 clk_src->base.id = id;
1561 clk_src->base.funcs = &dce110_clk_src_funcs;
1562
1563 clk_src->regs = regs;
1564 clk_src->cs_shift = cs_shift;
1565 clk_src->cs_mask = cs_mask;
1566
1567 if (!clk_src->bios->fw_info_valid) {
1568 ASSERT_CRITICAL(false);
1569 goto unexpected_failure;
1570 }
1571
1572 clk_src->ext_clk_khz = clk_src->bios->fw_info.external_clock_source_frequency_for_dp;
1573
1574 /* structure normally used with PLL ranges from ATOMBIOS; DS on by default */
1575 calc_pll_cs_init_data.bp = bios;
1576 calc_pll_cs_init_data.min_pix_clk_pll_post_divider = 1;
1577 calc_pll_cs_init_data.max_pix_clk_pll_post_divider =
1578 clk_src->cs_mask->PLL_POST_DIV_PIXCLK;
1579 calc_pll_cs_init_data.min_pll_ref_divider = 1;
1580 calc_pll_cs_init_data.max_pll_ref_divider = clk_src->cs_mask->PLL_REF_DIV;
1581 /* when 0 use minInputPxlClkPLLFrequencyInKHz from firmwareInfo*/
1582 calc_pll_cs_init_data.min_override_input_pxl_clk_pll_freq_khz = 0;
1583 /* when 0 use maxInputPxlClkPLLFrequencyInKHz from firmwareInfo*/
1584 calc_pll_cs_init_data.max_override_input_pxl_clk_pll_freq_khz = 0;
1585 /*numberOfFractFBDividerDecimalPoints*/
1586 calc_pll_cs_init_data.num_fract_fb_divider_decimal_point =
1587 FRACT_FB_DIVIDER_DEC_POINTS_MAX_NUM;
1588 /*number of decimal point to round off for fractional feedback divider value*/
1589 calc_pll_cs_init_data.num_fract_fb_divider_decimal_point_precision =
1590 FRACT_FB_DIVIDER_DEC_POINTS_MAX_NUM;
1591 calc_pll_cs_init_data.ctx = ctx;
1592
1593 /*structure for HDMI, no SS or SS% <= 0.06% for 27 MHz Ref clock */
1594 calc_pll_cs_init_data_hdmi.bp = bios;
1595 calc_pll_cs_init_data_hdmi.min_pix_clk_pll_post_divider = 1;
1596 calc_pll_cs_init_data_hdmi.max_pix_clk_pll_post_divider =
1597 clk_src->cs_mask->PLL_POST_DIV_PIXCLK;
1598 calc_pll_cs_init_data_hdmi.min_pll_ref_divider = 1;
1599 calc_pll_cs_init_data_hdmi.max_pll_ref_divider = clk_src->cs_mask->PLL_REF_DIV;
1600 /* when 0 use minInputPxlClkPLLFrequencyInKHz from firmwareInfo*/
1601 calc_pll_cs_init_data_hdmi.min_override_input_pxl_clk_pll_freq_khz = 13500;
1602 /* when 0 use maxInputPxlClkPLLFrequencyInKHz from firmwareInfo*/
1603 calc_pll_cs_init_data_hdmi.max_override_input_pxl_clk_pll_freq_khz = 27000;
1604 /*numberOfFractFBDividerDecimalPoints*/
1605 calc_pll_cs_init_data_hdmi.num_fract_fb_divider_decimal_point =
1606 FRACT_FB_DIVIDER_DEC_POINTS_MAX_NUM;
1607 /*number of decimal point to round off for fractional feedback divider value*/
1608 calc_pll_cs_init_data_hdmi.num_fract_fb_divider_decimal_point_precision =
1609 FRACT_FB_DIVIDER_DEC_POINTS_MAX_NUM;
1610 calc_pll_cs_init_data_hdmi.ctx = ctx;
1611
1612 clk_src->ref_freq_khz = clk_src->bios->fw_info.pll_info.crystal_frequency;
1613
1614 if (clk_src->base.id == CLOCK_SOURCE_ID_EXTERNAL)
1615 return true;
1616
1617 /* PLL only from here on */
1618 ss_info_from_atombios_create(clk_src);
1619
1620 if (!calc_pll_max_vco_construct(
1621 &clk_src->calc_pll,
1622 &calc_pll_cs_init_data)) {
1623 ASSERT_CRITICAL(false);
1624 goto unexpected_failure;
1625 }
1626
1627
1628 calc_pll_cs_init_data_hdmi.
1629 min_override_input_pxl_clk_pll_freq_khz = clk_src->ref_freq_khz/2;
1630 calc_pll_cs_init_data_hdmi.
1631 max_override_input_pxl_clk_pll_freq_khz = clk_src->ref_freq_khz;
1632
1633
1634 if (!calc_pll_max_vco_construct(
1635 &clk_src->calc_pll_hdmi, &calc_pll_cs_init_data_hdmi)) {
1636 ASSERT_CRITICAL(false);
1637 goto unexpected_failure;
1638 }
1639
1640 return true;
1641
1642 unexpected_failure:
1643 return false;
1644 }
1645
dce112_clk_src_construct(struct dce110_clk_src * clk_src,struct dc_context * ctx,struct dc_bios * bios,enum clock_source_id id,const struct dce110_clk_src_regs * regs,const struct dce110_clk_src_shift * cs_shift,const struct dce110_clk_src_mask * cs_mask)1646 bool dce112_clk_src_construct(
1647 struct dce110_clk_src *clk_src,
1648 struct dc_context *ctx,
1649 struct dc_bios *bios,
1650 enum clock_source_id id,
1651 const struct dce110_clk_src_regs *regs,
1652 const struct dce110_clk_src_shift *cs_shift,
1653 const struct dce110_clk_src_mask *cs_mask)
1654 {
1655 clk_src->base.ctx = ctx;
1656 clk_src->bios = bios;
1657 clk_src->base.id = id;
1658 clk_src->base.funcs = &dce112_clk_src_funcs;
1659
1660 clk_src->regs = regs;
1661 clk_src->cs_shift = cs_shift;
1662 clk_src->cs_mask = cs_mask;
1663
1664 if (!clk_src->bios->fw_info_valid) {
1665 ASSERT_CRITICAL(false);
1666 return false;
1667 }
1668
1669 clk_src->ext_clk_khz = clk_src->bios->fw_info.external_clock_source_frequency_for_dp;
1670
1671 return true;
1672 }
1673
dcn20_clk_src_construct(struct dce110_clk_src * clk_src,struct dc_context * ctx,struct dc_bios * bios,enum clock_source_id id,const struct dce110_clk_src_regs * regs,const struct dce110_clk_src_shift * cs_shift,const struct dce110_clk_src_mask * cs_mask)1674 bool dcn20_clk_src_construct(
1675 struct dce110_clk_src *clk_src,
1676 struct dc_context *ctx,
1677 struct dc_bios *bios,
1678 enum clock_source_id id,
1679 const struct dce110_clk_src_regs *regs,
1680 const struct dce110_clk_src_shift *cs_shift,
1681 const struct dce110_clk_src_mask *cs_mask)
1682 {
1683 bool ret = dce112_clk_src_construct(clk_src, ctx, bios, id, regs, cs_shift, cs_mask);
1684
1685 clk_src->base.funcs = &dcn20_clk_src_funcs;
1686
1687 return ret;
1688 }
1689
dcn3_clk_src_construct(struct dce110_clk_src * clk_src,struct dc_context * ctx,struct dc_bios * bios,enum clock_source_id id,const struct dce110_clk_src_regs * regs,const struct dce110_clk_src_shift * cs_shift,const struct dce110_clk_src_mask * cs_mask)1690 bool dcn3_clk_src_construct(
1691 struct dce110_clk_src *clk_src,
1692 struct dc_context *ctx,
1693 struct dc_bios *bios,
1694 enum clock_source_id id,
1695 const struct dce110_clk_src_regs *regs,
1696 const struct dce110_clk_src_shift *cs_shift,
1697 const struct dce110_clk_src_mask *cs_mask)
1698 {
1699 bool ret = dce112_clk_src_construct(clk_src, ctx, bios, id, regs, cs_shift, cs_mask);
1700
1701 clk_src->base.funcs = &dcn3_clk_src_funcs;
1702
1703 return ret;
1704 }
1705
dcn31_clk_src_construct(struct dce110_clk_src * clk_src,struct dc_context * ctx,struct dc_bios * bios,enum clock_source_id id,const struct dce110_clk_src_regs * regs,const struct dce110_clk_src_shift * cs_shift,const struct dce110_clk_src_mask * cs_mask)1706 bool dcn31_clk_src_construct(
1707 struct dce110_clk_src *clk_src,
1708 struct dc_context *ctx,
1709 struct dc_bios *bios,
1710 enum clock_source_id id,
1711 const struct dce110_clk_src_regs *regs,
1712 const struct dce110_clk_src_shift *cs_shift,
1713 const struct dce110_clk_src_mask *cs_mask)
1714 {
1715 bool ret = dce112_clk_src_construct(clk_src, ctx, bios, id, regs, cs_shift, cs_mask);
1716
1717 clk_src->base.funcs = &dcn31_clk_src_funcs;
1718
1719 return ret;
1720 }
1721
dcn301_clk_src_construct(struct dce110_clk_src * clk_src,struct dc_context * ctx,struct dc_bios * bios,enum clock_source_id id,const struct dce110_clk_src_regs * regs,const struct dce110_clk_src_shift * cs_shift,const struct dce110_clk_src_mask * cs_mask)1722 bool dcn301_clk_src_construct(
1723 struct dce110_clk_src *clk_src,
1724 struct dc_context *ctx,
1725 struct dc_bios *bios,
1726 enum clock_source_id id,
1727 const struct dce110_clk_src_regs *regs,
1728 const struct dce110_clk_src_shift *cs_shift,
1729 const struct dce110_clk_src_mask *cs_mask)
1730 {
1731 bool ret = dce112_clk_src_construct(clk_src, ctx, bios, id, regs, cs_shift, cs_mask);
1732
1733 clk_src->base.funcs = &dcn3_clk_src_funcs;
1734
1735 return ret;
1736 }
1737