1 /*
2 * Copyright 2018 Advanced Micro Devices, Inc.
3  * Copyright 2019 Raptor Engineering, LLC
4  *
5  * Permission is hereby granted, free of charge, to any person obtaining a
6  * copy of this software and associated documentation files (the "Software"),
7  * to deal in the Software without restriction, including without limitation
8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9  * and/or sell copies of the Software, and to permit persons to whom the
10  * Software is furnished to do so, subject to the following conditions:
11  *
12  * The above copyright notice and this permission notice shall be included in
13  * all copies or substantial portions of the 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
19  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
21  * OTHER DEALINGS IN THE SOFTWARE.
22  *
23  * Authors: AMD
24  *
25  */
26 
27 #include <linux/slab.h>
28 
29 #include "dm_services.h"
30 #include "dc.h"
31 
32 #include "dcn21_init.h"
33 
34 #include "resource.h"
35 #include "include/irq_service_interface.h"
36 #include "dcn20/dcn20_resource.h"
37 #include "dcn21/dcn21_resource.h"
38 
39 #include "dml/dcn20/dcn20_fpu.h"
40 
41 #include "clk_mgr.h"
42 #include "dcn10/dcn10_hubp.h"
43 #include "dcn10/dcn10_ipp.h"
44 #include "dcn20/dcn20_hubbub.h"
45 #include "dcn20/dcn20_mpc.h"
46 #include "dcn20/dcn20_hubp.h"
47 #include "dcn21_hubp.h"
48 #include "irq/dcn21/irq_service_dcn21.h"
49 #include "dcn20/dcn20_dpp.h"
50 #include "dcn20/dcn20_optc.h"
51 #include "dcn21/dcn21_hwseq.h"
52 #include "dce110/dce110_hw_sequencer.h"
53 #include "dcn20/dcn20_opp.h"
54 #include "dcn20/dcn20_dsc.h"
55 #include "dcn21/dcn21_link_encoder.h"
56 #include "dcn20/dcn20_stream_encoder.h"
57 #include "dce/dce_clock_source.h"
58 #include "dce/dce_audio.h"
59 #include "dce/dce_hwseq.h"
60 #include "virtual/virtual_stream_encoder.h"
61 #include "dml/display_mode_vba.h"
62 #include "dcn20/dcn20_dccg.h"
63 #include "dcn21/dcn21_dccg.h"
64 #include "dcn21_hubbub.h"
65 #include "dcn10/dcn10_resource.h"
66 #include "dce/dce_panel_cntl.h"
67 
68 #include "dcn20/dcn20_dwb.h"
69 #include "dcn20/dcn20_mmhubbub.h"
70 #include "dpcs/dpcs_2_1_0_offset.h"
71 #include "dpcs/dpcs_2_1_0_sh_mask.h"
72 
73 #include "renoir_ip_offset.h"
74 #include "dcn/dcn_2_1_0_offset.h"
75 #include "dcn/dcn_2_1_0_sh_mask.h"
76 
77 #include "nbio/nbio_7_0_offset.h"
78 
79 #include "mmhub/mmhub_2_0_0_offset.h"
80 #include "mmhub/mmhub_2_0_0_sh_mask.h"
81 
82 #include "reg_helper.h"
83 #include "dce/dce_abm.h"
84 #include "dce/dce_dmcu.h"
85 #include "dce/dce_aux.h"
86 #include "dce/dce_i2c.h"
87 #include "dcn21_resource.h"
88 #include "vm_helper.h"
89 #include "dcn20/dcn20_vmid.h"
90 #include "dce/dmub_psr.h"
91 #include "dce/dmub_abm.h"
92 
93 /* begin *********************
94  * macros to expend register list macro defined in HW object header file */
95 
96 /* DCN */
97 /* TODO awful hack. fixup dcn20_dwb.h */
98 #undef BASE_INNER
99 #define BASE_INNER(seg) DMU_BASE__INST0_SEG ## seg
100 
101 #define BASE(seg) BASE_INNER(seg)
102 
103 #define SR(reg_name)\
104 		.reg_name = BASE(mm ## reg_name ## _BASE_IDX) +  \
105 					mm ## reg_name
106 
107 #define SRI(reg_name, block, id)\
108 	.reg_name = BASE(mm ## block ## id ## _ ## reg_name ## _BASE_IDX) + \
109 					mm ## block ## id ## _ ## reg_name
110 
111 #define SRIR(var_name, reg_name, block, id)\
112 	.var_name = BASE(mm ## block ## id ## _ ## reg_name ## _BASE_IDX) + \
113 					mm ## block ## id ## _ ## reg_name
114 
115 #define SRII(reg_name, block, id)\
116 	.reg_name[id] = BASE(mm ## block ## id ## _ ## reg_name ## _BASE_IDX) + \
117 					mm ## block ## id ## _ ## reg_name
118 
119 #define DCCG_SRII(reg_name, block, id)\
120 	.block ## _ ## reg_name[id] = BASE(mm ## block ## id ## _ ## reg_name ## _BASE_IDX) + \
121 					mm ## block ## id ## _ ## reg_name
122 
123 #define VUPDATE_SRII(reg_name, block, id)\
124 	.reg_name[id] = BASE(mm ## reg_name ## _ ## block ## id ## _BASE_IDX) + \
125 					mm ## reg_name ## _ ## block ## id
126 
127 /* NBIO */
128 #define NBIO_BASE_INNER(seg) \
129 	NBIF0_BASE__INST0_SEG ## seg
130 
131 #define NBIO_BASE(seg) \
132 	NBIO_BASE_INNER(seg)
133 
134 #define NBIO_SR(reg_name)\
135 		.reg_name = NBIO_BASE(mm ## reg_name ## _BASE_IDX) + \
136 					mm ## reg_name
137 
138 /* MMHUB */
139 #define MMHUB_BASE_INNER(seg) \
140 	MMHUB_BASE__INST0_SEG ## seg
141 
142 #define MMHUB_BASE(seg) \
143 	MMHUB_BASE_INNER(seg)
144 
145 #define MMHUB_SR(reg_name)\
146 		.reg_name = MMHUB_BASE(mmMM ## reg_name ## _BASE_IDX) + \
147 					mmMM ## reg_name
148 
149 #define clk_src_regs(index, pllid)\
150 [index] = {\
151 	CS_COMMON_REG_LIST_DCN2_1(index, pllid),\
152 }
153 
154 static const struct dce110_clk_src_regs clk_src_regs[] = {
155 	clk_src_regs(0, A),
156 	clk_src_regs(1, B),
157 	clk_src_regs(2, C),
158 	clk_src_regs(3, D),
159 	clk_src_regs(4, E),
160 };
161 
162 static const struct dce110_clk_src_shift cs_shift = {
163 		CS_COMMON_MASK_SH_LIST_DCN2_0(__SHIFT)
164 };
165 
166 static const struct dce110_clk_src_mask cs_mask = {
167 		CS_COMMON_MASK_SH_LIST_DCN2_0(_MASK)
168 };
169 
170 static const struct bios_registers bios_regs = {
171 		NBIO_SR(BIOS_SCRATCH_3),
172 		NBIO_SR(BIOS_SCRATCH_6)
173 };
174 
175 static const struct dce_dmcu_registers dmcu_regs = {
176 		DMCU_DCN20_REG_LIST()
177 };
178 
179 static const struct dce_dmcu_shift dmcu_shift = {
180 		DMCU_MASK_SH_LIST_DCN10(__SHIFT)
181 };
182 
183 static const struct dce_dmcu_mask dmcu_mask = {
184 		DMCU_MASK_SH_LIST_DCN10(_MASK)
185 };
186 
187 static const struct dce_abm_registers abm_regs = {
188 		ABM_DCN20_REG_LIST()
189 };
190 
191 static const struct dce_abm_shift abm_shift = {
192 		ABM_MASK_SH_LIST_DCN20(__SHIFT)
193 };
194 
195 static const struct dce_abm_mask abm_mask = {
196 		ABM_MASK_SH_LIST_DCN20(_MASK)
197 };
198 
199 #define audio_regs(id)\
200 [id] = {\
201 		AUD_COMMON_REG_LIST(id)\
202 }
203 
204 static const struct dce_audio_registers audio_regs[] = {
205 	audio_regs(0),
206 	audio_regs(1),
207 	audio_regs(2),
208 	audio_regs(3),
209 	audio_regs(4),
210 	audio_regs(5),
211 };
212 
213 #define DCE120_AUD_COMMON_MASK_SH_LIST(mask_sh)\
214 		SF(AZF0ENDPOINT0_AZALIA_F0_CODEC_ENDPOINT_INDEX, AZALIA_ENDPOINT_REG_INDEX, mask_sh),\
215 		SF(AZF0ENDPOINT0_AZALIA_F0_CODEC_ENDPOINT_DATA, AZALIA_ENDPOINT_REG_DATA, mask_sh),\
216 		AUD_COMMON_MASK_SH_LIST_BASE(mask_sh)
217 
218 static const struct dce_audio_shift audio_shift = {
219 		DCE120_AUD_COMMON_MASK_SH_LIST(__SHIFT)
220 };
221 
222 static const struct dce_audio_mask audio_mask = {
223 		DCE120_AUD_COMMON_MASK_SH_LIST(_MASK)
224 };
225 
226 static const struct dccg_registers dccg_regs = {
227 		DCCG_COMMON_REG_LIST_DCN_BASE()
228 };
229 
230 static const struct dccg_shift dccg_shift = {
231 		DCCG_MASK_SH_LIST_DCN2_1(__SHIFT)
232 };
233 
234 static const struct dccg_mask dccg_mask = {
235 		DCCG_MASK_SH_LIST_DCN2_1(_MASK)
236 };
237 
238 #define opp_regs(id)\
239 [id] = {\
240 	OPP_REG_LIST_DCN20(id),\
241 }
242 
243 static const struct dcn20_opp_registers opp_regs[] = {
244 	opp_regs(0),
245 	opp_regs(1),
246 	opp_regs(2),
247 	opp_regs(3),
248 	opp_regs(4),
249 	opp_regs(5),
250 };
251 
252 static const struct dcn20_opp_shift opp_shift = {
253 		OPP_MASK_SH_LIST_DCN20(__SHIFT)
254 };
255 
256 static const struct dcn20_opp_mask opp_mask = {
257 		OPP_MASK_SH_LIST_DCN20(_MASK)
258 };
259 
260 #define tg_regs(id)\
261 [id] = {TG_COMMON_REG_LIST_DCN2_0(id)}
262 
263 static const struct dcn_optc_registers tg_regs[] = {
264 	tg_regs(0),
265 	tg_regs(1),
266 	tg_regs(2),
267 	tg_regs(3)
268 };
269 
270 static const struct dcn_optc_shift tg_shift = {
271 	TG_COMMON_MASK_SH_LIST_DCN2_0(__SHIFT)
272 };
273 
274 static const struct dcn_optc_mask tg_mask = {
275 	TG_COMMON_MASK_SH_LIST_DCN2_0(_MASK)
276 };
277 
278 static const struct dcn20_mpc_registers mpc_regs = {
279 		MPC_REG_LIST_DCN2_0(0),
280 		MPC_REG_LIST_DCN2_0(1),
281 		MPC_REG_LIST_DCN2_0(2),
282 		MPC_REG_LIST_DCN2_0(3),
283 		MPC_REG_LIST_DCN2_0(4),
284 		MPC_REG_LIST_DCN2_0(5),
285 		MPC_OUT_MUX_REG_LIST_DCN2_0(0),
286 		MPC_OUT_MUX_REG_LIST_DCN2_0(1),
287 		MPC_OUT_MUX_REG_LIST_DCN2_0(2),
288 		MPC_OUT_MUX_REG_LIST_DCN2_0(3),
289 		MPC_DBG_REG_LIST_DCN2_0()
290 };
291 
292 static const struct dcn20_mpc_shift mpc_shift = {
293 	MPC_COMMON_MASK_SH_LIST_DCN2_0(__SHIFT),
294 	MPC_DEBUG_REG_LIST_SH_DCN20
295 };
296 
297 static const struct dcn20_mpc_mask mpc_mask = {
298 	MPC_COMMON_MASK_SH_LIST_DCN2_0(_MASK),
299 	MPC_DEBUG_REG_LIST_MASK_DCN20
300 };
301 
302 #define hubp_regs(id)\
303 [id] = {\
304 	HUBP_REG_LIST_DCN21(id)\
305 }
306 
307 static const struct dcn_hubp2_registers hubp_regs[] = {
308 		hubp_regs(0),
309 		hubp_regs(1),
310 		hubp_regs(2),
311 		hubp_regs(3)
312 };
313 
314 static const struct dcn_hubp2_shift hubp_shift = {
315 		HUBP_MASK_SH_LIST_DCN21(__SHIFT)
316 };
317 
318 static const struct dcn_hubp2_mask hubp_mask = {
319 		HUBP_MASK_SH_LIST_DCN21(_MASK)
320 };
321 
322 static const struct dcn_hubbub_registers hubbub_reg = {
323 		HUBBUB_REG_LIST_DCN21()
324 };
325 
326 static const struct dcn_hubbub_shift hubbub_shift = {
327 		HUBBUB_MASK_SH_LIST_DCN21(__SHIFT)
328 };
329 
330 static const struct dcn_hubbub_mask hubbub_mask = {
331 		HUBBUB_MASK_SH_LIST_DCN21(_MASK)
332 };
333 
334 
335 #define vmid_regs(id)\
336 [id] = {\
337 		DCN20_VMID_REG_LIST(id)\
338 }
339 
340 static const struct dcn_vmid_registers vmid_regs[] = {
341 	vmid_regs(0),
342 	vmid_regs(1),
343 	vmid_regs(2),
344 	vmid_regs(3),
345 	vmid_regs(4),
346 	vmid_regs(5),
347 	vmid_regs(6),
348 	vmid_regs(7),
349 	vmid_regs(8),
350 	vmid_regs(9),
351 	vmid_regs(10),
352 	vmid_regs(11),
353 	vmid_regs(12),
354 	vmid_regs(13),
355 	vmid_regs(14),
356 	vmid_regs(15)
357 };
358 
359 static const struct dcn20_vmid_shift vmid_shifts = {
360 		DCN20_VMID_MASK_SH_LIST(__SHIFT)
361 };
362 
363 static const struct dcn20_vmid_mask vmid_masks = {
364 		DCN20_VMID_MASK_SH_LIST(_MASK)
365 };
366 
367 #define dsc_regsDCN20(id)\
368 [id] = {\
369 	DSC_REG_LIST_DCN20(id)\
370 }
371 
372 static const struct dcn20_dsc_registers dsc_regs[] = {
373 	dsc_regsDCN20(0),
374 	dsc_regsDCN20(1),
375 	dsc_regsDCN20(2),
376 	dsc_regsDCN20(3),
377 	dsc_regsDCN20(4),
378 	dsc_regsDCN20(5)
379 };
380 
381 static const struct dcn20_dsc_shift dsc_shift = {
382 	DSC_REG_LIST_SH_MASK_DCN20(__SHIFT)
383 };
384 
385 static const struct dcn20_dsc_mask dsc_mask = {
386 	DSC_REG_LIST_SH_MASK_DCN20(_MASK)
387 };
388 
389 #define ipp_regs(id)\
390 [id] = {\
391 	IPP_REG_LIST_DCN20(id),\
392 }
393 
394 static const struct dcn10_ipp_registers ipp_regs[] = {
395 	ipp_regs(0),
396 	ipp_regs(1),
397 	ipp_regs(2),
398 	ipp_regs(3),
399 };
400 
401 static const struct dcn10_ipp_shift ipp_shift = {
402 		IPP_MASK_SH_LIST_DCN20(__SHIFT)
403 };
404 
405 static const struct dcn10_ipp_mask ipp_mask = {
406 		IPP_MASK_SH_LIST_DCN20(_MASK),
407 };
408 
409 #define opp_regs(id)\
410 [id] = {\
411 	OPP_REG_LIST_DCN20(id),\
412 }
413 
414 
415 #define aux_engine_regs(id)\
416 [id] = {\
417 	AUX_COMMON_REG_LIST0(id), \
418 	.AUXN_IMPCAL = 0, \
419 	.AUXP_IMPCAL = 0, \
420 	.AUX_RESET_MASK = DP_AUX0_AUX_CONTROL__AUX_RESET_MASK, \
421 }
422 
423 static const struct dce110_aux_registers aux_engine_regs[] = {
424 		aux_engine_regs(0),
425 		aux_engine_regs(1),
426 		aux_engine_regs(2),
427 		aux_engine_regs(3),
428 		aux_engine_regs(4),
429 };
430 
431 #define tf_regs(id)\
432 [id] = {\
433 	TF_REG_LIST_DCN20(id),\
434 	TF_REG_LIST_DCN20_COMMON_APPEND(id),\
435 }
436 
437 static const struct dcn2_dpp_registers tf_regs[] = {
438 	tf_regs(0),
439 	tf_regs(1),
440 	tf_regs(2),
441 	tf_regs(3),
442 };
443 
444 static const struct dcn2_dpp_shift tf_shift = {
445 		TF_REG_LIST_SH_MASK_DCN20(__SHIFT),
446 		TF_DEBUG_REG_LIST_SH_DCN20
447 };
448 
449 static const struct dcn2_dpp_mask tf_mask = {
450 		TF_REG_LIST_SH_MASK_DCN20(_MASK),
451 		TF_DEBUG_REG_LIST_MASK_DCN20
452 };
453 
454 #define stream_enc_regs(id)\
455 [id] = {\
456 	SE_DCN2_REG_LIST(id)\
457 }
458 
459 static const struct dcn10_stream_enc_registers stream_enc_regs[] = {
460 	stream_enc_regs(0),
461 	stream_enc_regs(1),
462 	stream_enc_regs(2),
463 	stream_enc_regs(3),
464 	stream_enc_regs(4),
465 };
466 
467 static const struct dce110_aux_registers_shift aux_shift = {
468 	DCN_AUX_MASK_SH_LIST(__SHIFT)
469 };
470 
471 static const struct dce110_aux_registers_mask aux_mask = {
472 	DCN_AUX_MASK_SH_LIST(_MASK)
473 };
474 
475 static const struct dcn10_stream_encoder_shift se_shift = {
476 		SE_COMMON_MASK_SH_LIST_DCN20(__SHIFT)
477 };
478 
479 static const struct dcn10_stream_encoder_mask se_mask = {
480 		SE_COMMON_MASK_SH_LIST_DCN20(_MASK)
481 };
482 
483 static void dcn21_pp_smu_destroy(struct pp_smu_funcs **pp_smu);
484 
dcn21_ipp_create(struct dc_context * ctx,uint32_t inst)485 static struct input_pixel_processor *dcn21_ipp_create(
486 	struct dc_context *ctx, uint32_t inst)
487 {
488 	struct dcn10_ipp *ipp =
489 		kzalloc(sizeof(struct dcn10_ipp), GFP_KERNEL);
490 
491 	if (!ipp) {
492 		BREAK_TO_DEBUGGER();
493 		return NULL;
494 	}
495 
496 	dcn20_ipp_construct(ipp, ctx, inst,
497 			&ipp_regs[inst], &ipp_shift, &ipp_mask);
498 	return &ipp->base;
499 }
500 
dcn21_dpp_create(struct dc_context * ctx,uint32_t inst)501 static struct dpp *dcn21_dpp_create(
502 	struct dc_context *ctx,
503 	uint32_t inst)
504 {
505 	struct dcn20_dpp *dpp =
506 		kzalloc(sizeof(struct dcn20_dpp), GFP_KERNEL);
507 
508 	if (!dpp)
509 		return NULL;
510 
511 	if (dpp2_construct(dpp, ctx, inst,
512 			&tf_regs[inst], &tf_shift, &tf_mask))
513 		return &dpp->base;
514 
515 	BREAK_TO_DEBUGGER();
516 	kfree(dpp);
517 	return NULL;
518 }
519 
dcn21_aux_engine_create(struct dc_context * ctx,uint32_t inst)520 static struct dce_aux *dcn21_aux_engine_create(
521 	struct dc_context *ctx,
522 	uint32_t inst)
523 {
524 	struct aux_engine_dce110 *aux_engine =
525 		kzalloc(sizeof(struct aux_engine_dce110), GFP_KERNEL);
526 
527 	if (!aux_engine)
528 		return NULL;
529 
530 	dce110_aux_engine_construct(aux_engine, ctx, inst,
531 				    SW_AUX_TIMEOUT_PERIOD_MULTIPLIER * AUX_TIMEOUT_PERIOD,
532 				    &aux_engine_regs[inst],
533 					&aux_mask,
534 					&aux_shift,
535 					ctx->dc->caps.extended_aux_timeout_support);
536 
537 	return &aux_engine->base;
538 }
539 
540 #define i2c_inst_regs(id) { I2C_HW_ENGINE_COMMON_REG_LIST(id) }
541 
542 static const struct dce_i2c_registers i2c_hw_regs[] = {
543 		i2c_inst_regs(1),
544 		i2c_inst_regs(2),
545 		i2c_inst_regs(3),
546 		i2c_inst_regs(4),
547 		i2c_inst_regs(5),
548 };
549 
550 static const struct dce_i2c_shift i2c_shifts = {
551 		I2C_COMMON_MASK_SH_LIST_DCN2(__SHIFT)
552 };
553 
554 static const struct dce_i2c_mask i2c_masks = {
555 		I2C_COMMON_MASK_SH_LIST_DCN2(_MASK)
556 };
557 
dcn21_i2c_hw_create(struct dc_context * ctx,uint32_t inst)558 static struct dce_i2c_hw *dcn21_i2c_hw_create(struct dc_context *ctx,
559 					      uint32_t inst)
560 {
561 	struct dce_i2c_hw *dce_i2c_hw =
562 		kzalloc(sizeof(struct dce_i2c_hw), GFP_KERNEL);
563 
564 	if (!dce_i2c_hw)
565 		return NULL;
566 
567 	dcn2_i2c_hw_construct(dce_i2c_hw, ctx, inst,
568 				    &i2c_hw_regs[inst], &i2c_shifts, &i2c_masks);
569 
570 	return dce_i2c_hw;
571 }
572 
573 static const struct resource_caps res_cap_rn = {
574 		.num_timing_generator = 4,
575 		.num_opp = 4,
576 		.num_video_plane = 4,
577 		.num_audio = 4, // 4 audio endpoints.  4 audio streams
578 		.num_stream_encoder = 5,
579 		.num_pll = 5,  // maybe 3 because the last two used for USB-c
580 		.num_dwb = 1,
581 		.num_ddc = 5,
582 		.num_vmid = 16,
583 		.num_dsc = 3,
584 };
585 
586 #ifdef DIAGS_BUILD
587 static const struct resource_caps res_cap_rn_FPGA_4pipe = {
588 		.num_timing_generator = 4,
589 		.num_opp = 4,
590 		.num_video_plane = 4,
591 		.num_audio = 7,
592 		.num_stream_encoder = 4,
593 		.num_pll = 4,
594 		.num_dwb = 1,
595 		.num_ddc = 4,
596 		.num_dsc = 0,
597 };
598 
599 static const struct resource_caps res_cap_rn_FPGA_2pipe_dsc = {
600 		.num_timing_generator = 2,
601 		.num_opp = 2,
602 		.num_video_plane = 2,
603 		.num_audio = 7,
604 		.num_stream_encoder = 2,
605 		.num_pll = 4,
606 		.num_dwb = 1,
607 		.num_ddc = 4,
608 		.num_dsc = 2,
609 };
610 #endif
611 
612 static const struct dc_plane_cap plane_cap = {
613 	.type = DC_PLANE_TYPE_DCN_UNIVERSAL,
614 	.blends_with_above = true,
615 	.blends_with_below = true,
616 	.per_pixel_alpha = true,
617 
618 	.pixel_format_support = {
619 			.argb8888 = true,
620 			.nv12 = true,
621 			.fp16 = true,
622 			.p010 = true
623 	},
624 
625 	.max_upscale_factor = {
626 			.argb8888 = 16000,
627 			.nv12 = 16000,
628 			.fp16 = 16000
629 	},
630 
631 	.max_downscale_factor = {
632 			.argb8888 = 250,
633 			.nv12 = 250,
634 			.fp16 = 250
635 	},
636 	64,
637 	64
638 };
639 
640 static const struct dc_debug_options debug_defaults_drv = {
641 		.disable_dmcu = false,
642 		.force_abm_enable = false,
643 		.timing_trace = false,
644 		.clock_trace = true,
645 		.disable_pplib_clock_request = true,
646 		.min_disp_clk_khz = 100000,
647 		.pipe_split_policy = MPC_SPLIT_AVOID_MULT_DISP,
648 		.force_single_disp_pipe_split = false,
649 		.disable_dcc = DCC_ENABLE,
650 		.vsr_support = true,
651 		.performance_trace = false,
652 		.max_downscale_src_width = 4096,
653 		.disable_pplib_wm_range = false,
654 		.scl_reset_length10 = true,
655 		.sanity_checks = true,
656 		.disable_48mhz_pwrdwn = false,
657 		.usbc_combo_phy_reset_wa = true,
658 		.dmub_command_table = true,
659 		.use_max_lb = true,
660 };
661 
662 static const struct dc_debug_options debug_defaults_diags = {
663 		.disable_dmcu = false,
664 		.force_abm_enable = false,
665 		.timing_trace = true,
666 		.clock_trace = true,
667 		.disable_dpp_power_gate = true,
668 		.disable_hubp_power_gate = true,
669 		.disable_clock_gate = true,
670 		.disable_pplib_clock_request = true,
671 		.disable_pplib_wm_range = true,
672 		.disable_stutter = true,
673 		.disable_48mhz_pwrdwn = true,
674 		.disable_psr = true,
675 		.enable_tri_buf = true,
676 		.use_max_lb = true
677 };
678 
679 static const struct dc_panel_config panel_config_defaults = {
680 		.ilr = {
681 			.optimize_edp_link_rate = true,
682 		},
683 };
684 
685 enum dcn20_clk_src_array_id {
686 	DCN20_CLK_SRC_PLL0,
687 	DCN20_CLK_SRC_PLL1,
688 	DCN20_CLK_SRC_PLL2,
689 	DCN20_CLK_SRC_PLL3,
690 	DCN20_CLK_SRC_PLL4,
691 	DCN20_CLK_SRC_TOTAL_DCN21
692 };
693 
dcn21_resource_destruct(struct dcn21_resource_pool * pool)694 static void dcn21_resource_destruct(struct dcn21_resource_pool *pool)
695 {
696 	unsigned int i;
697 
698 	for (i = 0; i < pool->base.stream_enc_count; i++) {
699 		if (pool->base.stream_enc[i] != NULL) {
700 			kfree(DCN10STRENC_FROM_STRENC(pool->base.stream_enc[i]));
701 			pool->base.stream_enc[i] = NULL;
702 		}
703 	}
704 
705 	for (i = 0; i < pool->base.res_cap->num_dsc; i++) {
706 		if (pool->base.dscs[i] != NULL)
707 			dcn20_dsc_destroy(&pool->base.dscs[i]);
708 	}
709 
710 	if (pool->base.mpc != NULL) {
711 		kfree(TO_DCN20_MPC(pool->base.mpc));
712 		pool->base.mpc = NULL;
713 	}
714 	if (pool->base.hubbub != NULL) {
715 		kfree(pool->base.hubbub);
716 		pool->base.hubbub = NULL;
717 	}
718 	for (i = 0; i < pool->base.pipe_count; i++) {
719 		if (pool->base.dpps[i] != NULL)
720 			dcn20_dpp_destroy(&pool->base.dpps[i]);
721 
722 		if (pool->base.ipps[i] != NULL)
723 			pool->base.ipps[i]->funcs->ipp_destroy(&pool->base.ipps[i]);
724 
725 		if (pool->base.hubps[i] != NULL) {
726 			kfree(TO_DCN20_HUBP(pool->base.hubps[i]));
727 			pool->base.hubps[i] = NULL;
728 		}
729 
730 		if (pool->base.irqs != NULL) {
731 			dal_irq_service_destroy(&pool->base.irqs);
732 		}
733 	}
734 
735 	for (i = 0; i < pool->base.res_cap->num_ddc; i++) {
736 		if (pool->base.engines[i] != NULL)
737 			dce110_engine_destroy(&pool->base.engines[i]);
738 		if (pool->base.hw_i2cs[i] != NULL) {
739 			kfree(pool->base.hw_i2cs[i]);
740 			pool->base.hw_i2cs[i] = NULL;
741 		}
742 		if (pool->base.sw_i2cs[i] != NULL) {
743 			kfree(pool->base.sw_i2cs[i]);
744 			pool->base.sw_i2cs[i] = NULL;
745 		}
746 	}
747 
748 	for (i = 0; i < pool->base.res_cap->num_opp; i++) {
749 		if (pool->base.opps[i] != NULL)
750 			pool->base.opps[i]->funcs->opp_destroy(&pool->base.opps[i]);
751 	}
752 
753 	for (i = 0; i < pool->base.res_cap->num_timing_generator; i++) {
754 		if (pool->base.timing_generators[i] != NULL)	{
755 			kfree(DCN10TG_FROM_TG(pool->base.timing_generators[i]));
756 			pool->base.timing_generators[i] = NULL;
757 		}
758 	}
759 
760 	for (i = 0; i < pool->base.res_cap->num_dwb; i++) {
761 		if (pool->base.dwbc[i] != NULL) {
762 			kfree(TO_DCN20_DWBC(pool->base.dwbc[i]));
763 			pool->base.dwbc[i] = NULL;
764 		}
765 		if (pool->base.mcif_wb[i] != NULL) {
766 			kfree(TO_DCN20_MMHUBBUB(pool->base.mcif_wb[i]));
767 			pool->base.mcif_wb[i] = NULL;
768 		}
769 	}
770 
771 	for (i = 0; i < pool->base.audio_count; i++) {
772 		if (pool->base.audios[i])
773 			dce_aud_destroy(&pool->base.audios[i]);
774 	}
775 
776 	for (i = 0; i < pool->base.clk_src_count; i++) {
777 		if (pool->base.clock_sources[i] != NULL) {
778 			dcn20_clock_source_destroy(&pool->base.clock_sources[i]);
779 			pool->base.clock_sources[i] = NULL;
780 		}
781 	}
782 
783 	if (pool->base.dp_clock_source != NULL) {
784 		dcn20_clock_source_destroy(&pool->base.dp_clock_source);
785 		pool->base.dp_clock_source = NULL;
786 	}
787 
788 	if (pool->base.abm != NULL) {
789 		if (pool->base.abm->ctx->dc->config.disable_dmcu)
790 			dmub_abm_destroy(&pool->base.abm);
791 		else
792 			dce_abm_destroy(&pool->base.abm);
793 	}
794 
795 	if (pool->base.dmcu != NULL)
796 		dce_dmcu_destroy(&pool->base.dmcu);
797 
798 	if (pool->base.psr != NULL)
799 		dmub_psr_destroy(&pool->base.psr);
800 
801 	if (pool->base.dccg != NULL)
802 		dcn_dccg_destroy(&pool->base.dccg);
803 
804 	if (pool->base.pp_smu != NULL)
805 		dcn21_pp_smu_destroy(&pool->base.pp_smu);
806 }
807 
dcn21_fast_validate_bw(struct dc * dc,struct dc_state * context,display_e2e_pipe_params_st * pipes,int * pipe_cnt_out,int * pipe_split_from,int * vlevel_out,bool fast_validate)808 bool dcn21_fast_validate_bw(struct dc *dc,
809 			    struct dc_state *context,
810 			    display_e2e_pipe_params_st *pipes,
811 			    int *pipe_cnt_out,
812 			    int *pipe_split_from,
813 			    int *vlevel_out,
814 			    bool fast_validate)
815 {
816 	bool out = false;
817 	int split[MAX_PIPES] = { 0 };
818 	int pipe_cnt, i, pipe_idx, vlevel;
819 
820 	ASSERT(pipes);
821 	if (!pipes)
822 		return false;
823 
824 	dcn20_merge_pipes_for_validate(dc, context);
825 
826 	DC_FP_START();
827 	pipe_cnt = dc->res_pool->funcs->populate_dml_pipes(dc, context, pipes, fast_validate);
828 	DC_FP_END();
829 
830 	*pipe_cnt_out = pipe_cnt;
831 
832 	if (!pipe_cnt) {
833 		out = true;
834 		goto validate_out;
835 	}
836 	/*
837 	 * DML favors voltage over p-state, but we're more interested in
838 	 * supporting p-state over voltage. We can't support p-state in
839 	 * prefetch mode > 0 so try capping the prefetch mode to start.
840 	 */
841 	context->bw_ctx.dml.soc.allow_dram_self_refresh_or_dram_clock_change_in_vblank =
842 				dm_allow_self_refresh_and_mclk_switch;
843 	vlevel = dml_get_voltage_level(&context->bw_ctx.dml, pipes, pipe_cnt);
844 
845 	if (vlevel > context->bw_ctx.dml.soc.num_states) {
846 		/*
847 		 * If mode is unsupported or there's still no p-state support then
848 		 * fall back to favoring voltage.
849 		 *
850 		 * We don't actually support prefetch mode 2, so require that we
851 		 * at least support prefetch mode 1.
852 		 */
853 		context->bw_ctx.dml.soc.allow_dram_self_refresh_or_dram_clock_change_in_vblank =
854 					dm_allow_self_refresh;
855 		vlevel = dml_get_voltage_level(&context->bw_ctx.dml, pipes, pipe_cnt);
856 		if (vlevel > context->bw_ctx.dml.soc.num_states)
857 			goto validate_fail;
858 	}
859 
860 	vlevel = dcn20_validate_apply_pipe_split_flags(dc, context, vlevel, split, NULL);
861 
862 	for (i = 0, pipe_idx = 0; i < dc->res_pool->pipe_count; i++) {
863 		struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i];
864 		struct pipe_ctx *mpo_pipe = pipe->bottom_pipe;
865 		struct vba_vars_st *vba = &context->bw_ctx.dml.vba;
866 
867 		if (!pipe->stream)
868 			continue;
869 
870 		/* We only support full screen mpo with ODM */
871 		if (vba->ODMCombineEnabled[vba->pipe_plane[pipe_idx]] != dm_odm_combine_mode_disabled
872 				&& pipe->plane_state && mpo_pipe
873 				&& memcmp(&mpo_pipe->plane_res.scl_data.recout,
874 						&pipe->plane_res.scl_data.recout,
875 						sizeof(struct rect)) != 0) {
876 			ASSERT(mpo_pipe->plane_state != pipe->plane_state);
877 			goto validate_fail;
878 		}
879 		pipe_idx++;
880 	}
881 
882 	/*initialize pipe_just_split_from to invalid idx*/
883 	for (i = 0; i < MAX_PIPES; i++)
884 		pipe_split_from[i] = -1;
885 
886 	for (i = 0, pipe_idx = -1; i < dc->res_pool->pipe_count; i++) {
887 		struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i];
888 		struct pipe_ctx *hsplit_pipe = pipe->bottom_pipe;
889 
890 		if (!pipe->stream || pipe_split_from[i] >= 0)
891 			continue;
892 
893 		pipe_idx++;
894 
895 		if (!pipe->top_pipe && !pipe->plane_state && context->bw_ctx.dml.vba.ODMCombineEnabled[pipe_idx]) {
896 			hsplit_pipe = dcn20_find_secondary_pipe(dc, &context->res_ctx, dc->res_pool, pipe);
897 			ASSERT(hsplit_pipe);
898 			if (!dcn20_split_stream_for_odm(
899 					dc, &context->res_ctx,
900 					pipe, hsplit_pipe))
901 				goto validate_fail;
902 			pipe_split_from[hsplit_pipe->pipe_idx] = pipe_idx;
903 			dcn20_build_mapped_resource(dc, context, pipe->stream);
904 		}
905 
906 		if (!pipe->plane_state)
907 			continue;
908 		/* Skip 2nd half of already split pipe */
909 		if (pipe->top_pipe && pipe->plane_state == pipe->top_pipe->plane_state)
910 			continue;
911 
912 		if (split[i] == 2) {
913 			if (!hsplit_pipe || hsplit_pipe->plane_state != pipe->plane_state) {
914 				/* pipe not split previously needs split */
915 				hsplit_pipe = dcn20_find_secondary_pipe(dc, &context->res_ctx, dc->res_pool, pipe);
916 				ASSERT(hsplit_pipe);
917 				if (!hsplit_pipe) {
918 					DC_FP_START();
919 					dcn20_fpu_adjust_dppclk(&context->bw_ctx.dml.vba, vlevel, context->bw_ctx.dml.vba.maxMpcComb, pipe_idx, true);
920 					DC_FP_END();
921 					continue;
922 				}
923 				if (context->bw_ctx.dml.vba.ODMCombineEnabled[pipe_idx]) {
924 					if (!dcn20_split_stream_for_odm(
925 							dc, &context->res_ctx,
926 							pipe, hsplit_pipe))
927 						goto validate_fail;
928 					dcn20_build_mapped_resource(dc, context, pipe->stream);
929 				} else {
930 					dcn20_split_stream_for_mpc(
931 							&context->res_ctx, dc->res_pool,
932 							pipe, hsplit_pipe);
933 					resource_build_scaling_params(pipe);
934 					resource_build_scaling_params(hsplit_pipe);
935 				}
936 				pipe_split_from[hsplit_pipe->pipe_idx] = pipe_idx;
937 			}
938 		} else if (hsplit_pipe && hsplit_pipe->plane_state == pipe->plane_state) {
939 			/* merge should already have been done */
940 			ASSERT(0);
941 		}
942 	}
943 	/* Actual dsc count per stream dsc validation*/
944 	if (!dcn20_validate_dsc(dc, context)) {
945 		context->bw_ctx.dml.vba.ValidationStatus[context->bw_ctx.dml.vba.soc.num_states] =
946 				DML_FAIL_DSC_VALIDATION_FAILURE;
947 		goto validate_fail;
948 	}
949 
950 	*vlevel_out = vlevel;
951 
952 	out = true;
953 	goto validate_out;
954 
955 validate_fail:
956 	out = false;
957 
958 validate_out:
959 	return out;
960 }
961 
962 /*
963  * Some of the functions further below use the FPU, so we need to wrap this
964  * with DC_FP_START()/DC_FP_END(). Use the same approach as for
965  * dcn20_validate_bandwidth in dcn20_resource.c.
966  */
dcn21_validate_bandwidth(struct dc * dc,struct dc_state * context,bool fast_validate)967 static bool dcn21_validate_bandwidth(struct dc *dc, struct dc_state *context,
968 		bool fast_validate)
969 {
970 	bool voltage_supported;
971 	DC_FP_START();
972 	voltage_supported = dcn21_validate_bandwidth_fp(dc, context, fast_validate);
973 	DC_FP_END();
974 	return voltage_supported;
975 }
976 
dcn21_destroy_resource_pool(struct resource_pool ** pool)977 static void dcn21_destroy_resource_pool(struct resource_pool **pool)
978 {
979 	struct dcn21_resource_pool *dcn21_pool = TO_DCN21_RES_POOL(*pool);
980 
981 	dcn21_resource_destruct(dcn21_pool);
982 	kfree(dcn21_pool);
983 	*pool = NULL;
984 }
985 
dcn21_clock_source_create(struct dc_context * ctx,struct dc_bios * bios,enum clock_source_id id,const struct dce110_clk_src_regs * regs,bool dp_clk_src)986 static struct clock_source *dcn21_clock_source_create(
987 		struct dc_context *ctx,
988 		struct dc_bios *bios,
989 		enum clock_source_id id,
990 		const struct dce110_clk_src_regs *regs,
991 		bool dp_clk_src)
992 {
993 	struct dce110_clk_src *clk_src =
994 		kzalloc(sizeof(struct dce110_clk_src), GFP_KERNEL);
995 
996 	if (!clk_src)
997 		return NULL;
998 
999 	if (dcn20_clk_src_construct(clk_src, ctx, bios, id,
1000 			regs, &cs_shift, &cs_mask)) {
1001 		clk_src->base.dp_clk_src = dp_clk_src;
1002 		return &clk_src->base;
1003 	}
1004 
1005 	kfree(clk_src);
1006 	BREAK_TO_DEBUGGER();
1007 	return NULL;
1008 }
1009 
dcn21_hubp_create(struct dc_context * ctx,uint32_t inst)1010 static struct hubp *dcn21_hubp_create(
1011 	struct dc_context *ctx,
1012 	uint32_t inst)
1013 {
1014 	struct dcn21_hubp *hubp21 =
1015 		kzalloc(sizeof(struct dcn21_hubp), GFP_KERNEL);
1016 
1017 	if (!hubp21)
1018 		return NULL;
1019 
1020 	if (hubp21_construct(hubp21, ctx, inst,
1021 			&hubp_regs[inst], &hubp_shift, &hubp_mask))
1022 		return &hubp21->base;
1023 
1024 	BREAK_TO_DEBUGGER();
1025 	kfree(hubp21);
1026 	return NULL;
1027 }
1028 
dcn21_hubbub_create(struct dc_context * ctx)1029 static struct hubbub *dcn21_hubbub_create(struct dc_context *ctx)
1030 {
1031 	int i;
1032 
1033 	struct dcn20_hubbub *hubbub = kzalloc(sizeof(struct dcn20_hubbub),
1034 					  GFP_KERNEL);
1035 
1036 	if (!hubbub)
1037 		return NULL;
1038 
1039 	hubbub21_construct(hubbub, ctx,
1040 			&hubbub_reg,
1041 			&hubbub_shift,
1042 			&hubbub_mask);
1043 
1044 	for (i = 0; i < res_cap_rn.num_vmid; i++) {
1045 		struct dcn20_vmid *vmid = &hubbub->vmid[i];
1046 
1047 		vmid->ctx = ctx;
1048 
1049 		vmid->regs = &vmid_regs[i];
1050 		vmid->shifts = &vmid_shifts;
1051 		vmid->masks = &vmid_masks;
1052 	}
1053 	hubbub->num_vmid = res_cap_rn.num_vmid;
1054 
1055 	return &hubbub->base;
1056 }
1057 
dcn21_opp_create(struct dc_context * ctx,uint32_t inst)1058 static struct output_pixel_processor *dcn21_opp_create(struct dc_context *ctx,
1059 						       uint32_t inst)
1060 {
1061 	struct dcn20_opp *opp =
1062 		kzalloc(sizeof(struct dcn20_opp), GFP_KERNEL);
1063 
1064 	if (!opp) {
1065 		BREAK_TO_DEBUGGER();
1066 		return NULL;
1067 	}
1068 
1069 	dcn20_opp_construct(opp, ctx, inst,
1070 			&opp_regs[inst], &opp_shift, &opp_mask);
1071 	return &opp->base;
1072 }
1073 
dcn21_timing_generator_create(struct dc_context * ctx,uint32_t instance)1074 static struct timing_generator *dcn21_timing_generator_create(struct dc_context *ctx,
1075 							      uint32_t instance)
1076 {
1077 	struct optc *tgn10 =
1078 		kzalloc(sizeof(struct optc), GFP_KERNEL);
1079 
1080 	if (!tgn10)
1081 		return NULL;
1082 
1083 	tgn10->base.inst = instance;
1084 	tgn10->base.ctx = ctx;
1085 
1086 	tgn10->tg_regs = &tg_regs[instance];
1087 	tgn10->tg_shift = &tg_shift;
1088 	tgn10->tg_mask = &tg_mask;
1089 
1090 	dcn20_timing_generator_init(tgn10);
1091 
1092 	return &tgn10->base;
1093 }
1094 
dcn21_mpc_create(struct dc_context * ctx)1095 static struct mpc *dcn21_mpc_create(struct dc_context *ctx)
1096 {
1097 	struct dcn20_mpc *mpc20 = kzalloc(sizeof(struct dcn20_mpc),
1098 					  GFP_KERNEL);
1099 
1100 	if (!mpc20)
1101 		return NULL;
1102 
1103 	dcn20_mpc_construct(mpc20, ctx,
1104 			&mpc_regs,
1105 			&mpc_shift,
1106 			&mpc_mask,
1107 			6);
1108 
1109 	return &mpc20->base;
1110 }
1111 
read_dce_straps(struct dc_context * ctx,struct resource_straps * straps)1112 static void read_dce_straps(
1113 	struct dc_context *ctx,
1114 	struct resource_straps *straps)
1115 {
1116 	generic_reg_get(ctx, mmDC_PINSTRAPS + BASE(mmDC_PINSTRAPS_BASE_IDX),
1117 		FN(DC_PINSTRAPS, DC_PINSTRAPS_AUDIO), &straps->dc_pinstraps_audio);
1118 
1119 }
1120 
1121 
dcn21_dsc_create(struct dc_context * ctx,uint32_t inst)1122 static struct display_stream_compressor *dcn21_dsc_create(struct dc_context *ctx,
1123 							  uint32_t inst)
1124 {
1125 	struct dcn20_dsc *dsc =
1126 		kzalloc(sizeof(struct dcn20_dsc), GFP_KERNEL);
1127 
1128 	if (!dsc) {
1129 		BREAK_TO_DEBUGGER();
1130 		return NULL;
1131 	}
1132 
1133 	dsc2_construct(dsc, ctx, inst, &dsc_regs[inst], &dsc_shift, &dsc_mask);
1134 	return &dsc->base;
1135 }
1136 
dcn21_pp_smu_create(struct dc_context * ctx)1137 static struct pp_smu_funcs *dcn21_pp_smu_create(struct dc_context *ctx)
1138 {
1139 	struct pp_smu_funcs *pp_smu = kzalloc(sizeof(*pp_smu), GFP_KERNEL);
1140 
1141 	if (!pp_smu)
1142 		return pp_smu;
1143 
1144 	dm_pp_get_funcs(ctx, pp_smu);
1145 
1146 	if (pp_smu->ctx.ver != PP_SMU_VER_RN)
1147 		pp_smu = memset(pp_smu, 0, sizeof(struct pp_smu_funcs));
1148 
1149 
1150 	return pp_smu;
1151 }
1152 
dcn21_pp_smu_destroy(struct pp_smu_funcs ** pp_smu)1153 static void dcn21_pp_smu_destroy(struct pp_smu_funcs **pp_smu)
1154 {
1155 	if (pp_smu && *pp_smu) {
1156 		kfree(*pp_smu);
1157 		*pp_smu = NULL;
1158 	}
1159 }
1160 
dcn21_create_audio(struct dc_context * ctx,unsigned int inst)1161 static struct audio *dcn21_create_audio(
1162 		struct dc_context *ctx, unsigned int inst)
1163 {
1164 	return dce_audio_create(ctx, inst,
1165 			&audio_regs[inst], &audio_shift, &audio_mask);
1166 }
1167 
1168 static struct dc_cap_funcs cap_funcs = {
1169 	.get_dcc_compression_cap = dcn20_get_dcc_compression_cap
1170 };
1171 
dcn21_stream_encoder_create(enum engine_id eng_id,struct dc_context * ctx)1172 static struct stream_encoder *dcn21_stream_encoder_create(enum engine_id eng_id,
1173 							  struct dc_context *ctx)
1174 {
1175 	struct dcn10_stream_encoder *enc1 =
1176 		kzalloc(sizeof(struct dcn10_stream_encoder), GFP_KERNEL);
1177 
1178 	if (!enc1)
1179 		return NULL;
1180 
1181 	dcn20_stream_encoder_construct(enc1, ctx, ctx->dc_bios, eng_id,
1182 					&stream_enc_regs[eng_id],
1183 					&se_shift, &se_mask);
1184 
1185 	return &enc1->base;
1186 }
1187 
1188 static const struct dce_hwseq_registers hwseq_reg = {
1189 		HWSEQ_DCN21_REG_LIST()
1190 };
1191 
1192 static const struct dce_hwseq_shift hwseq_shift = {
1193 		HWSEQ_DCN21_MASK_SH_LIST(__SHIFT)
1194 };
1195 
1196 static const struct dce_hwseq_mask hwseq_mask = {
1197 		HWSEQ_DCN21_MASK_SH_LIST(_MASK)
1198 };
1199 
dcn21_hwseq_create(struct dc_context * ctx)1200 static struct dce_hwseq *dcn21_hwseq_create(
1201 	struct dc_context *ctx)
1202 {
1203 	struct dce_hwseq *hws = kzalloc(sizeof(struct dce_hwseq), GFP_KERNEL);
1204 
1205 	if (hws) {
1206 		hws->ctx = ctx;
1207 		hws->regs = &hwseq_reg;
1208 		hws->shifts = &hwseq_shift;
1209 		hws->masks = &hwseq_mask;
1210 		hws->wa.DEGVIDCN21 = true;
1211 		hws->wa.disallow_self_refresh_during_multi_plane_transition = true;
1212 	}
1213 	return hws;
1214 }
1215 
1216 static const struct resource_create_funcs res_create_funcs = {
1217 	.read_dce_straps = read_dce_straps,
1218 	.create_audio = dcn21_create_audio,
1219 	.create_stream_encoder = dcn21_stream_encoder_create,
1220 	.create_hwseq = dcn21_hwseq_create,
1221 };
1222 
1223 static const struct resource_create_funcs res_create_maximus_funcs = {
1224 	.read_dce_straps = NULL,
1225 	.create_audio = NULL,
1226 	.create_stream_encoder = NULL,
1227 	.create_hwseq = dcn21_hwseq_create,
1228 };
1229 
1230 static const struct encoder_feature_support link_enc_feature = {
1231 		.max_hdmi_deep_color = COLOR_DEPTH_121212,
1232 		.max_hdmi_pixel_clock = 600000,
1233 		.hdmi_ycbcr420_supported = true,
1234 		.dp_ycbcr420_supported = true,
1235 		.fec_supported = true,
1236 		.flags.bits.IS_HBR2_CAPABLE = true,
1237 		.flags.bits.IS_HBR3_CAPABLE = true,
1238 		.flags.bits.IS_TPS3_CAPABLE = true,
1239 		.flags.bits.IS_TPS4_CAPABLE = true
1240 };
1241 
1242 
1243 #define link_regs(id, phyid)\
1244 [id] = {\
1245 	LE_DCN2_REG_LIST(id), \
1246 	UNIPHY_DCN2_REG_LIST(phyid), \
1247 	DPCS_DCN21_REG_LIST(id), \
1248 	SRI(DP_DPHY_INTERNAL_CTRL, DP, id) \
1249 }
1250 
1251 static const struct dcn10_link_enc_registers link_enc_regs[] = {
1252 	link_regs(0, A),
1253 	link_regs(1, B),
1254 	link_regs(2, C),
1255 	link_regs(3, D),
1256 	link_regs(4, E),
1257 };
1258 
1259 static const struct dce_panel_cntl_registers panel_cntl_regs[] = {
1260 	{ DCN_PANEL_CNTL_REG_LIST() }
1261 };
1262 
1263 static const struct dce_panel_cntl_shift panel_cntl_shift = {
1264 	DCE_PANEL_CNTL_MASK_SH_LIST(__SHIFT)
1265 };
1266 
1267 static const struct dce_panel_cntl_mask panel_cntl_mask = {
1268 	DCE_PANEL_CNTL_MASK_SH_LIST(_MASK)
1269 };
1270 
1271 #define aux_regs(id)\
1272 [id] = {\
1273 	DCN2_AUX_REG_LIST(id)\
1274 }
1275 
1276 static const struct dcn10_link_enc_aux_registers link_enc_aux_regs[] = {
1277 		aux_regs(0),
1278 		aux_regs(1),
1279 		aux_regs(2),
1280 		aux_regs(3),
1281 		aux_regs(4)
1282 };
1283 
1284 #define hpd_regs(id)\
1285 [id] = {\
1286 	HPD_REG_LIST(id)\
1287 }
1288 
1289 static const struct dcn10_link_enc_hpd_registers link_enc_hpd_regs[] = {
1290 		hpd_regs(0),
1291 		hpd_regs(1),
1292 		hpd_regs(2),
1293 		hpd_regs(3),
1294 		hpd_regs(4)
1295 };
1296 
1297 static const struct dcn10_link_enc_shift le_shift = {
1298 	LINK_ENCODER_MASK_SH_LIST_DCN20(__SHIFT),\
1299 	DPCS_DCN21_MASK_SH_LIST(__SHIFT)
1300 };
1301 
1302 static const struct dcn10_link_enc_mask le_mask = {
1303 	LINK_ENCODER_MASK_SH_LIST_DCN20(_MASK),\
1304 	DPCS_DCN21_MASK_SH_LIST(_MASK)
1305 };
1306 
map_transmitter_id_to_phy_instance(enum transmitter transmitter)1307 static int map_transmitter_id_to_phy_instance(
1308 	enum transmitter transmitter)
1309 {
1310 	switch (transmitter) {
1311 	case TRANSMITTER_UNIPHY_A:
1312 		return 0;
1313 	break;
1314 	case TRANSMITTER_UNIPHY_B:
1315 		return 1;
1316 	break;
1317 	case TRANSMITTER_UNIPHY_C:
1318 		return 2;
1319 	break;
1320 	case TRANSMITTER_UNIPHY_D:
1321 		return 3;
1322 	break;
1323 	case TRANSMITTER_UNIPHY_E:
1324 		return 4;
1325 	break;
1326 	default:
1327 		ASSERT(0);
1328 		return 0;
1329 	}
1330 }
1331 
dcn21_link_encoder_create(struct dc_context * ctx,const struct encoder_init_data * enc_init_data)1332 static struct link_encoder *dcn21_link_encoder_create(
1333 	struct dc_context *ctx,
1334 	const struct encoder_init_data *enc_init_data)
1335 {
1336 	struct dcn21_link_encoder *enc21 =
1337 		kzalloc(sizeof(struct dcn21_link_encoder), GFP_KERNEL);
1338 	int link_regs_id;
1339 
1340 	if (!enc21)
1341 		return NULL;
1342 
1343 	link_regs_id =
1344 		map_transmitter_id_to_phy_instance(enc_init_data->transmitter);
1345 
1346 	dcn21_link_encoder_construct(enc21,
1347 				      enc_init_data,
1348 				      &link_enc_feature,
1349 				      &link_enc_regs[link_regs_id],
1350 				      &link_enc_aux_regs[enc_init_data->channel - 1],
1351 				      &link_enc_hpd_regs[enc_init_data->hpd_source],
1352 				      &le_shift,
1353 				      &le_mask);
1354 
1355 	return &enc21->enc10.base;
1356 }
1357 
dcn21_panel_cntl_create(const struct panel_cntl_init_data * init_data)1358 static struct panel_cntl *dcn21_panel_cntl_create(const struct panel_cntl_init_data *init_data)
1359 {
1360 	struct dce_panel_cntl *panel_cntl =
1361 		kzalloc(sizeof(struct dce_panel_cntl), GFP_KERNEL);
1362 
1363 	if (!panel_cntl)
1364 		return NULL;
1365 
1366 	dce_panel_cntl_construct(panel_cntl,
1367 			init_data,
1368 			&panel_cntl_regs[init_data->inst],
1369 			&panel_cntl_shift,
1370 			&panel_cntl_mask);
1371 
1372 	return &panel_cntl->base;
1373 }
1374 
dcn21_get_panel_config_defaults(struct dc_panel_config * panel_config)1375 static void dcn21_get_panel_config_defaults(struct dc_panel_config *panel_config)
1376 {
1377 	*panel_config = panel_config_defaults;
1378 }
1379 
1380 #define CTX ctx
1381 
1382 #define REG(reg_name) \
1383 	(DCN_BASE.instance[0].segment[mm ## reg_name ## _BASE_IDX] + mm ## reg_name)
1384 
read_pipe_fuses(struct dc_context * ctx)1385 static uint32_t read_pipe_fuses(struct dc_context *ctx)
1386 {
1387 	uint32_t value = REG_READ(CC_DC_PIPE_DIS);
1388 	/* RV1 support max 4 pipes */
1389 	value = value & 0xf;
1390 	return value;
1391 }
1392 
dcn21_patch_unknown_plane_state(struct dc_plane_state * plane_state)1393 static enum dc_status dcn21_patch_unknown_plane_state(struct dc_plane_state *plane_state)
1394 {
1395 	enum dc_status result = DC_OK;
1396 
1397 	if (plane_state->ctx->dc->debug.disable_dcc == DCC_ENABLE) {
1398 		plane_state->dcc.enable = 1;
1399 		/* align to our worst case block width */
1400 		plane_state->dcc.meta_pitch = ((plane_state->src_rect.width + 1023) / 1024) * 1024;
1401 	}
1402 	result = dcn20_patch_unknown_plane_state(plane_state);
1403 	return result;
1404 }
1405 
1406 static const struct resource_funcs dcn21_res_pool_funcs = {
1407 	.destroy = dcn21_destroy_resource_pool,
1408 	.link_enc_create = dcn21_link_encoder_create,
1409 	.panel_cntl_create = dcn21_panel_cntl_create,
1410 	.validate_bandwidth = dcn21_validate_bandwidth,
1411 	.populate_dml_pipes = dcn21_populate_dml_pipes_from_context,
1412 	.add_stream_to_ctx = dcn20_add_stream_to_ctx,
1413 	.add_dsc_to_stream_resource = dcn20_add_dsc_to_stream_resource,
1414 	.remove_stream_from_ctx = dcn20_remove_stream_from_ctx,
1415 	.acquire_idle_pipe_for_layer = dcn20_acquire_idle_pipe_for_layer,
1416 	.populate_dml_writeback_from_context = dcn20_populate_dml_writeback_from_context,
1417 	.patch_unknown_plane_state = dcn21_patch_unknown_plane_state,
1418 	.set_mcif_arb_params = dcn20_set_mcif_arb_params,
1419 	.find_first_free_match_stream_enc_for_link = dcn10_find_first_free_match_stream_enc_for_link,
1420 	.update_bw_bounding_box = dcn21_update_bw_bounding_box,
1421 	.get_panel_config_defaults = dcn21_get_panel_config_defaults,
1422 };
1423 
dcn21_resource_construct(uint8_t num_virtual_links,struct dc * dc,struct dcn21_resource_pool * pool)1424 static bool dcn21_resource_construct(
1425 	uint8_t num_virtual_links,
1426 	struct dc *dc,
1427 	struct dcn21_resource_pool *pool)
1428 {
1429 	int i, j;
1430 	struct dc_context *ctx = dc->ctx;
1431 	struct irq_service_init_data init_data;
1432 	uint32_t pipe_fuses = read_pipe_fuses(ctx);
1433 	uint32_t num_pipes;
1434 
1435 	ctx->dc_bios->regs = &bios_regs;
1436 
1437 	pool->base.res_cap = &res_cap_rn;
1438 #ifdef DIAGS_BUILD
1439 	if (IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment))
1440 		//pool->base.res_cap = &res_cap_nv10_FPGA_2pipe_dsc;
1441 		pool->base.res_cap = &res_cap_rn_FPGA_4pipe;
1442 #endif
1443 
1444 	pool->base.funcs = &dcn21_res_pool_funcs;
1445 
1446 	/*************************************************
1447 	 *  Resource + asic cap harcoding                *
1448 	 *************************************************/
1449 	pool->base.underlay_pipe_index = NO_UNDERLAY_PIPE;
1450 
1451 	/* max pipe num for ASIC before check pipe fuses */
1452 	pool->base.pipe_count = pool->base.res_cap->num_timing_generator;
1453 
1454 	dc->caps.max_downscale_ratio = 200;
1455 	dc->caps.i2c_speed_in_khz = 100;
1456 	dc->caps.i2c_speed_in_khz_hdcp = 5; /*1.4 w/a applied by default*/
1457 	dc->caps.max_cursor_size = 256;
1458 	dc->caps.min_horizontal_blanking_period = 80;
1459 	dc->caps.dmdata_alloc_size = 2048;
1460 
1461 	dc->caps.max_slave_planes = 1;
1462 	dc->caps.max_slave_yuv_planes = 1;
1463 	dc->caps.max_slave_rgb_planes = 1;
1464 	dc->caps.post_blend_color_processing = true;
1465 	dc->caps.force_dp_tps4_for_cp2520 = true;
1466 	dc->caps.extended_aux_timeout_support = true;
1467 	dc->caps.dmcub_support = true;
1468 	dc->caps.is_apu = true;
1469 
1470 	/* Color pipeline capabilities */
1471 	dc->caps.color.dpp.dcn_arch = 1;
1472 	dc->caps.color.dpp.input_lut_shared = 0;
1473 	dc->caps.color.dpp.icsc = 1;
1474 	dc->caps.color.dpp.dgam_ram = 1;
1475 	dc->caps.color.dpp.dgam_rom_caps.srgb = 1;
1476 	dc->caps.color.dpp.dgam_rom_caps.bt2020 = 1;
1477 	dc->caps.color.dpp.dgam_rom_caps.gamma2_2 = 0;
1478 	dc->caps.color.dpp.dgam_rom_caps.pq = 0;
1479 	dc->caps.color.dpp.dgam_rom_caps.hlg = 0;
1480 	dc->caps.color.dpp.post_csc = 0;
1481 	dc->caps.color.dpp.gamma_corr = 0;
1482 	dc->caps.color.dpp.dgam_rom_for_yuv = 1;
1483 
1484 	dc->caps.color.dpp.hw_3d_lut = 1;
1485 	dc->caps.color.dpp.ogam_ram = 1;
1486 	// no OGAM ROM on DCN2
1487 	dc->caps.color.dpp.ogam_rom_caps.srgb = 0;
1488 	dc->caps.color.dpp.ogam_rom_caps.bt2020 = 0;
1489 	dc->caps.color.dpp.ogam_rom_caps.gamma2_2 = 0;
1490 	dc->caps.color.dpp.ogam_rom_caps.pq = 0;
1491 	dc->caps.color.dpp.ogam_rom_caps.hlg = 0;
1492 	dc->caps.color.dpp.ocsc = 0;
1493 
1494 	dc->caps.color.mpc.gamut_remap = 0;
1495 	dc->caps.color.mpc.num_3dluts = 0;
1496 	dc->caps.color.mpc.shared_3d_lut = 0;
1497 	dc->caps.color.mpc.ogam_ram = 1;
1498 	dc->caps.color.mpc.ogam_rom_caps.srgb = 0;
1499 	dc->caps.color.mpc.ogam_rom_caps.bt2020 = 0;
1500 	dc->caps.color.mpc.ogam_rom_caps.gamma2_2 = 0;
1501 	dc->caps.color.mpc.ogam_rom_caps.pq = 0;
1502 	dc->caps.color.mpc.ogam_rom_caps.hlg = 0;
1503 	dc->caps.color.mpc.ocsc = 1;
1504 
1505 	dc->caps.dp_hdmi21_pcon_support = true;
1506 
1507 	if (dc->ctx->dce_environment == DCE_ENV_PRODUCTION_DRV)
1508 		dc->debug = debug_defaults_drv;
1509 	else if (dc->ctx->dce_environment == DCE_ENV_FPGA_MAXIMUS) {
1510 		pool->base.pipe_count = 4;
1511 		dc->debug = debug_defaults_diags;
1512 	} else
1513 		dc->debug = debug_defaults_diags;
1514 
1515 	// Init the vm_helper
1516 	if (dc->vm_helper)
1517 		vm_helper_init(dc->vm_helper, 16);
1518 
1519 	/*************************************************
1520 	 *  Create resources                             *
1521 	 *************************************************/
1522 
1523 	pool->base.clock_sources[DCN20_CLK_SRC_PLL0] =
1524 			dcn21_clock_source_create(ctx, ctx->dc_bios,
1525 				CLOCK_SOURCE_COMBO_PHY_PLL0,
1526 				&clk_src_regs[0], false);
1527 	pool->base.clock_sources[DCN20_CLK_SRC_PLL1] =
1528 			dcn21_clock_source_create(ctx, ctx->dc_bios,
1529 				CLOCK_SOURCE_COMBO_PHY_PLL1,
1530 				&clk_src_regs[1], false);
1531 	pool->base.clock_sources[DCN20_CLK_SRC_PLL2] =
1532 			dcn21_clock_source_create(ctx, ctx->dc_bios,
1533 				CLOCK_SOURCE_COMBO_PHY_PLL2,
1534 				&clk_src_regs[2], false);
1535 	pool->base.clock_sources[DCN20_CLK_SRC_PLL3] =
1536 			dcn21_clock_source_create(ctx, ctx->dc_bios,
1537 				CLOCK_SOURCE_COMBO_PHY_PLL3,
1538 				&clk_src_regs[3], false);
1539 	pool->base.clock_sources[DCN20_CLK_SRC_PLL4] =
1540 			dcn21_clock_source_create(ctx, ctx->dc_bios,
1541 				CLOCK_SOURCE_COMBO_PHY_PLL4,
1542 				&clk_src_regs[4], false);
1543 
1544 	pool->base.clk_src_count = DCN20_CLK_SRC_TOTAL_DCN21;
1545 
1546 	/* todo: not reuse phy_pll registers */
1547 	pool->base.dp_clock_source =
1548 			dcn21_clock_source_create(ctx, ctx->dc_bios,
1549 				CLOCK_SOURCE_ID_DP_DTO,
1550 				&clk_src_regs[0], true);
1551 
1552 	for (i = 0; i < pool->base.clk_src_count; i++) {
1553 		if (pool->base.clock_sources[i] == NULL) {
1554 			dm_error("DC: failed to create clock sources!\n");
1555 			BREAK_TO_DEBUGGER();
1556 			goto create_fail;
1557 		}
1558 	}
1559 
1560 	pool->base.dccg = dccg21_create(ctx, &dccg_regs, &dccg_shift, &dccg_mask);
1561 	if (pool->base.dccg == NULL) {
1562 		dm_error("DC: failed to create dccg!\n");
1563 		BREAK_TO_DEBUGGER();
1564 		goto create_fail;
1565 	}
1566 
1567 	if (!dc->config.disable_dmcu) {
1568 		pool->base.dmcu = dcn21_dmcu_create(ctx,
1569 				&dmcu_regs,
1570 				&dmcu_shift,
1571 				&dmcu_mask);
1572 		if (pool->base.dmcu == NULL) {
1573 			dm_error("DC: failed to create dmcu!\n");
1574 			BREAK_TO_DEBUGGER();
1575 			goto create_fail;
1576 		}
1577 
1578 		dc->debug.dmub_command_table = false;
1579 	}
1580 
1581 	if (dc->config.disable_dmcu) {
1582 		pool->base.psr = dmub_psr_create(ctx);
1583 
1584 		if (pool->base.psr == NULL) {
1585 			dm_error("DC: failed to create psr obj!\n");
1586 			BREAK_TO_DEBUGGER();
1587 			goto create_fail;
1588 		}
1589 	}
1590 
1591 	if (dc->config.disable_dmcu)
1592 		pool->base.abm = dmub_abm_create(ctx,
1593 			&abm_regs,
1594 			&abm_shift,
1595 			&abm_mask);
1596 	else
1597 		pool->base.abm = dce_abm_create(ctx,
1598 			&abm_regs,
1599 			&abm_shift,
1600 			&abm_mask);
1601 
1602 	pool->base.pp_smu = dcn21_pp_smu_create(ctx);
1603 
1604 	num_pipes = dcn2_1_ip.max_num_dpp;
1605 
1606 	for (i = 0; i < dcn2_1_ip.max_num_dpp; i++)
1607 		if (pipe_fuses & 1 << i)
1608 			num_pipes--;
1609 	dcn2_1_ip.max_num_dpp = num_pipes;
1610 	dcn2_1_ip.max_num_otg = num_pipes;
1611 
1612 	dml_init_instance(&dc->dml, &dcn2_1_soc, &dcn2_1_ip, DML_PROJECT_DCN21);
1613 
1614 	init_data.ctx = dc->ctx;
1615 	pool->base.irqs = dal_irq_service_dcn21_create(&init_data);
1616 	if (!pool->base.irqs)
1617 		goto create_fail;
1618 
1619 	j = 0;
1620 	/* mem input -> ipp -> dpp -> opp -> TG */
1621 	for (i = 0; i < pool->base.pipe_count; i++) {
1622 		/* if pipe is disabled, skip instance of HW pipe,
1623 		 * i.e, skip ASIC register instance
1624 		 */
1625 		if ((pipe_fuses & (1 << i)) != 0)
1626 			continue;
1627 
1628 		pool->base.hubps[j] = dcn21_hubp_create(ctx, i);
1629 		if (pool->base.hubps[j] == NULL) {
1630 			BREAK_TO_DEBUGGER();
1631 			dm_error(
1632 				"DC: failed to create memory input!\n");
1633 			goto create_fail;
1634 		}
1635 
1636 		pool->base.ipps[j] = dcn21_ipp_create(ctx, i);
1637 		if (pool->base.ipps[j] == NULL) {
1638 			BREAK_TO_DEBUGGER();
1639 			dm_error(
1640 				"DC: failed to create input pixel processor!\n");
1641 			goto create_fail;
1642 		}
1643 
1644 		pool->base.dpps[j] = dcn21_dpp_create(ctx, i);
1645 		if (pool->base.dpps[j] == NULL) {
1646 			BREAK_TO_DEBUGGER();
1647 			dm_error(
1648 				"DC: failed to create dpps!\n");
1649 			goto create_fail;
1650 		}
1651 
1652 		pool->base.opps[j] = dcn21_opp_create(ctx, i);
1653 		if (pool->base.opps[j] == NULL) {
1654 			BREAK_TO_DEBUGGER();
1655 			dm_error(
1656 				"DC: failed to create output pixel processor!\n");
1657 			goto create_fail;
1658 		}
1659 
1660 		pool->base.timing_generators[j] = dcn21_timing_generator_create(
1661 				ctx, i);
1662 		if (pool->base.timing_generators[j] == NULL) {
1663 			BREAK_TO_DEBUGGER();
1664 			dm_error("DC: failed to create tg!\n");
1665 			goto create_fail;
1666 		}
1667 		j++;
1668 	}
1669 
1670 	for (i = 0; i < pool->base.res_cap->num_ddc; i++) {
1671 		pool->base.engines[i] = dcn21_aux_engine_create(ctx, i);
1672 		if (pool->base.engines[i] == NULL) {
1673 			BREAK_TO_DEBUGGER();
1674 			dm_error(
1675 				"DC:failed to create aux engine!!\n");
1676 			goto create_fail;
1677 		}
1678 		pool->base.hw_i2cs[i] = dcn21_i2c_hw_create(ctx, i);
1679 		if (pool->base.hw_i2cs[i] == NULL) {
1680 			BREAK_TO_DEBUGGER();
1681 			dm_error(
1682 				"DC:failed to create hw i2c!!\n");
1683 			goto create_fail;
1684 		}
1685 		pool->base.sw_i2cs[i] = NULL;
1686 	}
1687 
1688 	pool->base.timing_generator_count = j;
1689 	pool->base.pipe_count = j;
1690 	pool->base.mpcc_count = j;
1691 
1692 	pool->base.mpc = dcn21_mpc_create(ctx);
1693 	if (pool->base.mpc == NULL) {
1694 		BREAK_TO_DEBUGGER();
1695 		dm_error("DC: failed to create mpc!\n");
1696 		goto create_fail;
1697 	}
1698 
1699 	pool->base.hubbub = dcn21_hubbub_create(ctx);
1700 	if (pool->base.hubbub == NULL) {
1701 		BREAK_TO_DEBUGGER();
1702 		dm_error("DC: failed to create hubbub!\n");
1703 		goto create_fail;
1704 	}
1705 
1706 	for (i = 0; i < pool->base.res_cap->num_dsc; i++) {
1707 		pool->base.dscs[i] = dcn21_dsc_create(ctx, i);
1708 		if (pool->base.dscs[i] == NULL) {
1709 			BREAK_TO_DEBUGGER();
1710 			dm_error("DC: failed to create display stream compressor %d!\n", i);
1711 			goto create_fail;
1712 		}
1713 	}
1714 
1715 	if (!dcn20_dwbc_create(ctx, &pool->base)) {
1716 		BREAK_TO_DEBUGGER();
1717 		dm_error("DC: failed to create dwbc!\n");
1718 		goto create_fail;
1719 	}
1720 	if (!dcn20_mmhubbub_create(ctx, &pool->base)) {
1721 		BREAK_TO_DEBUGGER();
1722 		dm_error("DC: failed to create mcif_wb!\n");
1723 		goto create_fail;
1724 	}
1725 
1726 	if (!resource_construct(num_virtual_links, dc, &pool->base,
1727 			(!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment) ?
1728 			&res_create_funcs : &res_create_maximus_funcs)))
1729 			goto create_fail;
1730 
1731 	dcn21_hw_sequencer_construct(dc);
1732 
1733 	dc->caps.max_planes =  pool->base.pipe_count;
1734 
1735 	for (i = 0; i < dc->caps.max_planes; ++i)
1736 		dc->caps.planes[i] = plane_cap;
1737 
1738 	dc->cap_funcs = cap_funcs;
1739 
1740 	return true;
1741 
1742 create_fail:
1743 
1744 	dcn21_resource_destruct(pool);
1745 
1746 	return false;
1747 }
1748 
dcn21_create_resource_pool(const struct dc_init_data * init_data,struct dc * dc)1749 struct resource_pool *dcn21_create_resource_pool(
1750 		const struct dc_init_data *init_data,
1751 		struct dc *dc)
1752 {
1753 	struct dcn21_resource_pool *pool =
1754 		kzalloc(sizeof(struct dcn21_resource_pool), GFP_KERNEL);
1755 
1756 	if (!pool)
1757 		return NULL;
1758 
1759 	if (dcn21_resource_construct(init_data->num_virtual_links, dc, pool))
1760 		return &pool->base;
1761 
1762 	BREAK_TO_DEBUGGER();
1763 	kfree(pool);
1764 	return NULL;
1765 }
1766