1 /*
2  * Copyright 2016 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 #include <linux/delay.h>
26 
27 #include "dm_services.h"
28 #include "basics/dc_common.h"
29 #include "dm_helpers.h"
30 #include "core_types.h"
31 #include "resource.h"
32 #include "dcn20_resource.h"
33 #include "dcn20_hwseq.h"
34 #include "dce/dce_hwseq.h"
35 #include "dcn20_dsc.h"
36 #include "dcn20_optc.h"
37 #include "abm.h"
38 #include "clk_mgr.h"
39 #include "dmcu.h"
40 #include "hubp.h"
41 #include "timing_generator.h"
42 #include "opp.h"
43 #include "ipp.h"
44 #include "mpc.h"
45 #include "mcif_wb.h"
46 #include "dchubbub.h"
47 #include "reg_helper.h"
48 #include "dcn10/dcn10_cm_common.h"
49 #include "dc_link_dp.h"
50 #include "vm_helper.h"
51 #include "dccg.h"
52 
53 #define DC_LOGGER_INIT(logger)
54 
55 #define CTX \
56 	hws->ctx
57 #define REG(reg)\
58 	hws->regs->reg
59 
60 #undef FN
61 #define FN(reg_name, field_name) \
62 	hws->shifts->field_name, hws->masks->field_name
63 
64 static int find_free_gsl_group(const struct dc *dc)
65 {
66 	if (dc->res_pool->gsl_groups.gsl_0 == 0)
67 		return 1;
68 	if (dc->res_pool->gsl_groups.gsl_1 == 0)
69 		return 2;
70 	if (dc->res_pool->gsl_groups.gsl_2 == 0)
71 		return 3;
72 
73 	return 0;
74 }
75 
76 /* NOTE: This is not a generic setup_gsl function (hence the suffix as_lock)
77  * This is only used to lock pipes in pipe splitting case with immediate flip
78  * Ordinary MPC/OTG locks suppress VUPDATE which doesn't help with immediate,
79  * so we get tearing with freesync since we cannot flip multiple pipes
80  * atomically.
81  * We use GSL for this:
82  * - immediate flip: find first available GSL group if not already assigned
83  *                   program gsl with that group, set current OTG as master
84  *                   and always us 0x4 = AND of flip_ready from all pipes
85  * - vsync flip: disable GSL if used
86  *
87  * Groups in stream_res are stored as +1 from HW registers, i.e.
88  * gsl_0 <=> pipe_ctx->stream_res.gsl_group == 1
89  * Using a magic value like -1 would require tracking all inits/resets
90  */
91 static void dcn20_setup_gsl_group_as_lock(
92 		const struct dc *dc,
93 		struct pipe_ctx *pipe_ctx,
94 		bool enable)
95 {
96 	struct gsl_params gsl;
97 	int group_idx;
98 
99 	memset(&gsl, 0, sizeof(struct gsl_params));
100 
101 	if (enable) {
102 		/* return if group already assigned since GSL was set up
103 		 * for vsync flip, we would unassign so it can't be "left over"
104 		 */
105 		if (pipe_ctx->stream_res.gsl_group > 0)
106 			return;
107 
108 		group_idx = find_free_gsl_group(dc);
109 		ASSERT(group_idx != 0);
110 		pipe_ctx->stream_res.gsl_group = group_idx;
111 
112 		/* set gsl group reg field and mark resource used */
113 		switch (group_idx) {
114 		case 1:
115 			gsl.gsl0_en = 1;
116 			dc->res_pool->gsl_groups.gsl_0 = 1;
117 			break;
118 		case 2:
119 			gsl.gsl1_en = 1;
120 			dc->res_pool->gsl_groups.gsl_1 = 1;
121 			break;
122 		case 3:
123 			gsl.gsl2_en = 1;
124 			dc->res_pool->gsl_groups.gsl_2 = 1;
125 			break;
126 		default:
127 			BREAK_TO_DEBUGGER();
128 			return; // invalid case
129 		}
130 		gsl.gsl_master_en = 1;
131 	} else {
132 		group_idx = pipe_ctx->stream_res.gsl_group;
133 		if (group_idx == 0)
134 			return; // if not in use, just return
135 
136 		pipe_ctx->stream_res.gsl_group = 0;
137 
138 		/* unset gsl group reg field and mark resource free */
139 		switch (group_idx) {
140 		case 1:
141 			gsl.gsl0_en = 0;
142 			dc->res_pool->gsl_groups.gsl_0 = 0;
143 			break;
144 		case 2:
145 			gsl.gsl1_en = 0;
146 			dc->res_pool->gsl_groups.gsl_1 = 0;
147 			break;
148 		case 3:
149 			gsl.gsl2_en = 0;
150 			dc->res_pool->gsl_groups.gsl_2 = 0;
151 			break;
152 		default:
153 			BREAK_TO_DEBUGGER();
154 			return;
155 		}
156 		gsl.gsl_master_en = 0;
157 	}
158 
159 	/* at this point we want to program whether it's to enable or disable */
160 	if (pipe_ctx->stream_res.tg->funcs->set_gsl != NULL &&
161 		pipe_ctx->stream_res.tg->funcs->set_gsl_source_select != NULL) {
162 		pipe_ctx->stream_res.tg->funcs->set_gsl(
163 			pipe_ctx->stream_res.tg,
164 			&gsl);
165 
166 		pipe_ctx->stream_res.tg->funcs->set_gsl_source_select(
167 			pipe_ctx->stream_res.tg, group_idx,	enable ? 4 : 0);
168 	} else
169 		BREAK_TO_DEBUGGER();
170 }
171 
172 void dcn20_set_flip_control_gsl(
173 		struct pipe_ctx *pipe_ctx,
174 		bool flip_immediate)
175 {
176 	if (pipe_ctx && pipe_ctx->plane_res.hubp->funcs->hubp_set_flip_control_surface_gsl)
177 		pipe_ctx->plane_res.hubp->funcs->hubp_set_flip_control_surface_gsl(
178 				pipe_ctx->plane_res.hubp, flip_immediate);
179 
180 }
181 
182 void dcn20_enable_power_gating_plane(
183 	struct dce_hwseq *hws,
184 	bool enable)
185 {
186 	bool force_on = true; /* disable power gating */
187 
188 	if (enable)
189 		force_on = false;
190 
191 	/* DCHUBP0/1/2/3/4/5 */
192 	REG_UPDATE(DOMAIN0_PG_CONFIG, DOMAIN0_POWER_FORCEON, force_on);
193 	REG_UPDATE(DOMAIN2_PG_CONFIG, DOMAIN2_POWER_FORCEON, force_on);
194 	REG_UPDATE(DOMAIN4_PG_CONFIG, DOMAIN4_POWER_FORCEON, force_on);
195 	REG_UPDATE(DOMAIN6_PG_CONFIG, DOMAIN6_POWER_FORCEON, force_on);
196 	if (REG(DOMAIN8_PG_CONFIG))
197 		REG_UPDATE(DOMAIN8_PG_CONFIG, DOMAIN8_POWER_FORCEON, force_on);
198 	if (REG(DOMAIN10_PG_CONFIG))
199 		REG_UPDATE(DOMAIN10_PG_CONFIG, DOMAIN8_POWER_FORCEON, force_on);
200 
201 	/* DPP0/1/2/3/4/5 */
202 	REG_UPDATE(DOMAIN1_PG_CONFIG, DOMAIN1_POWER_FORCEON, force_on);
203 	REG_UPDATE(DOMAIN3_PG_CONFIG, DOMAIN3_POWER_FORCEON, force_on);
204 	REG_UPDATE(DOMAIN5_PG_CONFIG, DOMAIN5_POWER_FORCEON, force_on);
205 	REG_UPDATE(DOMAIN7_PG_CONFIG, DOMAIN7_POWER_FORCEON, force_on);
206 	if (REG(DOMAIN9_PG_CONFIG))
207 		REG_UPDATE(DOMAIN9_PG_CONFIG, DOMAIN9_POWER_FORCEON, force_on);
208 	if (REG(DOMAIN11_PG_CONFIG))
209 		REG_UPDATE(DOMAIN11_PG_CONFIG, DOMAIN9_POWER_FORCEON, force_on);
210 
211 	/* DCS0/1/2/3/4/5 */
212 	REG_UPDATE(DOMAIN16_PG_CONFIG, DOMAIN16_POWER_FORCEON, force_on);
213 	REG_UPDATE(DOMAIN17_PG_CONFIG, DOMAIN17_POWER_FORCEON, force_on);
214 	REG_UPDATE(DOMAIN18_PG_CONFIG, DOMAIN18_POWER_FORCEON, force_on);
215 	if (REG(DOMAIN19_PG_CONFIG))
216 		REG_UPDATE(DOMAIN19_PG_CONFIG, DOMAIN19_POWER_FORCEON, force_on);
217 	if (REG(DOMAIN20_PG_CONFIG))
218 		REG_UPDATE(DOMAIN20_PG_CONFIG, DOMAIN20_POWER_FORCEON, force_on);
219 	if (REG(DOMAIN21_PG_CONFIG))
220 		REG_UPDATE(DOMAIN21_PG_CONFIG, DOMAIN21_POWER_FORCEON, force_on);
221 }
222 
223 void dcn20_dccg_init(struct dce_hwseq *hws)
224 {
225 	/*
226 	 * set MICROSECOND_TIME_BASE_DIV
227 	 * 100Mhz refclk -> 0x120264
228 	 * 27Mhz refclk -> 0x12021b
229 	 * 48Mhz refclk -> 0x120230
230 	 *
231 	 */
232 	REG_WRITE(MICROSECOND_TIME_BASE_DIV, 0x120264);
233 
234 	/*
235 	 * set MILLISECOND_TIME_BASE_DIV
236 	 * 100Mhz refclk -> 0x1186a0
237 	 * 27Mhz refclk -> 0x106978
238 	 * 48Mhz refclk -> 0x10bb80
239 	 *
240 	 */
241 	REG_WRITE(MILLISECOND_TIME_BASE_DIV, 0x1186a0);
242 
243 	/* This value is dependent on the hardware pipeline delay so set once per SOC */
244 	REG_WRITE(DISPCLK_FREQ_CHANGE_CNTL, 0x801003c);
245 }
246 
247 void dcn20_disable_vga(
248 	struct dce_hwseq *hws)
249 {
250 	REG_WRITE(D1VGA_CONTROL, 0);
251 	REG_WRITE(D2VGA_CONTROL, 0);
252 	REG_WRITE(D3VGA_CONTROL, 0);
253 	REG_WRITE(D4VGA_CONTROL, 0);
254 	REG_WRITE(D5VGA_CONTROL, 0);
255 	REG_WRITE(D6VGA_CONTROL, 0);
256 }
257 
258 void dcn20_program_triple_buffer(
259 	const struct dc *dc,
260 	struct pipe_ctx *pipe_ctx,
261 	bool enable_triple_buffer)
262 {
263 	if (pipe_ctx->plane_res.hubp && pipe_ctx->plane_res.hubp->funcs) {
264 		pipe_ctx->plane_res.hubp->funcs->hubp_enable_tripleBuffer(
265 			pipe_ctx->plane_res.hubp,
266 			enable_triple_buffer);
267 	}
268 }
269 
270 /* Blank pixel data during initialization */
271 void dcn20_init_blank(
272 		struct dc *dc,
273 		struct timing_generator *tg)
274 {
275 	struct dce_hwseq *hws = dc->hwseq;
276 	enum dc_color_space color_space;
277 	struct tg_color black_color = {0};
278 	struct output_pixel_processor *opp = NULL;
279 	struct output_pixel_processor *bottom_opp = NULL;
280 	uint32_t num_opps, opp_id_src0, opp_id_src1;
281 	uint32_t otg_active_width, otg_active_height;
282 
283 	/* program opp dpg blank color */
284 	color_space = COLOR_SPACE_SRGB;
285 	color_space_to_black_color(dc, color_space, &black_color);
286 
287 	/* get the OTG active size */
288 	tg->funcs->get_otg_active_size(tg,
289 			&otg_active_width,
290 			&otg_active_height);
291 
292 	/* get the OPTC source */
293 	tg->funcs->get_optc_source(tg, &num_opps, &opp_id_src0, &opp_id_src1);
294 	ASSERT(opp_id_src0 < dc->res_pool->res_cap->num_opp);
295 	opp = dc->res_pool->opps[opp_id_src0];
296 
297 	if (num_opps == 2) {
298 		otg_active_width = otg_active_width / 2;
299 		ASSERT(opp_id_src1 < dc->res_pool->res_cap->num_opp);
300 		bottom_opp = dc->res_pool->opps[opp_id_src1];
301 	}
302 
303 	opp->funcs->opp_set_disp_pattern_generator(
304 			opp,
305 			CONTROLLER_DP_TEST_PATTERN_SOLID_COLOR,
306 			CONTROLLER_DP_COLOR_SPACE_UDEFINED,
307 			COLOR_DEPTH_UNDEFINED,
308 			&black_color,
309 			otg_active_width,
310 			otg_active_height,
311 			0);
312 
313 	if (num_opps == 2) {
314 		bottom_opp->funcs->opp_set_disp_pattern_generator(
315 				bottom_opp,
316 				CONTROLLER_DP_TEST_PATTERN_SOLID_COLOR,
317 				CONTROLLER_DP_COLOR_SPACE_UDEFINED,
318 				COLOR_DEPTH_UNDEFINED,
319 				&black_color,
320 				otg_active_width,
321 				otg_active_height,
322 				0);
323 	}
324 
325 	hws->funcs.wait_for_blank_complete(opp);
326 }
327 
328 void dcn20_dsc_pg_control(
329 		struct dce_hwseq *hws,
330 		unsigned int dsc_inst,
331 		bool power_on)
332 {
333 	uint32_t power_gate = power_on ? 0 : 1;
334 	uint32_t pwr_status = power_on ? 0 : 2;
335 	uint32_t org_ip_request_cntl = 0;
336 
337 	if (hws->ctx->dc->debug.disable_dsc_power_gate)
338 		return;
339 
340 	if (REG(DOMAIN16_PG_CONFIG) == 0)
341 		return;
342 
343 	REG_GET(DC_IP_REQUEST_CNTL, IP_REQUEST_EN, &org_ip_request_cntl);
344 	if (org_ip_request_cntl == 0)
345 		REG_SET(DC_IP_REQUEST_CNTL, 0, IP_REQUEST_EN, 1);
346 
347 	switch (dsc_inst) {
348 	case 0: /* DSC0 */
349 		REG_UPDATE(DOMAIN16_PG_CONFIG,
350 				DOMAIN16_POWER_GATE, power_gate);
351 
352 		REG_WAIT(DOMAIN16_PG_STATUS,
353 				DOMAIN16_PGFSM_PWR_STATUS, pwr_status,
354 				1, 1000);
355 		break;
356 	case 1: /* DSC1 */
357 		REG_UPDATE(DOMAIN17_PG_CONFIG,
358 				DOMAIN17_POWER_GATE, power_gate);
359 
360 		REG_WAIT(DOMAIN17_PG_STATUS,
361 				DOMAIN17_PGFSM_PWR_STATUS, pwr_status,
362 				1, 1000);
363 		break;
364 	case 2: /* DSC2 */
365 		REG_UPDATE(DOMAIN18_PG_CONFIG,
366 				DOMAIN18_POWER_GATE, power_gate);
367 
368 		REG_WAIT(DOMAIN18_PG_STATUS,
369 				DOMAIN18_PGFSM_PWR_STATUS, pwr_status,
370 				1, 1000);
371 		break;
372 	case 3: /* DSC3 */
373 		REG_UPDATE(DOMAIN19_PG_CONFIG,
374 				DOMAIN19_POWER_GATE, power_gate);
375 
376 		REG_WAIT(DOMAIN19_PG_STATUS,
377 				DOMAIN19_PGFSM_PWR_STATUS, pwr_status,
378 				1, 1000);
379 		break;
380 	case 4: /* DSC4 */
381 		REG_UPDATE(DOMAIN20_PG_CONFIG,
382 				DOMAIN20_POWER_GATE, power_gate);
383 
384 		REG_WAIT(DOMAIN20_PG_STATUS,
385 				DOMAIN20_PGFSM_PWR_STATUS, pwr_status,
386 				1, 1000);
387 		break;
388 	case 5: /* DSC5 */
389 		REG_UPDATE(DOMAIN21_PG_CONFIG,
390 				DOMAIN21_POWER_GATE, power_gate);
391 
392 		REG_WAIT(DOMAIN21_PG_STATUS,
393 				DOMAIN21_PGFSM_PWR_STATUS, pwr_status,
394 				1, 1000);
395 		break;
396 	default:
397 		BREAK_TO_DEBUGGER();
398 		break;
399 	}
400 
401 	if (org_ip_request_cntl == 0)
402 		REG_SET(DC_IP_REQUEST_CNTL, 0, IP_REQUEST_EN, 0);
403 }
404 
405 void dcn20_dpp_pg_control(
406 		struct dce_hwseq *hws,
407 		unsigned int dpp_inst,
408 		bool power_on)
409 {
410 	uint32_t power_gate = power_on ? 0 : 1;
411 	uint32_t pwr_status = power_on ? 0 : 2;
412 
413 	if (hws->ctx->dc->debug.disable_dpp_power_gate)
414 		return;
415 	if (REG(DOMAIN1_PG_CONFIG) == 0)
416 		return;
417 
418 	switch (dpp_inst) {
419 	case 0: /* DPP0 */
420 		REG_UPDATE(DOMAIN1_PG_CONFIG,
421 				DOMAIN1_POWER_GATE, power_gate);
422 
423 		REG_WAIT(DOMAIN1_PG_STATUS,
424 				DOMAIN1_PGFSM_PWR_STATUS, pwr_status,
425 				1, 1000);
426 		break;
427 	case 1: /* DPP1 */
428 		REG_UPDATE(DOMAIN3_PG_CONFIG,
429 				DOMAIN3_POWER_GATE, power_gate);
430 
431 		REG_WAIT(DOMAIN3_PG_STATUS,
432 				DOMAIN3_PGFSM_PWR_STATUS, pwr_status,
433 				1, 1000);
434 		break;
435 	case 2: /* DPP2 */
436 		REG_UPDATE(DOMAIN5_PG_CONFIG,
437 				DOMAIN5_POWER_GATE, power_gate);
438 
439 		REG_WAIT(DOMAIN5_PG_STATUS,
440 				DOMAIN5_PGFSM_PWR_STATUS, pwr_status,
441 				1, 1000);
442 		break;
443 	case 3: /* DPP3 */
444 		REG_UPDATE(DOMAIN7_PG_CONFIG,
445 				DOMAIN7_POWER_GATE, power_gate);
446 
447 		REG_WAIT(DOMAIN7_PG_STATUS,
448 				DOMAIN7_PGFSM_PWR_STATUS, pwr_status,
449 				1, 1000);
450 		break;
451 	case 4: /* DPP4 */
452 		REG_UPDATE(DOMAIN9_PG_CONFIG,
453 				DOMAIN9_POWER_GATE, power_gate);
454 
455 		REG_WAIT(DOMAIN9_PG_STATUS,
456 				DOMAIN9_PGFSM_PWR_STATUS, pwr_status,
457 				1, 1000);
458 		break;
459 	case 5: /* DPP5 */
460 		/*
461 		 * Do not power gate DPP5, should be left at HW default, power on permanently.
462 		 * PG on Pipe5 is De-featured, attempting to put it to PG state may result in hard
463 		 * reset.
464 		 * REG_UPDATE(DOMAIN11_PG_CONFIG,
465 		 *		DOMAIN11_POWER_GATE, power_gate);
466 		 *
467 		 * REG_WAIT(DOMAIN11_PG_STATUS,
468 		 *		DOMAIN11_PGFSM_PWR_STATUS, pwr_status,
469 		 * 		1, 1000);
470 		 */
471 		break;
472 	default:
473 		BREAK_TO_DEBUGGER();
474 		break;
475 	}
476 }
477 
478 
479 void dcn20_hubp_pg_control(
480 		struct dce_hwseq *hws,
481 		unsigned int hubp_inst,
482 		bool power_on)
483 {
484 	uint32_t power_gate = power_on ? 0 : 1;
485 	uint32_t pwr_status = power_on ? 0 : 2;
486 
487 	if (hws->ctx->dc->debug.disable_hubp_power_gate)
488 		return;
489 	if (REG(DOMAIN0_PG_CONFIG) == 0)
490 		return;
491 
492 	switch (hubp_inst) {
493 	case 0: /* DCHUBP0 */
494 		REG_UPDATE(DOMAIN0_PG_CONFIG,
495 				DOMAIN0_POWER_GATE, power_gate);
496 
497 		REG_WAIT(DOMAIN0_PG_STATUS,
498 				DOMAIN0_PGFSM_PWR_STATUS, pwr_status,
499 				1, 1000);
500 		break;
501 	case 1: /* DCHUBP1 */
502 		REG_UPDATE(DOMAIN2_PG_CONFIG,
503 				DOMAIN2_POWER_GATE, power_gate);
504 
505 		REG_WAIT(DOMAIN2_PG_STATUS,
506 				DOMAIN2_PGFSM_PWR_STATUS, pwr_status,
507 				1, 1000);
508 		break;
509 	case 2: /* DCHUBP2 */
510 		REG_UPDATE(DOMAIN4_PG_CONFIG,
511 				DOMAIN4_POWER_GATE, power_gate);
512 
513 		REG_WAIT(DOMAIN4_PG_STATUS,
514 				DOMAIN4_PGFSM_PWR_STATUS, pwr_status,
515 				1, 1000);
516 		break;
517 	case 3: /* DCHUBP3 */
518 		REG_UPDATE(DOMAIN6_PG_CONFIG,
519 				DOMAIN6_POWER_GATE, power_gate);
520 
521 		REG_WAIT(DOMAIN6_PG_STATUS,
522 				DOMAIN6_PGFSM_PWR_STATUS, pwr_status,
523 				1, 1000);
524 		break;
525 	case 4: /* DCHUBP4 */
526 		REG_UPDATE(DOMAIN8_PG_CONFIG,
527 				DOMAIN8_POWER_GATE, power_gate);
528 
529 		REG_WAIT(DOMAIN8_PG_STATUS,
530 				DOMAIN8_PGFSM_PWR_STATUS, pwr_status,
531 				1, 1000);
532 		break;
533 	case 5: /* DCHUBP5 */
534 		/*
535 		 * Do not power gate DCHUB5, should be left at HW default, power on permanently.
536 		 * PG on Pipe5 is De-featured, attempting to put it to PG state may result in hard
537 		 * reset.
538 		 * REG_UPDATE(DOMAIN10_PG_CONFIG,
539 		 *		DOMAIN10_POWER_GATE, power_gate);
540 		 *
541 		 * REG_WAIT(DOMAIN10_PG_STATUS,
542 		 *		DOMAIN10_PGFSM_PWR_STATUS, pwr_status,
543 		 *		1, 1000);
544 		 */
545 		break;
546 	default:
547 		BREAK_TO_DEBUGGER();
548 		break;
549 	}
550 }
551 
552 
553 /* disable HW used by plane.
554  * note:  cannot disable until disconnect is complete
555  */
556 void dcn20_plane_atomic_disable(struct dc *dc, struct pipe_ctx *pipe_ctx)
557 {
558 	struct dce_hwseq *hws = dc->hwseq;
559 	struct hubp *hubp = pipe_ctx->plane_res.hubp;
560 	struct dpp *dpp = pipe_ctx->plane_res.dpp;
561 
562 	dc->hwss.wait_for_mpcc_disconnect(dc, dc->res_pool, pipe_ctx);
563 
564 	/* In flip immediate with pipe splitting case GSL is used for
565 	 * synchronization so we must disable it when the plane is disabled.
566 	 */
567 	if (pipe_ctx->stream_res.gsl_group != 0)
568 		dcn20_setup_gsl_group_as_lock(dc, pipe_ctx, false);
569 
570 	dc->hwss.set_flip_control_gsl(pipe_ctx, false);
571 
572 	hubp->funcs->hubp_clk_cntl(hubp, false);
573 
574 	dpp->funcs->dpp_dppclk_control(dpp, false, false);
575 
576 	hubp->power_gated = true;
577 
578 	hws->funcs.plane_atomic_power_down(dc,
579 			pipe_ctx->plane_res.dpp,
580 			pipe_ctx->plane_res.hubp);
581 
582 	pipe_ctx->stream = NULL;
583 	memset(&pipe_ctx->stream_res, 0, sizeof(pipe_ctx->stream_res));
584 	memset(&pipe_ctx->plane_res, 0, sizeof(pipe_ctx->plane_res));
585 	pipe_ctx->top_pipe = NULL;
586 	pipe_ctx->bottom_pipe = NULL;
587 	pipe_ctx->plane_state = NULL;
588 }
589 
590 
591 void dcn20_disable_plane(struct dc *dc, struct pipe_ctx *pipe_ctx)
592 {
593 	DC_LOGGER_INIT(dc->ctx->logger);
594 
595 	if (!pipe_ctx->plane_res.hubp || pipe_ctx->plane_res.hubp->power_gated)
596 		return;
597 
598 	dcn20_plane_atomic_disable(dc, pipe_ctx);
599 
600 	DC_LOG_DC("Power down front end %d\n",
601 					pipe_ctx->pipe_idx);
602 }
603 
604 enum dc_status dcn20_enable_stream_timing(
605 		struct pipe_ctx *pipe_ctx,
606 		struct dc_state *context,
607 		struct dc *dc)
608 {
609 	struct dce_hwseq *hws = dc->hwseq;
610 	struct dc_stream_state *stream = pipe_ctx->stream;
611 	struct drr_params params = {0};
612 	unsigned int event_triggers = 0;
613 	struct pipe_ctx *odm_pipe;
614 	int opp_cnt = 1;
615 	int opp_inst[MAX_PIPES] = { pipe_ctx->stream_res.opp->inst };
616 
617 	/* by upper caller loop, pipe0 is parent pipe and be called first.
618 	 * back end is set up by for pipe0. Other children pipe share back end
619 	 * with pipe 0. No program is needed.
620 	 */
621 	if (pipe_ctx->top_pipe != NULL)
622 		return DC_OK;
623 
624 	/* TODO check if timing_changed, disable stream if timing changed */
625 
626 	for (odm_pipe = pipe_ctx->next_odm_pipe; odm_pipe; odm_pipe = odm_pipe->next_odm_pipe) {
627 		opp_inst[opp_cnt] = odm_pipe->stream_res.opp->inst;
628 		opp_cnt++;
629 	}
630 
631 	if (opp_cnt > 1)
632 		pipe_ctx->stream_res.tg->funcs->set_odm_combine(
633 				pipe_ctx->stream_res.tg,
634 				opp_inst, opp_cnt,
635 				&pipe_ctx->stream->timing);
636 
637 	/* HW program guide assume display already disable
638 	 * by unplug sequence. OTG assume stop.
639 	 */
640 	pipe_ctx->stream_res.tg->funcs->enable_optc_clock(pipe_ctx->stream_res.tg, true);
641 
642 	if (false == pipe_ctx->clock_source->funcs->program_pix_clk(
643 			pipe_ctx->clock_source,
644 			&pipe_ctx->stream_res.pix_clk_params,
645 			&pipe_ctx->pll_settings)) {
646 		BREAK_TO_DEBUGGER();
647 		return DC_ERROR_UNEXPECTED;
648 	}
649 
650 	if (dc->hwseq->funcs.PLAT_58856_wa && (!dc_is_dp_signal(stream->signal)))
651 		dc->hwseq->funcs.PLAT_58856_wa(context, pipe_ctx);
652 
653 	pipe_ctx->stream_res.tg->funcs->program_timing(
654 			pipe_ctx->stream_res.tg,
655 			&stream->timing,
656 			pipe_ctx->pipe_dlg_param.vready_offset,
657 			pipe_ctx->pipe_dlg_param.vstartup_start,
658 			pipe_ctx->pipe_dlg_param.vupdate_offset,
659 			pipe_ctx->pipe_dlg_param.vupdate_width,
660 			pipe_ctx->stream->signal,
661 			true);
662 
663 	for (odm_pipe = pipe_ctx->next_odm_pipe; odm_pipe; odm_pipe = odm_pipe->next_odm_pipe)
664 		odm_pipe->stream_res.opp->funcs->opp_pipe_clock_control(
665 				odm_pipe->stream_res.opp,
666 				true);
667 
668 	pipe_ctx->stream_res.opp->funcs->opp_pipe_clock_control(
669 			pipe_ctx->stream_res.opp,
670 			true);
671 
672 	hws->funcs.blank_pixel_data(dc, pipe_ctx, true);
673 
674 	/* VTG is  within DCHUB command block. DCFCLK is always on */
675 	if (false == pipe_ctx->stream_res.tg->funcs->enable_crtc(pipe_ctx->stream_res.tg)) {
676 		BREAK_TO_DEBUGGER();
677 		return DC_ERROR_UNEXPECTED;
678 	}
679 
680 	hws->funcs.wait_for_blank_complete(pipe_ctx->stream_res.opp);
681 
682 	params.vertical_total_min = stream->adjust.v_total_min;
683 	params.vertical_total_max = stream->adjust.v_total_max;
684 	params.vertical_total_mid = stream->adjust.v_total_mid;
685 	params.vertical_total_mid_frame_num = stream->adjust.v_total_mid_frame_num;
686 	if (pipe_ctx->stream_res.tg->funcs->set_drr)
687 		pipe_ctx->stream_res.tg->funcs->set_drr(
688 			pipe_ctx->stream_res.tg, &params);
689 
690 	// DRR should set trigger event to monitor surface update event
691 	if (stream->adjust.v_total_min != 0 && stream->adjust.v_total_max != 0)
692 		event_triggers = 0x80;
693 	/* Event triggers and num frames initialized for DRR, but can be
694 	 * later updated for PSR use. Note DRR trigger events are generated
695 	 * regardless of whether num frames met.
696 	 */
697 	if (pipe_ctx->stream_res.tg->funcs->set_static_screen_control)
698 		pipe_ctx->stream_res.tg->funcs->set_static_screen_control(
699 				pipe_ctx->stream_res.tg, event_triggers, 2);
700 
701 	/* TODO program crtc source select for non-virtual signal*/
702 	/* TODO program FMT */
703 	/* TODO setup link_enc */
704 	/* TODO set stream attributes */
705 	/* TODO program audio */
706 	/* TODO enable stream if timing changed */
707 	/* TODO unblank stream if DP */
708 
709 	return DC_OK;
710 }
711 
712 void dcn20_program_output_csc(struct dc *dc,
713 		struct pipe_ctx *pipe_ctx,
714 		enum dc_color_space colorspace,
715 		uint16_t *matrix,
716 		int opp_id)
717 {
718 	struct mpc *mpc = dc->res_pool->mpc;
719 	enum mpc_output_csc_mode ocsc_mode = MPC_OUTPUT_CSC_COEF_A;
720 	int mpcc_id = pipe_ctx->plane_res.hubp->inst;
721 
722 	if (mpc->funcs->power_on_mpc_mem_pwr)
723 		mpc->funcs->power_on_mpc_mem_pwr(mpc, mpcc_id, true);
724 
725 	if (pipe_ctx->stream->csc_color_matrix.enable_adjustment == true) {
726 		if (mpc->funcs->set_output_csc != NULL)
727 			mpc->funcs->set_output_csc(mpc,
728 					opp_id,
729 					matrix,
730 					ocsc_mode);
731 	} else {
732 		if (mpc->funcs->set_ocsc_default != NULL)
733 			mpc->funcs->set_ocsc_default(mpc,
734 					opp_id,
735 					colorspace,
736 					ocsc_mode);
737 	}
738 }
739 
740 bool dcn20_set_output_transfer_func(struct dc *dc, struct pipe_ctx *pipe_ctx,
741 				const struct dc_stream_state *stream)
742 {
743 	int mpcc_id = pipe_ctx->plane_res.hubp->inst;
744 	struct mpc *mpc = pipe_ctx->stream_res.opp->ctx->dc->res_pool->mpc;
745 	struct pwl_params *params = NULL;
746 	/*
747 	 * program OGAM only for the top pipe
748 	 * if there is a pipe split then fix diagnostic is required:
749 	 * how to pass OGAM parameter for stream.
750 	 * if programming for all pipes is required then remove condition
751 	 * pipe_ctx->top_pipe == NULL ,but then fix the diagnostic.
752 	 */
753 	if (mpc->funcs->power_on_mpc_mem_pwr)
754 		mpc->funcs->power_on_mpc_mem_pwr(mpc, mpcc_id, true);
755 	if (pipe_ctx->top_pipe == NULL
756 			&& mpc->funcs->set_output_gamma && stream->out_transfer_func) {
757 		if (stream->out_transfer_func->type == TF_TYPE_HWPWL)
758 			params = &stream->out_transfer_func->pwl;
759 		else if (pipe_ctx->stream->out_transfer_func->type ==
760 			TF_TYPE_DISTRIBUTED_POINTS &&
761 			cm_helper_translate_curve_to_hw_format(
762 			stream->out_transfer_func,
763 			&mpc->blender_params, false))
764 			params = &mpc->blender_params;
765 		/*
766 		 * there is no ROM
767 		 */
768 		if (stream->out_transfer_func->type == TF_TYPE_PREDEFINED)
769 			BREAK_TO_DEBUGGER();
770 	}
771 	/*
772 	 * if above if is not executed then 'params' equal to 0 and set in bypass
773 	 */
774 	mpc->funcs->set_output_gamma(mpc, mpcc_id, params);
775 
776 	return true;
777 }
778 
779 bool dcn20_set_blend_lut(
780 	struct pipe_ctx *pipe_ctx, const struct dc_plane_state *plane_state)
781 {
782 	struct dpp *dpp_base = pipe_ctx->plane_res.dpp;
783 	bool result = true;
784 	struct pwl_params *blend_lut = NULL;
785 
786 	if (plane_state->blend_tf) {
787 		if (plane_state->blend_tf->type == TF_TYPE_HWPWL)
788 			blend_lut = &plane_state->blend_tf->pwl;
789 		else if (plane_state->blend_tf->type == TF_TYPE_DISTRIBUTED_POINTS) {
790 			cm_helper_translate_curve_to_hw_format(
791 					plane_state->blend_tf,
792 					&dpp_base->regamma_params, false);
793 			blend_lut = &dpp_base->regamma_params;
794 		}
795 	}
796 	result = dpp_base->funcs->dpp_program_blnd_lut(dpp_base, blend_lut);
797 
798 	return result;
799 }
800 
801 bool dcn20_set_shaper_3dlut(
802 	struct pipe_ctx *pipe_ctx, const struct dc_plane_state *plane_state)
803 {
804 	struct dpp *dpp_base = pipe_ctx->plane_res.dpp;
805 	bool result = true;
806 	struct pwl_params *shaper_lut = NULL;
807 
808 	if (plane_state->in_shaper_func) {
809 		if (plane_state->in_shaper_func->type == TF_TYPE_HWPWL)
810 			shaper_lut = &plane_state->in_shaper_func->pwl;
811 		else if (plane_state->in_shaper_func->type == TF_TYPE_DISTRIBUTED_POINTS) {
812 			cm_helper_translate_curve_to_hw_format(
813 					plane_state->in_shaper_func,
814 					&dpp_base->shaper_params, true);
815 			shaper_lut = &dpp_base->shaper_params;
816 		}
817 	}
818 
819 	result = dpp_base->funcs->dpp_program_shaper_lut(dpp_base, shaper_lut);
820 	if (plane_state->lut3d_func &&
821 		plane_state->lut3d_func->state.bits.initialized == 1)
822 		result = dpp_base->funcs->dpp_program_3dlut(dpp_base,
823 								&plane_state->lut3d_func->lut_3d);
824 	else
825 		result = dpp_base->funcs->dpp_program_3dlut(dpp_base, NULL);
826 
827 	return result;
828 }
829 
830 bool dcn20_set_input_transfer_func(struct dc *dc,
831 				struct pipe_ctx *pipe_ctx,
832 				const struct dc_plane_state *plane_state)
833 {
834 	struct dce_hwseq *hws = dc->hwseq;
835 	struct dpp *dpp_base = pipe_ctx->plane_res.dpp;
836 	const struct dc_transfer_func *tf = NULL;
837 	bool result = true;
838 	bool use_degamma_ram = false;
839 
840 	if (dpp_base == NULL || plane_state == NULL)
841 		return false;
842 
843 	hws->funcs.set_shaper_3dlut(pipe_ctx, plane_state);
844 	hws->funcs.set_blend_lut(pipe_ctx, plane_state);
845 
846 	if (plane_state->in_transfer_func)
847 		tf = plane_state->in_transfer_func;
848 
849 
850 	if (tf == NULL) {
851 		dpp_base->funcs->dpp_set_degamma(dpp_base,
852 				IPP_DEGAMMA_MODE_BYPASS);
853 		return true;
854 	}
855 
856 	if (tf->type == TF_TYPE_HWPWL || tf->type == TF_TYPE_DISTRIBUTED_POINTS)
857 		use_degamma_ram = true;
858 
859 	if (use_degamma_ram == true) {
860 		if (tf->type == TF_TYPE_HWPWL)
861 			dpp_base->funcs->dpp_program_degamma_pwl(dpp_base,
862 					&tf->pwl);
863 		else if (tf->type == TF_TYPE_DISTRIBUTED_POINTS) {
864 			cm_helper_translate_curve_to_degamma_hw_format(tf,
865 					&dpp_base->degamma_params);
866 			dpp_base->funcs->dpp_program_degamma_pwl(dpp_base,
867 				&dpp_base->degamma_params);
868 		}
869 		return true;
870 	}
871 	/* handle here the optimized cases when de-gamma ROM could be used.
872 	 *
873 	 */
874 	if (tf->type == TF_TYPE_PREDEFINED) {
875 		switch (tf->tf) {
876 		case TRANSFER_FUNCTION_SRGB:
877 			dpp_base->funcs->dpp_set_degamma(dpp_base,
878 					IPP_DEGAMMA_MODE_HW_sRGB);
879 			break;
880 		case TRANSFER_FUNCTION_BT709:
881 			dpp_base->funcs->dpp_set_degamma(dpp_base,
882 					IPP_DEGAMMA_MODE_HW_xvYCC);
883 			break;
884 		case TRANSFER_FUNCTION_LINEAR:
885 			dpp_base->funcs->dpp_set_degamma(dpp_base,
886 					IPP_DEGAMMA_MODE_BYPASS);
887 			break;
888 		case TRANSFER_FUNCTION_PQ:
889 			dpp_base->funcs->dpp_set_degamma(dpp_base, IPP_DEGAMMA_MODE_USER_PWL);
890 			cm_helper_translate_curve_to_degamma_hw_format(tf, &dpp_base->degamma_params);
891 			dpp_base->funcs->dpp_program_degamma_pwl(dpp_base, &dpp_base->degamma_params);
892 			result = true;
893 			break;
894 		default:
895 			result = false;
896 			break;
897 		}
898 	} else if (tf->type == TF_TYPE_BYPASS)
899 		dpp_base->funcs->dpp_set_degamma(dpp_base,
900 				IPP_DEGAMMA_MODE_BYPASS);
901 	else {
902 		/*
903 		 * if we are here, we did not handle correctly.
904 		 * fix is required for this use case
905 		 */
906 		BREAK_TO_DEBUGGER();
907 		dpp_base->funcs->dpp_set_degamma(dpp_base,
908 				IPP_DEGAMMA_MODE_BYPASS);
909 	}
910 
911 	return result;
912 }
913 
914 void dcn20_update_odm(struct dc *dc, struct dc_state *context, struct pipe_ctx *pipe_ctx)
915 {
916 	struct pipe_ctx *odm_pipe;
917 	int opp_cnt = 1;
918 	int opp_inst[MAX_PIPES] = { pipe_ctx->stream_res.opp->inst };
919 
920 	for (odm_pipe = pipe_ctx->next_odm_pipe; odm_pipe; odm_pipe = odm_pipe->next_odm_pipe) {
921 		opp_inst[opp_cnt] = odm_pipe->stream_res.opp->inst;
922 		opp_cnt++;
923 	}
924 
925 	if (opp_cnt > 1)
926 		pipe_ctx->stream_res.tg->funcs->set_odm_combine(
927 				pipe_ctx->stream_res.tg,
928 				opp_inst, opp_cnt,
929 				&pipe_ctx->stream->timing);
930 	else
931 		pipe_ctx->stream_res.tg->funcs->set_odm_bypass(
932 				pipe_ctx->stream_res.tg, &pipe_ctx->stream->timing);
933 }
934 
935 void dcn20_blank_pixel_data(
936 		struct dc *dc,
937 		struct pipe_ctx *pipe_ctx,
938 		bool blank)
939 {
940 	struct tg_color black_color = {0};
941 	struct stream_resource *stream_res = &pipe_ctx->stream_res;
942 	struct dc_stream_state *stream = pipe_ctx->stream;
943 	enum dc_color_space color_space = stream->output_color_space;
944 	enum controller_dp_test_pattern test_pattern = CONTROLLER_DP_TEST_PATTERN_SOLID_COLOR;
945 	enum controller_dp_color_space test_pattern_color_space = CONTROLLER_DP_COLOR_SPACE_UDEFINED;
946 	struct pipe_ctx *odm_pipe;
947 	int odm_cnt = 1;
948 
949 	int width = stream->timing.h_addressable + stream->timing.h_border_left + stream->timing.h_border_right;
950 	int height = stream->timing.v_addressable + stream->timing.v_border_bottom + stream->timing.v_border_top;
951 
952 	if (stream->link->test_pattern_enabled)
953 		return;
954 
955 	/* get opp dpg blank color */
956 	color_space_to_black_color(dc, color_space, &black_color);
957 
958 	for (odm_pipe = pipe_ctx->next_odm_pipe; odm_pipe; odm_pipe = odm_pipe->next_odm_pipe)
959 		odm_cnt++;
960 
961 	width = width / odm_cnt;
962 
963 	if (blank) {
964 		if (stream_res->abm)
965 			stream_res->abm->funcs->set_abm_immediate_disable(stream_res->abm);
966 
967 		if (dc->debug.visual_confirm != VISUAL_CONFIRM_DISABLE) {
968 			test_pattern = CONTROLLER_DP_TEST_PATTERN_COLORSQUARES;
969 			test_pattern_color_space = CONTROLLER_DP_COLOR_SPACE_RGB;
970 		}
971 	} else {
972 		test_pattern = CONTROLLER_DP_TEST_PATTERN_VIDEOMODE;
973 	}
974 
975 	stream_res->opp->funcs->opp_set_disp_pattern_generator(
976 			stream_res->opp,
977 			test_pattern,
978 			test_pattern_color_space,
979 			stream->timing.display_color_depth,
980 			&black_color,
981 			width,
982 			height,
983 			0);
984 
985 	for (odm_pipe = pipe_ctx->next_odm_pipe; odm_pipe; odm_pipe = odm_pipe->next_odm_pipe) {
986 		odm_pipe->stream_res.opp->funcs->opp_set_disp_pattern_generator(
987 				odm_pipe->stream_res.opp,
988 				dc->debug.visual_confirm != VISUAL_CONFIRM_DISABLE && blank ?
989 						CONTROLLER_DP_TEST_PATTERN_COLORRAMP : test_pattern,
990 				test_pattern_color_space,
991 				stream->timing.display_color_depth,
992 				&black_color,
993 				width,
994 				height,
995 				0);
996 	}
997 
998 	if (!blank)
999 		if (stream_res->abm) {
1000 			stream_res->abm->funcs->set_pipe(stream_res->abm, stream_res->tg->inst + 1);
1001 			stream_res->abm->funcs->set_abm_level(stream_res->abm, stream->abm_level);
1002 		}
1003 }
1004 
1005 
1006 static void dcn20_power_on_plane(
1007 	struct dce_hwseq *hws,
1008 	struct pipe_ctx *pipe_ctx)
1009 {
1010 	DC_LOGGER_INIT(hws->ctx->logger);
1011 	if (REG(DC_IP_REQUEST_CNTL)) {
1012 		REG_SET(DC_IP_REQUEST_CNTL, 0,
1013 				IP_REQUEST_EN, 1);
1014 		dcn20_dpp_pg_control(hws, pipe_ctx->plane_res.dpp->inst, true);
1015 		dcn20_hubp_pg_control(hws, pipe_ctx->plane_res.hubp->inst, true);
1016 		REG_SET(DC_IP_REQUEST_CNTL, 0,
1017 				IP_REQUEST_EN, 0);
1018 		DC_LOG_DEBUG(
1019 				"Un-gated front end for pipe %d\n", pipe_ctx->plane_res.hubp->inst);
1020 	}
1021 }
1022 
1023 void dcn20_enable_plane(
1024 	struct dc *dc,
1025 	struct pipe_ctx *pipe_ctx,
1026 	struct dc_state *context)
1027 {
1028 	//if (dc->debug.sanity_checks) {
1029 	//	dcn10_verify_allow_pstate_change_high(dc);
1030 	//}
1031 	dcn20_power_on_plane(dc->hwseq, pipe_ctx);
1032 
1033 	/* enable DCFCLK current DCHUB */
1034 	pipe_ctx->plane_res.hubp->funcs->hubp_clk_cntl(pipe_ctx->plane_res.hubp, true);
1035 
1036 	/* initialize HUBP on power up */
1037 	pipe_ctx->plane_res.hubp->funcs->hubp_init(pipe_ctx->plane_res.hubp);
1038 
1039 	/* make sure OPP_PIPE_CLOCK_EN = 1 */
1040 	pipe_ctx->stream_res.opp->funcs->opp_pipe_clock_control(
1041 			pipe_ctx->stream_res.opp,
1042 			true);
1043 
1044 /* TODO: enable/disable in dm as per update type.
1045 	if (plane_state) {
1046 		DC_LOG_DC(dc->ctx->logger,
1047 				"Pipe:%d 0x%x: addr hi:0x%x, "
1048 				"addr low:0x%x, "
1049 				"src: %d, %d, %d,"
1050 				" %d; dst: %d, %d, %d, %d;\n",
1051 				pipe_ctx->pipe_idx,
1052 				plane_state,
1053 				plane_state->address.grph.addr.high_part,
1054 				plane_state->address.grph.addr.low_part,
1055 				plane_state->src_rect.x,
1056 				plane_state->src_rect.y,
1057 				plane_state->src_rect.width,
1058 				plane_state->src_rect.height,
1059 				plane_state->dst_rect.x,
1060 				plane_state->dst_rect.y,
1061 				plane_state->dst_rect.width,
1062 				plane_state->dst_rect.height);
1063 
1064 		DC_LOG_DC(dc->ctx->logger,
1065 				"Pipe %d: width, height, x, y         format:%d\n"
1066 				"viewport:%d, %d, %d, %d\n"
1067 				"recout:  %d, %d, %d, %d\n",
1068 				pipe_ctx->pipe_idx,
1069 				plane_state->format,
1070 				pipe_ctx->plane_res.scl_data.viewport.width,
1071 				pipe_ctx->plane_res.scl_data.viewport.height,
1072 				pipe_ctx->plane_res.scl_data.viewport.x,
1073 				pipe_ctx->plane_res.scl_data.viewport.y,
1074 				pipe_ctx->plane_res.scl_data.recout.width,
1075 				pipe_ctx->plane_res.scl_data.recout.height,
1076 				pipe_ctx->plane_res.scl_data.recout.x,
1077 				pipe_ctx->plane_res.scl_data.recout.y);
1078 		print_rq_dlg_ttu(dc, pipe_ctx);
1079 	}
1080 */
1081 	if (dc->vm_pa_config.valid) {
1082 		struct vm_system_aperture_param apt;
1083 
1084 		apt.sys_default.quad_part = 0;
1085 
1086 		apt.sys_low.quad_part = dc->vm_pa_config.system_aperture.start_addr;
1087 		apt.sys_high.quad_part = dc->vm_pa_config.system_aperture.end_addr;
1088 
1089 		// Program system aperture settings
1090 		pipe_ctx->plane_res.hubp->funcs->hubp_set_vm_system_aperture_settings(pipe_ctx->plane_res.hubp, &apt);
1091 	}
1092 
1093 //	if (dc->debug.sanity_checks) {
1094 //		dcn10_verify_allow_pstate_change_high(dc);
1095 //	}
1096 }
1097 
1098 void dcn20_pipe_control_lock(
1099 	struct dc *dc,
1100 	struct pipe_ctx *pipe,
1101 	bool lock)
1102 {
1103 	bool flip_immediate = false;
1104 
1105 	/* use TG master update lock to lock everything on the TG
1106 	 * therefore only top pipe need to lock
1107 	 */
1108 	if (!pipe || pipe->top_pipe)
1109 		return;
1110 
1111 	if (pipe->plane_state != NULL)
1112 		flip_immediate = pipe->plane_state->flip_immediate;
1113 
1114 	if (flip_immediate && lock) {
1115 		const int TIMEOUT_FOR_FLIP_PENDING = 100000;
1116 		int i;
1117 
1118 		for (i = 0; i < TIMEOUT_FOR_FLIP_PENDING; ++i) {
1119 			if (!pipe->plane_res.hubp->funcs->hubp_is_flip_pending(pipe->plane_res.hubp))
1120 				break;
1121 			udelay(1);
1122 		}
1123 
1124 		if (pipe->bottom_pipe != NULL) {
1125 			for (i = 0; i < TIMEOUT_FOR_FLIP_PENDING; ++i) {
1126 				if (!pipe->bottom_pipe->plane_res.hubp->funcs->hubp_is_flip_pending(pipe->bottom_pipe->plane_res.hubp))
1127 					break;
1128 				udelay(1);
1129 			}
1130 		}
1131 	}
1132 
1133 	/* In flip immediate and pipe splitting case, we need to use GSL
1134 	 * for synchronization. Only do setup on locking and on flip type change.
1135 	 */
1136 	if (lock && pipe->bottom_pipe != NULL)
1137 		if ((flip_immediate && pipe->stream_res.gsl_group == 0) ||
1138 		    (!flip_immediate && pipe->stream_res.gsl_group > 0))
1139 			dcn20_setup_gsl_group_as_lock(dc, pipe, flip_immediate);
1140 
1141 	if (pipe->plane_state != NULL && pipe->plane_state->triplebuffer_flips) {
1142 		if (lock)
1143 			pipe->stream_res.tg->funcs->triplebuffer_lock(pipe->stream_res.tg);
1144 		else
1145 			pipe->stream_res.tg->funcs->triplebuffer_unlock(pipe->stream_res.tg);
1146 	} else {
1147 		if (lock)
1148 			pipe->stream_res.tg->funcs->lock(pipe->stream_res.tg);
1149 		else
1150 			pipe->stream_res.tg->funcs->unlock(pipe->stream_res.tg);
1151 	}
1152 }
1153 
1154 static void dcn20_detect_pipe_changes(struct pipe_ctx *old_pipe, struct pipe_ctx *new_pipe)
1155 {
1156 	new_pipe->update_flags.raw = 0;
1157 
1158 	/* Exit on unchanged, unused pipe */
1159 	if (!old_pipe->plane_state && !new_pipe->plane_state)
1160 		return;
1161 	/* Detect pipe enable/disable */
1162 	if (!old_pipe->plane_state && new_pipe->plane_state) {
1163 		new_pipe->update_flags.bits.enable = 1;
1164 		new_pipe->update_flags.bits.mpcc = 1;
1165 		new_pipe->update_flags.bits.dppclk = 1;
1166 		new_pipe->update_flags.bits.hubp_interdependent = 1;
1167 		new_pipe->update_flags.bits.hubp_rq_dlg_ttu = 1;
1168 		new_pipe->update_flags.bits.gamut_remap = 1;
1169 		new_pipe->update_flags.bits.scaler = 1;
1170 		new_pipe->update_flags.bits.viewport = 1;
1171 		if (!new_pipe->top_pipe && !new_pipe->prev_odm_pipe) {
1172 			new_pipe->update_flags.bits.odm = 1;
1173 			new_pipe->update_flags.bits.global_sync = 1;
1174 		}
1175 		return;
1176 	}
1177 	if (old_pipe->plane_state && !new_pipe->plane_state) {
1178 		new_pipe->update_flags.bits.disable = 1;
1179 		return;
1180 	}
1181 
1182 	/* Detect top pipe only changes */
1183 	if (!new_pipe->top_pipe && !new_pipe->prev_odm_pipe) {
1184 		/* Detect odm changes */
1185 		if ((old_pipe->next_odm_pipe && new_pipe->next_odm_pipe
1186 			&& old_pipe->next_odm_pipe->pipe_idx != new_pipe->next_odm_pipe->pipe_idx)
1187 				|| (!old_pipe->next_odm_pipe && new_pipe->next_odm_pipe)
1188 				|| (old_pipe->next_odm_pipe && !new_pipe->next_odm_pipe)
1189 				|| old_pipe->stream_res.opp != new_pipe->stream_res.opp)
1190 			new_pipe->update_flags.bits.odm = 1;
1191 
1192 		/* Detect global sync changes */
1193 		if (old_pipe->pipe_dlg_param.vready_offset != new_pipe->pipe_dlg_param.vready_offset
1194 				|| old_pipe->pipe_dlg_param.vstartup_start != new_pipe->pipe_dlg_param.vstartup_start
1195 				|| old_pipe->pipe_dlg_param.vupdate_offset != new_pipe->pipe_dlg_param.vupdate_offset
1196 				|| old_pipe->pipe_dlg_param.vupdate_width != new_pipe->pipe_dlg_param.vupdate_width)
1197 			new_pipe->update_flags.bits.global_sync = 1;
1198 	}
1199 
1200 	/*
1201 	 * Detect opp / tg change, only set on change, not on enable
1202 	 * Assume mpcc inst = pipe index, if not this code needs to be updated
1203 	 * since mpcc is what is affected by these. In fact all of our sequence
1204 	 * makes this assumption at the moment with how hubp reset is matched to
1205 	 * same index mpcc reset.
1206 	 */
1207 	if (old_pipe->stream_res.opp != new_pipe->stream_res.opp)
1208 		new_pipe->update_flags.bits.opp_changed = 1;
1209 	if (old_pipe->stream_res.tg != new_pipe->stream_res.tg)
1210 		new_pipe->update_flags.bits.tg_changed = 1;
1211 
1212 	/* Detect mpcc blending changes, only dpp inst and bot matter here */
1213 	if (old_pipe->plane_res.dpp != new_pipe->plane_res.dpp
1214 			|| old_pipe->stream_res.opp != new_pipe->stream_res.opp
1215 			|| (!old_pipe->bottom_pipe && new_pipe->bottom_pipe)
1216 			|| (old_pipe->bottom_pipe && !new_pipe->bottom_pipe)
1217 			|| (old_pipe->bottom_pipe && new_pipe->bottom_pipe
1218 				&& old_pipe->bottom_pipe->plane_res.mpcc_inst
1219 					!= new_pipe->bottom_pipe->plane_res.mpcc_inst))
1220 		new_pipe->update_flags.bits.mpcc = 1;
1221 
1222 	/* Detect dppclk change */
1223 	if (old_pipe->plane_res.bw.dppclk_khz != new_pipe->plane_res.bw.dppclk_khz)
1224 		new_pipe->update_flags.bits.dppclk = 1;
1225 
1226 	/* Check for scl update */
1227 	if (memcmp(&old_pipe->plane_res.scl_data, &new_pipe->plane_res.scl_data, sizeof(struct scaler_data)))
1228 			new_pipe->update_flags.bits.scaler = 1;
1229 	/* Check for vp update */
1230 	if (memcmp(&old_pipe->plane_res.scl_data.viewport, &new_pipe->plane_res.scl_data.viewport, sizeof(struct rect))
1231 			|| memcmp(&old_pipe->plane_res.scl_data.viewport_c,
1232 				&new_pipe->plane_res.scl_data.viewport_c, sizeof(struct rect)))
1233 		new_pipe->update_flags.bits.viewport = 1;
1234 
1235 	/* Detect dlg/ttu/rq updates */
1236 	{
1237 		struct _vcs_dpi_display_dlg_regs_st old_dlg_attr = old_pipe->dlg_regs;
1238 		struct _vcs_dpi_display_ttu_regs_st old_ttu_attr = old_pipe->ttu_regs;
1239 		struct _vcs_dpi_display_dlg_regs_st *new_dlg_attr = &new_pipe->dlg_regs;
1240 		struct _vcs_dpi_display_ttu_regs_st *new_ttu_attr = &new_pipe->ttu_regs;
1241 
1242 		/* Detect pipe interdependent updates */
1243 		if (old_dlg_attr.dst_y_prefetch != new_dlg_attr->dst_y_prefetch ||
1244 				old_dlg_attr.vratio_prefetch != new_dlg_attr->vratio_prefetch ||
1245 				old_dlg_attr.vratio_prefetch_c != new_dlg_attr->vratio_prefetch_c ||
1246 				old_dlg_attr.dst_y_per_vm_vblank != new_dlg_attr->dst_y_per_vm_vblank ||
1247 				old_dlg_attr.dst_y_per_row_vblank != new_dlg_attr->dst_y_per_row_vblank ||
1248 				old_dlg_attr.dst_y_per_vm_flip != new_dlg_attr->dst_y_per_vm_flip ||
1249 				old_dlg_attr.dst_y_per_row_flip != new_dlg_attr->dst_y_per_row_flip ||
1250 				old_dlg_attr.refcyc_per_meta_chunk_vblank_l != new_dlg_attr->refcyc_per_meta_chunk_vblank_l ||
1251 				old_dlg_attr.refcyc_per_meta_chunk_vblank_c != new_dlg_attr->refcyc_per_meta_chunk_vblank_c ||
1252 				old_dlg_attr.refcyc_per_meta_chunk_flip_l != new_dlg_attr->refcyc_per_meta_chunk_flip_l ||
1253 				old_dlg_attr.refcyc_per_line_delivery_pre_l != new_dlg_attr->refcyc_per_line_delivery_pre_l ||
1254 				old_dlg_attr.refcyc_per_line_delivery_pre_c != new_dlg_attr->refcyc_per_line_delivery_pre_c ||
1255 				old_ttu_attr.refcyc_per_req_delivery_pre_l != new_ttu_attr->refcyc_per_req_delivery_pre_l ||
1256 				old_ttu_attr.refcyc_per_req_delivery_pre_c != new_ttu_attr->refcyc_per_req_delivery_pre_c ||
1257 				old_ttu_attr.refcyc_per_req_delivery_pre_cur0 != new_ttu_attr->refcyc_per_req_delivery_pre_cur0 ||
1258 				old_ttu_attr.refcyc_per_req_delivery_pre_cur1 != new_ttu_attr->refcyc_per_req_delivery_pre_cur1 ||
1259 				old_ttu_attr.min_ttu_vblank != new_ttu_attr->min_ttu_vblank ||
1260 				old_ttu_attr.qos_level_flip != new_ttu_attr->qos_level_flip) {
1261 			old_dlg_attr.dst_y_prefetch = new_dlg_attr->dst_y_prefetch;
1262 			old_dlg_attr.vratio_prefetch = new_dlg_attr->vratio_prefetch;
1263 			old_dlg_attr.vratio_prefetch_c = new_dlg_attr->vratio_prefetch_c;
1264 			old_dlg_attr.dst_y_per_vm_vblank = new_dlg_attr->dst_y_per_vm_vblank;
1265 			old_dlg_attr.dst_y_per_row_vblank = new_dlg_attr->dst_y_per_row_vblank;
1266 			old_dlg_attr.dst_y_per_vm_flip = new_dlg_attr->dst_y_per_vm_flip;
1267 			old_dlg_attr.dst_y_per_row_flip = new_dlg_attr->dst_y_per_row_flip;
1268 			old_dlg_attr.refcyc_per_meta_chunk_vblank_l = new_dlg_attr->refcyc_per_meta_chunk_vblank_l;
1269 			old_dlg_attr.refcyc_per_meta_chunk_vblank_c = new_dlg_attr->refcyc_per_meta_chunk_vblank_c;
1270 			old_dlg_attr.refcyc_per_meta_chunk_flip_l = new_dlg_attr->refcyc_per_meta_chunk_flip_l;
1271 			old_dlg_attr.refcyc_per_line_delivery_pre_l = new_dlg_attr->refcyc_per_line_delivery_pre_l;
1272 			old_dlg_attr.refcyc_per_line_delivery_pre_c = new_dlg_attr->refcyc_per_line_delivery_pre_c;
1273 			old_ttu_attr.refcyc_per_req_delivery_pre_l = new_ttu_attr->refcyc_per_req_delivery_pre_l;
1274 			old_ttu_attr.refcyc_per_req_delivery_pre_c = new_ttu_attr->refcyc_per_req_delivery_pre_c;
1275 			old_ttu_attr.refcyc_per_req_delivery_pre_cur0 = new_ttu_attr->refcyc_per_req_delivery_pre_cur0;
1276 			old_ttu_attr.refcyc_per_req_delivery_pre_cur1 = new_ttu_attr->refcyc_per_req_delivery_pre_cur1;
1277 			old_ttu_attr.min_ttu_vblank = new_ttu_attr->min_ttu_vblank;
1278 			old_ttu_attr.qos_level_flip = new_ttu_attr->qos_level_flip;
1279 			new_pipe->update_flags.bits.hubp_interdependent = 1;
1280 		}
1281 		/* Detect any other updates to ttu/rq/dlg */
1282 		if (memcmp(&old_dlg_attr, &new_pipe->dlg_regs, sizeof(old_dlg_attr)) ||
1283 				memcmp(&old_ttu_attr, &new_pipe->ttu_regs, sizeof(old_ttu_attr)) ||
1284 				memcmp(&old_pipe->rq_regs, &new_pipe->rq_regs, sizeof(old_pipe->rq_regs)))
1285 			new_pipe->update_flags.bits.hubp_rq_dlg_ttu = 1;
1286 	}
1287 }
1288 
1289 static void dcn20_update_dchubp_dpp(
1290 	struct dc *dc,
1291 	struct pipe_ctx *pipe_ctx,
1292 	struct dc_state *context)
1293 {
1294 	struct dce_hwseq *hws = dc->hwseq;
1295 	struct hubp *hubp = pipe_ctx->plane_res.hubp;
1296 	struct dpp *dpp = pipe_ctx->plane_res.dpp;
1297 	struct dc_plane_state *plane_state = pipe_ctx->plane_state;
1298 	bool viewport_changed = false;
1299 
1300 	if (pipe_ctx->update_flags.bits.dppclk)
1301 		dpp->funcs->dpp_dppclk_control(dpp, false, true);
1302 
1303 	/* TODO: Need input parameter to tell current DCHUB pipe tie to which OTG
1304 	 * VTG is within DCHUBBUB which is commond block share by each pipe HUBP.
1305 	 * VTG is 1:1 mapping with OTG. Each pipe HUBP will select which VTG
1306 	 */
1307 	if (pipe_ctx->update_flags.bits.hubp_rq_dlg_ttu) {
1308 		hubp->funcs->hubp_vtg_sel(hubp, pipe_ctx->stream_res.tg->inst);
1309 
1310 		hubp->funcs->hubp_setup(
1311 			hubp,
1312 			&pipe_ctx->dlg_regs,
1313 			&pipe_ctx->ttu_regs,
1314 			&pipe_ctx->rq_regs,
1315 			&pipe_ctx->pipe_dlg_param);
1316 	}
1317 	if (pipe_ctx->update_flags.bits.hubp_interdependent)
1318 		hubp->funcs->hubp_setup_interdependent(
1319 			hubp,
1320 			&pipe_ctx->dlg_regs,
1321 			&pipe_ctx->ttu_regs);
1322 
1323 	if (pipe_ctx->update_flags.bits.enable ||
1324 			plane_state->update_flags.bits.bpp_change ||
1325 			plane_state->update_flags.bits.input_csc_change ||
1326 			plane_state->update_flags.bits.color_space_change ||
1327 			plane_state->update_flags.bits.coeff_reduction_change) {
1328 		struct dc_bias_and_scale bns_params = {0};
1329 
1330 		// program the input csc
1331 		dpp->funcs->dpp_setup(dpp,
1332 				plane_state->format,
1333 				EXPANSION_MODE_ZERO,
1334 				plane_state->input_csc_color_matrix,
1335 				plane_state->color_space,
1336 				NULL);
1337 
1338 		if (dpp->funcs->dpp_program_bias_and_scale) {
1339 			//TODO :for CNVC set scale and bias registers if necessary
1340 			build_prescale_params(&bns_params, plane_state);
1341 			dpp->funcs->dpp_program_bias_and_scale(dpp, &bns_params);
1342 		}
1343 	}
1344 
1345 	if (pipe_ctx->update_flags.bits.mpcc
1346 			|| plane_state->update_flags.bits.global_alpha_change
1347 			|| plane_state->update_flags.bits.per_pixel_alpha_change) {
1348 		// MPCC inst is equal to pipe index in practice
1349 		int mpcc_inst = hubp->inst;
1350 		int opp_inst;
1351 		int opp_count = dc->res_pool->pipe_count;
1352 
1353 		for (opp_inst = 0; opp_inst < opp_count; opp_inst++) {
1354 			if (dc->res_pool->opps[opp_inst]->mpcc_disconnect_pending[mpcc_inst]) {
1355 				dc->res_pool->mpc->funcs->wait_for_idle(dc->res_pool->mpc, mpcc_inst);
1356 				dc->res_pool->opps[opp_inst]->mpcc_disconnect_pending[mpcc_inst] = false;
1357 				break;
1358 			}
1359 		}
1360 		hws->funcs.update_mpcc(dc, pipe_ctx);
1361 	}
1362 
1363 	if (pipe_ctx->update_flags.bits.scaler ||
1364 			plane_state->update_flags.bits.scaling_change ||
1365 			plane_state->update_flags.bits.position_change ||
1366 			plane_state->update_flags.bits.per_pixel_alpha_change ||
1367 			pipe_ctx->stream->update_flags.bits.scaling) {
1368 		pipe_ctx->plane_res.scl_data.lb_params.alpha_en = pipe_ctx->plane_state->per_pixel_alpha;
1369 		ASSERT(pipe_ctx->plane_res.scl_data.lb_params.depth == LB_PIXEL_DEPTH_30BPP);
1370 		/* scaler configuration */
1371 		pipe_ctx->plane_res.dpp->funcs->dpp_set_scaler(
1372 				pipe_ctx->plane_res.dpp, &pipe_ctx->plane_res.scl_data);
1373 	}
1374 
1375 	if (pipe_ctx->update_flags.bits.viewport ||
1376 			(context == dc->current_state && plane_state->update_flags.bits.position_change) ||
1377 			(context == dc->current_state && plane_state->update_flags.bits.scaling_change) ||
1378 			(context == dc->current_state && pipe_ctx->stream->update_flags.bits.scaling)) {
1379 
1380 		hubp->funcs->mem_program_viewport(
1381 			hubp,
1382 			&pipe_ctx->plane_res.scl_data.viewport,
1383 			&pipe_ctx->plane_res.scl_data.viewport_c);
1384 		viewport_changed = true;
1385 	}
1386 
1387 	/* Any updates are handled in dc interface, just need to apply existing for plane enable */
1388 	if ((pipe_ctx->update_flags.bits.enable || pipe_ctx->update_flags.bits.opp_changed ||
1389 			pipe_ctx->update_flags.bits.scaler || pipe_ctx->update_flags.bits.viewport)
1390 			&& pipe_ctx->stream->cursor_attributes.address.quad_part != 0) {
1391 		dc->hwss.set_cursor_position(pipe_ctx);
1392 		dc->hwss.set_cursor_attribute(pipe_ctx);
1393 
1394 		if (dc->hwss.set_cursor_sdr_white_level)
1395 			dc->hwss.set_cursor_sdr_white_level(pipe_ctx);
1396 	}
1397 
1398 	/* Any updates are handled in dc interface, just need
1399 	 * to apply existing for plane enable / opp change */
1400 	if (pipe_ctx->update_flags.bits.enable || pipe_ctx->update_flags.bits.opp_changed
1401 			|| pipe_ctx->stream->update_flags.bits.gamut_remap
1402 			|| pipe_ctx->stream->update_flags.bits.out_csc) {
1403 			/* dpp/cm gamut remap*/
1404 			dc->hwss.program_gamut_remap(pipe_ctx);
1405 
1406 		/*call the dcn2 method which uses mpc csc*/
1407 		dc->hwss.program_output_csc(dc,
1408 				pipe_ctx,
1409 				pipe_ctx->stream->output_color_space,
1410 				pipe_ctx->stream->csc_color_matrix.matrix,
1411 				hubp->opp_id);
1412 	}
1413 
1414 	if (pipe_ctx->update_flags.bits.enable ||
1415 			pipe_ctx->update_flags.bits.opp_changed ||
1416 			plane_state->update_flags.bits.pixel_format_change ||
1417 			plane_state->update_flags.bits.horizontal_mirror_change ||
1418 			plane_state->update_flags.bits.rotation_change ||
1419 			plane_state->update_flags.bits.swizzle_change ||
1420 			plane_state->update_flags.bits.dcc_change ||
1421 			plane_state->update_flags.bits.bpp_change ||
1422 			plane_state->update_flags.bits.scaling_change ||
1423 			plane_state->update_flags.bits.plane_size_change) {
1424 		struct plane_size size = plane_state->plane_size;
1425 
1426 		size.surface_size = pipe_ctx->plane_res.scl_data.viewport;
1427 		hubp->funcs->hubp_program_surface_config(
1428 			hubp,
1429 			plane_state->format,
1430 			&plane_state->tiling_info,
1431 			&size,
1432 			plane_state->rotation,
1433 			&plane_state->dcc,
1434 			plane_state->horizontal_mirror,
1435 			0);
1436 		hubp->power_gated = false;
1437 	}
1438 
1439 	if (hubp->funcs->apply_PLAT_54186_wa && viewport_changed)
1440 		hubp->funcs->apply_PLAT_54186_wa(hubp, &plane_state->address);
1441 
1442 	if (pipe_ctx->update_flags.bits.enable || plane_state->update_flags.bits.addr_update)
1443 		hws->funcs.update_plane_addr(dc, pipe_ctx);
1444 
1445 
1446 
1447 	if (pipe_ctx->update_flags.bits.enable)
1448 		hubp->funcs->set_blank(hubp, false);
1449 }
1450 
1451 
1452 static void dcn20_program_pipe(
1453 		struct dc *dc,
1454 		struct pipe_ctx *pipe_ctx,
1455 		struct dc_state *context)
1456 {
1457 	struct dce_hwseq *hws = dc->hwseq;
1458 	/* Only need to unblank on top pipe */
1459 	if ((pipe_ctx->update_flags.bits.enable || pipe_ctx->stream->update_flags.bits.abm_level)
1460 			&& !pipe_ctx->top_pipe && !pipe_ctx->prev_odm_pipe)
1461 		hws->funcs.blank_pixel_data(dc, pipe_ctx, !pipe_ctx->plane_state->visible);
1462 
1463 	if (pipe_ctx->update_flags.bits.global_sync) {
1464 		pipe_ctx->stream_res.tg->funcs->program_global_sync(
1465 				pipe_ctx->stream_res.tg,
1466 				pipe_ctx->pipe_dlg_param.vready_offset,
1467 				pipe_ctx->pipe_dlg_param.vstartup_start,
1468 				pipe_ctx->pipe_dlg_param.vupdate_offset,
1469 				pipe_ctx->pipe_dlg_param.vupdate_width);
1470 
1471 		pipe_ctx->stream_res.tg->funcs->set_vtg_params(
1472 				pipe_ctx->stream_res.tg, &pipe_ctx->stream->timing);
1473 
1474 		if (hws->funcs.setup_vupdate_interrupt)
1475 			hws->funcs.setup_vupdate_interrupt(dc, pipe_ctx);
1476 	}
1477 
1478 	if (pipe_ctx->update_flags.bits.odm)
1479 		hws->funcs.update_odm(dc, context, pipe_ctx);
1480 
1481 	if (pipe_ctx->update_flags.bits.enable)
1482 		dcn20_enable_plane(dc, pipe_ctx, context);
1483 
1484 	if (pipe_ctx->update_flags.raw || pipe_ctx->plane_state->update_flags.raw || pipe_ctx->stream->update_flags.raw)
1485 		dcn20_update_dchubp_dpp(dc, pipe_ctx, context);
1486 
1487 	if (pipe_ctx->update_flags.bits.enable
1488 			|| pipe_ctx->plane_state->update_flags.bits.hdr_mult)
1489 		hws->funcs.set_hdr_multiplier(pipe_ctx);
1490 
1491 	if (pipe_ctx->update_flags.bits.enable ||
1492 			pipe_ctx->plane_state->update_flags.bits.in_transfer_func_change ||
1493 			pipe_ctx->plane_state->update_flags.bits.gamma_change)
1494 		hws->funcs.set_input_transfer_func(dc, pipe_ctx, pipe_ctx->plane_state);
1495 
1496 	/* dcn10_translate_regamma_to_hw_format takes 750us to finish
1497 	 * only do gamma programming for powering on, internal memcmp to avoid
1498 	 * updating on slave planes
1499 	 */
1500 	if (pipe_ctx->update_flags.bits.enable || pipe_ctx->stream->update_flags.bits.out_tf)
1501 		hws->funcs.set_output_transfer_func(dc, pipe_ctx, pipe_ctx->stream);
1502 
1503 	/* If the pipe has been enabled or has a different opp, we
1504 	 * should reprogram the fmt. This deals with cases where
1505 	 * interation between mpc and odm combine on different streams
1506 	 * causes a different pipe to be chosen to odm combine with.
1507 	 */
1508 	if (pipe_ctx->update_flags.bits.enable
1509 	    || pipe_ctx->update_flags.bits.opp_changed) {
1510 
1511 		pipe_ctx->stream_res.opp->funcs->opp_set_dyn_expansion(
1512 			pipe_ctx->stream_res.opp,
1513 			COLOR_SPACE_YCBCR601,
1514 			pipe_ctx->stream->timing.display_color_depth,
1515 			pipe_ctx->stream->signal);
1516 
1517 		pipe_ctx->stream_res.opp->funcs->opp_program_fmt(
1518 			pipe_ctx->stream_res.opp,
1519 			&pipe_ctx->stream->bit_depth_params,
1520 			&pipe_ctx->stream->clamping);
1521 	}
1522 }
1523 
1524 void dcn20_program_front_end_for_ctx(
1525 		struct dc *dc,
1526 		struct dc_state *context)
1527 {
1528 	int i;
1529 	struct dce_hwseq *hws = dc->hwseq;
1530 	DC_LOGGER_INIT(dc->ctx->logger);
1531 
1532 	for (i = 0; i < dc->res_pool->pipe_count; i++) {
1533 		struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i];
1534 
1535 		if (!pipe_ctx->top_pipe && !pipe_ctx->prev_odm_pipe && pipe_ctx->plane_state) {
1536 			ASSERT(!pipe_ctx->plane_state->triplebuffer_flips);
1537 			if (dc->hwss.program_triplebuffer != NULL &&
1538 				!dc->debug.disable_tri_buf) {
1539 				/*turn off triple buffer for full update*/
1540 				dc->hwss.program_triplebuffer(
1541 					dc, pipe_ctx, pipe_ctx->plane_state->triplebuffer_flips);
1542 			}
1543 		}
1544 	}
1545 
1546 	/* Set pipe update flags and lock pipes */
1547 	for (i = 0; i < dc->res_pool->pipe_count; i++)
1548 		dcn20_detect_pipe_changes(&dc->current_state->res_ctx.pipe_ctx[i],
1549 				&context->res_ctx.pipe_ctx[i]);
1550 
1551 	/* OTG blank before disabling all front ends */
1552 	for (i = 0; i < dc->res_pool->pipe_count; i++)
1553 		if (context->res_ctx.pipe_ctx[i].update_flags.bits.disable
1554 				&& !context->res_ctx.pipe_ctx[i].top_pipe
1555 				&& !context->res_ctx.pipe_ctx[i].prev_odm_pipe
1556 				&& context->res_ctx.pipe_ctx[i].stream)
1557 			hws->funcs.blank_pixel_data(dc, &context->res_ctx.pipe_ctx[i], true);
1558 
1559 	/* Disconnect mpcc */
1560 	for (i = 0; i < dc->res_pool->pipe_count; i++)
1561 		if (context->res_ctx.pipe_ctx[i].update_flags.bits.disable
1562 				|| context->res_ctx.pipe_ctx[i].update_flags.bits.opp_changed) {
1563 			hws->funcs.plane_atomic_disconnect(dc, &dc->current_state->res_ctx.pipe_ctx[i]);
1564 			DC_LOG_DC("Reset mpcc for pipe %d\n", dc->current_state->res_ctx.pipe_ctx[i].pipe_idx);
1565 		}
1566 
1567 	/*
1568 	 * Program all updated pipes, order matters for mpcc setup. Start with
1569 	 * top pipe and program all pipes that follow in order
1570 	 */
1571 	for (i = 0; i < dc->res_pool->pipe_count; i++) {
1572 		struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i];
1573 
1574 		if (pipe->plane_state && !pipe->top_pipe) {
1575 			while (pipe) {
1576 				dcn20_program_pipe(dc, pipe, context);
1577 				pipe = pipe->bottom_pipe;
1578 			}
1579 			/* Program secondary blending tree and writeback pipes */
1580 			pipe = &context->res_ctx.pipe_ctx[i];
1581 			if (!pipe->prev_odm_pipe && pipe->stream->num_wb_info > 0
1582 					&& (pipe->update_flags.raw || pipe->plane_state->update_flags.raw || pipe->stream->update_flags.raw)
1583 					&& hws->funcs.program_all_writeback_pipes_in_tree)
1584 				hws->funcs.program_all_writeback_pipes_in_tree(dc, pipe->stream, context);
1585 		}
1586 	}
1587 }
1588 
1589 void dcn20_post_unlock_program_front_end(
1590 		struct dc *dc,
1591 		struct dc_state *context)
1592 {
1593 	int i;
1594 	const unsigned int TIMEOUT_FOR_PIPE_ENABLE_MS = 100;
1595 	struct dce_hwseq *hwseq = dc->hwseq;
1596 
1597 	DC_LOGGER_INIT(dc->ctx->logger);
1598 
1599 	for (i = 0; i < dc->res_pool->pipe_count; i++)
1600 		if (context->res_ctx.pipe_ctx[i].update_flags.bits.disable)
1601 			dc->hwss.disable_plane(dc, &dc->current_state->res_ctx.pipe_ctx[i]);
1602 
1603 	/*
1604 	 * If we are enabling a pipe, we need to wait for pending clear as this is a critical
1605 	 * part of the enable operation otherwise, DM may request an immediate flip which
1606 	 * will cause HW to perform an "immediate enable" (as opposed to "vsync enable") which
1607 	 * is unsupported on DCN.
1608 	 */
1609 	for (i = 0; i < dc->res_pool->pipe_count; i++) {
1610 		struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i];
1611 
1612 		if (pipe->plane_state && !pipe->top_pipe && pipe->update_flags.bits.enable) {
1613 			struct hubp *hubp = pipe->plane_res.hubp;
1614 			int j = 0;
1615 
1616 			for (j = 0; j < TIMEOUT_FOR_PIPE_ENABLE_MS*1000
1617 					&& hubp->funcs->hubp_is_flip_pending(hubp); j++)
1618 				mdelay(1);
1619 		}
1620 	}
1621 
1622 	/* WA to apply WM setting*/
1623 	if (hwseq->wa.DEGVIDCN21)
1624 		dc->res_pool->hubbub->funcs->apply_DEDCN21_147_wa(dc->res_pool->hubbub);
1625 
1626 
1627 	/* WA for stutter underflow during MPO transitions when adding 2nd plane */
1628 	if (hwseq->wa.disallow_self_refresh_during_multi_plane_transition) {
1629 
1630 		if (dc->current_state->stream_status[0].plane_count == 1 &&
1631 				context->stream_status[0].plane_count > 1) {
1632 
1633 			struct timing_generator *tg = dc->res_pool->timing_generators[0];
1634 
1635 			dc->res_pool->hubbub->funcs->allow_self_refresh_control(dc->res_pool->hubbub, false);
1636 
1637 			hwseq->wa_state.disallow_self_refresh_during_multi_plane_transition_applied = true;
1638 			hwseq->wa_state.disallow_self_refresh_during_multi_plane_transition_applied_on_frame = tg->funcs->get_frame_count(tg);
1639 		}
1640 	}
1641 }
1642 
1643 void dcn20_prepare_bandwidth(
1644 		struct dc *dc,
1645 		struct dc_state *context)
1646 {
1647 	struct hubbub *hubbub = dc->res_pool->hubbub;
1648 
1649 	dc->clk_mgr->funcs->update_clocks(
1650 			dc->clk_mgr,
1651 			context,
1652 			false);
1653 
1654 	/* program dchubbub watermarks */
1655 	dc->wm_optimized_required = hubbub->funcs->program_watermarks(hubbub,
1656 					&context->bw_ctx.bw.dcn.watermarks,
1657 					dc->res_pool->ref_clocks.dchub_ref_clock_inKhz / 1000,
1658 					false);
1659 }
1660 
1661 void dcn20_optimize_bandwidth(
1662 		struct dc *dc,
1663 		struct dc_state *context)
1664 {
1665 	struct hubbub *hubbub = dc->res_pool->hubbub;
1666 
1667 	/* program dchubbub watermarks */
1668 	hubbub->funcs->program_watermarks(hubbub,
1669 					&context->bw_ctx.bw.dcn.watermarks,
1670 					dc->res_pool->ref_clocks.dchub_ref_clock_inKhz / 1000,
1671 					true);
1672 
1673 	dc->clk_mgr->funcs->update_clocks(
1674 			dc->clk_mgr,
1675 			context,
1676 			true);
1677 }
1678 
1679 bool dcn20_update_bandwidth(
1680 		struct dc *dc,
1681 		struct dc_state *context)
1682 {
1683 	int i;
1684 	struct dce_hwseq *hws = dc->hwseq;
1685 
1686 	/* recalculate DML parameters */
1687 	if (!dc->res_pool->funcs->validate_bandwidth(dc, context, false))
1688 		return false;
1689 
1690 	/* apply updated bandwidth parameters */
1691 	dc->hwss.prepare_bandwidth(dc, context);
1692 
1693 	/* update hubp configs for all pipes */
1694 	for (i = 0; i < dc->res_pool->pipe_count; i++) {
1695 		struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i];
1696 
1697 		if (pipe_ctx->plane_state == NULL)
1698 			continue;
1699 
1700 		if (pipe_ctx->top_pipe == NULL) {
1701 			bool blank = !is_pipe_tree_visible(pipe_ctx);
1702 
1703 			pipe_ctx->stream_res.tg->funcs->program_global_sync(
1704 					pipe_ctx->stream_res.tg,
1705 					pipe_ctx->pipe_dlg_param.vready_offset,
1706 					pipe_ctx->pipe_dlg_param.vstartup_start,
1707 					pipe_ctx->pipe_dlg_param.vupdate_offset,
1708 					pipe_ctx->pipe_dlg_param.vupdate_width);
1709 
1710 			pipe_ctx->stream_res.tg->funcs->set_vtg_params(
1711 					pipe_ctx->stream_res.tg, &pipe_ctx->stream->timing);
1712 
1713 			if (pipe_ctx->prev_odm_pipe == NULL)
1714 				hws->funcs.blank_pixel_data(dc, pipe_ctx, blank);
1715 
1716 			if (hws->funcs.setup_vupdate_interrupt)
1717 				hws->funcs.setup_vupdate_interrupt(dc, pipe_ctx);
1718 		}
1719 
1720 		pipe_ctx->plane_res.hubp->funcs->hubp_setup(
1721 				pipe_ctx->plane_res.hubp,
1722 					&pipe_ctx->dlg_regs,
1723 					&pipe_ctx->ttu_regs,
1724 					&pipe_ctx->rq_regs,
1725 					&pipe_ctx->pipe_dlg_param);
1726 	}
1727 
1728 	return true;
1729 }
1730 
1731 void dcn20_enable_writeback(
1732 		struct dc *dc,
1733 		struct dc_writeback_info *wb_info,
1734 		struct dc_state *context)
1735 {
1736 	struct dwbc *dwb;
1737 	struct mcif_wb *mcif_wb;
1738 	struct timing_generator *optc;
1739 
1740 	ASSERT(wb_info->dwb_pipe_inst < MAX_DWB_PIPES);
1741 	ASSERT(wb_info->wb_enabled);
1742 	dwb = dc->res_pool->dwbc[wb_info->dwb_pipe_inst];
1743 	mcif_wb = dc->res_pool->mcif_wb[wb_info->dwb_pipe_inst];
1744 
1745 	/* set the OPTC source mux */
1746 	optc = dc->res_pool->timing_generators[dwb->otg_inst];
1747 	optc->funcs->set_dwb_source(optc, wb_info->dwb_pipe_inst);
1748 	/* set MCIF_WB buffer and arbitration configuration */
1749 	mcif_wb->funcs->config_mcif_buf(mcif_wb, &wb_info->mcif_buf_params, wb_info->dwb_params.dest_height);
1750 	mcif_wb->funcs->config_mcif_arb(mcif_wb, &context->bw_ctx.bw.dcn.bw_writeback.mcif_wb_arb[wb_info->dwb_pipe_inst]);
1751 	/* Enable MCIF_WB */
1752 	mcif_wb->funcs->enable_mcif(mcif_wb);
1753 	/* Enable DWB */
1754 	dwb->funcs->enable(dwb, &wb_info->dwb_params);
1755 	/* TODO: add sequence to enable/disable warmup */
1756 }
1757 
1758 void dcn20_disable_writeback(
1759 		struct dc *dc,
1760 		unsigned int dwb_pipe_inst)
1761 {
1762 	struct dwbc *dwb;
1763 	struct mcif_wb *mcif_wb;
1764 
1765 	ASSERT(dwb_pipe_inst < MAX_DWB_PIPES);
1766 	dwb = dc->res_pool->dwbc[dwb_pipe_inst];
1767 	mcif_wb = dc->res_pool->mcif_wb[dwb_pipe_inst];
1768 
1769 	dwb->funcs->disable(dwb);
1770 	mcif_wb->funcs->disable_mcif(mcif_wb);
1771 }
1772 
1773 bool dcn20_wait_for_blank_complete(
1774 		struct output_pixel_processor *opp)
1775 {
1776 	int counter;
1777 
1778 	for (counter = 0; counter < 1000; counter++) {
1779 		if (opp->funcs->dpg_is_blanked(opp))
1780 			break;
1781 
1782 		udelay(100);
1783 	}
1784 
1785 	if (counter == 1000) {
1786 		dm_error("DC: failed to blank crtc!\n");
1787 		return false;
1788 	}
1789 
1790 	return true;
1791 }
1792 
1793 bool dcn20_dmdata_status_done(struct pipe_ctx *pipe_ctx)
1794 {
1795 	struct hubp *hubp = pipe_ctx->plane_res.hubp;
1796 
1797 	if (!hubp)
1798 		return false;
1799 	return hubp->funcs->dmdata_status_done(hubp);
1800 }
1801 
1802 void dcn20_disable_stream_gating(struct dc *dc, struct pipe_ctx *pipe_ctx)
1803 {
1804 	struct dce_hwseq *hws = dc->hwseq;
1805 
1806 	if (pipe_ctx->stream_res.dsc) {
1807 		struct pipe_ctx *odm_pipe = pipe_ctx->next_odm_pipe;
1808 
1809 		dcn20_dsc_pg_control(hws, pipe_ctx->stream_res.dsc->inst, true);
1810 		while (odm_pipe) {
1811 			dcn20_dsc_pg_control(hws, odm_pipe->stream_res.dsc->inst, true);
1812 			odm_pipe = odm_pipe->next_odm_pipe;
1813 		}
1814 	}
1815 }
1816 
1817 void dcn20_enable_stream_gating(struct dc *dc, struct pipe_ctx *pipe_ctx)
1818 {
1819 	struct dce_hwseq *hws = dc->hwseq;
1820 
1821 	if (pipe_ctx->stream_res.dsc) {
1822 		struct pipe_ctx *odm_pipe = pipe_ctx->next_odm_pipe;
1823 
1824 		dcn20_dsc_pg_control(hws, pipe_ctx->stream_res.dsc->inst, false);
1825 		while (odm_pipe) {
1826 			dcn20_dsc_pg_control(hws, odm_pipe->stream_res.dsc->inst, false);
1827 			odm_pipe = odm_pipe->next_odm_pipe;
1828 		}
1829 	}
1830 }
1831 
1832 void dcn20_set_dmdata_attributes(struct pipe_ctx *pipe_ctx)
1833 {
1834 	struct dc_dmdata_attributes attr = { 0 };
1835 	struct hubp *hubp = pipe_ctx->plane_res.hubp;
1836 
1837 	attr.dmdata_mode = DMDATA_HW_MODE;
1838 	attr.dmdata_size =
1839 		dc_is_hdmi_signal(pipe_ctx->stream->signal) ? 32 : 36;
1840 	attr.address.quad_part =
1841 			pipe_ctx->stream->dmdata_address.quad_part;
1842 	attr.dmdata_dl_delta = 0;
1843 	attr.dmdata_qos_mode = 0;
1844 	attr.dmdata_qos_level = 0;
1845 	attr.dmdata_repeat = 1; /* always repeat */
1846 	attr.dmdata_updated = 1;
1847 	attr.dmdata_sw_data = NULL;
1848 
1849 	hubp->funcs->dmdata_set_attributes(hubp, &attr);
1850 }
1851 
1852 void dcn20_init_vm_ctx(
1853 		struct dce_hwseq *hws,
1854 		struct dc *dc,
1855 		struct dc_virtual_addr_space_config *va_config,
1856 		int vmid)
1857 {
1858 	struct dcn_hubbub_virt_addr_config config;
1859 
1860 	if (vmid == 0) {
1861 		ASSERT(0); /* VMID cannot be 0 for vm context */
1862 		return;
1863 	}
1864 
1865 	config.page_table_start_addr = va_config->page_table_start_addr;
1866 	config.page_table_end_addr = va_config->page_table_end_addr;
1867 	config.page_table_block_size = va_config->page_table_block_size_in_bytes;
1868 	config.page_table_depth = va_config->page_table_depth;
1869 	config.page_table_base_addr = va_config->page_table_base_addr;
1870 
1871 	dc->res_pool->hubbub->funcs->init_vm_ctx(dc->res_pool->hubbub, &config, vmid);
1872 }
1873 
1874 int dcn20_init_sys_ctx(struct dce_hwseq *hws, struct dc *dc, struct dc_phy_addr_space_config *pa_config)
1875 {
1876 	struct dcn_hubbub_phys_addr_config config;
1877 
1878 	config.system_aperture.fb_top = pa_config->system_aperture.fb_top;
1879 	config.system_aperture.fb_offset = pa_config->system_aperture.fb_offset;
1880 	config.system_aperture.fb_base = pa_config->system_aperture.fb_base;
1881 	config.system_aperture.agp_top = pa_config->system_aperture.agp_top;
1882 	config.system_aperture.agp_bot = pa_config->system_aperture.agp_bot;
1883 	config.system_aperture.agp_base = pa_config->system_aperture.agp_base;
1884 	config.gart_config.page_table_start_addr = pa_config->gart_config.page_table_start_addr;
1885 	config.gart_config.page_table_end_addr = pa_config->gart_config.page_table_end_addr;
1886 	config.gart_config.page_table_base_addr = pa_config->gart_config.page_table_base_addr;
1887 	config.page_table_default_page_addr = pa_config->page_table_default_page_addr;
1888 
1889 	return dc->res_pool->hubbub->funcs->init_dchub_sys_ctx(dc->res_pool->hubbub, &config);
1890 }
1891 
1892 static bool patch_address_for_sbs_tb_stereo(
1893 		struct pipe_ctx *pipe_ctx, PHYSICAL_ADDRESS_LOC *addr)
1894 {
1895 	struct dc_plane_state *plane_state = pipe_ctx->plane_state;
1896 	bool sec_split = pipe_ctx->top_pipe &&
1897 			pipe_ctx->top_pipe->plane_state == pipe_ctx->plane_state;
1898 	if (sec_split && plane_state->address.type == PLN_ADDR_TYPE_GRPH_STEREO &&
1899 			(pipe_ctx->stream->timing.timing_3d_format ==
1900 			TIMING_3D_FORMAT_SIDE_BY_SIDE ||
1901 			pipe_ctx->stream->timing.timing_3d_format ==
1902 			TIMING_3D_FORMAT_TOP_AND_BOTTOM)) {
1903 		*addr = plane_state->address.grph_stereo.left_addr;
1904 		plane_state->address.grph_stereo.left_addr =
1905 				plane_state->address.grph_stereo.right_addr;
1906 		return true;
1907 	}
1908 
1909 	if (pipe_ctx->stream->view_format != VIEW_3D_FORMAT_NONE &&
1910 			plane_state->address.type != PLN_ADDR_TYPE_GRPH_STEREO) {
1911 		plane_state->address.type = PLN_ADDR_TYPE_GRPH_STEREO;
1912 		plane_state->address.grph_stereo.right_addr =
1913 				plane_state->address.grph_stereo.left_addr;
1914 	}
1915 	return false;
1916 }
1917 
1918 void dcn20_update_plane_addr(const struct dc *dc, struct pipe_ctx *pipe_ctx)
1919 {
1920 	bool addr_patched = false;
1921 	PHYSICAL_ADDRESS_LOC addr;
1922 	struct dc_plane_state *plane_state = pipe_ctx->plane_state;
1923 
1924 	if (plane_state == NULL)
1925 		return;
1926 
1927 	addr_patched = patch_address_for_sbs_tb_stereo(pipe_ctx, &addr);
1928 
1929 	// Call Helper to track VMID use
1930 	vm_helper_mark_vmid_used(dc->vm_helper, plane_state->address.vmid, pipe_ctx->plane_res.hubp->inst);
1931 
1932 	pipe_ctx->plane_res.hubp->funcs->hubp_program_surface_flip_and_addr(
1933 			pipe_ctx->plane_res.hubp,
1934 			&plane_state->address,
1935 			plane_state->flip_immediate);
1936 
1937 	plane_state->status.requested_address = plane_state->address;
1938 
1939 	if (plane_state->flip_immediate)
1940 		plane_state->status.current_address = plane_state->address;
1941 
1942 	if (addr_patched)
1943 		pipe_ctx->plane_state->address.grph_stereo.left_addr = addr;
1944 }
1945 
1946 void dcn20_unblank_stream(struct pipe_ctx *pipe_ctx,
1947 		struct dc_link_settings *link_settings)
1948 {
1949 	struct encoder_unblank_param params = { { 0 } };
1950 	struct dc_stream_state *stream = pipe_ctx->stream;
1951 	struct dc_link *link = stream->link;
1952 	struct dce_hwseq *hws = link->dc->hwseq;
1953 	struct pipe_ctx *odm_pipe;
1954 
1955 	params.opp_cnt = 1;
1956 	for (odm_pipe = pipe_ctx->next_odm_pipe; odm_pipe; odm_pipe = odm_pipe->next_odm_pipe) {
1957 		params.opp_cnt++;
1958 	}
1959 	/* only 3 items below are used by unblank */
1960 	params.timing = pipe_ctx->stream->timing;
1961 
1962 	params.link_settings.link_rate = link_settings->link_rate;
1963 
1964 	if (dc_is_dp_signal(pipe_ctx->stream->signal)) {
1965 		if (optc2_is_two_pixels_per_containter(&stream->timing) || params.opp_cnt > 1)
1966 			params.timing.pix_clk_100hz /= 2;
1967 		pipe_ctx->stream_res.stream_enc->funcs->dp_set_odm_combine(
1968 				pipe_ctx->stream_res.stream_enc, params.opp_cnt > 1);
1969 		pipe_ctx->stream_res.stream_enc->funcs->dp_unblank(pipe_ctx->stream_res.stream_enc, &params);
1970 	}
1971 
1972 	if (link->local_sink && link->local_sink->sink_signal == SIGNAL_TYPE_EDP) {
1973 		hws->funcs.edp_backlight_control(link, true);
1974 	}
1975 }
1976 
1977 void dcn20_setup_vupdate_interrupt(struct dc *dc, struct pipe_ctx *pipe_ctx)
1978 {
1979 	struct timing_generator *tg = pipe_ctx->stream_res.tg;
1980 	int start_line = dc->hwss.get_vupdate_offset_from_vsync(pipe_ctx);
1981 
1982 	if (start_line < 0)
1983 		start_line = 0;
1984 
1985 	if (tg->funcs->setup_vertical_interrupt2)
1986 		tg->funcs->setup_vertical_interrupt2(tg, start_line);
1987 }
1988 
1989 static void dcn20_reset_back_end_for_pipe(
1990 		struct dc *dc,
1991 		struct pipe_ctx *pipe_ctx,
1992 		struct dc_state *context)
1993 {
1994 	int i;
1995 	struct dc_link *link;
1996 	DC_LOGGER_INIT(dc->ctx->logger);
1997 	if (pipe_ctx->stream_res.stream_enc == NULL) {
1998 		pipe_ctx->stream = NULL;
1999 		return;
2000 	}
2001 
2002 	if (!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
2003 		link = pipe_ctx->stream->link;
2004 		/* DPMS may already disable or */
2005 		/* dpms_off status is incorrect due to fastboot
2006 		 * feature. When system resume from S4 with second
2007 		 * screen only, the dpms_off would be true but
2008 		 * VBIOS lit up eDP, so check link status too.
2009 		 */
2010 		if (!pipe_ctx->stream->dpms_off || link->link_status.link_active)
2011 			core_link_disable_stream(pipe_ctx);
2012 		else if (pipe_ctx->stream_res.audio)
2013 			dc->hwss.disable_audio_stream(pipe_ctx);
2014 
2015 		/* free acquired resources */
2016 		if (pipe_ctx->stream_res.audio) {
2017 			/*disable az_endpoint*/
2018 			pipe_ctx->stream_res.audio->funcs->az_disable(pipe_ctx->stream_res.audio);
2019 
2020 			/*free audio*/
2021 			if (dc->caps.dynamic_audio == true) {
2022 				/*we have to dynamic arbitrate the audio endpoints*/
2023 				/*we free the resource, need reset is_audio_acquired*/
2024 				update_audio_usage(&dc->current_state->res_ctx, dc->res_pool,
2025 						pipe_ctx->stream_res.audio, false);
2026 				pipe_ctx->stream_res.audio = NULL;
2027 			}
2028 		}
2029 	}
2030 	else if (pipe_ctx->stream_res.dsc) {
2031 		dp_set_dsc_enable(pipe_ctx, false);
2032 	}
2033 
2034 	/* by upper caller loop, parent pipe: pipe0, will be reset last.
2035 	 * back end share by all pipes and will be disable only when disable
2036 	 * parent pipe.
2037 	 */
2038 	if (pipe_ctx->top_pipe == NULL) {
2039 
2040 		if (pipe_ctx->stream_res.abm)
2041 			pipe_ctx->stream_res.abm->funcs->set_abm_immediate_disable(pipe_ctx->stream_res.abm);
2042 
2043 		pipe_ctx->stream_res.tg->funcs->disable_crtc(pipe_ctx->stream_res.tg);
2044 
2045 		pipe_ctx->stream_res.tg->funcs->enable_optc_clock(pipe_ctx->stream_res.tg, false);
2046 		if (pipe_ctx->stream_res.tg->funcs->set_odm_bypass)
2047 			pipe_ctx->stream_res.tg->funcs->set_odm_bypass(
2048 					pipe_ctx->stream_res.tg, &pipe_ctx->stream->timing);
2049 
2050 		if (pipe_ctx->stream_res.tg->funcs->set_drr)
2051 			pipe_ctx->stream_res.tg->funcs->set_drr(
2052 					pipe_ctx->stream_res.tg, NULL);
2053 	}
2054 
2055 	for (i = 0; i < dc->res_pool->pipe_count; i++)
2056 		if (&dc->current_state->res_ctx.pipe_ctx[i] == pipe_ctx)
2057 			break;
2058 
2059 	if (i == dc->res_pool->pipe_count)
2060 		return;
2061 
2062 	pipe_ctx->stream = NULL;
2063 	DC_LOG_DEBUG("Reset back end for pipe %d, tg:%d\n",
2064 					pipe_ctx->pipe_idx, pipe_ctx->stream_res.tg->inst);
2065 }
2066 
2067 void dcn20_reset_hw_ctx_wrap(
2068 		struct dc *dc,
2069 		struct dc_state *context)
2070 {
2071 	int i;
2072 	struct dce_hwseq *hws = dc->hwseq;
2073 
2074 	/* Reset Back End*/
2075 	for (i = dc->res_pool->pipe_count - 1; i >= 0 ; i--) {
2076 		struct pipe_ctx *pipe_ctx_old =
2077 			&dc->current_state->res_ctx.pipe_ctx[i];
2078 		struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i];
2079 
2080 		if (!pipe_ctx_old->stream)
2081 			continue;
2082 
2083 		if (pipe_ctx_old->top_pipe || pipe_ctx_old->prev_odm_pipe)
2084 			continue;
2085 
2086 		if (!pipe_ctx->stream ||
2087 				pipe_need_reprogram(pipe_ctx_old, pipe_ctx)) {
2088 			struct clock_source *old_clk = pipe_ctx_old->clock_source;
2089 
2090 			dcn20_reset_back_end_for_pipe(dc, pipe_ctx_old, dc->current_state);
2091 			if (hws->funcs.enable_stream_gating)
2092 				hws->funcs.enable_stream_gating(dc, pipe_ctx);
2093 			if (old_clk)
2094 				old_clk->funcs->cs_power_down(old_clk);
2095 		}
2096 	}
2097 }
2098 
2099 void dcn20_get_mpctree_visual_confirm_color(
2100 		struct pipe_ctx *pipe_ctx,
2101 		struct tg_color *color)
2102 {
2103 	const struct tg_color pipe_colors[6] = {
2104 			{MAX_TG_COLOR_VALUE, 0, 0}, // red
2105 			{MAX_TG_COLOR_VALUE, 0, MAX_TG_COLOR_VALUE}, // yellow
2106 			{0, MAX_TG_COLOR_VALUE, 0}, // blue
2107 			{MAX_TG_COLOR_VALUE / 2, 0, MAX_TG_COLOR_VALUE / 2}, // purple
2108 			{0, 0, MAX_TG_COLOR_VALUE}, // green
2109 			{MAX_TG_COLOR_VALUE, MAX_TG_COLOR_VALUE * 2 / 3, 0}, // orange
2110 	};
2111 
2112 	struct pipe_ctx *top_pipe = pipe_ctx;
2113 
2114 	while (top_pipe->top_pipe) {
2115 		top_pipe = top_pipe->top_pipe;
2116 	}
2117 
2118 	*color = pipe_colors[top_pipe->pipe_idx];
2119 }
2120 
2121 void dcn20_update_mpcc(struct dc *dc, struct pipe_ctx *pipe_ctx)
2122 {
2123 	struct dce_hwseq *hws = dc->hwseq;
2124 	struct hubp *hubp = pipe_ctx->plane_res.hubp;
2125 	struct mpcc_blnd_cfg blnd_cfg = { {0} };
2126 	bool per_pixel_alpha = pipe_ctx->plane_state->per_pixel_alpha;
2127 	int mpcc_id;
2128 	struct mpcc *new_mpcc;
2129 	struct mpc *mpc = dc->res_pool->mpc;
2130 	struct mpc_tree *mpc_tree_params = &(pipe_ctx->stream_res.opp->mpc_tree_params);
2131 
2132 	// input to MPCC is always RGB, by default leave black_color at 0
2133 	if (dc->debug.visual_confirm == VISUAL_CONFIRM_HDR) {
2134 		hws->funcs.get_hdr_visual_confirm_color(
2135 				pipe_ctx, &blnd_cfg.black_color);
2136 	} else if (dc->debug.visual_confirm == VISUAL_CONFIRM_SURFACE) {
2137 		hws->funcs.get_surface_visual_confirm_color(
2138 				pipe_ctx, &blnd_cfg.black_color);
2139 	} else if (dc->debug.visual_confirm == VISUAL_CONFIRM_MPCTREE) {
2140 		dcn20_get_mpctree_visual_confirm_color(
2141 				pipe_ctx, &blnd_cfg.black_color);
2142 	}
2143 
2144 	if (per_pixel_alpha)
2145 		blnd_cfg.alpha_mode = MPCC_ALPHA_BLEND_MODE_PER_PIXEL_ALPHA;
2146 	else
2147 		blnd_cfg.alpha_mode = MPCC_ALPHA_BLEND_MODE_GLOBAL_ALPHA;
2148 
2149 	blnd_cfg.overlap_only = false;
2150 	blnd_cfg.global_gain = 0xff;
2151 
2152 	if (pipe_ctx->plane_state->global_alpha)
2153 		blnd_cfg.global_alpha = pipe_ctx->plane_state->global_alpha_value;
2154 	else
2155 		blnd_cfg.global_alpha = 0xff;
2156 
2157 	blnd_cfg.background_color_bpc = 4;
2158 	blnd_cfg.bottom_gain_mode = 0;
2159 	blnd_cfg.top_gain = 0x1f000;
2160 	blnd_cfg.bottom_inside_gain = 0x1f000;
2161 	blnd_cfg.bottom_outside_gain = 0x1f000;
2162 	blnd_cfg.pre_multiplied_alpha = per_pixel_alpha;
2163 
2164 	/*
2165 	 * TODO: remove hack
2166 	 * Note: currently there is a bug in init_hw such that
2167 	 * on resume from hibernate, BIOS sets up MPCC0, and
2168 	 * we do mpcc_remove but the mpcc cannot go to idle
2169 	 * after remove. This cause us to pick mpcc1 here,
2170 	 * which causes a pstate hang for yet unknown reason.
2171 	 */
2172 	mpcc_id = hubp->inst;
2173 
2174 	/* check if this MPCC is already being used */
2175 	new_mpcc = mpc->funcs->get_mpcc_for_dpp(mpc_tree_params, mpcc_id);
2176 	/* remove MPCC if being used */
2177 	if (new_mpcc != NULL)
2178 		mpc->funcs->remove_mpcc(mpc, mpc_tree_params, new_mpcc);
2179 	else
2180 		if (dc->debug.sanity_checks)
2181 			mpc->funcs->assert_mpcc_idle_before_connect(
2182 					dc->res_pool->mpc, mpcc_id);
2183 
2184 	/* Call MPC to insert new plane */
2185 	new_mpcc = mpc->funcs->insert_plane(dc->res_pool->mpc,
2186 			mpc_tree_params,
2187 			&blnd_cfg,
2188 			NULL,
2189 			NULL,
2190 			hubp->inst,
2191 			mpcc_id);
2192 
2193 	ASSERT(new_mpcc != NULL);
2194 	hubp->opp_id = pipe_ctx->stream_res.opp->inst;
2195 	hubp->mpcc_id = mpcc_id;
2196 }
2197 
2198 void dcn20_enable_stream(struct pipe_ctx *pipe_ctx)
2199 {
2200 	enum dc_lane_count lane_count =
2201 		pipe_ctx->stream->link->cur_link_settings.lane_count;
2202 
2203 	struct dc_crtc_timing *timing = &pipe_ctx->stream->timing;
2204 	struct dc_link *link = pipe_ctx->stream->link;
2205 
2206 	uint32_t active_total_with_borders;
2207 	uint32_t early_control = 0;
2208 	struct timing_generator *tg = pipe_ctx->stream_res.tg;
2209 
2210 	/* For MST, there are multiply stream go to only one link.
2211 	 * connect DIG back_end to front_end while enable_stream and
2212 	 * disconnect them during disable_stream
2213 	 * BY this, it is logic clean to separate stream and link
2214 	 */
2215 	link->link_enc->funcs->connect_dig_be_to_fe(link->link_enc,
2216 						    pipe_ctx->stream_res.stream_enc->id, true);
2217 
2218 	if (pipe_ctx->plane_state && pipe_ctx->plane_state->flip_immediate != 1) {
2219 		if (link->dc->hwss.program_dmdata_engine)
2220 			link->dc->hwss.program_dmdata_engine(pipe_ctx);
2221 	}
2222 
2223 	link->dc->hwss.update_info_frame(pipe_ctx);
2224 
2225 	/* enable early control to avoid corruption on DP monitor*/
2226 	active_total_with_borders =
2227 			timing->h_addressable
2228 				+ timing->h_border_left
2229 				+ timing->h_border_right;
2230 
2231 	if (lane_count != 0)
2232 		early_control = active_total_with_borders % lane_count;
2233 
2234 	if (early_control == 0)
2235 		early_control = lane_count;
2236 
2237 	tg->funcs->set_early_control(tg, early_control);
2238 
2239 	/* enable audio only within mode set */
2240 	if (pipe_ctx->stream_res.audio != NULL) {
2241 		if (dc_is_dp_signal(pipe_ctx->stream->signal))
2242 			pipe_ctx->stream_res.stream_enc->funcs->dp_audio_enable(pipe_ctx->stream_res.stream_enc);
2243 	}
2244 }
2245 
2246 void dcn20_program_dmdata_engine(struct pipe_ctx *pipe_ctx)
2247 {
2248 	struct dc_stream_state    *stream     = pipe_ctx->stream;
2249 	struct hubp               *hubp       = pipe_ctx->plane_res.hubp;
2250 	bool                       enable     = false;
2251 	struct stream_encoder     *stream_enc = pipe_ctx->stream_res.stream_enc;
2252 	enum dynamic_metadata_mode mode       = dc_is_dp_signal(stream->signal)
2253 							? dmdata_dp
2254 							: dmdata_hdmi;
2255 
2256 	/* if using dynamic meta, don't set up generic infopackets */
2257 	if (pipe_ctx->stream->dmdata_address.quad_part != 0) {
2258 		pipe_ctx->stream_res.encoder_info_frame.hdrsmd.valid = false;
2259 		enable = true;
2260 	}
2261 
2262 	if (!hubp)
2263 		return;
2264 
2265 	if (!stream_enc || !stream_enc->funcs->set_dynamic_metadata)
2266 		return;
2267 
2268 	stream_enc->funcs->set_dynamic_metadata(stream_enc, enable,
2269 						hubp->inst, mode);
2270 }
2271 
2272 void dcn20_fpga_init_hw(struct dc *dc)
2273 {
2274 	int i, j;
2275 	struct dce_hwseq *hws = dc->hwseq;
2276 	struct resource_pool *res_pool = dc->res_pool;
2277 	struct dc_state  *context = dc->current_state;
2278 
2279 	if (dc->clk_mgr && dc->clk_mgr->funcs->init_clocks)
2280 		dc->clk_mgr->funcs->init_clocks(dc->clk_mgr);
2281 
2282 	// Initialize the dccg
2283 	if (res_pool->dccg->funcs->dccg_init)
2284 		res_pool->dccg->funcs->dccg_init(res_pool->dccg);
2285 
2286 	//Enable ability to power gate / don't force power on permanently
2287 	hws->funcs.enable_power_gating_plane(hws, true);
2288 
2289 	// Specific to FPGA dccg and registers
2290 	REG_WRITE(RBBMIF_TIMEOUT_DIS, 0xFFFFFFFF);
2291 	REG_WRITE(RBBMIF_TIMEOUT_DIS_2, 0xFFFFFFFF);
2292 
2293 	hws->funcs.dccg_init(hws);
2294 
2295 	REG_UPDATE(DCHUBBUB_GLOBAL_TIMER_CNTL, DCHUBBUB_GLOBAL_TIMER_REFDIV, 2);
2296 	REG_UPDATE(DCHUBBUB_GLOBAL_TIMER_CNTL, DCHUBBUB_GLOBAL_TIMER_ENABLE, 1);
2297 	if (REG(REFCLK_CNTL))
2298 		REG_WRITE(REFCLK_CNTL, 0);
2299 	//
2300 
2301 
2302 	/* Blank pixel data with OPP DPG */
2303 	for (i = 0; i < dc->res_pool->timing_generator_count; i++) {
2304 		struct timing_generator *tg = dc->res_pool->timing_generators[i];
2305 
2306 		if (tg->funcs->is_tg_enabled(tg))
2307 			dcn20_init_blank(dc, tg);
2308 	}
2309 
2310 	for (i = 0; i < res_pool->timing_generator_count; i++) {
2311 		struct timing_generator *tg = dc->res_pool->timing_generators[i];
2312 
2313 		if (tg->funcs->is_tg_enabled(tg))
2314 			tg->funcs->lock(tg);
2315 	}
2316 
2317 	for (i = 0; i < dc->res_pool->pipe_count; i++) {
2318 		struct dpp *dpp = res_pool->dpps[i];
2319 
2320 		dpp->funcs->dpp_reset(dpp);
2321 	}
2322 
2323 	/* Reset all MPCC muxes */
2324 	res_pool->mpc->funcs->mpc_init(res_pool->mpc);
2325 
2326 	/* initialize OPP mpc_tree parameter */
2327 	for (i = 0; i < dc->res_pool->res_cap->num_opp; i++) {
2328 		res_pool->opps[i]->mpc_tree_params.opp_id = res_pool->opps[i]->inst;
2329 		res_pool->opps[i]->mpc_tree_params.opp_list = NULL;
2330 		for (j = 0; j < MAX_PIPES; j++)
2331 			res_pool->opps[i]->mpcc_disconnect_pending[j] = false;
2332 	}
2333 
2334 	for (i = 0; i < dc->res_pool->pipe_count; i++) {
2335 		struct timing_generator *tg = dc->res_pool->timing_generators[i];
2336 		struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i];
2337 		struct hubp *hubp = dc->res_pool->hubps[i];
2338 		struct dpp *dpp = dc->res_pool->dpps[i];
2339 
2340 		pipe_ctx->stream_res.tg = tg;
2341 		pipe_ctx->pipe_idx = i;
2342 
2343 		pipe_ctx->plane_res.hubp = hubp;
2344 		pipe_ctx->plane_res.dpp = dpp;
2345 		pipe_ctx->plane_res.mpcc_inst = dpp->inst;
2346 		hubp->mpcc_id = dpp->inst;
2347 		hubp->opp_id = OPP_ID_INVALID;
2348 		hubp->power_gated = false;
2349 		pipe_ctx->stream_res.opp = NULL;
2350 
2351 		hubp->funcs->hubp_init(hubp);
2352 
2353 		//dc->res_pool->opps[i]->mpc_tree_params.opp_id = dc->res_pool->opps[i]->inst;
2354 		//dc->res_pool->opps[i]->mpc_tree_params.opp_list = NULL;
2355 		dc->res_pool->opps[i]->mpcc_disconnect_pending[pipe_ctx->plane_res.mpcc_inst] = true;
2356 		pipe_ctx->stream_res.opp = dc->res_pool->opps[i];
2357 		/*to do*/
2358 		hws->funcs.plane_atomic_disconnect(dc, pipe_ctx);
2359 	}
2360 
2361 	/* initialize DWB pointer to MCIF_WB */
2362 	for (i = 0; i < res_pool->res_cap->num_dwb; i++)
2363 		res_pool->dwbc[i]->mcif = res_pool->mcif_wb[i];
2364 
2365 	for (i = 0; i < dc->res_pool->timing_generator_count; i++) {
2366 		struct timing_generator *tg = dc->res_pool->timing_generators[i];
2367 
2368 		if (tg->funcs->is_tg_enabled(tg))
2369 			tg->funcs->unlock(tg);
2370 	}
2371 
2372 	for (i = 0; i < dc->res_pool->pipe_count; i++) {
2373 		struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i];
2374 
2375 		dc->hwss.disable_plane(dc, pipe_ctx);
2376 
2377 		pipe_ctx->stream_res.tg = NULL;
2378 		pipe_ctx->plane_res.hubp = NULL;
2379 	}
2380 
2381 	for (i = 0; i < dc->res_pool->timing_generator_count; i++) {
2382 		struct timing_generator *tg = dc->res_pool->timing_generators[i];
2383 
2384 		tg->funcs->tg_init(tg);
2385 	}
2386 }
2387