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 
26 
27 #include "dm_services.h"
28 #include "dm_helpers.h"
29 #include "core_types.h"
30 #include "resource.h"
31 #include "dccg.h"
32 #include "dce/dce_hwseq.h"
33 #include "clk_mgr.h"
34 #include "reg_helper.h"
35 #include "abm.h"
36 #include "hubp.h"
37 #include "dchubbub.h"
38 #include "timing_generator.h"
39 #include "opp.h"
40 #include "ipp.h"
41 #include "mpc.h"
42 #include "mcif_wb.h"
43 #include "dc_dmub_srv.h"
44 #include "dcn31_hwseq.h"
45 #include "link_hwss.h"
46 #include "dpcd_defs.h"
47 #include "dce/dmub_outbox.h"
48 #include "link.h"
49 #include "dcn10/dcn10_hw_sequencer.h"
50 #include "inc/link_enc_cfg.h"
51 #include "dcn30/dcn30_vpg.h"
52 #include "dce/dce_i2c_hw.h"
53 
54 #define DC_LOGGER_INIT(logger)
55 
56 #define CTX \
57 	hws->ctx
58 #define REG(reg)\
59 	hws->regs->reg
60 #define DC_LOGGER \
61 		dc->ctx->logger
62 
63 
64 #undef FN
65 #define FN(reg_name, field_name) \
66 	hws->shifts->field_name, hws->masks->field_name
67 
68 static void enable_memory_low_power(struct dc *dc)
69 {
70 	struct dce_hwseq *hws = dc->hwseq;
71 	int i;
72 
73 	if (dc->debug.enable_mem_low_power.bits.dmcu) {
74 		// Force ERAM to shutdown if DMCU is not enabled
75 		if (dc->debug.disable_dmcu || dc->config.disable_dmcu) {
76 			REG_UPDATE(DMU_MEM_PWR_CNTL, DMCU_ERAM_MEM_PWR_FORCE, 3);
77 		}
78 	}
79 
80 	// Set default OPTC memory power states
81 	if (dc->debug.enable_mem_low_power.bits.optc) {
82 		// Shutdown when unassigned and light sleep in VBLANK
83 		REG_SET_2(ODM_MEM_PWR_CTRL3, 0, ODM_MEM_UNASSIGNED_PWR_MODE, 3, ODM_MEM_VBLANK_PWR_MODE, 1);
84 	}
85 
86 	if (dc->debug.enable_mem_low_power.bits.vga) {
87 		// Power down VGA memory
88 		REG_UPDATE(MMHUBBUB_MEM_PWR_CNTL, VGA_MEM_PWR_FORCE, 1);
89 	}
90 
91 	if (dc->debug.enable_mem_low_power.bits.mpc &&
92 		dc->res_pool->mpc->funcs->set_mpc_mem_lp_mode)
93 		dc->res_pool->mpc->funcs->set_mpc_mem_lp_mode(dc->res_pool->mpc);
94 
95 
96 	if (dc->debug.enable_mem_low_power.bits.vpg && dc->res_pool->stream_enc[0]->vpg->funcs->vpg_powerdown) {
97 		// Power down VPGs
98 		for (i = 0; i < dc->res_pool->stream_enc_count; i++)
99 			dc->res_pool->stream_enc[i]->vpg->funcs->vpg_powerdown(dc->res_pool->stream_enc[i]->vpg);
100 #if defined(CONFIG_DRM_AMD_DC_FP)
101 		for (i = 0; i < dc->res_pool->hpo_dp_stream_enc_count; i++)
102 			dc->res_pool->hpo_dp_stream_enc[i]->vpg->funcs->vpg_powerdown(dc->res_pool->hpo_dp_stream_enc[i]->vpg);
103 #endif
104 	}
105 
106 }
107 
108 void dcn31_init_hw(struct dc *dc)
109 {
110 	struct abm **abms = dc->res_pool->multiple_abms;
111 	struct dce_hwseq *hws = dc->hwseq;
112 	struct dc_bios *dcb = dc->ctx->dc_bios;
113 	struct resource_pool *res_pool = dc->res_pool;
114 	uint32_t backlight = MAX_BACKLIGHT_LEVEL;
115 	int i;
116 
117 	if (dc->clk_mgr && dc->clk_mgr->funcs->init_clocks)
118 		dc->clk_mgr->funcs->init_clocks(dc->clk_mgr);
119 
120 	if (!dcb->funcs->is_accelerated_mode(dcb)) {
121 		hws->funcs.bios_golden_init(dc);
122 		if (hws->funcs.disable_vga)
123 			hws->funcs.disable_vga(dc->hwseq);
124 	}
125 	// Initialize the dccg
126 	if (res_pool->dccg->funcs->dccg_init)
127 		res_pool->dccg->funcs->dccg_init(res_pool->dccg);
128 
129 	enable_memory_low_power(dc);
130 
131 	if (dc->ctx->dc_bios->fw_info_valid) {
132 		res_pool->ref_clocks.xtalin_clock_inKhz =
133 				dc->ctx->dc_bios->fw_info.pll_info.crystal_frequency;
134 
135 		if (res_pool->dccg && res_pool->hubbub) {
136 
137 			(res_pool->dccg->funcs->get_dccg_ref_freq)(res_pool->dccg,
138 					dc->ctx->dc_bios->fw_info.pll_info.crystal_frequency,
139 					&res_pool->ref_clocks.dccg_ref_clock_inKhz);
140 
141 			(res_pool->hubbub->funcs->get_dchub_ref_freq)(res_pool->hubbub,
142 					res_pool->ref_clocks.dccg_ref_clock_inKhz,
143 					&res_pool->ref_clocks.dchub_ref_clock_inKhz);
144 		} else {
145 			// Not all ASICs have DCCG sw component
146 			res_pool->ref_clocks.dccg_ref_clock_inKhz =
147 					res_pool->ref_clocks.xtalin_clock_inKhz;
148 			res_pool->ref_clocks.dchub_ref_clock_inKhz =
149 					res_pool->ref_clocks.xtalin_clock_inKhz;
150 		}
151 	} else
152 		ASSERT_CRITICAL(false);
153 
154 	for (i = 0; i < dc->link_count; i++) {
155 		/* Power up AND update implementation according to the
156 		 * required signal (which may be different from the
157 		 * default signal on connector).
158 		 */
159 		struct dc_link *link = dc->links[i];
160 
161 		if (link->ep_type != DISPLAY_ENDPOINT_PHY)
162 			continue;
163 
164 		link->link_enc->funcs->hw_init(link->link_enc);
165 
166 		/* Check for enabled DIG to identify enabled display */
167 		if (link->link_enc->funcs->is_dig_enabled &&
168 			link->link_enc->funcs->is_dig_enabled(link->link_enc)) {
169 			link->link_status.link_active = true;
170 			if (link->link_enc->funcs->fec_is_active &&
171 					link->link_enc->funcs->fec_is_active(link->link_enc))
172 				link->fec_state = dc_link_fec_enabled;
173 		}
174 	}
175 
176 	/* we want to turn off all dp displays before doing detection */
177 	dc->link_srv->blank_all_dp_displays(dc);
178 
179 	if (hws->funcs.enable_power_gating_plane)
180 		hws->funcs.enable_power_gating_plane(dc->hwseq, true);
181 
182 	/* If taking control over from VBIOS, we may want to optimize our first
183 	 * mode set, so we need to skip powering down pipes until we know which
184 	 * pipes we want to use.
185 	 * Otherwise, if taking control is not possible, we need to power
186 	 * everything down.
187 	 */
188 	if (dcb->funcs->is_accelerated_mode(dcb) || !dc->config.seamless_boot_edp_requested) {
189 
190 		// we want to turn off edp displays if odm is enabled and no seamless boot
191 		if (!dc->caps.seamless_odm) {
192 			for (i = 0; i < dc->res_pool->timing_generator_count; i++) {
193 				struct timing_generator *tg = dc->res_pool->timing_generators[i];
194 				uint32_t num_opps, opp_id_src0, opp_id_src1;
195 
196 				num_opps = 1;
197 				if (tg) {
198 					if (tg->funcs->is_tg_enabled(tg) && tg->funcs->get_optc_source) {
199 						tg->funcs->get_optc_source(tg, &num_opps,
200 								&opp_id_src0, &opp_id_src1);
201 					}
202 				}
203 
204 				if (num_opps > 1) {
205 					dc->link_srv->blank_all_edp_displays(dc);
206 					break;
207 				}
208 			}
209 		}
210 
211 		hws->funcs.init_pipes(dc, dc->current_state);
212 		if (dc->res_pool->hubbub->funcs->allow_self_refresh_control)
213 			dc->res_pool->hubbub->funcs->allow_self_refresh_control(dc->res_pool->hubbub,
214 					!dc->res_pool->hubbub->ctx->dc->debug.disable_stutter);
215 	}
216 
217 	for (i = 0; i < res_pool->audio_count; i++) {
218 		struct audio *audio = res_pool->audios[i];
219 
220 		audio->funcs->hw_init(audio);
221 	}
222 
223 	for (i = 0; i < dc->link_count; i++) {
224 		struct dc_link *link = dc->links[i];
225 
226 		if (link->panel_cntl)
227 			backlight = link->panel_cntl->funcs->hw_init(link->panel_cntl);
228 	}
229 
230 	for (i = 0; i < dc->res_pool->pipe_count; i++) {
231 		if (abms[i] != NULL)
232 			abms[i]->funcs->abm_init(abms[i], backlight);
233 	}
234 
235 	/* power AFMT HDMI memory TODO: may move to dis/en output save power*/
236 	REG_WRITE(DIO_MEM_PWR_CTRL, 0);
237 
238 	// Set i2c to light sleep until engine is setup
239 	if (dc->debug.enable_mem_low_power.bits.i2c)
240 		REG_UPDATE(DIO_MEM_PWR_CTRL, I2C_LIGHT_SLEEP_FORCE, 1);
241 
242 	if (hws->funcs.setup_hpo_hw_control)
243 		hws->funcs.setup_hpo_hw_control(hws, false);
244 
245 	if (!dc->debug.disable_clock_gate) {
246 		/* enable all DCN clock gating */
247 		REG_WRITE(DCCG_GATE_DISABLE_CNTL, 0);
248 
249 		REG_WRITE(DCCG_GATE_DISABLE_CNTL2, 0);
250 
251 		REG_UPDATE(DCFCLK_CNTL, DCFCLK_GATE_DIS, 0);
252 	}
253 
254 	if (!dcb->funcs->is_accelerated_mode(dcb) && dc->res_pool->hubbub->funcs->init_watermarks)
255 		dc->res_pool->hubbub->funcs->init_watermarks(dc->res_pool->hubbub);
256 
257 	if (dc->clk_mgr->funcs->notify_wm_ranges)
258 		dc->clk_mgr->funcs->notify_wm_ranges(dc->clk_mgr);
259 
260 	if (dc->clk_mgr->funcs->set_hard_max_memclk && !dc->clk_mgr->dc_mode_softmax_enabled)
261 		dc->clk_mgr->funcs->set_hard_max_memclk(dc->clk_mgr);
262 
263 	if (dc->res_pool->hubbub->funcs->force_pstate_change_control)
264 		dc->res_pool->hubbub->funcs->force_pstate_change_control(
265 				dc->res_pool->hubbub, false, false);
266 #if defined(CONFIG_DRM_AMD_DC_FP)
267 	if (dc->res_pool->hubbub->funcs->init_crb)
268 		dc->res_pool->hubbub->funcs->init_crb(dc->res_pool->hubbub);
269 #endif
270 
271 	// Get DMCUB capabilities
272 	dc_dmub_srv_query_caps_cmd(dc->ctx->dmub_srv);
273 	dc->caps.dmub_caps.psr = dc->ctx->dmub_srv->dmub->feature_caps.psr;
274 	dc->caps.dmub_caps.mclk_sw = dc->ctx->dmub_srv->dmub->feature_caps.fw_assisted_mclk_switch;
275 }
276 
277 void dcn31_dsc_pg_control(
278 		struct dce_hwseq *hws,
279 		unsigned int dsc_inst,
280 		bool power_on)
281 {
282 	uint32_t power_gate = power_on ? 0 : 1;
283 	uint32_t pwr_status = power_on ? 0 : 2;
284 	uint32_t org_ip_request_cntl = 0;
285 
286 	if (hws->ctx->dc->debug.disable_dsc_power_gate)
287 		return;
288 
289 	if (hws->ctx->dc->debug.root_clock_optimization.bits.dsc &&
290 		hws->ctx->dc->res_pool->dccg->funcs->enable_dsc &&
291 		power_on)
292 		hws->ctx->dc->res_pool->dccg->funcs->enable_dsc(
293 			hws->ctx->dc->res_pool->dccg, dsc_inst);
294 
295 	REG_GET(DC_IP_REQUEST_CNTL, IP_REQUEST_EN, &org_ip_request_cntl);
296 	if (org_ip_request_cntl == 0)
297 		REG_SET(DC_IP_REQUEST_CNTL, 0, IP_REQUEST_EN, 1);
298 
299 	switch (dsc_inst) {
300 	case 0: /* DSC0 */
301 		REG_UPDATE(DOMAIN16_PG_CONFIG,
302 				DOMAIN_POWER_GATE, power_gate);
303 
304 		REG_WAIT(DOMAIN16_PG_STATUS,
305 				DOMAIN_PGFSM_PWR_STATUS, pwr_status,
306 				1, 1000);
307 		break;
308 	case 1: /* DSC1 */
309 		REG_UPDATE(DOMAIN17_PG_CONFIG,
310 				DOMAIN_POWER_GATE, power_gate);
311 
312 		REG_WAIT(DOMAIN17_PG_STATUS,
313 				DOMAIN_PGFSM_PWR_STATUS, pwr_status,
314 				1, 1000);
315 		break;
316 	case 2: /* DSC2 */
317 		REG_UPDATE(DOMAIN18_PG_CONFIG,
318 				DOMAIN_POWER_GATE, power_gate);
319 
320 		REG_WAIT(DOMAIN18_PG_STATUS,
321 				DOMAIN_PGFSM_PWR_STATUS, pwr_status,
322 				1, 1000);
323 		break;
324 	default:
325 		BREAK_TO_DEBUGGER();
326 		break;
327 	}
328 
329 	if (org_ip_request_cntl == 0)
330 		REG_SET(DC_IP_REQUEST_CNTL, 0, IP_REQUEST_EN, 0);
331 
332 	if (hws->ctx->dc->debug.root_clock_optimization.bits.dsc) {
333 		if (hws->ctx->dc->res_pool->dccg->funcs->disable_dsc && !power_on)
334 			hws->ctx->dc->res_pool->dccg->funcs->disable_dsc(
335 				hws->ctx->dc->res_pool->dccg, dsc_inst);
336 	}
337 
338 }
339 
340 
341 void dcn31_enable_power_gating_plane(
342 	struct dce_hwseq *hws,
343 	bool enable)
344 {
345 	bool force_on = true; /* disable power gating */
346 	uint32_t org_ip_request_cntl = 0;
347 
348 	if (enable && !hws->ctx->dc->debug.disable_hubp_power_gate)
349 		force_on = false;
350 
351 	REG_GET(DC_IP_REQUEST_CNTL, IP_REQUEST_EN, &org_ip_request_cntl);
352 	if (org_ip_request_cntl == 0)
353 		REG_SET(DC_IP_REQUEST_CNTL, 0, IP_REQUEST_EN, 1);
354 	/* DCHUBP0/1/2/3/4/5 */
355 	REG_UPDATE(DOMAIN0_PG_CONFIG, DOMAIN_POWER_FORCEON, force_on);
356 	REG_UPDATE(DOMAIN2_PG_CONFIG, DOMAIN_POWER_FORCEON, force_on);
357 	/* DPP0/1/2/3/4/5 */
358 	REG_UPDATE(DOMAIN1_PG_CONFIG, DOMAIN_POWER_FORCEON, force_on);
359 	REG_UPDATE(DOMAIN3_PG_CONFIG, DOMAIN_POWER_FORCEON, force_on);
360 
361 	force_on = true; /* disable power gating */
362 	if (enable && !hws->ctx->dc->debug.disable_dsc_power_gate)
363 		force_on = false;
364 
365 	/* DCS0/1/2/3/4/5 */
366 	REG_UPDATE(DOMAIN16_PG_CONFIG, DOMAIN_POWER_FORCEON, force_on);
367 	REG_UPDATE(DOMAIN17_PG_CONFIG, DOMAIN_POWER_FORCEON, force_on);
368 	REG_UPDATE(DOMAIN18_PG_CONFIG, DOMAIN_POWER_FORCEON, force_on);
369 
370 	if (org_ip_request_cntl == 0)
371 		REG_SET(DC_IP_REQUEST_CNTL, 0, IP_REQUEST_EN, 0);
372 }
373 
374 void dcn31_update_info_frame(struct pipe_ctx *pipe_ctx)
375 {
376 	bool is_hdmi_tmds;
377 	bool is_dp;
378 
379 	ASSERT(pipe_ctx->stream);
380 
381 	if (pipe_ctx->stream_res.stream_enc == NULL)
382 		return;  /* this is not root pipe */
383 
384 	is_hdmi_tmds = dc_is_hdmi_tmds_signal(pipe_ctx->stream->signal);
385 	is_dp = dc_is_dp_signal(pipe_ctx->stream->signal);
386 
387 	if (!is_hdmi_tmds && !is_dp)
388 		return;
389 
390 	if (is_hdmi_tmds)
391 		pipe_ctx->stream_res.stream_enc->funcs->update_hdmi_info_packets(
392 			pipe_ctx->stream_res.stream_enc,
393 			&pipe_ctx->stream_res.encoder_info_frame);
394 	else if (pipe_ctx->stream->ctx->dc->link_srv->dp_is_128b_132b_signal(pipe_ctx)) {
395 		pipe_ctx->stream_res.hpo_dp_stream_enc->funcs->update_dp_info_packets(
396 				pipe_ctx->stream_res.hpo_dp_stream_enc,
397 				&pipe_ctx->stream_res.encoder_info_frame);
398 		return;
399 	} else {
400 		if (pipe_ctx->stream_res.stream_enc->funcs->update_dp_info_packets_sdp_line_num)
401 			pipe_ctx->stream_res.stream_enc->funcs->update_dp_info_packets_sdp_line_num(
402 				pipe_ctx->stream_res.stream_enc,
403 				&pipe_ctx->stream_res.encoder_info_frame);
404 
405 		pipe_ctx->stream_res.stream_enc->funcs->update_dp_info_packets(
406 			pipe_ctx->stream_res.stream_enc,
407 			&pipe_ctx->stream_res.encoder_info_frame);
408 	}
409 }
410 void dcn31_z10_save_init(struct dc *dc)
411 {
412 	union dmub_rb_cmd cmd;
413 
414 	memset(&cmd, 0, sizeof(cmd));
415 	cmd.dcn_restore.header.type = DMUB_CMD__IDLE_OPT;
416 	cmd.dcn_restore.header.sub_type = DMUB_CMD__IDLE_OPT_DCN_SAVE_INIT;
417 
418 	dm_execute_dmub_cmd(dc->ctx, &cmd, DM_DMUB_WAIT_TYPE_WAIT);
419 }
420 
421 void dcn31_z10_restore(const struct dc *dc)
422 {
423 	union dmub_rb_cmd cmd;
424 
425 	/*
426 	 * DMUB notifies whether restore is required.
427 	 * Optimization to avoid sending commands when not required.
428 	 */
429 	if (!dc_dmub_srv_is_restore_required(dc->ctx->dmub_srv))
430 		return;
431 
432 	memset(&cmd, 0, sizeof(cmd));
433 	cmd.dcn_restore.header.type = DMUB_CMD__IDLE_OPT;
434 	cmd.dcn_restore.header.sub_type = DMUB_CMD__IDLE_OPT_DCN_RESTORE;
435 
436 	dm_execute_dmub_cmd(dc->ctx, &cmd, DM_DMUB_WAIT_TYPE_WAIT);
437 }
438 
439 void dcn31_hubp_pg_control(struct dce_hwseq *hws, unsigned int hubp_inst, bool power_on)
440 {
441 	uint32_t power_gate = power_on ? 0 : 1;
442 	uint32_t pwr_status = power_on ? 0 : 2;
443 	uint32_t org_ip_request_cntl;
444 	if (hws->ctx->dc->debug.disable_hubp_power_gate)
445 		return;
446 
447 	if (REG(DOMAIN0_PG_CONFIG) == 0)
448 		return;
449 	REG_GET(DC_IP_REQUEST_CNTL, IP_REQUEST_EN, &org_ip_request_cntl);
450 	if (org_ip_request_cntl == 0)
451 		REG_SET(DC_IP_REQUEST_CNTL, 0, IP_REQUEST_EN, 1);
452 
453 	switch (hubp_inst) {
454 	case 0:
455 		REG_SET(DOMAIN0_PG_CONFIG, 0, DOMAIN_POWER_GATE, power_gate);
456 		REG_WAIT(DOMAIN0_PG_STATUS, DOMAIN_PGFSM_PWR_STATUS, pwr_status, 1, 1000);
457 		break;
458 	case 1:
459 		REG_SET(DOMAIN1_PG_CONFIG, 0, DOMAIN_POWER_GATE, power_gate);
460 		REG_WAIT(DOMAIN1_PG_STATUS, DOMAIN_PGFSM_PWR_STATUS, pwr_status, 1, 1000);
461 		break;
462 	case 2:
463 		REG_SET(DOMAIN2_PG_CONFIG, 0, DOMAIN_POWER_GATE, power_gate);
464 		REG_WAIT(DOMAIN2_PG_STATUS, DOMAIN_PGFSM_PWR_STATUS, pwr_status, 1, 1000);
465 		break;
466 	case 3:
467 		REG_SET(DOMAIN3_PG_CONFIG, 0, DOMAIN_POWER_GATE, power_gate);
468 		REG_WAIT(DOMAIN3_PG_STATUS, DOMAIN_PGFSM_PWR_STATUS, pwr_status, 1, 1000);
469 		break;
470 	default:
471 		BREAK_TO_DEBUGGER();
472 		break;
473 	}
474 	if (org_ip_request_cntl == 0)
475 		REG_SET(DC_IP_REQUEST_CNTL, 0, IP_REQUEST_EN, 0);
476 }
477 
478 int dcn31_init_sys_ctx(struct dce_hwseq *hws, struct dc *dc, struct dc_phy_addr_space_config *pa_config)
479 {
480 	struct dcn_hubbub_phys_addr_config config;
481 
482 	config.system_aperture.fb_top = pa_config->system_aperture.fb_top;
483 	config.system_aperture.fb_offset = pa_config->system_aperture.fb_offset;
484 	config.system_aperture.fb_base = pa_config->system_aperture.fb_base;
485 	config.system_aperture.agp_top = pa_config->system_aperture.agp_top;
486 	config.system_aperture.agp_bot = pa_config->system_aperture.agp_bot;
487 	config.system_aperture.agp_base = pa_config->system_aperture.agp_base;
488 	config.gart_config.page_table_start_addr = pa_config->gart_config.page_table_start_addr;
489 	config.gart_config.page_table_end_addr = pa_config->gart_config.page_table_end_addr;
490 
491 	if (pa_config->gart_config.base_addr_is_mc_addr) {
492 		/* Convert from MC address to offset into FB */
493 		config.gart_config.page_table_base_addr = pa_config->gart_config.page_table_base_addr -
494 				pa_config->system_aperture.fb_base +
495 				pa_config->system_aperture.fb_offset;
496 	} else
497 		config.gart_config.page_table_base_addr = pa_config->gart_config.page_table_base_addr;
498 
499 	return dc->res_pool->hubbub->funcs->init_dchub_sys_ctx(dc->res_pool->hubbub, &config);
500 }
501 
502 static void dcn31_reset_back_end_for_pipe(
503 		struct dc *dc,
504 		struct pipe_ctx *pipe_ctx,
505 		struct dc_state *context)
506 {
507 	struct dc_link *link;
508 
509 	DC_LOGGER_INIT(dc->ctx->logger);
510 	if (pipe_ctx->stream_res.stream_enc == NULL) {
511 		pipe_ctx->stream = NULL;
512 		return;
513 	}
514 	ASSERT(!pipe_ctx->top_pipe);
515 
516 	dc->hwss.set_abm_immediate_disable(pipe_ctx);
517 
518 	pipe_ctx->stream_res.tg->funcs->set_dsc_config(
519 			pipe_ctx->stream_res.tg,
520 			OPTC_DSC_DISABLED, 0, 0);
521 	pipe_ctx->stream_res.tg->funcs->disable_crtc(pipe_ctx->stream_res.tg);
522 	pipe_ctx->stream_res.tg->funcs->enable_optc_clock(pipe_ctx->stream_res.tg, false);
523 	if (pipe_ctx->stream_res.tg->funcs->set_odm_bypass)
524 		pipe_ctx->stream_res.tg->funcs->set_odm_bypass(
525 				pipe_ctx->stream_res.tg, &pipe_ctx->stream->timing);
526 	pipe_ctx->stream->link->phy_state.symclk_ref_cnts.otg = 0;
527 
528 	if (pipe_ctx->stream_res.tg->funcs->set_drr)
529 		pipe_ctx->stream_res.tg->funcs->set_drr(
530 				pipe_ctx->stream_res.tg, NULL);
531 
532 	link = pipe_ctx->stream->link;
533 	/* DPMS may already disable or */
534 	/* dpms_off status is incorrect due to fastboot
535 	 * feature. When system resume from S4 with second
536 	 * screen only, the dpms_off would be true but
537 	 * VBIOS lit up eDP, so check link status too.
538 	 */
539 	if (!pipe_ctx->stream->dpms_off || link->link_status.link_active)
540 		dc->link_srv->set_dpms_off(pipe_ctx);
541 	else if (pipe_ctx->stream_res.audio)
542 		dc->hwss.disable_audio_stream(pipe_ctx);
543 
544 	/* free acquired resources */
545 	if (pipe_ctx->stream_res.audio) {
546 		/*disable az_endpoint*/
547 		pipe_ctx->stream_res.audio->funcs->az_disable(pipe_ctx->stream_res.audio);
548 
549 		/*free audio*/
550 		if (dc->caps.dynamic_audio == true) {
551 			/*we have to dynamic arbitrate the audio endpoints*/
552 			/*we free the resource, need reset is_audio_acquired*/
553 			update_audio_usage(&dc->current_state->res_ctx, dc->res_pool,
554 					pipe_ctx->stream_res.audio, false);
555 			pipe_ctx->stream_res.audio = NULL;
556 		}
557 	}
558 
559 	pipe_ctx->stream = NULL;
560 	DC_LOG_DEBUG("Reset back end for pipe %d, tg:%d\n",
561 					pipe_ctx->pipe_idx, pipe_ctx->stream_res.tg->inst);
562 }
563 
564 void dcn31_reset_hw_ctx_wrap(
565 		struct dc *dc,
566 		struct dc_state *context)
567 {
568 	int i;
569 	struct dce_hwseq *hws = dc->hwseq;
570 
571 	/* Reset Back End*/
572 	for (i = dc->res_pool->pipe_count - 1; i >= 0 ; i--) {
573 		struct pipe_ctx *pipe_ctx_old =
574 			&dc->current_state->res_ctx.pipe_ctx[i];
575 		struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i];
576 
577 		if (!pipe_ctx_old->stream)
578 			continue;
579 
580 		if (pipe_ctx_old->top_pipe || pipe_ctx_old->prev_odm_pipe)
581 			continue;
582 
583 		if (!pipe_ctx->stream ||
584 				pipe_need_reprogram(pipe_ctx_old, pipe_ctx)) {
585 			struct clock_source *old_clk = pipe_ctx_old->clock_source;
586 
587 			dcn31_reset_back_end_for_pipe(dc, pipe_ctx_old, dc->current_state);
588 			if (hws->funcs.enable_stream_gating)
589 				hws->funcs.enable_stream_gating(dc, pipe_ctx_old);
590 			if (old_clk)
591 				old_clk->funcs->cs_power_down(old_clk);
592 		}
593 	}
594 
595 	/* New dc_state in the process of being applied to hardware. */
596 	link_enc_cfg_set_transient_mode(dc, dc->current_state, context);
597 }
598 
599 void dcn31_setup_hpo_hw_control(const struct dce_hwseq *hws, bool enable)
600 {
601 	if (hws->ctx->dc->debug.hpo_optimization)
602 		REG_UPDATE(HPO_TOP_HW_CONTROL, HPO_IO_EN, !!enable);
603 }
604