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_hwseq.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 			if (dc->res_pool->stream_enc[i]->vpg)
100 				dc->res_pool->stream_enc[i]->vpg->funcs->vpg_powerdown(dc->res_pool->stream_enc[i]->vpg);
101 #if defined(CONFIG_DRM_AMD_DC_FP)
102 		for (i = 0; i < dc->res_pool->hpo_dp_stream_enc_count; i++)
103 			dc->res_pool->hpo_dp_stream_enc[i]->vpg->funcs->vpg_powerdown(dc->res_pool->hpo_dp_stream_enc[i]->vpg);
104 #endif
105 	}
106 
107 }
108 
109 void dcn31_init_hw(struct dc *dc)
110 {
111 	struct abm **abms = dc->res_pool->multiple_abms;
112 	struct dce_hwseq *hws = dc->hwseq;
113 	struct dc_bios *dcb = dc->ctx->dc_bios;
114 	struct resource_pool *res_pool = dc->res_pool;
115 	uint32_t backlight = MAX_BACKLIGHT_LEVEL;
116 	uint32_t user_level = MAX_BACKLIGHT_LEVEL;
117 	int i;
118 
119 	if (dc->clk_mgr && dc->clk_mgr->funcs->init_clocks)
120 		dc->clk_mgr->funcs->init_clocks(dc->clk_mgr);
121 
122 	if (!dcb->funcs->is_accelerated_mode(dcb)) {
123 		hws->funcs.bios_golden_init(dc);
124 		if (hws->funcs.disable_vga)
125 			hws->funcs.disable_vga(dc->hwseq);
126 	}
127 	// Initialize the dccg
128 	if (res_pool->dccg->funcs->dccg_init)
129 		res_pool->dccg->funcs->dccg_init(res_pool->dccg);
130 
131 	enable_memory_low_power(dc);
132 
133 	if (dc->ctx->dc_bios->fw_info_valid) {
134 		res_pool->ref_clocks.xtalin_clock_inKhz =
135 				dc->ctx->dc_bios->fw_info.pll_info.crystal_frequency;
136 
137 		if (res_pool->dccg && res_pool->hubbub) {
138 
139 			(res_pool->dccg->funcs->get_dccg_ref_freq)(res_pool->dccg,
140 					dc->ctx->dc_bios->fw_info.pll_info.crystal_frequency,
141 					&res_pool->ref_clocks.dccg_ref_clock_inKhz);
142 
143 			(res_pool->hubbub->funcs->get_dchub_ref_freq)(res_pool->hubbub,
144 					res_pool->ref_clocks.dccg_ref_clock_inKhz,
145 					&res_pool->ref_clocks.dchub_ref_clock_inKhz);
146 		} else {
147 			// Not all ASICs have DCCG sw component
148 			res_pool->ref_clocks.dccg_ref_clock_inKhz =
149 					res_pool->ref_clocks.xtalin_clock_inKhz;
150 			res_pool->ref_clocks.dchub_ref_clock_inKhz =
151 					res_pool->ref_clocks.xtalin_clock_inKhz;
152 		}
153 	} else
154 		ASSERT_CRITICAL(false);
155 
156 	for (i = 0; i < dc->link_count; i++) {
157 		/* Power up AND update implementation according to the
158 		 * required signal (which may be different from the
159 		 * default signal on connector).
160 		 */
161 		struct dc_link *link = dc->links[i];
162 
163 		if (link->ep_type != DISPLAY_ENDPOINT_PHY)
164 			continue;
165 
166 		link->link_enc->funcs->hw_init(link->link_enc);
167 
168 		/* Check for enabled DIG to identify enabled display */
169 		if (link->link_enc->funcs->is_dig_enabled &&
170 			link->link_enc->funcs->is_dig_enabled(link->link_enc)) {
171 			link->link_status.link_active = true;
172 			if (link->link_enc->funcs->fec_is_active &&
173 					link->link_enc->funcs->fec_is_active(link->link_enc))
174 				link->fec_state = dc_link_fec_enabled;
175 		}
176 	}
177 
178 	/* we want to turn off all dp displays before doing detection */
179 	dc->link_srv->blank_all_dp_displays(dc);
180 
181 	if (hws->funcs.enable_power_gating_plane)
182 		hws->funcs.enable_power_gating_plane(dc->hwseq, true);
183 
184 	/* If taking control over from VBIOS, we may want to optimize our first
185 	 * mode set, so we need to skip powering down pipes until we know which
186 	 * pipes we want to use.
187 	 * Otherwise, if taking control is not possible, we need to power
188 	 * everything down.
189 	 */
190 	if (dcb->funcs->is_accelerated_mode(dcb) || !dc->config.seamless_boot_edp_requested) {
191 
192 		// we want to turn off edp displays if odm is enabled and no seamless boot
193 		if (!dc->caps.seamless_odm) {
194 			for (i = 0; i < dc->res_pool->timing_generator_count; i++) {
195 				struct timing_generator *tg = dc->res_pool->timing_generators[i];
196 				uint32_t num_opps, opp_id_src0, opp_id_src1;
197 
198 				num_opps = 1;
199 				if (tg) {
200 					if (tg->funcs->is_tg_enabled(tg) && tg->funcs->get_optc_source) {
201 						tg->funcs->get_optc_source(tg, &num_opps,
202 								&opp_id_src0, &opp_id_src1);
203 					}
204 				}
205 
206 				if (num_opps > 1) {
207 					dc->link_srv->blank_all_edp_displays(dc);
208 					break;
209 				}
210 			}
211 		}
212 
213 		hws->funcs.init_pipes(dc, dc->current_state);
214 		if (dc->res_pool->hubbub->funcs->allow_self_refresh_control)
215 			dc->res_pool->hubbub->funcs->allow_self_refresh_control(dc->res_pool->hubbub,
216 					!dc->res_pool->hubbub->ctx->dc->debug.disable_stutter);
217 	}
218 
219 	for (i = 0; i < res_pool->audio_count; i++) {
220 		struct audio *audio = res_pool->audios[i];
221 
222 		audio->funcs->hw_init(audio);
223 	}
224 
225 	for (i = 0; i < dc->link_count; i++) {
226 		struct dc_link *link = dc->links[i];
227 
228 		if (link->panel_cntl) {
229 			backlight = link->panel_cntl->funcs->hw_init(link->panel_cntl);
230 			user_level = link->panel_cntl->stored_backlight_registers.USER_LEVEL;
231 		}
232 	}
233 
234 	for (i = 0; i < dc->res_pool->pipe_count; i++) {
235 		if (abms[i] != NULL)
236 			abms[i]->funcs->abm_init(abms[i], backlight, user_level);
237 	}
238 
239 	/* power AFMT HDMI memory TODO: may move to dis/en output save power*/
240 	REG_WRITE(DIO_MEM_PWR_CTRL, 0);
241 
242 	// Set i2c to light sleep until engine is setup
243 	if (dc->debug.enable_mem_low_power.bits.i2c)
244 		REG_UPDATE(DIO_MEM_PWR_CTRL, I2C_LIGHT_SLEEP_FORCE, 1);
245 
246 	if (hws->funcs.setup_hpo_hw_control)
247 		hws->funcs.setup_hpo_hw_control(hws, false);
248 
249 	if (!dc->debug.disable_clock_gate) {
250 		/* enable all DCN clock gating */
251 		REG_WRITE(DCCG_GATE_DISABLE_CNTL, 0);
252 
253 		REG_WRITE(DCCG_GATE_DISABLE_CNTL2, 0);
254 
255 		REG_UPDATE(DCFCLK_CNTL, DCFCLK_GATE_DIS, 0);
256 	}
257 
258 	if (!dcb->funcs->is_accelerated_mode(dcb) && dc->res_pool->hubbub->funcs->init_watermarks)
259 		dc->res_pool->hubbub->funcs->init_watermarks(dc->res_pool->hubbub);
260 
261 	if (dc->clk_mgr->funcs->notify_wm_ranges)
262 		dc->clk_mgr->funcs->notify_wm_ranges(dc->clk_mgr);
263 
264 	if (dc->clk_mgr->funcs->set_hard_max_memclk && !dc->clk_mgr->dc_mode_softmax_enabled)
265 		dc->clk_mgr->funcs->set_hard_max_memclk(dc->clk_mgr);
266 
267 	if (dc->res_pool->hubbub->funcs->force_pstate_change_control)
268 		dc->res_pool->hubbub->funcs->force_pstate_change_control(
269 				dc->res_pool->hubbub, false, false);
270 #if defined(CONFIG_DRM_AMD_DC_FP)
271 	if (dc->res_pool->hubbub->funcs->init_crb)
272 		dc->res_pool->hubbub->funcs->init_crb(dc->res_pool->hubbub);
273 #endif
274 
275 	// Get DMCUB capabilities
276 	dc_dmub_srv_query_caps_cmd(dc->ctx->dmub_srv);
277 	dc->caps.dmub_caps.psr = dc->ctx->dmub_srv->dmub->feature_caps.psr;
278 	dc->caps.dmub_caps.mclk_sw = dc->ctx->dmub_srv->dmub->feature_caps.fw_assisted_mclk_switch;
279 }
280 
281 void dcn31_dsc_pg_control(
282 		struct dce_hwseq *hws,
283 		unsigned int dsc_inst,
284 		bool power_on)
285 {
286 	uint32_t power_gate = power_on ? 0 : 1;
287 	uint32_t pwr_status = power_on ? 0 : 2;
288 	uint32_t org_ip_request_cntl = 0;
289 
290 	if (hws->ctx->dc->debug.disable_dsc_power_gate)
291 		return;
292 
293 	if (hws->ctx->dc->debug.root_clock_optimization.bits.dsc &&
294 		hws->ctx->dc->res_pool->dccg->funcs->enable_dsc &&
295 		power_on)
296 		hws->ctx->dc->res_pool->dccg->funcs->enable_dsc(
297 			hws->ctx->dc->res_pool->dccg, dsc_inst);
298 
299 	REG_GET(DC_IP_REQUEST_CNTL, IP_REQUEST_EN, &org_ip_request_cntl);
300 	if (org_ip_request_cntl == 0)
301 		REG_SET(DC_IP_REQUEST_CNTL, 0, IP_REQUEST_EN, 1);
302 
303 	switch (dsc_inst) {
304 	case 0: /* DSC0 */
305 		REG_UPDATE(DOMAIN16_PG_CONFIG,
306 				DOMAIN_POWER_GATE, power_gate);
307 
308 		REG_WAIT(DOMAIN16_PG_STATUS,
309 				DOMAIN_PGFSM_PWR_STATUS, pwr_status,
310 				1, 1000);
311 		break;
312 	case 1: /* DSC1 */
313 		REG_UPDATE(DOMAIN17_PG_CONFIG,
314 				DOMAIN_POWER_GATE, power_gate);
315 
316 		REG_WAIT(DOMAIN17_PG_STATUS,
317 				DOMAIN_PGFSM_PWR_STATUS, pwr_status,
318 				1, 1000);
319 		break;
320 	case 2: /* DSC2 */
321 		REG_UPDATE(DOMAIN18_PG_CONFIG,
322 				DOMAIN_POWER_GATE, power_gate);
323 
324 		REG_WAIT(DOMAIN18_PG_STATUS,
325 				DOMAIN_PGFSM_PWR_STATUS, pwr_status,
326 				1, 1000);
327 		break;
328 	default:
329 		BREAK_TO_DEBUGGER();
330 		break;
331 	}
332 
333 	if (org_ip_request_cntl == 0)
334 		REG_SET(DC_IP_REQUEST_CNTL, 0, IP_REQUEST_EN, 0);
335 
336 	if (hws->ctx->dc->debug.root_clock_optimization.bits.dsc) {
337 		if (hws->ctx->dc->res_pool->dccg->funcs->disable_dsc && !power_on)
338 			hws->ctx->dc->res_pool->dccg->funcs->disable_dsc(
339 				hws->ctx->dc->res_pool->dccg, dsc_inst);
340 	}
341 
342 }
343 
344 
345 void dcn31_enable_power_gating_plane(
346 	struct dce_hwseq *hws,
347 	bool enable)
348 {
349 	bool force_on = true; /* disable power gating */
350 	uint32_t org_ip_request_cntl = 0;
351 
352 	if (enable && !hws->ctx->dc->debug.disable_hubp_power_gate)
353 		force_on = false;
354 
355 	REG_GET(DC_IP_REQUEST_CNTL, IP_REQUEST_EN, &org_ip_request_cntl);
356 	if (org_ip_request_cntl == 0)
357 		REG_SET(DC_IP_REQUEST_CNTL, 0, IP_REQUEST_EN, 1);
358 	/* DCHUBP0/1/2/3/4/5 */
359 	REG_UPDATE(DOMAIN0_PG_CONFIG, DOMAIN_POWER_FORCEON, force_on);
360 	REG_UPDATE(DOMAIN2_PG_CONFIG, DOMAIN_POWER_FORCEON, force_on);
361 	/* DPP0/1/2/3/4/5 */
362 	REG_UPDATE(DOMAIN1_PG_CONFIG, DOMAIN_POWER_FORCEON, force_on);
363 	REG_UPDATE(DOMAIN3_PG_CONFIG, DOMAIN_POWER_FORCEON, force_on);
364 
365 	force_on = true; /* disable power gating */
366 	if (enable && !hws->ctx->dc->debug.disable_dsc_power_gate)
367 		force_on = false;
368 
369 	/* DCS0/1/2/3/4/5 */
370 	REG_UPDATE(DOMAIN16_PG_CONFIG, DOMAIN_POWER_FORCEON, force_on);
371 	REG_UPDATE(DOMAIN17_PG_CONFIG, DOMAIN_POWER_FORCEON, force_on);
372 	REG_UPDATE(DOMAIN18_PG_CONFIG, DOMAIN_POWER_FORCEON, force_on);
373 
374 	if (org_ip_request_cntl == 0)
375 		REG_SET(DC_IP_REQUEST_CNTL, 0, IP_REQUEST_EN, 0);
376 }
377 
378 void dcn31_update_info_frame(struct pipe_ctx *pipe_ctx)
379 {
380 	bool is_hdmi_tmds;
381 	bool is_dp;
382 
383 	ASSERT(pipe_ctx->stream);
384 
385 	if (pipe_ctx->stream_res.stream_enc == NULL)
386 		return;  /* this is not root pipe */
387 
388 	is_hdmi_tmds = dc_is_hdmi_tmds_signal(pipe_ctx->stream->signal);
389 	is_dp = dc_is_dp_signal(pipe_ctx->stream->signal);
390 
391 	if (!is_hdmi_tmds && !is_dp)
392 		return;
393 
394 	if (is_hdmi_tmds)
395 		pipe_ctx->stream_res.stream_enc->funcs->update_hdmi_info_packets(
396 			pipe_ctx->stream_res.stream_enc,
397 			&pipe_ctx->stream_res.encoder_info_frame);
398 	else if (pipe_ctx->stream->ctx->dc->link_srv->dp_is_128b_132b_signal(pipe_ctx)) {
399 		pipe_ctx->stream_res.hpo_dp_stream_enc->funcs->update_dp_info_packets(
400 				pipe_ctx->stream_res.hpo_dp_stream_enc,
401 				&pipe_ctx->stream_res.encoder_info_frame);
402 		return;
403 	} else {
404 		if (pipe_ctx->stream_res.stream_enc->funcs->update_dp_info_packets_sdp_line_num)
405 			pipe_ctx->stream_res.stream_enc->funcs->update_dp_info_packets_sdp_line_num(
406 				pipe_ctx->stream_res.stream_enc,
407 				&pipe_ctx->stream_res.encoder_info_frame);
408 
409 		pipe_ctx->stream_res.stream_enc->funcs->update_dp_info_packets(
410 			pipe_ctx->stream_res.stream_enc,
411 			&pipe_ctx->stream_res.encoder_info_frame);
412 	}
413 }
414 void dcn31_z10_save_init(struct dc *dc)
415 {
416 	union dmub_rb_cmd cmd;
417 
418 	memset(&cmd, 0, sizeof(cmd));
419 	cmd.dcn_restore.header.type = DMUB_CMD__IDLE_OPT;
420 	cmd.dcn_restore.header.sub_type = DMUB_CMD__IDLE_OPT_DCN_SAVE_INIT;
421 
422 	dc_wake_and_execute_dmub_cmd(dc->ctx, &cmd, DM_DMUB_WAIT_TYPE_WAIT);
423 }
424 
425 void dcn31_z10_restore(const struct dc *dc)
426 {
427 	union dmub_rb_cmd cmd;
428 
429 	/*
430 	 * DMUB notifies whether restore is required.
431 	 * Optimization to avoid sending commands when not required.
432 	 */
433 	if (!dc_dmub_srv_is_restore_required(dc->ctx->dmub_srv))
434 		return;
435 
436 	memset(&cmd, 0, sizeof(cmd));
437 	cmd.dcn_restore.header.type = DMUB_CMD__IDLE_OPT;
438 	cmd.dcn_restore.header.sub_type = DMUB_CMD__IDLE_OPT_DCN_RESTORE;
439 
440 	dc_wake_and_execute_dmub_cmd(dc->ctx, &cmd, DM_DMUB_WAIT_TYPE_WAIT);
441 }
442 
443 void dcn31_hubp_pg_control(struct dce_hwseq *hws, unsigned int hubp_inst, bool power_on)
444 {
445 	uint32_t power_gate = power_on ? 0 : 1;
446 	uint32_t pwr_status = power_on ? 0 : 2;
447 	uint32_t org_ip_request_cntl;
448 	if (hws->ctx->dc->debug.disable_hubp_power_gate)
449 		return;
450 
451 	if (REG(DOMAIN0_PG_CONFIG) == 0)
452 		return;
453 	REG_GET(DC_IP_REQUEST_CNTL, IP_REQUEST_EN, &org_ip_request_cntl);
454 	if (org_ip_request_cntl == 0)
455 		REG_SET(DC_IP_REQUEST_CNTL, 0, IP_REQUEST_EN, 1);
456 
457 	switch (hubp_inst) {
458 	case 0:
459 		REG_SET(DOMAIN0_PG_CONFIG, 0, DOMAIN_POWER_GATE, power_gate);
460 		REG_WAIT(DOMAIN0_PG_STATUS, DOMAIN_PGFSM_PWR_STATUS, pwr_status, 1, 1000);
461 		break;
462 	case 1:
463 		REG_SET(DOMAIN1_PG_CONFIG, 0, DOMAIN_POWER_GATE, power_gate);
464 		REG_WAIT(DOMAIN1_PG_STATUS, DOMAIN_PGFSM_PWR_STATUS, pwr_status, 1, 1000);
465 		break;
466 	case 2:
467 		REG_SET(DOMAIN2_PG_CONFIG, 0, DOMAIN_POWER_GATE, power_gate);
468 		REG_WAIT(DOMAIN2_PG_STATUS, DOMAIN_PGFSM_PWR_STATUS, pwr_status, 1, 1000);
469 		break;
470 	case 3:
471 		REG_SET(DOMAIN3_PG_CONFIG, 0, DOMAIN_POWER_GATE, power_gate);
472 		REG_WAIT(DOMAIN3_PG_STATUS, DOMAIN_PGFSM_PWR_STATUS, pwr_status, 1, 1000);
473 		break;
474 	default:
475 		BREAK_TO_DEBUGGER();
476 		break;
477 	}
478 	if (org_ip_request_cntl == 0)
479 		REG_SET(DC_IP_REQUEST_CNTL, 0, IP_REQUEST_EN, 0);
480 }
481 
482 int dcn31_init_sys_ctx(struct dce_hwseq *hws, struct dc *dc, struct dc_phy_addr_space_config *pa_config)
483 {
484 	struct dcn_hubbub_phys_addr_config config;
485 
486 	config.system_aperture.fb_top = pa_config->system_aperture.fb_top;
487 	config.system_aperture.fb_offset = pa_config->system_aperture.fb_offset;
488 	config.system_aperture.fb_base = pa_config->system_aperture.fb_base;
489 	config.system_aperture.agp_top = pa_config->system_aperture.agp_top;
490 	config.system_aperture.agp_bot = pa_config->system_aperture.agp_bot;
491 	config.system_aperture.agp_base = pa_config->system_aperture.agp_base;
492 	config.gart_config.page_table_start_addr = pa_config->gart_config.page_table_start_addr;
493 	config.gart_config.page_table_end_addr = pa_config->gart_config.page_table_end_addr;
494 
495 	if (pa_config->gart_config.base_addr_is_mc_addr) {
496 		/* Convert from MC address to offset into FB */
497 		config.gart_config.page_table_base_addr = pa_config->gart_config.page_table_base_addr -
498 				pa_config->system_aperture.fb_base +
499 				pa_config->system_aperture.fb_offset;
500 	} else
501 		config.gart_config.page_table_base_addr = pa_config->gart_config.page_table_base_addr;
502 
503 	return dc->res_pool->hubbub->funcs->init_dchub_sys_ctx(dc->res_pool->hubbub, &config);
504 }
505 
506 static void dcn31_reset_back_end_for_pipe(
507 		struct dc *dc,
508 		struct pipe_ctx *pipe_ctx,
509 		struct dc_state *context)
510 {
511 	struct dc_link *link;
512 
513 	DC_LOGGER_INIT(dc->ctx->logger);
514 	if (pipe_ctx->stream_res.stream_enc == NULL) {
515 		pipe_ctx->stream = NULL;
516 		return;
517 	}
518 	ASSERT(!pipe_ctx->top_pipe);
519 
520 	dc->hwss.set_abm_immediate_disable(pipe_ctx);
521 
522 	pipe_ctx->stream_res.tg->funcs->set_dsc_config(
523 			pipe_ctx->stream_res.tg,
524 			OPTC_DSC_DISABLED, 0, 0);
525 	pipe_ctx->stream_res.tg->funcs->disable_crtc(pipe_ctx->stream_res.tg);
526 	pipe_ctx->stream_res.tg->funcs->enable_optc_clock(pipe_ctx->stream_res.tg, false);
527 	if (pipe_ctx->stream_res.tg->funcs->set_odm_bypass)
528 		pipe_ctx->stream_res.tg->funcs->set_odm_bypass(
529 				pipe_ctx->stream_res.tg, &pipe_ctx->stream->timing);
530 	if (dc_is_hdmi_tmds_signal(pipe_ctx->stream->signal))
531 		pipe_ctx->stream->link->phy_state.symclk_ref_cnts.otg = 0;
532 
533 	if (pipe_ctx->stream_res.tg->funcs->set_drr)
534 		pipe_ctx->stream_res.tg->funcs->set_drr(
535 				pipe_ctx->stream_res.tg, NULL);
536 
537 	link = pipe_ctx->stream->link;
538 	/* DPMS may already disable or */
539 	/* dpms_off status is incorrect due to fastboot
540 	 * feature. When system resume from S4 with second
541 	 * screen only, the dpms_off would be true but
542 	 * VBIOS lit up eDP, so check link status too.
543 	 */
544 	if (!pipe_ctx->stream->dpms_off || link->link_status.link_active)
545 		dc->link_srv->set_dpms_off(pipe_ctx);
546 	else if (pipe_ctx->stream_res.audio)
547 		dc->hwss.disable_audio_stream(pipe_ctx);
548 
549 	/* free acquired resources */
550 	if (pipe_ctx->stream_res.audio) {
551 		/*disable az_endpoint*/
552 		pipe_ctx->stream_res.audio->funcs->az_disable(pipe_ctx->stream_res.audio);
553 
554 		/*free audio*/
555 		if (dc->caps.dynamic_audio == true) {
556 			/*we have to dynamic arbitrate the audio endpoints*/
557 			/*we free the resource, need reset is_audio_acquired*/
558 			update_audio_usage(&dc->current_state->res_ctx, dc->res_pool,
559 					pipe_ctx->stream_res.audio, false);
560 			pipe_ctx->stream_res.audio = NULL;
561 		}
562 	}
563 
564 	pipe_ctx->stream = NULL;
565 	DC_LOG_DEBUG("Reset back end for pipe %d, tg:%d\n",
566 					pipe_ctx->pipe_idx, pipe_ctx->stream_res.tg->inst);
567 }
568 
569 void dcn31_reset_hw_ctx_wrap(
570 		struct dc *dc,
571 		struct dc_state *context)
572 {
573 	int i;
574 	struct dce_hwseq *hws = dc->hwseq;
575 
576 	/* Reset Back End*/
577 	for (i = dc->res_pool->pipe_count - 1; i >= 0 ; i--) {
578 		struct pipe_ctx *pipe_ctx_old =
579 			&dc->current_state->res_ctx.pipe_ctx[i];
580 		struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i];
581 
582 		if (!pipe_ctx_old->stream)
583 			continue;
584 
585 		if (pipe_ctx_old->top_pipe || pipe_ctx_old->prev_odm_pipe)
586 			continue;
587 
588 		if (!pipe_ctx->stream ||
589 				pipe_need_reprogram(pipe_ctx_old, pipe_ctx)) {
590 			struct clock_source *old_clk = pipe_ctx_old->clock_source;
591 
592 			/* Reset pipe which is seamless boot stream. */
593 			if (!pipe_ctx_old->plane_state &&
594 				dc->res_pool->hubbub->funcs->program_det_size &&
595 				dc->res_pool->hubbub->funcs->wait_for_det_apply) {
596 				dc->res_pool->hubbub->funcs->program_det_size(
597 					dc->res_pool->hubbub, pipe_ctx_old->plane_res.hubp->inst, 0);
598 				/* Wait det size changed. */
599 				dc->res_pool->hubbub->funcs->wait_for_det_apply(
600 					dc->res_pool->hubbub, pipe_ctx_old->plane_res.hubp->inst);
601 			}
602 
603 			dcn31_reset_back_end_for_pipe(dc, pipe_ctx_old, dc->current_state);
604 			if (hws->funcs.enable_stream_gating)
605 				hws->funcs.enable_stream_gating(dc, pipe_ctx_old);
606 			if (old_clk)
607 				old_clk->funcs->cs_power_down(old_clk);
608 		}
609 	}
610 
611 	/* New dc_state in the process of being applied to hardware. */
612 	link_enc_cfg_set_transient_mode(dc, dc->current_state, context);
613 }
614 
615 void dcn31_setup_hpo_hw_control(const struct dce_hwseq *hws, bool enable)
616 {
617 	if (hws->ctx->dc->debug.hpo_optimization)
618 		REG_UPDATE(HPO_TOP_HW_CONTROL, HPO_IO_EN, !!enable);
619 }
620