Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
[linux-2.6-microblaze.git] / drivers / gpu / drm / amd / display / dc / dcn31 / dcn31_hwseq.c
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 "dc_link_dp.h"
49 #include "inc/link_dpcd.h"
50
51 #define DC_LOGGER_INIT(logger)
52
53 #define CTX \
54         hws->ctx
55 #define REG(reg)\
56         hws->regs->reg
57 #define DC_LOGGER \
58                 dc->ctx->logger
59
60
61 #undef FN
62 #define FN(reg_name, field_name) \
63         hws->shifts->field_name, hws->masks->field_name
64
65 void dcn31_init_hw(struct dc *dc)
66 {
67         struct abm **abms = dc->res_pool->multiple_abms;
68         struct dce_hwseq *hws = dc->hwseq;
69         struct dc_bios *dcb = dc->ctx->dc_bios;
70         struct resource_pool *res_pool = dc->res_pool;
71         uint32_t backlight = MAX_BACKLIGHT_LEVEL;
72         int i, j;
73         int edp_num;
74
75         if (dc->clk_mgr && dc->clk_mgr->funcs->init_clocks)
76                 dc->clk_mgr->funcs->init_clocks(dc->clk_mgr);
77
78         // Initialize the dccg
79         if (res_pool->dccg->funcs->dccg_init)
80                 res_pool->dccg->funcs->dccg_init(res_pool->dccg);
81
82         if (IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
83
84                 REG_WRITE(REFCLK_CNTL, 0);
85                 REG_UPDATE(DCHUBBUB_GLOBAL_TIMER_CNTL, DCHUBBUB_GLOBAL_TIMER_ENABLE, 1);
86                 REG_WRITE(DIO_MEM_PWR_CTRL, 0);
87
88                 if (!dc->debug.disable_clock_gate) {
89                         /* enable all DCN clock gating */
90                         REG_WRITE(DCCG_GATE_DISABLE_CNTL, 0);
91
92                         REG_WRITE(DCCG_GATE_DISABLE_CNTL2, 0);
93
94                         REG_UPDATE(DCFCLK_CNTL, DCFCLK_GATE_DIS, 0);
95                 }
96
97                 //Enable ability to power gate / don't force power on permanently
98                 if (hws->funcs.enable_power_gating_plane)
99                         hws->funcs.enable_power_gating_plane(hws, true);
100
101                 return;
102         }
103
104         if (!dcb->funcs->is_accelerated_mode(dcb)) {
105                 hws->funcs.bios_golden_init(dc);
106                 hws->funcs.disable_vga(dc->hwseq);
107         }
108
109         if (dc->debug.enable_mem_low_power.bits.dmcu) {
110                 // Force ERAM to shutdown if DMCU is not enabled
111                 if (dc->debug.disable_dmcu || dc->config.disable_dmcu) {
112                         REG_UPDATE(DMU_MEM_PWR_CNTL, DMCU_ERAM_MEM_PWR_FORCE, 3);
113                 }
114         }
115
116         // Set default OPTC memory power states
117         if (dc->debug.enable_mem_low_power.bits.optc) {
118                 // Shutdown when unassigned and light sleep in VBLANK
119                 REG_SET_2(ODM_MEM_PWR_CTRL3, 0, ODM_MEM_UNASSIGNED_PWR_MODE, 3, ODM_MEM_VBLANK_PWR_MODE, 1);
120         }
121
122         if (dc->debug.enable_mem_low_power.bits.vga) {
123                 // Power down VGA memory
124                 REG_UPDATE(MMHUBBUB_MEM_PWR_CNTL, VGA_MEM_PWR_FORCE, 1);
125         }
126
127         if (dc->ctx->dc_bios->fw_info_valid) {
128                 res_pool->ref_clocks.xtalin_clock_inKhz =
129                                 dc->ctx->dc_bios->fw_info.pll_info.crystal_frequency;
130
131                 if (!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
132                         if (res_pool->dccg && res_pool->hubbub) {
133
134                                 (res_pool->dccg->funcs->get_dccg_ref_freq)(res_pool->dccg,
135                                                 dc->ctx->dc_bios->fw_info.pll_info.crystal_frequency,
136                                                 &res_pool->ref_clocks.dccg_ref_clock_inKhz);
137
138                                 (res_pool->hubbub->funcs->get_dchub_ref_freq)(res_pool->hubbub,
139                                                 res_pool->ref_clocks.dccg_ref_clock_inKhz,
140                                                 &res_pool->ref_clocks.dchub_ref_clock_inKhz);
141                         } else {
142                                 // Not all ASICs have DCCG sw component
143                                 res_pool->ref_clocks.dccg_ref_clock_inKhz =
144                                                 res_pool->ref_clocks.xtalin_clock_inKhz;
145                                 res_pool->ref_clocks.dchub_ref_clock_inKhz =
146                                                 res_pool->ref_clocks.xtalin_clock_inKhz;
147                         }
148                 }
149         } else
150                 ASSERT_CRITICAL(false);
151
152         for (i = 0; i < dc->link_count; i++) {
153                 /* Power up AND update implementation according to the
154                  * required signal (which may be different from the
155                  * default signal on connector).
156                  */
157                 struct dc_link *link = dc->links[i];
158
159                 link->link_enc->funcs->hw_init(link->link_enc);
160
161                 /* Check for enabled DIG to identify enabled display */
162                 if (link->link_enc->funcs->is_dig_enabled &&
163                         link->link_enc->funcs->is_dig_enabled(link->link_enc))
164                         link->link_status.link_active = true;
165         }
166
167         /* Power gate DSCs */
168         for (i = 0; i < res_pool->res_cap->num_dsc; i++)
169                 if (hws->funcs.dsc_pg_control != NULL)
170                         hws->funcs.dsc_pg_control(hws, res_pool->dscs[i]->inst, false);
171
172         /* we want to turn off all dp displays before doing detection */
173         if (dc->config.power_down_display_on_boot) {
174                 uint8_t dpcd_power_state = '\0';
175                 enum dc_status status = DC_ERROR_UNEXPECTED;
176
177                 for (i = 0; i < dc->link_count; i++) {
178                         if (dc->links[i]->connector_signal != SIGNAL_TYPE_DISPLAY_PORT)
179                                 continue;
180
181                         /* if any of the displays are lit up turn them off */
182                         status = core_link_read_dpcd(dc->links[i], DP_SET_POWER,
183                                                      &dpcd_power_state, sizeof(dpcd_power_state));
184                         if (status == DC_OK && dpcd_power_state == DP_POWER_STATE_D0) {
185                                 /* blank dp stream before power off receiver*/
186                                 if (dc->links[i]->link_enc->funcs->get_dig_frontend) {
187                                         unsigned int fe;
188
189                                         fe = dc->links[i]->link_enc->funcs->get_dig_frontend(
190                                                                                 dc->links[i]->link_enc);
191                                         if (fe == ENGINE_ID_UNKNOWN)
192                                                 continue;
193
194                                         for (j = 0; j < dc->res_pool->stream_enc_count; j++) {
195                                                 if (fe == dc->res_pool->stream_enc[j]->id) {
196                                                         dc->res_pool->stream_enc[j]->funcs->dp_blank(
197                                                                                 dc->res_pool->stream_enc[j]);
198                                                         break;
199                                                 }
200                                         }
201                                 }
202                                 dp_receiver_power_ctrl(dc->links[i], false);
203                         }
204                 }
205         }
206
207         /* If taking control over from VBIOS, we may want to optimize our first
208          * mode set, so we need to skip powering down pipes until we know which
209          * pipes we want to use.
210          * Otherwise, if taking control is not possible, we need to power
211          * everything down.
212          */
213         if (dcb->funcs->is_accelerated_mode(dcb) || dc->config.power_down_display_on_boot) {
214                 hws->funcs.init_pipes(dc, dc->current_state);
215                 if (dc->res_pool->hubbub->funcs->allow_self_refresh_control)
216                         dc->res_pool->hubbub->funcs->allow_self_refresh_control(dc->res_pool->hubbub,
217                                         !dc->res_pool->hubbub->ctx->dc->debug.disable_stutter);
218         }
219
220         /* In headless boot cases, DIG may be turned
221          * on which causes HW/SW discrepancies.
222          * To avoid this, power down hardware on boot
223          * if DIG is turned on and seamless boot not enabled
224          */
225         if (dc->config.power_down_display_on_boot) {
226                 struct dc_link *edp_links[MAX_NUM_EDP];
227                 struct dc_link *edp_link;
228
229                 get_edp_links(dc, edp_links, &edp_num);
230                 if (edp_num) {
231                         for (i = 0; i < edp_num; i++) {
232                                 edp_link = edp_links[i];
233                                 if (edp_link->link_enc->funcs->is_dig_enabled &&
234                                                 edp_link->link_enc->funcs->is_dig_enabled(edp_link->link_enc) &&
235                                                 dc->hwss.edp_backlight_control &&
236                                                 dc->hwss.power_down &&
237                                                 dc->hwss.edp_power_control) {
238                                         dc->hwss.edp_backlight_control(edp_link, false);
239                                         dc->hwss.power_down(dc);
240                                         dc->hwss.edp_power_control(edp_link, false);
241                                 }
242                         }
243                 } else {
244                         for (i = 0; i < dc->link_count; i++) {
245                                 struct dc_link *link = dc->links[i];
246
247                                 if (link->link_enc->funcs->is_dig_enabled &&
248                                                 link->link_enc->funcs->is_dig_enabled(link->link_enc) &&
249                                                 dc->hwss.power_down) {
250                                         dc->hwss.power_down(dc);
251                                         break;
252                                 }
253
254                         }
255                 }
256         }
257
258         for (i = 0; i < res_pool->audio_count; i++) {
259                 struct audio *audio = res_pool->audios[i];
260
261                 audio->funcs->hw_init(audio);
262         }
263
264         for (i = 0; i < dc->link_count; i++) {
265                 struct dc_link *link = dc->links[i];
266
267                 if (link->panel_cntl)
268                         backlight = link->panel_cntl->funcs->hw_init(link->panel_cntl);
269         }
270
271         for (i = 0; i < dc->res_pool->pipe_count; i++) {
272                 if (abms[i] != NULL)
273                         abms[i]->funcs->abm_init(abms[i], backlight);
274         }
275
276         /* power AFMT HDMI memory TODO: may move to dis/en output save power*/
277         REG_WRITE(DIO_MEM_PWR_CTRL, 0);
278
279         if (!dc->debug.disable_clock_gate) {
280                 /* enable all DCN clock gating */
281                 REG_WRITE(DCCG_GATE_DISABLE_CNTL, 0);
282
283                 REG_WRITE(DCCG_GATE_DISABLE_CNTL2, 0);
284
285                 REG_UPDATE(DCFCLK_CNTL, DCFCLK_GATE_DIS, 0);
286         }
287         if (hws->funcs.enable_power_gating_plane)
288                 hws->funcs.enable_power_gating_plane(dc->hwseq, true);
289
290         if (!dcb->funcs->is_accelerated_mode(dcb) && dc->res_pool->hubbub->funcs->init_watermarks)
291                 dc->res_pool->hubbub->funcs->init_watermarks(dc->res_pool->hubbub);
292
293         if (dc->clk_mgr->funcs->notify_wm_ranges)
294                 dc->clk_mgr->funcs->notify_wm_ranges(dc->clk_mgr);
295
296         if (dc->clk_mgr->funcs->set_hard_max_memclk)
297                 dc->clk_mgr->funcs->set_hard_max_memclk(dc->clk_mgr);
298
299         if (dc->res_pool->hubbub->funcs->force_pstate_change_control)
300                 dc->res_pool->hubbub->funcs->force_pstate_change_control(
301                                 dc->res_pool->hubbub, false, false);
302         if (dc->res_pool->hubbub->funcs->init_crb)
303                 dc->res_pool->hubbub->funcs->init_crb(dc->res_pool->hubbub);
304 }
305
306 void dcn31_dsc_pg_control(
307                 struct dce_hwseq *hws,
308                 unsigned int dsc_inst,
309                 bool power_on)
310 {
311         uint32_t power_gate = power_on ? 0 : 1;
312         uint32_t pwr_status = power_on ? 0 : 2;
313         uint32_t org_ip_request_cntl = 0;
314
315         if (hws->ctx->dc->debug.disable_dsc_power_gate)
316                 return;
317
318         REG_GET(DC_IP_REQUEST_CNTL, IP_REQUEST_EN, &org_ip_request_cntl);
319         if (org_ip_request_cntl == 0)
320                 REG_SET(DC_IP_REQUEST_CNTL, 0, IP_REQUEST_EN, 1);
321
322         switch (dsc_inst) {
323         case 0: /* DSC0 */
324                 REG_UPDATE(DOMAIN16_PG_CONFIG,
325                                 DOMAIN_POWER_GATE, power_gate);
326
327                 REG_WAIT(DOMAIN16_PG_STATUS,
328                                 DOMAIN_PGFSM_PWR_STATUS, pwr_status,
329                                 1, 1000);
330                 break;
331         case 1: /* DSC1 */
332                 REG_UPDATE(DOMAIN17_PG_CONFIG,
333                                 DOMAIN_POWER_GATE, power_gate);
334
335                 REG_WAIT(DOMAIN17_PG_STATUS,
336                                 DOMAIN_PGFSM_PWR_STATUS, pwr_status,
337                                 1, 1000);
338                 break;
339         case 2: /* DSC2 */
340                 REG_UPDATE(DOMAIN18_PG_CONFIG,
341                                 DOMAIN_POWER_GATE, power_gate);
342
343                 REG_WAIT(DOMAIN18_PG_STATUS,
344                                 DOMAIN_PGFSM_PWR_STATUS, pwr_status,
345                                 1, 1000);
346                 break;
347         default:
348                 BREAK_TO_DEBUGGER();
349                 break;
350         }
351
352         if (org_ip_request_cntl == 0)
353                 REG_SET(DC_IP_REQUEST_CNTL, 0, IP_REQUEST_EN, 0);
354 }
355
356
357 void dcn31_enable_power_gating_plane(
358         struct dce_hwseq *hws,
359         bool enable)
360 {
361         bool force_on = true; /* disable power gating */
362
363         if (enable)
364                 force_on = false;
365
366         /* DCHUBP0/1/2/3/4/5 */
367         REG_UPDATE(DOMAIN0_PG_CONFIG, DOMAIN_POWER_FORCEON, force_on);
368         REG_UPDATE(DOMAIN2_PG_CONFIG, DOMAIN_POWER_FORCEON, force_on);
369
370         /* DPP0/1/2/3/4/5 */
371         REG_UPDATE(DOMAIN1_PG_CONFIG, DOMAIN_POWER_FORCEON, force_on);
372         REG_UPDATE(DOMAIN3_PG_CONFIG, DOMAIN_POWER_FORCEON, force_on);
373
374         /* DCS0/1/2/3/4/5 */
375         REG_UPDATE(DOMAIN16_PG_CONFIG, DOMAIN_POWER_FORCEON, force_on);
376         REG_UPDATE(DOMAIN17_PG_CONFIG, DOMAIN_POWER_FORCEON, force_on);
377         REG_UPDATE(DOMAIN18_PG_CONFIG, DOMAIN_POWER_FORCEON, force_on);
378 }
379
380 void dcn31_update_info_frame(struct pipe_ctx *pipe_ctx)
381 {
382         bool is_hdmi_tmds;
383         bool is_dp;
384
385         ASSERT(pipe_ctx->stream);
386
387         if (pipe_ctx->stream_res.stream_enc == NULL)
388                 return;  /* this is not root pipe */
389
390         is_hdmi_tmds = dc_is_hdmi_tmds_signal(pipe_ctx->stream->signal);
391         is_dp = dc_is_dp_signal(pipe_ctx->stream->signal);
392
393         if (!is_hdmi_tmds)
394                 return;
395
396         if (is_hdmi_tmds)
397                 pipe_ctx->stream_res.stream_enc->funcs->update_hdmi_info_packets(
398                         pipe_ctx->stream_res.stream_enc,
399                         &pipe_ctx->stream_res.encoder_info_frame);
400         else {
401                 pipe_ctx->stream_res.stream_enc->funcs->update_dp_info_packets(
402                         pipe_ctx->stream_res.stream_enc,
403                         &pipe_ctx->stream_res.encoder_info_frame);
404         }
405 }
406
407 void dcn31_z10_restore(struct dc *dc)
408 {
409         union dmub_rb_cmd cmd;
410
411         /*
412          * DMUB notifies whether restore is required.
413          * Optimization to avoid sending commands when not required.
414          */
415         if (!dc_dmub_srv_is_restore_required(dc->ctx->dmub_srv))
416                 return;
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_RESTORE;
421
422         dc_dmub_srv_cmd_queue(dc->ctx->dmub_srv, &cmd);
423         dc_dmub_srv_cmd_execute(dc->ctx->dmub_srv);
424         dc_dmub_srv_wait_idle(dc->ctx->dmub_srv);
425 }
426
427 void dcn31_hubp_pg_control(struct dce_hwseq *hws, unsigned int hubp_inst, bool power_on)
428 {
429         uint32_t power_gate = power_on ? 0 : 1;
430         uint32_t pwr_status = power_on ? 0 : 2;
431
432         if (hws->ctx->dc->debug.disable_hubp_power_gate)
433                 return;
434
435         if (REG(DOMAIN0_PG_CONFIG) == 0)
436                 return;
437
438         switch (hubp_inst) {
439         case 0:
440                 REG_SET(DOMAIN0_PG_CONFIG, 0, DOMAIN_POWER_GATE, power_gate);
441                 REG_WAIT(DOMAIN0_PG_STATUS, DOMAIN_PGFSM_PWR_STATUS, pwr_status, 1, 1000);
442                 break;
443         case 1:
444                 REG_SET(DOMAIN1_PG_CONFIG, 0, DOMAIN_POWER_GATE, power_gate);
445                 REG_WAIT(DOMAIN1_PG_STATUS, DOMAIN_PGFSM_PWR_STATUS, pwr_status, 1, 1000);
446                 break;
447         case 2:
448                 REG_SET(DOMAIN2_PG_CONFIG, 0, DOMAIN_POWER_GATE, power_gate);
449                 REG_WAIT(DOMAIN2_PG_STATUS, DOMAIN_PGFSM_PWR_STATUS, pwr_status, 1, 1000);
450                 break;
451         case 3:
452                 REG_SET(DOMAIN3_PG_CONFIG, 0, DOMAIN_POWER_GATE, power_gate);
453                 REG_WAIT(DOMAIN3_PG_STATUS, DOMAIN_PGFSM_PWR_STATUS, pwr_status, 1, 1000);
454                 break;
455         default:
456                 BREAK_TO_DEBUGGER();
457                 break;
458         }
459 }
460
461 int dcn31_init_sys_ctx(struct dce_hwseq *hws, struct dc *dc, struct dc_phy_addr_space_config *pa_config)
462 {
463         struct dcn_hubbub_phys_addr_config config;
464
465         config.system_aperture.fb_top = pa_config->system_aperture.fb_top;
466         config.system_aperture.fb_offset = pa_config->system_aperture.fb_offset;
467         config.system_aperture.fb_base = pa_config->system_aperture.fb_base;
468         config.system_aperture.agp_top = pa_config->system_aperture.agp_top;
469         config.system_aperture.agp_bot = pa_config->system_aperture.agp_bot;
470         config.system_aperture.agp_base = pa_config->system_aperture.agp_base;
471         config.gart_config.page_table_start_addr = pa_config->gart_config.page_table_start_addr;
472         config.gart_config.page_table_end_addr = pa_config->gart_config.page_table_end_addr;
473
474         if (pa_config->gart_config.base_addr_is_mc_addr) {
475                 /* Convert from MC address to offset into FB */
476                 config.gart_config.page_table_base_addr = pa_config->gart_config.page_table_base_addr -
477                                 pa_config->system_aperture.fb_base +
478                                 pa_config->system_aperture.fb_offset;
479         } else
480                 config.gart_config.page_table_base_addr = pa_config->gart_config.page_table_base_addr;
481
482         return dc->res_pool->hubbub->funcs->init_dchub_sys_ctx(dc->res_pool->hubbub, &config);
483 }
484
485 static void dcn31_reset_back_end_for_pipe(
486                 struct dc *dc,
487                 struct pipe_ctx *pipe_ctx,
488                 struct dc_state *context)
489 {
490         struct dc_link *link;
491
492         DC_LOGGER_INIT(dc->ctx->logger);
493         if (pipe_ctx->stream_res.stream_enc == NULL) {
494                 pipe_ctx->stream = NULL;
495                 return;
496         }
497         ASSERT(!pipe_ctx->top_pipe);
498
499         dc->hwss.set_abm_immediate_disable(pipe_ctx);
500
501         pipe_ctx->stream_res.tg->funcs->set_dsc_config(
502                         pipe_ctx->stream_res.tg,
503                         OPTC_DSC_DISABLED, 0, 0);
504         pipe_ctx->stream_res.tg->funcs->disable_crtc(pipe_ctx->stream_res.tg);
505
506         pipe_ctx->stream_res.tg->funcs->enable_optc_clock(pipe_ctx->stream_res.tg, false);
507         if (pipe_ctx->stream_res.tg->funcs->set_odm_bypass)
508                 pipe_ctx->stream_res.tg->funcs->set_odm_bypass(
509                                 pipe_ctx->stream_res.tg, &pipe_ctx->stream->timing);
510
511         if (pipe_ctx->stream_res.tg->funcs->set_drr)
512                 pipe_ctx->stream_res.tg->funcs->set_drr(
513                                 pipe_ctx->stream_res.tg, NULL);
514
515         if (!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
516                 link = pipe_ctx->stream->link;
517                 /* DPMS may already disable or */
518                 /* dpms_off status is incorrect due to fastboot
519                  * feature. When system resume from S4 with second
520                  * screen only, the dpms_off would be true but
521                  * VBIOS lit up eDP, so check link status too.
522                  */
523                 if (!pipe_ctx->stream->dpms_off || link->link_status.link_active)
524                         core_link_disable_stream(pipe_ctx);
525                 else if (pipe_ctx->stream_res.audio)
526                         dc->hwss.disable_audio_stream(pipe_ctx);
527
528                 /* free acquired resources */
529                 if (pipe_ctx->stream_res.audio) {
530                         /*disable az_endpoint*/
531                         pipe_ctx->stream_res.audio->funcs->az_disable(pipe_ctx->stream_res.audio);
532
533                         /*free audio*/
534                         if (dc->caps.dynamic_audio == true) {
535                                 /*we have to dynamic arbitrate the audio endpoints*/
536                                 /*we free the resource, need reset is_audio_acquired*/
537                                 update_audio_usage(&dc->current_state->res_ctx, dc->res_pool,
538                                                 pipe_ctx->stream_res.audio, false);
539                                 pipe_ctx->stream_res.audio = NULL;
540                         }
541                 }
542         } else if (pipe_ctx->stream_res.dsc) {
543                         dp_set_dsc_enable(pipe_ctx, false);
544         }
545
546         pipe_ctx->stream = NULL;
547         DC_LOG_DEBUG("Reset back end for pipe %d, tg:%d\n",
548                                         pipe_ctx->pipe_idx, pipe_ctx->stream_res.tg->inst);
549 }
550
551 void dcn31_reset_hw_ctx_wrap(
552                 struct dc *dc,
553                 struct dc_state *context)
554 {
555         int i;
556         struct dce_hwseq *hws = dc->hwseq;
557
558         /* Reset Back End*/
559         for (i = dc->res_pool->pipe_count - 1; i >= 0 ; i--) {
560                 struct pipe_ctx *pipe_ctx_old =
561                         &dc->current_state->res_ctx.pipe_ctx[i];
562                 struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i];
563
564                 if (!pipe_ctx_old->stream)
565                         continue;
566
567                 if (pipe_ctx_old->top_pipe || pipe_ctx_old->prev_odm_pipe)
568                         continue;
569
570                 if (!pipe_ctx->stream ||
571                                 pipe_need_reprogram(pipe_ctx_old, pipe_ctx)) {
572                         struct clock_source *old_clk = pipe_ctx_old->clock_source;
573
574                         dcn31_reset_back_end_for_pipe(dc, pipe_ctx_old, dc->current_state);
575                         if (hws->funcs.enable_stream_gating)
576                                 hws->funcs.enable_stream_gating(dc, pipe_ctx);
577                         if (old_clk)
578                                 old_clk->funcs->cs_power_down(old_clk);
579                 }
580         }
581 }
582
583 bool dcn31_is_abm_supported(struct dc *dc,
584                 struct dc_state *context, struct dc_stream_state *stream)
585 {
586         int i;
587
588         for (i = 0; i < dc->res_pool->pipe_count; i++) {
589                 struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i];
590
591                 if (pipe_ctx->stream == stream &&
592                                 (pipe_ctx->prev_odm_pipe == NULL && pipe_ctx->next_odm_pipe == NULL))
593                         return true;
594         }
595         return false;
596 }