drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

   1 /*
   2  * Copyright 2015 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 /* The caprices of the preprocessor require that this be declared right here */
  27 #define CREATE_TRACE_POINTS
  28
  29 #include "dm_services_types.h"
  30 #include "dc.h"
  31 #include "link_enc_cfg.h"
  32 #include "dc/inc/core_types.h"
  33 #include "dal_asic_id.h"
  34 #include "dmub/dmub_srv.h"
  35 #include "dc/inc/hw/dmcu.h"
  36 #include "dc/inc/hw/abm.h"
  37 #include "dc/dc_dmub_srv.h"
  38 #include "dc/dc_edid_parser.h"
  39 #include "dc/dc_stat.h"
  40 #include "amdgpu_dm_trace.h"
  41 #include "dpcd_defs.h"
  42 #include "link/protocols/link_dpcd.h"
  43 #include "link_service_types.h"
  44
  45 #include "vid.h"
  46 #include "amdgpu.h"
  47 #include "amdgpu_display.h"
  48 #include "amdgpu_ucode.h"
  49 #include "atom.h"
  50 #include "amdgpu_dm.h"
  51 #include "amdgpu_dm_plane.h"
  52 #include "amdgpu_dm_crtc.h"
  53 #ifdef CONFIG_DRM_AMD_DC_HDCP
  54 #include "amdgpu_dm_hdcp.h"
  55 #include <drm/display/drm_hdcp_helper.h>
  56 #endif
  57 #include "amdgpu_pm.h"
  58 #include "amdgpu_atombios.h"
  59
  60 #include "amd_shared.h"
  61 #include "amdgpu_dm_irq.h"
  62 #include "dm_helpers.h"
  63 #include "amdgpu_dm_mst_types.h"
  64 #if defined(CONFIG_DEBUG_FS)
  65 #include "amdgpu_dm_debugfs.h"
  66 #endif
  67 #include "amdgpu_dm_psr.h"
  68
  69 #include "ivsrcid/ivsrcid_vislands30.h"
  70
  71 #include <linux/backlight.h>
  72 #include <linux/module.h>
  73 #include <linux/moduleparam.h>
  74 #include <linux/types.h>
  75 #include <linux/pm_runtime.h>
  76 #include <linux/pci.h>
  77 #include <linux/firmware.h>
  78 #include <linux/component.h>
  79 #include <linux/dmi.h>
  80
  81 #include <drm/display/drm_dp_mst_helper.h>
  82 #include <drm/display/drm_hdmi_helper.h>
  83 #include <drm/drm_atomic.h>
  84 #include <drm/drm_atomic_uapi.h>
  85 #include <drm/drm_atomic_helper.h>
  86 #include <drm/drm_blend.h>
  87 #include <drm/drm_fourcc.h>
  88 #include <drm/drm_edid.h>
  89 #include <drm/drm_vblank.h>
  90 #include <drm/drm_audio_component.h>
  91 #include <drm/drm_gem_atomic_helper.h>
  92 #include <drm/drm_plane_helper.h>
  93
  94 #include <acpi/video.h>
  95
  96 #include "ivsrcid/dcn/irqsrcs_dcn_1_0.h"
  97
  98 #include "dcn/dcn_1_0_offset.h"
  99 #include "dcn/dcn_1_0_sh_mask.h"
 100 #include "soc15_hw_ip.h"
 101 #include "soc15_common.h"
 102 #include "vega10_ip_offset.h"
 103
 104 #include "gc/gc_11_0_0_offset.h"
 105 #include "gc/gc_11_0_0_sh_mask.h"
 106
 107 #include "modules/inc/mod_freesync.h"
 108 #include "modules/power/power_helpers.h"
 109 #include "modules/inc/mod_info_packet.h"
 110
 111 #define FIRMWARE_RENOIR_DMUB "amdgpu/renoir_dmcub.bin"
 112 MODULE_FIRMWARE(FIRMWARE_RENOIR_DMUB);
 113 #define FIRMWARE_SIENNA_CICHLID_DMUB "amdgpu/sienna_cichlid_dmcub.bin"
 114 MODULE_FIRMWARE(FIRMWARE_SIENNA_CICHLID_DMUB);
 115 #define FIRMWARE_NAVY_FLOUNDER_DMUB "amdgpu/navy_flounder_dmcub.bin"
 116 MODULE_FIRMWARE(FIRMWARE_NAVY_FLOUNDER_DMUB);
 117 #define FIRMWARE_GREEN_SARDINE_DMUB "amdgpu/green_sardine_dmcub.bin"
 118 MODULE_FIRMWARE(FIRMWARE_GREEN_SARDINE_DMUB);
 119 #define FIRMWARE_VANGOGH_DMUB "amdgpu/vangogh_dmcub.bin"
 120 MODULE_FIRMWARE(FIRMWARE_VANGOGH_DMUB);
 121 #define FIRMWARE_DIMGREY_CAVEFISH_DMUB "amdgpu/dimgrey_cavefish_dmcub.bin"
 122 MODULE_FIRMWARE(FIRMWARE_DIMGREY_CAVEFISH_DMUB);
 123 #define FIRMWARE_BEIGE_GOBY_DMUB "amdgpu/beige_goby_dmcub.bin"
 124 MODULE_FIRMWARE(FIRMWARE_BEIGE_GOBY_DMUB);
 125 #define FIRMWARE_YELLOW_CARP_DMUB "amdgpu/yellow_carp_dmcub.bin"
 126 MODULE_FIRMWARE(FIRMWARE_YELLOW_CARP_DMUB);
 127 #define FIRMWARE_DCN_314_DMUB "amdgpu/dcn_3_1_4_dmcub.bin"
 128 MODULE_FIRMWARE(FIRMWARE_DCN_314_DMUB);
 129 #define FIRMWARE_DCN_315_DMUB "amdgpu/dcn_3_1_5_dmcub.bin"
 130 MODULE_FIRMWARE(FIRMWARE_DCN_315_DMUB);
 131 #define FIRMWARE_DCN316_DMUB "amdgpu/dcn_3_1_6_dmcub.bin"
 132 MODULE_FIRMWARE(FIRMWARE_DCN316_DMUB);
 133
 134 #define FIRMWARE_DCN_V3_2_0_DMCUB "amdgpu/dcn_3_2_0_dmcub.bin"
 135 MODULE_FIRMWARE(FIRMWARE_DCN_V3_2_0_DMCUB);
 136 #define FIRMWARE_DCN_V3_2_1_DMCUB "amdgpu/dcn_3_2_1_dmcub.bin"
 137 MODULE_FIRMWARE(FIRMWARE_DCN_V3_2_1_DMCUB);
 138
 139 #define FIRMWARE_RAVEN_DMCU             "amdgpu/raven_dmcu.bin"
 140 MODULE_FIRMWARE(FIRMWARE_RAVEN_DMCU);
 141
 142 #define FIRMWARE_NAVI12_DMCU            "amdgpu/navi12_dmcu.bin"
 143 MODULE_FIRMWARE(FIRMWARE_NAVI12_DMCU);
 144
 145 /* Number of bytes in PSP header for firmware. */
 146 #define PSP_HEADER_BYTES 0x100
 147
 148 /* Number of bytes in PSP footer for firmware. */
 149 #define PSP_FOOTER_BYTES 0x100
 150
 151 /**
 152  * DOC: overview
 153  *
 154  * The AMDgpu display manager, **amdgpu_dm** (or even simpler,
 155  * **dm**) sits between DRM and DC. It acts as a liaison, converting DRM
 156  * requests into DC requests, and DC responses into DRM responses.
 157  *
 158  * The root control structure is &struct amdgpu_display_manager.
 159  */
 160
 161 /* basic init/fini API */
 162 static int amdgpu_dm_init(struct amdgpu_device *adev);
 163 static void amdgpu_dm_fini(struct amdgpu_device *adev);
 164 static bool is_freesync_video_mode(const struct drm_display_mode *mode, struct amdgpu_dm_connector *aconnector);
 165
 166 static enum drm_mode_subconnector get_subconnector_type(struct dc_link *link)
 167 {
 168         switch (link->dpcd_caps.dongle_type) {
 169         case DISPLAY_DONGLE_NONE:
 170                 return DRM_MODE_SUBCONNECTOR_Native;
 171         case DISPLAY_DONGLE_DP_VGA_CONVERTER:
 172                 return DRM_MODE_SUBCONNECTOR_VGA;
 173         case DISPLAY_DONGLE_DP_DVI_CONVERTER:
 174         case DISPLAY_DONGLE_DP_DVI_DONGLE:
 175                 return DRM_MODE_SUBCONNECTOR_DVID;
 176         case DISPLAY_DONGLE_DP_HDMI_CONVERTER:
 177         case DISPLAY_DONGLE_DP_HDMI_DONGLE:
 178                 return DRM_MODE_SUBCONNECTOR_HDMIA;
 179         case DISPLAY_DONGLE_DP_HDMI_MISMATCHED_DONGLE:
 180         default:
 181                 return DRM_MODE_SUBCONNECTOR_Unknown;
 182         }
 183 }
 184
 185 static void update_subconnector_property(struct amdgpu_dm_connector *aconnector)
 186 {
 187         struct dc_link *link = aconnector->dc_link;
 188         struct drm_connector *connector = &aconnector->base;
 189         enum drm_mode_subconnector subconnector = DRM_MODE_SUBCONNECTOR_Unknown;
 190
 191         if (connector->connector_type != DRM_MODE_CONNECTOR_DisplayPort)
 192                 return;
 193
 194         if (aconnector->dc_sink)
 195                 subconnector = get_subconnector_type(link);
 196
 197         drm_object_property_set_value(&connector->base,
 198                         connector->dev->mode_config.dp_subconnector_property,
 199                         subconnector);
 200 }
 201
 202 /*
 203  * initializes drm_device display related structures, based on the information
 204  * provided by DAL. The drm strcutures are: drm_crtc, drm_connector,
 205  * drm_encoder, drm_mode_config
 206  *
 207  * Returns 0 on success
 208  */
 209 static int amdgpu_dm_initialize_drm_device(struct amdgpu_device *adev);
 210 /* removes and deallocates the drm structures, created by the above function */
 211 static void amdgpu_dm_destroy_drm_device(struct amdgpu_display_manager *dm);
 212
 213 static int amdgpu_dm_connector_init(struct amdgpu_display_manager *dm,
 214                                     struct amdgpu_dm_connector *amdgpu_dm_connector,
 215                                     u32 link_index,
 216                                     struct amdgpu_encoder *amdgpu_encoder);
 217 static int amdgpu_dm_encoder_init(struct drm_device *dev,
 218                                   struct amdgpu_encoder *aencoder,
 219                                   uint32_t link_index);
 220
 221 static int amdgpu_dm_connector_get_modes(struct drm_connector *connector);
 222
 223 static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state);
 224
 225 static int amdgpu_dm_atomic_check(struct drm_device *dev,
 226                                   struct drm_atomic_state *state);
 227
 228 static void handle_hpd_irq_helper(struct amdgpu_dm_connector *aconnector);
 229 static void handle_hpd_rx_irq(void *param);
 230
 231 static bool
 232 is_timing_unchanged_for_freesync(struct drm_crtc_state *old_crtc_state,
 233                                  struct drm_crtc_state *new_crtc_state);
 234 /*
 235  * dm_vblank_get_counter
 236  *
 237  * @brief
 238  * Get counter for number of vertical blanks
 239  *
 240  * @param
 241  * struct amdgpu_device *adev - [in] desired amdgpu device
 242  * int disp_idx - [in] which CRTC to get the counter from
 243  *
 244  * @return
 245  * Counter for vertical blanks
 246  */
 247 static u32 dm_vblank_get_counter(struct amdgpu_device *adev, int crtc)
 248 {
 249         if (crtc >= adev->mode_info.num_crtc)
 250                 return 0;
 251         else {
 252                 struct amdgpu_crtc *acrtc = adev->mode_info.crtcs[crtc];
 253
 254                 if (acrtc->dm_irq_params.stream == NULL) {
 255                         DRM_ERROR("dc_stream_state is NULL for crtc '%d'!\n",
 256                                   crtc);
 257                         return 0;
 258                 }
 259
 260                 return dc_stream_get_vblank_counter(acrtc->dm_irq_params.stream);
 261         }
 262 }
 263
 264 static int dm_crtc_get_scanoutpos(struct amdgpu_device *adev, int crtc,
 265                                   u32 *vbl, u32 *position)
 266 {
 267         u32 v_blank_start, v_blank_end, h_position, v_position;
 268
 269         if ((crtc < 0) || (crtc >= adev->mode_info.num_crtc))
 270                 return -EINVAL;
 271         else {
 272                 struct amdgpu_crtc *acrtc = adev->mode_info.crtcs[crtc];
 273
 274                 if (acrtc->dm_irq_params.stream ==  NULL) {
 275                         DRM_ERROR("dc_stream_state is NULL for crtc '%d'!\n",
 276                                   crtc);
 277                         return 0;
 278                 }
 279
 280                 /*
 281                  * TODO rework base driver to use values directly.
 282                  * for now parse it back into reg-format
 283                  */
 284                 dc_stream_get_scanoutpos(acrtc->dm_irq_params.stream,
 285                                          &v_blank_start,
 286                                          &v_blank_end,
 287                                          &h_position,
 288                                          &v_position);
 289
 290                 *position = v_position | (h_position << 16);
 291                 *vbl = v_blank_start | (v_blank_end << 16);
 292         }
 293
 294         return 0;
 295 }
 296
 297 static bool dm_is_idle(void *handle)
 298 {
 299         /* XXX todo */
 300         return true;
 301 }
 302
 303 static int dm_wait_for_idle(void *handle)
 304 {
 305         /* XXX todo */
 306         return 0;
 307 }
 308
 309 static bool dm_check_soft_reset(void *handle)
 310 {
 311         return false;
 312 }
 313
 314 static int dm_soft_reset(void *handle)
 315 {
 316         /* XXX todo */
 317         return 0;
 318 }
 319
 320 static struct amdgpu_crtc *
 321 get_crtc_by_otg_inst(struct amdgpu_device *adev,
 322                      int otg_inst)
 323 {
 324         struct drm_device *dev = adev_to_drm(adev);
 325         struct drm_crtc *crtc;
 326         struct amdgpu_crtc *amdgpu_crtc;
 327
 328         if (WARN_ON(otg_inst == -1))
 329                 return adev->mode_info.crtcs[0];
 330
 331         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 332                 amdgpu_crtc = to_amdgpu_crtc(crtc);
 333
 334                 if (amdgpu_crtc->otg_inst == otg_inst)
 335                         return amdgpu_crtc;
 336         }
 337
 338         return NULL;
 339 }
 340
 341 static inline bool is_dc_timing_adjust_needed(struct dm_crtc_state *old_state,
 342                                               struct dm_crtc_state *new_state)
 343 {
 344         if (new_state->freesync_config.state ==  VRR_STATE_ACTIVE_FIXED)
 345                 return true;
 346         else if (amdgpu_dm_vrr_active(old_state) != amdgpu_dm_vrr_active(new_state))
 347                 return true;
 348         else
 349                 return false;
 350 }
 351
 352 /**
 353  * dm_pflip_high_irq() - Handle pageflip interrupt
 354  * @interrupt_params: ignored
 355  *
 356  * Handles the pageflip interrupt by notifying all interested parties
 357  * that the pageflip has been completed.
 358  */
 359 static void dm_pflip_high_irq(void *interrupt_params)
 360 {
 361         struct amdgpu_crtc *amdgpu_crtc;
 362         struct common_irq_params *irq_params = interrupt_params;
 363         struct amdgpu_device *adev = irq_params->adev;
 364         unsigned long flags;
 365         struct drm_pending_vblank_event *e;
 366         u32 vpos, hpos, v_blank_start, v_blank_end;
 367         bool vrr_active;
 368
 369         amdgpu_crtc = get_crtc_by_otg_inst(adev, irq_params->irq_src - IRQ_TYPE_PFLIP);
 370
 371         /* IRQ could occur when in initial stage */
 372         /* TODO work and BO cleanup */
 373         if (amdgpu_crtc == NULL) {
 374                 DC_LOG_PFLIP("CRTC is null, returning.\n");
 375                 return;
 376         }
 377
 378         spin_lock_irqsave(&adev_to_drm(adev)->event_lock, flags);
 379
 380         if (amdgpu_crtc->pflip_status != AMDGPU_FLIP_SUBMITTED){
 381                 DC_LOG_PFLIP("amdgpu_crtc->pflip_status = %d !=AMDGPU_FLIP_SUBMITTED(%d) on crtc:%d[%p] \n",
 382                                                  amdgpu_crtc->pflip_status,
 383                                                  AMDGPU_FLIP_SUBMITTED,
 384                                                  amdgpu_crtc->crtc_id,
 385                                                  amdgpu_crtc);
 386                 spin_unlock_irqrestore(&adev_to_drm(adev)->event_lock, flags);
 387                 return;
 388         }
 389
 390         /* page flip completed. */
 391         e = amdgpu_crtc->event;
 392         amdgpu_crtc->event = NULL;
 393
 394         WARN_ON(!e);
 395
 396         vrr_active = amdgpu_dm_vrr_active_irq(amdgpu_crtc);
 397
 398         /* Fixed refresh rate, or VRR scanout position outside front-porch? */
 399         if (!vrr_active ||
 400             !dc_stream_get_scanoutpos(amdgpu_crtc->dm_irq_params.stream, &v_blank_start,
 401                                       &v_blank_end, &hpos, &vpos) ||
 402             (vpos < v_blank_start)) {
 403                 /* Update to correct count and vblank timestamp if racing with
 404                  * vblank irq. This also updates to the correct vblank timestamp
 405                  * even in VRR mode, as scanout is past the front-porch atm.
 406                  */
 407                 drm_crtc_accurate_vblank_count(&amdgpu_crtc->base);
 408
 409                 /* Wake up userspace by sending the pageflip event with proper
 410                  * count and timestamp of vblank of flip completion.
 411                  */
 412                 if (e) {
 413                         drm_crtc_send_vblank_event(&amdgpu_crtc->base, e);
 414
 415                         /* Event sent, so done with vblank for this flip */
 416                         drm_crtc_vblank_put(&amdgpu_crtc->base);
 417                 }
 418         } else if (e) {
 419                 /* VRR active and inside front-porch: vblank count and
 420                  * timestamp for pageflip event will only be up to date after
 421                  * drm_crtc_handle_vblank() has been executed from late vblank
 422                  * irq handler after start of back-porch (vline 0). We queue the
 423                  * pageflip event for send-out by drm_crtc_handle_vblank() with
 424                  * updated timestamp and count, once it runs after us.
 425                  *
 426                  * We need to open-code this instead of using the helper
 427                  * drm_crtc_arm_vblank_event(), as that helper would
 428                  * call drm_crtc_accurate_vblank_count(), which we must
 429                  * not call in VRR mode while we are in front-porch!
 430                  */
 431
 432                 /* sequence will be replaced by real count during send-out. */
 433                 e->sequence = drm_crtc_vblank_count(&amdgpu_crtc->base);
 434                 e->pipe = amdgpu_crtc->crtc_id;
 435
 436                 list_add_tail(&e->base.link, &adev_to_drm(adev)->vblank_event_list);
 437                 e = NULL;
 438         }
 439
 440         /* Keep track of vblank of this flip for flip throttling. We use the
 441          * cooked hw counter, as that one incremented at start of this vblank
 442          * of pageflip completion, so last_flip_vblank is the forbidden count
 443          * for queueing new pageflips if vsync + VRR is enabled.
 444          */
 445         amdgpu_crtc->dm_irq_params.last_flip_vblank =
 446                 amdgpu_get_vblank_counter_kms(&amdgpu_crtc->base);
 447
 448         amdgpu_crtc->pflip_status = AMDGPU_FLIP_NONE;
 449         spin_unlock_irqrestore(&adev_to_drm(adev)->event_lock, flags);
 450
 451         DC_LOG_PFLIP("crtc:%d[%p], pflip_stat:AMDGPU_FLIP_NONE, vrr[%d]-fp %d\n",
 452                      amdgpu_crtc->crtc_id, amdgpu_crtc,
 453                      vrr_active, (int) !e);
 454 }
 455
 456 static void dm_vupdate_high_irq(void *interrupt_params)
 457 {
 458         struct common_irq_params *irq_params = interrupt_params;
 459         struct amdgpu_device *adev = irq_params->adev;
 460         struct amdgpu_crtc *acrtc;
 461         struct drm_device *drm_dev;
 462         struct drm_vblank_crtc *vblank;
 463         ktime_t frame_duration_ns, previous_timestamp;
 464         unsigned long flags;
 465         int vrr_active;
 466
 467         acrtc = get_crtc_by_otg_inst(adev, irq_params->irq_src - IRQ_TYPE_VUPDATE);
 468
 469         if (acrtc) {
 470                 vrr_active = amdgpu_dm_vrr_active_irq(acrtc);
 471                 drm_dev = acrtc->base.dev;
 472                 vblank = &drm_dev->vblank[acrtc->base.index];
 473                 previous_timestamp = atomic64_read(&irq_params->previous_timestamp);
 474                 frame_duration_ns = vblank->time - previous_timestamp;
 475
 476                 if (frame_duration_ns > 0) {
 477                         trace_amdgpu_refresh_rate_track(acrtc->base.index,
 478                                                 frame_duration_ns,
 479                                                 ktime_divns(NSEC_PER_SEC, frame_duration_ns));
 480                         atomic64_set(&irq_params->previous_timestamp, vblank->time);
 481                 }
 482
 483                 DC_LOG_VBLANK("crtc:%d, vupdate-vrr:%d\n",
 484                               acrtc->crtc_id,
 485                               vrr_active);
 486
 487                 /* Core vblank handling is done here after end of front-porch in
 488                  * vrr mode, as vblank timestamping will give valid results
 489                  * while now done after front-porch. This will also deliver
 490                  * page-flip completion events that have been queued to us
 491                  * if a pageflip happened inside front-porch.
 492                  */
 493                 if (vrr_active) {
 494                         dm_crtc_handle_vblank(acrtc);
 495
 496                         /* BTR processing for pre-DCE12 ASICs */
 497                         if (acrtc->dm_irq_params.stream &&
 498                             adev->family < AMDGPU_FAMILY_AI) {
 499                                 spin_lock_irqsave(&adev_to_drm(adev)->event_lock, flags);
 500                                 mod_freesync_handle_v_update(
 501                                     adev->dm.freesync_module,
 502                                     acrtc->dm_irq_params.stream,
 503                                     &acrtc->dm_irq_params.vrr_params);
 504
 505                                 dc_stream_adjust_vmin_vmax(
 506                                     adev->dm.dc,
 507                                     acrtc->dm_irq_params.stream,
 508                                     &acrtc->dm_irq_params.vrr_params.adjust);
 509                                 spin_unlock_irqrestore(&adev_to_drm(adev)->event_lock, flags);
 510                         }
 511                 }
 512         }
 513 }
 514
 515 /**
 516  * dm_crtc_high_irq() - Handles CRTC interrupt
 517  * @interrupt_params: used for determining the CRTC instance
 518  *
 519  * Handles the CRTC/VSYNC interrupt by notfying DRM's VBLANK
 520  * event handler.
 521  */
 522 static void dm_crtc_high_irq(void *interrupt_params)
 523 {
 524         struct common_irq_params *irq_params = interrupt_params;
 525         struct amdgpu_device *adev = irq_params->adev;
 526         struct amdgpu_crtc *acrtc;
 527         unsigned long flags;
 528         int vrr_active;
 529
 530         acrtc = get_crtc_by_otg_inst(adev, irq_params->irq_src - IRQ_TYPE_VBLANK);
 531         if (!acrtc)
 532                 return;
 533
 534         vrr_active = amdgpu_dm_vrr_active_irq(acrtc);
 535
 536         DC_LOG_VBLANK("crtc:%d, vupdate-vrr:%d, planes:%d\n", acrtc->crtc_id,
 537                       vrr_active, acrtc->dm_irq_params.active_planes);
 538
 539         /**
 540          * Core vblank handling at start of front-porch is only possible
 541          * in non-vrr mode, as only there vblank timestamping will give
 542          * valid results while done in front-porch. Otherwise defer it
 543          * to dm_vupdate_high_irq after end of front-porch.
 544          */
 545         if (!vrr_active)
 546                 dm_crtc_handle_vblank(acrtc);
 547
 548         /**
 549          * Following stuff must happen at start of vblank, for crc
 550          * computation and below-the-range btr support in vrr mode.
 551          */
 552         amdgpu_dm_crtc_handle_crc_irq(&acrtc->base);
 553
 554         /* BTR updates need to happen before VUPDATE on Vega and above. */
 555         if (adev->family < AMDGPU_FAMILY_AI)
 556                 return;
 557
 558         spin_lock_irqsave(&adev_to_drm(adev)->event_lock, flags);
 559
 560         if (acrtc->dm_irq_params.stream &&
 561             acrtc->dm_irq_params.vrr_params.supported &&
 562             acrtc->dm_irq_params.freesync_config.state ==
 563                     VRR_STATE_ACTIVE_VARIABLE) {
 564                 mod_freesync_handle_v_update(adev->dm.freesync_module,
 565                                              acrtc->dm_irq_params.stream,
 566                                              &acrtc->dm_irq_params.vrr_params);
 567
 568                 dc_stream_adjust_vmin_vmax(adev->dm.dc, acrtc->dm_irq_params.stream,
 569                                            &acrtc->dm_irq_params.vrr_params.adjust);
 570         }
 571
 572         /*
 573          * If there aren't any active_planes then DCH HUBP may be clock-gated.
 574          * In that case, pageflip completion interrupts won't fire and pageflip
 575          * completion events won't get delivered. Prevent this by sending
 576          * pending pageflip events from here if a flip is still pending.
 577          *
 578          * If any planes are enabled, use dm_pflip_high_irq() instead, to
 579          * avoid race conditions between flip programming and completion,
 580          * which could cause too early flip completion events.
 581          */
 582         if (adev->family >= AMDGPU_FAMILY_RV &&
 583             acrtc->pflip_status == AMDGPU_FLIP_SUBMITTED &&
 584             acrtc->dm_irq_params.active_planes == 0) {
 585                 if (acrtc->event) {
 586                         drm_crtc_send_vblank_event(&acrtc->base, acrtc->event);
 587                         acrtc->event = NULL;
 588                         drm_crtc_vblank_put(&acrtc->base);
 589                 }
 590                 acrtc->pflip_status = AMDGPU_FLIP_NONE;
 591         }
 592
 593         spin_unlock_irqrestore(&adev_to_drm(adev)->event_lock, flags);
 594 }
 595
 596 #if defined(CONFIG_DRM_AMD_SECURE_DISPLAY)
 597 /**
 598  * dm_dcn_vertical_interrupt0_high_irq() - Handles OTG Vertical interrupt0 for
 599  * DCN generation ASICs
 600  * @interrupt_params: interrupt parameters
 601  *
 602  * Used to set crc window/read out crc value at vertical line 0 position
 603  */
 604 static void dm_dcn_vertical_interrupt0_high_irq(void *interrupt_params)
 605 {
 606         struct common_irq_params *irq_params = interrupt_params;
 607         struct amdgpu_device *adev = irq_params->adev;
 608         struct amdgpu_crtc *acrtc;
 609
 610         acrtc = get_crtc_by_otg_inst(adev, irq_params->irq_src - IRQ_TYPE_VLINE0);
 611
 612         if (!acrtc)
 613                 return;
 614
 615         amdgpu_dm_crtc_handle_crc_window_irq(&acrtc->base);
 616 }
 617 #endif /* CONFIG_DRM_AMD_SECURE_DISPLAY */
 618
 619 /**
 620  * dmub_aux_setconfig_callback - Callback for AUX or SET_CONFIG command.
 621  * @adev: amdgpu_device pointer
 622  * @notify: dmub notification structure
 623  *
 624  * Dmub AUX or SET_CONFIG command completion processing callback
 625  * Copies dmub notification to DM which is to be read by AUX command.
 626  * issuing thread and also signals the event to wake up the thread.
 627  */
 628 static void dmub_aux_setconfig_callback(struct amdgpu_device *adev,
 629                                         struct dmub_notification *notify)
 630 {
 631         if (adev->dm.dmub_notify)
 632                 memcpy(adev->dm.dmub_notify, notify, sizeof(struct dmub_notification));
 633         if (notify->type == DMUB_NOTIFICATION_AUX_REPLY)
 634                 complete(&adev->dm.dmub_aux_transfer_done);
 635 }
 636
 637 /**
 638  * dmub_hpd_callback - DMUB HPD interrupt processing callback.
 639  * @adev: amdgpu_device pointer
 640  * @notify: dmub notification structure
 641  *
 642  * Dmub Hpd interrupt processing callback. Gets displayindex through the
 643  * ink index and calls helper to do the processing.
 644  */
 645 static void dmub_hpd_callback(struct amdgpu_device *adev,
 646                               struct dmub_notification *notify)
 647 {
 648         struct amdgpu_dm_connector *aconnector;
 649         struct amdgpu_dm_connector *hpd_aconnector = NULL;
 650         struct drm_connector *connector;
 651         struct drm_connector_list_iter iter;
 652         struct dc_link *link;
 653         u8 link_index = 0;
 654         struct drm_device *dev;
 655
 656         if (adev == NULL)
 657                 return;
 658
 659         if (notify == NULL) {
 660                 DRM_ERROR("DMUB HPD callback notification was NULL");
 661                 return;
 662         }
 663
 664         if (notify->link_index > adev->dm.dc->link_count) {
 665                 DRM_ERROR("DMUB HPD index (%u)is abnormal", notify->link_index);
 666                 return;
 667         }
 668
 669         link_index = notify->link_index;
 670         link = adev->dm.dc->links[link_index];
 671         dev = adev->dm.ddev;
 672
 673         drm_connector_list_iter_begin(dev, &iter);
 674         drm_for_each_connector_iter(connector, &iter) {
 675                 aconnector = to_amdgpu_dm_connector(connector);
 676                 if (link && aconnector->dc_link == link) {
 677                         DRM_INFO("DMUB HPD callback: link_index=%u\n", link_index);
 678                         hpd_aconnector = aconnector;
 679                         break;
 680                 }
 681         }
 682         drm_connector_list_iter_end(&iter);
 683
 684         if (hpd_aconnector) {
 685                 if (notify->type == DMUB_NOTIFICATION_HPD)
 686                         handle_hpd_irq_helper(hpd_aconnector);
 687                 else if (notify->type == DMUB_NOTIFICATION_HPD_IRQ)
 688                         handle_hpd_rx_irq(hpd_aconnector);
 689         }
 690 }
 691
 692 /**
 693  * register_dmub_notify_callback - Sets callback for DMUB notify
 694  * @adev: amdgpu_device pointer
 695  * @type: Type of dmub notification
 696  * @callback: Dmub interrupt callback function
 697  * @dmub_int_thread_offload: offload indicator
 698  *
 699  * API to register a dmub callback handler for a dmub notification
 700  * Also sets indicator whether callback processing to be offloaded.
 701  * to dmub interrupt handling thread
 702  * Return: true if successfully registered, false if there is existing registration
 703  */
 704 static bool register_dmub_notify_callback(struct amdgpu_device *adev,
 705                                           enum dmub_notification_type type,
 706                                           dmub_notify_interrupt_callback_t callback,
 707                                           bool dmub_int_thread_offload)
 708 {
 709         if (callback != NULL && type < ARRAY_SIZE(adev->dm.dmub_thread_offload)) {
 710                 adev->dm.dmub_callback[type] = callback;
 711                 adev->dm.dmub_thread_offload[type] = dmub_int_thread_offload;
 712         } else
 713                 return false;
 714
 715         return true;
 716 }
 717
 718 static void dm_handle_hpd_work(struct work_struct *work)
 719 {
 720         struct dmub_hpd_work *dmub_hpd_wrk;
 721
 722         dmub_hpd_wrk = container_of(work, struct dmub_hpd_work, handle_hpd_work);
 723
 724         if (!dmub_hpd_wrk->dmub_notify) {
 725                 DRM_ERROR("dmub_hpd_wrk dmub_notify is NULL");
 726                 return;
 727         }
 728
 729         if (dmub_hpd_wrk->dmub_notify->type < ARRAY_SIZE(dmub_hpd_wrk->adev->dm.dmub_callback)) {
 730                 dmub_hpd_wrk->adev->dm.dmub_callback[dmub_hpd_wrk->dmub_notify->type](dmub_hpd_wrk->adev,
 731                 dmub_hpd_wrk->dmub_notify);
 732         }
 733
 734         kfree(dmub_hpd_wrk->dmub_notify);
 735         kfree(dmub_hpd_wrk);
 736
 737 }
 738
 739 #define DMUB_TRACE_MAX_READ 64
 740 /**
 741  * dm_dmub_outbox1_low_irq() - Handles Outbox interrupt
 742  * @interrupt_params: used for determining the Outbox instance
 743  *
 744  * Handles the Outbox Interrupt
 745  * event handler.
 746  */
 747 static void dm_dmub_outbox1_low_irq(void *interrupt_params)
 748 {
 749         struct dmub_notification notify;
 750         struct common_irq_params *irq_params = interrupt_params;
 751         struct amdgpu_device *adev = irq_params->adev;
 752         struct amdgpu_display_manager *dm = &adev->dm;
 753         struct dmcub_trace_buf_entry entry = { 0 };
 754         u32 count = 0;
 755         struct dmub_hpd_work *dmub_hpd_wrk;
 756         struct dc_link *plink = NULL;
 757
 758         if (dc_enable_dmub_notifications(adev->dm.dc) &&
 759                 irq_params->irq_src == DC_IRQ_SOURCE_DMCUB_OUTBOX) {
 760
 761                 do {
 762                         dc_stat_get_dmub_notification(adev->dm.dc, &notify);
 763                         if (notify.type >= ARRAY_SIZE(dm->dmub_thread_offload)) {
 764                                 DRM_ERROR("DM: notify type %d invalid!", notify.type);
 765                                 continue;
 766                         }
 767                         if (!dm->dmub_callback[notify.type]) {
 768                                 DRM_DEBUG_DRIVER("DMUB notification skipped, no handler: type=%d\n", notify.type);
 769                                 continue;
 770                         }
 771                         if (dm->dmub_thread_offload[notify.type] == true) {
 772                                 dmub_hpd_wrk = kzalloc(sizeof(*dmub_hpd_wrk), GFP_ATOMIC);
 773                                 if (!dmub_hpd_wrk) {
 774                                         DRM_ERROR("Failed to allocate dmub_hpd_wrk");
 775                                         return;
 776                                 }
 777                                 dmub_hpd_wrk->dmub_notify = kzalloc(sizeof(struct dmub_notification), GFP_ATOMIC);
 778                                 if (!dmub_hpd_wrk->dmub_notify) {
 779                                         kfree(dmub_hpd_wrk);
 780                                         DRM_ERROR("Failed to allocate dmub_hpd_wrk->dmub_notify");
 781                                         return;
 782                                 }
 783                                 INIT_WORK(&dmub_hpd_wrk->handle_hpd_work, dm_handle_hpd_work);
 784                                 if (dmub_hpd_wrk->dmub_notify)
 785                                         memcpy(dmub_hpd_wrk->dmub_notify, &notify, sizeof(struct dmub_notification));
 786                                 dmub_hpd_wrk->adev = adev;
 787                                 if (notify.type == DMUB_NOTIFICATION_HPD) {
 788                                         plink = adev->dm.dc->links[notify.link_index];
 789                                         if (plink) {
 790                                                 plink->hpd_status =
 791                                                         notify.hpd_status == DP_HPD_PLUG;
 792                                         }
 793                                 }
 794                                 queue_work(adev->dm.delayed_hpd_wq, &dmub_hpd_wrk->handle_hpd_work);
 795                         } else {
 796                                 dm->dmub_callback[notify.type](adev, &notify);
 797                         }
 798                 } while (notify.pending_notification);
 799         }
 800
 801
 802         do {
 803                 if (dc_dmub_srv_get_dmub_outbox0_msg(dm->dc, &entry)) {
 804                         trace_amdgpu_dmub_trace_high_irq(entry.trace_code, entry.tick_count,
 805                                                         entry.param0, entry.param1);
 806
 807                         DRM_DEBUG_DRIVER("trace_code:%u, tick_count:%u, param0:%u, param1:%u\n",
 808                                  entry.trace_code, entry.tick_count, entry.param0, entry.param1);
 809                 } else
 810                         break;
 811
 812                 count++;
 813
 814         } while (count <= DMUB_TRACE_MAX_READ);
 815
 816         if (count > DMUB_TRACE_MAX_READ)
 817                 DRM_DEBUG_DRIVER("Warning : count > DMUB_TRACE_MAX_READ");
 818 }
 819
 820 static int dm_set_clockgating_state(void *handle,
 821                   enum amd_clockgating_state state)
 822 {
 823         return 0;
 824 }
 825
 826 static int dm_set_powergating_state(void *handle,
 827                   enum amd_powergating_state state)
 828 {
 829         return 0;
 830 }
 831
 832 /* Prototypes of private functions */
 833 static int dm_early_init(void* handle);
 834
 835 /* Allocate memory for FBC compressed data  */
 836 static void amdgpu_dm_fbc_init(struct drm_connector *connector)
 837 {
 838         struct drm_device *dev = connector->dev;
 839         struct amdgpu_device *adev = drm_to_adev(dev);
 840         struct dm_compressor_info *compressor = &adev->dm.compressor;
 841         struct amdgpu_dm_connector *aconn = to_amdgpu_dm_connector(connector);
 842         struct drm_display_mode *mode;
 843         unsigned long max_size = 0;
 844
 845         if (adev->dm.dc->fbc_compressor == NULL)
 846                 return;
 847
 848         if (aconn->dc_link->connector_signal != SIGNAL_TYPE_EDP)
 849                 return;
 850
 851         if (compressor->bo_ptr)
 852                 return;
 853
 854
 855         list_for_each_entry(mode, &connector->modes, head) {
 856                 if (max_size < mode->htotal * mode->vtotal)
 857                         max_size = mode->htotal * mode->vtotal;
 858         }
 859
 860         if (max_size) {
 861                 int r = amdgpu_bo_create_kernel(adev, max_size * 4, PAGE_SIZE,
 862                             AMDGPU_GEM_DOMAIN_GTT, &compressor->bo_ptr,
 863                             &compressor->gpu_addr, &compressor->cpu_addr);
 864
 865                 if (r)
 866                         DRM_ERROR("DM: Failed to initialize FBC\n");
 867                 else {
 868                         adev->dm.dc->ctx->fbc_gpu_addr = compressor->gpu_addr;
 869                         DRM_INFO("DM: FBC alloc %lu\n", max_size*4);
 870                 }
 871
 872         }
 873
 874 }
 875
 876 static int amdgpu_dm_audio_component_get_eld(struct device *kdev, int port,
 877                                           int pipe, bool *enabled,
 878                                           unsigned char *buf, int max_bytes)
 879 {
 880         struct drm_device *dev = dev_get_drvdata(kdev);
 881         struct amdgpu_device *adev = drm_to_adev(dev);
 882         struct drm_connector *connector;
 883         struct drm_connector_list_iter conn_iter;
 884         struct amdgpu_dm_connector *aconnector;
 885         int ret = 0;
 886
 887         *enabled = false;
 888
 889         mutex_lock(&adev->dm.audio_lock);
 890
 891         drm_connector_list_iter_begin(dev, &conn_iter);
 892         drm_for_each_connector_iter(connector, &conn_iter) {
 893                 aconnector = to_amdgpu_dm_connector(connector);
 894                 if (aconnector->audio_inst != port)
 895                         continue;
 896
 897                 *enabled = true;
 898                 ret = drm_eld_size(connector->eld);
 899                 memcpy(buf, connector->eld, min(max_bytes, ret));
 900
 901                 break;
 902         }
 903         drm_connector_list_iter_end(&conn_iter);
 904
 905         mutex_unlock(&adev->dm.audio_lock);
 906
 907         DRM_DEBUG_KMS("Get ELD : idx=%d ret=%d en=%d\n", port, ret, *enabled);
 908
 909         return ret;
 910 }
 911
 912 static const struct drm_audio_component_ops amdgpu_dm_audio_component_ops = {
 913         .get_eld = amdgpu_dm_audio_component_get_eld,
 914 };
 915
 916 static int amdgpu_dm_audio_component_bind(struct device *kdev,
 917                                        struct device *hda_kdev, void *data)
 918 {
 919         struct drm_device *dev = dev_get_drvdata(kdev);
 920         struct amdgpu_device *adev = drm_to_adev(dev);
 921         struct drm_audio_component *acomp = data;
 922
 923         acomp->ops = &amdgpu_dm_audio_component_ops;
 924         acomp->dev = kdev;
 925         adev->dm.audio_component = acomp;
 926
 927         return 0;
 928 }
 929
 930 static void amdgpu_dm_audio_component_unbind(struct device *kdev,
 931                                           struct device *hda_kdev, void *data)
 932 {
 933         struct drm_device *dev = dev_get_drvdata(kdev);
 934         struct amdgpu_device *adev = drm_to_adev(dev);
 935         struct drm_audio_component *acomp = data;
 936
 937         acomp->ops = NULL;
 938         acomp->dev = NULL;
 939         adev->dm.audio_component = NULL;
 940 }
 941
 942 static const struct component_ops amdgpu_dm_audio_component_bind_ops = {
 943         .bind   = amdgpu_dm_audio_component_bind,
 944         .unbind = amdgpu_dm_audio_component_unbind,
 945 };
 946
 947 static int amdgpu_dm_audio_init(struct amdgpu_device *adev)
 948 {
 949         int i, ret;
 950
 951         if (!amdgpu_audio)
 952                 return 0;
 953
 954         adev->mode_info.audio.enabled = true;
 955
 956         adev->mode_info.audio.num_pins = adev->dm.dc->res_pool->audio_count;
 957
 958         for (i = 0; i < adev->mode_info.audio.num_pins; i++) {
 959                 adev->mode_info.audio.pin[i].channels = -1;
 960                 adev->mode_info.audio.pin[i].rate = -1;
 961                 adev->mode_info.audio.pin[i].bits_per_sample = -1;
 962                 adev->mode_info.audio.pin[i].status_bits = 0;
 963                 adev->mode_info.audio.pin[i].category_code = 0;
 964                 adev->mode_info.audio.pin[i].connected = false;
 965                 adev->mode_info.audio.pin[i].id =
 966                         adev->dm.dc->res_pool->audios[i]->inst;
 967                 adev->mode_info.audio.pin[i].offset = 0;
 968         }
 969
 970         ret = component_add(adev->dev, &amdgpu_dm_audio_component_bind_ops);
 971         if (ret < 0)
 972                 return ret;
 973
 974         adev->dm.audio_registered = true;
 975
 976         return 0;
 977 }
 978
 979 static void amdgpu_dm_audio_fini(struct amdgpu_device *adev)
 980 {
 981         if (!amdgpu_audio)
 982                 return;
 983
 984         if (!adev->mode_info.audio.enabled)
 985                 return;
 986
 987         if (adev->dm.audio_registered) {
 988                 component_del(adev->dev, &amdgpu_dm_audio_component_bind_ops);
 989                 adev->dm.audio_registered = false;
 990         }
 991
 992         /* TODO: Disable audio? */
 993
 994         adev->mode_info.audio.enabled = false;
 995 }
 996
 997 static  void amdgpu_dm_audio_eld_notify(struct amdgpu_device *adev, int pin)
 998 {
 999         struct drm_audio_component *acomp = adev->dm.audio_component;
1000
1001         if (acomp && acomp->audio_ops && acomp->audio_ops->pin_eld_notify) {
1002                 DRM_DEBUG_KMS("Notify ELD: %d\n", pin);
1003
1004                 acomp->audio_ops->pin_eld_notify(acomp->audio_ops->audio_ptr,
1005                                                  pin, -1);
1006         }
1007 }
1008
1009 static int dm_dmub_hw_init(struct amdgpu_device *adev)
1010 {
1011         const struct dmcub_firmware_header_v1_0 *hdr;
1012         struct dmub_srv *dmub_srv = adev->dm.dmub_srv;
1013         struct dmub_srv_fb_info *fb_info = adev->dm.dmub_fb_info;
1014         const struct firmware *dmub_fw = adev->dm.dmub_fw;
1015         struct dmcu *dmcu = adev->dm.dc->res_pool->dmcu;
1016         struct abm *abm = adev->dm.dc->res_pool->abm;
1017         struct dmub_srv_hw_params hw_params;
1018         enum dmub_status status;
1019         const unsigned char *fw_inst_const, *fw_bss_data;
1020         u32 i, fw_inst_const_size, fw_bss_data_size;
1021         bool has_hw_support;
1022
1023         if (!dmub_srv)
1024                 /* DMUB isn't supported on the ASIC. */
1025                 return 0;
1026
1027         if (!fb_info) {
1028                 DRM_ERROR("No framebuffer info for DMUB service.\n");
1029                 return -EINVAL;
1030         }
1031
1032         if (!dmub_fw) {
1033                 /* Firmware required for DMUB support. */
1034                 DRM_ERROR("No firmware provided for DMUB.\n");
1035                 return -EINVAL;
1036         }
1037
1038         status = dmub_srv_has_hw_support(dmub_srv, &has_hw_support);
1039         if (status != DMUB_STATUS_OK) {
1040                 DRM_ERROR("Error checking HW support for DMUB: %d\n", status);
1041                 return -EINVAL;
1042         }
1043
1044         if (!has_hw_support) {
1045                 DRM_INFO("DMUB unsupported on ASIC\n");
1046                 return 0;
1047         }
1048
1049         /* Reset DMCUB if it was previously running - before we overwrite its memory. */
1050         status = dmub_srv_hw_reset(dmub_srv);
1051         if (status != DMUB_STATUS_OK)
1052                 DRM_WARN("Error resetting DMUB HW: %d\n", status);
1053
1054         hdr = (const struct dmcub_firmware_header_v1_0 *)dmub_fw->data;
1055
1056         fw_inst_const = dmub_fw->data +
1057                         le32_to_cpu(hdr->header.ucode_array_offset_bytes) +
1058                         PSP_HEADER_BYTES;
1059
1060         fw_bss_data = dmub_fw->data +
1061                       le32_to_cpu(hdr->header.ucode_array_offset_bytes) +
1062                       le32_to_cpu(hdr->inst_const_bytes);
1063
1064         /* Copy firmware and bios info into FB memory. */
1065         fw_inst_const_size = le32_to_cpu(hdr->inst_const_bytes) -
1066                              PSP_HEADER_BYTES - PSP_FOOTER_BYTES;
1067
1068         fw_bss_data_size = le32_to_cpu(hdr->bss_data_bytes);
1069
1070         /* if adev->firmware.load_type == AMDGPU_FW_LOAD_PSP,
1071          * amdgpu_ucode_init_single_fw will load dmub firmware
1072          * fw_inst_const part to cw0; otherwise, the firmware back door load
1073          * will be done by dm_dmub_hw_init
1074          */
1075         if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP) {
1076                 memcpy(fb_info->fb[DMUB_WINDOW_0_INST_CONST].cpu_addr, fw_inst_const,
1077                                 fw_inst_const_size);
1078         }
1079
1080         if (fw_bss_data_size)
1081                 memcpy(fb_info->fb[DMUB_WINDOW_2_BSS_DATA].cpu_addr,
1082                        fw_bss_data, fw_bss_data_size);
1083
1084         /* Copy firmware bios info into FB memory. */
1085         memcpy(fb_info->fb[DMUB_WINDOW_3_VBIOS].cpu_addr, adev->bios,
1086                adev->bios_size);
1087
1088         /* Reset regions that need to be reset. */
1089         memset(fb_info->fb[DMUB_WINDOW_4_MAILBOX].cpu_addr, 0,
1090         fb_info->fb[DMUB_WINDOW_4_MAILBOX].size);
1091
1092         memset(fb_info->fb[DMUB_WINDOW_5_TRACEBUFF].cpu_addr, 0,
1093                fb_info->fb[DMUB_WINDOW_5_TRACEBUFF].size);
1094
1095         memset(fb_info->fb[DMUB_WINDOW_6_FW_STATE].cpu_addr, 0,
1096                fb_info->fb[DMUB_WINDOW_6_FW_STATE].size);
1097
1098         /* Initialize hardware. */
1099         memset(&hw_params, 0, sizeof(hw_params));
1100         hw_params.fb_base = adev->gmc.fb_start;
1101         hw_params.fb_offset = adev->vm_manager.vram_base_offset;
1102
1103         /* backdoor load firmware and trigger dmub running */
1104         if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP)
1105                 hw_params.load_inst_const = true;
1106
1107         if (dmcu)
1108                 hw_params.psp_version = dmcu->psp_version;
1109
1110         for (i = 0; i < fb_info->num_fb; ++i)
1111                 hw_params.fb[i] = &fb_info->fb[i];
1112
1113         switch (adev->ip_versions[DCE_HWIP][0]) {
1114         case IP_VERSION(3, 1, 3):
1115         case IP_VERSION(3, 1, 4):
1116                 hw_params.dpia_supported = true;
1117                 hw_params.disable_dpia = adev->dm.dc->debug.dpia_debug.bits.disable_dpia;
1118                 break;
1119         default:
1120                 break;
1121         }
1122
1123         status = dmub_srv_hw_init(dmub_srv, &hw_params);
1124         if (status != DMUB_STATUS_OK) {
1125                 DRM_ERROR("Error initializing DMUB HW: %d\n", status);
1126                 return -EINVAL;
1127         }
1128
1129         /* Wait for firmware load to finish. */
1130         status = dmub_srv_wait_for_auto_load(dmub_srv, 100000);
1131         if (status != DMUB_STATUS_OK)
1132                 DRM_WARN("Wait for DMUB auto-load failed: %d\n", status);
1133
1134         /* Init DMCU and ABM if available. */
1135         if (dmcu && abm) {
1136                 dmcu->funcs->dmcu_init(dmcu);
1137                 abm->dmcu_is_running = dmcu->funcs->is_dmcu_initialized(dmcu);
1138         }
1139
1140         if (!adev->dm.dc->ctx->dmub_srv)
1141                 adev->dm.dc->ctx->dmub_srv = dc_dmub_srv_create(adev->dm.dc, dmub_srv);
1142         if (!adev->dm.dc->ctx->dmub_srv) {
1143                 DRM_ERROR("Couldn't allocate DC DMUB server!\n");
1144                 return -ENOMEM;
1145         }
1146
1147         DRM_INFO("DMUB hardware initialized: version=0x%08X\n",
1148                  adev->dm.dmcub_fw_version);
1149
1150         return 0;
1151 }
1152
1153 static void dm_dmub_hw_resume(struct amdgpu_device *adev)
1154 {
1155         struct dmub_srv *dmub_srv = adev->dm.dmub_srv;
1156         enum dmub_status status;
1157         bool init;
1158
1159         if (!dmub_srv) {
1160                 /* DMUB isn't supported on the ASIC. */
1161                 return;
1162         }
1163
1164         status = dmub_srv_is_hw_init(dmub_srv, &init);
1165         if (status != DMUB_STATUS_OK)
1166                 DRM_WARN("DMUB hardware init check failed: %d\n", status);
1167
1168         if (status == DMUB_STATUS_OK && init) {
1169                 /* Wait for firmware load to finish. */
1170                 status = dmub_srv_wait_for_auto_load(dmub_srv, 100000);
1171                 if (status != DMUB_STATUS_OK)
1172                         DRM_WARN("Wait for DMUB auto-load failed: %d\n", status);
1173         } else {
1174                 /* Perform the full hardware initialization. */
1175                 dm_dmub_hw_init(adev);
1176         }
1177 }
1178
1179 static void mmhub_read_system_context(struct amdgpu_device *adev, struct dc_phy_addr_space_config *pa_config)
1180 {
1181         u64 pt_base;
1182         u32 logical_addr_low;
1183         u32 logical_addr_high;
1184         u32 agp_base, agp_bot, agp_top;
1185         PHYSICAL_ADDRESS_LOC page_table_start, page_table_end, page_table_base;
1186
1187         memset(pa_config, 0, sizeof(*pa_config));
1188
1189         logical_addr_low  = min(adev->gmc.fb_start, adev->gmc.agp_start) >> 18;
1190         pt_base = amdgpu_gmc_pd_addr(adev->gart.bo);
1191
1192         if (adev->apu_flags & AMD_APU_IS_RAVEN2)
1193                 /*
1194                  * Raven2 has a HW issue that it is unable to use the vram which
1195                  * is out of MC_VM_SYSTEM_APERTURE_HIGH_ADDR. So here is the
1196                  * workaround that increase system aperture high address (add 1)
1197                  * to get rid of the VM fault and hardware hang.
1198                  */
1199                 logical_addr_high = max((adev->gmc.fb_end >> 18) + 0x1, adev->gmc.agp_end >> 18);
1200         else
1201                 logical_addr_high = max(adev->gmc.fb_end, adev->gmc.agp_end) >> 18;
1202
1203         agp_base = 0;
1204         agp_bot = adev->gmc.agp_start >> 24;
1205         agp_top = adev->gmc.agp_end >> 24;
1206
1207
1208         page_table_start.high_part = (u32)(adev->gmc.gart_start >> 44) & 0xF;
1209         page_table_start.low_part = (u32)(adev->gmc.gart_start >> 12);
1210         page_table_end.high_part = (u32)(adev->gmc.gart_end >> 44) & 0xF;
1211         page_table_end.low_part = (u32)(adev->gmc.gart_end >> 12);
1212         page_table_base.high_part = upper_32_bits(pt_base) & 0xF;
1213         page_table_base.low_part = lower_32_bits(pt_base);
1214
1215         pa_config->system_aperture.start_addr = (uint64_t)logical_addr_low << 18;
1216         pa_config->system_aperture.end_addr = (uint64_t)logical_addr_high << 18;
1217
1218         pa_config->system_aperture.agp_base = (uint64_t)agp_base << 24 ;
1219         pa_config->system_aperture.agp_bot = (uint64_t)agp_bot << 24;
1220         pa_config->system_aperture.agp_top = (uint64_t)agp_top << 24;
1221
1222         pa_config->system_aperture.fb_base = adev->gmc.fb_start;
1223         pa_config->system_aperture.fb_offset = adev->vm_manager.vram_base_offset;
1224         pa_config->system_aperture.fb_top = adev->gmc.fb_end;
1225
1226         pa_config->gart_config.page_table_start_addr = page_table_start.quad_part << 12;
1227         pa_config->gart_config.page_table_end_addr = page_table_end.quad_part << 12;
1228         pa_config->gart_config.page_table_base_addr = page_table_base.quad_part;
1229
1230         pa_config->is_hvm_enabled = adev->mode_info.gpu_vm_support;
1231
1232 }
1233
1234 static void force_connector_state(
1235         struct amdgpu_dm_connector *aconnector,
1236         enum drm_connector_force force_state)
1237 {
1238         struct drm_connector *connector = &aconnector->base;
1239
1240         mutex_lock(&connector->dev->mode_config.mutex);
1241         aconnector->base.force = force_state;
1242         mutex_unlock(&connector->dev->mode_config.mutex);
1243
1244         mutex_lock(&aconnector->hpd_lock);
1245         drm_kms_helper_connector_hotplug_event(connector);
1246         mutex_unlock(&aconnector->hpd_lock);
1247 }
1248
1249 static void dm_handle_hpd_rx_offload_work(struct work_struct *work)
1250 {
1251         struct hpd_rx_irq_offload_work *offload_work;
1252         struct amdgpu_dm_connector *aconnector;
1253         struct dc_link *dc_link;
1254         struct amdgpu_device *adev;
1255         enum dc_connection_type new_connection_type = dc_connection_none;
1256         unsigned long flags;
1257         union test_response test_response;
1258
1259         memset(&test_response, 0, sizeof(test_response));
1260
1261         offload_work = container_of(work, struct hpd_rx_irq_offload_work, work);
1262         aconnector = offload_work->offload_wq->aconnector;
1263
1264         if (!aconnector) {
1265                 DRM_ERROR("Can't retrieve aconnector in hpd_rx_irq_offload_work");
1266                 goto skip;
1267         }
1268
1269         adev = drm_to_adev(aconnector->base.dev);
1270         dc_link = aconnector->dc_link;
1271
1272         mutex_lock(&aconnector->hpd_lock);
1273         if (!dc_link_detect_sink(dc_link, &new_connection_type))
1274                 DRM_ERROR("KMS: Failed to detect connector\n");
1275         mutex_unlock(&aconnector->hpd_lock);
1276
1277         if (new_connection_type == dc_connection_none)
1278                 goto skip;
1279
1280         if (amdgpu_in_reset(adev))
1281                 goto skip;
1282
1283         mutex_lock(&adev->dm.dc_lock);
1284         if (offload_work->data.bytes.device_service_irq.bits.AUTOMATED_TEST) {
1285                 dc_link_dp_handle_automated_test(dc_link);
1286
1287                 if (aconnector->timing_changed) {
1288                         /* force connector disconnect and reconnect */
1289                         force_connector_state(aconnector, DRM_FORCE_OFF);
1290                         msleep(100);
1291                         force_connector_state(aconnector, DRM_FORCE_UNSPECIFIED);
1292                 }
1293
1294                 test_response.bits.ACK = 1;
1295
1296                 core_link_write_dpcd(
1297                 dc_link,
1298                 DP_TEST_RESPONSE,
1299                 &test_response.raw,
1300                 sizeof(test_response));
1301         }
1302         else if ((dc_link->connector_signal != SIGNAL_TYPE_EDP) &&
1303                         dc_link_check_link_loss_status(dc_link, &offload_work->data) &&
1304                         dc_link_dp_allow_hpd_rx_irq(dc_link)) {
1305                 dc_link_dp_handle_link_loss(dc_link);
1306                 spin_lock_irqsave(&offload_work->offload_wq->offload_lock, flags);
1307                 offload_work->offload_wq->is_handling_link_loss = false;
1308                 spin_unlock_irqrestore(&offload_work->offload_wq->offload_lock, flags);
1309         }
1310         mutex_unlock(&adev->dm.dc_lock);
1311
1312 skip:
1313         kfree(offload_work);
1314
1315 }
1316
1317 static struct hpd_rx_irq_offload_work_queue *hpd_rx_irq_create_workqueue(struct dc *dc)
1318 {
1319         int max_caps = dc->caps.max_links;
1320         int i = 0;
1321         struct hpd_rx_irq_offload_work_queue *hpd_rx_offload_wq = NULL;
1322
1323         hpd_rx_offload_wq = kcalloc(max_caps, sizeof(*hpd_rx_offload_wq), GFP_KERNEL);
1324
1325         if (!hpd_rx_offload_wq)
1326                 return NULL;
1327
1328
1329         for (i = 0; i < max_caps; i++) {
1330                 hpd_rx_offload_wq[i].wq =
1331                                     create_singlethread_workqueue("amdgpu_dm_hpd_rx_offload_wq");
1332
1333                 if (hpd_rx_offload_wq[i].wq == NULL) {
1334                         DRM_ERROR("create amdgpu_dm_hpd_rx_offload_wq fail!");
1335                         goto out_err;
1336                 }
1337
1338                 spin_lock_init(&hpd_rx_offload_wq[i].offload_lock);
1339         }
1340
1341         return hpd_rx_offload_wq;
1342
1343 out_err:
1344         for (i = 0; i < max_caps; i++) {
1345                 if (hpd_rx_offload_wq[i].wq)
1346                         destroy_workqueue(hpd_rx_offload_wq[i].wq);
1347         }
1348         kfree(hpd_rx_offload_wq);
1349         return NULL;
1350 }
1351
1352 struct amdgpu_stutter_quirk {
1353         u16 chip_vendor;
1354         u16 chip_device;
1355         u16 subsys_vendor;
1356         u16 subsys_device;
1357         u8 revision;
1358 };
1359
1360 static const struct amdgpu_stutter_quirk amdgpu_stutter_quirk_list[] = {
1361         /* https://bugzilla.kernel.org/show_bug.cgi?id=214417 */
1362         { 0x1002, 0x15dd, 0x1002, 0x15dd, 0xc8 },
1363         { 0, 0, 0, 0, 0 },
1364 };
1365
1366 static bool dm_should_disable_stutter(struct pci_dev *pdev)
1367 {
1368         const struct amdgpu_stutter_quirk *p = amdgpu_stutter_quirk_list;
1369
1370         while (p && p->chip_device != 0) {
1371                 if (pdev->vendor == p->chip_vendor &&
1372                     pdev->device == p->chip_device &&
1373                     pdev->subsystem_vendor == p->subsys_vendor &&
1374                     pdev->subsystem_device == p->subsys_device &&
1375                     pdev->revision == p->revision) {
1376                         return true;
1377                 }
1378                 ++p;
1379         }
1380         return false;
1381 }
1382
1383 static const struct dmi_system_id hpd_disconnect_quirk_table[] = {
1384         {
1385                 .matches = {
1386                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
1387                         DMI_MATCH(DMI_PRODUCT_NAME, "Precision 3660"),
1388                 },
1389         },
1390         {
1391                 .matches = {
1392                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
1393                         DMI_MATCH(DMI_PRODUCT_NAME, "Precision 3260"),
1394                 },
1395         },
1396         {
1397                 .matches = {
1398                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
1399                         DMI_MATCH(DMI_PRODUCT_NAME, "Precision 3460"),
1400                 },
1401         },
1402         {
1403                 .matches = {
1404                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
1405                         DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex Tower Plus 7010"),
1406                 },
1407         },
1408         {
1409                 .matches = {
1410                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
1411                         DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex Tower 7010"),
1412                 },
1413         },
1414         {
1415                 .matches = {
1416                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
1417                         DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex SFF Plus 7010"),
1418                 },
1419         },
1420         {
1421                 .matches = {
1422                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
1423                         DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex SFF 7010"),
1424                 },
1425         },
1426         {
1427                 .matches = {
1428                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
1429                         DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex Micro Plus 7010"),
1430                 },
1431         },
1432         {
1433                 .matches = {
1434                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
1435                         DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex Micro 7010"),
1436                 },
1437         },
1438         {}
1439         /* TODO: refactor this from a fixed table to a dynamic option */
1440 };
1441
1442 static void retrieve_dmi_info(struct amdgpu_display_manager *dm)
1443 {
1444         const struct dmi_system_id *dmi_id;
1445
1446         dm->aux_hpd_discon_quirk = false;
1447
1448         dmi_id = dmi_first_match(hpd_disconnect_quirk_table);
1449         if (dmi_id) {
1450                 dm->aux_hpd_discon_quirk = true;
1451                 DRM_INFO("aux_hpd_discon_quirk attached\n");
1452         }
1453 }
1454
1455 static int amdgpu_dm_init(struct amdgpu_device *adev)
1456 {
1457         struct dc_init_data init_data;
1458 #ifdef CONFIG_DRM_AMD_DC_HDCP
1459         struct dc_callback_init init_params;
1460 #endif
1461         int r;
1462
1463         adev->dm.ddev = adev_to_drm(adev);
1464         adev->dm.adev = adev;
1465
1466         /* Zero all the fields */
1467         memset(&init_data, 0, sizeof(init_data));
1468 #ifdef CONFIG_DRM_AMD_DC_HDCP
1469         memset(&init_params, 0, sizeof(init_params));
1470 #endif
1471
1472         mutex_init(&adev->dm.dpia_aux_lock);
1473         mutex_init(&adev->dm.dc_lock);
1474         mutex_init(&adev->dm.audio_lock);
1475
1476         if(amdgpu_dm_irq_init(adev)) {
1477                 DRM_ERROR("amdgpu: failed to initialize DM IRQ support.\n");
1478                 goto error;
1479         }
1480
1481         init_data.asic_id.chip_family = adev->family;
1482
1483         init_data.asic_id.pci_revision_id = adev->pdev->revision;
1484         init_data.asic_id.hw_internal_rev = adev->external_rev_id;
1485         init_data.asic_id.chip_id = adev->pdev->device;
1486
1487         init_data.asic_id.vram_width = adev->gmc.vram_width;
1488         /* TODO: initialize init_data.asic_id.vram_type here!!!! */
1489         init_data.asic_id.atombios_base_address =
1490                 adev->mode_info.atom_context->bios;
1491
1492         init_data.driver = adev;
1493
1494         adev->dm.cgs_device = amdgpu_cgs_create_device(adev);
1495
1496         if (!adev->dm.cgs_device) {
1497                 DRM_ERROR("amdgpu: failed to create cgs device.\n");
1498                 goto error;
1499         }
1500
1501         init_data.cgs_device = adev->dm.cgs_device;
1502
1503         init_data.dce_environment = DCE_ENV_PRODUCTION_DRV;
1504
1505         switch (adev->ip_versions[DCE_HWIP][0]) {
1506         case IP_VERSION(2, 1, 0):
1507                 switch (adev->dm.dmcub_fw_version) {
1508                 case 0: /* development */
1509                 case 0x1: /* linux-firmware.git hash 6d9f399 */
1510                 case 0x01000000: /* linux-firmware.git hash 9a0b0f4 */
1511                         init_data.flags.disable_dmcu = false;
1512                         break;
1513                 default:
1514                         init_data.flags.disable_dmcu = true;
1515                 }
1516                 break;
1517         case IP_VERSION(2, 0, 3):
1518                 init_data.flags.disable_dmcu = true;
1519                 break;
1520         default:
1521                 break;
1522         }
1523
1524         switch (adev->asic_type) {
1525         case CHIP_CARRIZO:
1526         case CHIP_STONEY:
1527                 init_data.flags.gpu_vm_support = true;
1528                 break;
1529         default:
1530                 switch (adev->ip_versions[DCE_HWIP][0]) {
1531                 case IP_VERSION(1, 0, 0):
1532                 case IP_VERSION(1, 0, 1):
1533                         /* enable S/G on PCO and RV2 */
1534                         if ((adev->apu_flags & AMD_APU_IS_RAVEN2) ||
1535                             (adev->apu_flags & AMD_APU_IS_PICASSO))
1536                                 init_data.flags.gpu_vm_support = true;
1537                         break;
1538                 case IP_VERSION(2, 1, 0):
1539                 case IP_VERSION(3, 0, 1):
1540                 case IP_VERSION(3, 1, 2):
1541                 case IP_VERSION(3, 1, 3):
1542                 case IP_VERSION(3, 1, 6):
1543                         init_data.flags.gpu_vm_support = true;
1544                         break;
1545                 default:
1546                         break;
1547                 }
1548                 break;
1549         }
1550
1551         if (init_data.flags.gpu_vm_support)
1552                 adev->mode_info.gpu_vm_support = true;
1553
1554         if (amdgpu_dc_feature_mask & DC_FBC_MASK)
1555                 init_data.flags.fbc_support = true;
1556
1557         if (amdgpu_dc_feature_mask & DC_MULTI_MON_PP_MCLK_SWITCH_MASK)
1558                 init_data.flags.multi_mon_pp_mclk_switch = true;
1559
1560         if (amdgpu_dc_feature_mask & DC_DISABLE_FRACTIONAL_PWM_MASK)
1561                 init_data.flags.disable_fractional_pwm = true;
1562
1563         if (amdgpu_dc_feature_mask & DC_EDP_NO_POWER_SEQUENCING)
1564                 init_data.flags.edp_no_power_sequencing = true;
1565
1566         if (amdgpu_dc_feature_mask & DC_DISABLE_LTTPR_DP1_4A)
1567                 init_data.flags.allow_lttpr_non_transparent_mode.bits.DP1_4A = true;
1568         if (amdgpu_dc_feature_mask & DC_DISABLE_LTTPR_DP2_0)
1569                 init_data.flags.allow_lttpr_non_transparent_mode.bits.DP2_0 = true;
1570
1571         init_data.flags.seamless_boot_edp_requested = false;
1572
1573         if (check_seamless_boot_capability(adev)) {
1574                 init_data.flags.seamless_boot_edp_requested = true;
1575                 init_data.flags.allow_seamless_boot_optimization = true;
1576                 DRM_INFO("Seamless boot condition check passed\n");
1577         }
1578
1579         init_data.flags.enable_mipi_converter_optimization = true;
1580
1581         init_data.dcn_reg_offsets = adev->reg_offset[DCE_HWIP][0];
1582         init_data.nbio_reg_offsets = adev->reg_offset[NBIO_HWIP][0];
1583
1584         INIT_LIST_HEAD(&adev->dm.da_list);
1585
1586         retrieve_dmi_info(&adev->dm);
1587
1588         /* Display Core create. */
1589         adev->dm.dc = dc_create(&init_data);
1590
1591         if (adev->dm.dc) {
1592                 DRM_INFO("Display Core initialized with v%s!\n", DC_VER);
1593         } else {
1594                 DRM_INFO("Display Core failed to initialize with v%s!\n", DC_VER);
1595                 goto error;
1596         }
1597
1598         if (amdgpu_dc_debug_mask & DC_DISABLE_PIPE_SPLIT) {
1599                 adev->dm.dc->debug.force_single_disp_pipe_split = false;
1600                 adev->dm.dc->debug.pipe_split_policy = MPC_SPLIT_AVOID;
1601         }
1602
1603         if (adev->asic_type != CHIP_CARRIZO && adev->asic_type != CHIP_STONEY)
1604                 adev->dm.dc->debug.disable_stutter = amdgpu_pp_feature_mask & PP_STUTTER_MODE ? false : true;
1605         if (dm_should_disable_stutter(adev->pdev))
1606                 adev->dm.dc->debug.disable_stutter = true;
1607
1608         if (amdgpu_dc_debug_mask & DC_DISABLE_STUTTER)
1609                 adev->dm.dc->debug.disable_stutter = true;
1610
1611         if (amdgpu_dc_debug_mask & DC_DISABLE_DSC) {
1612                 adev->dm.dc->debug.disable_dsc = true;
1613         }
1614
1615         if (amdgpu_dc_debug_mask & DC_DISABLE_CLOCK_GATING)
1616                 adev->dm.dc->debug.disable_clock_gate = true;
1617
1618         if (amdgpu_dc_debug_mask & DC_FORCE_SUBVP_MCLK_SWITCH)
1619                 adev->dm.dc->debug.force_subvp_mclk_switch = true;
1620
1621         adev->dm.dc->debug.visual_confirm = amdgpu_dc_visual_confirm;
1622
1623         /* TODO: Remove after DP2 receiver gets proper support of Cable ID feature */
1624         adev->dm.dc->debug.ignore_cable_id = true;
1625
1626         r = dm_dmub_hw_init(adev);
1627         if (r) {
1628                 DRM_ERROR("DMUB interface failed to initialize: status=%d\n", r);
1629                 goto error;
1630         }
1631
1632         dc_hardware_init(adev->dm.dc);
1633
1634         adev->dm.hpd_rx_offload_wq = hpd_rx_irq_create_workqueue(adev->dm.dc);
1635         if (!adev->dm.hpd_rx_offload_wq) {
1636                 DRM_ERROR("amdgpu: failed to create hpd rx offload workqueue.\n");
1637                 goto error;
1638         }
1639
1640         if ((adev->flags & AMD_IS_APU) && (adev->asic_type >= CHIP_CARRIZO)) {
1641                 struct dc_phy_addr_space_config pa_config;
1642
1643                 mmhub_read_system_context(adev, &pa_config);
1644
1645                 // Call the DC init_memory func
1646                 dc_setup_system_context(adev->dm.dc, &pa_config);
1647         }
1648
1649         adev->dm.freesync_module = mod_freesync_create(adev->dm.dc);
1650         if (!adev->dm.freesync_module) {
1651                 DRM_ERROR(
1652                 "amdgpu: failed to initialize freesync_module.\n");
1653         } else
1654                 DRM_DEBUG_DRIVER("amdgpu: freesync_module init done %p.\n",
1655                                 adev->dm.freesync_module);
1656
1657         amdgpu_dm_init_color_mod();
1658
1659         if (adev->dm.dc->caps.max_links > 0) {
1660                 adev->dm.vblank_control_workqueue =
1661                         create_singlethread_workqueue("dm_vblank_control_workqueue");
1662                 if (!adev->dm.vblank_control_workqueue)
1663                         DRM_ERROR("amdgpu: failed to initialize vblank_workqueue.\n");
1664         }
1665
1666 #ifdef CONFIG_DRM_AMD_DC_HDCP
1667         if (adev->dm.dc->caps.max_links > 0 && adev->family >= AMDGPU_FAMILY_RV) {
1668                 adev->dm.hdcp_workqueue = hdcp_create_workqueue(adev, &init_params.cp_psp, adev->dm.dc);
1669
1670                 if (!adev->dm.hdcp_workqueue)
1671                         DRM_ERROR("amdgpu: failed to initialize hdcp_workqueue.\n");
1672                 else
1673                         DRM_DEBUG_DRIVER("amdgpu: hdcp_workqueue init done %p.\n", adev->dm.hdcp_workqueue);
1674
1675                 dc_init_callbacks(adev->dm.dc, &init_params);
1676         }
1677 #endif
1678 #if defined(CONFIG_DRM_AMD_SECURE_DISPLAY)
1679         adev->dm.secure_display_ctxs = amdgpu_dm_crtc_secure_display_create_contexts(adev);
1680         if (!adev->dm.secure_display_ctxs) {
1681                 DRM_ERROR("amdgpu: failed to initialize secure_display_ctxs.\n");
1682         }
1683 #endif
1684         if (dc_is_dmub_outbox_supported(adev->dm.dc)) {
1685                 init_completion(&adev->dm.dmub_aux_transfer_done);
1686                 adev->dm.dmub_notify = kzalloc(sizeof(struct dmub_notification), GFP_KERNEL);
1687                 if (!adev->dm.dmub_notify) {
1688                         DRM_INFO("amdgpu: fail to allocate adev->dm.dmub_notify");
1689                         goto error;
1690                 }
1691
1692                 adev->dm.delayed_hpd_wq = create_singlethread_workqueue("amdgpu_dm_hpd_wq");
1693                 if (!adev->dm.delayed_hpd_wq) {
1694                         DRM_ERROR("amdgpu: failed to create hpd offload workqueue.\n");
1695                         goto error;
1696                 }
1697
1698                 amdgpu_dm_outbox_init(adev);
1699                 if (!register_dmub_notify_callback(adev, DMUB_NOTIFICATION_AUX_REPLY,
1700                         dmub_aux_setconfig_callback, false)) {
1701                         DRM_ERROR("amdgpu: fail to register dmub aux callback");
1702                         goto error;
1703                 }
1704                 if (!register_dmub_notify_callback(adev, DMUB_NOTIFICATION_HPD, dmub_hpd_callback, true)) {
1705                         DRM_ERROR("amdgpu: fail to register dmub hpd callback");
1706                         goto error;
1707                 }
1708                 if (!register_dmub_notify_callback(adev, DMUB_NOTIFICATION_HPD_IRQ, dmub_hpd_callback, true)) {
1709                         DRM_ERROR("amdgpu: fail to register dmub hpd callback");
1710                         goto error;
1711                 }
1712         }
1713
1714         /* Enable outbox notification only after IRQ handlers are registered and DMUB is alive.
1715          * It is expected that DMUB will resend any pending notifications at this point, for
1716          * example HPD from DPIA.
1717          */
1718         if (dc_is_dmub_outbox_supported(adev->dm.dc))
1719                 dc_enable_dmub_outbox(adev->dm.dc);
1720
1721         if (amdgpu_dm_initialize_drm_device(adev)) {
1722                 DRM_ERROR(
1723                 "amdgpu: failed to initialize sw for display support.\n");
1724                 goto error;
1725         }
1726
1727         /* create fake encoders for MST */
1728         dm_dp_create_fake_mst_encoders(adev);
1729
1730         /* TODO: Add_display_info? */
1731
1732         /* TODO use dynamic cursor width */
1733         adev_to_drm(adev)->mode_config.cursor_width = adev->dm.dc->caps.max_cursor_size;
1734         adev_to_drm(adev)->mode_config.cursor_height = adev->dm.dc->caps.max_cursor_size;
1735
1736         if (drm_vblank_init(adev_to_drm(adev), adev->dm.display_indexes_num)) {
1737                 DRM_ERROR(
1738                 "amdgpu: failed to initialize sw for display support.\n");
1739                 goto error;
1740         }
1741
1742
1743         DRM_DEBUG_DRIVER("KMS initialized.\n");
1744
1745         return 0;
1746 error:
1747         amdgpu_dm_fini(adev);
1748
1749         return -EINVAL;
1750 }
1751
1752 static int amdgpu_dm_early_fini(void *handle)
1753 {
1754         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1755
1756         amdgpu_dm_audio_fini(adev);
1757
1758         return 0;
1759 }
1760
1761 static void amdgpu_dm_fini(struct amdgpu_device *adev)
1762 {
1763         int i;
1764
1765         if (adev->dm.vblank_control_workqueue) {
1766                 destroy_workqueue(adev->dm.vblank_control_workqueue);
1767                 adev->dm.vblank_control_workqueue = NULL;
1768         }
1769
1770         amdgpu_dm_destroy_drm_device(&adev->dm);
1771
1772 #if defined(CONFIG_DRM_AMD_SECURE_DISPLAY)
1773         if (adev->dm.secure_display_ctxs) {
1774                 for (i = 0; i < adev->mode_info.num_crtc; i++) {
1775                         if (adev->dm.secure_display_ctxs[i].crtc) {
1776                                 flush_work(&adev->dm.secure_display_ctxs[i].notify_ta_work);
1777                                 flush_work(&adev->dm.secure_display_ctxs[i].forward_roi_work);
1778                         }
1779                 }
1780                 kfree(adev->dm.secure_display_ctxs);
1781                 adev->dm.secure_display_ctxs = NULL;
1782         }
1783 #endif
1784 #ifdef CONFIG_DRM_AMD_DC_HDCP
1785         if (adev->dm.hdcp_workqueue) {
1786                 hdcp_destroy(&adev->dev->kobj, adev->dm.hdcp_workqueue);
1787                 adev->dm.hdcp_workqueue = NULL;
1788         }
1789
1790         if (adev->dm.dc)
1791                 dc_deinit_callbacks(adev->dm.dc);
1792 #endif
1793
1794         dc_dmub_srv_destroy(&adev->dm.dc->ctx->dmub_srv);
1795
1796         if (dc_enable_dmub_notifications(adev->dm.dc)) {
1797                 kfree(adev->dm.dmub_notify);
1798                 adev->dm.dmub_notify = NULL;
1799                 destroy_workqueue(adev->dm.delayed_hpd_wq);
1800                 adev->dm.delayed_hpd_wq = NULL;
1801         }
1802
1803         if (adev->dm.dmub_bo)
1804                 amdgpu_bo_free_kernel(&adev->dm.dmub_bo,
1805                                       &adev->dm.dmub_bo_gpu_addr,
1806                                       &adev->dm.dmub_bo_cpu_addr);
1807
1808         if (adev->dm.hpd_rx_offload_wq) {
1809                 for (i = 0; i < adev->dm.dc->caps.max_links; i++) {
1810                         if (adev->dm.hpd_rx_offload_wq[i].wq) {
1811                                 destroy_workqueue(adev->dm.hpd_rx_offload_wq[i].wq);
1812                                 adev->dm.hpd_rx_offload_wq[i].wq = NULL;
1813                         }
1814                 }
1815
1816                 kfree(adev->dm.hpd_rx_offload_wq);
1817                 adev->dm.hpd_rx_offload_wq = NULL;
1818         }
1819
1820         /* DC Destroy TODO: Replace destroy DAL */
1821         if (adev->dm.dc)
1822                 dc_destroy(&adev->dm.dc);
1823         /*
1824          * TODO: pageflip, vlank interrupt
1825          *
1826          * amdgpu_dm_irq_fini(adev);
1827          */
1828
1829         if (adev->dm.cgs_device) {
1830                 amdgpu_cgs_destroy_device(adev->dm.cgs_device);
1831                 adev->dm.cgs_device = NULL;
1832         }
1833         if (adev->dm.freesync_module) {
1834                 mod_freesync_destroy(adev->dm.freesync_module);
1835                 adev->dm.freesync_module = NULL;
1836         }
1837
1838         mutex_destroy(&adev->dm.audio_lock);
1839         mutex_destroy(&adev->dm.dc_lock);
1840         mutex_destroy(&adev->dm.dpia_aux_lock);
1841
1842         return;
1843 }
1844
1845 static int load_dmcu_fw(struct amdgpu_device *adev)
1846 {
1847         const char *fw_name_dmcu = NULL;
1848         int r;
1849         const struct dmcu_firmware_header_v1_0 *hdr;
1850
1851         switch(adev->asic_type) {
1852 #if defined(CONFIG_DRM_AMD_DC_SI)
1853         case CHIP_TAHITI:
1854         case CHIP_PITCAIRN:
1855         case CHIP_VERDE:
1856         case CHIP_OLAND:
1857 #endif
1858         case CHIP_BONAIRE:
1859         case CHIP_HAWAII:
1860         case CHIP_KAVERI:
1861         case CHIP_KABINI:
1862         case CHIP_MULLINS:
1863         case CHIP_TONGA:
1864         case CHIP_FIJI:
1865         case CHIP_CARRIZO:
1866         case CHIP_STONEY:
1867         case CHIP_POLARIS11:
1868         case CHIP_POLARIS10:
1869         case CHIP_POLARIS12:
1870         case CHIP_VEGAM:
1871         case CHIP_VEGA10:
1872         case CHIP_VEGA12:
1873         case CHIP_VEGA20:
1874                 return 0;
1875         case CHIP_NAVI12:
1876                 fw_name_dmcu = FIRMWARE_NAVI12_DMCU;
1877                 break;
1878         case CHIP_RAVEN:
1879                 if (ASICREV_IS_PICASSO(adev->external_rev_id))
1880                         fw_name_dmcu = FIRMWARE_RAVEN_DMCU;
1881                 else if (ASICREV_IS_RAVEN2(adev->external_rev_id))
1882                         fw_name_dmcu = FIRMWARE_RAVEN_DMCU;
1883                 else
1884                         return 0;
1885                 break;
1886         default:
1887                 switch (adev->ip_versions[DCE_HWIP][0]) {
1888                 case IP_VERSION(2, 0, 2):
1889                 case IP_VERSION(2, 0, 3):
1890                 case IP_VERSION(2, 0, 0):
1891                 case IP_VERSION(2, 1, 0):
1892                 case IP_VERSION(3, 0, 0):
1893                 case IP_VERSION(3, 0, 2):
1894                 case IP_VERSION(3, 0, 3):
1895                 case IP_VERSION(3, 0, 1):
1896                 case IP_VERSION(3, 1, 2):
1897                 case IP_VERSION(3, 1, 3):
1898                 case IP_VERSION(3, 1, 4):
1899                 case IP_VERSION(3, 1, 5):
1900                 case IP_VERSION(3, 1, 6):
1901                 case IP_VERSION(3, 2, 0):
1902                 case IP_VERSION(3, 2, 1):
1903                         return 0;
1904                 default:
1905                         break;
1906                 }
1907                 DRM_ERROR("Unsupported ASIC type: 0x%X\n", adev->asic_type);
1908                 return -EINVAL;
1909         }
1910
1911         if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP) {
1912                 DRM_DEBUG_KMS("dm: DMCU firmware not supported on direct or SMU loading\n");
1913                 return 0;
1914         }
1915
1916         r = amdgpu_ucode_request(adev, &adev->dm.fw_dmcu, fw_name_dmcu);
1917         if (r == -ENODEV) {
1918                 /* DMCU firmware is not necessary, so don't raise a fuss if it's missing */
1919                 DRM_DEBUG_KMS("dm: DMCU firmware not found\n");
1920                 adev->dm.fw_dmcu = NULL;
1921                 return 0;
1922         }
1923         if (r) {
1924                 dev_err(adev->dev, "amdgpu_dm: Can't validate firmware \"%s\"\n",
1925                         fw_name_dmcu);
1926                 amdgpu_ucode_release(&adev->dm.fw_dmcu);
1927                 return r;
1928         }
1929
1930         hdr = (const struct dmcu_firmware_header_v1_0 *)adev->dm.fw_dmcu->data;
1931         adev->firmware.ucode[AMDGPU_UCODE_ID_DMCU_ERAM].ucode_id = AMDGPU_UCODE_ID_DMCU_ERAM;
1932         adev->firmware.ucode[AMDGPU_UCODE_ID_DMCU_ERAM].fw = adev->dm.fw_dmcu;
1933         adev->firmware.fw_size +=
1934                 ALIGN(le32_to_cpu(hdr->header.ucode_size_bytes) - le32_to_cpu(hdr->intv_size_bytes), PAGE_SIZE);
1935
1936         adev->firmware.ucode[AMDGPU_UCODE_ID_DMCU_INTV].ucode_id = AMDGPU_UCODE_ID_DMCU_INTV;
1937         adev->firmware.ucode[AMDGPU_UCODE_ID_DMCU_INTV].fw = adev->dm.fw_dmcu;
1938         adev->firmware.fw_size +=
1939                 ALIGN(le32_to_cpu(hdr->intv_size_bytes), PAGE_SIZE);
1940
1941         adev->dm.dmcu_fw_version = le32_to_cpu(hdr->header.ucode_version);
1942
1943         DRM_DEBUG_KMS("PSP loading DMCU firmware\n");
1944
1945         return 0;
1946 }
1947
1948 static uint32_t amdgpu_dm_dmub_reg_read(void *ctx, uint32_t address)
1949 {
1950         struct amdgpu_device *adev = ctx;
1951
1952         return dm_read_reg(adev->dm.dc->ctx, address);
1953 }
1954
1955 static void amdgpu_dm_dmub_reg_write(void *ctx, uint32_t address,
1956                                      uint32_t value)
1957 {
1958         struct amdgpu_device *adev = ctx;
1959
1960         return dm_write_reg(adev->dm.dc->ctx, address, value);
1961 }
1962
1963 static int dm_dmub_sw_init(struct amdgpu_device *adev)
1964 {
1965         struct dmub_srv_create_params create_params;
1966         struct dmub_srv_region_params region_params;
1967         struct dmub_srv_region_info region_info;
1968         struct dmub_srv_fb_params fb_params;
1969         struct dmub_srv_fb_info *fb_info;
1970         struct dmub_srv *dmub_srv;
1971         const struct dmcub_firmware_header_v1_0 *hdr;
1972         enum dmub_asic dmub_asic;
1973         enum dmub_status status;
1974         int r;
1975
1976         switch (adev->ip_versions[DCE_HWIP][0]) {
1977         case IP_VERSION(2, 1, 0):
1978                 dmub_asic = DMUB_ASIC_DCN21;
1979                 break;
1980         case IP_VERSION(3, 0, 0):
1981                 dmub_asic = DMUB_ASIC_DCN30;
1982                 break;
1983         case IP_VERSION(3, 0, 1):
1984                 dmub_asic = DMUB_ASIC_DCN301;
1985                 break;
1986         case IP_VERSION(3, 0, 2):
1987                 dmub_asic = DMUB_ASIC_DCN302;
1988                 break;
1989         case IP_VERSION(3, 0, 3):
1990                 dmub_asic = DMUB_ASIC_DCN303;
1991                 break;
1992         case IP_VERSION(3, 1, 2):
1993         case IP_VERSION(3, 1, 3):
1994                 dmub_asic = (adev->external_rev_id == YELLOW_CARP_B0) ? DMUB_ASIC_DCN31B : DMUB_ASIC_DCN31;
1995                 break;
1996         case IP_VERSION(3, 1, 4):
1997                 dmub_asic = DMUB_ASIC_DCN314;
1998                 break;
1999         case IP_VERSION(3, 1, 5):
2000                 dmub_asic = DMUB_ASIC_DCN315;
2001                 break;
2002         case IP_VERSION(3, 1, 6):
2003                 dmub_asic = DMUB_ASIC_DCN316;
2004                 break;
2005         case IP_VERSION(3, 2, 0):
2006                 dmub_asic = DMUB_ASIC_DCN32;
2007                 break;
2008         case IP_VERSION(3, 2, 1):
2009                 dmub_asic = DMUB_ASIC_DCN321;
2010                 break;
2011         default:
2012                 /* ASIC doesn't support DMUB. */
2013                 return 0;
2014         }
2015
2016         hdr = (const struct dmcub_firmware_header_v1_0 *)adev->dm.dmub_fw->data;
2017         adev->dm.dmcub_fw_version = le32_to_cpu(hdr->header.ucode_version);
2018
2019         if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
2020                 adev->firmware.ucode[AMDGPU_UCODE_ID_DMCUB].ucode_id =
2021                         AMDGPU_UCODE_ID_DMCUB;
2022                 adev->firmware.ucode[AMDGPU_UCODE_ID_DMCUB].fw =
2023                         adev->dm.dmub_fw;
2024                 adev->firmware.fw_size +=
2025                         ALIGN(le32_to_cpu(hdr->inst_const_bytes), PAGE_SIZE);
2026
2027                 DRM_INFO("Loading DMUB firmware via PSP: version=0x%08X\n",
2028                          adev->dm.dmcub_fw_version);
2029         }
2030
2031
2032         adev->dm.dmub_srv = kzalloc(sizeof(*adev->dm.dmub_srv), GFP_KERNEL);
2033         dmub_srv = adev->dm.dmub_srv;
2034
2035         if (!dmub_srv) {
2036                 DRM_ERROR("Failed to allocate DMUB service!\n");
2037                 return -ENOMEM;
2038         }
2039
2040         memset(&create_params, 0, sizeof(create_params));
2041         create_params.user_ctx = adev;
2042         create_params.funcs.reg_read = amdgpu_dm_dmub_reg_read;
2043         create_params.funcs.reg_write = amdgpu_dm_dmub_reg_write;
2044         create_params.asic = dmub_asic;
2045
2046         /* Create the DMUB service. */
2047         status = dmub_srv_create(dmub_srv, &create_params);
2048         if (status != DMUB_STATUS_OK) {
2049                 DRM_ERROR("Error creating DMUB service: %d\n", status);
2050                 return -EINVAL;
2051         }
2052
2053         /* Calculate the size of all the regions for the DMUB service. */
2054         memset(&region_params, 0, sizeof(region_params));
2055
2056         region_params.inst_const_size = le32_to_cpu(hdr->inst_const_bytes) -
2057                                         PSP_HEADER_BYTES - PSP_FOOTER_BYTES;
2058         region_params.bss_data_size = le32_to_cpu(hdr->bss_data_bytes);
2059         region_params.vbios_size = adev->bios_size;
2060         region_params.fw_bss_data = region_params.bss_data_size ?
2061                 adev->dm.dmub_fw->data +
2062                 le32_to_cpu(hdr->header.ucode_array_offset_bytes) +
2063                 le32_to_cpu(hdr->inst_const_bytes) : NULL;
2064         region_params.fw_inst_const =
2065                 adev->dm.dmub_fw->data +
2066                 le32_to_cpu(hdr->header.ucode_array_offset_bytes) +
2067                 PSP_HEADER_BYTES;
2068
2069         status = dmub_srv_calc_region_info(dmub_srv, &region_params,
2070                                            &region_info);
2071
2072         if (status != DMUB_STATUS_OK) {
2073                 DRM_ERROR("Error calculating DMUB region info: %d\n", status);
2074                 return -EINVAL;
2075         }
2076
2077         /*
2078          * Allocate a framebuffer based on the total size of all the regions.
2079          * TODO: Move this into GART.
2080          */
2081         r = amdgpu_bo_create_kernel(adev, region_info.fb_size, PAGE_SIZE,
2082                                     AMDGPU_GEM_DOMAIN_VRAM |
2083                                     AMDGPU_GEM_DOMAIN_GTT,
2084                                     &adev->dm.dmub_bo,
2085                                     &adev->dm.dmub_bo_gpu_addr,
2086                                     &adev->dm.dmub_bo_cpu_addr);
2087         if (r)
2088                 return r;
2089
2090         /* Rebase the regions on the framebuffer address. */
2091         memset(&fb_params, 0, sizeof(fb_params));
2092         fb_params.cpu_addr = adev->dm.dmub_bo_cpu_addr;
2093         fb_params.gpu_addr = adev->dm.dmub_bo_gpu_addr;
2094         fb_params.region_info = &region_info;
2095
2096         adev->dm.dmub_fb_info =
2097                 kzalloc(sizeof(*adev->dm.dmub_fb_info), GFP_KERNEL);
2098         fb_info = adev->dm.dmub_fb_info;
2099
2100         if (!fb_info) {
2101                 DRM_ERROR(
2102                         "Failed to allocate framebuffer info for DMUB service!\n");
2103                 return -ENOMEM;
2104         }
2105
2106         status = dmub_srv_calc_fb_info(dmub_srv, &fb_params, fb_info);
2107         if (status != DMUB_STATUS_OK) {
2108                 DRM_ERROR("Error calculating DMUB FB info: %d\n", status);
2109                 return -EINVAL;
2110         }
2111
2112         return 0;
2113 }
2114
2115 static int dm_sw_init(void *handle)
2116 {
2117         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
2118         int r;
2119
2120         r = dm_dmub_sw_init(adev);
2121         if (r)
2122                 return r;
2123
2124         return load_dmcu_fw(adev);
2125 }
2126
2127 static int dm_sw_fini(void *handle)
2128 {
2129         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
2130
2131         kfree(adev->dm.dmub_fb_info);
2132         adev->dm.dmub_fb_info = NULL;
2133
2134         if (adev->dm.dmub_srv) {
2135                 dmub_srv_destroy(adev->dm.dmub_srv);
2136                 adev->dm.dmub_srv = NULL;
2137         }
2138
2139         amdgpu_ucode_release(&adev->dm.dmub_fw);
2140         amdgpu_ucode_release(&adev->dm.fw_dmcu);
2141
2142         return 0;
2143 }
2144
2145 static int detect_mst_link_for_all_connectors(struct drm_device *dev)
2146 {
2147         struct amdgpu_dm_connector *aconnector;
2148         struct drm_connector *connector;
2149         struct drm_connector_list_iter iter;
2150         int ret = 0;
2151
2152         drm_connector_list_iter_begin(dev, &iter);
2153         drm_for_each_connector_iter(connector, &iter) {
2154                 aconnector = to_amdgpu_dm_connector(connector);
2155                 if (aconnector->dc_link->type == dc_connection_mst_branch &&
2156                     aconnector->mst_mgr.aux) {
2157                         DRM_DEBUG_DRIVER("DM_MST: starting TM on aconnector: %p [id: %d]\n",
2158                                          aconnector,
2159                                          aconnector->base.base.id);
2160
2161                         ret = drm_dp_mst_topology_mgr_set_mst(&aconnector->mst_mgr, true);
2162                         if (ret < 0) {
2163                                 DRM_ERROR("DM_MST: Failed to start MST\n");
2164                                 aconnector->dc_link->type =
2165                                         dc_connection_single;
2166                                 ret = dm_helpers_dp_mst_stop_top_mgr(aconnector->dc_link->ctx,
2167                                                                      aconnector->dc_link);
2168                                 break;
2169                         }
2170                 }
2171         }
2172         drm_connector_list_iter_end(&iter);
2173
2174         return ret;
2175 }
2176
2177 static int dm_late_init(void *handle)
2178 {
2179         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
2180
2181         struct dmcu_iram_parameters params;
2182         unsigned int linear_lut[16];
2183         int i;
2184         struct dmcu *dmcu = NULL;
2185
2186         dmcu = adev->dm.dc->res_pool->dmcu;
2187
2188         for (i = 0; i < 16; i++)
2189                 linear_lut[i] = 0xFFFF * i / 15;
2190
2191         params.set = 0;
2192         params.backlight_ramping_override = false;
2193         params.backlight_ramping_start = 0xCCCC;
2194         params.backlight_ramping_reduction = 0xCCCCCCCC;
2195         params.backlight_lut_array_size = 16;
2196         params.backlight_lut_array = linear_lut;
2197
2198         /* Min backlight level after ABM reduction,  Don't allow below 1%
2199          * 0xFFFF x 0.01 = 0x28F
2200          */
2201         params.min_abm_backlight = 0x28F;
2202         /* In the case where abm is implemented on dmcub,
2203         * dmcu object will be null.
2204         * ABM 2.4 and up are implemented on dmcub.
2205         */
2206         if (dmcu) {
2207                 if (!dmcu_load_iram(dmcu, params))
2208                         return -EINVAL;
2209         } else if (adev->dm.dc->ctx->dmub_srv) {
2210                 struct dc_link *edp_links[MAX_NUM_EDP];
2211                 int edp_num;
2212
2213                 get_edp_links(adev->dm.dc, edp_links, &edp_num);
2214                 for (i = 0; i < edp_num; i++) {
2215                         if (!dmub_init_abm_config(adev->dm.dc->res_pool, params, i))
2216                                 return -EINVAL;
2217                 }
2218         }
2219
2220         return detect_mst_link_for_all_connectors(adev_to_drm(adev));
2221 }
2222
2223 static void s3_handle_mst(struct drm_device *dev, bool suspend)
2224 {
2225         struct amdgpu_dm_connector *aconnector;
2226         struct drm_connector *connector;
2227         struct drm_connector_list_iter iter;
2228         struct drm_dp_mst_topology_mgr *mgr;
2229         int ret;
2230         bool need_hotplug = false;
2231
2232         drm_connector_list_iter_begin(dev, &iter);
2233         drm_for_each_connector_iter(connector, &iter) {
2234                 aconnector = to_amdgpu_dm_connector(connector);
2235                 if (aconnector->dc_link->type != dc_connection_mst_branch ||
2236                     aconnector->mst_root)
2237                         continue;
2238
2239                 mgr = &aconnector->mst_mgr;
2240
2241                 if (suspend) {
2242                         drm_dp_mst_topology_mgr_suspend(mgr);
2243                 } else {
2244                         ret = drm_dp_mst_topology_mgr_resume(mgr, true);
2245                         if (ret < 0) {
2246                                 dm_helpers_dp_mst_stop_top_mgr(aconnector->dc_link->ctx,
2247                                         aconnector->dc_link);
2248                                 need_hotplug = true;
2249                         }
2250                 }
2251         }
2252         drm_connector_list_iter_end(&iter);
2253
2254         if (need_hotplug)
2255                 drm_kms_helper_hotplug_event(dev);
2256 }
2257
2258 static int amdgpu_dm_smu_write_watermarks_table(struct amdgpu_device *adev)
2259 {
2260         int ret = 0;
2261
2262         /* This interface is for dGPU Navi1x.Linux dc-pplib interface depends
2263          * on window driver dc implementation.
2264          * For Navi1x, clock settings of dcn watermarks are fixed. the settings
2265          * should be passed to smu during boot up and resume from s3.
2266          * boot up: dc calculate dcn watermark clock settings within dc_create,
2267          * dcn20_resource_construct
2268          * then call pplib functions below to pass the settings to smu:
2269          * smu_set_watermarks_for_clock_ranges
2270          * smu_set_watermarks_table
2271          * navi10_set_watermarks_table
2272          * smu_write_watermarks_table
2273          *
2274          * For Renoir, clock settings of dcn watermark are also fixed values.
2275          * dc has implemented different flow for window driver:
2276          * dc_hardware_init / dc_set_power_state
2277          * dcn10_init_hw
2278          * notify_wm_ranges
2279          * set_wm_ranges
2280          * -- Linux
2281          * smu_set_watermarks_for_clock_ranges
2282          * renoir_set_watermarks_table
2283          * smu_write_watermarks_table
2284          *
2285          * For Linux,
2286          * dc_hardware_init -> amdgpu_dm_init
2287          * dc_set_power_state --> dm_resume
2288          *
2289          * therefore, this function apply to navi10/12/14 but not Renoir
2290          * *
2291          */
2292         switch (adev->ip_versions[DCE_HWIP][0]) {
2293         case IP_VERSION(2, 0, 2):
2294         case IP_VERSION(2, 0, 0):
2295                 break;
2296         default:
2297                 return 0;
2298         }
2299
2300         ret = amdgpu_dpm_write_watermarks_table(adev);
2301         if (ret) {
2302                 DRM_ERROR("Failed to update WMTABLE!\n");
2303                 return ret;
2304         }
2305
2306         return 0;
2307 }
2308
2309 /**
2310  * dm_hw_init() - Initialize DC device
2311  * @handle: The base driver device containing the amdgpu_dm device.
2312  *
2313  * Initialize the &struct amdgpu_display_manager device. This involves calling
2314  * the initializers of each DM component, then populating the struct with them.
2315  *
2316  * Although the function implies hardware initialization, both hardware and
2317  * software are initialized here. Splitting them out to their relevant init
2318  * hooks is a future TODO item.
2319  *
2320  * Some notable things that are initialized here:
2321  *
2322  * - Display Core, both software and hardware
2323  * - DC modules that we need (freesync and color management)
2324  * - DRM software states
2325  * - Interrupt sources and handlers
2326  * - Vblank support
2327  * - Debug FS entries, if enabled
2328  */
2329 static int dm_hw_init(void *handle)
2330 {
2331         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
2332         /* Create DAL display manager */
2333         amdgpu_dm_init(adev);
2334         amdgpu_dm_hpd_init(adev);
2335
2336         return 0;
2337 }
2338
2339 /**
2340  * dm_hw_fini() - Teardown DC device
2341  * @handle: The base driver device containing the amdgpu_dm device.
2342  *
2343  * Teardown components within &struct amdgpu_display_manager that require
2344  * cleanup. This involves cleaning up the DRM device, DC, and any modules that
2345  * were loaded. Also flush IRQ workqueues and disable them.
2346  */
2347 static int dm_hw_fini(void *handle)
2348 {
2349         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
2350
2351         amdgpu_dm_hpd_fini(adev);
2352
2353         amdgpu_dm_irq_fini(adev);
2354         amdgpu_dm_fini(adev);
2355         return 0;
2356 }
2357
2358
2359 static void dm_gpureset_toggle_interrupts(struct amdgpu_device *adev,
2360                                  struct dc_state *state, bool enable)
2361 {
2362         enum dc_irq_source irq_source;
2363         struct amdgpu_crtc *acrtc;
2364         int rc = -EBUSY;
2365         int i = 0;
2366
2367         for (i = 0; i < state->stream_count; i++) {
2368                 acrtc = get_crtc_by_otg_inst(
2369                                 adev, state->stream_status[i].primary_otg_inst);
2370
2371                 if (acrtc && state->stream_status[i].plane_count != 0) {
2372                         irq_source = IRQ_TYPE_PFLIP + acrtc->otg_inst;
2373                         rc = dc_interrupt_set(adev->dm.dc, irq_source, enable) ? 0 : -EBUSY;
2374                         DRM_DEBUG_VBL("crtc %d - vupdate irq %sabling: r=%d\n",
2375                                       acrtc->crtc_id, enable ? "en" : "dis", rc);
2376                         if (rc)
2377                                 DRM_WARN("Failed to %s pflip interrupts\n",
2378                                          enable ? "enable" : "disable");
2379
2380                         if (enable) {
2381                                 rc = dm_enable_vblank(&acrtc->base);
2382                                 if (rc)
2383                                         DRM_WARN("Failed to enable vblank interrupts\n");
2384                         } else {
2385                                 dm_disable_vblank(&acrtc->base);
2386                         }
2387
2388                 }
2389         }
2390
2391 }
2392
2393 static enum dc_status amdgpu_dm_commit_zero_streams(struct dc *dc)
2394 {
2395         struct dc_state *context = NULL;
2396         enum dc_status res = DC_ERROR_UNEXPECTED;
2397         int i;
2398         struct dc_stream_state *del_streams[MAX_PIPES];
2399         int del_streams_count = 0;
2400
2401         memset(del_streams, 0, sizeof(del_streams));
2402
2403         context = dc_create_state(dc);
2404         if (context == NULL)
2405                 goto context_alloc_fail;
2406
2407         dc_resource_state_copy_construct_current(dc, context);
2408
2409         /* First remove from context all streams */
2410         for (i = 0; i < context->stream_count; i++) {
2411                 struct dc_stream_state *stream = context->streams[i];
2412
2413                 del_streams[del_streams_count++] = stream;
2414         }
2415
2416         /* Remove all planes for removed streams and then remove the streams */
2417         for (i = 0; i < del_streams_count; i++) {
2418                 if (!dc_rem_all_planes_for_stream(dc, del_streams[i], context)) {
2419                         res = DC_FAIL_DETACH_SURFACES;
2420                         goto fail;
2421                 }
2422
2423                 res = dc_remove_stream_from_ctx(dc, context, del_streams[i]);
2424                 if (res != DC_OK)
2425                         goto fail;
2426         }
2427
2428         res = dc_commit_state(dc, context);
2429
2430 fail:
2431         dc_release_state(context);
2432
2433 context_alloc_fail:
2434         return res;
2435 }
2436
2437 static void hpd_rx_irq_work_suspend(struct amdgpu_display_manager *dm)
2438 {
2439         int i;
2440
2441         if (dm->hpd_rx_offload_wq) {
2442                 for (i = 0; i < dm->dc->caps.max_links; i++)
2443                         flush_workqueue(dm->hpd_rx_offload_wq[i].wq);
2444         }
2445 }
2446
2447 static int dm_suspend(void *handle)
2448 {
2449         struct amdgpu_device *adev = handle;
2450         struct amdgpu_display_manager *dm = &adev->dm;
2451         int ret = 0;
2452
2453         if (amdgpu_in_reset(adev)) {
2454                 mutex_lock(&dm->dc_lock);
2455
2456                 dc_allow_idle_optimizations(adev->dm.dc, false);
2457
2458                 dm->cached_dc_state = dc_copy_state(dm->dc->current_state);
2459
2460                 dm_gpureset_toggle_interrupts(adev, dm->cached_dc_state, false);
2461
2462                 amdgpu_dm_commit_zero_streams(dm->dc);
2463
2464                 amdgpu_dm_irq_suspend(adev);
2465
2466                 hpd_rx_irq_work_suspend(dm);
2467
2468                 return ret;
2469         }
2470
2471         WARN_ON(adev->dm.cached_state);
2472         adev->dm.cached_state = drm_atomic_helper_suspend(adev_to_drm(adev));
2473
2474         s3_handle_mst(adev_to_drm(adev), true);
2475
2476         amdgpu_dm_irq_suspend(adev);
2477
2478         hpd_rx_irq_work_suspend(dm);
2479
2480         dc_set_power_state(dm->dc, DC_ACPI_CM_POWER_STATE_D3);
2481
2482         return 0;
2483 }
2484
2485 struct amdgpu_dm_connector *
2486 amdgpu_dm_find_first_crtc_matching_connector(struct drm_atomic_state *state,
2487                                              struct drm_crtc *crtc)
2488 {
2489         u32 i;
2490         struct drm_connector_state *new_con_state;
2491         struct drm_connector *connector;
2492         struct drm_crtc *crtc_from_state;
2493
2494         for_each_new_connector_in_state(state, connector, new_con_state, i) {
2495                 crtc_from_state = new_con_state->crtc;
2496
2497                 if (crtc_from_state == crtc)
2498                         return to_amdgpu_dm_connector(connector);
2499         }
2500
2501         return NULL;
2502 }
2503
2504 static void emulated_link_detect(struct dc_link *link)
2505 {
2506         struct dc_sink_init_data sink_init_data = { 0 };
2507         struct display_sink_capability sink_caps = { 0 };
2508         enum dc_edid_status edid_status;
2509         struct dc_context *dc_ctx = link->ctx;
2510         struct dc_sink *sink = NULL;
2511         struct dc_sink *prev_sink = NULL;
2512
2513         link->type = dc_connection_none;
2514         prev_sink = link->local_sink;
2515
2516         if (prev_sink)
2517                 dc_sink_release(prev_sink);
2518
2519         switch (link->connector_signal) {
2520         case SIGNAL_TYPE_HDMI_TYPE_A: {
2521                 sink_caps.transaction_type = DDC_TRANSACTION_TYPE_I2C;
2522                 sink_caps.signal = SIGNAL_TYPE_HDMI_TYPE_A;
2523                 break;
2524         }
2525
2526         case SIGNAL_TYPE_DVI_SINGLE_LINK: {
2527                 sink_caps.transaction_type = DDC_TRANSACTION_TYPE_I2C;
2528                 sink_caps.signal = SIGNAL_TYPE_DVI_SINGLE_LINK;
2529                 break;
2530         }
2531
2532         case SIGNAL_TYPE_DVI_DUAL_LINK: {
2533                 sink_caps.transaction_type = DDC_TRANSACTION_TYPE_I2C;
2534                 sink_caps.signal = SIGNAL_TYPE_DVI_DUAL_LINK;
2535                 break;
2536         }
2537
2538         case SIGNAL_TYPE_LVDS: {
2539                 sink_caps.transaction_type = DDC_TRANSACTION_TYPE_I2C;
2540                 sink_caps.signal = SIGNAL_TYPE_LVDS;
2541                 break;
2542         }
2543
2544         case SIGNAL_TYPE_EDP: {
2545                 sink_caps.transaction_type =
2546                         DDC_TRANSACTION_TYPE_I2C_OVER_AUX;
2547                 sink_caps.signal = SIGNAL_TYPE_EDP;
2548                 break;
2549         }
2550
2551         case SIGNAL_TYPE_DISPLAY_PORT: {
2552                 sink_caps.transaction_type =
2553                         DDC_TRANSACTION_TYPE_I2C_OVER_AUX;
2554                 sink_caps.signal = SIGNAL_TYPE_VIRTUAL;
2555                 break;
2556         }
2557
2558         default:
2559                 DC_ERROR("Invalid connector type! signal:%d\n",
2560                         link->connector_signal);
2561                 return;
2562         }
2563
2564         sink_init_data.link = link;
2565         sink_init_data.sink_signal = sink_caps.signal;
2566
2567         sink = dc_sink_create(&sink_init_data);
2568         if (!sink) {
2569                 DC_ERROR("Failed to create sink!\n");
2570                 return;
2571         }
2572
2573         /* dc_sink_create returns a new reference */
2574         link->local_sink = sink;
2575
2576         edid_status = dm_helpers_read_local_edid(
2577                         link->ctx,
2578                         link,
2579                         sink);
2580
2581         if (edid_status != EDID_OK)
2582                 DC_ERROR("Failed to read EDID");
2583
2584 }
2585
2586 static void dm_gpureset_commit_state(struct dc_state *dc_state,
2587                                      struct amdgpu_display_manager *dm)
2588 {
2589         struct {
2590                 struct dc_surface_update surface_updates[MAX_SURFACES];
2591                 struct dc_plane_info plane_infos[MAX_SURFACES];
2592                 struct dc_scaling_info scaling_infos[MAX_SURFACES];
2593                 struct dc_flip_addrs flip_addrs[MAX_SURFACES];
2594                 struct dc_stream_update stream_update;
2595         } * bundle;
2596         int k, m;
2597
2598         bundle = kzalloc(sizeof(*bundle), GFP_KERNEL);
2599
2600         if (!bundle) {
2601                 dm_error("Failed to allocate update bundle\n");
2602                 goto cleanup;
2603         }
2604
2605         for (k = 0; k < dc_state->stream_count; k++) {
2606                 bundle->stream_update.stream = dc_state->streams[k];
2607
2608                 for (m = 0; m < dc_state->stream_status->plane_count; m++) {
2609                         bundle->surface_updates[m].surface =
2610                                 dc_state->stream_status->plane_states[m];
2611                         bundle->surface_updates[m].surface->force_full_update =
2612                                 true;
2613                 }
2614                 dc_commit_updates_for_stream(
2615                         dm->dc, bundle->surface_updates,
2616                         dc_state->stream_status->plane_count,
2617                         dc_state->streams[k], &bundle->stream_update, dc_state);
2618         }
2619
2620 cleanup:
2621         kfree(bundle);
2622
2623         return;
2624 }
2625
2626 static int dm_resume(void *handle)
2627 {
2628         struct amdgpu_device *adev = handle;
2629         struct drm_device *ddev = adev_to_drm(adev);
2630         struct amdgpu_display_manager *dm = &adev->dm;
2631         struct amdgpu_dm_connector *aconnector;
2632         struct drm_connector *connector;
2633         struct drm_connector_list_iter iter;
2634         struct drm_crtc *crtc;
2635         struct drm_crtc_state *new_crtc_state;
2636         struct dm_crtc_state *dm_new_crtc_state;
2637         struct drm_plane *plane;
2638         struct drm_plane_state *new_plane_state;
2639         struct dm_plane_state *dm_new_plane_state;
2640         struct dm_atomic_state *dm_state = to_dm_atomic_state(dm->atomic_obj.state);
2641         enum dc_connection_type new_connection_type = dc_connection_none;
2642         struct dc_state *dc_state;
2643         int i, r, j;
2644
2645         if (amdgpu_in_reset(adev)) {
2646                 dc_state = dm->cached_dc_state;
2647
2648                 /*
2649                  * The dc->current_state is backed up into dm->cached_dc_state
2650                  * before we commit 0 streams.
2651                  *
2652                  * DC will clear link encoder assignments on the real state
2653                  * but the changes won't propagate over to the copy we made
2654                  * before the 0 streams commit.
2655                  *
2656                  * DC expects that link encoder assignments are *not* valid
2657                  * when committing a state, so as a workaround we can copy
2658                  * off of the current state.
2659                  *
2660                  * We lose the previous assignments, but we had already
2661                  * commit 0 streams anyway.
2662                  */
2663                 link_enc_cfg_copy(adev->dm.dc->current_state, dc_state);
2664
2665                 r = dm_dmub_hw_init(adev);
2666                 if (r)
2667                         DRM_ERROR("DMUB interface failed to initialize: status=%d\n", r);
2668
2669                 dc_set_power_state(dm->dc, DC_ACPI_CM_POWER_STATE_D0);
2670                 dc_resume(dm->dc);
2671
2672                 amdgpu_dm_irq_resume_early(adev);
2673
2674                 for (i = 0; i < dc_state->stream_count; i++) {
2675                         dc_state->streams[i]->mode_changed = true;
2676                         for (j = 0; j < dc_state->stream_status[i].plane_count; j++) {
2677                                 dc_state->stream_status[i].plane_states[j]->update_flags.raw
2678                                         = 0xffffffff;
2679                         }
2680                 }
2681
2682                 if (dc_is_dmub_outbox_supported(adev->dm.dc)) {
2683                         amdgpu_dm_outbox_init(adev);
2684                         dc_enable_dmub_outbox(adev->dm.dc);
2685                 }
2686
2687                 WARN_ON(!dc_commit_state(dm->dc, dc_state));
2688
2689                 dm_gpureset_commit_state(dm->cached_dc_state, dm);
2690
2691                 dm_gpureset_toggle_interrupts(adev, dm->cached_dc_state, true);
2692
2693                 dc_release_state(dm->cached_dc_state);
2694                 dm->cached_dc_state = NULL;
2695
2696                 amdgpu_dm_irq_resume_late(adev);
2697
2698                 mutex_unlock(&dm->dc_lock);
2699
2700                 return 0;
2701         }
2702         /* Recreate dc_state - DC invalidates it when setting power state to S3. */
2703         dc_release_state(dm_state->context);
2704         dm_state->context = dc_create_state(dm->dc);
2705         /* TODO: Remove dc_state->dccg, use dc->dccg directly. */
2706         dc_resource_state_construct(dm->dc, dm_state->context);
2707
2708         /* Before powering on DC we need to re-initialize DMUB. */
2709         dm_dmub_hw_resume(adev);
2710
2711         /* Re-enable outbox interrupts for DPIA. */
2712         if (dc_is_dmub_outbox_supported(adev->dm.dc)) {
2713                 amdgpu_dm_outbox_init(adev);
2714                 dc_enable_dmub_outbox(adev->dm.dc);
2715         }
2716
2717         /* power on hardware */
2718         dc_set_power_state(dm->dc, DC_ACPI_CM_POWER_STATE_D0);
2719
2720         /* program HPD filter */
2721         dc_resume(dm->dc);
2722
2723         /*
2724          * early enable HPD Rx IRQ, should be done before set mode as short
2725          * pulse interrupts are used for MST
2726          */
2727         amdgpu_dm_irq_resume_early(adev);
2728
2729         /* On resume we need to rewrite the MSTM control bits to enable MST*/
2730         s3_handle_mst(ddev, false);
2731
2732         /* Do detection*/
2733         drm_connector_list_iter_begin(ddev, &iter);
2734         drm_for_each_connector_iter(connector, &iter) {
2735                 aconnector = to_amdgpu_dm_connector(connector);
2736
2737                 if (!aconnector->dc_link)
2738                         continue;
2739
2740                 /*
2741                  * this is the case when traversing through already created
2742                  * MST connectors, should be skipped
2743                  */
2744                 if (aconnector->dc_link->type == dc_connection_mst_branch)
2745                         continue;
2746
2747                 mutex_lock(&aconnector->hpd_lock);
2748                 if (!dc_link_detect_sink(aconnector->dc_link, &new_connection_type))
2749                         DRM_ERROR("KMS: Failed to detect connector\n");
2750
2751                 if (aconnector->base.force && new_connection_type == dc_connection_none) {
2752                         emulated_link_detect(aconnector->dc_link);
2753                 } else {
2754                         mutex_lock(&dm->dc_lock);
2755                         dc_link_detect(aconnector->dc_link, DETECT_REASON_HPD);
2756                         mutex_unlock(&dm->dc_lock);
2757                 }
2758
2759                 if (aconnector->fake_enable && aconnector->dc_link->local_sink)
2760                         aconnector->fake_enable = false;
2761
2762                 if (aconnector->dc_sink)
2763                         dc_sink_release(aconnector->dc_sink);
2764                 aconnector->dc_sink = NULL;
2765                 amdgpu_dm_update_connector_after_detect(aconnector);
2766                 mutex_unlock(&aconnector->hpd_lock);
2767         }
2768         drm_connector_list_iter_end(&iter);
2769
2770         /* Force mode set in atomic commit */
2771         for_each_new_crtc_in_state(dm->cached_state, crtc, new_crtc_state, i)
2772                 new_crtc_state->active_changed = true;
2773
2774         /*
2775          * atomic_check is expected to create the dc states. We need to release
2776          * them here, since they were duplicated as part of the suspend
2777          * procedure.
2778          */
2779         for_each_new_crtc_in_state(dm->cached_state, crtc, new_crtc_state, i) {
2780                 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
2781                 if (dm_new_crtc_state->stream) {
2782                         WARN_ON(kref_read(&dm_new_crtc_state->stream->refcount) > 1);
2783                         dc_stream_release(dm_new_crtc_state->stream);
2784                         dm_new_crtc_state->stream = NULL;
2785                 }
2786         }
2787
2788         for_each_new_plane_in_state(dm->cached_state, plane, new_plane_state, i) {
2789                 dm_new_plane_state = to_dm_plane_state(new_plane_state);
2790                 if (dm_new_plane_state->dc_state) {
2791                         WARN_ON(kref_read(&dm_new_plane_state->dc_state->refcount) > 1);
2792                         dc_plane_state_release(dm_new_plane_state->dc_state);
2793                         dm_new_plane_state->dc_state = NULL;
2794                 }
2795         }
2796
2797         drm_atomic_helper_resume(ddev, dm->cached_state);
2798
2799         dm->cached_state = NULL;
2800
2801         amdgpu_dm_irq_resume_late(adev);
2802
2803         amdgpu_dm_smu_write_watermarks_table(adev);
2804
2805         return 0;
2806 }
2807
2808 /**
2809  * DOC: DM Lifecycle
2810  *
2811  * DM (and consequently DC) is registered in the amdgpu base driver as a IP
2812  * block. When CONFIG_DRM_AMD_DC is enabled, the DM device IP block is added to
2813  * the base driver's device list to be initialized and torn down accordingly.
2814  *
2815  * The functions to do so are provided as hooks in &struct amd_ip_funcs.
2816  */
2817
2818 static const struct amd_ip_funcs amdgpu_dm_funcs = {
2819         .name = "dm",
2820         .early_init = dm_early_init,
2821         .late_init = dm_late_init,
2822         .sw_init = dm_sw_init,
2823         .sw_fini = dm_sw_fini,
2824         .early_fini = amdgpu_dm_early_fini,
2825         .hw_init = dm_hw_init,
2826         .hw_fini = dm_hw_fini,
2827         .suspend = dm_suspend,
2828         .resume = dm_resume,
2829         .is_idle = dm_is_idle,
2830         .wait_for_idle = dm_wait_for_idle,
2831         .check_soft_reset = dm_check_soft_reset,
2832         .soft_reset = dm_soft_reset,
2833         .set_clockgating_state = dm_set_clockgating_state,
2834         .set_powergating_state = dm_set_powergating_state,
2835 };
2836
2837 const struct amdgpu_ip_block_version dm_ip_block =
2838 {
2839         .type = AMD_IP_BLOCK_TYPE_DCE,
2840         .major = 1,
2841         .minor = 0,
2842         .rev = 0,
2843         .funcs = &amdgpu_dm_funcs,
2844 };
2845
2846
2847 /**
2848  * DOC: atomic
2849  *
2850  * *WIP*
2851  */
2852
2853 static const struct drm_mode_config_funcs amdgpu_dm_mode_funcs = {
2854         .fb_create = amdgpu_display_user_framebuffer_create,
2855         .get_format_info = amd_get_format_info,
2856         .atomic_check = amdgpu_dm_atomic_check,
2857         .atomic_commit = drm_atomic_helper_commit,
2858 };
2859
2860 static struct drm_mode_config_helper_funcs amdgpu_dm_mode_config_helperfuncs = {
2861         .atomic_commit_tail = amdgpu_dm_atomic_commit_tail,
2862         .atomic_commit_setup = drm_dp_mst_atomic_setup_commit,
2863 };
2864
2865 static void update_connector_ext_caps(struct amdgpu_dm_connector *aconnector)
2866 {
2867         struct amdgpu_dm_backlight_caps *caps;
2868         struct amdgpu_display_manager *dm;
2869         struct drm_connector *conn_base;
2870         struct amdgpu_device *adev;
2871         struct dc_link *link = NULL;
2872         struct drm_luminance_range_info *luminance_range;
2873         int i;
2874
2875         if (!aconnector || !aconnector->dc_link)
2876                 return;
2877
2878         link = aconnector->dc_link;
2879         if (link->connector_signal != SIGNAL_TYPE_EDP)
2880                 return;
2881
2882         conn_base = &aconnector->base;
2883         adev = drm_to_adev(conn_base->dev);
2884         dm = &adev->dm;
2885         for (i = 0; i < dm->num_of_edps; i++) {
2886                 if (link == dm->backlight_link[i])
2887                         break;
2888         }
2889         if (i >= dm->num_of_edps)
2890                 return;
2891         caps = &dm->backlight_caps[i];
2892         caps->ext_caps = &aconnector->dc_link->dpcd_sink_ext_caps;
2893         caps->aux_support = false;
2894
2895         if (caps->ext_caps->bits.oled == 1 /*||
2896             caps->ext_caps->bits.sdr_aux_backlight_control == 1 ||
2897             caps->ext_caps->bits.hdr_aux_backlight_control == 1*/)
2898                 caps->aux_support = true;
2899
2900         if (amdgpu_backlight == 0)
2901                 caps->aux_support = false;
2902         else if (amdgpu_backlight == 1)
2903                 caps->aux_support = true;
2904
2905         luminance_range = &conn_base->display_info.luminance_range;
2906         caps->aux_min_input_signal = luminance_range->min_luminance;
2907         caps->aux_max_input_signal = luminance_range->max_luminance;
2908 }
2909
2910 void amdgpu_dm_update_connector_after_detect(
2911                 struct amdgpu_dm_connector *aconnector)
2912 {
2913         struct drm_connector *connector = &aconnector->base;
2914         struct drm_device *dev = connector->dev;
2915         struct dc_sink *sink;
2916
2917         /* MST handled by drm_mst framework */
2918         if (aconnector->mst_mgr.mst_state == true)
2919                 return;
2920
2921         sink = aconnector->dc_link->local_sink;
2922         if (sink)
2923                 dc_sink_retain(sink);
2924
2925         /*
2926          * Edid mgmt connector gets first update only in mode_valid hook and then
2927          * the connector sink is set to either fake or physical sink depends on link status.
2928          * Skip if already done during boot.
2929          */
2930         if (aconnector->base.force != DRM_FORCE_UNSPECIFIED
2931                         && aconnector->dc_em_sink) {
2932
2933                 /*
2934                  * For S3 resume with headless use eml_sink to fake stream
2935                  * because on resume connector->sink is set to NULL
2936                  */
2937                 mutex_lock(&dev->mode_config.mutex);
2938
2939                 if (sink) {
2940                         if (aconnector->dc_sink) {
2941                                 amdgpu_dm_update_freesync_caps(connector, NULL);
2942                                 /*
2943                                  * retain and release below are used to
2944                                  * bump up refcount for sink because the link doesn't point
2945                                  * to it anymore after disconnect, so on next crtc to connector
2946                                  * reshuffle by UMD we will get into unwanted dc_sink release
2947                                  */
2948                                 dc_sink_release(aconnector->dc_sink);
2949                         }
2950                         aconnector->dc_sink = sink;
2951                         dc_sink_retain(aconnector->dc_sink);
2952                         amdgpu_dm_update_freesync_caps(connector,
2953                                         aconnector->edid);
2954                 } else {
2955                         amdgpu_dm_update_freesync_caps(connector, NULL);
2956                         if (!aconnector->dc_sink) {
2957                                 aconnector->dc_sink = aconnector->dc_em_sink;
2958                                 dc_sink_retain(aconnector->dc_sink);
2959                         }
2960                 }
2961
2962                 mutex_unlock(&dev->mode_config.mutex);
2963
2964                 if (sink)
2965                         dc_sink_release(sink);
2966                 return;
2967         }
2968
2969         /*
2970          * TODO: temporary guard to look for proper fix
2971          * if this sink is MST sink, we should not do anything
2972          */
2973         if (sink && sink->sink_signal == SIGNAL_TYPE_DISPLAY_PORT_MST) {
2974                 dc_sink_release(sink);
2975                 return;
2976         }
2977
2978         if (aconnector->dc_sink == sink) {
2979                 /*
2980                  * We got a DP short pulse (Link Loss, DP CTS, etc...).
2981                  * Do nothing!!
2982                  */
2983                 DRM_DEBUG_DRIVER("DCHPD: connector_id=%d: dc_sink didn't change.\n",
2984                                 aconnector->connector_id);
2985                 if (sink)
2986                         dc_sink_release(sink);
2987                 return;
2988         }
2989
2990         DRM_DEBUG_DRIVER("DCHPD: connector_id=%d: Old sink=%p New sink=%p\n",
2991                 aconnector->connector_id, aconnector->dc_sink, sink);
2992
2993         mutex_lock(&dev->mode_config.mutex);
2994
2995         /*
2996          * 1. Update status of the drm connector
2997          * 2. Send an event and let userspace tell us what to do
2998          */
2999         if (sink) {
3000                 /*
3001                  * TODO: check if we still need the S3 mode update workaround.
3002                  * If yes, put it here.
3003                  */
3004                 if (aconnector->dc_sink) {
3005                         amdgpu_dm_update_freesync_caps(connector, NULL);
3006                         dc_sink_release(aconnector->dc_sink);
3007                 }
3008
3009                 aconnector->dc_sink = sink;
3010                 dc_sink_retain(aconnector->dc_sink);
3011                 if (sink->dc_edid.length == 0) {
3012                         aconnector->edid = NULL;
3013                         if (aconnector->dc_link->aux_mode) {
3014                                 drm_dp_cec_unset_edid(
3015                                         &aconnector->dm_dp_aux.aux);
3016                         }
3017                 } else {
3018                         aconnector->edid =
3019                                 (struct edid *)sink->dc_edid.raw_edid;
3020
3021                         if (aconnector->dc_link->aux_mode)
3022                                 drm_dp_cec_set_edid(&aconnector->dm_dp_aux.aux,
3023                                                     aconnector->edid);
3024                 }
3025
3026                 aconnector->timing_requested = kzalloc(sizeof(struct dc_crtc_timing), GFP_KERNEL);
3027                 if (!aconnector->timing_requested)
3028                         dm_error("%s: failed to create aconnector->requested_timing\n", __func__);
3029
3030                 drm_connector_update_edid_property(connector, aconnector->edid);
3031                 amdgpu_dm_update_freesync_caps(connector, aconnector->edid);
3032                 update_connector_ext_caps(aconnector);
3033         } else {
3034                 drm_dp_cec_unset_edid(&aconnector->dm_dp_aux.aux);
3035                 amdgpu_dm_update_freesync_caps(connector, NULL);
3036                 drm_connector_update_edid_property(connector, NULL);
3037                 aconnector->num_modes = 0;
3038                 dc_sink_release(aconnector->dc_sink);
3039                 aconnector->dc_sink = NULL;
3040                 aconnector->edid = NULL;
3041                 kfree(aconnector->timing_requested);
3042                 aconnector->timing_requested = NULL;
3043 #ifdef CONFIG_DRM_AMD_DC_HDCP
3044                 /* Set CP to DESIRED if it was ENABLED, so we can re-enable it again on hotplug */
3045                 if (connector->state->content_protection == DRM_MODE_CONTENT_PROTECTION_ENABLED)
3046                         connector->state->content_protection = DRM_MODE_CONTENT_PROTECTION_DESIRED;
3047 #endif
3048         }
3049
3050         mutex_unlock(&dev->mode_config.mutex);
3051
3052         update_subconnector_property(aconnector);
3053
3054         if (sink)
3055                 dc_sink_release(sink);
3056 }
3057
3058 static void handle_hpd_irq_helper(struct amdgpu_dm_connector *aconnector)
3059 {
3060         struct drm_connector *connector = &aconnector->base;
3061         struct drm_device *dev = connector->dev;
3062         enum dc_connection_type new_connection_type = dc_connection_none;
3063         struct amdgpu_device *adev = drm_to_adev(dev);
3064 #ifdef CONFIG_DRM_AMD_DC_HDCP
3065         struct dm_connector_state *dm_con_state = to_dm_connector_state(connector->state);
3066 #endif
3067         bool ret = false;
3068
3069         if (adev->dm.disable_hpd_irq)
3070                 return;
3071
3072         /*
3073          * In case of failure or MST no need to update connector status or notify the OS
3074          * since (for MST case) MST does this in its own context.
3075          */
3076         mutex_lock(&aconnector->hpd_lock);
3077
3078 #ifdef CONFIG_DRM_AMD_DC_HDCP
3079         if (adev->dm.hdcp_workqueue) {
3080                 hdcp_reset_display(adev->dm.hdcp_workqueue, aconnector->dc_link->link_index);
3081                 dm_con_state->update_hdcp = true;
3082         }
3083 #endif
3084         if (aconnector->fake_enable)
3085                 aconnector->fake_enable = false;
3086
3087         aconnector->timing_changed = false;
3088
3089         if (!dc_link_detect_sink(aconnector->dc_link, &new_connection_type))
3090                 DRM_ERROR("KMS: Failed to detect connector\n");
3091
3092         if (aconnector->base.force && new_connection_type == dc_connection_none) {
3093                 emulated_link_detect(aconnector->dc_link);
3094
3095                 drm_modeset_lock_all(dev);
3096                 dm_restore_drm_connector_state(dev, connector);
3097                 drm_modeset_unlock_all(dev);
3098
3099                 if (aconnector->base.force == DRM_FORCE_UNSPECIFIED)
3100                         drm_kms_helper_connector_hotplug_event(connector);
3101         } else {
3102                 mutex_lock(&adev->dm.dc_lock);
3103                 ret = dc_link_detect(aconnector->dc_link, DETECT_REASON_HPD);
3104                 mutex_unlock(&adev->dm.dc_lock);
3105                 if (ret) {
3106                         amdgpu_dm_update_connector_after_detect(aconnector);
3107
3108                         drm_modeset_lock_all(dev);
3109                         dm_restore_drm_connector_state(dev, connector);
3110                         drm_modeset_unlock_all(dev);
3111
3112                         if (aconnector->base.force == DRM_FORCE_UNSPECIFIED)
3113                                 drm_kms_helper_connector_hotplug_event(connector);
3114                 }
3115         }
3116         mutex_unlock(&aconnector->hpd_lock);
3117
3118 }
3119
3120 static void handle_hpd_irq(void *param)
3121 {
3122         struct amdgpu_dm_connector *aconnector = (struct amdgpu_dm_connector *)param;
3123
3124         handle_hpd_irq_helper(aconnector);
3125
3126 }
3127
3128 static void dm_handle_mst_sideband_msg(struct amdgpu_dm_connector *aconnector)
3129 {
3130         u8 esi[DP_PSR_ERROR_STATUS - DP_SINK_COUNT_ESI] = { 0 };
3131         u8 dret;
3132         bool new_irq_handled = false;
3133         int dpcd_addr;
3134         int dpcd_bytes_to_read;
3135
3136         const int max_process_count = 30;
3137         int process_count = 0;
3138
3139         const struct dc_link_status *link_status = dc_link_get_status(aconnector->dc_link);
3140
3141         if (link_status->dpcd_caps->dpcd_rev.raw < 0x12) {
3142                 dpcd_bytes_to_read = DP_LANE0_1_STATUS - DP_SINK_COUNT;
3143                 /* DPCD 0x200 - 0x201 for downstream IRQ */
3144                 dpcd_addr = DP_SINK_COUNT;
3145         } else {
3146                 dpcd_bytes_to_read = DP_PSR_ERROR_STATUS - DP_SINK_COUNT_ESI;
3147                 /* DPCD 0x2002 - 0x2005 for downstream IRQ */
3148                 dpcd_addr = DP_SINK_COUNT_ESI;
3149         }
3150
3151         dret = drm_dp_dpcd_read(
3152                 &aconnector->dm_dp_aux.aux,
3153                 dpcd_addr,
3154                 esi,
3155                 dpcd_bytes_to_read);
3156
3157         while (dret == dpcd_bytes_to_read &&
3158                 process_count < max_process_count) {
3159                 u8 retry;
3160                 dret = 0;
3161
3162                 process_count++;
3163
3164                 DRM_DEBUG_DRIVER("ESI %02x %02x %02x\n", esi[0], esi[1], esi[2]);
3165                 /* handle HPD short pulse irq */
3166                 if (aconnector->mst_mgr.mst_state)
3167                         drm_dp_mst_hpd_irq(
3168                                 &aconnector->mst_mgr,
3169                                 esi,
3170                                 &new_irq_handled);
3171
3172                 if (new_irq_handled) {
3173                         /* ACK at DPCD to notify down stream */
3174                         const int ack_dpcd_bytes_to_write =
3175                                 dpcd_bytes_to_read - 1;
3176
3177                         for (retry = 0; retry < 3; retry++) {
3178                                 u8 wret;
3179
3180                                 wret = drm_dp_dpcd_write(
3181                                         &aconnector->dm_dp_aux.aux,
3182                                         dpcd_addr + 1,
3183                                         &esi[1],
3184                                         ack_dpcd_bytes_to_write);
3185                                 if (wret == ack_dpcd_bytes_to_write)
3186                                         break;
3187                         }
3188
3189                         /* check if there is new irq to be handled */
3190                         dret = drm_dp_dpcd_read(
3191                                 &aconnector->dm_dp_aux.aux,
3192                                 dpcd_addr,
3193                                 esi,
3194                                 dpcd_bytes_to_read);
3195
3196                         new_irq_handled = false;
3197                 } else {
3198                         break;
3199                 }
3200         }
3201
3202         if (process_count == max_process_count)
3203                 DRM_DEBUG_DRIVER("Loop exceeded max iterations\n");
3204 }
3205
3206 static void schedule_hpd_rx_offload_work(struct hpd_rx_irq_offload_work_queue *offload_wq,
3207                                                         union hpd_irq_data hpd_irq_data)
3208 {
3209         struct hpd_rx_irq_offload_work *offload_work =
3210                                 kzalloc(sizeof(*offload_work), GFP_KERNEL);
3211
3212         if (!offload_work) {
3213                 DRM_ERROR("Failed to allocate hpd_rx_irq_offload_work.\n");
3214                 return;
3215         }
3216
3217         INIT_WORK(&offload_work->work, dm_handle_hpd_rx_offload_work);
3218         offload_work->data = hpd_irq_data;
3219         offload_work->offload_wq = offload_wq;
3220
3221         queue_work(offload_wq->wq, &offload_work->work);
3222         DRM_DEBUG_KMS("queue work to handle hpd_rx offload work");
3223 }
3224
3225 static void handle_hpd_rx_irq(void *param)
3226 {
3227         struct amdgpu_dm_connector *aconnector = (struct amdgpu_dm_connector *)param;
3228         struct drm_connector *connector = &aconnector->base;
3229         struct drm_device *dev = connector->dev;
3230         struct dc_link *dc_link = aconnector->dc_link;
3231         bool is_mst_root_connector = aconnector->mst_mgr.mst_state;
3232         bool result = false;
3233         enum dc_connection_type new_connection_type = dc_connection_none;
3234         struct amdgpu_device *adev = drm_to_adev(dev);
3235         union hpd_irq_data hpd_irq_data;
3236         bool link_loss = false;
3237         bool has_left_work = false;
3238         int idx = aconnector->base.index;
3239         struct hpd_rx_irq_offload_work_queue *offload_wq = &adev->dm.hpd_rx_offload_wq[idx];
3240
3241         memset(&hpd_irq_data, 0, sizeof(hpd_irq_data));
3242
3243         if (adev->dm.disable_hpd_irq)
3244                 return;
3245
3246         /*
3247          * TODO:Temporary add mutex to protect hpd interrupt not have a gpio
3248          * conflict, after implement i2c helper, this mutex should be
3249          * retired.
3250          */
3251         mutex_lock(&aconnector->hpd_lock);
3252
3253         result = dc_link_handle_hpd_rx_irq(dc_link, &hpd_irq_data,
3254                                                 &link_loss, true, &has_left_work);
3255
3256         if (!has_left_work)
3257                 goto out;
3258
3259         if (hpd_irq_data.bytes.device_service_irq.bits.AUTOMATED_TEST) {
3260                 schedule_hpd_rx_offload_work(offload_wq, hpd_irq_data);
3261                 goto out;
3262         }
3263
3264         if (dc_link_dp_allow_hpd_rx_irq(dc_link)) {
3265                 if (hpd_irq_data.bytes.device_service_irq.bits.UP_REQ_MSG_RDY ||
3266                         hpd_irq_data.bytes.device_service_irq.bits.DOWN_REP_MSG_RDY) {
3267                         dm_handle_mst_sideband_msg(aconnector);
3268                         goto out;
3269                 }
3270
3271                 if (link_loss) {
3272                         bool skip = false;
3273
3274                         spin_lock(&offload_wq->offload_lock);
3275                         skip = offload_wq->is_handling_link_loss;
3276
3277                         if (!skip)
3278                                 offload_wq->is_handling_link_loss = true;
3279
3280                         spin_unlock(&offload_wq->offload_lock);
3281
3282                         if (!skip)
3283                                 schedule_hpd_rx_offload_work(offload_wq, hpd_irq_data);
3284
3285                         goto out;
3286                 }
3287         }
3288
3289 out:
3290         if (result && !is_mst_root_connector) {
3291                 /* Downstream Port status changed. */
3292                 if (!dc_link_detect_sink(dc_link, &new_connection_type))
3293                         DRM_ERROR("KMS: Failed to detect connector\n");
3294
3295                 if (aconnector->base.force && new_connection_type == dc_connection_none) {
3296                         emulated_link_detect(dc_link);
3297
3298                         if (aconnector->fake_enable)
3299                                 aconnector->fake_enable = false;
3300
3301                         amdgpu_dm_update_connector_after_detect(aconnector);
3302
3303
3304                         drm_modeset_lock_all(dev);
3305                         dm_restore_drm_connector_state(dev, connector);
3306                         drm_modeset_unlock_all(dev);
3307
3308                         drm_kms_helper_connector_hotplug_event(connector);
3309                 } else {
3310                         bool ret = false;
3311
3312                         mutex_lock(&adev->dm.dc_lock);
3313                         ret = dc_link_detect(dc_link, DETECT_REASON_HPDRX);
3314                         mutex_unlock(&adev->dm.dc_lock);
3315
3316                         if (ret) {
3317                                 if (aconnector->fake_enable)
3318                                         aconnector->fake_enable = false;
3319
3320                                 amdgpu_dm_update_connector_after_detect(aconnector);
3321
3322                                 drm_modeset_lock_all(dev);
3323                                 dm_restore_drm_connector_state(dev, connector);
3324                                 drm_modeset_unlock_all(dev);
3325
3326                                 drm_kms_helper_connector_hotplug_event(connector);
3327                         }
3328                 }
3329         }
3330 #ifdef CONFIG_DRM_AMD_DC_HDCP
3331         if (hpd_irq_data.bytes.device_service_irq.bits.CP_IRQ) {
3332                 if (adev->dm.hdcp_workqueue)
3333                         hdcp_handle_cpirq(adev->dm.hdcp_workqueue,  aconnector->base.index);
3334         }
3335 #endif
3336
3337         if (dc_link->type != dc_connection_mst_branch)
3338                 drm_dp_cec_irq(&aconnector->dm_dp_aux.aux);
3339
3340         mutex_unlock(&aconnector->hpd_lock);
3341 }
3342
3343 static void register_hpd_handlers(struct amdgpu_device *adev)
3344 {
3345         struct drm_device *dev = adev_to_drm(adev);
3346         struct drm_connector *connector;
3347         struct amdgpu_dm_connector *aconnector;
3348         const struct dc_link *dc_link;
3349         struct dc_interrupt_params int_params = {0};
3350
3351         int_params.requested_polarity = INTERRUPT_POLARITY_DEFAULT;
3352         int_params.current_polarity = INTERRUPT_POLARITY_DEFAULT;
3353
3354         list_for_each_entry(connector,
3355                         &dev->mode_config.connector_list, head) {
3356
3357                 aconnector = to_amdgpu_dm_connector(connector);
3358                 dc_link = aconnector->dc_link;
3359
3360                 if (DC_IRQ_SOURCE_INVALID != dc_link->irq_source_hpd) {
3361                         int_params.int_context = INTERRUPT_LOW_IRQ_CONTEXT;
3362                         int_params.irq_source = dc_link->irq_source_hpd;
3363
3364                         amdgpu_dm_irq_register_interrupt(adev, &int_params,
3365                                         handle_hpd_irq,
3366                                         (void *) aconnector);
3367                 }
3368
3369                 if (DC_IRQ_SOURCE_INVALID != dc_link->irq_source_hpd_rx) {
3370
3371                         /* Also register for DP short pulse (hpd_rx). */
3372                         int_params.int_context = INTERRUPT_LOW_IRQ_CONTEXT;
3373                         int_params.irq_source = dc_link->irq_source_hpd_rx;
3374
3375                         amdgpu_dm_irq_register_interrupt(adev, &int_params,
3376                                         handle_hpd_rx_irq,
3377                                         (void *) aconnector);
3378
3379                         if (adev->dm.hpd_rx_offload_wq)
3380                                 adev->dm.hpd_rx_offload_wq[connector->index].aconnector =
3381                                         aconnector;
3382                 }
3383         }
3384 }
3385
3386 #if defined(CONFIG_DRM_AMD_DC_SI)
3387 /* Register IRQ sources and initialize IRQ callbacks */
3388 static int dce60_register_irq_handlers(struct amdgpu_device *adev)
3389 {
3390         struct dc *dc = adev->dm.dc;
3391         struct common_irq_params *c_irq_params;
3392         struct dc_interrupt_params int_params = {0};
3393         int r;
3394         int i;
3395         unsigned client_id = AMDGPU_IRQ_CLIENTID_LEGACY;
3396
3397         int_params.requested_polarity = INTERRUPT_POLARITY_DEFAULT;
3398         int_params.current_polarity = INTERRUPT_POLARITY_DEFAULT;
3399
3400         /*
3401          * Actions of amdgpu_irq_add_id():
3402          * 1. Register a set() function with base driver.
3403          *    Base driver will call set() function to enable/disable an
3404          *    interrupt in DC hardware.
3405          * 2. Register amdgpu_dm_irq_handler().
3406          *    Base driver will call amdgpu_dm_irq_handler() for ALL interrupts
3407          *    coming from DC hardware.
3408          *    amdgpu_dm_irq_handler() will re-direct the interrupt to DC
3409          *    for acknowledging and handling. */
3410
3411         /* Use VBLANK interrupt */
3412         for (i = 0; i < adev->mode_info.num_crtc; i++) {
3413                 r = amdgpu_irq_add_id(adev, client_id, i+1 , &adev->crtc_irq);
3414                 if (r) {
3415                         DRM_ERROR("Failed to add crtc irq id!\n");
3416                         return r;
3417                 }
3418
3419                 int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT;
3420                 int_params.irq_source =
3421                         dc_interrupt_to_irq_source(dc, i+1 , 0);
3422
3423                 c_irq_params = &adev->dm.vblank_params[int_params.irq_source - DC_IRQ_SOURCE_VBLANK1];
3424
3425                 c_irq_params->adev = adev;
3426                 c_irq_params->irq_src = int_params.irq_source;
3427
3428                 amdgpu_dm_irq_register_interrupt(adev, &int_params,
3429                                 dm_crtc_high_irq, c_irq_params);
3430         }
3431
3432         /* Use GRPH_PFLIP interrupt */
3433         for (i = VISLANDS30_IV_SRCID_D1_GRPH_PFLIP;
3434                         i <= VISLANDS30_IV_SRCID_D6_GRPH_PFLIP; i += 2) {
3435                 r = amdgpu_irq_add_id(adev, client_id, i, &adev->pageflip_irq);
3436                 if (r) {
3437                         DRM_ERROR("Failed to add page flip irq id!\n");
3438                         return r;
3439                 }
3440
3441                 int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT;
3442                 int_params.irq_source =
3443                         dc_interrupt_to_irq_source(dc, i, 0);
3444
3445                 c_irq_params = &adev->dm.pflip_params[int_params.irq_source - DC_IRQ_SOURCE_PFLIP_FIRST];
3446
3447                 c_irq_params->adev = adev;
3448                 c_irq_params->irq_src = int_params.irq_source;
3449
3450                 amdgpu_dm_irq_register_interrupt(adev, &int_params,
3451                                 dm_pflip_high_irq, c_irq_params);
3452
3453         }
3454
3455         /* HPD */
3456         r = amdgpu_irq_add_id(adev, client_id,
3457                         VISLANDS30_IV_SRCID_HOTPLUG_DETECT_A, &adev->hpd_irq);
3458         if (r) {
3459                 DRM_ERROR("Failed to add hpd irq id!\n");
3460                 return r;
3461         }
3462
3463         register_hpd_handlers(adev);
3464
3465         return 0;
3466 }
3467 #endif
3468
3469 /* Register IRQ sources and initialize IRQ callbacks */
3470 static int dce110_register_irq_handlers(struct amdgpu_device *adev)
3471 {
3472         struct dc *dc = adev->dm.dc;
3473         struct common_irq_params *c_irq_params;
3474         struct dc_interrupt_params int_params = {0};
3475         int r;
3476         int i;
3477         unsigned client_id = AMDGPU_IRQ_CLIENTID_LEGACY;
3478
3479         if (adev->family >= AMDGPU_FAMILY_AI)
3480                 client_id = SOC15_IH_CLIENTID_DCE;
3481
3482         int_params.requested_polarity = INTERRUPT_POLARITY_DEFAULT;
3483         int_params.current_polarity = INTERRUPT_POLARITY_DEFAULT;
3484
3485         /*
3486          * Actions of amdgpu_irq_add_id():
3487          * 1. Register a set() function with base driver.
3488          *    Base driver will call set() function to enable/disable an
3489          *    interrupt in DC hardware.
3490          * 2. Register amdgpu_dm_irq_handler().
3491          *    Base driver will call amdgpu_dm_irq_handler() for ALL interrupts
3492          *    coming from DC hardware.
3493          *    amdgpu_dm_irq_handler() will re-direct the interrupt to DC
3494          *    for acknowledging and handling. */
3495
3496         /* Use VBLANK interrupt */
3497         for (i = VISLANDS30_IV_SRCID_D1_VERTICAL_INTERRUPT0; i <= VISLANDS30_IV_SRCID_D6_VERTICAL_INTERRUPT0; i++) {
3498                 r = amdgpu_irq_add_id(adev, client_id, i, &adev->crtc_irq);
3499                 if (r) {
3500                         DRM_ERROR("Failed to add crtc irq id!\n");
3501                         return r;
3502                 }
3503
3504                 int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT;
3505                 int_params.irq_source =
3506                         dc_interrupt_to_irq_source(dc, i, 0);
3507
3508                 c_irq_params = &adev->dm.vblank_params[int_params.irq_source - DC_IRQ_SOURCE_VBLANK1];
3509
3510                 c_irq_params->adev = adev;
3511                 c_irq_params->irq_src = int_params.irq_source;
3512
3513                 amdgpu_dm_irq_register_interrupt(adev, &int_params,
3514                                 dm_crtc_high_irq, c_irq_params);
3515         }
3516
3517         /* Use VUPDATE interrupt */
3518         for (i = VISLANDS30_IV_SRCID_D1_V_UPDATE_INT; i <= VISLANDS30_IV_SRCID_D6_V_UPDATE_INT; i += 2) {
3519                 r = amdgpu_irq_add_id(adev, client_id, i, &adev->vupdate_irq);
3520                 if (r) {
3521                         DRM_ERROR("Failed to add vupdate irq id!\n");
3522                         return r;
3523                 }
3524
3525                 int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT;
3526                 int_params.irq_source =
3527                         dc_interrupt_to_irq_source(dc, i, 0);
3528
3529                 c_irq_params = &adev->dm.vupdate_params[int_params.irq_source - DC_IRQ_SOURCE_VUPDATE1];
3530
3531                 c_irq_params->adev = adev;
3532                 c_irq_params->irq_src = int_params.irq_source;
3533
3534                 amdgpu_dm_irq_register_interrupt(adev, &int_params,
3535                                 dm_vupdate_high_irq, c_irq_params);
3536         }
3537
3538         /* Use GRPH_PFLIP interrupt */
3539         for (i = VISLANDS30_IV_SRCID_D1_GRPH_PFLIP;
3540                         i <= VISLANDS30_IV_SRCID_D6_GRPH_PFLIP; i += 2) {
3541                 r = amdgpu_irq_add_id(adev, client_id, i, &adev->pageflip_irq);
3542                 if (r) {
3543                         DRM_ERROR("Failed to add page flip irq id!\n");
3544                         return r;
3545                 }
3546
3547                 int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT;
3548                 int_params.irq_source =
3549                         dc_interrupt_to_irq_source(dc, i, 0);
3550
3551                 c_irq_params = &adev->dm.pflip_params[int_params.irq_source - DC_IRQ_SOURCE_PFLIP_FIRST];
3552
3553                 c_irq_params->adev = adev;
3554                 c_irq_params->irq_src = int_params.irq_source;
3555
3556                 amdgpu_dm_irq_register_interrupt(adev, &int_params,
3557                                 dm_pflip_high_irq, c_irq_params);
3558
3559         }
3560
3561         /* HPD */
3562         r = amdgpu_irq_add_id(adev, client_id,
3563                         VISLANDS30_IV_SRCID_HOTPLUG_DETECT_A, &adev->hpd_irq);
3564         if (r) {
3565                 DRM_ERROR("Failed to add hpd irq id!\n");
3566                 return r;
3567         }
3568
3569         register_hpd_handlers(adev);
3570
3571         return 0;
3572 }
3573
3574 /* Register IRQ sources and initialize IRQ callbacks */
3575 static int dcn10_register_irq_handlers(struct amdgpu_device *adev)
3576 {
3577         struct dc *dc = adev->dm.dc;
3578         struct common_irq_params *c_irq_params;
3579         struct dc_interrupt_params int_params = {0};
3580         int r;
3581         int i;
3582 #if defined(CONFIG_DRM_AMD_SECURE_DISPLAY)
3583         static const unsigned int vrtl_int_srcid[] = {
3584                 DCN_1_0__SRCID__OTG1_VERTICAL_INTERRUPT0_CONTROL,
3585                 DCN_1_0__SRCID__OTG2_VERTICAL_INTERRUPT0_CONTROL,
3586                 DCN_1_0__SRCID__OTG3_VERTICAL_INTERRUPT0_CONTROL,
3587                 DCN_1_0__SRCID__OTG4_VERTICAL_INTERRUPT0_CONTROL,
3588                 DCN_1_0__SRCID__OTG5_VERTICAL_INTERRUPT0_CONTROL,
3589                 DCN_1_0__SRCID__OTG6_VERTICAL_INTERRUPT0_CONTROL
3590         };
3591 #endif
3592
3593         int_params.requested_polarity = INTERRUPT_POLARITY_DEFAULT;
3594         int_params.current_polarity = INTERRUPT_POLARITY_DEFAULT;
3595
3596         /*
3597          * Actions of amdgpu_irq_add_id():
3598          * 1. Register a set() function with base driver.
3599          *    Base driver will call set() function to enable/disable an
3600          *    interrupt in DC hardware.
3601          * 2. Register amdgpu_dm_irq_handler().
3602          *    Base driver will call amdgpu_dm_irq_handler() for ALL interrupts
3603          *    coming from DC hardware.
3604          *    amdgpu_dm_irq_handler() will re-direct the interrupt to DC
3605          *    for acknowledging and handling.
3606          */
3607
3608         /* Use VSTARTUP interrupt */
3609         for (i = DCN_1_0__SRCID__DC_D1_OTG_VSTARTUP;
3610                         i <= DCN_1_0__SRCID__DC_D1_OTG_VSTARTUP + adev->mode_info.num_crtc - 1;
3611                         i++) {
3612                 r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_DCE, i, &adev->crtc_irq);
3613
3614                 if (r) {
3615                         DRM_ERROR("Failed to add crtc irq id!\n");
3616                         return r;
3617                 }
3618
3619                 int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT;
3620                 int_params.irq_source =
3621                         dc_interrupt_to_irq_source(dc, i, 0);
3622
3623                 c_irq_params = &adev->dm.vblank_params[int_params.irq_source - DC_IRQ_SOURCE_VBLANK1];
3624
3625                 c_irq_params->adev = adev;
3626                 c_irq_params->irq_src = int_params.irq_source;
3627
3628                 amdgpu_dm_irq_register_interrupt(
3629                         adev, &int_params, dm_crtc_high_irq, c_irq_params);
3630         }
3631
3632         /* Use otg vertical line interrupt */
3633 #if defined(CONFIG_DRM_AMD_SECURE_DISPLAY)
3634         for (i = 0; i <= adev->mode_info.num_crtc - 1; i++) {
3635                 r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_DCE,
3636                                 vrtl_int_srcid[i], &adev->vline0_irq);
3637
3638                 if (r) {
3639                         DRM_ERROR("Failed to add vline0 irq id!\n");
3640                         return r;
3641                 }
3642
3643                 int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT;
3644                 int_params.irq_source =
3645                         dc_interrupt_to_irq_source(dc, vrtl_int_srcid[i], 0);
3646
3647                 if (int_params.irq_source == DC_IRQ_SOURCE_INVALID) {
3648                         DRM_ERROR("Failed to register vline0 irq %d!\n", vrtl_int_srcid[i]);
3649                         break;
3650                 }
3651
3652                 c_irq_params = &adev->dm.vline0_params[int_params.irq_source
3653                                         - DC_IRQ_SOURCE_DC1_VLINE0];
3654
3655                 c_irq_params->adev = adev;
3656                 c_irq_params->irq_src = int_params.irq_source;
3657
3658                 amdgpu_dm_irq_register_interrupt(adev, &int_params,
3659                                 dm_dcn_vertical_interrupt0_high_irq, c_irq_params);
3660         }
3661 #endif
3662
3663         /* Use VUPDATE_NO_LOCK interrupt on DCN, which seems to correspond to
3664          * the regular VUPDATE interrupt on DCE. We want DC_IRQ_SOURCE_VUPDATEx
3665          * to trigger at end of each vblank, regardless of state of the lock,
3666          * matching DCE behaviour.
3667          */
3668         for (i = DCN_1_0__SRCID__OTG0_IHC_V_UPDATE_NO_LOCK_INTERRUPT;
3669              i <= DCN_1_0__SRCID__OTG0_IHC_V_UPDATE_NO_LOCK_INTERRUPT + adev->mode_info.num_crtc - 1;
3670              i++) {
3671                 r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_DCE, i, &adev->vupdate_irq);
3672
3673                 if (r) {
3674                         DRM_ERROR("Failed to add vupdate irq id!\n");
3675                         return r;
3676                 }
3677
3678                 int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT;
3679                 int_params.irq_source =
3680                         dc_interrupt_to_irq_source(dc, i, 0);
3681
3682                 c_irq_params = &adev->dm.vupdate_params[int_params.irq_source - DC_IRQ_SOURCE_VUPDATE1];
3683
3684                 c_irq_params->adev = adev;
3685                 c_irq_params->irq_src = int_params.irq_source;
3686
3687                 amdgpu_dm_irq_register_interrupt(adev, &int_params,
3688                                 dm_vupdate_high_irq, c_irq_params);
3689         }
3690
3691         /* Use GRPH_PFLIP interrupt */
3692         for (i = DCN_1_0__SRCID__HUBP0_FLIP_INTERRUPT;
3693                         i <= DCN_1_0__SRCID__HUBP0_FLIP_INTERRUPT + dc->caps.max_otg_num - 1;
3694                         i++) {
3695                 r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_DCE, i, &adev->pageflip_irq);
3696                 if (r) {
3697                         DRM_ERROR("Failed to add page flip irq id!\n");
3698                         return r;
3699                 }
3700
3701                 int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT;
3702                 int_params.irq_source =
3703                         dc_interrupt_to_irq_source(dc, i, 0);
3704
3705                 c_irq_params = &adev->dm.pflip_params[int_params.irq_source - DC_IRQ_SOURCE_PFLIP_FIRST];
3706
3707                 c_irq_params->adev = adev;
3708                 c_irq_params->irq_src = int_params.irq_source;
3709
3710                 amdgpu_dm_irq_register_interrupt(adev, &int_params,
3711                                 dm_pflip_high_irq, c_irq_params);
3712
3713         }
3714
3715         /* HPD */
3716         r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_DCE, DCN_1_0__SRCID__DC_HPD1_INT,
3717                         &adev->hpd_irq);
3718         if (r) {
3719                 DRM_ERROR("Failed to add hpd irq id!\n");
3720                 return r;
3721         }
3722
3723         register_hpd_handlers(adev);
3724
3725         return 0;
3726 }
3727 /* Register Outbox IRQ sources and initialize IRQ callbacks */
3728 static int register_outbox_irq_handlers(struct amdgpu_device *adev)
3729 {
3730         struct dc *dc = adev->dm.dc;
3731         struct common_irq_params *c_irq_params;
3732         struct dc_interrupt_params int_params = {0};
3733         int r, i;
3734
3735         int_params.requested_polarity = INTERRUPT_POLARITY_DEFAULT;
3736         int_params.current_polarity = INTERRUPT_POLARITY_DEFAULT;
3737
3738         r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_DCE, DCN_1_0__SRCID__DMCUB_OUTBOX_LOW_PRIORITY_READY_INT,
3739                         &adev->dmub_outbox_irq);
3740         if (r) {
3741                 DRM_ERROR("Failed to add outbox irq id!\n");
3742                 return r;
3743         }
3744
3745         if (dc->ctx->dmub_srv) {
3746                 i = DCN_1_0__SRCID__DMCUB_OUTBOX_LOW_PRIORITY_READY_INT;
3747                 int_params.int_context = INTERRUPT_LOW_IRQ_CONTEXT;
3748                 int_params.irq_source =
3749                 dc_interrupt_to_irq_source(dc, i, 0);
3750
3751                 c_irq_params = &adev->dm.dmub_outbox_params[0];
3752
3753                 c_irq_params->adev = adev;
3754                 c_irq_params->irq_src = int_params.irq_source;
3755
3756                 amdgpu_dm_irq_register_interrupt(adev, &int_params,
3757                                 dm_dmub_outbox1_low_irq, c_irq_params);
3758         }
3759
3760         return 0;
3761 }
3762
3763 /*
3764  * Acquires the lock for the atomic state object and returns
3765  * the new atomic state.
3766  *
3767  * This should only be called during atomic check.
3768  */
3769 int dm_atomic_get_state(struct drm_atomic_state *state,
3770                         struct dm_atomic_state **dm_state)
3771 {
3772         struct drm_device *dev = state->dev;
3773         struct amdgpu_device *adev = drm_to_adev(dev);
3774         struct amdgpu_display_manager *dm = &adev->dm;
3775         struct drm_private_state *priv_state;
3776
3777         if (*dm_state)
3778                 return 0;
3779
3780         priv_state = drm_atomic_get_private_obj_state(state, &dm->atomic_obj);
3781         if (IS_ERR(priv_state))
3782                 return PTR_ERR(priv_state);
3783
3784         *dm_state = to_dm_atomic_state(priv_state);
3785
3786         return 0;
3787 }
3788
3789 static struct dm_atomic_state *
3790 dm_atomic_get_new_state(struct drm_atomic_state *state)
3791 {
3792         struct drm_device *dev = state->dev;
3793         struct amdgpu_device *adev = drm_to_adev(dev);
3794         struct amdgpu_display_manager *dm = &adev->dm;
3795         struct drm_private_obj *obj;
3796         struct drm_private_state *new_obj_state;
3797         int i;
3798
3799         for_each_new_private_obj_in_state(state, obj, new_obj_state, i) {
3800                 if (obj->funcs == dm->atomic_obj.funcs)
3801                         return to_dm_atomic_state(new_obj_state);
3802         }
3803
3804         return NULL;
3805 }
3806
3807 static struct drm_private_state *
3808 dm_atomic_duplicate_state(struct drm_private_obj *obj)
3809 {
3810         struct dm_atomic_state *old_state, *new_state;
3811
3812         new_state = kzalloc(sizeof(*new_state), GFP_KERNEL);
3813         if (!new_state)
3814                 return NULL;
3815
3816         __drm_atomic_helper_private_obj_duplicate_state(obj, &new_state->base);
3817
3818         old_state = to_dm_atomic_state(obj->state);
3819
3820         if (old_state && old_state->context)
3821                 new_state->context = dc_copy_state(old_state->context);
3822
3823         if (!new_state->context) {
3824                 kfree(new_state);
3825                 return NULL;
3826         }
3827
3828         return &new_state->base;
3829 }
3830
3831 static void dm_atomic_destroy_state(struct drm_private_obj *obj,
3832                                     struct drm_private_state *state)
3833 {
3834         struct dm_atomic_state *dm_state = to_dm_atomic_state(state);
3835
3836         if (dm_state && dm_state->context)
3837                 dc_release_state(dm_state->context);
3838
3839         kfree(dm_state);
3840 }
3841
3842 static struct drm_private_state_funcs dm_atomic_state_funcs = {
3843         .atomic_duplicate_state = dm_atomic_duplicate_state,
3844         .atomic_destroy_state = dm_atomic_destroy_state,
3845 };
3846
3847 static int amdgpu_dm_mode_config_init(struct amdgpu_device *adev)
3848 {
3849         struct dm_atomic_state *state;
3850         int r;
3851
3852         adev->mode_info.mode_config_initialized = true;
3853
3854         adev_to_drm(adev)->mode_config.funcs = (void *)&amdgpu_dm_mode_funcs;
3855         adev_to_drm(adev)->mode_config.helper_private = &amdgpu_dm_mode_config_helperfuncs;
3856
3857         adev_to_drm(adev)->mode_config.max_width = 16384;
3858         adev_to_drm(adev)->mode_config.max_height = 16384;
3859
3860         adev_to_drm(adev)->mode_config.preferred_depth = 24;
3861         if (adev->asic_type == CHIP_HAWAII)
3862                 /* disable prefer shadow for now due to hibernation issues */
3863                 adev_to_drm(adev)->mode_config.prefer_shadow = 0;
3864         else
3865                 adev_to_drm(adev)->mode_config.prefer_shadow = 1;
3866         /* indicates support for immediate flip */
3867         adev_to_drm(adev)->mode_config.async_page_flip = true;
3868
3869         state = kzalloc(sizeof(*state), GFP_KERNEL);
3870         if (!state)
3871                 return -ENOMEM;
3872
3873         state->context = dc_create_state(adev->dm.dc);
3874         if (!state->context) {
3875                 kfree(state);
3876                 return -ENOMEM;
3877         }
3878
3879         dc_resource_state_copy_construct_current(adev->dm.dc, state->context);
3880
3881         drm_atomic_private_obj_init(adev_to_drm(adev),
3882                                     &adev->dm.atomic_obj,
3883                                     &state->base,
3884                                     &dm_atomic_state_funcs);
3885
3886         r = amdgpu_display_modeset_create_props(adev);
3887         if (r) {
3888                 dc_release_state(state->context);
3889                 kfree(state);
3890                 return r;
3891         }
3892
3893         r = amdgpu_dm_audio_init(adev);
3894         if (r) {
3895                 dc_release_state(state->context);
3896                 kfree(state);
3897                 return r;
3898         }
3899
3900         return 0;
3901 }
3902
3903 #define AMDGPU_DM_DEFAULT_MIN_BACKLIGHT 12
3904 #define AMDGPU_DM_DEFAULT_MAX_BACKLIGHT 255
3905 #define AUX_BL_DEFAULT_TRANSITION_TIME_MS 50
3906
3907 static void amdgpu_dm_update_backlight_caps(struct amdgpu_display_manager *dm,
3908                                             int bl_idx)
3909 {
3910 #if defined(CONFIG_ACPI)
3911         struct amdgpu_dm_backlight_caps caps;
3912
3913         memset(&caps, 0, sizeof(caps));
3914
3915         if (dm->backlight_caps[bl_idx].caps_valid)
3916                 return;
3917
3918         amdgpu_acpi_get_backlight_caps(&caps);
3919         if (caps.caps_valid) {
3920                 dm->backlight_caps[bl_idx].caps_valid = true;
3921                 if (caps.aux_support)
3922                         return;
3923                 dm->backlight_caps[bl_idx].min_input_signal = caps.min_input_signal;
3924                 dm->backlight_caps[bl_idx].max_input_signal = caps.max_input_signal;
3925         } else {
3926                 dm->backlight_caps[bl_idx].min_input_signal =
3927                                 AMDGPU_DM_DEFAULT_MIN_BACKLIGHT;
3928                 dm->backlight_caps[bl_idx].max_input_signal =
3929                                 AMDGPU_DM_DEFAULT_MAX_BACKLIGHT;
3930         }
3931 #else
3932         if (dm->backlight_caps[bl_idx].aux_support)
3933                 return;
3934
3935         dm->backlight_caps[bl_idx].min_input_signal = AMDGPU_DM_DEFAULT_MIN_BACKLIGHT;
3936         dm->backlight_caps[bl_idx].max_input_signal = AMDGPU_DM_DEFAULT_MAX_BACKLIGHT;
3937 #endif
3938 }
3939
3940 static int get_brightness_range(const struct amdgpu_dm_backlight_caps *caps,
3941                                 unsigned *min, unsigned *max)
3942 {
3943         if (!caps)
3944                 return 0;
3945
3946         if (caps->aux_support) {
3947                 // Firmware limits are in nits, DC API wants millinits.
3948                 *max = 1000 * caps->aux_max_input_signal;
3949                 *min = 1000 * caps->aux_min_input_signal;
3950         } else {
3951                 // Firmware limits are 8-bit, PWM control is 16-bit.
3952                 *max = 0x101 * caps->max_input_signal;
3953                 *min = 0x101 * caps->min_input_signal;
3954         }
3955         return 1;
3956 }
3957
3958 static u32 convert_brightness_from_user(const struct amdgpu_dm_backlight_caps *caps,
3959                                         uint32_t brightness)
3960 {
3961         unsigned min, max;
3962
3963         if (!get_brightness_range(caps, &min, &max))
3964                 return brightness;
3965
3966         // Rescale 0..255 to min..max
3967         return min + DIV_ROUND_CLOSEST((max - min) * brightness,
3968                                        AMDGPU_MAX_BL_LEVEL);
3969 }
3970
3971 static u32 convert_brightness_to_user(const struct amdgpu_dm_backlight_caps *caps,
3972                                       uint32_t brightness)
3973 {
3974         unsigned min, max;
3975
3976         if (!get_brightness_range(caps, &min, &max))
3977                 return brightness;
3978
3979         if (brightness < min)
3980                 return 0;
3981         // Rescale min..max to 0..255
3982         return DIV_ROUND_CLOSEST(AMDGPU_MAX_BL_LEVEL * (brightness - min),
3983                                  max - min);
3984 }
3985
3986 static void amdgpu_dm_backlight_set_level(struct amdgpu_display_manager *dm,
3987                                          int bl_idx,
3988                                          u32 user_brightness)
3989 {
3990         struct amdgpu_dm_backlight_caps caps;
3991         struct dc_link *link;
3992         u32 brightness;
3993         bool rc;
3994
3995         amdgpu_dm_update_backlight_caps(dm, bl_idx);
3996         caps = dm->backlight_caps[bl_idx];
3997
3998         dm->brightness[bl_idx] = user_brightness;
3999         /* update scratch register */
4000         if (bl_idx == 0)
4001                 amdgpu_atombios_scratch_regs_set_backlight_level(dm->adev, dm->brightness[bl_idx]);
4002         brightness = convert_brightness_from_user(&caps, dm->brightness[bl_idx]);
4003         link = (struct dc_link *)dm->backlight_link[bl_idx];
4004
4005         /* Change brightness based on AUX property */
4006         if (caps.aux_support) {
4007                 rc = dc_link_set_backlight_level_nits(link, true, brightness,
4008                                                       AUX_BL_DEFAULT_TRANSITION_TIME_MS);
4009                 if (!rc)
4010                         DRM_DEBUG("DM: Failed to update backlight via AUX on eDP[%d]\n", bl_idx);
4011         } else {
4012                 rc = dc_link_set_backlight_level(link, brightness, 0);
4013                 if (!rc)
4014                         DRM_DEBUG("DM: Failed to update backlight on eDP[%d]\n", bl_idx);
4015         }
4016
4017         if (rc)
4018                 dm->actual_brightness[bl_idx] = user_brightness;
4019 }
4020
4021 static int amdgpu_dm_backlight_update_status(struct backlight_device *bd)
4022 {
4023         struct amdgpu_display_manager *dm = bl_get_data(bd);
4024         int i;
4025
4026         for (i = 0; i < dm->num_of_edps; i++) {
4027                 if (bd == dm->backlight_dev[i])
4028                         break;
4029         }
4030         if (i >= AMDGPU_DM_MAX_NUM_EDP)
4031                 i = 0;
4032         amdgpu_dm_backlight_set_level(dm, i, bd->props.brightness);
4033
4034         return 0;
4035 }
4036
4037 static u32 amdgpu_dm_backlight_get_level(struct amdgpu_display_manager *dm,
4038                                          int bl_idx)
4039 {
4040         struct amdgpu_dm_backlight_caps caps;
4041         struct dc_link *link = (struct dc_link *)dm->backlight_link[bl_idx];
4042
4043         amdgpu_dm_update_backlight_caps(dm, bl_idx);
4044         caps = dm->backlight_caps[bl_idx];
4045
4046         if (caps.aux_support) {
4047                 u32 avg, peak;
4048                 bool rc;
4049
4050                 rc = dc_link_get_backlight_level_nits(link, &avg, &peak);
4051                 if (!rc)
4052                         return dm->brightness[bl_idx];
4053                 return convert_brightness_to_user(&caps, avg);
4054         } else {
4055                 int ret = dc_link_get_backlight_level(link);
4056
4057                 if (ret == DC_ERROR_UNEXPECTED)
4058                         return dm->brightness[bl_idx];
4059                 return convert_brightness_to_user(&caps, ret);
4060         }
4061 }
4062
4063 static int amdgpu_dm_backlight_get_brightness(struct backlight_device *bd)
4064 {
4065         struct amdgpu_display_manager *dm = bl_get_data(bd);
4066         int i;
4067
4068         for (i = 0; i < dm->num_of_edps; i++) {
4069                 if (bd == dm->backlight_dev[i])
4070                         break;
4071         }
4072         if (i >= AMDGPU_DM_MAX_NUM_EDP)
4073                 i = 0;
4074         return amdgpu_dm_backlight_get_level(dm, i);
4075 }
4076
4077 static const struct backlight_ops amdgpu_dm_backlight_ops = {
4078         .options = BL_CORE_SUSPENDRESUME,
4079         .get_brightness = amdgpu_dm_backlight_get_brightness,
4080         .update_status  = amdgpu_dm_backlight_update_status,
4081 };
4082
4083 static void
4084 amdgpu_dm_register_backlight_device(struct amdgpu_display_manager *dm)
4085 {
4086         char bl_name[16];
4087         struct backlight_properties props = { 0 };
4088
4089         amdgpu_dm_update_backlight_caps(dm, dm->num_of_edps);
4090         dm->brightness[dm->num_of_edps] = AMDGPU_MAX_BL_LEVEL;
4091
4092         if (!acpi_video_backlight_use_native()) {
4093                 drm_info(adev_to_drm(dm->adev), "Skipping amdgpu DM backlight registration\n");
4094                 /* Try registering an ACPI video backlight device instead. */
4095                 acpi_video_register_backlight();
4096                 return;
4097         }
4098
4099         props.max_brightness = AMDGPU_MAX_BL_LEVEL;
4100         props.brightness = AMDGPU_MAX_BL_LEVEL;
4101         props.type = BACKLIGHT_RAW;
4102
4103         snprintf(bl_name, sizeof(bl_name), "amdgpu_bl%d",
4104                  adev_to_drm(dm->adev)->primary->index + dm->num_of_edps);
4105
4106         dm->backlight_dev[dm->num_of_edps] = backlight_device_register(bl_name,
4107                                                                        adev_to_drm(dm->adev)->dev,
4108                                                                        dm,
4109                                                                        &amdgpu_dm_backlight_ops,
4110                                                                        &props);
4111
4112         if (IS_ERR(dm->backlight_dev[dm->num_of_edps]))
4113                 DRM_ERROR("DM: Backlight registration failed!\n");
4114         else
4115                 DRM_DEBUG_DRIVER("DM: Registered Backlight device: %s\n", bl_name);
4116 }
4117
4118 static int initialize_plane(struct amdgpu_display_manager *dm,
4119                             struct amdgpu_mode_info *mode_info, int plane_id,
4120                             enum drm_plane_type plane_type,
4121                             const struct dc_plane_cap *plane_cap)
4122 {
4123         struct drm_plane *plane;
4124         unsigned long possible_crtcs;
4125         int ret = 0;
4126
4127         plane = kzalloc(sizeof(struct drm_plane), GFP_KERNEL);
4128         if (!plane) {
4129                 DRM_ERROR("KMS: Failed to allocate plane\n");
4130                 return -ENOMEM;
4131         }
4132         plane->type = plane_type;
4133
4134         /*
4135          * HACK: IGT tests expect that the primary plane for a CRTC
4136          * can only have one possible CRTC. Only expose support for
4137          * any CRTC if they're not going to be used as a primary plane
4138          * for a CRTC - like overlay or underlay planes.
4139          */
4140         possible_crtcs = 1 << plane_id;
4141         if (plane_id >= dm->dc->caps.max_streams)
4142                 possible_crtcs = 0xff;
4143
4144         ret = amdgpu_dm_plane_init(dm, plane, possible_crtcs, plane_cap);
4145
4146         if (ret) {
4147                 DRM_ERROR("KMS: Failed to initialize plane\n");
4148                 kfree(plane);
4149                 return ret;
4150         }
4151
4152         if (mode_info)
4153                 mode_info->planes[plane_id] = plane;
4154
4155         return ret;
4156 }
4157
4158
4159 static void register_backlight_device(struct amdgpu_display_manager *dm,
4160                                       struct dc_link *link)
4161 {
4162         if ((link->connector_signal & (SIGNAL_TYPE_EDP | SIGNAL_TYPE_LVDS)) &&
4163             link->type != dc_connection_none) {
4164                 /*
4165                  * Event if registration failed, we should continue with
4166                  * DM initialization because not having a backlight control
4167                  * is better then a black screen.
4168                  */
4169                 if (!dm->backlight_dev[dm->num_of_edps])
4170                         amdgpu_dm_register_backlight_device(dm);
4171
4172                 if (dm->backlight_dev[dm->num_of_edps]) {
4173                         dm->backlight_link[dm->num_of_edps] = link;
4174                         dm->num_of_edps++;
4175                 }
4176         }
4177 }
4178
4179 static void amdgpu_set_panel_orientation(struct drm_connector *connector);
4180
4181 /*
4182  * In this architecture, the association
4183  * connector -> encoder -> crtc
4184  * id not really requried. The crtc and connector will hold the
4185  * display_index as an abstraction to use with DAL component
4186  *
4187  * Returns 0 on success
4188  */
4189 static int amdgpu_dm_initialize_drm_device(struct amdgpu_device *adev)
4190 {
4191         struct amdgpu_display_manager *dm = &adev->dm;
4192         s32 i;
4193         struct amdgpu_dm_connector *aconnector = NULL;
4194         struct amdgpu_encoder *aencoder = NULL;
4195         struct amdgpu_mode_info *mode_info = &adev->mode_info;
4196         u32 link_cnt;
4197         s32 primary_planes;
4198         enum dc_connection_type new_connection_type = dc_connection_none;
4199         const struct dc_plane_cap *plane;
4200         bool psr_feature_enabled = false;
4201
4202         dm->display_indexes_num = dm->dc->caps.max_streams;
4203         /* Update the actual used number of crtc */
4204         adev->mode_info.num_crtc = adev->dm.display_indexes_num;
4205
4206         link_cnt = dm->dc->caps.max_links;
4207         if (amdgpu_dm_mode_config_init(dm->adev)) {
4208                 DRM_ERROR("DM: Failed to initialize mode config\n");
4209                 return -EINVAL;
4210         }
4211
4212         /* There is one primary plane per CRTC */
4213         primary_planes = dm->dc->caps.max_streams;
4214         ASSERT(primary_planes <= AMDGPU_MAX_PLANES);
4215
4216         /*
4217          * Initialize primary planes, implicit planes for legacy IOCTLS.
4218          * Order is reversed to match iteration order in atomic check.
4219          */
4220         for (i = (primary_planes - 1); i >= 0; i--) {
4221                 plane = &dm->dc->caps.planes[i];
4222
4223                 if (initialize_plane(dm, mode_info, i,
4224                                      DRM_PLANE_TYPE_PRIMARY, plane)) {
4225                         DRM_ERROR("KMS: Failed to initialize primary plane\n");
4226                         goto fail;
4227                 }
4228         }
4229
4230         /*
4231          * Initialize overlay planes, index starting after primary planes.
4232          * These planes have a higher DRM index than the primary planes since
4233          * they should be considered as having a higher z-order.
4234          * Order is reversed to match iteration order in atomic check.
4235          *
4236          * Only support DCN for now, and only expose one so we don't encourage
4237          * userspace to use up all the pipes.
4238          */
4239         for (i = 0; i < dm->dc->caps.max_planes; ++i) {
4240                 struct dc_plane_cap *plane = &dm->dc->caps.planes[i];
4241
4242                 /* Do not create overlay if MPO disabled */
4243                 if (amdgpu_dc_debug_mask & DC_DISABLE_MPO)
4244                         break;
4245
4246                 if (plane->type != DC_PLANE_TYPE_DCN_UNIVERSAL)
4247                         continue;
4248
4249                 if (!plane->blends_with_above || !plane->blends_with_below)
4250                         continue;
4251
4252                 if (!plane->pixel_format_support.argb8888)
4253                         continue;
4254
4255                 if (initialize_plane(dm, NULL, primary_planes + i,
4256                                      DRM_PLANE_TYPE_OVERLAY, plane)) {
4257                         DRM_ERROR("KMS: Failed to initialize overlay plane\n");
4258                         goto fail;
4259                 }
4260
4261                 /* Only create one overlay plane. */
4262                 break;
4263         }
4264
4265         for (i = 0; i < dm->dc->caps.max_streams; i++)
4266                 if (amdgpu_dm_crtc_init(dm, mode_info->planes[i], i)) {
4267                         DRM_ERROR("KMS: Failed to initialize crtc\n");
4268                         goto fail;
4269                 }
4270
4271         /* Use Outbox interrupt */
4272         switch (adev->ip_versions[DCE_HWIP][0]) {
4273         case IP_VERSION(3, 0, 0):
4274         case IP_VERSION(3, 1, 2):
4275         case IP_VERSION(3, 1, 3):
4276         case IP_VERSION(3, 1, 4):
4277         case IP_VERSION(3, 1, 5):
4278         case IP_VERSION(3, 1, 6):
4279         case IP_VERSION(3, 2, 0):
4280         case IP_VERSION(3, 2, 1):
4281         case IP_VERSION(2, 1, 0):
4282                 if (register_outbox_irq_handlers(dm->adev)) {
4283                         DRM_ERROR("DM: Failed to initialize IRQ\n");
4284                         goto fail;
4285                 }
4286                 break;
4287         default:
4288                 DRM_DEBUG_KMS("Unsupported DCN IP version for outbox: 0x%X\n",
4289                               adev->ip_versions[DCE_HWIP][0]);
4290         }
4291
4292         /* Determine whether to enable PSR support by default. */
4293         if (!(amdgpu_dc_debug_mask & DC_DISABLE_PSR)) {
4294                 switch (adev->ip_versions[DCE_HWIP][0]) {
4295                 case IP_VERSION(3, 1, 2):
4296                 case IP_VERSION(3, 1, 3):
4297                 case IP_VERSION(3, 1, 4):
4298                 case IP_VERSION(3, 1, 5):
4299                 case IP_VERSION(3, 1, 6):
4300                 case IP_VERSION(3, 2, 0):
4301                 case IP_VERSION(3, 2, 1):
4302                         psr_feature_enabled = true;
4303                         break;
4304                 default:
4305                         psr_feature_enabled = amdgpu_dc_feature_mask & DC_PSR_MASK;
4306                         break;
4307                 }
4308         }
4309
4310         /* loops over all connectors on the board */
4311         for (i = 0; i < link_cnt; i++) {
4312                 struct dc_link *link = NULL;
4313
4314                 if (i > AMDGPU_DM_MAX_DISPLAY_INDEX) {
4315                         DRM_ERROR(
4316                                 "KMS: Cannot support more than %d display indexes\n",
4317                                         AMDGPU_DM_MAX_DISPLAY_INDEX);
4318                         continue;
4319                 }
4320
4321                 aconnector = kzalloc(sizeof(*aconnector), GFP_KERNEL);
4322                 if (!aconnector)
4323                         goto fail;
4324
4325                 aencoder = kzalloc(sizeof(*aencoder), GFP_KERNEL);
4326                 if (!aencoder)
4327                         goto fail;
4328
4329                 if (amdgpu_dm_encoder_init(dm->ddev, aencoder, i)) {
4330                         DRM_ERROR("KMS: Failed to initialize encoder\n");
4331                         goto fail;
4332                 }
4333
4334                 if (amdgpu_dm_connector_init(dm, aconnector, i, aencoder)) {
4335                         DRM_ERROR("KMS: Failed to initialize connector\n");
4336                         goto fail;
4337                 }
4338
4339                 link = dc_get_link_at_index(dm->dc, i);
4340
4341                 if (!dc_link_detect_sink(link, &new_connection_type))
4342                         DRM_ERROR("KMS: Failed to detect connector\n");
4343
4344                 if (aconnector->base.force && new_connection_type == dc_connection_none) {
4345                         emulated_link_detect(link);
4346                         amdgpu_dm_update_connector_after_detect(aconnector);
4347                 } else {
4348                         bool ret = false;
4349
4350                         mutex_lock(&dm->dc_lock);
4351                         ret = dc_link_detect(link, DETECT_REASON_BOOT);
4352                         mutex_unlock(&dm->dc_lock);
4353
4354                         if (ret) {
4355                                 amdgpu_dm_update_connector_after_detect(aconnector);
4356                                 register_backlight_device(dm, link);
4357
4358                                 if (dm->num_of_edps)
4359                                         update_connector_ext_caps(aconnector);
4360
4361                                 if (psr_feature_enabled)
4362                                         amdgpu_dm_set_psr_caps(link);
4363
4364                                 /* TODO: Fix vblank control helpers to delay PSR entry to allow this when
4365                                  * PSR is also supported.
4366                                  */
4367                                 if (link->psr_settings.psr_feature_enabled)
4368                                         adev_to_drm(adev)->vblank_disable_immediate = false;
4369                         }
4370                 }
4371                 amdgpu_set_panel_orientation(&aconnector->base);
4372         }
4373
4374         /* If we didn't find a panel, notify the acpi video detection */
4375         if (dm->adev->flags & AMD_IS_APU && dm->num_of_edps == 0)
4376                 acpi_video_report_nolcd();
4377
4378         /* Software is initialized. Now we can register interrupt handlers. */
4379         switch (adev->asic_type) {
4380 #if defined(CONFIG_DRM_AMD_DC_SI)
4381         case CHIP_TAHITI:
4382         case CHIP_PITCAIRN:
4383         case CHIP_VERDE:
4384         case CHIP_OLAND:
4385                 if (dce60_register_irq_handlers(dm->adev)) {
4386                         DRM_ERROR("DM: Failed to initialize IRQ\n");
4387                         goto fail;
4388                 }
4389                 break;
4390 #endif
4391         case CHIP_BONAIRE:
4392         case CHIP_HAWAII:
4393         case CHIP_KAVERI:
4394         case CHIP_KABINI:
4395         case CHIP_MULLINS:
4396         case CHIP_TONGA:
4397         case CHIP_FIJI:
4398         case CHIP_CARRIZO:
4399         case CHIP_STONEY:
4400         case CHIP_POLARIS11:
4401         case CHIP_POLARIS10:
4402         case CHIP_POLARIS12:
4403         case CHIP_VEGAM:
4404         case CHIP_VEGA10:
4405         case CHIP_VEGA12:
4406         case CHIP_VEGA20:
4407                 if (dce110_register_irq_handlers(dm->adev)) {
4408                         DRM_ERROR("DM: Failed to initialize IRQ\n");
4409                         goto fail;
4410                 }
4411                 break;
4412         default:
4413                 switch (adev->ip_versions[DCE_HWIP][0]) {
4414                 case IP_VERSION(1, 0, 0):
4415                 case IP_VERSION(1, 0, 1):
4416                 case IP_VERSION(2, 0, 2):
4417                 case IP_VERSION(2, 0, 3):
4418                 case IP_VERSION(2, 0, 0):
4419                 case IP_VERSION(2, 1, 0):
4420                 case IP_VERSION(3, 0, 0):
4421                 case IP_VERSION(3, 0, 2):
4422                 case IP_VERSION(3, 0, 3):
4423                 case IP_VERSION(3, 0, 1):
4424                 case IP_VERSION(3, 1, 2):
4425                 case IP_VERSION(3, 1, 3):
4426                 case IP_VERSION(3, 1, 4):
4427                 case IP_VERSION(3, 1, 5):
4428                 case IP_VERSION(3, 1, 6):
4429                 case IP_VERSION(3, 2, 0):
4430                 case IP_VERSION(3, 2, 1):
4431                         if (dcn10_register_irq_handlers(dm->adev)) {
4432                                 DRM_ERROR("DM: Failed to initialize IRQ\n");
4433                                 goto fail;
4434                         }
4435                         break;
4436                 default:
4437                         DRM_ERROR("Unsupported DCE IP versions: 0x%X\n",
4438                                         adev->ip_versions[DCE_HWIP][0]);
4439                         goto fail;
4440                 }
4441                 break;
4442         }
4443
4444         return 0;
4445 fail:
4446         kfree(aencoder);
4447         kfree(aconnector);
4448
4449         return -EINVAL;
4450 }
4451
4452 static void amdgpu_dm_destroy_drm_device(struct amdgpu_display_manager *dm)
4453 {
4454         drm_atomic_private_obj_fini(&dm->atomic_obj);
4455         return;
4456 }
4457
4458 /******************************************************************************
4459  * amdgpu_display_funcs functions
4460  *****************************************************************************/
4461
4462 /*
4463  * dm_bandwidth_update - program display watermarks
4464  *
4465  * @adev: amdgpu_device pointer
4466  *
4467  * Calculate and program the display watermarks and line buffer allocation.
4468  */
4469 static void dm_bandwidth_update(struct amdgpu_device *adev)
4470 {
4471         /* TODO: implement later */
4472 }
4473
4474 static const struct amdgpu_display_funcs dm_display_funcs = {
4475         .bandwidth_update = dm_bandwidth_update, /* called unconditionally */
4476         .vblank_get_counter = dm_vblank_get_counter,/* called unconditionally */
4477         .backlight_set_level = NULL, /* never called for DC */
4478         .backlight_get_level = NULL, /* never called for DC */
4479         .hpd_sense = NULL,/* called unconditionally */
4480         .hpd_set_polarity = NULL, /* called unconditionally */
4481         .hpd_get_gpio_reg = NULL, /* VBIOS parsing. DAL does it. */
4482         .page_flip_get_scanoutpos =
4483                 dm_crtc_get_scanoutpos,/* called unconditionally */
4484         .add_encoder = NULL, /* VBIOS parsing. DAL does it. */
4485         .add_connector = NULL, /* VBIOS parsing. DAL does it. */
4486 };
4487
4488 #if defined(CONFIG_DEBUG_KERNEL_DC)
4489
4490 static ssize_t s3_debug_store(struct device *device,
4491                               struct device_attribute *attr,
4492                               const char *buf,
4493                               size_t count)
4494 {
4495         int ret;
4496         int s3_state;
4497         struct drm_device *drm_dev = dev_get_drvdata(device);
4498         struct amdgpu_device *adev = drm_to_adev(drm_dev);
4499
4500         ret = kstrtoint(buf, 0, &s3_state);
4501
4502         if (ret == 0) {
4503                 if (s3_state) {
4504                         dm_resume(adev);
4505                         drm_kms_helper_hotplug_event(adev_to_drm(adev));
4506                 } else
4507                         dm_suspend(adev);
4508         }
4509
4510         return ret == 0 ? count : 0;
4511 }
4512
4513 DEVICE_ATTR_WO(s3_debug);
4514
4515 #endif
4516
4517 static int dm_init_microcode(struct amdgpu_device *adev)
4518 {
4519         char *fw_name_dmub;
4520         int r;
4521
4522         switch (adev->ip_versions[DCE_HWIP][0]) {
4523         case IP_VERSION(2, 1, 0):
4524                 fw_name_dmub = FIRMWARE_RENOIR_DMUB;
4525                 if (ASICREV_IS_GREEN_SARDINE(adev->external_rev_id))
4526                         fw_name_dmub = FIRMWARE_GREEN_SARDINE_DMUB;
4527                 break;
4528         case IP_VERSION(3, 0, 0):
4529                 if (adev->ip_versions[GC_HWIP][0] == IP_VERSION(10, 3, 0))
4530                         fw_name_dmub = FIRMWARE_SIENNA_CICHLID_DMUB;
4531                 else
4532                         fw_name_dmub = FIRMWARE_NAVY_FLOUNDER_DMUB;
4533                 break;
4534         case IP_VERSION(3, 0, 1):
4535                 fw_name_dmub = FIRMWARE_VANGOGH_DMUB;
4536                 break;
4537         case IP_VERSION(3, 0, 2):
4538                 fw_name_dmub = FIRMWARE_DIMGREY_CAVEFISH_DMUB;
4539                 break;
4540         case IP_VERSION(3, 0, 3):
4541                 fw_name_dmub = FIRMWARE_BEIGE_GOBY_DMUB;
4542                 break;
4543         case IP_VERSION(3, 1, 2):
4544         case IP_VERSION(3, 1, 3):
4545                 fw_name_dmub = FIRMWARE_YELLOW_CARP_DMUB;
4546                 break;
4547         case IP_VERSION(3, 1, 4):
4548                 fw_name_dmub = FIRMWARE_DCN_314_DMUB;
4549                 break;
4550         case IP_VERSION(3, 1, 5):
4551                 fw_name_dmub = FIRMWARE_DCN_315_DMUB;
4552                 break;
4553         case IP_VERSION(3, 1, 6):
4554                 fw_name_dmub = FIRMWARE_DCN316_DMUB;
4555                 break;
4556         case IP_VERSION(3, 2, 0):
4557                 fw_name_dmub = FIRMWARE_DCN_V3_2_0_DMCUB;
4558                 break;
4559         case IP_VERSION(3, 2, 1):
4560                 fw_name_dmub = FIRMWARE_DCN_V3_2_1_DMCUB;
4561                 break;
4562         default:
4563                 /* ASIC doesn't support DMUB. */
4564                 return 0;
4565         }
4566         r = amdgpu_ucode_request(adev, &adev->dm.dmub_fw, fw_name_dmub);
4567         if (r)
4568                 DRM_ERROR("DMUB firmware loading failed: %d\n", r);
4569         return r;
4570 }
4571
4572 static int dm_early_init(void *handle)
4573 {
4574         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
4575
4576         switch (adev->asic_type) {
4577 #if defined(CONFIG_DRM_AMD_DC_SI)
4578         case CHIP_TAHITI:
4579         case CHIP_PITCAIRN:
4580         case CHIP_VERDE:
4581                 adev->mode_info.num_crtc = 6;
4582                 adev->mode_info.num_hpd = 6;
4583                 adev->mode_info.num_dig = 6;
4584                 break;
4585         case CHIP_OLAND:
4586                 adev->mode_info.num_crtc = 2;
4587                 adev->mode_info.num_hpd = 2;
4588                 adev->mode_info.num_dig = 2;
4589                 break;
4590 #endif
4591         case CHIP_BONAIRE:
4592         case CHIP_HAWAII:
4593                 adev->mode_info.num_crtc = 6;
4594                 adev->mode_info.num_hpd = 6;
4595                 adev->mode_info.num_dig = 6;
4596                 break;
4597         case CHIP_KAVERI:
4598                 adev->mode_info.num_crtc = 4;
4599                 adev->mode_info.num_hpd = 6;
4600                 adev->mode_info.num_dig = 7;
4601                 break;
4602         case CHIP_KABINI:
4603         case CHIP_MULLINS:
4604                 adev->mode_info.num_crtc = 2;
4605                 adev->mode_info.num_hpd = 6;
4606                 adev->mode_info.num_dig = 6;
4607                 break;
4608         case CHIP_FIJI:
4609         case CHIP_TONGA:
4610                 adev->mode_info.num_crtc = 6;
4611                 adev->mode_info.num_hpd = 6;
4612                 adev->mode_info.num_dig = 7;
4613                 break;
4614         case CHIP_CARRIZO:
4615                 adev->mode_info.num_crtc = 3;
4616                 adev->mode_info.num_hpd = 6;
4617                 adev->mode_info.num_dig = 9;
4618                 break;
4619         case CHIP_STONEY:
4620                 adev->mode_info.num_crtc = 2;
4621                 adev->mode_info.num_hpd = 6;
4622                 adev->mode_info.num_dig = 9;
4623                 break;
4624         case CHIP_POLARIS11:
4625         case CHIP_POLARIS12:
4626                 adev->mode_info.num_crtc = 5;
4627                 adev->mode_info.num_hpd = 5;
4628                 adev->mode_info.num_dig = 5;
4629                 break;
4630         case CHIP_POLARIS10:
4631         case CHIP_VEGAM:
4632                 adev->mode_info.num_crtc = 6;
4633                 adev->mode_info.num_hpd = 6;
4634                 adev->mode_info.num_dig = 6;
4635                 break;
4636         case CHIP_VEGA10:
4637         case CHIP_VEGA12:
4638         case CHIP_VEGA20:
4639                 adev->mode_info.num_crtc = 6;
4640                 adev->mode_info.num_hpd = 6;
4641                 adev->mode_info.num_dig = 6;
4642                 break;
4643         default:
4644
4645                 switch (adev->ip_versions[DCE_HWIP][0]) {
4646                 case IP_VERSION(2, 0, 2):
4647                 case IP_VERSION(3, 0, 0):
4648                         adev->mode_info.num_crtc = 6;
4649                         adev->mode_info.num_hpd = 6;
4650                         adev->mode_info.num_dig = 6;
4651                         break;
4652                 case IP_VERSION(2, 0, 0):
4653                 case IP_VERSION(3, 0, 2):
4654                         adev->mode_info.num_crtc = 5;
4655                         adev->mode_info.num_hpd = 5;
4656                         adev->mode_info.num_dig = 5;
4657                         break;
4658                 case IP_VERSION(2, 0, 3):
4659                 case IP_VERSION(3, 0, 3):
4660                         adev->mode_info.num_crtc = 2;
4661                         adev->mode_info.num_hpd = 2;
4662                         adev->mode_info.num_dig = 2;
4663                         break;
4664                 case IP_VERSION(1, 0, 0):
4665                 case IP_VERSION(1, 0, 1):
4666                 case IP_VERSION(3, 0, 1):
4667                 case IP_VERSION(2, 1, 0):
4668                 case IP_VERSION(3, 1, 2):
4669                 case IP_VERSION(3, 1, 3):
4670                 case IP_VERSION(3, 1, 4):
4671                 case IP_VERSION(3, 1, 5):
4672                 case IP_VERSION(3, 1, 6):
4673                 case IP_VERSION(3, 2, 0):
4674                 case IP_VERSION(3, 2, 1):
4675                         adev->mode_info.num_crtc = 4;
4676                         adev->mode_info.num_hpd = 4;
4677                         adev->mode_info.num_dig = 4;
4678                         break;
4679                 default:
4680                         DRM_ERROR("Unsupported DCE IP versions: 0x%x\n",
4681                                         adev->ip_versions[DCE_HWIP][0]);
4682                         return -EINVAL;
4683                 }
4684                 break;
4685         }
4686
4687         amdgpu_dm_set_irq_funcs(adev);
4688
4689         if (adev->mode_info.funcs == NULL)
4690                 adev->mode_info.funcs = &dm_display_funcs;
4691
4692         /*
4693          * Note: Do NOT change adev->audio_endpt_rreg and
4694          * adev->audio_endpt_wreg because they are initialised in
4695          * amdgpu_device_init()
4696          */
4697 #if defined(CONFIG_DEBUG_KERNEL_DC)
4698         device_create_file(
4699                 adev_to_drm(adev)->dev,
4700                 &dev_attr_s3_debug);
4701 #endif
4702         adev->dc_enabled = true;
4703
4704         return dm_init_microcode(adev);
4705 }
4706
4707 static bool modereset_required(struct drm_crtc_state *crtc_state)
4708 {
4709         return !crtc_state->active && drm_atomic_crtc_needs_modeset(crtc_state);
4710 }
4711
4712 static void amdgpu_dm_encoder_destroy(struct drm_encoder *encoder)
4713 {
4714         drm_encoder_cleanup(encoder);
4715         kfree(encoder);
4716 }
4717
4718 static const struct drm_encoder_funcs amdgpu_dm_encoder_funcs = {
4719         .destroy = amdgpu_dm_encoder_destroy,
4720 };
4721
4722 static int
4723 fill_plane_color_attributes(const struct drm_plane_state *plane_state,
4724                             const enum surface_pixel_format format,
4725                             enum dc_color_space *color_space)
4726 {
4727         bool full_range;
4728
4729         *color_space = COLOR_SPACE_SRGB;
4730
4731         /* DRM color properties only affect non-RGB formats. */
4732         if (format < SURFACE_PIXEL_FORMAT_VIDEO_BEGIN)
4733                 return 0;
4734
4735         full_range = (plane_state->color_range == DRM_COLOR_YCBCR_FULL_RANGE);
4736
4737         switch (plane_state->color_encoding) {
4738         case DRM_COLOR_YCBCR_BT601:
4739                 if (full_range)
4740                         *color_space = COLOR_SPACE_YCBCR601;
4741                 else
4742                         *color_space = COLOR_SPACE_YCBCR601_LIMITED;
4743                 break;
4744
4745         case DRM_COLOR_YCBCR_BT709:
4746                 if (full_range)
4747                         *color_space = COLOR_SPACE_YCBCR709;
4748                 else
4749                         *color_space = COLOR_SPACE_YCBCR709_LIMITED;
4750                 break;
4751
4752         case DRM_COLOR_YCBCR_BT2020:
4753                 if (full_range)
4754                         *color_space = COLOR_SPACE_2020_YCBCR;
4755                 else
4756                         return -EINVAL;
4757                 break;
4758
4759         default:
4760                 return -EINVAL;
4761         }
4762
4763         return 0;
4764 }
4765
4766 static int
4767 fill_dc_plane_info_and_addr(struct amdgpu_device *adev,
4768                             const struct drm_plane_state *plane_state,
4769                             const u64 tiling_flags,
4770                             struct dc_plane_info *plane_info,
4771                             struct dc_plane_address *address,
4772                             bool tmz_surface,
4773                             bool force_disable_dcc)
4774 {
4775         const struct drm_framebuffer *fb = plane_state->fb;
4776         const struct amdgpu_framebuffer *afb =
4777                 to_amdgpu_framebuffer(plane_state->fb);
4778         int ret;
4779
4780         memset(plane_info, 0, sizeof(*plane_info));
4781
4782         switch (fb->format->format) {
4783         case DRM_FORMAT_C8:
4784                 plane_info->format =
4785                         SURFACE_PIXEL_FORMAT_GRPH_PALETA_256_COLORS;
4786                 break;
4787         case DRM_FORMAT_RGB565:
4788                 plane_info->format = SURFACE_PIXEL_FORMAT_GRPH_RGB565;
4789                 break;
4790         case DRM_FORMAT_XRGB8888:
4791         case DRM_FORMAT_ARGB8888:
4792                 plane_info->format = SURFACE_PIXEL_FORMAT_GRPH_ARGB8888;
4793                 break;
4794         case DRM_FORMAT_XRGB2101010:
4795         case DRM_FORMAT_ARGB2101010:
4796                 plane_info->format = SURFACE_PIXEL_FORMAT_GRPH_ARGB2101010;
4797                 break;
4798         case DRM_FORMAT_XBGR2101010:
4799         case DRM_FORMAT_ABGR2101010:
4800                 plane_info->format = SURFACE_PIXEL_FORMAT_GRPH_ABGR2101010;
4801                 break;
4802         case DRM_FORMAT_XBGR8888:
4803         case DRM_FORMAT_ABGR8888:
4804                 plane_info->format = SURFACE_PIXEL_FORMAT_GRPH_ABGR8888;
4805                 break;
4806         case DRM_FORMAT_NV21:
4807                 plane_info->format = SURFACE_PIXEL_FORMAT_VIDEO_420_YCbCr;
4808                 break;
4809         case DRM_FORMAT_NV12:
4810                 plane_info->format = SURFACE_PIXEL_FORMAT_VIDEO_420_YCrCb;
4811                 break;
4812         case DRM_FORMAT_P010:
4813                 plane_info->format = SURFACE_PIXEL_FORMAT_VIDEO_420_10bpc_YCrCb;
4814                 break;
4815         case DRM_FORMAT_XRGB16161616F:
4816         case DRM_FORMAT_ARGB16161616F:
4817                 plane_info->format = SURFACE_PIXEL_FORMAT_GRPH_ARGB16161616F;
4818                 break;
4819         case DRM_FORMAT_XBGR16161616F:
4820         case DRM_FORMAT_ABGR16161616F:
4821                 plane_info->format = SURFACE_PIXEL_FORMAT_GRPH_ABGR16161616F;
4822                 break;
4823         case DRM_FORMAT_XRGB16161616:
4824         case DRM_FORMAT_ARGB16161616:
4825                 plane_info->format = SURFACE_PIXEL_FORMAT_GRPH_ARGB16161616;
4826                 break;
4827         case DRM_FORMAT_XBGR16161616:
4828         case DRM_FORMAT_ABGR16161616:
4829                 plane_info->format = SURFACE_PIXEL_FORMAT_GRPH_ABGR16161616;
4830                 break;
4831         default:
4832                 DRM_ERROR(
4833                         "Unsupported screen format %p4cc\n",
4834                         &fb->format->format);
4835                 return -EINVAL;
4836         }
4837
4838         switch (plane_state->rotation & DRM_MODE_ROTATE_MASK) {
4839         case DRM_MODE_ROTATE_0:
4840                 plane_info->rotation = ROTATION_ANGLE_0;
4841                 break;
4842         case DRM_MODE_ROTATE_90:
4843                 plane_info->rotation = ROTATION_ANGLE_90;
4844                 break;
4845         case DRM_MODE_ROTATE_180:
4846                 plane_info->rotation = ROTATION_ANGLE_180;
4847                 break;
4848         case DRM_MODE_ROTATE_270:
4849                 plane_info->rotation = ROTATION_ANGLE_270;
4850                 break;
4851         default:
4852                 plane_info->rotation = ROTATION_ANGLE_0;
4853                 break;
4854         }
4855
4856
4857         plane_info->visible = true;
4858         plane_info->stereo_format = PLANE_STEREO_FORMAT_NONE;
4859
4860         plane_info->layer_index = plane_state->normalized_zpos;
4861
4862         ret = fill_plane_color_attributes(plane_state, plane_info->format,
4863                                           &plane_info->color_space);
4864         if (ret)
4865                 return ret;
4866
4867         ret = fill_plane_buffer_attributes(adev, afb, plane_info->format,
4868                                            plane_info->rotation, tiling_flags,
4869                                            &plane_info->tiling_info,
4870                                            &plane_info->plane_size,
4871                                            &plane_info->dcc, address,
4872                                            tmz_surface, force_disable_dcc);
4873         if (ret)
4874                 return ret;
4875
4876         fill_blending_from_plane_state(
4877                 plane_state, &plane_info->per_pixel_alpha, &plane_info->pre_multiplied_alpha,
4878                 &plane_info->global_alpha, &plane_info->global_alpha_value);
4879
4880         return 0;
4881 }
4882
4883 static int fill_dc_plane_attributes(struct amdgpu_device *adev,
4884                                     struct dc_plane_state *dc_plane_state,
4885                                     struct drm_plane_state *plane_state,
4886                                     struct drm_crtc_state *crtc_state)
4887 {
4888         struct dm_crtc_state *dm_crtc_state = to_dm_crtc_state(crtc_state);
4889         struct amdgpu_framebuffer *afb = (struct amdgpu_framebuffer *)plane_state->fb;
4890         struct dc_scaling_info scaling_info;
4891         struct dc_plane_info plane_info;
4892         int ret;
4893         bool force_disable_dcc = false;
4894
4895         ret = fill_dc_scaling_info(adev, plane_state, &scaling_info);
4896         if (ret)
4897                 return ret;
4898
4899         dc_plane_state->src_rect = scaling_info.src_rect;
4900         dc_plane_state->dst_rect = scaling_info.dst_rect;
4901         dc_plane_state->clip_rect = scaling_info.clip_rect;
4902         dc_plane_state->scaling_quality = scaling_info.scaling_quality;
4903
4904         force_disable_dcc = adev->asic_type == CHIP_RAVEN && adev->in_suspend;
4905         ret = fill_dc_plane_info_and_addr(adev, plane_state,
4906                                           afb->tiling_flags,
4907                                           &plane_info,
4908                                           &dc_plane_state->address,
4909                                           afb->tmz_surface,
4910                                           force_disable_dcc);
4911         if (ret)
4912                 return ret;
4913
4914         dc_plane_state->format = plane_info.format;
4915         dc_plane_state->color_space = plane_info.color_space;
4916         dc_plane_state->format = plane_info.format;
4917         dc_plane_state->plane_size = plane_info.plane_size;
4918         dc_plane_state->rotation = plane_info.rotation;
4919         dc_plane_state->horizontal_mirror = plane_info.horizontal_mirror;
4920         dc_plane_state->stereo_format = plane_info.stereo_format;
4921         dc_plane_state->tiling_info = plane_info.tiling_info;
4922         dc_plane_state->visible = plane_info.visible;
4923         dc_plane_state->per_pixel_alpha = plane_info.per_pixel_alpha;
4924         dc_plane_state->pre_multiplied_alpha = plane_info.pre_multiplied_alpha;
4925         dc_plane_state->global_alpha = plane_info.global_alpha;
4926         dc_plane_state->global_alpha_value = plane_info.global_alpha_value;
4927         dc_plane_state->dcc = plane_info.dcc;
4928         dc_plane_state->layer_index = plane_info.layer_index;
4929         dc_plane_state->flip_int_enabled = true;
4930
4931         /*
4932          * Always set input transfer function, since plane state is refreshed
4933          * every time.
4934          */
4935         ret = amdgpu_dm_update_plane_color_mgmt(dm_crtc_state, dc_plane_state);
4936         if (ret)
4937                 return ret;
4938
4939         return 0;
4940 }
4941
4942 static inline void fill_dc_dirty_rect(struct drm_plane *plane,
4943                                       struct rect *dirty_rect, int32_t x,
4944                                       s32 y, s32 width, s32 height,
4945                                       int *i, bool ffu)
4946 {
4947         if (*i > DC_MAX_DIRTY_RECTS)
4948                 return;
4949
4950         if (*i == DC_MAX_DIRTY_RECTS)
4951                 goto out;
4952
4953         dirty_rect->x = x;
4954         dirty_rect->y = y;
4955         dirty_rect->width = width;
4956         dirty_rect->height = height;
4957
4958         if (ffu)
4959                 drm_dbg(plane->dev,
4960                         "[PLANE:%d] PSR FFU dirty rect size (%d, %d)\n",
4961                         plane->base.id, width, height);
4962         else
4963                 drm_dbg(plane->dev,
4964                         "[PLANE:%d] PSR SU dirty rect at (%d, %d) size (%d, %d)",
4965                         plane->base.id, x, y, width, height);
4966
4967 out:
4968         (*i)++;
4969 }
4970
4971 /**
4972  * fill_dc_dirty_rects() - Fill DC dirty regions for PSR selective updates
4973  *
4974  * @plane: DRM plane containing dirty regions that need to be flushed to the eDP
4975  *         remote fb
4976  * @old_plane_state: Old state of @plane
4977  * @new_plane_state: New state of @plane
4978  * @crtc_state: New state of CRTC connected to the @plane
4979  * @flip_addrs: DC flip tracking struct, which also tracts dirty rects
4980  *
4981  * For PSR SU, DC informs the DMUB uController of dirty rectangle regions
4982  * (referred to as "damage clips" in DRM nomenclature) that require updating on
4983  * the eDP remote buffer. The responsibility of specifying the dirty regions is
4984  * amdgpu_dm's.
4985  *
4986  * A damage-aware DRM client should fill the FB_DAMAGE_CLIPS property on the
4987  * plane with regions that require flushing to the eDP remote buffer. In
4988  * addition, certain use cases - such as cursor and multi-plane overlay (MPO) -
4989  * implicitly provide damage clips without any client support via the plane
4990  * bounds.
4991  */
4992 static void fill_dc_dirty_rects(struct drm_plane *plane,
4993                                 struct drm_plane_state *old_plane_state,
4994                                 struct drm_plane_state *new_plane_state,
4995                                 struct drm_crtc_state *crtc_state,
4996                                 struct dc_flip_addrs *flip_addrs)
4997 {
4998         struct dm_crtc_state *dm_crtc_state = to_dm_crtc_state(crtc_state);
4999         struct rect *dirty_rects = flip_addrs->dirty_rects;
5000         u32 num_clips;
5001         struct drm_mode_rect *clips;
5002         bool bb_changed;
5003         bool fb_changed;
5004         u32 i = 0;
5005
5006         /*
5007          * Cursor plane has it's own dirty rect update interface. See
5008          * dcn10_dmub_update_cursor_data and dmub_cmd_update_cursor_info_data
5009          */
5010         if (plane->type == DRM_PLANE_TYPE_CURSOR)
5011                 return;
5012
5013         num_clips = drm_plane_get_damage_clips_count(new_plane_state);
5014         clips = drm_plane_get_damage_clips(new_plane_state);
5015
5016         if (!dm_crtc_state->mpo_requested) {
5017                 if (!num_clips || num_clips > DC_MAX_DIRTY_RECTS)
5018                         goto ffu;
5019
5020                 for (; flip_addrs->dirty_rect_count < num_clips; clips++)
5021                         fill_dc_dirty_rect(new_plane_state->plane,
5022                                            &dirty_rects[i], clips->x1,
5023                                            clips->y1, clips->x2 - clips->x1,
5024                                            clips->y2 - clips->y1,
5025                                            &flip_addrs->dirty_rect_count,
5026                                            false);
5027                 return;
5028         }
5029
5030         /*
5031          * MPO is requested. Add entire plane bounding box to dirty rects if
5032          * flipped to or damaged.
5033          *
5034          * If plane is moved or resized, also add old bounding box to dirty
5035          * rects.
5036          */
5037         fb_changed = old_plane_state->fb->base.id !=
5038                      new_plane_state->fb->base.id;
5039         bb_changed = (old_plane_state->crtc_x != new_plane_state->crtc_x ||
5040                       old_plane_state->crtc_y != new_plane_state->crtc_y ||
5041                       old_plane_state->crtc_w != new_plane_state->crtc_w ||
5042                       old_plane_state->crtc_h != new_plane_state->crtc_h);
5043
5044         drm_dbg(plane->dev,
5045                 "[PLANE:%d] PSR bb_changed:%d fb_changed:%d num_clips:%d\n",
5046                 new_plane_state->plane->base.id,
5047                 bb_changed, fb_changed, num_clips);
5048
5049         if (bb_changed) {
5050                 fill_dc_dirty_rect(new_plane_state->plane, &dirty_rects[i],
5051                                    new_plane_state->crtc_x,
5052                                    new_plane_state->crtc_y,
5053                                    new_plane_state->crtc_w,
5054                                    new_plane_state->crtc_h, &i, false);
5055
5056                 /* Add old plane bounding-box if plane is moved or resized */
5057                 fill_dc_dirty_rect(new_plane_state->plane, &dirty_rects[i],
5058                                    old_plane_state->crtc_x,
5059                                    old_plane_state->crtc_y,
5060                                    old_plane_state->crtc_w,
5061                                    old_plane_state->crtc_h, &i, false);
5062         }
5063
5064         if (num_clips) {
5065                 for (; i < num_clips; clips++)
5066                         fill_dc_dirty_rect(new_plane_state->plane,
5067                                            &dirty_rects[i], clips->x1,
5068                                            clips->y1, clips->x2 - clips->x1,
5069                                            clips->y2 - clips->y1, &i, false);
5070         } else if (fb_changed && !bb_changed) {
5071                 fill_dc_dirty_rect(new_plane_state->plane, &dirty_rects[i],
5072                                    new_plane_state->crtc_x,
5073                                    new_plane_state->crtc_y,
5074                                    new_plane_state->crtc_w,
5075                                    new_plane_state->crtc_h, &i, false);
5076         }
5077
5078         if (i > DC_MAX_DIRTY_RECTS)
5079                 goto ffu;
5080
5081         flip_addrs->dirty_rect_count = i;
5082         return;
5083
5084 ffu:
5085         fill_dc_dirty_rect(new_plane_state->plane, &dirty_rects[0], 0, 0,
5086                            dm_crtc_state->base.mode.crtc_hdisplay,
5087                            dm_crtc_state->base.mode.crtc_vdisplay,
5088                            &flip_addrs->dirty_rect_count, true);
5089 }
5090
5091 static void update_stream_scaling_settings(const struct drm_display_mode *mode,
5092                                            const struct dm_connector_state *dm_state,
5093                                            struct dc_stream_state *stream)
5094 {
5095         enum amdgpu_rmx_type rmx_type;
5096
5097         struct rect src = { 0 }; /* viewport in composition space*/
5098         struct rect dst = { 0 }; /* stream addressable area */
5099
5100         /* no mode. nothing to be done */
5101         if (!mode)
5102                 return;
5103
5104         /* Full screen scaling by default */
5105         src.width = mode->hdisplay;
5106         src.height = mode->vdisplay;
5107         dst.width = stream->timing.h_addressable;
5108         dst.height = stream->timing.v_addressable;
5109
5110         if (dm_state) {
5111                 rmx_type = dm_state->scaling;
5112                 if (rmx_type == RMX_ASPECT || rmx_type == RMX_OFF) {
5113                         if (src.width * dst.height <
5114                                         src.height * dst.width) {
5115                                 /* height needs less upscaling/more downscaling */
5116                                 dst.width = src.width *
5117                                                 dst.height / src.height;
5118                         } else {
5119                                 /* width needs less upscaling/more downscaling */
5120                                 dst.height = src.height *
5121                                                 dst.width / src.width;
5122                         }
5123                 } else if (rmx_type == RMX_CENTER) {
5124                         dst = src;
5125                 }
5126
5127                 dst.x = (stream->timing.h_addressable - dst.width) / 2;
5128                 dst.y = (stream->timing.v_addressable - dst.height) / 2;
5129
5130                 if (dm_state->underscan_enable) {
5131                         dst.x += dm_state->underscan_hborder / 2;
5132                         dst.y += dm_state->underscan_vborder / 2;
5133                         dst.width -= dm_state->underscan_hborder;
5134                         dst.height -= dm_state->underscan_vborder;
5135                 }
5136         }
5137
5138         stream->src = src;
5139         stream->dst = dst;
5140
5141         DRM_DEBUG_KMS("Destination Rectangle x:%d  y:%d  width:%d  height:%d\n",
5142                       dst.x, dst.y, dst.width, dst.height);
5143
5144 }
5145
5146 static enum dc_color_depth
5147 convert_color_depth_from_display_info(const struct drm_connector *connector,
5148                                       bool is_y420, int requested_bpc)
5149 {
5150         u8 bpc;
5151
5152         if (is_y420) {
5153                 bpc = 8;
5154
5155                 /* Cap display bpc based on HDMI 2.0 HF-VSDB */
5156                 if (connector->display_info.hdmi.y420_dc_modes & DRM_EDID_YCBCR420_DC_48)
5157                         bpc = 16;
5158                 else if (connector->display_info.hdmi.y420_dc_modes & DRM_EDID_YCBCR420_DC_36)
5159                         bpc = 12;
5160                 else if (connector->display_info.hdmi.y420_dc_modes & DRM_EDID_YCBCR420_DC_30)
5161                         bpc = 10;
5162         } else {
5163                 bpc = (uint8_t)connector->display_info.bpc;
5164                 /* Assume 8 bpc by default if no bpc is specified. */
5165                 bpc = bpc ? bpc : 8;
5166         }
5167
5168         if (requested_bpc > 0) {
5169                 /*
5170                  * Cap display bpc based on the user requested value.
5171                  *
5172                  * The value for state->max_bpc may not correctly updated
5173                  * depending on when the connector gets added to the state
5174                  * or if this was called outside of atomic check, so it
5175                  * can't be used directly.
5176                  */
5177                 bpc = min_t(u8, bpc, requested_bpc);
5178
5179                 /* Round down to the nearest even number. */
5180                 bpc = bpc - (bpc & 1);
5181         }
5182
5183         switch (bpc) {
5184         case 0:
5185                 /*
5186                  * Temporary Work around, DRM doesn't parse color depth for
5187                  * EDID revision before 1.4
5188                  * TODO: Fix edid parsing
5189                  */
5190                 return COLOR_DEPTH_888;
5191         case 6:
5192                 return COLOR_DEPTH_666;
5193         case 8:
5194                 return COLOR_DEPTH_888;
5195         case 10:
5196                 return COLOR_DEPTH_101010;
5197         case 12:
5198                 return COLOR_DEPTH_121212;
5199         case 14:
5200                 return COLOR_DEPTH_141414;
5201         case 16:
5202                 return COLOR_DEPTH_161616;
5203         default:
5204                 return COLOR_DEPTH_UNDEFINED;
5205         }
5206 }
5207
5208 static enum dc_aspect_ratio
5209 get_aspect_ratio(const struct drm_display_mode *mode_in)
5210 {
5211         /* 1-1 mapping, since both enums follow the HDMI spec. */
5212         return (enum dc_aspect_ratio) mode_in->picture_aspect_ratio;
5213 }
5214
5215 static enum dc_color_space
5216 get_output_color_space(const struct dc_crtc_timing *dc_crtc_timing)
5217 {
5218         enum dc_color_space color_space = COLOR_SPACE_SRGB;
5219
5220         switch (dc_crtc_timing->pixel_encoding) {
5221         case PIXEL_ENCODING_YCBCR422:
5222         case PIXEL_ENCODING_YCBCR444:
5223         case PIXEL_ENCODING_YCBCR420:
5224         {
5225                 /*
5226                  * 27030khz is the separation point between HDTV and SDTV
5227                  * according to HDMI spec, we use YCbCr709 and YCbCr601
5228                  * respectively
5229                  */
5230                 if (dc_crtc_timing->pix_clk_100hz > 270300) {
5231                         if (dc_crtc_timing->flags.Y_ONLY)
5232                                 color_space =
5233                                         COLOR_SPACE_YCBCR709_LIMITED;
5234                         else
5235                                 color_space = COLOR_SPACE_YCBCR709;
5236                 } else {
5237                         if (dc_crtc_timing->flags.Y_ONLY)
5238                                 color_space =
5239                                         COLOR_SPACE_YCBCR601_LIMITED;
5240                         else
5241                                 color_space = COLOR_SPACE_YCBCR601;
5242                 }
5243
5244         }
5245         break;
5246         case PIXEL_ENCODING_RGB:
5247                 color_space = COLOR_SPACE_SRGB;
5248                 break;
5249
5250         default:
5251                 WARN_ON(1);
5252                 break;
5253         }
5254
5255         return color_space;
5256 }
5257
5258 static bool adjust_colour_depth_from_display_info(
5259         struct dc_crtc_timing *timing_out,
5260         const struct drm_display_info *info)
5261 {
5262         enum dc_color_depth depth = timing_out->display_color_depth;
5263         int normalized_clk;
5264         do {
5265                 normalized_clk = timing_out->pix_clk_100hz / 10;
5266                 /* YCbCr 4:2:0 requires additional adjustment of 1/2 */
5267                 if (timing_out->pixel_encoding == PIXEL_ENCODING_YCBCR420)
5268                         normalized_clk /= 2;
5269                 /* Adjusting pix clock following on HDMI spec based on colour depth */
5270                 switch (depth) {
5271                 case COLOR_DEPTH_888:
5272                         break;
5273                 case COLOR_DEPTH_101010:
5274                         normalized_clk = (normalized_clk * 30) / 24;
5275                         break;
5276                 case COLOR_DEPTH_121212:
5277                         normalized_clk = (normalized_clk * 36) / 24;
5278                         break;
5279                 case COLOR_DEPTH_161616:
5280                         normalized_clk = (normalized_clk * 48) / 24;
5281                         break;
5282                 default:
5283                         /* The above depths are the only ones valid for HDMI. */
5284                         return false;
5285                 }
5286                 if (normalized_clk <= info->max_tmds_clock) {
5287                         timing_out->display_color_depth = depth;
5288                         return true;
5289                 }
5290         } while (--depth > COLOR_DEPTH_666);
5291         return false;
5292 }
5293
5294 static void fill_stream_properties_from_drm_display_mode(
5295         struct dc_stream_state *stream,
5296         const struct drm_display_mode *mode_in,
5297         const struct drm_connector *connector,
5298         const struct drm_connector_state *connector_state,
5299         const struct dc_stream_state *old_stream,
5300         int requested_bpc)
5301 {
5302         struct dc_crtc_timing *timing_out = &stream->timing;
5303         const struct drm_display_info *info = &connector->display_info;
5304         struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
5305         struct hdmi_vendor_infoframe hv_frame;
5306         struct hdmi_avi_infoframe avi_frame;
5307
5308         memset(&hv_frame, 0, sizeof(hv_frame));
5309         memset(&avi_frame, 0, sizeof(avi_frame));
5310
5311         timing_out->h_border_left = 0;
5312         timing_out->h_border_right = 0;
5313         timing_out->v_border_top = 0;
5314         timing_out->v_border_bottom = 0;
5315         /* TODO: un-hardcode */
5316         if (drm_mode_is_420_only(info, mode_in)
5317                         && stream->signal == SIGNAL_TYPE_HDMI_TYPE_A)
5318                 timing_out->pixel_encoding = PIXEL_ENCODING_YCBCR420;
5319         else if (drm_mode_is_420_also(info, mode_in)
5320                         && aconnector->force_yuv420_output)
5321                 timing_out->pixel_encoding = PIXEL_ENCODING_YCBCR420;
5322         else if ((connector->display_info.color_formats & DRM_COLOR_FORMAT_YCBCR444)
5323                         && stream->signal == SIGNAL_TYPE_HDMI_TYPE_A)
5324                 timing_out->pixel_encoding = PIXEL_ENCODING_YCBCR444;
5325         else
5326                 timing_out->pixel_encoding = PIXEL_ENCODING_RGB;
5327
5328         timing_out->timing_3d_format = TIMING_3D_FORMAT_NONE;
5329         timing_out->display_color_depth = convert_color_depth_from_display_info(
5330                 connector,
5331                 (timing_out->pixel_encoding == PIXEL_ENCODING_YCBCR420),
5332                 requested_bpc);
5333         timing_out->scan_type = SCANNING_TYPE_NODATA;
5334         timing_out->hdmi_vic = 0;
5335
5336         if (old_stream) {
5337                 timing_out->vic = old_stream->timing.vic;
5338                 timing_out->flags.HSYNC_POSITIVE_POLARITY = old_stream->timing.flags.HSYNC_POSITIVE_POLARITY;
5339                 timing_out->flags.VSYNC_POSITIVE_POLARITY = old_stream->timing.flags.VSYNC_POSITIVE_POLARITY;
5340         } else {
5341                 timing_out->vic = drm_match_cea_mode(mode_in);
5342                 if (mode_in->flags & DRM_MODE_FLAG_PHSYNC)
5343                         timing_out->flags.HSYNC_POSITIVE_POLARITY = 1;
5344                 if (mode_in->flags & DRM_MODE_FLAG_PVSYNC)
5345                         timing_out->flags.VSYNC_POSITIVE_POLARITY = 1;
5346         }
5347
5348         if (stream->signal == SIGNAL_TYPE_HDMI_TYPE_A) {
5349                 drm_hdmi_avi_infoframe_from_display_mode(&avi_frame, (struct drm_connector *)connector, mode_in);
5350                 timing_out->vic = avi_frame.video_code;
5351                 drm_hdmi_vendor_infoframe_from_display_mode(&hv_frame, (struct drm_connector *)connector, mode_in);
5352                 timing_out->hdmi_vic = hv_frame.vic;
5353         }
5354
5355         if (is_freesync_video_mode(mode_in, aconnector)) {
5356                 timing_out->h_addressable = mode_in->hdisplay;
5357                 timing_out->h_total = mode_in->htotal;
5358                 timing_out->h_sync_width = mode_in->hsync_end - mode_in->hsync_start;
5359                 timing_out->h_front_porch = mode_in->hsync_start - mode_in->hdisplay;
5360                 timing_out->v_total = mode_in->vtotal;
5361                 timing_out->v_addressable = mode_in->vdisplay;
5362                 timing_out->v_front_porch = mode_in->vsync_start - mode_in->vdisplay;
5363                 timing_out->v_sync_width = mode_in->vsync_end - mode_in->vsync_start;
5364                 timing_out->pix_clk_100hz = mode_in->clock * 10;
5365         } else {
5366                 timing_out->h_addressable = mode_in->crtc_hdisplay;
5367                 timing_out->h_total = mode_in->crtc_htotal;
5368                 timing_out->h_sync_width = mode_in->crtc_hsync_end - mode_in->crtc_hsync_start;
5369                 timing_out->h_front_porch = mode_in->crtc_hsync_start - mode_in->crtc_hdisplay;
5370                 timing_out->v_total = mode_in->crtc_vtotal;
5371                 timing_out->v_addressable = mode_in->crtc_vdisplay;
5372                 timing_out->v_front_porch = mode_in->crtc_vsync_start - mode_in->crtc_vdisplay;
5373                 timing_out->v_sync_width = mode_in->crtc_vsync_end - mode_in->crtc_vsync_start;
5374                 timing_out->pix_clk_100hz = mode_in->crtc_clock * 10;
5375         }
5376
5377         timing_out->aspect_ratio = get_aspect_ratio(mode_in);
5378
5379         stream->out_transfer_func->type = TF_TYPE_PREDEFINED;
5380         stream->out_transfer_func->tf = TRANSFER_FUNCTION_SRGB;
5381         if (stream->signal == SIGNAL_TYPE_HDMI_TYPE_A) {
5382                 if (!adjust_colour_depth_from_display_info(timing_out, info) &&
5383                     drm_mode_is_420_also(info, mode_in) &&
5384                     timing_out->pixel_encoding != PIXEL_ENCODING_YCBCR420) {
5385                         timing_out->pixel_encoding = PIXEL_ENCODING_YCBCR420;
5386                         adjust_colour_depth_from_display_info(timing_out, info);
5387                 }
5388         }
5389
5390         stream->output_color_space = get_output_color_space(timing_out);
5391 }
5392
5393 static void fill_audio_info(struct audio_info *audio_info,
5394                             const struct drm_connector *drm_connector,
5395                             const struct dc_sink *dc_sink)
5396 {
5397         int i = 0;
5398         int cea_revision = 0;
5399         const struct dc_edid_caps *edid_caps = &dc_sink->edid_caps;
5400
5401         audio_info->manufacture_id = edid_caps->manufacturer_id;
5402         audio_info->product_id = edid_caps->product_id;
5403
5404         cea_revision = drm_connector->display_info.cea_rev;
5405
5406         strscpy(audio_info->display_name,
5407                 edid_caps->display_name,
5408                 AUDIO_INFO_DISPLAY_NAME_SIZE_IN_CHARS);
5409
5410         if (cea_revision >= 3) {
5411                 audio_info->mode_count = edid_caps->audio_mode_count;
5412
5413                 for (i = 0; i < audio_info->mode_count; ++i) {
5414                         audio_info->modes[i].format_code =
5415                                         (enum audio_format_code)
5416                                         (edid_caps->audio_modes[i].format_code);
5417                         audio_info->modes[i].channel_count =
5418                                         edid_caps->audio_modes[i].channel_count;
5419                         audio_info->modes[i].sample_rates.all =
5420                                         edid_caps->audio_modes[i].sample_rate;
5421                         audio_info->modes[i].sample_size =
5422                                         edid_caps->audio_modes[i].sample_size;
5423                 }
5424         }
5425
5426         audio_info->flags.all = edid_caps->speaker_flags;
5427
5428         /* TODO: We only check for the progressive mode, check for interlace mode too */
5429         if (drm_connector->latency_present[0]) {
5430                 audio_info->video_latency = drm_connector->video_latency[0];
5431                 audio_info->audio_latency = drm_connector->audio_latency[0];
5432         }
5433
5434         /* TODO: For DP, video and audio latency should be calculated from DPCD caps */
5435
5436 }
5437
5438 static void
5439 copy_crtc_timing_for_drm_display_mode(const struct drm_display_mode *src_mode,
5440                                       struct drm_display_mode *dst_mode)
5441 {
5442         dst_mode->crtc_hdisplay = src_mode->crtc_hdisplay;
5443         dst_mode->crtc_vdisplay = src_mode->crtc_vdisplay;
5444         dst_mode->crtc_clock = src_mode->crtc_clock;
5445         dst_mode->crtc_hblank_start = src_mode->crtc_hblank_start;
5446         dst_mode->crtc_hblank_end = src_mode->crtc_hblank_end;
5447         dst_mode->crtc_hsync_start =  src_mode->crtc_hsync_start;
5448         dst_mode->crtc_hsync_end = src_mode->crtc_hsync_end;
5449         dst_mode->crtc_htotal = src_mode->crtc_htotal;
5450         dst_mode->crtc_hskew = src_mode->crtc_hskew;
5451         dst_mode->crtc_vblank_start = src_mode->crtc_vblank_start;
5452         dst_mode->crtc_vblank_end = src_mode->crtc_vblank_end;
5453         dst_mode->crtc_vsync_start = src_mode->crtc_vsync_start;
5454         dst_mode->crtc_vsync_end = src_mode->crtc_vsync_end;
5455         dst_mode->crtc_vtotal = src_mode->crtc_vtotal;
5456 }
5457
5458 static void
5459 decide_crtc_timing_for_drm_display_mode(struct drm_display_mode *drm_mode,
5460                                         const struct drm_display_mode *native_mode,
5461                                         bool scale_enabled)
5462 {
5463         if (scale_enabled) {
5464                 copy_crtc_timing_for_drm_display_mode(native_mode, drm_mode);
5465         } else if (native_mode->clock == drm_mode->clock &&
5466                         native_mode->htotal == drm_mode->htotal &&
5467                         native_mode->vtotal == drm_mode->vtotal) {
5468                 copy_crtc_timing_for_drm_display_mode(native_mode, drm_mode);
5469         } else {
5470                 /* no scaling nor amdgpu inserted, no need to patch */
5471         }
5472 }
5473
5474 static struct dc_sink *
5475 create_fake_sink(struct amdgpu_dm_connector *aconnector)
5476 {
5477         struct dc_sink_init_data sink_init_data = { 0 };
5478         struct dc_sink *sink = NULL;
5479         sink_init_data.link = aconnector->dc_link;
5480         sink_init_data.sink_signal = aconnector->dc_link->connector_signal;
5481
5482         sink = dc_sink_create(&sink_init_data);
5483         if (!sink) {
5484                 DRM_ERROR("Failed to create sink!\n");
5485                 return NULL;
5486         }
5487         sink->sink_signal = SIGNAL_TYPE_VIRTUAL;
5488
5489         return sink;
5490 }
5491
5492 static void set_multisync_trigger_params(
5493                 struct dc_stream_state *stream)
5494 {
5495         struct dc_stream_state *master = NULL;
5496
5497         if (stream->triggered_crtc_reset.enabled) {
5498                 master = stream->triggered_crtc_reset.event_source;
5499                 stream->triggered_crtc_reset.event =
5500                         master->timing.flags.VSYNC_POSITIVE_POLARITY ?
5501                         CRTC_EVENT_VSYNC_RISING : CRTC_EVENT_VSYNC_FALLING;
5502                 stream->triggered_crtc_reset.delay = TRIGGER_DELAY_NEXT_PIXEL;
5503         }
5504 }
5505
5506 static void set_master_stream(struct dc_stream_state *stream_set[],
5507                               int stream_count)
5508 {
5509         int j, highest_rfr = 0, master_stream = 0;
5510
5511         for (j = 0;  j < stream_count; j++) {
5512                 if (stream_set[j] && stream_set[j]->triggered_crtc_reset.enabled) {
5513                         int refresh_rate = 0;
5514
5515                         refresh_rate = (stream_set[j]->timing.pix_clk_100hz*100)/
5516                                 (stream_set[j]->timing.h_total*stream_set[j]->timing.v_total);
5517                         if (refresh_rate > highest_rfr) {
5518                                 highest_rfr = refresh_rate;
5519                                 master_stream = j;
5520                         }
5521                 }
5522         }
5523         for (j = 0;  j < stream_count; j++) {
5524                 if (stream_set[j])
5525                         stream_set[j]->triggered_crtc_reset.event_source = stream_set[master_stream];
5526         }
5527 }
5528
5529 static void dm_enable_per_frame_crtc_master_sync(struct dc_state *context)
5530 {
5531         int i = 0;
5532         struct dc_stream_state *stream;
5533
5534         if (context->stream_count < 2)
5535                 return;
5536         for (i = 0; i < context->stream_count ; i++) {
5537                 if (!context->streams[i])
5538                         continue;
5539                 /*
5540                  * TODO: add a function to read AMD VSDB bits and set
5541                  * crtc_sync_master.multi_sync_enabled flag
5542                  * For now it's set to false
5543                  */
5544         }
5545
5546         set_master_stream(context->streams, context->stream_count);
5547
5548         for (i = 0; i < context->stream_count ; i++) {
5549                 stream = context->streams[i];
5550
5551                 if (!stream)
5552                         continue;
5553
5554                 set_multisync_trigger_params(stream);
5555         }
5556 }
5557
5558 /**
5559  * DOC: FreeSync Video
5560  *
5561  * When a userspace application wants to play a video, the content follows a
5562  * standard format definition that usually specifies the FPS for that format.
5563  * The below list illustrates some video format and the expected FPS,
5564  * respectively:
5565  *
5566  * - TV/NTSC (23.976 FPS)
5567  * - Cinema (24 FPS)
5568  * - TV/PAL (25 FPS)
5569  * - TV/NTSC (29.97 FPS)
5570  * - TV/NTSC (30 FPS)
5571  * - Cinema HFR (48 FPS)
5572  * - TV/PAL (50 FPS)
5573  * - Commonly used (60 FPS)
5574  * - Multiples of 24 (48,72,96 FPS)
5575  *
5576  * The list of standards video format is not huge and can be added to the
5577  * connector modeset list beforehand. With that, userspace can leverage
5578  * FreeSync to extends the front porch in order to attain the target refresh
5579  * rate. Such a switch will happen seamlessly, without screen blanking or
5580  * reprogramming of the output in any other way. If the userspace requests a
5581  * modesetting change compatible with FreeSync modes that only differ in the
5582  * refresh rate, DC will skip the full update and avoid blink during the
5583  * transition. For example, the video player can change the modesetting from
5584  * 60Hz to 30Hz for playing TV/NTSC content when it goes full screen without
5585  * causing any display blink. This same concept can be applied to a mode
5586  * setting change.
5587  */
5588 static struct drm_display_mode *
5589 get_highest_refresh_rate_mode(struct amdgpu_dm_connector *aconnector,
5590                 bool use_probed_modes)
5591 {
5592         struct drm_display_mode *m, *m_pref = NULL;
5593         u16 current_refresh, highest_refresh;
5594         struct list_head *list_head = use_probed_modes ?
5595                 &aconnector->base.probed_modes :
5596                 &aconnector->base.modes;
5597
5598         if (aconnector->freesync_vid_base.clock != 0)
5599                 return &aconnector->freesync_vid_base;
5600
5601         /* Find the preferred mode */
5602         list_for_each_entry (m, list_head, head) {
5603                 if (m->type & DRM_MODE_TYPE_PREFERRED) {
5604                         m_pref = m;
5605                         break;
5606                 }
5607         }
5608
5609         if (!m_pref) {
5610                 /* Probably an EDID with no preferred mode. Fallback to first entry */
5611                 m_pref = list_first_entry_or_null(
5612                                 &aconnector->base.modes, struct drm_display_mode, head);
5613                 if (!m_pref) {
5614                         DRM_DEBUG_DRIVER("No preferred mode found in EDID\n");
5615                         return NULL;
5616                 }
5617         }
5618
5619         highest_refresh = drm_mode_vrefresh(m_pref);
5620
5621         /*
5622          * Find the mode with highest refresh rate with same resolution.
5623          * For some monitors, preferred mode is not the mode with highest
5624          * supported refresh rate.
5625          */
5626         list_for_each_entry (m, list_head, head) {
5627                 current_refresh  = drm_mode_vrefresh(m);
5628
5629                 if (m->hdisplay == m_pref->hdisplay &&
5630                     m->vdisplay == m_pref->vdisplay &&
5631                     highest_refresh < current_refresh) {
5632                         highest_refresh = current_refresh;
5633                         m_pref = m;
5634                 }
5635         }
5636
5637         drm_mode_copy(&aconnector->freesync_vid_base, m_pref);
5638         return m_pref;
5639 }
5640
5641 static bool is_freesync_video_mode(const struct drm_display_mode *mode,
5642                 struct amdgpu_dm_connector *aconnector)
5643 {
5644         struct drm_display_mode *high_mode;
5645         int timing_diff;
5646
5647         high_mode = get_highest_refresh_rate_mode(aconnector, false);
5648         if (!high_mode || !mode)
5649                 return false;
5650
5651         timing_diff = high_mode->vtotal - mode->vtotal;
5652
5653         if (high_mode->clock == 0 || high_mode->clock != mode->clock ||
5654             high_mode->hdisplay != mode->hdisplay ||
5655             high_mode->vdisplay != mode->vdisplay ||
5656             high_mode->hsync_start != mode->hsync_start ||
5657             high_mode->hsync_end != mode->hsync_end ||
5658             high_mode->htotal != mode->htotal ||
5659             high_mode->hskew != mode->hskew ||
5660             high_mode->vscan != mode->vscan ||
5661             high_mode->vsync_start - mode->vsync_start != timing_diff ||
5662             high_mode->vsync_end - mode->vsync_end != timing_diff)
5663                 return false;
5664         else
5665                 return true;
5666 }
5667
5668 #if defined(CONFIG_DRM_AMD_DC_DCN)
5669 static void update_dsc_caps(struct amdgpu_dm_connector *aconnector,
5670                             struct dc_sink *sink, struct dc_stream_state *stream,
5671                             struct dsc_dec_dpcd_caps *dsc_caps)
5672 {
5673         stream->timing.flags.DSC = 0;
5674         dsc_caps->is_dsc_supported = false;
5675
5676         if (aconnector->dc_link && (sink->sink_signal == SIGNAL_TYPE_DISPLAY_PORT ||
5677             sink->sink_signal == SIGNAL_TYPE_EDP)) {
5678                 if (sink->link->dpcd_caps.dongle_type == DISPLAY_DONGLE_NONE ||
5679                         sink->link->dpcd_caps.dongle_type == DISPLAY_DONGLE_DP_HDMI_CONVERTER)
5680                         dc_dsc_parse_dsc_dpcd(aconnector->dc_link->ctx->dc,
5681                                 aconnector->dc_link->dpcd_caps.dsc_caps.dsc_basic_caps.raw,
5682                                 aconnector->dc_link->dpcd_caps.dsc_caps.dsc_branch_decoder_caps.raw,
5683                                 dsc_caps);
5684         }
5685 }
5686
5687
5688 static void apply_dsc_policy_for_edp(struct amdgpu_dm_connector *aconnector,
5689                                     struct dc_sink *sink, struct dc_stream_state *stream,
5690                                     struct dsc_dec_dpcd_caps *dsc_caps,
5691                                     uint32_t max_dsc_target_bpp_limit_override)
5692 {
5693         const struct dc_link_settings *verified_link_cap = NULL;
5694         u32 link_bw_in_kbps;
5695         u32 edp_min_bpp_x16, edp_max_bpp_x16;
5696         struct dc *dc = sink->ctx->dc;
5697         struct dc_dsc_bw_range bw_range = {0};
5698         struct dc_dsc_config dsc_cfg = {0};
5699
5700         verified_link_cap = dc_link_get_link_cap(stream->link);
5701         link_bw_in_kbps = dc_link_bandwidth_kbps(stream->link, verified_link_cap);
5702         edp_min_bpp_x16 = 8 * 16;
5703         edp_max_bpp_x16 = 8 * 16;
5704
5705         if (edp_max_bpp_x16 > dsc_caps->edp_max_bits_per_pixel)
5706                 edp_max_bpp_x16 = dsc_caps->edp_max_bits_per_pixel;
5707
5708         if (edp_max_bpp_x16 < edp_min_bpp_x16)
5709                 edp_min_bpp_x16 = edp_max_bpp_x16;
5710
5711         if (dc_dsc_compute_bandwidth_range(dc->res_pool->dscs[0],
5712                                 dc->debug.dsc_min_slice_height_override,
5713                                 edp_min_bpp_x16, edp_max_bpp_x16,
5714                                 dsc_caps,
5715                                 &stream->timing,
5716                                 &bw_range)) {
5717
5718                 if (bw_range.max_kbps < link_bw_in_kbps) {
5719                         if (dc_dsc_compute_config(dc->res_pool->dscs[0],
5720                                         dsc_caps,
5721                                         dc->debug.dsc_min_slice_height_override,
5722                                         max_dsc_target_bpp_limit_override,
5723                                         0,
5724                                         &stream->timing,
5725                                         &dsc_cfg)) {
5726                                 stream->timing.dsc_cfg = dsc_cfg;
5727                                 stream->timing.flags.DSC = 1;
5728                                 stream->timing.dsc_cfg.bits_per_pixel = edp_max_bpp_x16;
5729                         }
5730                         return;
5731                 }
5732         }
5733
5734         if (dc_dsc_compute_config(dc->res_pool->dscs[0],
5735                                 dsc_caps,
5736                                 dc->debug.dsc_min_slice_height_override,
5737                                 max_dsc_target_bpp_limit_override,
5738                                 link_bw_in_kbps,
5739                                 &stream->timing,
5740                                 &dsc_cfg)) {
5741                 stream->timing.dsc_cfg = dsc_cfg;
5742                 stream->timing.flags.DSC = 1;
5743         }
5744 }
5745
5746
5747 static void apply_dsc_policy_for_stream(struct amdgpu_dm_connector *aconnector,
5748                                         struct dc_sink *sink, struct dc_stream_state *stream,
5749                                         struct dsc_dec_dpcd_caps *dsc_caps)
5750 {
5751         struct drm_connector *drm_connector = &aconnector->base;
5752         u32 link_bandwidth_kbps;
5753         struct dc *dc = sink->ctx->dc;
5754         u32 max_supported_bw_in_kbps, timing_bw_in_kbps;
5755         u32 dsc_max_supported_bw_in_kbps;
5756         u32 max_dsc_target_bpp_limit_override =
5757                 drm_connector->display_info.max_dsc_bpp;
5758
5759         link_bandwidth_kbps = dc_link_bandwidth_kbps(aconnector->dc_link,
5760                                                         dc_link_get_link_cap(aconnector->dc_link));
5761
5762         /* Set DSC policy according to dsc_clock_en */
5763         dc_dsc_policy_set_enable_dsc_when_not_needed(
5764                 aconnector->dsc_settings.dsc_force_enable == DSC_CLK_FORCE_ENABLE);
5765
5766         if (aconnector->dc_link && sink->sink_signal == SIGNAL_TYPE_EDP &&
5767             !aconnector->dc_link->panel_config.dsc.disable_dsc_edp &&
5768             dc->caps.edp_dsc_support && aconnector->dsc_settings.dsc_force_enable != DSC_CLK_FORCE_DISABLE) {
5769
5770                 apply_dsc_policy_for_edp(aconnector, sink, stream, dsc_caps, max_dsc_target_bpp_limit_override);
5771
5772         } else if (aconnector->dc_link && sink->sink_signal == SIGNAL_TYPE_DISPLAY_PORT) {
5773                 if (sink->link->dpcd_caps.dongle_type == DISPLAY_DONGLE_NONE) {
5774                         if (dc_dsc_compute_config(aconnector->dc_link->ctx->dc->res_pool->dscs[0],
5775                                                 dsc_caps,
5776                                                 aconnector->dc_link->ctx->dc->debug.dsc_min_slice_height_override,
5777                                                 max_dsc_target_bpp_limit_override,
5778                                                 link_bandwidth_kbps,
5779                                                 &stream->timing,
5780                                                 &stream->timing.dsc_cfg)) {
5781                                 stream->timing.flags.DSC = 1;
5782                                 DRM_DEBUG_DRIVER("%s: [%s] DSC is selected from SST RX\n", __func__, drm_connector->name);
5783                         }
5784                 } else if (sink->link->dpcd_caps.dongle_type == DISPLAY_DONGLE_DP_HDMI_CONVERTER) {
5785                         timing_bw_in_kbps = dc_bandwidth_in_kbps_from_timing(&stream->timing);
5786                         max_supported_bw_in_kbps = link_bandwidth_kbps;
5787                         dsc_max_supported_bw_in_kbps = link_bandwidth_kbps;
5788
5789                         if (timing_bw_in_kbps > max_supported_bw_in_kbps &&
5790                                         max_supported_bw_in_kbps > 0 &&
5791                                         dsc_max_supported_bw_in_kbps > 0)
5792                                 if (dc_dsc_compute_config(aconnector->dc_link->ctx->dc->res_pool->dscs[0],
5793                                                 dsc_caps,
5794                                                 aconnector->dc_link->ctx->dc->debug.dsc_min_slice_height_override,
5795                                                 max_dsc_target_bpp_limit_override,
5796                                                 dsc_max_supported_bw_in_kbps,
5797                                                 &stream->timing,
5798                                                 &stream->timing.dsc_cfg)) {
5799                                         stream->timing.flags.DSC = 1;
5800                                         DRM_DEBUG_DRIVER("%s: [%s] DSC is selected from DP-HDMI PCON\n",
5801                                                                          __func__, drm_connector->name);
5802                                 }
5803                 }
5804         }
5805
5806         /* Overwrite the stream flag if DSC is enabled through debugfs */
5807         if (aconnector->dsc_settings.dsc_force_enable == DSC_CLK_FORCE_ENABLE)
5808                 stream->timing.flags.DSC = 1;
5809
5810         if (stream->timing.flags.DSC && aconnector->dsc_settings.dsc_num_slices_h)
5811                 stream->timing.dsc_cfg.num_slices_h = aconnector->dsc_settings.dsc_num_slices_h;
5812
5813         if (stream->timing.flags.DSC && aconnector->dsc_settings.dsc_num_slices_v)
5814                 stream->timing.dsc_cfg.num_slices_v = aconnector->dsc_settings.dsc_num_slices_v;
5815
5816         if (stream->timing.flags.DSC && aconnector->dsc_settings.dsc_bits_per_pixel)
5817                 stream->timing.dsc_cfg.bits_per_pixel = aconnector->dsc_settings.dsc_bits_per_pixel;
5818 }
5819 #endif /* CONFIG_DRM_AMD_DC_DCN */
5820
5821 static struct dc_stream_state *
5822 create_stream_for_sink(struct amdgpu_dm_connector *aconnector,
5823                        const struct drm_display_mode *drm_mode,
5824                        const struct dm_connector_state *dm_state,
5825                        const struct dc_stream_state *old_stream,
5826                        int requested_bpc)
5827 {
5828         struct drm_display_mode *preferred_mode = NULL;
5829         struct drm_connector *drm_connector;
5830         const struct drm_connector_state *con_state =
5831                 dm_state ? &dm_state->base : NULL;
5832         struct dc_stream_state *stream = NULL;
5833         struct drm_display_mode mode;
5834         struct drm_display_mode saved_mode;
5835         struct drm_display_mode *freesync_mode = NULL;
5836         bool native_mode_found = false;
5837         bool recalculate_timing = false;
5838         bool scale = dm_state ? (dm_state->scaling != RMX_OFF) : false;
5839         int mode_refresh;
5840         int preferred_refresh = 0;
5841         enum color_transfer_func tf = TRANSFER_FUNC_UNKNOWN;
5842 #if defined(CONFIG_DRM_AMD_DC_DCN)
5843         struct dsc_dec_dpcd_caps dsc_caps;
5844 #endif
5845
5846         struct dc_sink *sink = NULL;
5847
5848         drm_mode_init(&mode, drm_mode);
5849         memset(&saved_mode, 0, sizeof(saved_mode));
5850
5851         if (aconnector == NULL) {
5852                 DRM_ERROR("aconnector is NULL!\n");
5853                 return stream;
5854         }
5855
5856         drm_connector = &aconnector->base;
5857
5858         if (!aconnector->dc_sink) {
5859                 sink = create_fake_sink(aconnector);
5860                 if (!sink)
5861                         return stream;
5862         } else {
5863                 sink = aconnector->dc_sink;
5864                 dc_sink_retain(sink);
5865         }
5866
5867         stream = dc_create_stream_for_sink(sink);
5868
5869         if (stream == NULL) {
5870                 DRM_ERROR("Failed to create stream for sink!\n");
5871                 goto finish;
5872         }
5873
5874         stream->dm_stream_context = aconnector;
5875
5876         stream->timing.flags.LTE_340MCSC_SCRAMBLE =
5877                 drm_connector->display_info.hdmi.scdc.scrambling.low_rates;
5878
5879         list_for_each_entry(preferred_mode, &aconnector->base.modes, head) {
5880                 /* Search for preferred mode */
5881                 if (preferred_mode->type & DRM_MODE_TYPE_PREFERRED) {
5882                         native_mode_found = true;
5883                         break;
5884                 }
5885         }
5886         if (!native_mode_found)
5887                 preferred_mode = list_first_entry_or_null(
5888                                 &aconnector->base.modes,
5889                                 struct drm_display_mode,
5890                                 head);
5891
5892         mode_refresh = drm_mode_vrefresh(&mode);
5893
5894         if (preferred_mode == NULL) {
5895                 /*
5896                  * This may not be an error, the use case is when we have no
5897                  * usermode calls to reset and set mode upon hotplug. In this
5898                  * case, we call set mode ourselves to restore the previous mode
5899                  * and the modelist may not be filled in in time.
5900                  */
5901                 DRM_DEBUG_DRIVER("No preferred mode found\n");
5902         } else {
5903                 recalculate_timing = amdgpu_freesync_vid_mode &&
5904                                  is_freesync_video_mode(&mode, aconnector);
5905                 if (recalculate_timing) {
5906                         freesync_mode = get_highest_refresh_rate_mode(aconnector, false);
5907                         drm_mode_copy(&saved_mode, &mode);
5908                         drm_mode_copy(&mode, freesync_mode);
5909                 } else {
5910                         decide_crtc_timing_for_drm_display_mode(
5911                                         &mode, preferred_mode, scale);
5912
5913                         preferred_refresh = drm_mode_vrefresh(preferred_mode);
5914                 }
5915         }
5916
5917         if (recalculate_timing)
5918                 drm_mode_set_crtcinfo(&saved_mode, 0);
5919         else if (!dm_state)
5920                 drm_mode_set_crtcinfo(&mode, 0);
5921
5922         /*
5923         * If scaling is enabled and refresh rate didn't change
5924         * we copy the vic and polarities of the old timings
5925         */
5926         if (!scale || mode_refresh != preferred_refresh)
5927                 fill_stream_properties_from_drm_display_mode(
5928                         stream, &mode, &aconnector->base, con_state, NULL,
5929                         requested_bpc);
5930         else
5931                 fill_stream_properties_from_drm_display_mode(
5932                         stream, &mode, &aconnector->base, con_state, old_stream,
5933                         requested_bpc);
5934
5935         if (aconnector->timing_changed) {
5936                 DC_LOG_DEBUG("%s: overriding timing for automated test, bpc %d, changing to %d\n",
5937                                 __func__,
5938                                 stream->timing.display_color_depth,
5939                                 aconnector->timing_requested->display_color_depth);
5940                 stream->timing = *aconnector->timing_requested;
5941         }
5942
5943 #if defined(CONFIG_DRM_AMD_DC_DCN)
5944         /* SST DSC determination policy */
5945         update_dsc_caps(aconnector, sink, stream, &dsc_caps);
5946         if (aconnector->dsc_settings.dsc_force_enable != DSC_CLK_FORCE_DISABLE && dsc_caps.is_dsc_supported)
5947                 apply_dsc_policy_for_stream(aconnector, sink, stream, &dsc_caps);
5948 #endif
5949
5950         update_stream_scaling_settings(&mode, dm_state, stream);
5951
5952         fill_audio_info(
5953                 &stream->audio_info,
5954                 drm_connector,
5955                 sink);
5956
5957         update_stream_signal(stream, sink);
5958
5959         if (stream->signal == SIGNAL_TYPE_HDMI_TYPE_A)
5960                 mod_build_hf_vsif_infopacket(stream, &stream->vsp_infopacket);
5961
5962         if (stream->link->psr_settings.psr_feature_enabled) {
5963                 //
5964                 // should decide stream support vsc sdp colorimetry capability
5965                 // before building vsc info packet
5966                 //
5967                 stream->use_vsc_sdp_for_colorimetry = false;
5968                 if (aconnector->dc_sink->sink_signal == SIGNAL_TYPE_DISPLAY_PORT_MST) {
5969                         stream->use_vsc_sdp_for_colorimetry =
5970                                 aconnector->dc_sink->is_vsc_sdp_colorimetry_supported;
5971                 } else {
5972                         if (stream->link->dpcd_caps.dprx_feature.bits.VSC_SDP_COLORIMETRY_SUPPORTED)
5973                                 stream->use_vsc_sdp_for_colorimetry = true;
5974                 }
5975                 if (stream->out_transfer_func->tf == TRANSFER_FUNCTION_GAMMA22)
5976                         tf = TRANSFER_FUNC_GAMMA_22;
5977                 mod_build_vsc_infopacket(stream, &stream->vsc_infopacket, stream->output_color_space, tf);
5978                 aconnector->psr_skip_count = AMDGPU_DM_PSR_ENTRY_DELAY;
5979
5980         }
5981 finish:
5982         dc_sink_release(sink);
5983
5984         return stream;
5985 }
5986
5987 static enum drm_connector_status
5988 amdgpu_dm_connector_detect(struct drm_connector *connector, bool force)
5989 {
5990         bool connected;
5991         struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
5992
5993         /*
5994          * Notes:
5995          * 1. This interface is NOT called in context of HPD irq.
5996          * 2. This interface *is called* in context of user-mode ioctl. Which
5997          * makes it a bad place for *any* MST-related activity.
5998          */
5999
6000         if (aconnector->base.force == DRM_FORCE_UNSPECIFIED &&
6001             !aconnector->fake_enable)
6002                 connected = (aconnector->dc_sink != NULL);
6003         else
6004                 connected = (aconnector->base.force == DRM_FORCE_ON ||
6005                                 aconnector->base.force == DRM_FORCE_ON_DIGITAL);
6006
6007         update_subconnector_property(aconnector);
6008
6009         return (connected ? connector_status_connected :
6010                         connector_status_disconnected);
6011 }
6012
6013 int amdgpu_dm_connector_atomic_set_property(struct drm_connector *connector,
6014                                             struct drm_connector_state *connector_state,
6015                                             struct drm_property *property,
6016                                             uint64_t val)
6017 {
6018         struct drm_device *dev = connector->dev;
6019         struct amdgpu_device *adev = drm_to_adev(dev);
6020         struct dm_connector_state *dm_old_state =
6021                 to_dm_connector_state(connector->state);
6022         struct dm_connector_state *dm_new_state =
6023                 to_dm_connector_state(connector_state);
6024
6025         int ret = -EINVAL;
6026
6027         if (property == dev->mode_config.scaling_mode_property) {
6028                 enum amdgpu_rmx_type rmx_type;
6029
6030                 switch (val) {
6031                 case DRM_MODE_SCALE_CENTER:
6032                         rmx_type = RMX_CENTER;
6033                         break;
6034                 case DRM_MODE_SCALE_ASPECT:
6035                         rmx_type = RMX_ASPECT;
6036                         break;
6037                 case DRM_MODE_SCALE_FULLSCREEN:
6038                         rmx_type = RMX_FULL;
6039                         break;
6040                 case DRM_MODE_SCALE_NONE:
6041                 default:
6042                         rmx_type = RMX_OFF;
6043                         break;
6044                 }
6045
6046                 if (dm_old_state->scaling == rmx_type)
6047                         return 0;
6048
6049                 dm_new_state->scaling = rmx_type;
6050                 ret = 0;
6051         } else if (property == adev->mode_info.underscan_hborder_property) {
6052                 dm_new_state->underscan_hborder = val;
6053                 ret = 0;
6054         } else if (property == adev->mode_info.underscan_vborder_property) {
6055                 dm_new_state->underscan_vborder = val;
6056                 ret = 0;
6057         } else if (property == adev->mode_info.underscan_property) {
6058                 dm_new_state->underscan_enable = val;
6059                 ret = 0;
6060         } else if (property == adev->mode_info.abm_level_property) {
6061                 dm_new_state->abm_level = val;
6062                 ret = 0;
6063         }
6064
6065         return ret;
6066 }
6067
6068 int amdgpu_dm_connector_atomic_get_property(struct drm_connector *connector,
6069                                             const struct drm_connector_state *state,
6070                                             struct drm_property *property,
6071                                             uint64_t *val)
6072 {
6073         struct drm_device *dev = connector->dev;
6074         struct amdgpu_device *adev = drm_to_adev(dev);
6075         struct dm_connector_state *dm_state =
6076                 to_dm_connector_state(state);
6077         int ret = -EINVAL;
6078
6079         if (property == dev->mode_config.scaling_mode_property) {
6080                 switch (dm_state->scaling) {
6081                 case RMX_CENTER:
6082                         *val = DRM_MODE_SCALE_CENTER;
6083                         break;
6084                 case RMX_ASPECT:
6085                         *val = DRM_MODE_SCALE_ASPECT;
6086                         break;
6087                 case RMX_FULL:
6088                         *val = DRM_MODE_SCALE_FULLSCREEN;
6089                         break;
6090                 case RMX_OFF:
6091                 default:
6092                         *val = DRM_MODE_SCALE_NONE;
6093                         break;
6094                 }
6095                 ret = 0;
6096         } else if (property == adev->mode_info.underscan_hborder_property) {
6097                 *val = dm_state->underscan_hborder;
6098                 ret = 0;
6099         } else if (property == adev->mode_info.underscan_vborder_property) {
6100                 *val = dm_state->underscan_vborder;
6101                 ret = 0;
6102         } else if (property == adev->mode_info.underscan_property) {
6103                 *val = dm_state->underscan_enable;
6104                 ret = 0;
6105         } else if (property == adev->mode_info.abm_level_property) {
6106                 *val = dm_state->abm_level;
6107                 ret = 0;
6108         }
6109
6110         return ret;
6111 }
6112
6113 static void amdgpu_dm_connector_unregister(struct drm_connector *connector)
6114 {
6115         struct amdgpu_dm_connector *amdgpu_dm_connector = to_amdgpu_dm_connector(connector);
6116
6117         drm_dp_aux_unregister(&amdgpu_dm_connector->dm_dp_aux.aux);
6118 }
6119
6120 static void amdgpu_dm_connector_destroy(struct drm_connector *connector)
6121 {
6122         struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
6123         const struct dc_link *link = aconnector->dc_link;
6124         struct amdgpu_device *adev = drm_to_adev(connector->dev);
6125         struct amdgpu_display_manager *dm = &adev->dm;
6126         int i;
6127
6128         /*
6129          * Call only if mst_mgr was initialized before since it's not done
6130          * for all connector types.
6131          */
6132         if (aconnector->mst_mgr.dev)
6133                 drm_dp_mst_topology_mgr_destroy(&aconnector->mst_mgr);
6134
6135 #if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) ||\
6136         defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE)
6137         for (i = 0; i < dm->num_of_edps; i++) {
6138                 if ((link == dm->backlight_link[i]) && dm->backlight_dev[i]) {
6139                         backlight_device_unregister(dm->backlight_dev[i]);
6140                         dm->backlight_dev[i] = NULL;
6141                 }
6142         }
6143 #endif
6144
6145         if (aconnector->dc_em_sink)
6146                 dc_sink_release(aconnector->dc_em_sink);
6147         aconnector->dc_em_sink = NULL;
6148         if (aconnector->dc_sink)
6149                 dc_sink_release(aconnector->dc_sink);
6150         aconnector->dc_sink = NULL;
6151
6152         drm_dp_cec_unregister_connector(&aconnector->dm_dp_aux.aux);
6153         drm_connector_unregister(connector);
6154         drm_connector_cleanup(connector);
6155         if (aconnector->i2c) {
6156                 i2c_del_adapter(&aconnector->i2c->base);
6157                 kfree(aconnector->i2c);
6158         }
6159         kfree(aconnector->dm_dp_aux.aux.name);
6160
6161         kfree(connector);
6162 }
6163
6164 void amdgpu_dm_connector_funcs_reset(struct drm_connector *connector)
6165 {
6166         struct dm_connector_state *state =
6167                 to_dm_connector_state(connector->state);
6168
6169         if (connector->state)
6170                 __drm_atomic_helper_connector_destroy_state(connector->state);
6171
6172         kfree(state);
6173
6174         state = kzalloc(sizeof(*state), GFP_KERNEL);
6175
6176         if (state) {
6177                 state->scaling = RMX_OFF;
6178                 state->underscan_enable = false;
6179                 state->underscan_hborder = 0;
6180                 state->underscan_vborder = 0;
6181                 state->base.max_requested_bpc = 8;
6182                 state->vcpi_slots = 0;
6183                 state->pbn = 0;
6184
6185                 if (connector->connector_type == DRM_MODE_CONNECTOR_eDP)
6186                         state->abm_level = amdgpu_dm_abm_level;
6187
6188                 __drm_atomic_helper_connector_reset(connector, &state->base);
6189         }
6190 }
6191
6192 struct drm_connector_state *
6193 amdgpu_dm_connector_atomic_duplicate_state(struct drm_connector *connector)
6194 {
6195         struct dm_connector_state *state =
6196                 to_dm_connector_state(connector->state);
6197
6198         struct dm_connector_state *new_state =
6199                         kmemdup(state, sizeof(*state), GFP_KERNEL);
6200
6201         if (!new_state)
6202                 return NULL;
6203
6204         __drm_atomic_helper_connector_duplicate_state(connector, &new_state->base);
6205
6206         new_state->freesync_capable = state->freesync_capable;
6207         new_state->abm_level = state->abm_level;
6208         new_state->scaling = state->scaling;
6209         new_state->underscan_enable = state->underscan_enable;
6210         new_state->underscan_hborder = state->underscan_hborder;
6211         new_state->underscan_vborder = state->underscan_vborder;
6212         new_state->vcpi_slots = state->vcpi_slots;
6213         new_state->pbn = state->pbn;
6214         return &new_state->base;
6215 }
6216
6217 static int
6218 amdgpu_dm_connector_late_register(struct drm_connector *connector)
6219 {
6220         struct amdgpu_dm_connector *amdgpu_dm_connector =
6221                 to_amdgpu_dm_connector(connector);
6222         int r;
6223
6224         if ((connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) ||
6225             (connector->connector_type == DRM_MODE_CONNECTOR_eDP)) {
6226                 amdgpu_dm_connector->dm_dp_aux.aux.dev = connector->kdev;
6227                 r = drm_dp_aux_register(&amdgpu_dm_connector->dm_dp_aux.aux);
6228                 if (r)
6229                         return r;
6230         }
6231
6232 #if defined(CONFIG_DEBUG_FS)
6233         connector_debugfs_init(amdgpu_dm_connector);
6234 #endif
6235
6236         return 0;
6237 }
6238
6239 static const struct drm_connector_funcs amdgpu_dm_connector_funcs = {
6240         .reset = amdgpu_dm_connector_funcs_reset,
6241         .detect = amdgpu_dm_connector_detect,
6242         .fill_modes = drm_helper_probe_single_connector_modes,
6243         .destroy = amdgpu_dm_connector_destroy,
6244         .atomic_duplicate_state = amdgpu_dm_connector_atomic_duplicate_state,
6245         .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
6246         .atomic_set_property = amdgpu_dm_connector_atomic_set_property,
6247         .atomic_get_property = amdgpu_dm_connector_atomic_get_property,
6248         .late_register = amdgpu_dm_connector_late_register,
6249         .early_unregister = amdgpu_dm_connector_unregister
6250 };
6251
6252 static int get_modes(struct drm_connector *connector)
6253 {
6254         return amdgpu_dm_connector_get_modes(connector);
6255 }
6256
6257 static void create_eml_sink(struct amdgpu_dm_connector *aconnector)
6258 {
6259         struct dc_sink_init_data init_params = {
6260                         .link = aconnector->dc_link,
6261                         .sink_signal = SIGNAL_TYPE_VIRTUAL
6262         };
6263         struct edid *edid;
6264
6265         if (!aconnector->base.edid_blob_ptr) {
6266                 DRM_ERROR("No EDID firmware found on connector: %s ,forcing to OFF!\n",
6267                                 aconnector->base.name);
6268
6269                 aconnector->base.force = DRM_FORCE_OFF;
6270                 return;
6271         }
6272
6273         edid = (struct edid *) aconnector->base.edid_blob_ptr->data;
6274
6275         aconnector->edid = edid;
6276
6277         aconnector->dc_em_sink = dc_link_add_remote_sink(
6278                 aconnector->dc_link,
6279                 (uint8_t *)edid,
6280                 (edid->extensions + 1) * EDID_LENGTH,
6281                 &init_params);
6282
6283         if (aconnector->base.force == DRM_FORCE_ON) {
6284                 aconnector->dc_sink = aconnector->dc_link->local_sink ?
6285                 aconnector->dc_link->local_sink :
6286                 aconnector->dc_em_sink;
6287                 dc_sink_retain(aconnector->dc_sink);
6288         }
6289 }
6290
6291 static void handle_edid_mgmt(struct amdgpu_dm_connector *aconnector)
6292 {
6293         struct dc_link *link = (struct dc_link *)aconnector->dc_link;
6294
6295         /*
6296          * In case of headless boot with force on for DP managed connector
6297          * Those settings have to be != 0 to get initial modeset
6298          */
6299         if (link->connector_signal == SIGNAL_TYPE_DISPLAY_PORT) {
6300                 link->verified_link_cap.lane_count = LANE_COUNT_FOUR;
6301                 link->verified_link_cap.link_rate = LINK_RATE_HIGH2;
6302         }
6303
6304         create_eml_sink(aconnector);
6305 }
6306
6307 static enum dc_status dm_validate_stream_and_context(struct dc *dc,
6308                                                 struct dc_stream_state *stream)
6309 {
6310         enum dc_status dc_result = DC_ERROR_UNEXPECTED;
6311         struct dc_plane_state *dc_plane_state = NULL;
6312         struct dc_state *dc_state = NULL;
6313
6314         if (!stream)
6315                 goto cleanup;
6316
6317         dc_plane_state = dc_create_plane_state(dc);
6318         if (!dc_plane_state)
6319                 goto cleanup;
6320
6321         dc_state = dc_create_state(dc);
6322         if (!dc_state)
6323                 goto cleanup;
6324
6325         /* populate stream to plane */
6326         dc_plane_state->src_rect.height  = stream->src.height;
6327         dc_plane_state->src_rect.width   = stream->src.width;
6328         dc_plane_state->dst_rect.height  = stream->src.height;
6329         dc_plane_state->dst_rect.width   = stream->src.width;
6330         dc_plane_state->clip_rect.height = stream->src.height;
6331         dc_plane_state->clip_rect.width  = stream->src.width;
6332         dc_plane_state->plane_size.surface_pitch = ((stream->src.width + 255) / 256) * 256;
6333         dc_plane_state->plane_size.surface_size.height = stream->src.height;
6334         dc_plane_state->plane_size.surface_size.width  = stream->src.width;
6335         dc_plane_state->plane_size.chroma_size.height  = stream->src.height;
6336         dc_plane_state->plane_size.chroma_size.width   = stream->src.width;
6337         dc_plane_state->tiling_info.gfx9.swizzle =  DC_SW_UNKNOWN;
6338         dc_plane_state->format = SURFACE_PIXEL_FORMAT_GRPH_ARGB8888;
6339         dc_plane_state->tiling_info.gfx9.swizzle = DC_SW_UNKNOWN;
6340         dc_plane_state->rotation = ROTATION_ANGLE_0;
6341         dc_plane_state->is_tiling_rotated = false;
6342         dc_plane_state->tiling_info.gfx8.array_mode = DC_ARRAY_LINEAR_GENERAL;
6343
6344         dc_result = dc_validate_stream(dc, stream);
6345         if (dc_result == DC_OK)
6346                 dc_result = dc_validate_plane(dc, dc_plane_state);
6347
6348         if (dc_result == DC_OK)
6349                 dc_result = dc_add_stream_to_ctx(dc, dc_state, stream);
6350
6351         if (dc_result == DC_OK && !dc_add_plane_to_context(
6352                                                 dc,
6353                                                 stream,
6354                                                 dc_plane_state,
6355                                                 dc_state))
6356                 dc_result = DC_FAIL_ATTACH_SURFACES;
6357
6358         if (dc_result == DC_OK)
6359                 dc_result = dc_validate_global_state(dc, dc_state, true);
6360
6361 cleanup:
6362         if (dc_state)
6363                 dc_release_state(dc_state);
6364
6365         if (dc_plane_state)
6366                 dc_plane_state_release(dc_plane_state);
6367
6368         return dc_result;
6369 }
6370
6371 struct dc_stream_state *
6372 create_validate_stream_for_sink(struct amdgpu_dm_connector *aconnector,
6373                                 const struct drm_display_mode *drm_mode,
6374                                 const struct dm_connector_state *dm_state,
6375                                 const struct dc_stream_state *old_stream)
6376 {
6377         struct drm_connector *connector = &aconnector->base;
6378         struct amdgpu_device *adev = drm_to_adev(connector->dev);
6379         struct dc_stream_state *stream;
6380         const struct drm_connector_state *drm_state = dm_state ? &dm_state->base : NULL;
6381         int requested_bpc = drm_state ? drm_state->max_requested_bpc : 8;
6382         enum dc_status dc_result = DC_OK;
6383
6384         do {
6385                 stream = create_stream_for_sink(aconnector, drm_mode,
6386                                                 dm_state, old_stream,
6387                                                 requested_bpc);
6388                 if (stream == NULL) {
6389                         DRM_ERROR("Failed to create stream for sink!\n");
6390                         break;
6391                 }
6392
6393                 dc_result = dc_validate_stream(adev->dm.dc, stream);
6394                 if (dc_result == DC_OK && stream->signal == SIGNAL_TYPE_DISPLAY_PORT_MST)
6395                         dc_result = dm_dp_mst_is_port_support_mode(aconnector, stream);
6396
6397                 if (dc_result == DC_OK)
6398                         dc_result = dm_validate_stream_and_context(adev->dm.dc, stream);
6399
6400                 if (dc_result != DC_OK) {
6401                         DRM_DEBUG_KMS("Mode %dx%d (clk %d) failed DC validation with error %d (%s)\n",
6402                                       drm_mode->hdisplay,
6403                                       drm_mode->vdisplay,
6404                                       drm_mode->clock,
6405                                       dc_result,
6406                                       dc_status_to_str(dc_result));
6407
6408                         dc_stream_release(stream);
6409                         stream = NULL;
6410                         requested_bpc -= 2; /* lower bpc to retry validation */
6411                 }
6412
6413         } while (stream == NULL && requested_bpc >= 6);
6414
6415         if (dc_result == DC_FAIL_ENC_VALIDATE && !aconnector->force_yuv420_output) {
6416                 DRM_DEBUG_KMS("Retry forcing YCbCr420 encoding\n");
6417
6418                 aconnector->force_yuv420_output = true;
6419                 stream = create_validate_stream_for_sink(aconnector, drm_mode,
6420                                                 dm_state, old_stream);
6421                 aconnector->force_yuv420_output = false;
6422         }
6423
6424         return stream;
6425 }
6426
6427 enum drm_mode_status amdgpu_dm_connector_mode_valid(struct drm_connector *connector,
6428                                    struct drm_display_mode *mode)
6429 {
6430         int result = MODE_ERROR;
6431         struct dc_sink *dc_sink;
6432         /* TODO: Unhardcode stream count */
6433         struct dc_stream_state *stream;
6434         struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
6435
6436         if ((mode->flags & DRM_MODE_FLAG_INTERLACE) ||
6437                         (mode->flags & DRM_MODE_FLAG_DBLSCAN))
6438                 return result;
6439
6440         /*
6441          * Only run this the first time mode_valid is called to initilialize
6442          * EDID mgmt
6443          */
6444         if (aconnector->base.force != DRM_FORCE_UNSPECIFIED &&
6445                 !aconnector->dc_em_sink)
6446                 handle_edid_mgmt(aconnector);
6447
6448         dc_sink = to_amdgpu_dm_connector(connector)->dc_sink;
6449
6450         if (dc_sink == NULL && aconnector->base.force != DRM_FORCE_ON_DIGITAL &&
6451                                 aconnector->base.force != DRM_FORCE_ON) {
6452                 DRM_ERROR("dc_sink is NULL!\n");
6453                 goto fail;
6454         }
6455
6456         stream = create_validate_stream_for_sink(aconnector, mode, NULL, NULL);
6457         if (stream) {
6458                 dc_stream_release(stream);
6459                 result = MODE_OK;
6460         }
6461
6462 fail:
6463         /* TODO: error handling*/
6464         return result;
6465 }
6466
6467 static int fill_hdr_info_packet(const struct drm_connector_state *state,
6468                                 struct dc_info_packet *out)
6469 {
6470         struct hdmi_drm_infoframe frame;
6471         unsigned char buf[30]; /* 26 + 4 */
6472         ssize_t len;
6473         int ret, i;
6474
6475         memset(out, 0, sizeof(*out));
6476
6477         if (!state->hdr_output_metadata)
6478                 return 0;
6479
6480         ret = drm_hdmi_infoframe_set_hdr_metadata(&frame, state);
6481         if (ret)
6482                 return ret;
6483
6484         len = hdmi_drm_infoframe_pack_only(&frame, buf, sizeof(buf));
6485         if (len < 0)
6486                 return (int)len;
6487
6488         /* Static metadata is a fixed 26 bytes + 4 byte header. */
6489         if (len != 30)
6490                 return -EINVAL;
6491
6492         /* Prepare the infopacket for DC. */
6493         switch (state->connector->connector_type) {
6494         case DRM_MODE_CONNECTOR_HDMIA:
6495                 out->hb0 = 0x87; /* type */
6496                 out->hb1 = 0x01; /* version */
6497                 out->hb2 = 0x1A; /* length */
6498                 out->sb[0] = buf[3]; /* checksum */
6499                 i = 1;
6500                 break;
6501
6502         case DRM_MODE_CONNECTOR_DisplayPort:
6503         case DRM_MODE_CONNECTOR_eDP:
6504                 out->hb0 = 0x00; /* sdp id, zero */
6505                 out->hb1 = 0x87; /* type */
6506                 out->hb2 = 0x1D; /* payload len - 1 */
6507                 out->hb3 = (0x13 << 2); /* sdp version */
6508                 out->sb[0] = 0x01; /* version */
6509                 out->sb[1] = 0x1A; /* length */
6510                 i = 2;
6511                 break;
6512
6513         default:
6514                 return -EINVAL;
6515         }
6516
6517         memcpy(&out->sb[i], &buf[4], 26);
6518         out->valid = true;
6519
6520         print_hex_dump(KERN_DEBUG, "HDR SB:", DUMP_PREFIX_NONE, 16, 1, out->sb,
6521                        sizeof(out->sb), false);
6522
6523         return 0;
6524 }
6525
6526 static int
6527 amdgpu_dm_connector_atomic_check(struct drm_connector *conn,
6528                                  struct drm_atomic_state *state)
6529 {
6530         struct drm_connector_state *new_con_state =
6531                 drm_atomic_get_new_connector_state(state, conn);
6532         struct drm_connector_state *old_con_state =
6533                 drm_atomic_get_old_connector_state(state, conn);
6534         struct drm_crtc *crtc = new_con_state->crtc;
6535         struct drm_crtc_state *new_crtc_state;
6536         struct amdgpu_dm_connector *aconn = to_amdgpu_dm_connector(conn);
6537         int ret;
6538
6539         trace_amdgpu_dm_connector_atomic_check(new_con_state);
6540
6541         if (conn->connector_type == DRM_MODE_CONNECTOR_DisplayPort) {
6542                 ret = drm_dp_mst_root_conn_atomic_check(new_con_state, &aconn->mst_mgr);
6543                 if (ret < 0)
6544                         return ret;
6545         }
6546
6547         if (!crtc)
6548                 return 0;
6549
6550         if (!drm_connector_atomic_hdr_metadata_equal(old_con_state, new_con_state)) {
6551                 struct dc_info_packet hdr_infopacket;
6552
6553                 ret = fill_hdr_info_packet(new_con_state, &hdr_infopacket);
6554                 if (ret)
6555                         return ret;
6556
6557                 new_crtc_state = drm_atomic_get_crtc_state(state, crtc);
6558                 if (IS_ERR(new_crtc_state))
6559                         return PTR_ERR(new_crtc_state);
6560
6561                 /*
6562                  * DC considers the stream backends changed if the
6563                  * static metadata changes. Forcing the modeset also
6564                  * gives a simple way for userspace to switch from
6565                  * 8bpc to 10bpc when setting the metadata to enter
6566                  * or exit HDR.
6567                  *
6568                  * Changing the static metadata after it's been
6569                  * set is permissible, however. So only force a
6570                  * modeset if we're entering or exiting HDR.
6571                  */
6572                 new_crtc_state->mode_changed =
6573                         !old_con_state->hdr_output_metadata ||
6574                         !new_con_state->hdr_output_metadata;
6575         }
6576
6577         return 0;
6578 }
6579
6580 static const struct drm_connector_helper_funcs
6581 amdgpu_dm_connector_helper_funcs = {
6582         /*
6583          * If hotplugging a second bigger display in FB Con mode, bigger resolution
6584          * modes will be filtered by drm_mode_validate_size(), and those modes
6585          * are missing after user start lightdm. So we need to renew modes list.
6586          * in get_modes call back, not just return the modes count
6587          */
6588         .get_modes = get_modes,
6589         .mode_valid = amdgpu_dm_connector_mode_valid,
6590         .atomic_check = amdgpu_dm_connector_atomic_check,
6591 };
6592
6593 static void dm_encoder_helper_disable(struct drm_encoder *encoder)
6594 {
6595
6596 }
6597
6598 int convert_dc_color_depth_into_bpc(enum dc_color_depth display_color_depth)
6599 {
6600         switch (display_color_depth) {
6601         case COLOR_DEPTH_666:
6602                 return 6;
6603         case COLOR_DEPTH_888:
6604                 return 8;
6605         case COLOR_DEPTH_101010:
6606                 return 10;
6607         case COLOR_DEPTH_121212:
6608                 return 12;
6609         case COLOR_DEPTH_141414:
6610                 return 14;
6611         case COLOR_DEPTH_161616:
6612                 return 16;
6613         default:
6614                 break;
6615         }
6616         return 0;
6617 }
6618
6619 static int dm_encoder_helper_atomic_check(struct drm_encoder *encoder,
6620                                           struct drm_crtc_state *crtc_state,
6621                                           struct drm_connector_state *conn_state)
6622 {
6623         struct drm_atomic_state *state = crtc_state->state;
6624         struct drm_connector *connector = conn_state->connector;
6625         struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
6626         struct dm_connector_state *dm_new_connector_state = to_dm_connector_state(conn_state);
6627         const struct drm_display_mode *adjusted_mode = &crtc_state->adjusted_mode;
6628         struct drm_dp_mst_topology_mgr *mst_mgr;
6629         struct drm_dp_mst_port *mst_port;
6630         struct drm_dp_mst_topology_state *mst_state;
6631         enum dc_color_depth color_depth;
6632         int clock, bpp = 0;
6633         bool is_y420 = false;
6634
6635         if (!aconnector->mst_output_port || !aconnector->dc_sink)
6636                 return 0;
6637
6638         mst_port = aconnector->mst_output_port;
6639         mst_mgr = &aconnector->mst_root->mst_mgr;
6640
6641         if (!crtc_state->connectors_changed && !crtc_state->mode_changed)
6642                 return 0;
6643
6644         mst_state = drm_atomic_get_mst_topology_state(state, mst_mgr);
6645         if (IS_ERR(mst_state))
6646                 return PTR_ERR(mst_state);
6647
6648         if (!mst_state->pbn_div)
6649                 mst_state->pbn_div = dm_mst_get_pbn_divider(aconnector->mst_root->dc_link);
6650
6651         if (!state->duplicated) {
6652                 int max_bpc = conn_state->max_requested_bpc;
6653                 is_y420 = drm_mode_is_420_also(&connector->display_info, adjusted_mode) &&
6654                           aconnector->force_yuv420_output;
6655                 color_depth = convert_color_depth_from_display_info(connector,
6656                                                                     is_y420,
6657                                                                     max_bpc);
6658                 bpp = convert_dc_color_depth_into_bpc(color_depth) * 3;
6659                 clock = adjusted_mode->clock;
6660                 dm_new_connector_state->pbn = drm_dp_calc_pbn_mode(clock, bpp, false);
6661         }
6662
6663         dm_new_connector_state->vcpi_slots =
6664                 drm_dp_atomic_find_time_slots(state, mst_mgr, mst_port,
6665                                               dm_new_connector_state->pbn);
6666         if (dm_new_connector_state->vcpi_slots < 0) {
6667                 DRM_DEBUG_ATOMIC("failed finding vcpi slots: %d\n", (int)dm_new_connector_state->vcpi_slots);
6668                 return dm_new_connector_state->vcpi_slots;
6669         }
6670         return 0;
6671 }
6672
6673 const struct drm_encoder_helper_funcs amdgpu_dm_encoder_helper_funcs = {
6674         .disable = dm_encoder_helper_disable,
6675         .atomic_check = dm_encoder_helper_atomic_check
6676 };
6677
6678 #if defined(CONFIG_DRM_AMD_DC_DCN)
6679 static int dm_update_mst_vcpi_slots_for_dsc(struct drm_atomic_state *state,
6680                                             struct dc_state *dc_state,
6681                                             struct dsc_mst_fairness_vars *vars)
6682 {
6683         struct dc_stream_state *stream = NULL;
6684         struct drm_connector *connector;
6685         struct drm_connector_state *new_con_state;
6686         struct amdgpu_dm_connector *aconnector;
6687         struct dm_connector_state *dm_conn_state;
6688         int i, j, ret;
6689         int vcpi, pbn_div, pbn, slot_num = 0;
6690
6691         for_each_new_connector_in_state(state, connector, new_con_state, i) {
6692
6693                 aconnector = to_amdgpu_dm_connector(connector);
6694
6695                 if (!aconnector->mst_output_port)
6696                         continue;
6697
6698                 if (!new_con_state || !new_con_state->crtc)
6699                         continue;
6700
6701                 dm_conn_state = to_dm_connector_state(new_con_state);
6702
6703                 for (j = 0; j < dc_state->stream_count; j++) {
6704                         stream = dc_state->streams[j];
6705                         if (!stream)
6706                                 continue;
6707
6708                         if ((struct amdgpu_dm_connector *)stream->dm_stream_context == aconnector)
6709                                 break;
6710
6711                         stream = NULL;
6712                 }
6713
6714                 if (!stream)
6715                         continue;
6716
6717                 pbn_div = dm_mst_get_pbn_divider(stream->link);
6718                 /* pbn is calculated by compute_mst_dsc_configs_for_state*/
6719                 for (j = 0; j < dc_state->stream_count; j++) {
6720                         if (vars[j].aconnector == aconnector) {
6721                                 pbn = vars[j].pbn;
6722                                 break;
6723                         }
6724                 }
6725
6726                 if (j == dc_state->stream_count)
6727                         continue;
6728
6729                 slot_num = DIV_ROUND_UP(pbn, pbn_div);
6730
6731                 if (stream->timing.flags.DSC != 1) {
6732                         dm_conn_state->pbn = pbn;
6733                         dm_conn_state->vcpi_slots = slot_num;
6734
6735                         ret = drm_dp_mst_atomic_enable_dsc(state, aconnector->mst_output_port,
6736                                                            dm_conn_state->pbn, false);
6737                         if (ret < 0)
6738                                 return ret;
6739
6740                         continue;
6741                 }
6742
6743                 vcpi = drm_dp_mst_atomic_enable_dsc(state, aconnector->mst_output_port, pbn, true);
6744                 if (vcpi < 0)
6745                         return vcpi;
6746
6747                 dm_conn_state->pbn = pbn;
6748                 dm_conn_state->vcpi_slots = vcpi;
6749         }
6750         return 0;
6751 }
6752 #endif
6753
6754 static int to_drm_connector_type(enum signal_type st)
6755 {
6756         switch (st) {
6757         case SIGNAL_TYPE_HDMI_TYPE_A:
6758                 return DRM_MODE_CONNECTOR_HDMIA;
6759         case SIGNAL_TYPE_EDP:
6760                 return DRM_MODE_CONNECTOR_eDP;
6761         case SIGNAL_TYPE_LVDS:
6762                 return DRM_MODE_CONNECTOR_LVDS;
6763         case SIGNAL_TYPE_RGB:
6764                 return DRM_MODE_CONNECTOR_VGA;
6765         case SIGNAL_TYPE_DISPLAY_PORT:
6766         case SIGNAL_TYPE_DISPLAY_PORT_MST:
6767                 return DRM_MODE_CONNECTOR_DisplayPort;
6768         case SIGNAL_TYPE_DVI_DUAL_LINK:
6769         case SIGNAL_TYPE_DVI_SINGLE_LINK:
6770                 return DRM_MODE_CONNECTOR_DVID;
6771         case SIGNAL_TYPE_VIRTUAL:
6772                 return DRM_MODE_CONNECTOR_VIRTUAL;
6773
6774         default:
6775                 return DRM_MODE_CONNECTOR_Unknown;
6776         }
6777 }
6778
6779 static struct drm_encoder *amdgpu_dm_connector_to_encoder(struct drm_connector *connector)
6780 {
6781         struct drm_encoder *encoder;
6782
6783         /* There is only one encoder per connector */
6784         drm_connector_for_each_possible_encoder(connector, encoder)
6785                 return encoder;
6786
6787         return NULL;
6788 }
6789
6790 static void amdgpu_dm_get_native_mode(struct drm_connector *connector)
6791 {
6792         struct drm_encoder *encoder;
6793         struct amdgpu_encoder *amdgpu_encoder;
6794
6795         encoder = amdgpu_dm_connector_to_encoder(connector);
6796
6797         if (encoder == NULL)
6798                 return;
6799
6800         amdgpu_encoder = to_amdgpu_encoder(encoder);
6801
6802         amdgpu_encoder->native_mode.clock = 0;
6803
6804         if (!list_empty(&connector->probed_modes)) {
6805                 struct drm_display_mode *preferred_mode = NULL;
6806
6807                 list_for_each_entry(preferred_mode,
6808                                     &connector->probed_modes,
6809                                     head) {
6810                         if (preferred_mode->type & DRM_MODE_TYPE_PREFERRED)
6811                                 amdgpu_encoder->native_mode = *preferred_mode;
6812
6813                         break;
6814                 }
6815
6816         }
6817 }
6818
6819 static struct drm_display_mode *
6820 amdgpu_dm_create_common_mode(struct drm_encoder *encoder,
6821                              char *name,
6822                              int hdisplay, int vdisplay)
6823 {
6824         struct drm_device *dev = encoder->dev;
6825         struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
6826         struct drm_display_mode *mode = NULL;
6827         struct drm_display_mode *native_mode = &amdgpu_encoder->native_mode;
6828
6829         mode = drm_mode_duplicate(dev, native_mode);
6830
6831         if (mode == NULL)
6832                 return NULL;
6833
6834         mode->hdisplay = hdisplay;
6835         mode->vdisplay = vdisplay;
6836         mode->type &= ~DRM_MODE_TYPE_PREFERRED;
6837         strscpy(mode->name, name, DRM_DISPLAY_MODE_LEN);
6838
6839         return mode;
6840
6841 }
6842
6843 static void amdgpu_dm_connector_add_common_modes(struct drm_encoder *encoder,
6844                                                  struct drm_connector *connector)
6845 {
6846         struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
6847         struct drm_display_mode *mode = NULL;
6848         struct drm_display_mode *native_mode = &amdgpu_encoder->native_mode;
6849         struct amdgpu_dm_connector *amdgpu_dm_connector =
6850                                 to_amdgpu_dm_connector(connector);
6851         int i;
6852         int n;
6853         struct mode_size {
6854                 char name[DRM_DISPLAY_MODE_LEN];
6855                 int w;
6856                 int h;
6857         } common_modes[] = {
6858                 {  "640x480",  640,  480},
6859                 {  "800x600",  800,  600},
6860                 { "1024x768", 1024,  768},
6861                 { "1280x720", 1280,  720},
6862                 { "1280x800", 1280,  800},
6863                 {"1280x1024", 1280, 1024},
6864                 { "1440x900", 1440,  900},
6865                 {"1680x1050", 1680, 1050},
6866                 {"1600x1200", 1600, 1200},
6867                 {"1920x1080", 1920, 1080},
6868                 {"1920x1200", 1920, 1200}
6869         };
6870
6871         n = ARRAY_SIZE(common_modes);
6872
6873         for (i = 0; i < n; i++) {
6874                 struct drm_display_mode *curmode = NULL;
6875                 bool mode_existed = false;
6876
6877                 if (common_modes[i].w > native_mode->hdisplay ||
6878                     common_modes[i].h > native_mode->vdisplay ||
6879                    (common_modes[i].w == native_mode->hdisplay &&
6880                     common_modes[i].h == native_mode->vdisplay))
6881                         continue;
6882
6883                 list_for_each_entry(curmode, &connector->probed_modes, head) {
6884                         if (common_modes[i].w == curmode->hdisplay &&
6885                             common_modes[i].h == curmode->vdisplay) {
6886                                 mode_existed = true;
6887                                 break;
6888                         }
6889                 }
6890
6891                 if (mode_existed)
6892                         continue;
6893
6894                 mode = amdgpu_dm_create_common_mode(encoder,
6895                                 common_modes[i].name, common_modes[i].w,
6896                                 common_modes[i].h);
6897                 if (!mode)
6898                         continue;
6899
6900                 drm_mode_probed_add(connector, mode);
6901                 amdgpu_dm_connector->num_modes++;
6902         }
6903 }
6904
6905 static void amdgpu_set_panel_orientation(struct drm_connector *connector)
6906 {
6907         struct drm_encoder *encoder;
6908         struct amdgpu_encoder *amdgpu_encoder;
6909         const struct drm_display_mode *native_mode;
6910
6911         if (connector->connector_type != DRM_MODE_CONNECTOR_eDP &&
6912             connector->connector_type != DRM_MODE_CONNECTOR_LVDS)
6913                 return;
6914
6915         mutex_lock(&connector->dev->mode_config.mutex);
6916         amdgpu_dm_connector_get_modes(connector);
6917         mutex_unlock(&connector->dev->mode_config.mutex);
6918
6919         encoder = amdgpu_dm_connector_to_encoder(connector);
6920         if (!encoder)
6921                 return;
6922
6923         amdgpu_encoder = to_amdgpu_encoder(encoder);
6924
6925         native_mode = &amdgpu_encoder->native_mode;
6926         if (native_mode->hdisplay == 0 || native_mode->vdisplay == 0)
6927                 return;
6928
6929         drm_connector_set_panel_orientation_with_quirk(connector,
6930                                                        DRM_MODE_PANEL_ORIENTATION_UNKNOWN,
6931                                                        native_mode->hdisplay,
6932                                                        native_mode->vdisplay);
6933 }
6934
6935 static void amdgpu_dm_connector_ddc_get_modes(struct drm_connector *connector,
6936                                               struct edid *edid)
6937 {
6938         struct amdgpu_dm_connector *amdgpu_dm_connector =
6939                         to_amdgpu_dm_connector(connector);
6940
6941         if (edid) {
6942                 /* empty probed_modes */
6943                 INIT_LIST_HEAD(&connector->probed_modes);
6944                 amdgpu_dm_connector->num_modes =
6945                                 drm_add_edid_modes(connector, edid);
6946
6947                 /* sorting the probed modes before calling function
6948                  * amdgpu_dm_get_native_mode() since EDID can have
6949                  * more than one preferred mode. The modes that are
6950                  * later in the probed mode list could be of higher
6951                  * and preferred resolution. For example, 3840x2160
6952                  * resolution in base EDID preferred timing and 4096x2160
6953                  * preferred resolution in DID extension block later.
6954                  */
6955                 drm_mode_sort(&connector->probed_modes);
6956                 amdgpu_dm_get_native_mode(connector);
6957
6958                 /* Freesync capabilities are reset by calling
6959                  * drm_add_edid_modes() and need to be
6960                  * restored here.
6961                  */
6962                 amdgpu_dm_update_freesync_caps(connector, edid);
6963         } else {
6964                 amdgpu_dm_connector->num_modes = 0;
6965         }
6966 }
6967
6968 static bool is_duplicate_mode(struct amdgpu_dm_connector *aconnector,
6969                               struct drm_display_mode *mode)
6970 {
6971         struct drm_display_mode *m;
6972
6973         list_for_each_entry (m, &aconnector->base.probed_modes, head) {
6974                 if (drm_mode_equal(m, mode))
6975                         return true;
6976         }
6977
6978         return false;
6979 }
6980
6981 static uint add_fs_modes(struct amdgpu_dm_connector *aconnector)
6982 {
6983         const struct drm_display_mode *m;
6984         struct drm_display_mode *new_mode;
6985         uint i;
6986         u32 new_modes_count = 0;
6987
6988         /* Standard FPS values
6989          *
6990          * 23.976       - TV/NTSC
6991          * 24           - Cinema
6992          * 25           - TV/PAL
6993          * 29.97        - TV/NTSC
6994          * 30           - TV/NTSC
6995          * 48           - Cinema HFR
6996          * 50           - TV/PAL
6997          * 60           - Commonly used
6998          * 48,72,96,120 - Multiples of 24
6999          */
7000         static const u32 common_rates[] = {
7001                 23976, 24000, 25000, 29970, 30000,
7002                 48000, 50000, 60000, 72000, 96000, 120000
7003         };
7004
7005         /*
7006          * Find mode with highest refresh rate with the same resolution
7007          * as the preferred mode. Some monitors report a preferred mode
7008          * with lower resolution than the highest refresh rate supported.
7009          */
7010
7011         m = get_highest_refresh_rate_mode(aconnector, true);
7012         if (!m)
7013                 return 0;
7014
7015         for (i = 0; i < ARRAY_SIZE(common_rates); i++) {
7016                 u64 target_vtotal, target_vtotal_diff;
7017                 u64 num, den;
7018
7019                 if (drm_mode_vrefresh(m) * 1000 < common_rates[i])
7020                         continue;
7021
7022                 if (common_rates[i] < aconnector->min_vfreq * 1000 ||
7023                     common_rates[i] > aconnector->max_vfreq * 1000)
7024                         continue;
7025
7026                 num = (unsigned long long)m->clock * 1000 * 1000;
7027                 den = common_rates[i] * (unsigned long long)m->htotal;
7028                 target_vtotal = div_u64(num, den);
7029                 target_vtotal_diff = target_vtotal - m->vtotal;
7030
7031                 /* Check for illegal modes */
7032                 if (m->vsync_start + target_vtotal_diff < m->vdisplay ||
7033                     m->vsync_end + target_vtotal_diff < m->vsync_start ||
7034                     m->vtotal + target_vtotal_diff < m->vsync_end)
7035                         continue;
7036
7037                 new_mode = drm_mode_duplicate(aconnector->base.dev, m);
7038                 if (!new_mode)
7039                         goto out;
7040
7041                 new_mode->vtotal += (u16)target_vtotal_diff;
7042                 new_mode->vsync_start += (u16)target_vtotal_diff;
7043                 new_mode->vsync_end += (u16)target_vtotal_diff;
7044                 new_mode->type &= ~DRM_MODE_TYPE_PREFERRED;
7045                 new_mode->type |= DRM_MODE_TYPE_DRIVER;
7046
7047                 if (!is_duplicate_mode(aconnector, new_mode)) {
7048                         drm_mode_probed_add(&aconnector->base, new_mode);
7049                         new_modes_count += 1;
7050                 } else
7051                         drm_mode_destroy(aconnector->base.dev, new_mode);
7052         }
7053  out:
7054         return new_modes_count;
7055 }
7056
7057 static void amdgpu_dm_connector_add_freesync_modes(struct drm_connector *connector,
7058                                                    struct edid *edid)
7059 {
7060         struct amdgpu_dm_connector *amdgpu_dm_connector =
7061                 to_amdgpu_dm_connector(connector);
7062
7063         if (!(amdgpu_freesync_vid_mode && edid))
7064                 return;
7065
7066         if (amdgpu_dm_connector->max_vfreq - amdgpu_dm_connector->min_vfreq > 10)
7067                 amdgpu_dm_connector->num_modes +=
7068                         add_fs_modes(amdgpu_dm_connector);
7069 }
7070
7071 static int amdgpu_dm_connector_get_modes(struct drm_connector *connector)
7072 {
7073         struct amdgpu_dm_connector *amdgpu_dm_connector =
7074                         to_amdgpu_dm_connector(connector);
7075         struct drm_encoder *encoder;
7076         struct edid *edid = amdgpu_dm_connector->edid;
7077
7078         encoder = amdgpu_dm_connector_to_encoder(connector);
7079
7080         if (!drm_edid_is_valid(edid)) {
7081                 amdgpu_dm_connector->num_modes =
7082                                 drm_add_modes_noedid(connector, 640, 480);
7083         } else {
7084                 amdgpu_dm_connector_ddc_get_modes(connector, edid);
7085                 amdgpu_dm_connector_add_common_modes(encoder, connector);
7086                 amdgpu_dm_connector_add_freesync_modes(connector, edid);
7087         }
7088         amdgpu_dm_fbc_init(connector);
7089
7090         return amdgpu_dm_connector->num_modes;
7091 }
7092
7093 void amdgpu_dm_connector_init_helper(struct amdgpu_display_manager *dm,
7094                                      struct amdgpu_dm_connector *aconnector,
7095                                      int connector_type,
7096                                      struct dc_link *link,
7097                                      int link_index)
7098 {
7099         struct amdgpu_device *adev = drm_to_adev(dm->ddev);
7100
7101         /*
7102          * Some of the properties below require access to state, like bpc.
7103          * Allocate some default initial connector state with our reset helper.
7104          */
7105         if (aconnector->base.funcs->reset)
7106                 aconnector->base.funcs->reset(&aconnector->base);
7107
7108         aconnector->connector_id = link_index;
7109         aconnector->dc_link = link;
7110         aconnector->base.interlace_allowed = false;
7111         aconnector->base.doublescan_allowed = false;
7112         aconnector->base.stereo_allowed = false;
7113         aconnector->base.dpms = DRM_MODE_DPMS_OFF;
7114         aconnector->hpd.hpd = AMDGPU_HPD_NONE; /* not used */
7115         aconnector->audio_inst = -1;
7116         mutex_init(&aconnector->hpd_lock);
7117
7118         /*
7119          * configure support HPD hot plug connector_>polled default value is 0
7120          * which means HPD hot plug not supported
7121          */
7122         switch (connector_type) {
7123         case DRM_MODE_CONNECTOR_HDMIA:
7124                 aconnector->base.polled = DRM_CONNECTOR_POLL_HPD;
7125                 aconnector->base.ycbcr_420_allowed =
7126                         link->link_enc->features.hdmi_ycbcr420_supported ? true : false;
7127                 break;
7128         case DRM_MODE_CONNECTOR_DisplayPort:
7129                 aconnector->base.polled = DRM_CONNECTOR_POLL_HPD;
7130                 link->link_enc = link_enc_cfg_get_link_enc(link);
7131                 ASSERT(link->link_enc);
7132                 if (link->link_enc)
7133                         aconnector->base.ycbcr_420_allowed =
7134                         link->link_enc->features.dp_ycbcr420_supported ? true : false;
7135                 break;
7136         case DRM_MODE_CONNECTOR_DVID:
7137                 aconnector->base.polled = DRM_CONNECTOR_POLL_HPD;
7138                 break;
7139         default:
7140                 break;
7141         }
7142
7143         drm_object_attach_property(&aconnector->base.base,
7144                                 dm->ddev->mode_config.scaling_mode_property,
7145                                 DRM_MODE_SCALE_NONE);
7146
7147         drm_object_attach_property(&aconnector->base.base,
7148                                 adev->mode_info.underscan_property,
7149                                 UNDERSCAN_OFF);
7150         drm_object_attach_property(&aconnector->base.base,
7151                                 adev->mode_info.underscan_hborder_property,
7152                                 0);
7153         drm_object_attach_property(&aconnector->base.base,
7154                                 adev->mode_info.underscan_vborder_property,
7155                                 0);
7156
7157         if (!aconnector->mst_root)
7158                 drm_connector_attach_max_bpc_property(&aconnector->base, 8, 16);
7159
7160         /* This defaults to the max in the range, but we want 8bpc for non-edp. */
7161         aconnector->base.state->max_bpc = (connector_type == DRM_MODE_CONNECTOR_eDP) ? 16 : 8;
7162         aconnector->base.state->max_requested_bpc = aconnector->base.state->max_bpc;
7163
7164         if (connector_type == DRM_MODE_CONNECTOR_eDP &&
7165             (dc_is_dmcu_initialized(adev->dm.dc) || adev->dm.dc->ctx->dmub_srv)) {
7166                 drm_object_attach_property(&aconnector->base.base,
7167                                 adev->mode_info.abm_level_property, 0);
7168         }
7169
7170         if (connector_type == DRM_MODE_CONNECTOR_HDMIA ||
7171             connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
7172             connector_type == DRM_MODE_CONNECTOR_eDP) {
7173                 drm_connector_attach_hdr_output_metadata_property(&aconnector->base);
7174
7175                 if (!aconnector->mst_root)
7176                         drm_connector_attach_vrr_capable_property(&aconnector->base);
7177
7178 #ifdef CONFIG_DRM_AMD_DC_HDCP
7179                 if (adev->dm.hdcp_workqueue)
7180                         drm_connector_attach_content_protection_property(&aconnector->base, true);
7181 #endif
7182         }
7183 }
7184
7185 static int amdgpu_dm_i2c_xfer(struct i2c_adapter *i2c_adap,
7186                               struct i2c_msg *msgs, int num)
7187 {
7188         struct amdgpu_i2c_adapter *i2c = i2c_get_adapdata(i2c_adap);
7189         struct ddc_service *ddc_service = i2c->ddc_service;
7190         struct i2c_command cmd;
7191         int i;
7192         int result = -EIO;
7193
7194         cmd.payloads = kcalloc(num, sizeof(struct i2c_payload), GFP_KERNEL);
7195
7196         if (!cmd.payloads)
7197                 return result;
7198
7199         cmd.number_of_payloads = num;
7200         cmd.engine = I2C_COMMAND_ENGINE_DEFAULT;
7201         cmd.speed = 100;
7202
7203         for (i = 0; i < num; i++) {
7204                 cmd.payloads[i].write = !(msgs[i].flags & I2C_M_RD);
7205                 cmd.payloads[i].address = msgs[i].addr;
7206                 cmd.payloads[i].length = msgs[i].len;
7207                 cmd.payloads[i].data = msgs[i].buf;
7208         }
7209
7210         if (dc_submit_i2c(
7211                         ddc_service->ctx->dc,
7212                         ddc_service->link->link_index,
7213                         &cmd))
7214                 result = num;
7215
7216         kfree(cmd.payloads);
7217         return result;
7218 }
7219
7220 static u32 amdgpu_dm_i2c_func(struct i2c_adapter *adap)
7221 {
7222         return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
7223 }
7224
7225 static const struct i2c_algorithm amdgpu_dm_i2c_algo = {
7226         .master_xfer = amdgpu_dm_i2c_xfer,
7227         .functionality = amdgpu_dm_i2c_func,
7228 };
7229
7230 static struct amdgpu_i2c_adapter *
7231 create_i2c(struct ddc_service *ddc_service,
7232            int link_index,
7233            int *res)
7234 {
7235         struct amdgpu_device *adev = ddc_service->ctx->driver_context;
7236         struct amdgpu_i2c_adapter *i2c;
7237
7238         i2c = kzalloc(sizeof(struct amdgpu_i2c_adapter), GFP_KERNEL);
7239         if (!i2c)
7240                 return NULL;
7241         i2c->base.owner = THIS_MODULE;
7242         i2c->base.class = I2C_CLASS_DDC;
7243         i2c->base.dev.parent = &adev->pdev->dev;
7244         i2c->base.algo = &amdgpu_dm_i2c_algo;
7245         snprintf(i2c->base.name, sizeof(i2c->base.name), "AMDGPU DM i2c hw bus %d", link_index);
7246         i2c_set_adapdata(&i2c->base, i2c);
7247         i2c->ddc_service = ddc_service;
7248
7249         return i2c;
7250 }
7251
7252
7253 /*
7254  * Note: this function assumes that dc_link_detect() was called for the
7255  * dc_link which will be represented by this aconnector.
7256  */
7257 static int amdgpu_dm_connector_init(struct amdgpu_display_manager *dm,
7258                                     struct amdgpu_dm_connector *aconnector,
7259                                     u32 link_index,
7260                                     struct amdgpu_encoder *aencoder)
7261 {
7262         int res = 0;
7263         int connector_type;
7264         struct dc *dc = dm->dc;
7265         struct dc_link *link = dc_get_link_at_index(dc, link_index);
7266         struct amdgpu_i2c_adapter *i2c;
7267
7268         link->priv = aconnector;
7269
7270         DRM_DEBUG_DRIVER("%s()\n", __func__);
7271
7272         i2c = create_i2c(link->ddc, link->link_index, &res);
7273         if (!i2c) {
7274                 DRM_ERROR("Failed to create i2c adapter data\n");
7275                 return -ENOMEM;
7276         }
7277
7278         aconnector->i2c = i2c;
7279         res = i2c_add_adapter(&i2c->base);
7280
7281         if (res) {
7282                 DRM_ERROR("Failed to register hw i2c %d\n", link->link_index);
7283                 goto out_free;
7284         }
7285
7286         connector_type = to_drm_connector_type(link->connector_signal);
7287
7288         res = drm_connector_init_with_ddc(
7289                         dm->ddev,
7290                         &aconnector->base,
7291                         &amdgpu_dm_connector_funcs,
7292                         connector_type,
7293                         &i2c->base);
7294
7295         if (res) {
7296                 DRM_ERROR("connector_init failed\n");
7297                 aconnector->connector_id = -1;
7298                 goto out_free;
7299         }
7300
7301         drm_connector_helper_add(
7302                         &aconnector->base,
7303                         &amdgpu_dm_connector_helper_funcs);
7304
7305         amdgpu_dm_connector_init_helper(
7306                 dm,
7307                 aconnector,
7308                 connector_type,
7309                 link,
7310                 link_index);
7311
7312         drm_connector_attach_encoder(
7313                 &aconnector->base, &aencoder->base);
7314
7315         if (connector_type == DRM_MODE_CONNECTOR_DisplayPort
7316                 || connector_type == DRM_MODE_CONNECTOR_eDP)
7317                 amdgpu_dm_initialize_dp_connector(dm, aconnector, link->link_index);
7318
7319 out_free:
7320         if (res) {
7321                 kfree(i2c);
7322                 aconnector->i2c = NULL;
7323         }
7324         return res;
7325 }
7326
7327 int amdgpu_dm_get_encoder_crtc_mask(struct amdgpu_device *adev)
7328 {
7329         switch (adev->mode_info.num_crtc) {
7330         case 1:
7331                 return 0x1;
7332         case 2:
7333                 return 0x3;
7334         case 3:
7335                 return 0x7;
7336         case 4:
7337                 return 0xf;
7338         case 5:
7339                 return 0x1f;
7340         case 6:
7341         default:
7342                 return 0x3f;
7343         }
7344 }
7345
7346 static int amdgpu_dm_encoder_init(struct drm_device *dev,
7347                                   struct amdgpu_encoder *aencoder,
7348                                   uint32_t link_index)
7349 {
7350         struct amdgpu_device *adev = drm_to_adev(dev);
7351
7352         int res = drm_encoder_init(dev,
7353                                    &aencoder->base,
7354                                    &amdgpu_dm_encoder_funcs,
7355                                    DRM_MODE_ENCODER_TMDS,
7356                                    NULL);
7357
7358         aencoder->base.possible_crtcs = amdgpu_dm_get_encoder_crtc_mask(adev);
7359
7360         if (!res)
7361                 aencoder->encoder_id = link_index;
7362         else
7363                 aencoder->encoder_id = -1;
7364
7365         drm_encoder_helper_add(&aencoder->base, &amdgpu_dm_encoder_helper_funcs);
7366
7367         return res;
7368 }
7369
7370 static void manage_dm_interrupts(struct amdgpu_device *adev,
7371                                  struct amdgpu_crtc *acrtc,
7372                                  bool enable)
7373 {
7374         /*
7375          * We have no guarantee that the frontend index maps to the same
7376          * backend index - some even map to more than one.
7377          *
7378          * TODO: Use a different interrupt or check DC itself for the mapping.
7379          */
7380         int irq_type =
7381                 amdgpu_display_crtc_idx_to_irq_type(
7382                         adev,
7383                         acrtc->crtc_id);
7384
7385         if (enable) {
7386                 drm_crtc_vblank_on(&acrtc->base);
7387                 amdgpu_irq_get(
7388                         adev,
7389                         &adev->pageflip_irq,
7390                         irq_type);
7391 #if defined(CONFIG_DRM_AMD_SECURE_DISPLAY)
7392                 amdgpu_irq_get(
7393                         adev,
7394                         &adev->vline0_irq,
7395                         irq_type);
7396 #endif
7397         } else {
7398 #if defined(CONFIG_DRM_AMD_SECURE_DISPLAY)
7399                 amdgpu_irq_put(
7400                         adev,
7401                         &adev->vline0_irq,
7402                         irq_type);
7403 #endif
7404                 amdgpu_irq_put(
7405                         adev,
7406                         &adev->pageflip_irq,
7407                         irq_type);
7408                 drm_crtc_vblank_off(&acrtc->base);
7409         }
7410 }
7411
7412 static void dm_update_pflip_irq_state(struct amdgpu_device *adev,
7413                                       struct amdgpu_crtc *acrtc)
7414 {
7415         int irq_type =
7416                 amdgpu_display_crtc_idx_to_irq_type(adev, acrtc->crtc_id);
7417
7418         /**
7419          * This reads the current state for the IRQ and force reapplies
7420          * the setting to hardware.
7421          */
7422         amdgpu_irq_update(adev, &adev->pageflip_irq, irq_type);
7423 }
7424
7425 static bool
7426 is_scaling_state_different(const struct dm_connector_state *dm_state,
7427                            const struct dm_connector_state *old_dm_state)
7428 {
7429         if (dm_state->scaling != old_dm_state->scaling)
7430                 return true;
7431         if (!dm_state->underscan_enable && old_dm_state->underscan_enable) {
7432                 if (old_dm_state->underscan_hborder != 0 && old_dm_state->underscan_vborder != 0)
7433                         return true;
7434         } else  if (dm_state->underscan_enable && !old_dm_state->underscan_enable) {
7435                 if (dm_state->underscan_hborder != 0 && dm_state->underscan_vborder != 0)
7436                         return true;
7437         } else if (dm_state->underscan_hborder != old_dm_state->underscan_hborder ||
7438                    dm_state->underscan_vborder != old_dm_state->underscan_vborder)
7439                 return true;
7440         return false;
7441 }
7442
7443 #ifdef CONFIG_DRM_AMD_DC_HDCP
7444 static bool is_content_protection_different(struct drm_crtc_state *new_crtc_state,
7445                                             struct drm_crtc_state *old_crtc_state,
7446                                             struct drm_connector_state *new_conn_state,
7447                                             struct drm_connector_state *old_conn_state,
7448                                             const struct drm_connector *connector,
7449                                             struct hdcp_workqueue *hdcp_w)
7450 {
7451         struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
7452         struct dm_connector_state *dm_con_state = to_dm_connector_state(connector->state);
7453
7454         pr_debug("[HDCP_DM] connector->index: %x connect_status: %x dpms: %x\n",
7455                 connector->index, connector->status, connector->dpms);
7456         pr_debug("[HDCP_DM] state protection old: %x new: %x\n",
7457                 old_conn_state->content_protection, new_conn_state->content_protection);
7458
7459         if (old_crtc_state)
7460                 pr_debug("[HDCP_DM] old crtc en: %x a: %x m: %x a-chg: %x c-chg: %x\n",
7461                 old_crtc_state->enable,
7462                 old_crtc_state->active,
7463                 old_crtc_state->mode_changed,
7464                 old_crtc_state->active_changed,
7465                 old_crtc_state->connectors_changed);
7466
7467         if (new_crtc_state)
7468                 pr_debug("[HDCP_DM] NEW crtc en: %x a: %x m: %x a-chg: %x c-chg: %x\n",
7469                 new_crtc_state->enable,
7470                 new_crtc_state->active,
7471                 new_crtc_state->mode_changed,
7472                 new_crtc_state->active_changed,
7473                 new_crtc_state->connectors_changed);
7474
7475         /* hdcp content type change */
7476         if (old_conn_state->hdcp_content_type != new_conn_state->hdcp_content_type &&
7477             new_conn_state->content_protection != DRM_MODE_CONTENT_PROTECTION_UNDESIRED) {
7478                 new_conn_state->content_protection = DRM_MODE_CONTENT_PROTECTION_DESIRED;
7479                 pr_debug("[HDCP_DM] Type0/1 change %s :true\n", __func__);
7480                 return true;
7481         }
7482
7483         /* CP is being re enabled, ignore this */
7484         if (old_conn_state->content_protection == DRM_MODE_CONTENT_PROTECTION_ENABLED &&
7485             new_conn_state->content_protection == DRM_MODE_CONTENT_PROTECTION_DESIRED) {
7486                 if (new_crtc_state && new_crtc_state->mode_changed) {
7487                         new_conn_state->content_protection = DRM_MODE_CONTENT_PROTECTION_DESIRED;
7488                         pr_debug("[HDCP_DM] ENABLED->DESIRED & mode_changed %s :true\n", __func__);
7489                         return true;
7490                 }
7491                 new_conn_state->content_protection = DRM_MODE_CONTENT_PROTECTION_ENABLED;
7492                 pr_debug("[HDCP_DM] ENABLED -> DESIRED %s :false\n", __func__);
7493                 return false;
7494         }
7495
7496         /* S3 resume case, since old state will always be 0 (UNDESIRED) and the restored state will be ENABLED
7497          *
7498          * Handles:     UNDESIRED -> ENABLED
7499          */
7500         if (old_conn_state->content_protection == DRM_MODE_CONTENT_PROTECTION_UNDESIRED &&
7501             new_conn_state->content_protection == DRM_MODE_CONTENT_PROTECTION_ENABLED)
7502                 new_conn_state->content_protection = DRM_MODE_CONTENT_PROTECTION_DESIRED;
7503
7504         /* Stream removed and re-enabled
7505          *
7506          * Can sometimes overlap with the HPD case,
7507          * thus set update_hdcp to false to avoid
7508          * setting HDCP multiple times.
7509          *
7510          * Handles:     DESIRED -> DESIRED (Special case)
7511          */
7512         if (!(old_conn_state->crtc && old_conn_state->crtc->enabled) &&
7513                 new_conn_state->crtc && new_conn_state->crtc->enabled &&
7514                 connector->state->content_protection == DRM_MODE_CONTENT_PROTECTION_DESIRED) {
7515                 dm_con_state->update_hdcp = false;
7516                 pr_debug("[HDCP_DM] DESIRED->DESIRED (Stream removed and re-enabled) %s :true\n",
7517                         __func__);
7518                 return true;
7519         }
7520
7521         /* Hot-plug, headless s3, dpms
7522          *
7523          * Only start HDCP if the display is connected/enabled.
7524          * update_hdcp flag will be set to false until the next
7525          * HPD comes in.
7526          *
7527          * Handles:     DESIRED -> DESIRED (Special case)
7528          */
7529         if (dm_con_state->update_hdcp &&
7530         new_conn_state->content_protection == DRM_MODE_CONTENT_PROTECTION_DESIRED &&
7531         connector->dpms == DRM_MODE_DPMS_ON && aconnector->dc_sink != NULL) {
7532                 dm_con_state->update_hdcp = false;
7533                 pr_debug("[HDCP_DM] DESIRED->DESIRED (Hot-plug, headless s3, dpms) %s :true\n",
7534                         __func__);
7535                 return true;
7536         }
7537
7538         if (old_conn_state->content_protection == new_conn_state->content_protection) {
7539                 if (new_conn_state->content_protection >= DRM_MODE_CONTENT_PROTECTION_DESIRED) {
7540                         if (new_crtc_state && new_crtc_state->mode_changed) {
7541                                 pr_debug("[HDCP_DM] DESIRED->DESIRED or ENABLE->ENABLE mode_change %s :true\n",
7542                                         __func__);
7543                                 return true;
7544                         }
7545                         pr_debug("[HDCP_DM] DESIRED->DESIRED & ENABLE->ENABLE %s :false\n",
7546                                 __func__);
7547                         return false;
7548                 }
7549
7550                 pr_debug("[HDCP_DM] UNDESIRED->UNDESIRED %s :false\n", __func__);
7551                 return false;
7552         }
7553
7554         if (new_conn_state->content_protection != DRM_MODE_CONTENT_PROTECTION_ENABLED) {
7555                 pr_debug("[HDCP_DM] UNDESIRED->DESIRED or DESIRED->UNDESIRED or ENABLED->UNDESIRED %s :true\n",
7556                         __func__);
7557                 return true;
7558         }
7559
7560         pr_debug("[HDCP_DM] DESIRED->ENABLED %s :false\n", __func__);
7561         return false;
7562 }
7563 #endif
7564
7565 static void remove_stream(struct amdgpu_device *adev,
7566                           struct amdgpu_crtc *acrtc,
7567                           struct dc_stream_state *stream)
7568 {
7569         /* this is the update mode case */
7570
7571         acrtc->otg_inst = -1;
7572         acrtc->enabled = false;
7573 }
7574
7575 static void prepare_flip_isr(struct amdgpu_crtc *acrtc)
7576 {
7577
7578         assert_spin_locked(&acrtc->base.dev->event_lock);
7579         WARN_ON(acrtc->event);
7580
7581         acrtc->event = acrtc->base.state->event;
7582
7583         /* Set the flip status */
7584         acrtc->pflip_status = AMDGPU_FLIP_SUBMITTED;
7585
7586         /* Mark this event as consumed */
7587         acrtc->base.state->event = NULL;
7588
7589         DC_LOG_PFLIP("crtc:%d, pflip_stat:AMDGPU_FLIP_SUBMITTED\n",
7590                      acrtc->crtc_id);
7591 }
7592
7593 static void update_freesync_state_on_stream(
7594         struct amdgpu_display_manager *dm,
7595         struct dm_crtc_state *new_crtc_state,
7596         struct dc_stream_state *new_stream,
7597         struct dc_plane_state *surface,
7598         u32 flip_timestamp_in_us)
7599 {
7600         struct mod_vrr_params vrr_params;
7601         struct dc_info_packet vrr_infopacket = {0};
7602         struct amdgpu_device *adev = dm->adev;
7603         struct amdgpu_crtc *acrtc = to_amdgpu_crtc(new_crtc_state->base.crtc);
7604         unsigned long flags;
7605         bool pack_sdp_v1_3 = false;
7606
7607         if (!new_stream)
7608                 return;
7609
7610         /*
7611          * TODO: Determine why min/max totals and vrefresh can be 0 here.
7612          * For now it's sufficient to just guard against these conditions.
7613          */
7614
7615         if (!new_stream->timing.h_total || !new_stream->timing.v_total)
7616                 return;
7617
7618         spin_lock_irqsave(&adev_to_drm(adev)->event_lock, flags);
7619         vrr_params = acrtc->dm_irq_params.vrr_params;
7620
7621         if (surface) {
7622                 mod_freesync_handle_preflip(
7623                         dm->freesync_module,
7624                         surface,
7625                         new_stream,
7626                         flip_timestamp_in_us,
7627                         &vrr_params);
7628
7629                 if (adev->family < AMDGPU_FAMILY_AI &&
7630                     amdgpu_dm_vrr_active(new_crtc_state)) {
7631                         mod_freesync_handle_v_update(dm->freesync_module,
7632                                                      new_stream, &vrr_params);
7633
7634                         /* Need to call this before the frame ends. */
7635                         dc_stream_adjust_vmin_vmax(dm->dc,
7636                                                    new_crtc_state->stream,
7637                                                    &vrr_params.adjust);
7638                 }
7639         }
7640
7641         mod_freesync_build_vrr_infopacket(
7642                 dm->freesync_module,
7643                 new_stream,
7644                 &vrr_params,
7645                 PACKET_TYPE_VRR,
7646                 TRANSFER_FUNC_UNKNOWN,
7647                 &vrr_infopacket,
7648                 pack_sdp_v1_3);
7649
7650         new_crtc_state->freesync_vrr_info_changed |=
7651                 (memcmp(&new_crtc_state->vrr_infopacket,
7652                         &vrr_infopacket,
7653                         sizeof(vrr_infopacket)) != 0);
7654
7655         acrtc->dm_irq_params.vrr_params = vrr_params;
7656         new_crtc_state->vrr_infopacket = vrr_infopacket;
7657
7658         new_stream->vrr_infopacket = vrr_infopacket;
7659         new_stream->allow_freesync = mod_freesync_get_freesync_enabled(&vrr_params);
7660
7661         if (new_crtc_state->freesync_vrr_info_changed)
7662                 DRM_DEBUG_KMS("VRR packet update: crtc=%u enabled=%d state=%d",
7663                               new_crtc_state->base.crtc->base.id,
7664                               (int)new_crtc_state->base.vrr_enabled,
7665                               (int)vrr_params.state);
7666
7667         spin_unlock_irqrestore(&adev_to_drm(adev)->event_lock, flags);
7668 }
7669
7670 static void update_stream_irq_parameters(
7671         struct amdgpu_display_manager *dm,
7672         struct dm_crtc_state *new_crtc_state)
7673 {
7674         struct dc_stream_state *new_stream = new_crtc_state->stream;
7675         struct mod_vrr_params vrr_params;
7676         struct mod_freesync_config config = new_crtc_state->freesync_config;
7677         struct amdgpu_device *adev = dm->adev;
7678         struct amdgpu_crtc *acrtc = to_amdgpu_crtc(new_crtc_state->base.crtc);
7679         unsigned long flags;
7680
7681         if (!new_stream)
7682                 return;
7683
7684         /*
7685          * TODO: Determine why min/max totals and vrefresh can be 0 here.
7686          * For now it's sufficient to just guard against these conditions.
7687          */
7688         if (!new_stream->timing.h_total || !new_stream->timing.v_total)
7689                 return;
7690
7691         spin_lock_irqsave(&adev_to_drm(adev)->event_lock, flags);
7692         vrr_params = acrtc->dm_irq_params.vrr_params;
7693
7694         if (new_crtc_state->vrr_supported &&
7695             config.min_refresh_in_uhz &&
7696             config.max_refresh_in_uhz) {
7697                 /*
7698                  * if freesync compatible mode was set, config.state will be set
7699                  * in atomic check
7700                  */
7701                 if (config.state == VRR_STATE_ACTIVE_FIXED && config.fixed_refresh_in_uhz &&
7702                     (!drm_atomic_crtc_needs_modeset(&new_crtc_state->base) ||
7703                      new_crtc_state->freesync_config.state == VRR_STATE_ACTIVE_FIXED)) {
7704                         vrr_params.max_refresh_in_uhz = config.max_refresh_in_uhz;
7705                         vrr_params.min_refresh_in_uhz = config.min_refresh_in_uhz;
7706                         vrr_params.fixed_refresh_in_uhz = config.fixed_refresh_in_uhz;
7707                         vrr_params.state = VRR_STATE_ACTIVE_FIXED;
7708                 } else {
7709                         config.state = new_crtc_state->base.vrr_enabled ?
7710                                                      VRR_STATE_ACTIVE_VARIABLE :
7711                                                      VRR_STATE_INACTIVE;
7712                 }
7713         } else {
7714                 config.state = VRR_STATE_UNSUPPORTED;
7715         }
7716
7717         mod_freesync_build_vrr_params(dm->freesync_module,
7718                                       new_stream,
7719                                       &config, &vrr_params);
7720
7721         new_crtc_state->freesync_config = config;
7722         /* Copy state for access from DM IRQ handler */
7723         acrtc->dm_irq_params.freesync_config = config;
7724         acrtc->dm_irq_params.active_planes = new_crtc_state->active_planes;
7725         acrtc->dm_irq_params.vrr_params = vrr_params;
7726         spin_unlock_irqrestore(&adev_to_drm(adev)->event_lock, flags);
7727 }
7728
7729 static void amdgpu_dm_handle_vrr_transition(struct dm_crtc_state *old_state,
7730                                             struct dm_crtc_state *new_state)
7731 {
7732         bool old_vrr_active = amdgpu_dm_vrr_active(old_state);
7733         bool new_vrr_active = amdgpu_dm_vrr_active(new_state);
7734
7735         if (!old_vrr_active && new_vrr_active) {
7736                 /* Transition VRR inactive -> active:
7737                  * While VRR is active, we must not disable vblank irq, as a
7738                  * reenable after disable would compute bogus vblank/pflip
7739                  * timestamps if it likely happened inside display front-porch.
7740                  *
7741                  * We also need vupdate irq for the actual core vblank handling
7742                  * at end of vblank.
7743                  */
7744                 WARN_ON(dm_set_vupdate_irq(new_state->base.crtc, true) != 0);
7745                 WARN_ON(drm_crtc_vblank_get(new_state->base.crtc) != 0);
7746                 DRM_DEBUG_DRIVER("%s: crtc=%u VRR off->on: Get vblank ref\n",
7747                                  __func__, new_state->base.crtc->base.id);
7748         } else if (old_vrr_active && !new_vrr_active) {
7749                 /* Transition VRR active -> inactive:
7750                  * Allow vblank irq disable again for fixed refresh rate.
7751                  */
7752                 WARN_ON(dm_set_vupdate_irq(new_state->base.crtc, false) != 0);
7753                 drm_crtc_vblank_put(new_state->base.crtc);
7754                 DRM_DEBUG_DRIVER("%s: crtc=%u VRR on->off: Drop vblank ref\n",
7755                                  __func__, new_state->base.crtc->base.id);
7756         }
7757 }
7758
7759 static void amdgpu_dm_commit_cursors(struct drm_atomic_state *state)
7760 {
7761         struct drm_plane *plane;
7762         struct drm_plane_state *old_plane_state;
7763         int i;
7764
7765         /*
7766          * TODO: Make this per-stream so we don't issue redundant updates for
7767          * commits with multiple streams.
7768          */
7769         for_each_old_plane_in_state(state, plane, old_plane_state, i)
7770                 if (plane->type == DRM_PLANE_TYPE_CURSOR)
7771                         handle_cursor_update(plane, old_plane_state);
7772 }
7773
7774 static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
7775                                     struct dc_state *dc_state,
7776                                     struct drm_device *dev,
7777                                     struct amdgpu_display_manager *dm,
7778                                     struct drm_crtc *pcrtc,
7779                                     bool wait_for_vblank)
7780 {
7781         u32 i;
7782         u64 timestamp_ns;
7783         struct drm_plane *plane;
7784         struct drm_plane_state *old_plane_state, *new_plane_state;
7785         struct amdgpu_crtc *acrtc_attach = to_amdgpu_crtc(pcrtc);
7786         struct drm_crtc_state *new_pcrtc_state =
7787                         drm_atomic_get_new_crtc_state(state, pcrtc);
7788         struct dm_crtc_state *acrtc_state = to_dm_crtc_state(new_pcrtc_state);
7789         struct dm_crtc_state *dm_old_crtc_state =
7790                         to_dm_crtc_state(drm_atomic_get_old_crtc_state(state, pcrtc));
7791         int planes_count = 0, vpos, hpos;
7792         unsigned long flags;
7793         u32 target_vblank, last_flip_vblank;
7794         bool vrr_active = amdgpu_dm_vrr_active(acrtc_state);
7795         bool cursor_update = false;
7796         bool pflip_present = false;
7797         struct {
7798                 struct dc_surface_update surface_updates[MAX_SURFACES];
7799                 struct dc_plane_info plane_infos[MAX_SURFACES];
7800                 struct dc_scaling_info scaling_infos[MAX_SURFACES];
7801                 struct dc_flip_addrs flip_addrs[MAX_SURFACES];
7802                 struct dc_stream_update stream_update;
7803         } *bundle;
7804
7805         bundle = kzalloc(sizeof(*bundle), GFP_KERNEL);
7806
7807         if (!bundle) {
7808                 dm_error("Failed to allocate update bundle\n");
7809                 goto cleanup;
7810         }
7811
7812         /*
7813          * Disable the cursor first if we're disabling all the planes.
7814          * It'll remain on the screen after the planes are re-enabled
7815          * if we don't.
7816          */
7817         if (acrtc_state->active_planes == 0)
7818                 amdgpu_dm_commit_cursors(state);
7819
7820         /* update planes when needed */
7821         for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, i) {
7822                 struct drm_crtc *crtc = new_plane_state->crtc;
7823                 struct drm_crtc_state *new_crtc_state;
7824                 struct drm_framebuffer *fb = new_plane_state->fb;
7825                 struct amdgpu_framebuffer *afb = (struct amdgpu_framebuffer *)fb;
7826                 bool plane_needs_flip;
7827                 struct dc_plane_state *dc_plane;
7828                 struct dm_plane_state *dm_new_plane_state = to_dm_plane_state(new_plane_state);
7829
7830                 /* Cursor plane is handled after stream updates */
7831                 if (plane->type == DRM_PLANE_TYPE_CURSOR) {
7832                         if ((fb && crtc == pcrtc) ||
7833                             (old_plane_state->fb && old_plane_state->crtc == pcrtc))
7834                                 cursor_update = true;
7835
7836                         continue;
7837                 }
7838
7839                 if (!fb || !crtc || pcrtc != crtc)
7840                         continue;
7841
7842                 new_crtc_state = drm_atomic_get_new_crtc_state(state, crtc);
7843                 if (!new_crtc_state->active)
7844                         continue;
7845
7846                 dc_plane = dm_new_plane_state->dc_state;
7847
7848                 bundle->surface_updates[planes_count].surface = dc_plane;
7849                 if (new_pcrtc_state->color_mgmt_changed) {
7850                         bundle->surface_updates[planes_count].gamma = dc_plane->gamma_correction;
7851                         bundle->surface_updates[planes_count].in_transfer_func = dc_plane->in_transfer_func;
7852                         bundle->surface_updates[planes_count].gamut_remap_matrix = &dc_plane->gamut_remap_matrix;
7853                 }
7854
7855                 fill_dc_scaling_info(dm->adev, new_plane_state,
7856                                      &bundle->scaling_infos[planes_count]);
7857
7858                 bundle->surface_updates[planes_count].scaling_info =
7859                         &bundle->scaling_infos[planes_count];
7860
7861                 plane_needs_flip = old_plane_state->fb && new_plane_state->fb;
7862
7863                 pflip_present = pflip_present || plane_needs_flip;
7864
7865                 if (!plane_needs_flip) {
7866                         planes_count += 1;
7867                         continue;
7868                 }
7869
7870                 fill_dc_plane_info_and_addr(
7871                         dm->adev, new_plane_state,
7872                         afb->tiling_flags,
7873                         &bundle->plane_infos[planes_count],
7874                         &bundle->flip_addrs[planes_count].address,
7875                         afb->tmz_surface, false);
7876
7877                 drm_dbg_state(state->dev, "plane: id=%d dcc_en=%d\n",
7878                                  new_plane_state->plane->index,
7879                                  bundle->plane_infos[planes_count].dcc.enable);
7880
7881                 bundle->surface_updates[planes_count].plane_info =
7882                         &bundle->plane_infos[planes_count];
7883
7884                 if (acrtc_state->stream->link->psr_settings.psr_feature_enabled)
7885                         fill_dc_dirty_rects(plane, old_plane_state,
7886                                             new_plane_state, new_crtc_state,
7887                                             &bundle->flip_addrs[planes_count]);
7888
7889                 /*
7890                  * Only allow immediate flips for fast updates that don't
7891                  * change FB pitch, DCC state, rotation or mirroing.
7892                  */
7893                 bundle->flip_addrs[planes_count].flip_immediate =
7894                         crtc->state->async_flip &&
7895                         acrtc_state->update_type == UPDATE_TYPE_FAST;
7896
7897                 timestamp_ns = ktime_get_ns();
7898                 bundle->flip_addrs[planes_count].flip_timestamp_in_us = div_u64(timestamp_ns, 1000);
7899                 bundle->surface_updates[planes_count].flip_addr = &bundle->flip_addrs[planes_count];
7900                 bundle->surface_updates[planes_count].surface = dc_plane;
7901
7902                 if (!bundle->surface_updates[planes_count].surface) {
7903                         DRM_ERROR("No surface for CRTC: id=%d\n",
7904                                         acrtc_attach->crtc_id);
7905                         continue;
7906                 }
7907
7908                 if (plane == pcrtc->primary)
7909                         update_freesync_state_on_stream(
7910                                 dm,
7911                                 acrtc_state,
7912                                 acrtc_state->stream,
7913                                 dc_plane,
7914                                 bundle->flip_addrs[planes_count].flip_timestamp_in_us);
7915
7916                 drm_dbg_state(state->dev, "%s Flipping to hi: 0x%x, low: 0x%x\n",
7917                                  __func__,
7918                                  bundle->flip_addrs[planes_count].address.grph.addr.high_part,
7919                                  bundle->flip_addrs[planes_count].address.grph.addr.low_part);
7920
7921                 planes_count += 1;
7922
7923         }
7924
7925         if (pflip_present) {
7926                 if (!vrr_active) {
7927                         /* Use old throttling in non-vrr fixed refresh rate mode
7928                          * to keep flip scheduling based on target vblank counts
7929                          * working in a backwards compatible way, e.g., for
7930                          * clients using the GLX_OML_sync_control extension or
7931                          * DRI3/Present extension with defined target_msc.
7932                          */
7933                         last_flip_vblank = amdgpu_get_vblank_counter_kms(pcrtc);
7934                 }
7935                 else {
7936                         /* For variable refresh rate mode only:
7937                          * Get vblank of last completed flip to avoid > 1 vrr
7938                          * flips per video frame by use of throttling, but allow
7939                          * flip programming anywhere in the possibly large
7940                          * variable vrr vblank interval for fine-grained flip
7941                          * timing control and more opportunity to avoid stutter
7942                          * on late submission of flips.
7943                          */
7944                         spin_lock_irqsave(&pcrtc->dev->event_lock, flags);
7945                         last_flip_vblank = acrtc_attach->dm_irq_params.last_flip_vblank;
7946                         spin_unlock_irqrestore(&pcrtc->dev->event_lock, flags);
7947                 }
7948
7949                 target_vblank = last_flip_vblank + wait_for_vblank;
7950
7951                 /*
7952                  * Wait until we're out of the vertical blank period before the one
7953                  * targeted by the flip
7954                  */
7955                 while ((acrtc_attach->enabled &&
7956                         (amdgpu_display_get_crtc_scanoutpos(dm->ddev, acrtc_attach->crtc_id,
7957                                                             0, &vpos, &hpos, NULL,
7958                                                             NULL, &pcrtc->hwmode)
7959                          & (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_IN_VBLANK)) ==
7960                         (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_IN_VBLANK) &&
7961                         (int)(target_vblank -
7962                           amdgpu_get_vblank_counter_kms(pcrtc)) > 0)) {
7963                         usleep_range(1000, 1100);
7964                 }
7965
7966                 /**
7967                  * Prepare the flip event for the pageflip interrupt to handle.
7968                  *
7969                  * This only works in the case where we've already turned on the
7970                  * appropriate hardware blocks (eg. HUBP) so in the transition case
7971                  * from 0 -> n planes we have to skip a hardware generated event
7972                  * and rely on sending it from software.
7973                  */
7974                 if (acrtc_attach->base.state->event &&
7975                     acrtc_state->active_planes > 0) {
7976                         drm_crtc_vblank_get(pcrtc);
7977
7978                         spin_lock_irqsave(&pcrtc->dev->event_lock, flags);
7979
7980                         WARN_ON(acrtc_attach->pflip_status != AMDGPU_FLIP_NONE);
7981                         prepare_flip_isr(acrtc_attach);
7982
7983                         spin_unlock_irqrestore(&pcrtc->dev->event_lock, flags);
7984                 }
7985
7986                 if (acrtc_state->stream) {
7987                         if (acrtc_state->freesync_vrr_info_changed)
7988                                 bundle->stream_update.vrr_infopacket =
7989                                         &acrtc_state->stream->vrr_infopacket;
7990                 }
7991         } else if (cursor_update && acrtc_state->active_planes > 0 &&
7992                    acrtc_attach->base.state->event) {
7993                 drm_crtc_vblank_get(pcrtc);
7994
7995                 spin_lock_irqsave(&pcrtc->dev->event_lock, flags);
7996
7997                 acrtc_attach->event = acrtc_attach->base.state->event;
7998                 acrtc_attach->base.state->event = NULL;
7999
8000                 spin_unlock_irqrestore(&pcrtc->dev->event_lock, flags);
8001         }
8002
8003         /* Update the planes if changed or disable if we don't have any. */
8004         if ((planes_count || acrtc_state->active_planes == 0) &&
8005                 acrtc_state->stream) {
8006                 /*
8007                  * If PSR or idle optimizations are enabled then flush out
8008                  * any pending work before hardware programming.
8009                  */
8010                 if (dm->vblank_control_workqueue)
8011                         flush_workqueue(dm->vblank_control_workqueue);
8012
8013                 bundle->stream_update.stream = acrtc_state->stream;
8014                 if (new_pcrtc_state->mode_changed) {
8015                         bundle->stream_update.src = acrtc_state->stream->src;
8016                         bundle->stream_update.dst = acrtc_state->stream->dst;
8017                 }
8018
8019                 if (new_pcrtc_state->color_mgmt_changed) {
8020                         /*
8021                          * TODO: This isn't fully correct since we've actually
8022                          * already modified the stream in place.
8023                          */
8024                         bundle->stream_update.gamut_remap =
8025                                 &acrtc_state->stream->gamut_remap_matrix;
8026                         bundle->stream_update.output_csc_transform =
8027                                 &acrtc_state->stream->csc_color_matrix;
8028                         bundle->stream_update.out_transfer_func =
8029                                 acrtc_state->stream->out_transfer_func;
8030                 }
8031
8032                 acrtc_state->stream->abm_level = acrtc_state->abm_level;
8033                 if (acrtc_state->abm_level != dm_old_crtc_state->abm_level)
8034                         bundle->stream_update.abm_level = &acrtc_state->abm_level;
8035
8036                 /*
8037                  * If FreeSync state on the stream has changed then we need to
8038                  * re-adjust the min/max bounds now that DC doesn't handle this
8039                  * as part of commit.
8040                  */
8041                 if (is_dc_timing_adjust_needed(dm_old_crtc_state, acrtc_state)) {
8042                         spin_lock_irqsave(&pcrtc->dev->event_lock, flags);
8043                         dc_stream_adjust_vmin_vmax(
8044                                 dm->dc, acrtc_state->stream,
8045                                 &acrtc_attach->dm_irq_params.vrr_params.adjust);
8046                         spin_unlock_irqrestore(&pcrtc->dev->event_lock, flags);
8047                 }
8048                 mutex_lock(&dm->dc_lock);
8049                 if ((acrtc_state->update_type > UPDATE_TYPE_FAST) &&
8050                                 acrtc_state->stream->link->psr_settings.psr_allow_active)
8051                         amdgpu_dm_psr_disable(acrtc_state->stream);
8052
8053                 dc_commit_updates_for_stream(dm->dc,
8054                                                      bundle->surface_updates,
8055                                                      planes_count,
8056                                                      acrtc_state->stream,
8057                                                      &bundle->stream_update,
8058                                                      dc_state);
8059
8060                 /**
8061                  * Enable or disable the interrupts on the backend.
8062                  *
8063                  * Most pipes are put into power gating when unused.
8064                  *
8065                  * When power gating is enabled on a pipe we lose the
8066                  * interrupt enablement state when power gating is disabled.
8067                  *
8068                  * So we need to update the IRQ control state in hardware
8069                  * whenever the pipe turns on (since it could be previously
8070                  * power gated) or off (since some pipes can't be power gated
8071                  * on some ASICs).
8072                  */
8073                 if (dm_old_crtc_state->active_planes != acrtc_state->active_planes)
8074                         dm_update_pflip_irq_state(drm_to_adev(dev),
8075                                                   acrtc_attach);
8076
8077                 if ((acrtc_state->update_type > UPDATE_TYPE_FAST) &&
8078                                 acrtc_state->stream->link->psr_settings.psr_version != DC_PSR_VERSION_UNSUPPORTED &&
8079                                 !acrtc_state->stream->link->psr_settings.psr_feature_enabled)
8080                         amdgpu_dm_link_setup_psr(acrtc_state->stream);
8081
8082                 /* Decrement skip count when PSR is enabled and we're doing fast updates. */
8083                 if (acrtc_state->update_type == UPDATE_TYPE_FAST &&
8084                     acrtc_state->stream->link->psr_settings.psr_feature_enabled) {
8085                         struct amdgpu_dm_connector *aconn =
8086                                 (struct amdgpu_dm_connector *)acrtc_state->stream->dm_stream_context;
8087
8088                         if (aconn->psr_skip_count > 0)
8089                                 aconn->psr_skip_count--;
8090
8091                         /* Allow PSR when skip count is 0. */
8092                         acrtc_attach->dm_irq_params.allow_psr_entry = !aconn->psr_skip_count;
8093
8094                         /*
8095                          * If sink supports PSR SU, there is no need to rely on
8096                          * a vblank event disable request to enable PSR. PSR SU
8097                          * can be enabled immediately once OS demonstrates an
8098                          * adequate number of fast atomic commits to notify KMD
8099                          * of update events. See `vblank_control_worker()`.
8100                          */
8101                         if (acrtc_state->stream->link->psr_settings.psr_version >= DC_PSR_VERSION_SU_1 &&
8102                             acrtc_attach->dm_irq_params.allow_psr_entry &&
8103 #ifdef CONFIG_DRM_AMD_SECURE_DISPLAY
8104                             !amdgpu_dm_crc_window_is_activated(acrtc_state->base.crtc) &&
8105 #endif
8106                             !acrtc_state->stream->link->psr_settings.psr_allow_active)
8107                                 amdgpu_dm_psr_enable(acrtc_state->stream);
8108                 } else {
8109                         acrtc_attach->dm_irq_params.allow_psr_entry = false;
8110                 }
8111
8112                 mutex_unlock(&dm->dc_lock);
8113         }
8114
8115         /*
8116          * Update cursor state *after* programming all the planes.
8117          * This avoids redundant programming in the case where we're going
8118          * to be disabling a single plane - those pipes are being disabled.
8119          */
8120         if (acrtc_state->active_planes)
8121                 amdgpu_dm_commit_cursors(state);
8122
8123 cleanup:
8124         kfree(bundle);
8125 }
8126
8127 static void amdgpu_dm_commit_audio(struct drm_device *dev,
8128                                    struct drm_atomic_state *state)
8129 {
8130         struct amdgpu_device *adev = drm_to_adev(dev);
8131         struct amdgpu_dm_connector *aconnector;
8132         struct drm_connector *connector;
8133         struct drm_connector_state *old_con_state, *new_con_state;
8134         struct drm_crtc_state *new_crtc_state;
8135         struct dm_crtc_state *new_dm_crtc_state;
8136         const struct dc_stream_status *status;
8137         int i, inst;
8138
8139         /* Notify device removals. */
8140         for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) {
8141                 if (old_con_state->crtc != new_con_state->crtc) {
8142                         /* CRTC changes require notification. */
8143                         goto notify;
8144                 }
8145
8146                 if (!new_con_state->crtc)
8147                         continue;
8148
8149                 new_crtc_state = drm_atomic_get_new_crtc_state(
8150                         state, new_con_state->crtc);
8151
8152                 if (!new_crtc_state)
8153                         continue;
8154
8155                 if (!drm_atomic_crtc_needs_modeset(new_crtc_state))
8156                         continue;
8157
8158         notify:
8159                 aconnector = to_amdgpu_dm_connector(connector);
8160
8161                 mutex_lock(&adev->dm.audio_lock);
8162                 inst = aconnector->audio_inst;
8163                 aconnector->audio_inst = -1;
8164                 mutex_unlock(&adev->dm.audio_lock);
8165
8166                 amdgpu_dm_audio_eld_notify(adev, inst);
8167         }
8168
8169         /* Notify audio device additions. */
8170         for_each_new_connector_in_state(state, connector, new_con_state, i) {
8171                 if (!new_con_state->crtc)
8172                         continue;
8173
8174                 new_crtc_state = drm_atomic_get_new_crtc_state(
8175                         state, new_con_state->crtc);
8176
8177                 if (!new_crtc_state)
8178                         continue;
8179
8180                 if (!drm_atomic_crtc_needs_modeset(new_crtc_state))
8181                         continue;
8182
8183                 new_dm_crtc_state = to_dm_crtc_state(new_crtc_state);
8184                 if (!new_dm_crtc_state->stream)
8185                         continue;
8186
8187                 status = dc_stream_get_status(new_dm_crtc_state->stream);
8188                 if (!status)
8189                         continue;
8190
8191                 aconnector = to_amdgpu_dm_connector(connector);
8192
8193                 mutex_lock(&adev->dm.audio_lock);
8194                 inst = status->audio_inst;
8195                 aconnector->audio_inst = inst;
8196                 mutex_unlock(&adev->dm.audio_lock);
8197
8198                 amdgpu_dm_audio_eld_notify(adev, inst);
8199         }
8200 }
8201
8202 /*
8203  * amdgpu_dm_crtc_copy_transient_flags - copy mirrored flags from DRM to DC
8204  * @crtc_state: the DRM CRTC state
8205  * @stream_state: the DC stream state.
8206  *
8207  * Copy the mirrored transient state flags from DRM, to DC. It is used to bring
8208  * a dc_stream_state's flags in sync with a drm_crtc_state's flags.
8209  */
8210 static void amdgpu_dm_crtc_copy_transient_flags(struct drm_crtc_state *crtc_state,
8211                                                 struct dc_stream_state *stream_state)
8212 {
8213         stream_state->mode_changed = drm_atomic_crtc_needs_modeset(crtc_state);
8214 }
8215
8216 /**
8217  * amdgpu_dm_atomic_commit_tail() - AMDgpu DM's commit tail implementation.
8218  * @state: The atomic state to commit
8219  *
8220  * This will tell DC to commit the constructed DC state from atomic_check,
8221  * programming the hardware. Any failures here implies a hardware failure, since
8222  * atomic check should have filtered anything non-kosher.
8223  */
8224 static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
8225 {
8226         struct drm_device *dev = state->dev;
8227         struct amdgpu_device *adev = drm_to_adev(dev);
8228         struct amdgpu_display_manager *dm = &adev->dm;
8229         struct dm_atomic_state *dm_state;
8230         struct dc_state *dc_state = NULL, *dc_state_temp = NULL;
8231         u32 i, j;
8232         struct drm_crtc *crtc;
8233         struct drm_crtc_state *old_crtc_state, *new_crtc_state;
8234         unsigned long flags;
8235         bool wait_for_vblank = true;
8236         struct drm_connector *connector;
8237         struct drm_connector_state *old_con_state, *new_con_state;
8238         struct dm_crtc_state *dm_old_crtc_state, *dm_new_crtc_state;
8239         int crtc_disable_count = 0;
8240         bool mode_set_reset_required = false;
8241         int r;
8242
8243         trace_amdgpu_dm_atomic_commit_tail_begin(state);
8244
8245         r = drm_atomic_helper_wait_for_fences(dev, state, false);
8246         if (unlikely(r))
8247                 DRM_ERROR("Waiting for fences timed out!");
8248
8249         drm_atomic_helper_update_legacy_modeset_state(dev, state);
8250         drm_dp_mst_atomic_wait_for_dependencies(state);
8251
8252         dm_state = dm_atomic_get_new_state(state);
8253         if (dm_state && dm_state->context) {
8254                 dc_state = dm_state->context;
8255         } else {
8256                 /* No state changes, retain current state. */
8257                 dc_state_temp = dc_create_state(dm->dc);
8258                 ASSERT(dc_state_temp);
8259                 dc_state = dc_state_temp;
8260                 dc_resource_state_copy_construct_current(dm->dc, dc_state);
8261         }
8262
8263         for_each_oldnew_crtc_in_state (state, crtc, old_crtc_state,
8264                                        new_crtc_state, i) {
8265                 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
8266
8267                 dm_old_crtc_state = to_dm_crtc_state(old_crtc_state);
8268
8269                 if (old_crtc_state->active &&
8270                     (!new_crtc_state->active ||
8271                      drm_atomic_crtc_needs_modeset(new_crtc_state))) {
8272                         manage_dm_interrupts(adev, acrtc, false);
8273                         dc_stream_release(dm_old_crtc_state->stream);
8274                 }
8275         }
8276
8277         drm_atomic_helper_calc_timestamping_constants(state);
8278
8279         /* update changed items */
8280         for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
8281                 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
8282
8283                 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
8284                 dm_old_crtc_state = to_dm_crtc_state(old_crtc_state);
8285
8286                 drm_dbg_state(state->dev,
8287                         "amdgpu_crtc id:%d crtc_state_flags: enable:%d, active:%d, "
8288                         "planes_changed:%d, mode_changed:%d,active_changed:%d,"
8289                         "connectors_changed:%d\n",
8290                         acrtc->crtc_id,
8291                         new_crtc_state->enable,
8292                         new_crtc_state->active,
8293                         new_crtc_state->planes_changed,
8294                         new_crtc_state->mode_changed,
8295                         new_crtc_state->active_changed,
8296                         new_crtc_state->connectors_changed);
8297
8298                 /* Disable cursor if disabling crtc */
8299                 if (old_crtc_state->active && !new_crtc_state->active) {
8300                         struct dc_cursor_position position;
8301
8302                         memset(&position, 0, sizeof(position));
8303                         mutex_lock(&dm->dc_lock);
8304                         dc_stream_set_cursor_position(dm_old_crtc_state->stream, &position);
8305                         mutex_unlock(&dm->dc_lock);
8306                 }
8307
8308                 /* Copy all transient state flags into dc state */
8309                 if (dm_new_crtc_state->stream) {
8310                         amdgpu_dm_crtc_copy_transient_flags(&dm_new_crtc_state->base,
8311                                                             dm_new_crtc_state->stream);
8312                 }
8313
8314                 /* handles headless hotplug case, updating new_state and
8315                  * aconnector as needed
8316                  */
8317
8318                 if (modeset_required(new_crtc_state, dm_new_crtc_state->stream, dm_old_crtc_state->stream)) {
8319
8320                         DRM_DEBUG_ATOMIC("Atomic commit: SET crtc id %d: [%p]\n", acrtc->crtc_id, acrtc);
8321
8322                         if (!dm_new_crtc_state->stream) {
8323                                 /*
8324                                  * this could happen because of issues with
8325                                  * userspace notifications delivery.
8326                                  * In this case userspace tries to set mode on
8327                                  * display which is disconnected in fact.
8328                                  * dc_sink is NULL in this case on aconnector.
8329                                  * We expect reset mode will come soon.
8330                                  *
8331                                  * This can also happen when unplug is done
8332                                  * during resume sequence ended
8333                                  *
8334                                  * In this case, we want to pretend we still
8335                                  * have a sink to keep the pipe running so that
8336                                  * hw state is consistent with the sw state
8337                                  */
8338                                 DRM_DEBUG_DRIVER("%s: Failed to create new stream for crtc %d\n",
8339                                                 __func__, acrtc->base.base.id);
8340                                 continue;
8341                         }
8342
8343                         if (dm_old_crtc_state->stream)
8344                                 remove_stream(adev, acrtc, dm_old_crtc_state->stream);
8345
8346                         pm_runtime_get_noresume(dev->dev);
8347
8348                         acrtc->enabled = true;
8349                         acrtc->hw_mode = new_crtc_state->mode;
8350                         crtc->hwmode = new_crtc_state->mode;
8351                         mode_set_reset_required = true;
8352                 } else if (modereset_required(new_crtc_state)) {
8353                         DRM_DEBUG_ATOMIC("Atomic commit: RESET. crtc id %d:[%p]\n", acrtc->crtc_id, acrtc);
8354                         /* i.e. reset mode */
8355                         if (dm_old_crtc_state->stream)
8356                                 remove_stream(adev, acrtc, dm_old_crtc_state->stream);
8357
8358                         mode_set_reset_required = true;
8359                 }
8360         } /* for_each_crtc_in_state() */
8361
8362         if (dc_state) {
8363                 /* if there mode set or reset, disable eDP PSR */
8364                 if (mode_set_reset_required) {
8365                         if (dm->vblank_control_workqueue)
8366                                 flush_workqueue(dm->vblank_control_workqueue);
8367
8368                         amdgpu_dm_psr_disable_all(dm);
8369                 }
8370
8371                 dm_enable_per_frame_crtc_master_sync(dc_state);
8372                 mutex_lock(&dm->dc_lock);
8373                 WARN_ON(!dc_commit_state(dm->dc, dc_state));
8374
8375                 /* Allow idle optimization when vblank count is 0 for display off */
8376                 if (dm->active_vblank_irq_count == 0)
8377                         dc_allow_idle_optimizations(dm->dc, true);
8378                 mutex_unlock(&dm->dc_lock);
8379         }
8380
8381         for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
8382                 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
8383
8384                 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
8385
8386                 if (dm_new_crtc_state->stream != NULL) {
8387                         const struct dc_stream_status *status =
8388                                         dc_stream_get_status(dm_new_crtc_state->stream);
8389
8390                         if (!status)
8391                                 status = dc_stream_get_status_from_state(dc_state,
8392                                                                          dm_new_crtc_state->stream);
8393                         if (!status)
8394                                 DC_ERR("got no status for stream %p on acrtc%p\n", dm_new_crtc_state->stream, acrtc);
8395                         else
8396                                 acrtc->otg_inst = status->primary_otg_inst;
8397                 }
8398         }
8399 #ifdef CONFIG_DRM_AMD_DC_HDCP
8400         for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) {
8401                 struct dm_connector_state *dm_new_con_state = to_dm_connector_state(new_con_state);
8402                 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(dm_new_con_state->base.crtc);
8403                 struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
8404
8405                 pr_debug("[HDCP_DM] -------------- i : %x ----------\n", i);
8406
8407                 if (!connector)
8408                         continue;
8409
8410                 pr_debug("[HDCP_DM] connector->index: %x connect_status: %x dpms: %x\n",
8411                         connector->index, connector->status, connector->dpms);
8412                 pr_debug("[HDCP_DM] state protection old: %x new: %x\n",
8413                         old_con_state->content_protection, new_con_state->content_protection);
8414
8415                 if (aconnector->dc_sink) {
8416                         if (aconnector->dc_sink->sink_signal != SIGNAL_TYPE_VIRTUAL &&
8417                                 aconnector->dc_sink->sink_signal != SIGNAL_TYPE_NONE) {
8418                                 pr_debug("[HDCP_DM] pipe_ctx dispname=%s\n",
8419                                 aconnector->dc_sink->edid_caps.display_name);
8420                         }
8421                 }
8422
8423                 new_crtc_state = NULL;
8424                 old_crtc_state = NULL;
8425
8426                 if (acrtc) {
8427                         new_crtc_state = drm_atomic_get_new_crtc_state(state, &acrtc->base);
8428                         old_crtc_state = drm_atomic_get_old_crtc_state(state, &acrtc->base);
8429                 }
8430
8431                 if (old_crtc_state)
8432                         pr_debug("old crtc en: %x a: %x m: %x a-chg: %x c-chg: %x\n",
8433                         old_crtc_state->enable,
8434                         old_crtc_state->active,
8435                         old_crtc_state->mode_changed,
8436                         old_crtc_state->active_changed,
8437                         old_crtc_state->connectors_changed);
8438
8439                 if (new_crtc_state)
8440                         pr_debug("NEW crtc en: %x a: %x m: %x a-chg: %x c-chg: %x\n",
8441                         new_crtc_state->enable,
8442                         new_crtc_state->active,
8443                         new_crtc_state->mode_changed,
8444                         new_crtc_state->active_changed,
8445                         new_crtc_state->connectors_changed);
8446         }
8447
8448         for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) {
8449                 struct dm_connector_state *dm_new_con_state = to_dm_connector_state(new_con_state);
8450                 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(dm_new_con_state->base.crtc);
8451                 struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
8452
8453                 new_crtc_state = NULL;
8454                 old_crtc_state = NULL;
8455
8456                 if (acrtc) {
8457                         new_crtc_state = drm_atomic_get_new_crtc_state(state, &acrtc->base);
8458                         old_crtc_state = drm_atomic_get_old_crtc_state(state, &acrtc->base);
8459                 }
8460
8461                 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
8462
8463                 if (dm_new_crtc_state && dm_new_crtc_state->stream == NULL &&
8464                     connector->state->content_protection == DRM_MODE_CONTENT_PROTECTION_ENABLED) {
8465                         hdcp_reset_display(adev->dm.hdcp_workqueue, aconnector->dc_link->link_index);
8466                         new_con_state->content_protection = DRM_MODE_CONTENT_PROTECTION_DESIRED;
8467                         dm_new_con_state->update_hdcp = true;
8468                         continue;
8469                 }
8470
8471                 if (is_content_protection_different(new_crtc_state, old_crtc_state, new_con_state,
8472                                                                                         old_con_state, connector, adev->dm.hdcp_workqueue)) {
8473                         /* when display is unplugged from mst hub, connctor will
8474                          * be destroyed within dm_dp_mst_connector_destroy. connector
8475                          * hdcp perperties, like type, undesired, desired, enabled,
8476                          * will be lost. So, save hdcp properties into hdcp_work within
8477                          * amdgpu_dm_atomic_commit_tail. if the same display is
8478                          * plugged back with same display index, its hdcp properties
8479                          * will be retrieved from hdcp_work within dm_dp_mst_get_modes
8480                          */
8481
8482                         bool enable_encryption = false;
8483
8484                         if (new_con_state->content_protection == DRM_MODE_CONTENT_PROTECTION_DESIRED)
8485                                 enable_encryption = true;
8486
8487                         if (aconnector->dc_link && aconnector->dc_sink &&
8488                                 aconnector->dc_link->type == dc_connection_mst_branch) {
8489                                 struct hdcp_workqueue *hdcp_work = adev->dm.hdcp_workqueue;
8490                                 struct hdcp_workqueue *hdcp_w =
8491                                         &hdcp_work[aconnector->dc_link->link_index];
8492
8493                                 hdcp_w->hdcp_content_type[connector->index] =
8494                                         new_con_state->hdcp_content_type;
8495                                 hdcp_w->content_protection[connector->index] =
8496                                         new_con_state->content_protection;
8497                         }
8498
8499                         if (new_crtc_state && new_crtc_state->mode_changed &&
8500                                 new_con_state->content_protection >= DRM_MODE_CONTENT_PROTECTION_DESIRED)
8501                                 enable_encryption = true;
8502
8503                         DRM_INFO("[HDCP_DM] hdcp_update_display enable_encryption = %x\n", enable_encryption);
8504
8505                         hdcp_update_display(
8506                                 adev->dm.hdcp_workqueue, aconnector->dc_link->link_index, aconnector,
8507                                 new_con_state->hdcp_content_type, enable_encryption);
8508                 }
8509         }
8510 #endif
8511
8512         /* Handle connector state changes */
8513         for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) {
8514                 struct dm_connector_state *dm_new_con_state = to_dm_connector_state(new_con_state);
8515                 struct dm_connector_state *dm_old_con_state = to_dm_connector_state(old_con_state);
8516                 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(dm_new_con_state->base.crtc);
8517                 struct dc_surface_update dummy_updates[MAX_SURFACES];
8518                 struct dc_stream_update stream_update;
8519                 struct dc_info_packet hdr_packet;
8520                 struct dc_stream_status *status = NULL;
8521                 bool abm_changed, hdr_changed, scaling_changed;
8522
8523                 memset(&dummy_updates, 0, sizeof(dummy_updates));
8524                 memset(&stream_update, 0, sizeof(stream_update));
8525
8526                 if (acrtc) {
8527                         new_crtc_state = drm_atomic_get_new_crtc_state(state, &acrtc->base);
8528                         old_crtc_state = drm_atomic_get_old_crtc_state(state, &acrtc->base);
8529                 }
8530
8531                 /* Skip any modesets/resets */
8532                 if (!acrtc || drm_atomic_crtc_needs_modeset(new_crtc_state))
8533                         continue;
8534
8535                 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
8536                 dm_old_crtc_state = to_dm_crtc_state(old_crtc_state);
8537
8538                 scaling_changed = is_scaling_state_different(dm_new_con_state,
8539                                                              dm_old_con_state);
8540
8541                 abm_changed = dm_new_crtc_state->abm_level !=
8542                               dm_old_crtc_state->abm_level;
8543
8544                 hdr_changed =
8545                         !drm_connector_atomic_hdr_metadata_equal(old_con_state, new_con_state);
8546
8547                 if (!scaling_changed && !abm_changed && !hdr_changed)
8548                         continue;
8549
8550                 stream_update.stream = dm_new_crtc_state->stream;
8551                 if (scaling_changed) {
8552                         update_stream_scaling_settings(&dm_new_con_state->base.crtc->mode,
8553                                         dm_new_con_state, dm_new_crtc_state->stream);
8554
8555                         stream_update.src = dm_new_crtc_state->stream->src;
8556                         stream_update.dst = dm_new_crtc_state->stream->dst;
8557                 }
8558
8559                 if (abm_changed) {
8560                         dm_new_crtc_state->stream->abm_level = dm_new_crtc_state->abm_level;
8561
8562                         stream_update.abm_level = &dm_new_crtc_state->abm_level;
8563                 }
8564
8565                 if (hdr_changed) {
8566                         fill_hdr_info_packet(new_con_state, &hdr_packet);
8567                         stream_update.hdr_static_metadata = &hdr_packet;
8568                 }
8569
8570                 status = dc_stream_get_status(dm_new_crtc_state->stream);
8571
8572                 if (WARN_ON(!status))
8573                         continue;
8574
8575                 WARN_ON(!status->plane_count);
8576
8577                 /*
8578                  * TODO: DC refuses to perform stream updates without a dc_surface_update.
8579                  * Here we create an empty update on each plane.
8580                  * To fix this, DC should permit updating only stream properties.
8581                  */
8582                 for (j = 0; j < status->plane_count; j++)
8583                         dummy_updates[j].surface = status->plane_states[0];
8584
8585
8586                 mutex_lock(&dm->dc_lock);
8587                 dc_commit_updates_for_stream(dm->dc,
8588                                                      dummy_updates,
8589                                                      status->plane_count,
8590                                                      dm_new_crtc_state->stream,
8591                                                      &stream_update,
8592                                                      dc_state);
8593                 mutex_unlock(&dm->dc_lock);
8594         }
8595
8596         /**
8597          * Enable interrupts for CRTCs that are newly enabled or went through
8598          * a modeset. It was intentionally deferred until after the front end
8599          * state was modified to wait until the OTG was on and so the IRQ
8600          * handlers didn't access stale or invalid state.
8601          */
8602         for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
8603                 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
8604 #ifdef CONFIG_DEBUG_FS
8605                 enum amdgpu_dm_pipe_crc_source cur_crc_src;
8606 #endif
8607                 /* Count number of newly disabled CRTCs for dropping PM refs later. */
8608                 if (old_crtc_state->active && !new_crtc_state->active)
8609                         crtc_disable_count++;
8610
8611                 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
8612                 dm_old_crtc_state = to_dm_crtc_state(old_crtc_state);
8613
8614                 /* For freesync config update on crtc state and params for irq */
8615                 update_stream_irq_parameters(dm, dm_new_crtc_state);
8616
8617 #ifdef CONFIG_DEBUG_FS
8618                 spin_lock_irqsave(&adev_to_drm(adev)->event_lock, flags);
8619                 cur_crc_src = acrtc->dm_irq_params.crc_src;
8620                 spin_unlock_irqrestore(&adev_to_drm(adev)->event_lock, flags);
8621 #endif
8622
8623                 if (new_crtc_state->active &&
8624                     (!old_crtc_state->active ||
8625                      drm_atomic_crtc_needs_modeset(new_crtc_state))) {
8626                         dc_stream_retain(dm_new_crtc_state->stream);
8627                         acrtc->dm_irq_params.stream = dm_new_crtc_state->stream;
8628                         manage_dm_interrupts(adev, acrtc, true);
8629                 }
8630                 /* Handle vrr on->off / off->on transitions */
8631                 amdgpu_dm_handle_vrr_transition(dm_old_crtc_state, dm_new_crtc_state);
8632
8633 #ifdef CONFIG_DEBUG_FS
8634                 if (new_crtc_state->active &&
8635                     (!old_crtc_state->active ||
8636                      drm_atomic_crtc_needs_modeset(new_crtc_state))) {
8637                         /**
8638                          * Frontend may have changed so reapply the CRC capture
8639                          * settings for the stream.
8640                          */
8641                         if (amdgpu_dm_is_valid_crc_source(cur_crc_src)) {
8642 #if defined(CONFIG_DRM_AMD_SECURE_DISPLAY)
8643                                 if (amdgpu_dm_crc_window_is_activated(crtc)) {
8644                                         spin_lock_irqsave(&adev_to_drm(adev)->event_lock, flags);
8645                                         acrtc->dm_irq_params.window_param.update_win = true;
8646
8647                                         /**
8648                                          * It takes 2 frames for HW to stably generate CRC when
8649                                          * resuming from suspend, so we set skip_frame_cnt 2.
8650                                          */
8651                                         acrtc->dm_irq_params.window_param.skip_frame_cnt = 2;
8652                                         spin_unlock_irqrestore(&adev_to_drm(adev)->event_lock, flags);
8653                                 }
8654 #endif
8655                                 if (amdgpu_dm_crtc_configure_crc_source(
8656                                         crtc, dm_new_crtc_state, cur_crc_src))
8657                                         DRM_DEBUG_DRIVER("Failed to configure crc source");
8658                         }
8659                 }
8660 #endif
8661         }
8662
8663         for_each_new_crtc_in_state(state, crtc, new_crtc_state, j)
8664                 if (new_crtc_state->async_flip)
8665                         wait_for_vblank = false;
8666
8667         /* update planes when needed per crtc*/
8668         for_each_new_crtc_in_state(state, crtc, new_crtc_state, j) {
8669                 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
8670
8671                 if (dm_new_crtc_state->stream)
8672                         amdgpu_dm_commit_planes(state, dc_state, dev,
8673                                                 dm, crtc, wait_for_vblank);
8674         }
8675
8676         /* Update audio instances for each connector. */
8677         amdgpu_dm_commit_audio(dev, state);
8678
8679         /* restore the backlight level */
8680         for (i = 0; i < dm->num_of_edps; i++) {
8681                 if (dm->backlight_dev[i] &&
8682                     (dm->actual_brightness[i] != dm->brightness[i]))
8683                         amdgpu_dm_backlight_set_level(dm, i, dm->brightness[i]);
8684         }
8685
8686         /*
8687          * send vblank event on all events not handled in flip and
8688          * mark consumed event for drm_atomic_helper_commit_hw_done
8689          */
8690         spin_lock_irqsave(&adev_to_drm(adev)->event_lock, flags);
8691         for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
8692
8693                 if (new_crtc_state->event)
8694                         drm_send_event_locked(dev, &new_crtc_state->event->base);
8695
8696                 new_crtc_state->event = NULL;
8697         }
8698         spin_unlock_irqrestore(&adev_to_drm(adev)->event_lock, flags);
8699
8700         /* Signal HW programming completion */
8701         drm_atomic_helper_commit_hw_done(state);
8702
8703         if (wait_for_vblank)
8704                 drm_atomic_helper_wait_for_flip_done(dev, state);
8705
8706         drm_atomic_helper_cleanup_planes(dev, state);
8707
8708         /* return the stolen vga memory back to VRAM */
8709         if (!adev->mman.keep_stolen_vga_memory)
8710                 amdgpu_bo_free_kernel(&adev->mman.stolen_vga_memory, NULL, NULL);
8711         amdgpu_bo_free_kernel(&adev->mman.stolen_extended_memory, NULL, NULL);
8712
8713         /*
8714          * Finally, drop a runtime PM reference for each newly disabled CRTC,
8715          * so we can put the GPU into runtime suspend if we're not driving any
8716          * displays anymore
8717          */
8718         for (i = 0; i < crtc_disable_count; i++)
8719                 pm_runtime_put_autosuspend(dev->dev);
8720         pm_runtime_mark_last_busy(dev->dev);
8721
8722         if (dc_state_temp)
8723                 dc_release_state(dc_state_temp);
8724 }
8725
8726 static int dm_force_atomic_commit(struct drm_connector *connector)
8727 {
8728         int ret = 0;
8729         struct drm_device *ddev = connector->dev;
8730         struct drm_atomic_state *state = drm_atomic_state_alloc(ddev);
8731         struct amdgpu_crtc *disconnected_acrtc = to_amdgpu_crtc(connector->encoder->crtc);
8732         struct drm_plane *plane = disconnected_acrtc->base.primary;
8733         struct drm_connector_state *conn_state;
8734         struct drm_crtc_state *crtc_state;
8735         struct drm_plane_state *plane_state;
8736
8737         if (!state)
8738                 return -ENOMEM;
8739
8740         state->acquire_ctx = ddev->mode_config.acquire_ctx;
8741
8742         /* Construct an atomic state to restore previous display setting */
8743
8744         /*
8745          * Attach connectors to drm_atomic_state
8746          */
8747         conn_state = drm_atomic_get_connector_state(state, connector);
8748
8749         ret = PTR_ERR_OR_ZERO(conn_state);
8750         if (ret)
8751                 goto out;
8752
8753         /* Attach crtc to drm_atomic_state*/
8754         crtc_state = drm_atomic_get_crtc_state(state, &disconnected_acrtc->base);
8755
8756         ret = PTR_ERR_OR_ZERO(crtc_state);
8757         if (ret)
8758                 goto out;
8759
8760         /* force a restore */
8761         crtc_state->mode_changed = true;
8762
8763         /* Attach plane to drm_atomic_state */
8764         plane_state = drm_atomic_get_plane_state(state, plane);
8765
8766         ret = PTR_ERR_OR_ZERO(plane_state);
8767         if (ret)
8768                 goto out;
8769
8770         /* Call commit internally with the state we just constructed */
8771         ret = drm_atomic_commit(state);
8772
8773 out:
8774         drm_atomic_state_put(state);
8775         if (ret)
8776                 DRM_ERROR("Restoring old state failed with %i\n", ret);
8777
8778         return ret;
8779 }
8780
8781 /*
8782  * This function handles all cases when set mode does not come upon hotplug.
8783  * This includes when a display is unplugged then plugged back into the
8784  * same port and when running without usermode desktop manager supprot
8785  */
8786 void dm_restore_drm_connector_state(struct drm_device *dev,
8787                                     struct drm_connector *connector)
8788 {
8789         struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
8790         struct amdgpu_crtc *disconnected_acrtc;
8791         struct dm_crtc_state *acrtc_state;
8792
8793         if (!aconnector->dc_sink || !connector->state || !connector->encoder)
8794                 return;
8795
8796         disconnected_acrtc = to_amdgpu_crtc(connector->encoder->crtc);
8797         if (!disconnected_acrtc)
8798                 return;
8799
8800         acrtc_state = to_dm_crtc_state(disconnected_acrtc->base.state);
8801         if (!acrtc_state->stream)
8802                 return;
8803
8804         /*
8805          * If the previous sink is not released and different from the current,
8806          * we deduce we are in a state where we can not rely on usermode call
8807          * to turn on the display, so we do it here
8808          */
8809         if (acrtc_state->stream->sink != aconnector->dc_sink)
8810                 dm_force_atomic_commit(&aconnector->base);
8811 }
8812
8813 /*
8814  * Grabs all modesetting locks to serialize against any blocking commits,
8815  * Waits for completion of all non blocking commits.
8816  */
8817 static int do_aquire_global_lock(struct drm_device *dev,
8818                                  struct drm_atomic_state *state)
8819 {
8820         struct drm_crtc *crtc;
8821         struct drm_crtc_commit *commit;
8822         long ret;
8823
8824         /*
8825          * Adding all modeset locks to aquire_ctx will
8826          * ensure that when the framework release it the
8827          * extra locks we are locking here will get released to
8828          */
8829         ret = drm_modeset_lock_all_ctx(dev, state->acquire_ctx);
8830         if (ret)
8831                 return ret;
8832
8833         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
8834                 spin_lock(&crtc->commit_lock);
8835                 commit = list_first_entry_or_null(&crtc->commit_list,
8836                                 struct drm_crtc_commit, commit_entry);
8837                 if (commit)
8838                         drm_crtc_commit_get(commit);
8839                 spin_unlock(&crtc->commit_lock);
8840
8841                 if (!commit)
8842                         continue;
8843
8844                 /*
8845                  * Make sure all pending HW programming completed and
8846                  * page flips done
8847                  */
8848                 ret = wait_for_completion_interruptible_timeout(&commit->hw_done, 10*HZ);
8849
8850                 if (ret > 0)
8851                         ret = wait_for_completion_interruptible_timeout(
8852                                         &commit->flip_done, 10*HZ);
8853
8854                 if (ret == 0)
8855                         DRM_ERROR("[CRTC:%d:%s] hw_done or flip_done "
8856                                   "timed out\n", crtc->base.id, crtc->name);
8857
8858                 drm_crtc_commit_put(commit);
8859         }
8860
8861         return ret < 0 ? ret : 0;
8862 }
8863
8864 static void get_freesync_config_for_crtc(
8865         struct dm_crtc_state *new_crtc_state,
8866         struct dm_connector_state *new_con_state)
8867 {
8868         struct mod_freesync_config config = {0};
8869         struct amdgpu_dm_connector *aconnector =
8870                         to_amdgpu_dm_connector(new_con_state->base.connector);
8871         struct drm_display_mode *mode = &new_crtc_state->base.mode;
8872         int vrefresh = drm_mode_vrefresh(mode);
8873         bool fs_vid_mode = false;
8874
8875         new_crtc_state->vrr_supported = new_con_state->freesync_capable &&
8876                                         vrefresh >= aconnector->min_vfreq &&
8877                                         vrefresh <= aconnector->max_vfreq;
8878
8879         if (new_crtc_state->vrr_supported) {
8880                 new_crtc_state->stream->ignore_msa_timing_param = true;
8881                 fs_vid_mode = new_crtc_state->freesync_config.state == VRR_STATE_ACTIVE_FIXED;
8882
8883                 config.min_refresh_in_uhz = aconnector->min_vfreq * 1000000;
8884                 config.max_refresh_in_uhz = aconnector->max_vfreq * 1000000;
8885                 config.vsif_supported = true;
8886                 config.btr = true;
8887
8888                 if (fs_vid_mode) {
8889                         config.state = VRR_STATE_ACTIVE_FIXED;
8890                         config.fixed_refresh_in_uhz = new_crtc_state->freesync_config.fixed_refresh_in_uhz;
8891                         goto out;
8892                 } else if (new_crtc_state->base.vrr_enabled) {
8893                         config.state = VRR_STATE_ACTIVE_VARIABLE;
8894                 } else {
8895                         config.state = VRR_STATE_INACTIVE;
8896                 }
8897         }
8898 out:
8899         new_crtc_state->freesync_config = config;
8900 }
8901
8902 static void reset_freesync_config_for_crtc(
8903         struct dm_crtc_state *new_crtc_state)
8904 {
8905         new_crtc_state->vrr_supported = false;
8906
8907         memset(&new_crtc_state->vrr_infopacket, 0,
8908                sizeof(new_crtc_state->vrr_infopacket));
8909 }
8910
8911 static bool
8912 is_timing_unchanged_for_freesync(struct drm_crtc_state *old_crtc_state,
8913                                  struct drm_crtc_state *new_crtc_state)
8914 {
8915         const struct drm_display_mode *old_mode, *new_mode;
8916
8917         if (!old_crtc_state || !new_crtc_state)
8918                 return false;
8919
8920         old_mode = &old_crtc_state->mode;
8921         new_mode = &new_crtc_state->mode;
8922
8923         if (old_mode->clock       == new_mode->clock &&
8924             old_mode->hdisplay    == new_mode->hdisplay &&
8925             old_mode->vdisplay    == new_mode->vdisplay &&
8926             old_mode->htotal      == new_mode->htotal &&
8927             old_mode->vtotal      != new_mode->vtotal &&
8928             old_mode->hsync_start == new_mode->hsync_start &&
8929             old_mode->vsync_start != new_mode->vsync_start &&
8930             old_mode->hsync_end   == new_mode->hsync_end &&
8931             old_mode->vsync_end   != new_mode->vsync_end &&
8932             old_mode->hskew       == new_mode->hskew &&
8933             old_mode->vscan       == new_mode->vscan &&
8934             (old_mode->vsync_end - old_mode->vsync_start) ==
8935             (new_mode->vsync_end - new_mode->vsync_start))
8936                 return true;
8937
8938         return false;
8939 }
8940
8941 static void set_freesync_fixed_config(struct dm_crtc_state *dm_new_crtc_state) {
8942         u64 num, den, res;
8943         struct drm_crtc_state *new_crtc_state = &dm_new_crtc_state->base;
8944
8945         dm_new_crtc_state->freesync_config.state = VRR_STATE_ACTIVE_FIXED;
8946
8947         num = (unsigned long long)new_crtc_state->mode.clock * 1000 * 1000000;
8948         den = (unsigned long long)new_crtc_state->mode.htotal *
8949               (unsigned long long)new_crtc_state->mode.vtotal;
8950
8951         res = div_u64(num, den);
8952         dm_new_crtc_state->freesync_config.fixed_refresh_in_uhz = res;
8953 }
8954
8955 static int dm_update_crtc_state(struct amdgpu_display_manager *dm,
8956                          struct drm_atomic_state *state,
8957                          struct drm_crtc *crtc,
8958                          struct drm_crtc_state *old_crtc_state,
8959                          struct drm_crtc_state *new_crtc_state,
8960                          bool enable,
8961                          bool *lock_and_validation_needed)
8962 {
8963         struct dm_atomic_state *dm_state = NULL;
8964         struct dm_crtc_state *dm_old_crtc_state, *dm_new_crtc_state;
8965         struct dc_stream_state *new_stream;
8966         int ret = 0;
8967
8968         /*
8969          * TODO Move this code into dm_crtc_atomic_check once we get rid of dc_validation_set
8970          * update changed items
8971          */
8972         struct amdgpu_crtc *acrtc = NULL;
8973         struct amdgpu_dm_connector *aconnector = NULL;
8974         struct drm_connector_state *drm_new_conn_state = NULL, *drm_old_conn_state = NULL;
8975         struct dm_connector_state *dm_new_conn_state = NULL, *dm_old_conn_state = NULL;
8976
8977         new_stream = NULL;
8978
8979         dm_old_crtc_state = to_dm_crtc_state(old_crtc_state);
8980         dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
8981         acrtc = to_amdgpu_crtc(crtc);
8982         aconnector = amdgpu_dm_find_first_crtc_matching_connector(state, crtc);
8983
8984         /* TODO This hack should go away */
8985         if (aconnector && enable) {
8986                 /* Make sure fake sink is created in plug-in scenario */
8987                 drm_new_conn_state = drm_atomic_get_new_connector_state(state,
8988                                                             &aconnector->base);
8989                 drm_old_conn_state = drm_atomic_get_old_connector_state(state,
8990                                                             &aconnector->base);
8991
8992                 if (IS_ERR(drm_new_conn_state)) {
8993                         ret = PTR_ERR_OR_ZERO(drm_new_conn_state);
8994                         goto fail;
8995                 }
8996
8997                 dm_new_conn_state = to_dm_connector_state(drm_new_conn_state);
8998                 dm_old_conn_state = to_dm_connector_state(drm_old_conn_state);
8999
9000                 if (!drm_atomic_crtc_needs_modeset(new_crtc_state))
9001                         goto skip_modeset;
9002
9003                 new_stream = create_validate_stream_for_sink(aconnector,
9004                                                              &new_crtc_state->mode,
9005                                                              dm_new_conn_state,
9006                                                              dm_old_crtc_state->stream);
9007
9008                 /*
9009                  * we can have no stream on ACTION_SET if a display
9010                  * was disconnected during S3, in this case it is not an
9011                  * error, the OS will be updated after detection, and
9012                  * will do the right thing on next atomic commit
9013                  */
9014
9015                 if (!new_stream) {
9016                         DRM_DEBUG_DRIVER("%s: Failed to create new stream for crtc %d\n",
9017                                         __func__, acrtc->base.base.id);
9018                         ret = -ENOMEM;
9019                         goto fail;
9020                 }
9021
9022                 /*
9023                  * TODO: Check VSDB bits to decide whether this should
9024                  * be enabled or not.
9025                  */
9026                 new_stream->triggered_crtc_reset.enabled =
9027                         dm->force_timing_sync;
9028
9029                 dm_new_crtc_state->abm_level = dm_new_conn_state->abm_level;
9030
9031                 ret = fill_hdr_info_packet(drm_new_conn_state,
9032                                            &new_stream->hdr_static_metadata);
9033                 if (ret)
9034                         goto fail;
9035
9036                 /*
9037                  * If we already removed the old stream from the context
9038                  * (and set the new stream to NULL) then we can't reuse
9039                  * the old stream even if the stream and scaling are unchanged.
9040                  * We'll hit the BUG_ON and black screen.
9041                  *
9042                  * TODO: Refactor this function to allow this check to work
9043                  * in all conditions.
9044                  */
9045                 if (amdgpu_freesync_vid_mode &&
9046                     dm_new_crtc_state->stream &&
9047                     is_timing_unchanged_for_freesync(new_crtc_state, old_crtc_state))
9048                         goto skip_modeset;
9049
9050                 if (dm_new_crtc_state->stream &&
9051                     dc_is_stream_unchanged(new_stream, dm_old_crtc_state->stream) &&
9052                     dc_is_stream_scaling_unchanged(new_stream, dm_old_crtc_state->stream)) {
9053                         new_crtc_state->mode_changed = false;
9054                         DRM_DEBUG_DRIVER("Mode change not required, setting mode_changed to %d",
9055                                          new_crtc_state->mode_changed);
9056                 }
9057         }
9058
9059         /* mode_changed flag may get updated above, need to check again */
9060         if (!drm_atomic_crtc_needs_modeset(new_crtc_state))
9061                 goto skip_modeset;
9062
9063         drm_dbg_state(state->dev,
9064                 "amdgpu_crtc id:%d crtc_state_flags: enable:%d, active:%d, "
9065                 "planes_changed:%d, mode_changed:%d,active_changed:%d,"
9066                 "connectors_changed:%d\n",
9067                 acrtc->crtc_id,
9068                 new_crtc_state->enable,
9069                 new_crtc_state->active,
9070                 new_crtc_state->planes_changed,
9071                 new_crtc_state->mode_changed,
9072                 new_crtc_state->active_changed,
9073                 new_crtc_state->connectors_changed);
9074
9075         /* Remove stream for any changed/disabled CRTC */
9076         if (!enable) {
9077
9078                 if (!dm_old_crtc_state->stream)
9079                         goto skip_modeset;
9080
9081                 /* Unset freesync video if it was active before */
9082                 if (dm_old_crtc_state->freesync_config.state == VRR_STATE_ACTIVE_FIXED) {
9083                         dm_new_crtc_state->freesync_config.state = VRR_STATE_INACTIVE;
9084                         dm_new_crtc_state->freesync_config.fixed_refresh_in_uhz = 0;
9085                 }
9086
9087                 /* Now check if we should set freesync video mode */
9088                 if (amdgpu_freesync_vid_mode && dm_new_crtc_state->stream &&
9089                     is_timing_unchanged_for_freesync(new_crtc_state,
9090                                                      old_crtc_state)) {
9091                         new_crtc_state->mode_changed = false;
9092                         DRM_DEBUG_DRIVER(
9093                                 "Mode change not required for front porch change, "
9094                                 "setting mode_changed to %d",
9095                                 new_crtc_state->mode_changed);
9096
9097                         set_freesync_fixed_config(dm_new_crtc_state);
9098
9099                         goto skip_modeset;
9100                 } else if (amdgpu_freesync_vid_mode && aconnector &&
9101                            is_freesync_video_mode(&new_crtc_state->mode,
9102                                                   aconnector)) {
9103                         struct drm_display_mode *high_mode;
9104
9105                         high_mode = get_highest_refresh_rate_mode(aconnector, false);
9106                         if (!drm_mode_equal(&new_crtc_state->mode, high_mode)) {
9107                                 set_freesync_fixed_config(dm_new_crtc_state);
9108                         }
9109                 }
9110
9111                 ret = dm_atomic_get_state(state, &dm_state);
9112                 if (ret)
9113                         goto fail;
9114
9115                 DRM_DEBUG_DRIVER("Disabling DRM crtc: %d\n",
9116                                 crtc->base.id);
9117
9118                 /* i.e. reset mode */
9119                 if (dc_remove_stream_from_ctx(
9120                                 dm->dc,
9121                                 dm_state->context,
9122                                 dm_old_crtc_state->stream) != DC_OK) {
9123                         ret = -EINVAL;
9124                         goto fail;
9125                 }
9126
9127                 dc_stream_release(dm_old_crtc_state->stream);
9128                 dm_new_crtc_state->stream = NULL;
9129
9130                 reset_freesync_config_for_crtc(dm_new_crtc_state);
9131
9132                 *lock_and_validation_needed = true;
9133
9134         } else {/* Add stream for any updated/enabled CRTC */
9135                 /*
9136                  * Quick fix to prevent NULL pointer on new_stream when
9137                  * added MST connectors not found in existing crtc_state in the chained mode
9138                  * TODO: need to dig out the root cause of that
9139                  */
9140                 if (!aconnector)
9141                         goto skip_modeset;
9142
9143                 if (modereset_required(new_crtc_state))
9144                         goto skip_modeset;
9145
9146                 if (modeset_required(new_crtc_state, new_stream,
9147                                      dm_old_crtc_state->stream)) {
9148
9149                         WARN_ON(dm_new_crtc_state->stream);
9150
9151                         ret = dm_atomic_get_state(state, &dm_state);
9152                         if (ret)
9153                                 goto fail;
9154
9155                         dm_new_crtc_state->stream = new_stream;
9156
9157                         dc_stream_retain(new_stream);
9158
9159                         DRM_DEBUG_ATOMIC("Enabling DRM crtc: %d\n",
9160                                          crtc->base.id);
9161
9162                         if (dc_add_stream_to_ctx(
9163                                         dm->dc,
9164                                         dm_state->context,
9165                                         dm_new_crtc_state->stream) != DC_OK) {
9166                                 ret = -EINVAL;
9167                                 goto fail;
9168                         }
9169
9170                         *lock_and_validation_needed = true;
9171                 }
9172         }
9173
9174 skip_modeset:
9175         /* Release extra reference */
9176         if (new_stream)
9177                  dc_stream_release(new_stream);
9178
9179         /*
9180          * We want to do dc stream updates that do not require a
9181          * full modeset below.
9182          */
9183         if (!(enable && aconnector && new_crtc_state->active))
9184                 return 0;
9185         /*
9186          * Given above conditions, the dc state cannot be NULL because:
9187          * 1. We're in the process of enabling CRTCs (just been added
9188          *    to the dc context, or already is on the context)
9189          * 2. Has a valid connector attached, and
9190          * 3. Is currently active and enabled.
9191          * => The dc stream state currently exists.
9192          */
9193         BUG_ON(dm_new_crtc_state->stream == NULL);
9194
9195         /* Scaling or underscan settings */
9196         if (is_scaling_state_different(dm_old_conn_state, dm_new_conn_state) ||
9197                                 drm_atomic_crtc_needs_modeset(new_crtc_state))
9198                 update_stream_scaling_settings(
9199                         &new_crtc_state->mode, dm_new_conn_state, dm_new_crtc_state->stream);
9200
9201         /* ABM settings */
9202         dm_new_crtc_state->abm_level = dm_new_conn_state->abm_level;
9203
9204         /*
9205          * Color management settings. We also update color properties
9206          * when a modeset is needed, to ensure it gets reprogrammed.
9207          */
9208         if (dm_new_crtc_state->base.color_mgmt_changed ||
9209             drm_atomic_crtc_needs_modeset(new_crtc_state)) {
9210                 ret = amdgpu_dm_update_crtc_color_mgmt(dm_new_crtc_state);
9211                 if (ret)
9212                         goto fail;
9213         }
9214
9215         /* Update Freesync settings. */
9216         get_freesync_config_for_crtc(dm_new_crtc_state,
9217                                      dm_new_conn_state);
9218
9219         return ret;
9220
9221 fail:
9222         if (new_stream)
9223                 dc_stream_release(new_stream);
9224         return ret;
9225 }
9226
9227 static bool should_reset_plane(struct drm_atomic_state *state,
9228                                struct drm_plane *plane,
9229                                struct drm_plane_state *old_plane_state,
9230                                struct drm_plane_state *new_plane_state)
9231 {
9232         struct drm_plane *other;
9233         struct drm_plane_state *old_other_state, *new_other_state;
9234         struct drm_crtc_state *new_crtc_state;
9235         int i;
9236
9237         /*
9238          * TODO: Remove this hack once the checks below are sufficient
9239          * enough to determine when we need to reset all the planes on
9240          * the stream.
9241          */
9242         if (state->allow_modeset)
9243                 return true;
9244
9245         /* Exit early if we know that we're adding or removing the plane. */
9246         if (old_plane_state->crtc != new_plane_state->crtc)
9247                 return true;
9248
9249         /* old crtc == new_crtc == NULL, plane not in context. */
9250         if (!new_plane_state->crtc)
9251                 return false;
9252
9253         new_crtc_state =
9254                 drm_atomic_get_new_crtc_state(state, new_plane_state->crtc);
9255
9256         if (!new_crtc_state)
9257                 return true;
9258
9259         /* CRTC Degamma changes currently require us to recreate planes. */
9260         if (new_crtc_state->color_mgmt_changed)
9261                 return true;
9262
9263         if (drm_atomic_crtc_needs_modeset(new_crtc_state))
9264                 return true;
9265
9266         /*
9267          * If there are any new primary or overlay planes being added or
9268          * removed then the z-order can potentially change. To ensure
9269          * correct z-order and pipe acquisition the current DC architecture
9270          * requires us to remove and recreate all existing planes.
9271          *
9272          * TODO: Come up with a more elegant solution for this.
9273          */
9274         for_each_oldnew_plane_in_state(state, other, old_other_state, new_other_state, i) {
9275                 struct amdgpu_framebuffer *old_afb, *new_afb;
9276                 if (other->type == DRM_PLANE_TYPE_CURSOR)
9277                         continue;
9278
9279                 if (old_other_state->crtc != new_plane_state->crtc &&
9280                     new_other_state->crtc != new_plane_state->crtc)
9281                         continue;
9282
9283                 if (old_other_state->crtc != new_other_state->crtc)
9284                         return true;
9285
9286                 /* Src/dst size and scaling updates. */
9287                 if (old_other_state->src_w != new_other_state->src_w ||
9288                     old_other_state->src_h != new_other_state->src_h ||
9289                     old_other_state->crtc_w != new_other_state->crtc_w ||
9290                     old_other_state->crtc_h != new_other_state->crtc_h)
9291                         return true;
9292
9293                 /* Rotation / mirroring updates. */
9294                 if (old_other_state->rotation != new_other_state->rotation)
9295                         return true;
9296
9297                 /* Blending updates. */
9298                 if (old_other_state->pixel_blend_mode !=
9299                     new_other_state->pixel_blend_mode)
9300                         return true;
9301
9302                 /* Alpha updates. */
9303                 if (old_other_state->alpha != new_other_state->alpha)
9304                         return true;
9305
9306                 /* Colorspace changes. */
9307                 if (old_other_state->color_range != new_other_state->color_range ||
9308                     old_other_state->color_encoding != new_other_state->color_encoding)
9309                         return true;
9310
9311                 /* Framebuffer checks fall at the end. */
9312                 if (!old_other_state->fb || !new_other_state->fb)
9313                         continue;
9314
9315                 /* Pixel format changes can require bandwidth updates. */
9316                 if (old_other_state->fb->format != new_other_state->fb->format)
9317                         return true;
9318
9319                 old_afb = (struct amdgpu_framebuffer *)old_other_state->fb;
9320                 new_afb = (struct amdgpu_framebuffer *)new_other_state->fb;
9321
9322                 /* Tiling and DCC changes also require bandwidth updates. */
9323                 if (old_afb->tiling_flags != new_afb->tiling_flags ||
9324                     old_afb->base.modifier != new_afb->base.modifier)
9325                         return true;
9326         }
9327
9328         return false;
9329 }
9330
9331 static int dm_check_cursor_fb(struct amdgpu_crtc *new_acrtc,
9332                               struct drm_plane_state *new_plane_state,
9333                               struct drm_framebuffer *fb)
9334 {
9335         struct amdgpu_device *adev = drm_to_adev(new_acrtc->base.dev);
9336         struct amdgpu_framebuffer *afb = to_amdgpu_framebuffer(fb);
9337         unsigned int pitch;
9338         bool linear;
9339
9340         if (fb->width > new_acrtc->max_cursor_width ||
9341             fb->height > new_acrtc->max_cursor_height) {
9342                 DRM_DEBUG_ATOMIC("Bad cursor FB size %dx%d\n",
9343                                  new_plane_state->fb->width,
9344                                  new_plane_state->fb->height);
9345                 return -EINVAL;
9346         }
9347         if (new_plane_state->src_w != fb->width << 16 ||
9348             new_plane_state->src_h != fb->height << 16) {
9349                 DRM_DEBUG_ATOMIC("Cropping not supported for cursor plane\n");
9350                 return -EINVAL;
9351         }
9352
9353         /* Pitch in pixels */
9354         pitch = fb->pitches[0] / fb->format->cpp[0];
9355
9356         if (fb->width != pitch) {
9357                 DRM_DEBUG_ATOMIC("Cursor FB width %d doesn't match pitch %d",
9358                                  fb->width, pitch);
9359                 return -EINVAL;
9360         }
9361
9362         switch (pitch) {
9363         case 64:
9364         case 128:
9365         case 256:
9366                 /* FB pitch is supported by cursor plane */
9367                 break;
9368         default:
9369                 DRM_DEBUG_ATOMIC("Bad cursor FB pitch %d px\n", pitch);
9370                 return -EINVAL;
9371         }
9372
9373         /* Core DRM takes care of checking FB modifiers, so we only need to
9374          * check tiling flags when the FB doesn't have a modifier. */
9375         if (!(fb->flags & DRM_MODE_FB_MODIFIERS)) {
9376                 if (adev->family < AMDGPU_FAMILY_AI) {
9377                         linear = AMDGPU_TILING_GET(afb->tiling_flags, ARRAY_MODE) != DC_ARRAY_2D_TILED_THIN1 &&
9378                                  AMDGPU_TILING_GET(afb->tiling_flags, ARRAY_MODE) != DC_ARRAY_1D_TILED_THIN1 &&
9379                                  AMDGPU_TILING_GET(afb->tiling_flags, MICRO_TILE_MODE) == 0;
9380                 } else {
9381                         linear = AMDGPU_TILING_GET(afb->tiling_flags, SWIZZLE_MODE) == 0;
9382                 }
9383                 if (!linear) {
9384                         DRM_DEBUG_ATOMIC("Cursor FB not linear");
9385                         return -EINVAL;
9386                 }
9387         }
9388
9389         return 0;
9390 }
9391
9392 static int dm_update_plane_state(struct dc *dc,
9393                                  struct drm_atomic_state *state,
9394                                  struct drm_plane *plane,
9395                                  struct drm_plane_state *old_plane_state,
9396                                  struct drm_plane_state *new_plane_state,
9397                                  bool enable,
9398                                  bool *lock_and_validation_needed)
9399 {
9400
9401         struct dm_atomic_state *dm_state = NULL;
9402         struct drm_crtc *new_plane_crtc, *old_plane_crtc;
9403         struct drm_crtc_state *old_crtc_state, *new_crtc_state;
9404         struct dm_crtc_state *dm_new_crtc_state, *dm_old_crtc_state;
9405         struct dm_plane_state *dm_new_plane_state, *dm_old_plane_state;
9406         struct amdgpu_crtc *new_acrtc;
9407         bool needs_reset;
9408         int ret = 0;
9409
9410
9411         new_plane_crtc = new_plane_state->crtc;
9412         old_plane_crtc = old_plane_state->crtc;
9413         dm_new_plane_state = to_dm_plane_state(new_plane_state);
9414         dm_old_plane_state = to_dm_plane_state(old_plane_state);
9415
9416         if (plane->type == DRM_PLANE_TYPE_CURSOR) {
9417                 if (!enable || !new_plane_crtc ||
9418                         drm_atomic_plane_disabling(plane->state, new_plane_state))
9419                         return 0;
9420
9421                 new_acrtc = to_amdgpu_crtc(new_plane_crtc);
9422
9423                 if (new_plane_state->src_x != 0 || new_plane_state->src_y != 0) {
9424                         DRM_DEBUG_ATOMIC("Cropping not supported for cursor plane\n");
9425                         return -EINVAL;
9426                 }
9427
9428                 if (new_plane_state->fb) {
9429                         ret = dm_check_cursor_fb(new_acrtc, new_plane_state,
9430                                                  new_plane_state->fb);
9431                         if (ret)
9432                                 return ret;
9433                 }
9434
9435                 return 0;
9436         }
9437
9438         needs_reset = should_reset_plane(state, plane, old_plane_state,
9439                                          new_plane_state);
9440
9441         /* Remove any changed/removed planes */
9442         if (!enable) {
9443                 if (!needs_reset)
9444                         return 0;
9445
9446                 if (!old_plane_crtc)
9447                         return 0;
9448
9449                 old_crtc_state = drm_atomic_get_old_crtc_state(
9450                                 state, old_plane_crtc);
9451                 dm_old_crtc_state = to_dm_crtc_state(old_crtc_state);
9452
9453                 if (!dm_old_crtc_state->stream)
9454                         return 0;
9455
9456                 DRM_DEBUG_ATOMIC("Disabling DRM plane: %d on DRM crtc %d\n",
9457                                 plane->base.id, old_plane_crtc->base.id);
9458
9459                 ret = dm_atomic_get_state(state, &dm_state);
9460                 if (ret)
9461                         return ret;
9462
9463                 if (!dc_remove_plane_from_context(
9464                                 dc,
9465                                 dm_old_crtc_state->stream,
9466                                 dm_old_plane_state->dc_state,
9467                                 dm_state->context)) {
9468
9469                         return -EINVAL;
9470                 }
9471
9472
9473                 dc_plane_state_release(dm_old_plane_state->dc_state);
9474                 dm_new_plane_state->dc_state = NULL;
9475
9476                 *lock_and_validation_needed = true;
9477
9478         } else { /* Add new planes */
9479                 struct dc_plane_state *dc_new_plane_state;
9480
9481                 if (drm_atomic_plane_disabling(plane->state, new_plane_state))
9482                         return 0;
9483
9484                 if (!new_plane_crtc)
9485                         return 0;
9486
9487                 new_crtc_state = drm_atomic_get_new_crtc_state(state, new_plane_crtc);
9488                 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
9489
9490                 if (!dm_new_crtc_state->stream)
9491                         return 0;
9492
9493                 if (!needs_reset)
9494                         return 0;
9495
9496                 ret = dm_plane_helper_check_state(new_plane_state, new_crtc_state);
9497                 if (ret)
9498                         return ret;
9499
9500                 WARN_ON(dm_new_plane_state->dc_state);
9501
9502                 dc_new_plane_state = dc_create_plane_state(dc);
9503                 if (!dc_new_plane_state)
9504                         return -ENOMEM;
9505
9506                 DRM_DEBUG_ATOMIC("Enabling DRM plane: %d on DRM crtc %d\n",
9507                                  plane->base.id, new_plane_crtc->base.id);
9508
9509                 ret = fill_dc_plane_attributes(
9510                         drm_to_adev(new_plane_crtc->dev),
9511                         dc_new_plane_state,
9512                         new_plane_state,
9513                         new_crtc_state);
9514                 if (ret) {
9515                         dc_plane_state_release(dc_new_plane_state);
9516                         return ret;
9517                 }
9518
9519                 ret = dm_atomic_get_state(state, &dm_state);
9520                 if (ret) {
9521                         dc_plane_state_release(dc_new_plane_state);
9522                         return ret;
9523                 }
9524
9525                 /*
9526                  * Any atomic check errors that occur after this will
9527                  * not need a release. The plane state will be attached
9528                  * to the stream, and therefore part of the atomic
9529                  * state. It'll be released when the atomic state is
9530                  * cleaned.
9531                  */
9532                 if (!dc_add_plane_to_context(
9533                                 dc,
9534                                 dm_new_crtc_state->stream,
9535                                 dc_new_plane_state,
9536                                 dm_state->context)) {
9537
9538                         dc_plane_state_release(dc_new_plane_state);
9539                         return -EINVAL;
9540                 }
9541
9542                 dm_new_plane_state->dc_state = dc_new_plane_state;
9543
9544                 dm_new_crtc_state->mpo_requested |= (plane->type == DRM_PLANE_TYPE_OVERLAY);
9545
9546                 /* Tell DC to do a full surface update every time there
9547                  * is a plane change. Inefficient, but works for now.
9548                  */
9549                 dm_new_plane_state->dc_state->update_flags.bits.full_update = 1;
9550
9551                 *lock_and_validation_needed = true;
9552         }
9553
9554
9555         return ret;
9556 }
9557
9558 static void dm_get_oriented_plane_size(struct drm_plane_state *plane_state,
9559                                        int *src_w, int *src_h)
9560 {
9561         switch (plane_state->rotation & DRM_MODE_ROTATE_MASK) {
9562         case DRM_MODE_ROTATE_90:
9563         case DRM_MODE_ROTATE_270:
9564                 *src_w = plane_state->src_h >> 16;
9565                 *src_h = plane_state->src_w >> 16;
9566                 break;
9567         case DRM_MODE_ROTATE_0:
9568         case DRM_MODE_ROTATE_180:
9569         default:
9570                 *src_w = plane_state->src_w >> 16;
9571                 *src_h = plane_state->src_h >> 16;
9572                 break;
9573         }
9574 }
9575
9576 static int dm_check_crtc_cursor(struct drm_atomic_state *state,
9577                                 struct drm_crtc *crtc,
9578                                 struct drm_crtc_state *new_crtc_state)
9579 {
9580         struct drm_plane *cursor = crtc->cursor, *underlying;
9581         struct drm_plane_state *new_cursor_state, *new_underlying_state;
9582         int i;
9583         int cursor_scale_w, cursor_scale_h, underlying_scale_w, underlying_scale_h;
9584         int cursor_src_w, cursor_src_h;
9585         int underlying_src_w, underlying_src_h;
9586
9587         /* On DCE and DCN there is no dedicated hardware cursor plane. We get a
9588          * cursor per pipe but it's going to inherit the scaling and
9589          * positioning from the underlying pipe. Check the cursor plane's
9590          * blending properties match the underlying planes'. */
9591
9592         new_cursor_state = drm_atomic_get_new_plane_state(state, cursor);
9593         if (!new_cursor_state || !new_cursor_state->fb) {
9594                 return 0;
9595         }
9596
9597         dm_get_oriented_plane_size(new_cursor_state, &cursor_src_w, &cursor_src_h);
9598         cursor_scale_w = new_cursor_state->crtc_w * 1000 / cursor_src_w;
9599         cursor_scale_h = new_cursor_state->crtc_h * 1000 / cursor_src_h;
9600
9601         for_each_new_plane_in_state_reverse(state, underlying, new_underlying_state, i) {
9602                 /* Narrow down to non-cursor planes on the same CRTC as the cursor */
9603                 if (new_underlying_state->crtc != crtc || underlying == crtc->cursor)
9604                         continue;
9605
9606                 /* Ignore disabled planes */
9607                 if (!new_underlying_state->fb)
9608                         continue;
9609
9610                 dm_get_oriented_plane_size(new_underlying_state,
9611                                            &underlying_src_w, &underlying_src_h);
9612                 underlying_scale_w = new_underlying_state->crtc_w * 1000 / underlying_src_w;
9613                 underlying_scale_h = new_underlying_state->crtc_h * 1000 / underlying_src_h;
9614
9615                 if (cursor_scale_w != underlying_scale_w ||
9616                     cursor_scale_h != underlying_scale_h) {
9617                         drm_dbg_atomic(crtc->dev,
9618                                        "Cursor [PLANE:%d:%s] scaling doesn't match underlying [PLANE:%d:%s]\n",
9619                                        cursor->base.id, cursor->name, underlying->base.id, underlying->name);
9620                         return -EINVAL;
9621                 }
9622
9623                 /* If this plane covers the whole CRTC, no need to check planes underneath */
9624                 if (new_underlying_state->crtc_x <= 0 &&
9625                     new_underlying_state->crtc_y <= 0 &&
9626                     new_underlying_state->crtc_x + new_underlying_state->crtc_w >= new_crtc_state->mode.hdisplay &&
9627                     new_underlying_state->crtc_y + new_underlying_state->crtc_h >= new_crtc_state->mode.vdisplay)
9628                         break;
9629         }
9630
9631         return 0;
9632 }
9633
9634 #if defined(CONFIG_DRM_AMD_DC_DCN)
9635 static int add_affected_mst_dsc_crtcs(struct drm_atomic_state *state, struct drm_crtc *crtc)
9636 {
9637         struct drm_connector *connector;
9638         struct drm_connector_state *conn_state, *old_conn_state;
9639         struct amdgpu_dm_connector *aconnector = NULL;
9640         int i;
9641         for_each_oldnew_connector_in_state(state, connector, old_conn_state, conn_state, i) {
9642                 if (!conn_state->crtc)
9643                         conn_state = old_conn_state;
9644
9645                 if (conn_state->crtc != crtc)
9646                         continue;
9647
9648                 aconnector = to_amdgpu_dm_connector(connector);
9649                 if (!aconnector->mst_output_port || !aconnector->mst_root)
9650                         aconnector = NULL;
9651                 else
9652                         break;
9653         }
9654
9655         if (!aconnector)
9656                 return 0;
9657
9658         return drm_dp_mst_add_affected_dsc_crtcs(state, &aconnector->mst_root->mst_mgr);
9659 }
9660 #endif
9661
9662 /**
9663  * amdgpu_dm_atomic_check() - Atomic check implementation for AMDgpu DM.
9664  *
9665  * @dev: The DRM device
9666  * @state: The atomic state to commit
9667  *
9668  * Validate that the given atomic state is programmable by DC into hardware.
9669  * This involves constructing a &struct dc_state reflecting the new hardware
9670  * state we wish to commit, then querying DC to see if it is programmable. It's
9671  * important not to modify the existing DC state. Otherwise, atomic_check
9672  * may unexpectedly commit hardware changes.
9673  *
9674  * When validating the DC state, it's important that the right locks are
9675  * acquired. For full updates case which removes/adds/updates streams on one
9676  * CRTC while flipping on another CRTC, acquiring global lock will guarantee
9677  * that any such full update commit will wait for completion of any outstanding
9678  * flip using DRMs synchronization events.
9679  *
9680  * Note that DM adds the affected connectors for all CRTCs in state, when that
9681  * might not seem necessary. This is because DC stream creation requires the
9682  * DC sink, which is tied to the DRM connector state. Cleaning this up should
9683  * be possible but non-trivial - a possible TODO item.
9684  *
9685  * Return: -Error code if validation failed.
9686  */
9687 static int amdgpu_dm_atomic_check(struct drm_device *dev,
9688                                   struct drm_atomic_state *state)
9689 {
9690         struct amdgpu_device *adev = drm_to_adev(dev);
9691         struct dm_atomic_state *dm_state = NULL;
9692         struct dc *dc = adev->dm.dc;
9693         struct drm_connector *connector;
9694         struct drm_connector_state *old_con_state, *new_con_state;
9695         struct drm_crtc *crtc;
9696         struct drm_crtc_state *old_crtc_state, *new_crtc_state;
9697         struct drm_plane *plane;
9698         struct drm_plane_state *old_plane_state, *new_plane_state;
9699         enum dc_status status;
9700         int ret, i;
9701         bool lock_and_validation_needed = false;
9702         struct dm_crtc_state *dm_old_crtc_state, *dm_new_crtc_state;
9703 #if defined(CONFIG_DRM_AMD_DC_DCN)
9704         struct drm_dp_mst_topology_mgr *mgr;
9705         struct drm_dp_mst_topology_state *mst_state;
9706         struct dsc_mst_fairness_vars vars[MAX_PIPES];
9707 #endif
9708
9709         trace_amdgpu_dm_atomic_check_begin(state);
9710
9711         ret = drm_atomic_helper_check_modeset(dev, state);
9712         if (ret) {
9713                 DRM_DEBUG_DRIVER("drm_atomic_helper_check_modeset() failed\n");
9714                 goto fail;
9715         }
9716
9717         /* Check connector changes */
9718         for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) {
9719                 struct dm_connector_state *dm_old_con_state = to_dm_connector_state(old_con_state);
9720                 struct dm_connector_state *dm_new_con_state = to_dm_connector_state(new_con_state);
9721
9722                 /* Skip connectors that are disabled or part of modeset already. */
9723                 if (!new_con_state->crtc)
9724                         continue;
9725
9726                 new_crtc_state = drm_atomic_get_crtc_state(state, new_con_state->crtc);
9727                 if (IS_ERR(new_crtc_state)) {
9728                         DRM_DEBUG_DRIVER("drm_atomic_get_crtc_state() failed\n");
9729                         ret = PTR_ERR(new_crtc_state);
9730                         goto fail;
9731                 }
9732
9733                 if (dm_old_con_state->abm_level != dm_new_con_state->abm_level ||
9734                     dm_old_con_state->scaling != dm_new_con_state->scaling)
9735                         new_crtc_state->connectors_changed = true;
9736         }
9737
9738 #if defined(CONFIG_DRM_AMD_DC_DCN)
9739         if (dc_resource_is_dsc_encoding_supported(dc)) {
9740                 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
9741                         if (drm_atomic_crtc_needs_modeset(new_crtc_state)) {
9742                                 ret = add_affected_mst_dsc_crtcs(state, crtc);
9743                                 if (ret) {
9744                                         DRM_DEBUG_DRIVER("add_affected_mst_dsc_crtcs() failed\n");
9745                                         goto fail;
9746                                 }
9747                         }
9748                 }
9749         }
9750 #endif
9751         for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
9752                 dm_old_crtc_state = to_dm_crtc_state(old_crtc_state);
9753
9754                 if (!drm_atomic_crtc_needs_modeset(new_crtc_state) &&
9755                     !new_crtc_state->color_mgmt_changed &&
9756                     old_crtc_state->vrr_enabled == new_crtc_state->vrr_enabled &&
9757                         dm_old_crtc_state->dsc_force_changed == false)
9758                         continue;
9759
9760                 ret = amdgpu_dm_verify_lut_sizes(new_crtc_state);
9761                 if (ret) {
9762                         DRM_DEBUG_DRIVER("amdgpu_dm_verify_lut_sizes() failed\n");
9763                         goto fail;
9764                 }
9765
9766                 if (!new_crtc_state->enable)
9767                         continue;
9768
9769                 ret = drm_atomic_add_affected_connectors(state, crtc);
9770                 if (ret) {
9771                         DRM_DEBUG_DRIVER("drm_atomic_add_affected_connectors() failed\n");
9772                         goto fail;
9773                 }
9774
9775                 ret = drm_atomic_add_affected_planes(state, crtc);
9776                 if (ret) {
9777                         DRM_DEBUG_DRIVER("drm_atomic_add_affected_planes() failed\n");
9778                         goto fail;
9779                 }
9780
9781                 if (dm_old_crtc_state->dsc_force_changed)
9782                         new_crtc_state->mode_changed = true;
9783         }
9784
9785         /*
9786          * Add all primary and overlay planes on the CRTC to the state
9787          * whenever a plane is enabled to maintain correct z-ordering
9788          * and to enable fast surface updates.
9789          */
9790         drm_for_each_crtc(crtc, dev) {
9791                 bool modified = false;
9792
9793                 for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, i) {
9794                         if (plane->type == DRM_PLANE_TYPE_CURSOR)
9795                                 continue;
9796
9797                         if (new_plane_state->crtc == crtc ||
9798                             old_plane_state->crtc == crtc) {
9799                                 modified = true;
9800                                 break;
9801                         }
9802                 }
9803
9804                 if (!modified)
9805                         continue;
9806
9807                 drm_for_each_plane_mask(plane, state->dev, crtc->state->plane_mask) {
9808                         if (plane->type == DRM_PLANE_TYPE_CURSOR)
9809                                 continue;
9810
9811                         new_plane_state =
9812                                 drm_atomic_get_plane_state(state, plane);
9813
9814                         if (IS_ERR(new_plane_state)) {
9815                                 ret = PTR_ERR(new_plane_state);
9816                                 DRM_DEBUG_DRIVER("new_plane_state is BAD\n");
9817                                 goto fail;
9818                         }
9819                 }
9820         }
9821
9822         /*
9823          * DC consults the zpos (layer_index in DC terminology) to determine the
9824          * hw plane on which to enable the hw cursor (see
9825          * `dcn10_can_pipe_disable_cursor`). By now, all modified planes are in
9826          * atomic state, so call drm helper to normalize zpos.
9827          */
9828         drm_atomic_normalize_zpos(dev, state);
9829
9830         /* Remove exiting planes if they are modified */
9831         for_each_oldnew_plane_in_state_reverse(state, plane, old_plane_state, new_plane_state, i) {
9832                 ret = dm_update_plane_state(dc, state, plane,
9833                                             old_plane_state,
9834                                             new_plane_state,
9835                                             false,
9836                                             &lock_and_validation_needed);
9837                 if (ret) {
9838                         DRM_DEBUG_DRIVER("dm_update_plane_state() failed\n");
9839                         goto fail;
9840                 }
9841         }
9842
9843         /* Disable all crtcs which require disable */
9844         for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
9845                 ret = dm_update_crtc_state(&adev->dm, state, crtc,
9846                                            old_crtc_state,
9847                                            new_crtc_state,
9848                                            false,
9849                                            &lock_and_validation_needed);
9850                 if (ret) {
9851                         DRM_DEBUG_DRIVER("DISABLE: dm_update_crtc_state() failed\n");
9852                         goto fail;
9853                 }
9854         }
9855
9856         /* Enable all crtcs which require enable */
9857         for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
9858                 ret = dm_update_crtc_state(&adev->dm, state, crtc,
9859                                            old_crtc_state,
9860                                            new_crtc_state,
9861                                            true,
9862                                            &lock_and_validation_needed);
9863                 if (ret) {
9864                         DRM_DEBUG_DRIVER("ENABLE: dm_update_crtc_state() failed\n");
9865                         goto fail;
9866                 }
9867         }
9868
9869         /* Add new/modified planes */
9870         for_each_oldnew_plane_in_state_reverse(state, plane, old_plane_state, new_plane_state, i) {
9871                 ret = dm_update_plane_state(dc, state, plane,
9872                                             old_plane_state,
9873                                             new_plane_state,
9874                                             true,
9875                                             &lock_and_validation_needed);
9876                 if (ret) {
9877                         DRM_DEBUG_DRIVER("dm_update_plane_state() failed\n");
9878                         goto fail;
9879                 }
9880         }
9881
9882 #if defined(CONFIG_DRM_AMD_DC_DCN)
9883         if (dc_resource_is_dsc_encoding_supported(dc)) {
9884                 ret = pre_validate_dsc(state, &dm_state, vars);
9885                 if (ret != 0)
9886                         goto fail;
9887         }
9888 #endif
9889
9890         /* Run this here since we want to validate the streams we created */
9891         ret = drm_atomic_helper_check_planes(dev, state);
9892         if (ret) {
9893                 DRM_DEBUG_DRIVER("drm_atomic_helper_check_planes() failed\n");
9894                 goto fail;
9895         }
9896
9897         for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
9898                 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
9899                 if (dm_new_crtc_state->mpo_requested)
9900                         DRM_DEBUG_DRIVER("MPO enablement requested on crtc:[%p]\n", crtc);
9901         }
9902
9903         /* Check cursor planes scaling */
9904         for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
9905                 ret = dm_check_crtc_cursor(state, crtc, new_crtc_state);
9906                 if (ret) {
9907                         DRM_DEBUG_DRIVER("dm_check_crtc_cursor() failed\n");
9908                         goto fail;
9909                 }
9910         }
9911
9912         if (state->legacy_cursor_update) {
9913                 /*
9914                  * This is a fast cursor update coming from the plane update
9915                  * helper, check if it can be done asynchronously for better
9916                  * performance.
9917                  */
9918                 state->async_update =
9919                         !drm_atomic_helper_async_check(dev, state);
9920
9921                 /*
9922                  * Skip the remaining global validation if this is an async
9923                  * update. Cursor updates can be done without affecting
9924                  * state or bandwidth calcs and this avoids the performance
9925                  * penalty of locking the private state object and
9926                  * allocating a new dc_state.
9927                  */
9928                 if (state->async_update)
9929                         return 0;
9930         }
9931
9932         /* Check scaling and underscan changes*/
9933         /* TODO Removed scaling changes validation due to inability to commit
9934          * new stream into context w\o causing full reset. Need to
9935          * decide how to handle.
9936          */
9937         for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) {
9938                 struct dm_connector_state *dm_old_con_state = to_dm_connector_state(old_con_state);
9939                 struct dm_connector_state *dm_new_con_state = to_dm_connector_state(new_con_state);
9940                 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(dm_new_con_state->base.crtc);
9941
9942                 /* Skip any modesets/resets */
9943                 if (!acrtc || drm_atomic_crtc_needs_modeset(
9944                                 drm_atomic_get_new_crtc_state(state, &acrtc->base)))
9945                         continue;
9946
9947                 /* Skip any thing not scale or underscan changes */
9948                 if (!is_scaling_state_different(dm_new_con_state, dm_old_con_state))
9949                         continue;
9950
9951                 lock_and_validation_needed = true;
9952         }
9953
9954 #if defined(CONFIG_DRM_AMD_DC_DCN)
9955         /* set the slot info for each mst_state based on the link encoding format */
9956         for_each_new_mst_mgr_in_state(state, mgr, mst_state, i) {
9957                 struct amdgpu_dm_connector *aconnector;
9958                 struct drm_connector *connector;
9959                 struct drm_connector_list_iter iter;
9960                 u8 link_coding_cap;
9961
9962                 drm_connector_list_iter_begin(dev, &iter);
9963                 drm_for_each_connector_iter(connector, &iter) {
9964                         if (connector->index == mst_state->mgr->conn_base_id) {
9965                                 aconnector = to_amdgpu_dm_connector(connector);
9966                                 link_coding_cap = dc_link_dp_mst_decide_link_encoding_format(aconnector->dc_link);
9967                                 drm_dp_mst_update_slots(mst_state, link_coding_cap);
9968
9969                                 break;
9970                         }
9971                 }
9972                 drm_connector_list_iter_end(&iter);
9973         }
9974 #endif
9975
9976         /**
9977          * Streams and planes are reset when there are changes that affect
9978          * bandwidth. Anything that affects bandwidth needs to go through
9979          * DC global validation to ensure that the configuration can be applied
9980          * to hardware.
9981          *
9982          * We have to currently stall out here in atomic_check for outstanding
9983          * commits to finish in this case because our IRQ handlers reference
9984          * DRM state directly - we can end up disabling interrupts too early
9985          * if we don't.
9986          *
9987          * TODO: Remove this stall and drop DM state private objects.
9988          */
9989         if (lock_and_validation_needed) {
9990                 ret = dm_atomic_get_state(state, &dm_state);
9991                 if (ret) {
9992                         DRM_DEBUG_DRIVER("dm_atomic_get_state() failed\n");
9993                         goto fail;
9994                 }
9995
9996                 ret = do_aquire_global_lock(dev, state);
9997                 if (ret) {
9998                         DRM_DEBUG_DRIVER("do_aquire_global_lock() failed\n");
9999                         goto fail;
10000                 }
10001
10002 #if defined(CONFIG_DRM_AMD_DC_DCN)
10003                 ret = compute_mst_dsc_configs_for_state(state, dm_state->context, vars);
10004                 if (ret) {
10005                         DRM_DEBUG_DRIVER("compute_mst_dsc_configs_for_state() failed\n");
10006                         goto fail;
10007                 }
10008
10009                 ret = dm_update_mst_vcpi_slots_for_dsc(state, dm_state->context, vars);
10010                 if (ret) {
10011                         DRM_DEBUG_DRIVER("dm_update_mst_vcpi_slots_for_dsc() failed\n");
10012                         goto fail;
10013                 }
10014 #endif
10015
10016                 /*
10017                  * Perform validation of MST topology in the state:
10018                  * We need to perform MST atomic check before calling
10019                  * dc_validate_global_state(), or there is a chance
10020                  * to get stuck in an infinite loop and hang eventually.
10021                  */
10022                 ret = drm_dp_mst_atomic_check(state);
10023                 if (ret) {
10024                         DRM_DEBUG_DRIVER("drm_dp_mst_atomic_check() failed\n");
10025                         goto fail;
10026                 }
10027                 status = dc_validate_global_state(dc, dm_state->context, true);
10028                 if (status != DC_OK) {
10029                         DRM_DEBUG_DRIVER("DC global validation failure: %s (%d)",
10030                                        dc_status_to_str(status), status);
10031                         ret = -EINVAL;
10032                         goto fail;
10033                 }
10034         } else {
10035                 /*
10036                  * The commit is a fast update. Fast updates shouldn't change
10037                  * the DC context, affect global validation, and can have their
10038                  * commit work done in parallel with other commits not touching
10039                  * the same resource. If we have a new DC context as part of
10040                  * the DM atomic state from validation we need to free it and
10041                  * retain the existing one instead.
10042                  *
10043                  * Furthermore, since the DM atomic state only contains the DC
10044                  * context and can safely be annulled, we can free the state
10045                  * and clear the associated private object now to free
10046                  * some memory and avoid a possible use-after-free later.
10047                  */
10048
10049                 for (i = 0; i < state->num_private_objs; i++) {
10050                         struct drm_private_obj *obj = state->private_objs[i].ptr;
10051
10052                         if (obj->funcs == adev->dm.atomic_obj.funcs) {
10053                                 int j = state->num_private_objs-1;
10054
10055                                 dm_atomic_destroy_state(obj,
10056                                                 state->private_objs[i].state);
10057
10058                                 /* If i is not at the end of the array then the
10059                                  * last element needs to be moved to where i was
10060                                  * before the array can safely be truncated.
10061                                  */
10062                                 if (i != j)
10063                                         state->private_objs[i] =
10064                                                 state->private_objs[j];
10065
10066                                 state->private_objs[j].ptr = NULL;
10067                                 state->private_objs[j].state = NULL;
10068                                 state->private_objs[j].old_state = NULL;
10069                                 state->private_objs[j].new_state = NULL;
10070
10071                                 state->num_private_objs = j;
10072                                 break;
10073                         }
10074                 }
10075         }
10076
10077         /* Store the overall update type for use later in atomic check. */
10078         for_each_new_crtc_in_state (state, crtc, new_crtc_state, i) {
10079                 struct dm_crtc_state *dm_new_crtc_state =
10080                         to_dm_crtc_state(new_crtc_state);
10081
10082                 dm_new_crtc_state->update_type = lock_and_validation_needed ?
10083                                                          UPDATE_TYPE_FULL :
10084                                                          UPDATE_TYPE_FAST;
10085         }
10086
10087         /* Must be success */
10088         WARN_ON(ret);
10089
10090         trace_amdgpu_dm_atomic_check_finish(state, ret);
10091
10092         return ret;
10093
10094 fail:
10095         if (ret == -EDEADLK)
10096                 DRM_DEBUG_DRIVER("Atomic check stopped to avoid deadlock.\n");
10097         else if (ret == -EINTR || ret == -EAGAIN || ret == -ERESTARTSYS)
10098                 DRM_DEBUG_DRIVER("Atomic check stopped due to signal.\n");
10099         else
10100                 DRM_DEBUG_DRIVER("Atomic check failed with err: %d \n", ret);
10101
10102         trace_amdgpu_dm_atomic_check_finish(state, ret);
10103
10104         return ret;
10105 }
10106
10107 static bool is_dp_capable_without_timing_msa(struct dc *dc,
10108                                              struct amdgpu_dm_connector *amdgpu_dm_connector)
10109 {
10110         u8 dpcd_data;
10111         bool capable = false;
10112
10113         if (amdgpu_dm_connector->dc_link &&
10114                 dm_helpers_dp_read_dpcd(
10115                                 NULL,
10116                                 amdgpu_dm_connector->dc_link,
10117                                 DP_DOWN_STREAM_PORT_COUNT,
10118                                 &dpcd_data,
10119                                 sizeof(dpcd_data))) {
10120                 capable = (dpcd_data & DP_MSA_TIMING_PAR_IGNORED) ? true:false;
10121         }
10122
10123         return capable;
10124 }
10125
10126 static bool dm_edid_parser_send_cea(struct amdgpu_display_manager *dm,
10127                 unsigned int offset,
10128                 unsigned int total_length,
10129                 u8 *data,
10130                 unsigned int length,
10131                 struct amdgpu_hdmi_vsdb_info *vsdb)
10132 {
10133         bool res;
10134         union dmub_rb_cmd cmd;
10135         struct dmub_cmd_send_edid_cea *input;
10136         struct dmub_cmd_edid_cea_output *output;
10137
10138         if (length > DMUB_EDID_CEA_DATA_CHUNK_BYTES)
10139                 return false;
10140
10141         memset(&cmd, 0, sizeof(cmd));
10142
10143         input = &cmd.edid_cea.data.input;
10144
10145         cmd.edid_cea.header.type = DMUB_CMD__EDID_CEA;
10146         cmd.edid_cea.header.sub_type = 0;
10147         cmd.edid_cea.header.payload_bytes =
10148                 sizeof(cmd.edid_cea) - sizeof(cmd.edid_cea.header);
10149         input->offset = offset;
10150         input->length = length;
10151         input->cea_total_length = total_length;
10152         memcpy(input->payload, data, length);
10153
10154         res = dc_dmub_srv_cmd_with_reply_data(dm->dc->ctx->dmub_srv, &cmd);
10155         if (!res) {
10156                 DRM_ERROR("EDID CEA parser failed\n");
10157                 return false;
10158         }
10159
10160         output = &cmd.edid_cea.data.output;
10161
10162         if (output->type == DMUB_CMD__EDID_CEA_ACK) {
10163                 if (!output->ack.success) {
10164                         DRM_ERROR("EDID CEA ack failed at offset %d\n",
10165                                         output->ack.offset);
10166                 }
10167         } else if (output->type == DMUB_CMD__EDID_CEA_AMD_VSDB) {
10168                 if (!output->amd_vsdb.vsdb_found)
10169                         return false;
10170
10171                 vsdb->freesync_supported = output->amd_vsdb.freesync_supported;
10172                 vsdb->amd_vsdb_version = output->amd_vsdb.amd_vsdb_version;
10173                 vsdb->min_refresh_rate_hz = output->amd_vsdb.min_frame_rate;
10174                 vsdb->max_refresh_rate_hz = output->amd_vsdb.max_frame_rate;
10175         } else {
10176                 DRM_WARN("Unknown EDID CEA parser results\n");
10177                 return false;
10178         }
10179
10180         return true;
10181 }
10182
10183 static bool parse_edid_cea_dmcu(struct amdgpu_display_manager *dm,
10184                 u8 *edid_ext, int len,
10185                 struct amdgpu_hdmi_vsdb_info *vsdb_info)
10186 {
10187         int i;
10188
10189         /* send extension block to DMCU for parsing */
10190         for (i = 0; i < len; i += 8) {
10191                 bool res;
10192                 int offset;
10193
10194                 /* send 8 bytes a time */
10195                 if (!dc_edid_parser_send_cea(dm->dc, i, len, &edid_ext[i], 8))
10196                         return false;
10197
10198                 if (i+8 == len) {
10199                         /* EDID block sent completed, expect result */
10200                         int version, min_rate, max_rate;
10201
10202                         res = dc_edid_parser_recv_amd_vsdb(dm->dc, &version, &min_rate, &max_rate);
10203                         if (res) {
10204                                 /* amd vsdb found */
10205                                 vsdb_info->freesync_supported = 1;
10206                                 vsdb_info->amd_vsdb_version = version;
10207                                 vsdb_info->min_refresh_rate_hz = min_rate;
10208                                 vsdb_info->max_refresh_rate_hz = max_rate;
10209                                 return true;
10210                         }
10211                         /* not amd vsdb */
10212                         return false;
10213                 }
10214
10215                 /* check for ack*/
10216                 res = dc_edid_parser_recv_cea_ack(dm->dc, &offset);
10217                 if (!res)
10218                         return false;
10219         }
10220
10221         return false;
10222 }
10223
10224 static bool parse_edid_cea_dmub(struct amdgpu_display_manager *dm,
10225                 u8 *edid_ext, int len,
10226                 struct amdgpu_hdmi_vsdb_info *vsdb_info)
10227 {
10228         int i;
10229
10230         /* send extension block to DMCU for parsing */
10231         for (i = 0; i < len; i += 8) {
10232                 /* send 8 bytes a time */
10233                 if (!dm_edid_parser_send_cea(dm, i, len, &edid_ext[i], 8, vsdb_info))
10234                         return false;
10235         }
10236
10237         return vsdb_info->freesync_supported;
10238 }
10239
10240 static bool parse_edid_cea(struct amdgpu_dm_connector *aconnector,
10241                 u8 *edid_ext, int len,
10242                 struct amdgpu_hdmi_vsdb_info *vsdb_info)
10243 {
10244         struct amdgpu_device *adev = drm_to_adev(aconnector->base.dev);
10245         bool ret;
10246
10247         mutex_lock(&adev->dm.dc_lock);
10248         if (adev->dm.dmub_srv)
10249                 ret = parse_edid_cea_dmub(&adev->dm, edid_ext, len, vsdb_info);
10250         else
10251                 ret = parse_edid_cea_dmcu(&adev->dm, edid_ext, len, vsdb_info);
10252         mutex_unlock(&adev->dm.dc_lock);
10253         return ret;
10254 }
10255
10256 static int parse_hdmi_amd_vsdb(struct amdgpu_dm_connector *aconnector,
10257                 struct edid *edid, struct amdgpu_hdmi_vsdb_info *vsdb_info)
10258 {
10259         u8 *edid_ext = NULL;
10260         int i;
10261         bool valid_vsdb_found = false;
10262
10263         /*----- drm_find_cea_extension() -----*/
10264         /* No EDID or EDID extensions */
10265         if (edid == NULL || edid->extensions == 0)
10266                 return -ENODEV;
10267
10268         /* Find CEA extension */
10269         for (i = 0; i < edid->extensions; i++) {
10270                 edid_ext = (uint8_t *)edid + EDID_LENGTH * (i + 1);
10271                 if (edid_ext[0] == CEA_EXT)
10272                         break;
10273         }
10274
10275         if (i == edid->extensions)
10276                 return -ENODEV;
10277
10278         /*----- cea_db_offsets() -----*/
10279         if (edid_ext[0] != CEA_EXT)
10280                 return -ENODEV;
10281
10282         valid_vsdb_found = parse_edid_cea(aconnector, edid_ext, EDID_LENGTH, vsdb_info);
10283
10284         return valid_vsdb_found ? i : -ENODEV;
10285 }
10286
10287 /**
10288  * amdgpu_dm_update_freesync_caps - Update Freesync capabilities
10289  *
10290  * @connector: Connector to query.
10291  * @edid: EDID from monitor
10292  *
10293  * Amdgpu supports Freesync in DP and HDMI displays, and it is required to keep
10294  * track of some of the display information in the internal data struct used by
10295  * amdgpu_dm. This function checks which type of connector we need to set the
10296  * FreeSync parameters.
10297  */
10298 void amdgpu_dm_update_freesync_caps(struct drm_connector *connector,
10299                                     struct edid *edid)
10300 {
10301         int i = 0;
10302         struct detailed_timing *timing;
10303         struct detailed_non_pixel *data;
10304         struct detailed_data_monitor_range *range;
10305         struct amdgpu_dm_connector *amdgpu_dm_connector =
10306                         to_amdgpu_dm_connector(connector);
10307         struct dm_connector_state *dm_con_state = NULL;
10308         struct dc_sink *sink;
10309
10310         struct drm_device *dev = connector->dev;
10311         struct amdgpu_device *adev = drm_to_adev(dev);
10312         struct amdgpu_hdmi_vsdb_info vsdb_info = {0};
10313         bool freesync_capable = false;
10314
10315         if (!connector->state) {
10316                 DRM_ERROR("%s - Connector has no state", __func__);
10317                 goto update;
10318         }
10319
10320         sink = amdgpu_dm_connector->dc_sink ?
10321                 amdgpu_dm_connector->dc_sink :
10322                 amdgpu_dm_connector->dc_em_sink;
10323
10324         if (!edid || !sink) {
10325                 dm_con_state = to_dm_connector_state(connector->state);
10326
10327                 amdgpu_dm_connector->min_vfreq = 0;
10328                 amdgpu_dm_connector->max_vfreq = 0;
10329                 amdgpu_dm_connector->pixel_clock_mhz = 0;
10330                 connector->display_info.monitor_range.min_vfreq = 0;
10331                 connector->display_info.monitor_range.max_vfreq = 0;
10332                 freesync_capable = false;
10333
10334                 goto update;
10335         }
10336
10337         dm_con_state = to_dm_connector_state(connector->state);
10338
10339         if (!adev->dm.freesync_module)
10340                 goto update;
10341
10342         if (sink->sink_signal == SIGNAL_TYPE_DISPLAY_PORT
10343                 || sink->sink_signal == SIGNAL_TYPE_EDP) {
10344                 bool edid_check_required = false;
10345
10346                 if (edid) {
10347                         edid_check_required = is_dp_capable_without_timing_msa(
10348                                                 adev->dm.dc,
10349                                                 amdgpu_dm_connector);
10350                 }
10351
10352                 if (edid_check_required == true && (edid->version > 1 ||
10353                    (edid->version == 1 && edid->revision > 1))) {
10354                         for (i = 0; i < 4; i++) {
10355
10356                                 timing  = &edid->detailed_timings[i];
10357                                 data    = &timing->data.other_data;
10358                                 range   = &data->data.range;
10359                                 /*
10360                                  * Check if monitor has continuous frequency mode
10361                                  */
10362                                 if (data->type != EDID_DETAIL_MONITOR_RANGE)
10363                                         continue;
10364                                 /*
10365                                  * Check for flag range limits only. If flag == 1 then
10366                                  * no additional timing information provided.
10367                                  * Default GTF, GTF Secondary curve and CVT are not
10368                                  * supported
10369                                  */
10370                                 if (range->flags != 1)
10371                                         continue;
10372
10373                                 amdgpu_dm_connector->min_vfreq = range->min_vfreq;
10374                                 amdgpu_dm_connector->max_vfreq = range->max_vfreq;
10375                                 amdgpu_dm_connector->pixel_clock_mhz =
10376                                         range->pixel_clock_mhz * 10;
10377
10378                                 connector->display_info.monitor_range.min_vfreq = range->min_vfreq;
10379                                 connector->display_info.monitor_range.max_vfreq = range->max_vfreq;
10380
10381                                 break;
10382                         }
10383
10384                         if (amdgpu_dm_connector->max_vfreq -
10385                             amdgpu_dm_connector->min_vfreq > 10) {
10386
10387                                 freesync_capable = true;
10388                         }
10389                 }
10390         } else if (edid && sink->sink_signal == SIGNAL_TYPE_HDMI_TYPE_A) {
10391                 i = parse_hdmi_amd_vsdb(amdgpu_dm_connector, edid, &vsdb_info);
10392                 if (i >= 0 && vsdb_info.freesync_supported) {
10393                         timing  = &edid->detailed_timings[i];
10394                         data    = &timing->data.other_data;
10395
10396                         amdgpu_dm_connector->min_vfreq = vsdb_info.min_refresh_rate_hz;
10397                         amdgpu_dm_connector->max_vfreq = vsdb_info.max_refresh_rate_hz;
10398                         if (amdgpu_dm_connector->max_vfreq - amdgpu_dm_connector->min_vfreq > 10)
10399                                 freesync_capable = true;
10400
10401                         connector->display_info.monitor_range.min_vfreq = vsdb_info.min_refresh_rate_hz;
10402                         connector->display_info.monitor_range.max_vfreq = vsdb_info.max_refresh_rate_hz;
10403                 }
10404         }
10405
10406 update:
10407         if (dm_con_state)
10408                 dm_con_state->freesync_capable = freesync_capable;
10409
10410         if (connector->vrr_capable_property)
10411                 drm_connector_set_vrr_capable_property(connector,
10412                                                        freesync_capable);
10413 }
10414
10415 void amdgpu_dm_trigger_timing_sync(struct drm_device *dev)
10416 {
10417         struct amdgpu_device *adev = drm_to_adev(dev);
10418         struct dc *dc = adev->dm.dc;
10419         int i;
10420
10421         mutex_lock(&adev->dm.dc_lock);
10422         if (dc->current_state) {
10423                 for (i = 0; i < dc->current_state->stream_count; ++i)
10424                         dc->current_state->streams[i]
10425                                 ->triggered_crtc_reset.enabled =
10426                                 adev->dm.force_timing_sync;
10427
10428                 dm_enable_per_frame_crtc_master_sync(dc->current_state);
10429                 dc_trigger_sync(dc, dc->current_state);
10430         }
10431         mutex_unlock(&adev->dm.dc_lock);
10432 }
10433
10434 void dm_write_reg_func(const struct dc_context *ctx, uint32_t address,
10435                        u32 value, const char *func_name)
10436 {
10437 #ifdef DM_CHECK_ADDR_0
10438         if (address == 0) {
10439                 DC_ERR("invalid register write. address = 0");
10440                 return;
10441         }
10442 #endif
10443         cgs_write_register(ctx->cgs_device, address, value);
10444         trace_amdgpu_dc_wreg(&ctx->perf_trace->write_count, address, value);
10445 }
10446
10447 uint32_t dm_read_reg_func(const struct dc_context *ctx, uint32_t address,
10448                           const char *func_name)
10449 {
10450         u32 value;
10451 #ifdef DM_CHECK_ADDR_0
10452         if (address == 0) {
10453                 DC_ERR("invalid register read; address = 0\n");
10454                 return 0;
10455         }
10456 #endif
10457
10458         if (ctx->dmub_srv &&
10459             ctx->dmub_srv->reg_helper_offload.gather_in_progress &&
10460             !ctx->dmub_srv->reg_helper_offload.should_burst_write) {
10461                 ASSERT(false);
10462                 return 0;
10463         }
10464
10465         value = cgs_read_register(ctx->cgs_device, address);
10466
10467         trace_amdgpu_dc_rreg(&ctx->perf_trace->read_count, address, value);
10468
10469         return value;
10470 }
10471
10472 int amdgpu_dm_process_dmub_aux_transfer_sync(
10473                 struct dc_context *ctx,
10474                 unsigned int link_index,
10475                 struct aux_payload *payload,
10476                 enum aux_return_code_type *operation_result)
10477 {
10478         struct amdgpu_device *adev = ctx->driver_context;
10479         struct dmub_notification *p_notify = adev->dm.dmub_notify;
10480         int ret = -1;
10481
10482         mutex_lock(&adev->dm.dpia_aux_lock);
10483         if (!dc_process_dmub_aux_transfer_async(ctx->dc, link_index, payload)) {
10484                 *operation_result = AUX_RET_ERROR_ENGINE_ACQUIRE;
10485                 goto out;
10486         }
10487
10488         if (!wait_for_completion_timeout(&adev->dm.dmub_aux_transfer_done, 10 * HZ)) {
10489                 DRM_ERROR("wait_for_completion_timeout timeout!");
10490                 *operation_result = AUX_RET_ERROR_TIMEOUT;
10491                 goto out;
10492         }
10493
10494         if (p_notify->result != AUX_RET_SUCCESS) {
10495                 /*
10496                  * Transient states before tunneling is enabled could
10497                  * lead to this error. We can ignore this for now.
10498                  */
10499                 if (p_notify->result != AUX_RET_ERROR_PROTOCOL_ERROR) {
10500                         DRM_WARN("DPIA AUX failed on 0x%x(%d), error %d\n",
10501                                         payload->address, payload->length,
10502                                         p_notify->result);
10503                 }
10504                 *operation_result = AUX_RET_ERROR_INVALID_REPLY;
10505                 goto out;
10506         }
10507
10508
10509         payload->reply[0] = adev->dm.dmub_notify->aux_reply.command;
10510         if (!payload->write && p_notify->aux_reply.length &&
10511                         (payload->reply[0] == AUX_TRANSACTION_REPLY_AUX_ACK)) {
10512
10513                 if (payload->length != p_notify->aux_reply.length) {
10514                         DRM_WARN("invalid read length %d from DPIA AUX 0x%x(%d)!\n",
10515                                 p_notify->aux_reply.length,
10516                                         payload->address, payload->length);
10517                         *operation_result = AUX_RET_ERROR_INVALID_REPLY;
10518                         goto out;
10519                 }
10520
10521                 memcpy(payload->data, p_notify->aux_reply.data,
10522                                 p_notify->aux_reply.length);
10523         }
10524
10525         /* success */
10526         ret = p_notify->aux_reply.length;
10527         *operation_result = p_notify->result;
10528 out:
10529         reinit_completion(&adev->dm.dmub_aux_transfer_done);
10530         mutex_unlock(&adev->dm.dpia_aux_lock);
10531         return ret;
10532 }
10533
10534 int amdgpu_dm_process_dmub_set_config_sync(
10535                 struct dc_context *ctx,
10536                 unsigned int link_index,
10537                 struct set_config_cmd_payload *payload,
10538                 enum set_config_status *operation_result)
10539 {
10540         struct amdgpu_device *adev = ctx->driver_context;
10541         bool is_cmd_complete;
10542         int ret;
10543
10544         mutex_lock(&adev->dm.dpia_aux_lock);
10545         is_cmd_complete = dc_process_dmub_set_config_async(ctx->dc,
10546                         link_index, payload, adev->dm.dmub_notify);
10547
10548         if (is_cmd_complete || wait_for_completion_timeout(&adev->dm.dmub_aux_transfer_done, 10 * HZ)) {
10549                 ret = 0;
10550                 *operation_result = adev->dm.dmub_notify->sc_status;
10551         } else {
10552                 DRM_ERROR("wait_for_completion_timeout timeout!");
10553                 ret = -1;
10554                 *operation_result = SET_CONFIG_UNKNOWN_ERROR;
10555         }
10556
10557         if (!is_cmd_complete)
10558                 reinit_completion(&adev->dm.dmub_aux_transfer_done);
10559         mutex_unlock(&adev->dm.dpia_aux_lock);
10560         return ret;
10561 }
10562
10563 /*
10564  * Check whether seamless boot is supported.
10565  *
10566  * So far we only support seamless boot on CHIP_VANGOGH.
10567  * If everything goes well, we may consider expanding
10568  * seamless boot to other ASICs.
10569  */
10570 bool check_seamless_boot_capability(struct amdgpu_device *adev)
10571 {
10572         switch (adev->ip_versions[DCE_HWIP][0]) {
10573         case IP_VERSION(3, 0, 1):
10574                 if (!adev->mman.keep_stolen_vga_memory)
10575                         return true;
10576                 break;
10577         default:
10578                 break;
10579         }
10580
10581         return false;
10582 }