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 "dc/inc/core_types.h" 32 33 #include "vid.h" 34 #include "amdgpu.h" 35 #include "amdgpu_display.h" 36 #include "amdgpu_ucode.h" 37 #include "atom.h" 38 #include "amdgpu_dm.h" 39 #include "amdgpu_pm.h" 40 41 #include "amd_shared.h" 42 #include "amdgpu_dm_irq.h" 43 #include "dm_helpers.h" 44 #include "amdgpu_dm_mst_types.h" 45 #if defined(CONFIG_DEBUG_FS) 46 #include "amdgpu_dm_debugfs.h" 47 #endif 48 49 #include "ivsrcid/ivsrcid_vislands30.h" 50 51 #include <linux/module.h> 52 #include <linux/moduleparam.h> 53 #include <linux/version.h> 54 #include <linux/types.h> 55 #include <linux/pm_runtime.h> 56 #include <linux/firmware.h> 57 58 #include <drm/drmP.h> 59 #include <drm/drm_atomic.h> 60 #include <drm/drm_atomic_uapi.h> 61 #include <drm/drm_atomic_helper.h> 62 #include <drm/drm_dp_mst_helper.h> 63 #include <drm/drm_fb_helper.h> 64 #include <drm/drm_edid.h> 65 66 #if defined(CONFIG_DRM_AMD_DC_DCN1_0) 67 #include "ivsrcid/irqsrcs_dcn_1_0.h" 68 69 #include "dcn/dcn_1_0_offset.h" 70 #include "dcn/dcn_1_0_sh_mask.h" 71 #include "soc15_hw_ip.h" 72 #include "vega10_ip_offset.h" 73 74 #include "soc15_common.h" 75 #endif 76 77 #include "modules/inc/mod_freesync.h" 78 #include "modules/power/power_helpers.h" 79 #include "modules/inc/mod_info_packet.h" 80 81 #define FIRMWARE_RAVEN_DMCU "amdgpu/raven_dmcu.bin" 82 MODULE_FIRMWARE(FIRMWARE_RAVEN_DMCU); 83 84 /** 85 * DOC: overview 86 * 87 * The AMDgpu display manager, **amdgpu_dm** (or even simpler, 88 * **dm**) sits between DRM and DC. It acts as a liason, converting DRM 89 * requests into DC requests, and DC responses into DRM responses. 90 * 91 * The root control structure is &struct amdgpu_display_manager. 92 */ 93 94 /* basic init/fini API */ 95 static int amdgpu_dm_init(struct amdgpu_device *adev); 96 static void amdgpu_dm_fini(struct amdgpu_device *adev); 97 98 /* 99 * initializes drm_device display related structures, based on the information 100 * provided by DAL. The drm strcutures are: drm_crtc, drm_connector, 101 * drm_encoder, drm_mode_config 102 * 103 * Returns 0 on success 104 */ 105 static int amdgpu_dm_initialize_drm_device(struct amdgpu_device *adev); 106 /* removes and deallocates the drm structures, created by the above function */ 107 static void amdgpu_dm_destroy_drm_device(struct amdgpu_display_manager *dm); 108 109 static void 110 amdgpu_dm_update_connector_after_detect(struct amdgpu_dm_connector *aconnector); 111 112 static int amdgpu_dm_plane_init(struct amdgpu_display_manager *dm, 113 struct drm_plane *plane, 114 unsigned long possible_crtcs); 115 static int amdgpu_dm_crtc_init(struct amdgpu_display_manager *dm, 116 struct drm_plane *plane, 117 uint32_t link_index); 118 static int amdgpu_dm_connector_init(struct amdgpu_display_manager *dm, 119 struct amdgpu_dm_connector *amdgpu_dm_connector, 120 uint32_t link_index, 121 struct amdgpu_encoder *amdgpu_encoder); 122 static int amdgpu_dm_encoder_init(struct drm_device *dev, 123 struct amdgpu_encoder *aencoder, 124 uint32_t link_index); 125 126 static int amdgpu_dm_connector_get_modes(struct drm_connector *connector); 127 128 static int amdgpu_dm_atomic_commit(struct drm_device *dev, 129 struct drm_atomic_state *state, 130 bool nonblock); 131 132 static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state); 133 134 static int amdgpu_dm_atomic_check(struct drm_device *dev, 135 struct drm_atomic_state *state); 136 137 static void handle_cursor_update(struct drm_plane *plane, 138 struct drm_plane_state *old_plane_state); 139 140 141 142 static const enum drm_plane_type dm_plane_type_default[AMDGPU_MAX_PLANES] = { 143 DRM_PLANE_TYPE_PRIMARY, 144 DRM_PLANE_TYPE_PRIMARY, 145 DRM_PLANE_TYPE_PRIMARY, 146 DRM_PLANE_TYPE_PRIMARY, 147 DRM_PLANE_TYPE_PRIMARY, 148 DRM_PLANE_TYPE_PRIMARY, 149 }; 150 151 static const enum drm_plane_type dm_plane_type_carizzo[AMDGPU_MAX_PLANES] = { 152 DRM_PLANE_TYPE_PRIMARY, 153 DRM_PLANE_TYPE_PRIMARY, 154 DRM_PLANE_TYPE_PRIMARY, 155 DRM_PLANE_TYPE_OVERLAY,/* YUV Capable Underlay */ 156 }; 157 158 static const enum drm_plane_type dm_plane_type_stoney[AMDGPU_MAX_PLANES] = { 159 DRM_PLANE_TYPE_PRIMARY, 160 DRM_PLANE_TYPE_PRIMARY, 161 DRM_PLANE_TYPE_OVERLAY, /* YUV Capable Underlay */ 162 }; 163 164 /* 165 * dm_vblank_get_counter 166 * 167 * @brief 168 * Get counter for number of vertical blanks 169 * 170 * @param 171 * struct amdgpu_device *adev - [in] desired amdgpu device 172 * int disp_idx - [in] which CRTC to get the counter from 173 * 174 * @return 175 * Counter for vertical blanks 176 */ 177 static u32 dm_vblank_get_counter(struct amdgpu_device *adev, int crtc) 178 { 179 if (crtc >= adev->mode_info.num_crtc) 180 return 0; 181 else { 182 struct amdgpu_crtc *acrtc = adev->mode_info.crtcs[crtc]; 183 struct dm_crtc_state *acrtc_state = to_dm_crtc_state( 184 acrtc->base.state); 185 186 187 if (acrtc_state->stream == NULL) { 188 DRM_ERROR("dc_stream_state is NULL for crtc '%d'!\n", 189 crtc); 190 return 0; 191 } 192 193 return dc_stream_get_vblank_counter(acrtc_state->stream); 194 } 195 } 196 197 static int dm_crtc_get_scanoutpos(struct amdgpu_device *adev, int crtc, 198 u32 *vbl, u32 *position) 199 { 200 uint32_t v_blank_start, v_blank_end, h_position, v_position; 201 202 if ((crtc < 0) || (crtc >= adev->mode_info.num_crtc)) 203 return -EINVAL; 204 else { 205 struct amdgpu_crtc *acrtc = adev->mode_info.crtcs[crtc]; 206 struct dm_crtc_state *acrtc_state = to_dm_crtc_state( 207 acrtc->base.state); 208 209 if (acrtc_state->stream == NULL) { 210 DRM_ERROR("dc_stream_state is NULL for crtc '%d'!\n", 211 crtc); 212 return 0; 213 } 214 215 /* 216 * TODO rework base driver to use values directly. 217 * for now parse it back into reg-format 218 */ 219 dc_stream_get_scanoutpos(acrtc_state->stream, 220 &v_blank_start, 221 &v_blank_end, 222 &h_position, 223 &v_position); 224 225 *position = v_position | (h_position << 16); 226 *vbl = v_blank_start | (v_blank_end << 16); 227 } 228 229 return 0; 230 } 231 232 static bool dm_is_idle(void *handle) 233 { 234 /* XXX todo */ 235 return true; 236 } 237 238 static int dm_wait_for_idle(void *handle) 239 { 240 /* XXX todo */ 241 return 0; 242 } 243 244 static bool dm_check_soft_reset(void *handle) 245 { 246 return false; 247 } 248 249 static int dm_soft_reset(void *handle) 250 { 251 /* XXX todo */ 252 return 0; 253 } 254 255 static struct amdgpu_crtc * 256 get_crtc_by_otg_inst(struct amdgpu_device *adev, 257 int otg_inst) 258 { 259 struct drm_device *dev = adev->ddev; 260 struct drm_crtc *crtc; 261 struct amdgpu_crtc *amdgpu_crtc; 262 263 if (otg_inst == -1) { 264 WARN_ON(1); 265 return adev->mode_info.crtcs[0]; 266 } 267 268 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 269 amdgpu_crtc = to_amdgpu_crtc(crtc); 270 271 if (amdgpu_crtc->otg_inst == otg_inst) 272 return amdgpu_crtc; 273 } 274 275 return NULL; 276 } 277 278 static void dm_pflip_high_irq(void *interrupt_params) 279 { 280 struct amdgpu_crtc *amdgpu_crtc; 281 struct common_irq_params *irq_params = interrupt_params; 282 struct amdgpu_device *adev = irq_params->adev; 283 unsigned long flags; 284 285 amdgpu_crtc = get_crtc_by_otg_inst(adev, irq_params->irq_src - IRQ_TYPE_PFLIP); 286 287 /* IRQ could occur when in initial stage */ 288 /* TODO work and BO cleanup */ 289 if (amdgpu_crtc == NULL) { 290 DRM_DEBUG_DRIVER("CRTC is null, returning.\n"); 291 return; 292 } 293 294 spin_lock_irqsave(&adev->ddev->event_lock, flags); 295 296 if (amdgpu_crtc->pflip_status != AMDGPU_FLIP_SUBMITTED){ 297 DRM_DEBUG_DRIVER("amdgpu_crtc->pflip_status = %d !=AMDGPU_FLIP_SUBMITTED(%d) on crtc:%d[%p] \n", 298 amdgpu_crtc->pflip_status, 299 AMDGPU_FLIP_SUBMITTED, 300 amdgpu_crtc->crtc_id, 301 amdgpu_crtc); 302 spin_unlock_irqrestore(&adev->ddev->event_lock, flags); 303 return; 304 } 305 306 307 /* wake up userspace */ 308 if (amdgpu_crtc->event) { 309 /* Update to correct count(s) if racing with vblank irq */ 310 drm_crtc_accurate_vblank_count(&amdgpu_crtc->base); 311 312 drm_crtc_send_vblank_event(&amdgpu_crtc->base, amdgpu_crtc->event); 313 314 /* page flip completed. clean up */ 315 amdgpu_crtc->event = NULL; 316 317 } else 318 WARN_ON(1); 319 320 amdgpu_crtc->pflip_status = AMDGPU_FLIP_NONE; 321 spin_unlock_irqrestore(&adev->ddev->event_lock, flags); 322 323 DRM_DEBUG_DRIVER("%s - crtc :%d[%p], pflip_stat:AMDGPU_FLIP_NONE\n", 324 __func__, amdgpu_crtc->crtc_id, amdgpu_crtc); 325 326 drm_crtc_vblank_put(&amdgpu_crtc->base); 327 } 328 329 static void dm_crtc_high_irq(void *interrupt_params) 330 { 331 struct common_irq_params *irq_params = interrupt_params; 332 struct amdgpu_device *adev = irq_params->adev; 333 struct amdgpu_crtc *acrtc; 334 struct dm_crtc_state *acrtc_state; 335 336 acrtc = get_crtc_by_otg_inst(adev, irq_params->irq_src - IRQ_TYPE_VBLANK); 337 338 if (acrtc) { 339 drm_crtc_handle_vblank(&acrtc->base); 340 amdgpu_dm_crtc_handle_crc_irq(&acrtc->base); 341 342 acrtc_state = to_dm_crtc_state(acrtc->base.state); 343 344 if (acrtc_state->stream && 345 acrtc_state->vrr_params.supported && 346 acrtc_state->freesync_config.state == VRR_STATE_ACTIVE_VARIABLE) { 347 mod_freesync_handle_v_update( 348 adev->dm.freesync_module, 349 acrtc_state->stream, 350 &acrtc_state->vrr_params); 351 352 dc_stream_adjust_vmin_vmax( 353 adev->dm.dc, 354 acrtc_state->stream, 355 &acrtc_state->vrr_params.adjust); 356 } 357 } 358 } 359 360 static int dm_set_clockgating_state(void *handle, 361 enum amd_clockgating_state state) 362 { 363 return 0; 364 } 365 366 static int dm_set_powergating_state(void *handle, 367 enum amd_powergating_state state) 368 { 369 return 0; 370 } 371 372 /* Prototypes of private functions */ 373 static int dm_early_init(void* handle); 374 375 /* Allocate memory for FBC compressed data */ 376 static void amdgpu_dm_fbc_init(struct drm_connector *connector) 377 { 378 struct drm_device *dev = connector->dev; 379 struct amdgpu_device *adev = dev->dev_private; 380 struct dm_comressor_info *compressor = &adev->dm.compressor; 381 struct amdgpu_dm_connector *aconn = to_amdgpu_dm_connector(connector); 382 struct drm_display_mode *mode; 383 unsigned long max_size = 0; 384 385 if (adev->dm.dc->fbc_compressor == NULL) 386 return; 387 388 if (aconn->dc_link->connector_signal != SIGNAL_TYPE_EDP) 389 return; 390 391 if (compressor->bo_ptr) 392 return; 393 394 395 list_for_each_entry(mode, &connector->modes, head) { 396 if (max_size < mode->htotal * mode->vtotal) 397 max_size = mode->htotal * mode->vtotal; 398 } 399 400 if (max_size) { 401 int r = amdgpu_bo_create_kernel(adev, max_size * 4, PAGE_SIZE, 402 AMDGPU_GEM_DOMAIN_GTT, &compressor->bo_ptr, 403 &compressor->gpu_addr, &compressor->cpu_addr); 404 405 if (r) 406 DRM_ERROR("DM: Failed to initialize FBC\n"); 407 else { 408 adev->dm.dc->ctx->fbc_gpu_addr = compressor->gpu_addr; 409 DRM_INFO("DM: FBC alloc %lu\n", max_size*4); 410 } 411 412 } 413 414 } 415 416 static int amdgpu_dm_init(struct amdgpu_device *adev) 417 { 418 struct dc_init_data init_data; 419 adev->dm.ddev = adev->ddev; 420 adev->dm.adev = adev; 421 422 /* Zero all the fields */ 423 memset(&init_data, 0, sizeof(init_data)); 424 425 mutex_init(&adev->dm.dc_lock); 426 427 if(amdgpu_dm_irq_init(adev)) { 428 DRM_ERROR("amdgpu: failed to initialize DM IRQ support.\n"); 429 goto error; 430 } 431 432 init_data.asic_id.chip_family = adev->family; 433 434 init_data.asic_id.pci_revision_id = adev->rev_id; 435 init_data.asic_id.hw_internal_rev = adev->external_rev_id; 436 437 init_data.asic_id.vram_width = adev->gmc.vram_width; 438 /* TODO: initialize init_data.asic_id.vram_type here!!!! */ 439 init_data.asic_id.atombios_base_address = 440 adev->mode_info.atom_context->bios; 441 442 init_data.driver = adev; 443 444 adev->dm.cgs_device = amdgpu_cgs_create_device(adev); 445 446 if (!adev->dm.cgs_device) { 447 DRM_ERROR("amdgpu: failed to create cgs device.\n"); 448 goto error; 449 } 450 451 init_data.cgs_device = adev->dm.cgs_device; 452 453 init_data.dce_environment = DCE_ENV_PRODUCTION_DRV; 454 455 /* 456 * TODO debug why this doesn't work on Raven 457 */ 458 if (adev->flags & AMD_IS_APU && 459 adev->asic_type >= CHIP_CARRIZO && 460 adev->asic_type < CHIP_RAVEN) 461 init_data.flags.gpu_vm_support = true; 462 463 if (amdgpu_dc_feature_mask & DC_FBC_MASK) 464 init_data.flags.fbc_support = true; 465 466 /* Display Core create. */ 467 adev->dm.dc = dc_create(&init_data); 468 469 if (adev->dm.dc) { 470 DRM_INFO("Display Core initialized with v%s!\n", DC_VER); 471 } else { 472 DRM_INFO("Display Core failed to initialize with v%s!\n", DC_VER); 473 goto error; 474 } 475 476 adev->dm.freesync_module = mod_freesync_create(adev->dm.dc); 477 if (!adev->dm.freesync_module) { 478 DRM_ERROR( 479 "amdgpu: failed to initialize freesync_module.\n"); 480 } else 481 DRM_DEBUG_DRIVER("amdgpu: freesync_module init done %p.\n", 482 adev->dm.freesync_module); 483 484 amdgpu_dm_init_color_mod(); 485 486 if (amdgpu_dm_initialize_drm_device(adev)) { 487 DRM_ERROR( 488 "amdgpu: failed to initialize sw for display support.\n"); 489 goto error; 490 } 491 492 /* Update the actual used number of crtc */ 493 adev->mode_info.num_crtc = adev->dm.display_indexes_num; 494 495 /* TODO: Add_display_info? */ 496 497 /* TODO use dynamic cursor width */ 498 adev->ddev->mode_config.cursor_width = adev->dm.dc->caps.max_cursor_size; 499 adev->ddev->mode_config.cursor_height = adev->dm.dc->caps.max_cursor_size; 500 501 if (drm_vblank_init(adev->ddev, adev->dm.display_indexes_num)) { 502 DRM_ERROR( 503 "amdgpu: failed to initialize sw for display support.\n"); 504 goto error; 505 } 506 507 #if defined(CONFIG_DEBUG_FS) 508 if (dtn_debugfs_init(adev)) 509 DRM_ERROR("amdgpu: failed initialize dtn debugfs support.\n"); 510 #endif 511 512 DRM_DEBUG_DRIVER("KMS initialized.\n"); 513 514 return 0; 515 error: 516 amdgpu_dm_fini(adev); 517 518 return -EINVAL; 519 } 520 521 static void amdgpu_dm_fini(struct amdgpu_device *adev) 522 { 523 amdgpu_dm_destroy_drm_device(&adev->dm); 524 /* 525 * TODO: pageflip, vlank interrupt 526 * 527 * amdgpu_dm_irq_fini(adev); 528 */ 529 530 if (adev->dm.cgs_device) { 531 amdgpu_cgs_destroy_device(adev->dm.cgs_device); 532 adev->dm.cgs_device = NULL; 533 } 534 if (adev->dm.freesync_module) { 535 mod_freesync_destroy(adev->dm.freesync_module); 536 adev->dm.freesync_module = NULL; 537 } 538 /* DC Destroy TODO: Replace destroy DAL */ 539 if (adev->dm.dc) 540 dc_destroy(&adev->dm.dc); 541 542 mutex_destroy(&adev->dm.dc_lock); 543 544 return; 545 } 546 547 static int load_dmcu_fw(struct amdgpu_device *adev) 548 { 549 const char *fw_name_dmcu; 550 int r; 551 const struct dmcu_firmware_header_v1_0 *hdr; 552 553 switch(adev->asic_type) { 554 case CHIP_BONAIRE: 555 case CHIP_HAWAII: 556 case CHIP_KAVERI: 557 case CHIP_KABINI: 558 case CHIP_MULLINS: 559 case CHIP_TONGA: 560 case CHIP_FIJI: 561 case CHIP_CARRIZO: 562 case CHIP_STONEY: 563 case CHIP_POLARIS11: 564 case CHIP_POLARIS10: 565 case CHIP_POLARIS12: 566 case CHIP_VEGAM: 567 case CHIP_VEGA10: 568 case CHIP_VEGA12: 569 case CHIP_VEGA20: 570 return 0; 571 case CHIP_RAVEN: 572 fw_name_dmcu = FIRMWARE_RAVEN_DMCU; 573 break; 574 default: 575 DRM_ERROR("Unsupported ASIC type: 0x%X\n", adev->asic_type); 576 return -EINVAL; 577 } 578 579 if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP) { 580 DRM_DEBUG_KMS("dm: DMCU firmware not supported on direct or SMU loading\n"); 581 return 0; 582 } 583 584 r = request_firmware_direct(&adev->dm.fw_dmcu, fw_name_dmcu, adev->dev); 585 if (r == -ENOENT) { 586 /* DMCU firmware is not necessary, so don't raise a fuss if it's missing */ 587 DRM_DEBUG_KMS("dm: DMCU firmware not found\n"); 588 adev->dm.fw_dmcu = NULL; 589 return 0; 590 } 591 if (r) { 592 dev_err(adev->dev, "amdgpu_dm: Can't load firmware \"%s\"\n", 593 fw_name_dmcu); 594 return r; 595 } 596 597 r = amdgpu_ucode_validate(adev->dm.fw_dmcu); 598 if (r) { 599 dev_err(adev->dev, "amdgpu_dm: Can't validate firmware \"%s\"\n", 600 fw_name_dmcu); 601 release_firmware(adev->dm.fw_dmcu); 602 adev->dm.fw_dmcu = NULL; 603 return r; 604 } 605 606 hdr = (const struct dmcu_firmware_header_v1_0 *)adev->dm.fw_dmcu->data; 607 adev->firmware.ucode[AMDGPU_UCODE_ID_DMCU_ERAM].ucode_id = AMDGPU_UCODE_ID_DMCU_ERAM; 608 adev->firmware.ucode[AMDGPU_UCODE_ID_DMCU_ERAM].fw = adev->dm.fw_dmcu; 609 adev->firmware.fw_size += 610 ALIGN(le32_to_cpu(hdr->header.ucode_size_bytes) - le32_to_cpu(hdr->intv_size_bytes), PAGE_SIZE); 611 612 adev->firmware.ucode[AMDGPU_UCODE_ID_DMCU_INTV].ucode_id = AMDGPU_UCODE_ID_DMCU_INTV; 613 adev->firmware.ucode[AMDGPU_UCODE_ID_DMCU_INTV].fw = adev->dm.fw_dmcu; 614 adev->firmware.fw_size += 615 ALIGN(le32_to_cpu(hdr->intv_size_bytes), PAGE_SIZE); 616 617 adev->dm.dmcu_fw_version = le32_to_cpu(hdr->header.ucode_version); 618 619 DRM_DEBUG_KMS("PSP loading DMCU firmware\n"); 620 621 return 0; 622 } 623 624 static int dm_sw_init(void *handle) 625 { 626 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 627 628 return load_dmcu_fw(adev); 629 } 630 631 static int dm_sw_fini(void *handle) 632 { 633 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 634 635 if(adev->dm.fw_dmcu) { 636 release_firmware(adev->dm.fw_dmcu); 637 adev->dm.fw_dmcu = NULL; 638 } 639 640 return 0; 641 } 642 643 static int detect_mst_link_for_all_connectors(struct drm_device *dev) 644 { 645 struct amdgpu_dm_connector *aconnector; 646 struct drm_connector *connector; 647 int ret = 0; 648 649 drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); 650 651 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 652 aconnector = to_amdgpu_dm_connector(connector); 653 if (aconnector->dc_link->type == dc_connection_mst_branch && 654 aconnector->mst_mgr.aux) { 655 DRM_DEBUG_DRIVER("DM_MST: starting TM on aconnector: %p [id: %d]\n", 656 aconnector, aconnector->base.base.id); 657 658 ret = drm_dp_mst_topology_mgr_set_mst(&aconnector->mst_mgr, true); 659 if (ret < 0) { 660 DRM_ERROR("DM_MST: Failed to start MST\n"); 661 ((struct dc_link *)aconnector->dc_link)->type = dc_connection_single; 662 return ret; 663 } 664 } 665 } 666 667 drm_modeset_unlock(&dev->mode_config.connection_mutex); 668 return ret; 669 } 670 671 static int dm_late_init(void *handle) 672 { 673 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 674 675 struct dmcu_iram_parameters params; 676 unsigned int linear_lut[16]; 677 int i; 678 struct dmcu *dmcu = adev->dm.dc->res_pool->dmcu; 679 bool ret; 680 681 for (i = 0; i < 16; i++) 682 linear_lut[i] = 0xFFFF * i / 15; 683 684 params.set = 0; 685 params.backlight_ramping_start = 0xCCCC; 686 params.backlight_ramping_reduction = 0xCCCCCCCC; 687 params.backlight_lut_array_size = 16; 688 params.backlight_lut_array = linear_lut; 689 690 ret = dmcu_load_iram(dmcu, params); 691 692 if (!ret) 693 return -EINVAL; 694 695 return detect_mst_link_for_all_connectors(adev->ddev); 696 } 697 698 static void s3_handle_mst(struct drm_device *dev, bool suspend) 699 { 700 struct amdgpu_dm_connector *aconnector; 701 struct drm_connector *connector; 702 struct drm_dp_mst_topology_mgr *mgr; 703 int ret; 704 bool need_hotplug = false; 705 706 drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); 707 708 list_for_each_entry(connector, &dev->mode_config.connector_list, 709 head) { 710 aconnector = to_amdgpu_dm_connector(connector); 711 if (aconnector->dc_link->type != dc_connection_mst_branch || 712 aconnector->mst_port) 713 continue; 714 715 mgr = &aconnector->mst_mgr; 716 717 if (suspend) { 718 drm_dp_mst_topology_mgr_suspend(mgr); 719 } else { 720 ret = drm_dp_mst_topology_mgr_resume(mgr); 721 if (ret < 0) { 722 drm_dp_mst_topology_mgr_set_mst(mgr, false); 723 need_hotplug = true; 724 } 725 } 726 } 727 728 drm_modeset_unlock(&dev->mode_config.connection_mutex); 729 730 if (need_hotplug) 731 drm_kms_helper_hotplug_event(dev); 732 } 733 734 /** 735 * dm_hw_init() - Initialize DC device 736 * @handle: The base driver device containing the amdpgu_dm device. 737 * 738 * Initialize the &struct amdgpu_display_manager device. This involves calling 739 * the initializers of each DM component, then populating the struct with them. 740 * 741 * Although the function implies hardware initialization, both hardware and 742 * software are initialized here. Splitting them out to their relevant init 743 * hooks is a future TODO item. 744 * 745 * Some notable things that are initialized here: 746 * 747 * - Display Core, both software and hardware 748 * - DC modules that we need (freesync and color management) 749 * - DRM software states 750 * - Interrupt sources and handlers 751 * - Vblank support 752 * - Debug FS entries, if enabled 753 */ 754 static int dm_hw_init(void *handle) 755 { 756 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 757 /* Create DAL display manager */ 758 amdgpu_dm_init(adev); 759 amdgpu_dm_hpd_init(adev); 760 761 return 0; 762 } 763 764 /** 765 * dm_hw_fini() - Teardown DC device 766 * @handle: The base driver device containing the amdpgu_dm device. 767 * 768 * Teardown components within &struct amdgpu_display_manager that require 769 * cleanup. This involves cleaning up the DRM device, DC, and any modules that 770 * were loaded. Also flush IRQ workqueues and disable them. 771 */ 772 static int dm_hw_fini(void *handle) 773 { 774 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 775 776 amdgpu_dm_hpd_fini(adev); 777 778 amdgpu_dm_irq_fini(adev); 779 amdgpu_dm_fini(adev); 780 return 0; 781 } 782 783 static int dm_suspend(void *handle) 784 { 785 struct amdgpu_device *adev = handle; 786 struct amdgpu_display_manager *dm = &adev->dm; 787 int ret = 0; 788 789 s3_handle_mst(adev->ddev, true); 790 791 amdgpu_dm_irq_suspend(adev); 792 793 WARN_ON(adev->dm.cached_state); 794 adev->dm.cached_state = drm_atomic_helper_suspend(adev->ddev); 795 796 dc_set_power_state(dm->dc, DC_ACPI_CM_POWER_STATE_D3); 797 798 return ret; 799 } 800 801 static struct amdgpu_dm_connector * 802 amdgpu_dm_find_first_crtc_matching_connector(struct drm_atomic_state *state, 803 struct drm_crtc *crtc) 804 { 805 uint32_t i; 806 struct drm_connector_state *new_con_state; 807 struct drm_connector *connector; 808 struct drm_crtc *crtc_from_state; 809 810 for_each_new_connector_in_state(state, connector, new_con_state, i) { 811 crtc_from_state = new_con_state->crtc; 812 813 if (crtc_from_state == crtc) 814 return to_amdgpu_dm_connector(connector); 815 } 816 817 return NULL; 818 } 819 820 static void emulated_link_detect(struct dc_link *link) 821 { 822 struct dc_sink_init_data sink_init_data = { 0 }; 823 struct display_sink_capability sink_caps = { 0 }; 824 enum dc_edid_status edid_status; 825 struct dc_context *dc_ctx = link->ctx; 826 struct dc_sink *sink = NULL; 827 struct dc_sink *prev_sink = NULL; 828 829 link->type = dc_connection_none; 830 prev_sink = link->local_sink; 831 832 if (prev_sink != NULL) 833 dc_sink_retain(prev_sink); 834 835 switch (link->connector_signal) { 836 case SIGNAL_TYPE_HDMI_TYPE_A: { 837 sink_caps.transaction_type = DDC_TRANSACTION_TYPE_I2C; 838 sink_caps.signal = SIGNAL_TYPE_HDMI_TYPE_A; 839 break; 840 } 841 842 case SIGNAL_TYPE_DVI_SINGLE_LINK: { 843 sink_caps.transaction_type = DDC_TRANSACTION_TYPE_I2C; 844 sink_caps.signal = SIGNAL_TYPE_DVI_SINGLE_LINK; 845 break; 846 } 847 848 case SIGNAL_TYPE_DVI_DUAL_LINK: { 849 sink_caps.transaction_type = DDC_TRANSACTION_TYPE_I2C; 850 sink_caps.signal = SIGNAL_TYPE_DVI_DUAL_LINK; 851 break; 852 } 853 854 case SIGNAL_TYPE_LVDS: { 855 sink_caps.transaction_type = DDC_TRANSACTION_TYPE_I2C; 856 sink_caps.signal = SIGNAL_TYPE_LVDS; 857 break; 858 } 859 860 case SIGNAL_TYPE_EDP: { 861 sink_caps.transaction_type = 862 DDC_TRANSACTION_TYPE_I2C_OVER_AUX; 863 sink_caps.signal = SIGNAL_TYPE_EDP; 864 break; 865 } 866 867 case SIGNAL_TYPE_DISPLAY_PORT: { 868 sink_caps.transaction_type = 869 DDC_TRANSACTION_TYPE_I2C_OVER_AUX; 870 sink_caps.signal = SIGNAL_TYPE_VIRTUAL; 871 break; 872 } 873 874 default: 875 DC_ERROR("Invalid connector type! signal:%d\n", 876 link->connector_signal); 877 return; 878 } 879 880 sink_init_data.link = link; 881 sink_init_data.sink_signal = sink_caps.signal; 882 883 sink = dc_sink_create(&sink_init_data); 884 if (!sink) { 885 DC_ERROR("Failed to create sink!\n"); 886 return; 887 } 888 889 link->local_sink = sink; 890 891 edid_status = dm_helpers_read_local_edid( 892 link->ctx, 893 link, 894 sink); 895 896 if (edid_status != EDID_OK) 897 DC_ERROR("Failed to read EDID"); 898 899 } 900 901 static int dm_resume(void *handle) 902 { 903 struct amdgpu_device *adev = handle; 904 struct drm_device *ddev = adev->ddev; 905 struct amdgpu_display_manager *dm = &adev->dm; 906 struct amdgpu_dm_connector *aconnector; 907 struct drm_connector *connector; 908 struct drm_crtc *crtc; 909 struct drm_crtc_state *new_crtc_state; 910 struct dm_crtc_state *dm_new_crtc_state; 911 struct drm_plane *plane; 912 struct drm_plane_state *new_plane_state; 913 struct dm_plane_state *dm_new_plane_state; 914 enum dc_connection_type new_connection_type = dc_connection_none; 915 int i; 916 917 /* power on hardware */ 918 dc_set_power_state(dm->dc, DC_ACPI_CM_POWER_STATE_D0); 919 920 /* program HPD filter */ 921 dc_resume(dm->dc); 922 923 /* On resume we need to rewrite the MSTM control bits to enamble MST*/ 924 s3_handle_mst(ddev, false); 925 926 /* 927 * early enable HPD Rx IRQ, should be done before set mode as short 928 * pulse interrupts are used for MST 929 */ 930 amdgpu_dm_irq_resume_early(adev); 931 932 /* Do detection*/ 933 list_for_each_entry(connector, &ddev->mode_config.connector_list, head) { 934 aconnector = to_amdgpu_dm_connector(connector); 935 936 /* 937 * this is the case when traversing through already created 938 * MST connectors, should be skipped 939 */ 940 if (aconnector->mst_port) 941 continue; 942 943 mutex_lock(&aconnector->hpd_lock); 944 if (!dc_link_detect_sink(aconnector->dc_link, &new_connection_type)) 945 DRM_ERROR("KMS: Failed to detect connector\n"); 946 947 if (aconnector->base.force && new_connection_type == dc_connection_none) 948 emulated_link_detect(aconnector->dc_link); 949 else 950 dc_link_detect(aconnector->dc_link, DETECT_REASON_HPD); 951 952 if (aconnector->fake_enable && aconnector->dc_link->local_sink) 953 aconnector->fake_enable = false; 954 955 aconnector->dc_sink = NULL; 956 amdgpu_dm_update_connector_after_detect(aconnector); 957 mutex_unlock(&aconnector->hpd_lock); 958 } 959 960 /* Force mode set in atomic commit */ 961 for_each_new_crtc_in_state(dm->cached_state, crtc, new_crtc_state, i) 962 new_crtc_state->active_changed = true; 963 964 /* 965 * atomic_check is expected to create the dc states. We need to release 966 * them here, since they were duplicated as part of the suspend 967 * procedure. 968 */ 969 for_each_new_crtc_in_state(dm->cached_state, crtc, new_crtc_state, i) { 970 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); 971 if (dm_new_crtc_state->stream) { 972 WARN_ON(kref_read(&dm_new_crtc_state->stream->refcount) > 1); 973 dc_stream_release(dm_new_crtc_state->stream); 974 dm_new_crtc_state->stream = NULL; 975 } 976 } 977 978 for_each_new_plane_in_state(dm->cached_state, plane, new_plane_state, i) { 979 dm_new_plane_state = to_dm_plane_state(new_plane_state); 980 if (dm_new_plane_state->dc_state) { 981 WARN_ON(kref_read(&dm_new_plane_state->dc_state->refcount) > 1); 982 dc_plane_state_release(dm_new_plane_state->dc_state); 983 dm_new_plane_state->dc_state = NULL; 984 } 985 } 986 987 drm_atomic_helper_resume(ddev, dm->cached_state); 988 989 dm->cached_state = NULL; 990 991 amdgpu_dm_irq_resume_late(adev); 992 993 return 0; 994 } 995 996 /** 997 * DOC: DM Lifecycle 998 * 999 * DM (and consequently DC) is registered in the amdgpu base driver as a IP 1000 * block. When CONFIG_DRM_AMD_DC is enabled, the DM device IP block is added to 1001 * the base driver's device list to be initialized and torn down accordingly. 1002 * 1003 * The functions to do so are provided as hooks in &struct amd_ip_funcs. 1004 */ 1005 1006 static const struct amd_ip_funcs amdgpu_dm_funcs = { 1007 .name = "dm", 1008 .early_init = dm_early_init, 1009 .late_init = dm_late_init, 1010 .sw_init = dm_sw_init, 1011 .sw_fini = dm_sw_fini, 1012 .hw_init = dm_hw_init, 1013 .hw_fini = dm_hw_fini, 1014 .suspend = dm_suspend, 1015 .resume = dm_resume, 1016 .is_idle = dm_is_idle, 1017 .wait_for_idle = dm_wait_for_idle, 1018 .check_soft_reset = dm_check_soft_reset, 1019 .soft_reset = dm_soft_reset, 1020 .set_clockgating_state = dm_set_clockgating_state, 1021 .set_powergating_state = dm_set_powergating_state, 1022 }; 1023 1024 const struct amdgpu_ip_block_version dm_ip_block = 1025 { 1026 .type = AMD_IP_BLOCK_TYPE_DCE, 1027 .major = 1, 1028 .minor = 0, 1029 .rev = 0, 1030 .funcs = &amdgpu_dm_funcs, 1031 }; 1032 1033 1034 /** 1035 * DOC: atomic 1036 * 1037 * *WIP* 1038 */ 1039 1040 static const struct drm_mode_config_funcs amdgpu_dm_mode_funcs = { 1041 .fb_create = amdgpu_display_user_framebuffer_create, 1042 .output_poll_changed = drm_fb_helper_output_poll_changed, 1043 .atomic_check = amdgpu_dm_atomic_check, 1044 .atomic_commit = amdgpu_dm_atomic_commit, 1045 }; 1046 1047 static struct drm_mode_config_helper_funcs amdgpu_dm_mode_config_helperfuncs = { 1048 .atomic_commit_tail = amdgpu_dm_atomic_commit_tail 1049 }; 1050 1051 static void 1052 amdgpu_dm_update_connector_after_detect(struct amdgpu_dm_connector *aconnector) 1053 { 1054 struct drm_connector *connector = &aconnector->base; 1055 struct drm_device *dev = connector->dev; 1056 struct dc_sink *sink; 1057 1058 /* MST handled by drm_mst framework */ 1059 if (aconnector->mst_mgr.mst_state == true) 1060 return; 1061 1062 1063 sink = aconnector->dc_link->local_sink; 1064 1065 /* 1066 * Edid mgmt connector gets first update only in mode_valid hook and then 1067 * the connector sink is set to either fake or physical sink depends on link status. 1068 * Skip if already done during boot. 1069 */ 1070 if (aconnector->base.force != DRM_FORCE_UNSPECIFIED 1071 && aconnector->dc_em_sink) { 1072 1073 /* 1074 * For S3 resume with headless use eml_sink to fake stream 1075 * because on resume connector->sink is set to NULL 1076 */ 1077 mutex_lock(&dev->mode_config.mutex); 1078 1079 if (sink) { 1080 if (aconnector->dc_sink) { 1081 amdgpu_dm_update_freesync_caps(connector, NULL); 1082 /* 1083 * retain and release below are used to 1084 * bump up refcount for sink because the link doesn't point 1085 * to it anymore after disconnect, so on next crtc to connector 1086 * reshuffle by UMD we will get into unwanted dc_sink release 1087 */ 1088 if (aconnector->dc_sink != aconnector->dc_em_sink) 1089 dc_sink_release(aconnector->dc_sink); 1090 } 1091 aconnector->dc_sink = sink; 1092 amdgpu_dm_update_freesync_caps(connector, 1093 aconnector->edid); 1094 } else { 1095 amdgpu_dm_update_freesync_caps(connector, NULL); 1096 if (!aconnector->dc_sink) 1097 aconnector->dc_sink = aconnector->dc_em_sink; 1098 else if (aconnector->dc_sink != aconnector->dc_em_sink) 1099 dc_sink_retain(aconnector->dc_sink); 1100 } 1101 1102 mutex_unlock(&dev->mode_config.mutex); 1103 return; 1104 } 1105 1106 /* 1107 * TODO: temporary guard to look for proper fix 1108 * if this sink is MST sink, we should not do anything 1109 */ 1110 if (sink && sink->sink_signal == SIGNAL_TYPE_DISPLAY_PORT_MST) 1111 return; 1112 1113 if (aconnector->dc_sink == sink) { 1114 /* 1115 * We got a DP short pulse (Link Loss, DP CTS, etc...). 1116 * Do nothing!! 1117 */ 1118 DRM_DEBUG_DRIVER("DCHPD: connector_id=%d: dc_sink didn't change.\n", 1119 aconnector->connector_id); 1120 return; 1121 } 1122 1123 DRM_DEBUG_DRIVER("DCHPD: connector_id=%d: Old sink=%p New sink=%p\n", 1124 aconnector->connector_id, aconnector->dc_sink, sink); 1125 1126 mutex_lock(&dev->mode_config.mutex); 1127 1128 /* 1129 * 1. Update status of the drm connector 1130 * 2. Send an event and let userspace tell us what to do 1131 */ 1132 if (sink) { 1133 /* 1134 * TODO: check if we still need the S3 mode update workaround. 1135 * If yes, put it here. 1136 */ 1137 if (aconnector->dc_sink) 1138 amdgpu_dm_update_freesync_caps(connector, NULL); 1139 1140 aconnector->dc_sink = sink; 1141 if (sink->dc_edid.length == 0) { 1142 aconnector->edid = NULL; 1143 drm_dp_cec_unset_edid(&aconnector->dm_dp_aux.aux); 1144 } else { 1145 aconnector->edid = 1146 (struct edid *) sink->dc_edid.raw_edid; 1147 1148 1149 drm_connector_update_edid_property(connector, 1150 aconnector->edid); 1151 drm_dp_cec_set_edid(&aconnector->dm_dp_aux.aux, 1152 aconnector->edid); 1153 } 1154 amdgpu_dm_update_freesync_caps(connector, aconnector->edid); 1155 1156 } else { 1157 drm_dp_cec_unset_edid(&aconnector->dm_dp_aux.aux); 1158 amdgpu_dm_update_freesync_caps(connector, NULL); 1159 drm_connector_update_edid_property(connector, NULL); 1160 aconnector->num_modes = 0; 1161 aconnector->dc_sink = NULL; 1162 aconnector->edid = NULL; 1163 } 1164 1165 mutex_unlock(&dev->mode_config.mutex); 1166 } 1167 1168 static void handle_hpd_irq(void *param) 1169 { 1170 struct amdgpu_dm_connector *aconnector = (struct amdgpu_dm_connector *)param; 1171 struct drm_connector *connector = &aconnector->base; 1172 struct drm_device *dev = connector->dev; 1173 enum dc_connection_type new_connection_type = dc_connection_none; 1174 1175 /* 1176 * In case of failure or MST no need to update connector status or notify the OS 1177 * since (for MST case) MST does this in its own context. 1178 */ 1179 mutex_lock(&aconnector->hpd_lock); 1180 1181 if (aconnector->fake_enable) 1182 aconnector->fake_enable = false; 1183 1184 if (!dc_link_detect_sink(aconnector->dc_link, &new_connection_type)) 1185 DRM_ERROR("KMS: Failed to detect connector\n"); 1186 1187 if (aconnector->base.force && new_connection_type == dc_connection_none) { 1188 emulated_link_detect(aconnector->dc_link); 1189 1190 1191 drm_modeset_lock_all(dev); 1192 dm_restore_drm_connector_state(dev, connector); 1193 drm_modeset_unlock_all(dev); 1194 1195 if (aconnector->base.force == DRM_FORCE_UNSPECIFIED) 1196 drm_kms_helper_hotplug_event(dev); 1197 1198 } else if (dc_link_detect(aconnector->dc_link, DETECT_REASON_HPD)) { 1199 amdgpu_dm_update_connector_after_detect(aconnector); 1200 1201 1202 drm_modeset_lock_all(dev); 1203 dm_restore_drm_connector_state(dev, connector); 1204 drm_modeset_unlock_all(dev); 1205 1206 if (aconnector->base.force == DRM_FORCE_UNSPECIFIED) 1207 drm_kms_helper_hotplug_event(dev); 1208 } 1209 mutex_unlock(&aconnector->hpd_lock); 1210 1211 } 1212 1213 static void dm_handle_hpd_rx_irq(struct amdgpu_dm_connector *aconnector) 1214 { 1215 uint8_t esi[DP_PSR_ERROR_STATUS - DP_SINK_COUNT_ESI] = { 0 }; 1216 uint8_t dret; 1217 bool new_irq_handled = false; 1218 int dpcd_addr; 1219 int dpcd_bytes_to_read; 1220 1221 const int max_process_count = 30; 1222 int process_count = 0; 1223 1224 const struct dc_link_status *link_status = dc_link_get_status(aconnector->dc_link); 1225 1226 if (link_status->dpcd_caps->dpcd_rev.raw < 0x12) { 1227 dpcd_bytes_to_read = DP_LANE0_1_STATUS - DP_SINK_COUNT; 1228 /* DPCD 0x200 - 0x201 for downstream IRQ */ 1229 dpcd_addr = DP_SINK_COUNT; 1230 } else { 1231 dpcd_bytes_to_read = DP_PSR_ERROR_STATUS - DP_SINK_COUNT_ESI; 1232 /* DPCD 0x2002 - 0x2005 for downstream IRQ */ 1233 dpcd_addr = DP_SINK_COUNT_ESI; 1234 } 1235 1236 dret = drm_dp_dpcd_read( 1237 &aconnector->dm_dp_aux.aux, 1238 dpcd_addr, 1239 esi, 1240 dpcd_bytes_to_read); 1241 1242 while (dret == dpcd_bytes_to_read && 1243 process_count < max_process_count) { 1244 uint8_t retry; 1245 dret = 0; 1246 1247 process_count++; 1248 1249 DRM_DEBUG_DRIVER("ESI %02x %02x %02x\n", esi[0], esi[1], esi[2]); 1250 /* handle HPD short pulse irq */ 1251 if (aconnector->mst_mgr.mst_state) 1252 drm_dp_mst_hpd_irq( 1253 &aconnector->mst_mgr, 1254 esi, 1255 &new_irq_handled); 1256 1257 if (new_irq_handled) { 1258 /* ACK at DPCD to notify down stream */ 1259 const int ack_dpcd_bytes_to_write = 1260 dpcd_bytes_to_read - 1; 1261 1262 for (retry = 0; retry < 3; retry++) { 1263 uint8_t wret; 1264 1265 wret = drm_dp_dpcd_write( 1266 &aconnector->dm_dp_aux.aux, 1267 dpcd_addr + 1, 1268 &esi[1], 1269 ack_dpcd_bytes_to_write); 1270 if (wret == ack_dpcd_bytes_to_write) 1271 break; 1272 } 1273 1274 /* check if there is new irq to be handled */ 1275 dret = drm_dp_dpcd_read( 1276 &aconnector->dm_dp_aux.aux, 1277 dpcd_addr, 1278 esi, 1279 dpcd_bytes_to_read); 1280 1281 new_irq_handled = false; 1282 } else { 1283 break; 1284 } 1285 } 1286 1287 if (process_count == max_process_count) 1288 DRM_DEBUG_DRIVER("Loop exceeded max iterations\n"); 1289 } 1290 1291 static void handle_hpd_rx_irq(void *param) 1292 { 1293 struct amdgpu_dm_connector *aconnector = (struct amdgpu_dm_connector *)param; 1294 struct drm_connector *connector = &aconnector->base; 1295 struct drm_device *dev = connector->dev; 1296 struct dc_link *dc_link = aconnector->dc_link; 1297 bool is_mst_root_connector = aconnector->mst_mgr.mst_state; 1298 enum dc_connection_type new_connection_type = dc_connection_none; 1299 1300 /* 1301 * TODO:Temporary add mutex to protect hpd interrupt not have a gpio 1302 * conflict, after implement i2c helper, this mutex should be 1303 * retired. 1304 */ 1305 if (dc_link->type != dc_connection_mst_branch) 1306 mutex_lock(&aconnector->hpd_lock); 1307 1308 if (dc_link_handle_hpd_rx_irq(dc_link, NULL, NULL) && 1309 !is_mst_root_connector) { 1310 /* Downstream Port status changed. */ 1311 if (!dc_link_detect_sink(dc_link, &new_connection_type)) 1312 DRM_ERROR("KMS: Failed to detect connector\n"); 1313 1314 if (aconnector->base.force && new_connection_type == dc_connection_none) { 1315 emulated_link_detect(dc_link); 1316 1317 if (aconnector->fake_enable) 1318 aconnector->fake_enable = false; 1319 1320 amdgpu_dm_update_connector_after_detect(aconnector); 1321 1322 1323 drm_modeset_lock_all(dev); 1324 dm_restore_drm_connector_state(dev, connector); 1325 drm_modeset_unlock_all(dev); 1326 1327 drm_kms_helper_hotplug_event(dev); 1328 } else if (dc_link_detect(dc_link, DETECT_REASON_HPDRX)) { 1329 1330 if (aconnector->fake_enable) 1331 aconnector->fake_enable = false; 1332 1333 amdgpu_dm_update_connector_after_detect(aconnector); 1334 1335 1336 drm_modeset_lock_all(dev); 1337 dm_restore_drm_connector_state(dev, connector); 1338 drm_modeset_unlock_all(dev); 1339 1340 drm_kms_helper_hotplug_event(dev); 1341 } 1342 } 1343 if ((dc_link->cur_link_settings.lane_count != LANE_COUNT_UNKNOWN) || 1344 (dc_link->type == dc_connection_mst_branch)) 1345 dm_handle_hpd_rx_irq(aconnector); 1346 1347 if (dc_link->type != dc_connection_mst_branch) { 1348 drm_dp_cec_irq(&aconnector->dm_dp_aux.aux); 1349 mutex_unlock(&aconnector->hpd_lock); 1350 } 1351 } 1352 1353 static void register_hpd_handlers(struct amdgpu_device *adev) 1354 { 1355 struct drm_device *dev = adev->ddev; 1356 struct drm_connector *connector; 1357 struct amdgpu_dm_connector *aconnector; 1358 const struct dc_link *dc_link; 1359 struct dc_interrupt_params int_params = {0}; 1360 1361 int_params.requested_polarity = INTERRUPT_POLARITY_DEFAULT; 1362 int_params.current_polarity = INTERRUPT_POLARITY_DEFAULT; 1363 1364 list_for_each_entry(connector, 1365 &dev->mode_config.connector_list, head) { 1366 1367 aconnector = to_amdgpu_dm_connector(connector); 1368 dc_link = aconnector->dc_link; 1369 1370 if (DC_IRQ_SOURCE_INVALID != dc_link->irq_source_hpd) { 1371 int_params.int_context = INTERRUPT_LOW_IRQ_CONTEXT; 1372 int_params.irq_source = dc_link->irq_source_hpd; 1373 1374 amdgpu_dm_irq_register_interrupt(adev, &int_params, 1375 handle_hpd_irq, 1376 (void *) aconnector); 1377 } 1378 1379 if (DC_IRQ_SOURCE_INVALID != dc_link->irq_source_hpd_rx) { 1380 1381 /* Also register for DP short pulse (hpd_rx). */ 1382 int_params.int_context = INTERRUPT_LOW_IRQ_CONTEXT; 1383 int_params.irq_source = dc_link->irq_source_hpd_rx; 1384 1385 amdgpu_dm_irq_register_interrupt(adev, &int_params, 1386 handle_hpd_rx_irq, 1387 (void *) aconnector); 1388 } 1389 } 1390 } 1391 1392 /* Register IRQ sources and initialize IRQ callbacks */ 1393 static int dce110_register_irq_handlers(struct amdgpu_device *adev) 1394 { 1395 struct dc *dc = adev->dm.dc; 1396 struct common_irq_params *c_irq_params; 1397 struct dc_interrupt_params int_params = {0}; 1398 int r; 1399 int i; 1400 unsigned client_id = AMDGPU_IRQ_CLIENTID_LEGACY; 1401 1402 if (adev->asic_type == CHIP_VEGA10 || 1403 adev->asic_type == CHIP_VEGA12 || 1404 adev->asic_type == CHIP_VEGA20 || 1405 adev->asic_type == CHIP_RAVEN) 1406 client_id = SOC15_IH_CLIENTID_DCE; 1407 1408 int_params.requested_polarity = INTERRUPT_POLARITY_DEFAULT; 1409 int_params.current_polarity = INTERRUPT_POLARITY_DEFAULT; 1410 1411 /* 1412 * Actions of amdgpu_irq_add_id(): 1413 * 1. Register a set() function with base driver. 1414 * Base driver will call set() function to enable/disable an 1415 * interrupt in DC hardware. 1416 * 2. Register amdgpu_dm_irq_handler(). 1417 * Base driver will call amdgpu_dm_irq_handler() for ALL interrupts 1418 * coming from DC hardware. 1419 * amdgpu_dm_irq_handler() will re-direct the interrupt to DC 1420 * for acknowledging and handling. */ 1421 1422 /* Use VBLANK interrupt */ 1423 for (i = VISLANDS30_IV_SRCID_D1_VERTICAL_INTERRUPT0; i <= VISLANDS30_IV_SRCID_D6_VERTICAL_INTERRUPT0; i++) { 1424 r = amdgpu_irq_add_id(adev, client_id, i, &adev->crtc_irq); 1425 if (r) { 1426 DRM_ERROR("Failed to add crtc irq id!\n"); 1427 return r; 1428 } 1429 1430 int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT; 1431 int_params.irq_source = 1432 dc_interrupt_to_irq_source(dc, i, 0); 1433 1434 c_irq_params = &adev->dm.vblank_params[int_params.irq_source - DC_IRQ_SOURCE_VBLANK1]; 1435 1436 c_irq_params->adev = adev; 1437 c_irq_params->irq_src = int_params.irq_source; 1438 1439 amdgpu_dm_irq_register_interrupt(adev, &int_params, 1440 dm_crtc_high_irq, c_irq_params); 1441 } 1442 1443 /* Use GRPH_PFLIP interrupt */ 1444 for (i = VISLANDS30_IV_SRCID_D1_GRPH_PFLIP; 1445 i <= VISLANDS30_IV_SRCID_D6_GRPH_PFLIP; i += 2) { 1446 r = amdgpu_irq_add_id(adev, client_id, i, &adev->pageflip_irq); 1447 if (r) { 1448 DRM_ERROR("Failed to add page flip irq id!\n"); 1449 return r; 1450 } 1451 1452 int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT; 1453 int_params.irq_source = 1454 dc_interrupt_to_irq_source(dc, i, 0); 1455 1456 c_irq_params = &adev->dm.pflip_params[int_params.irq_source - DC_IRQ_SOURCE_PFLIP_FIRST]; 1457 1458 c_irq_params->adev = adev; 1459 c_irq_params->irq_src = int_params.irq_source; 1460 1461 amdgpu_dm_irq_register_interrupt(adev, &int_params, 1462 dm_pflip_high_irq, c_irq_params); 1463 1464 } 1465 1466 /* HPD */ 1467 r = amdgpu_irq_add_id(adev, client_id, 1468 VISLANDS30_IV_SRCID_HOTPLUG_DETECT_A, &adev->hpd_irq); 1469 if (r) { 1470 DRM_ERROR("Failed to add hpd irq id!\n"); 1471 return r; 1472 } 1473 1474 register_hpd_handlers(adev); 1475 1476 return 0; 1477 } 1478 1479 #if defined(CONFIG_DRM_AMD_DC_DCN1_0) 1480 /* Register IRQ sources and initialize IRQ callbacks */ 1481 static int dcn10_register_irq_handlers(struct amdgpu_device *adev) 1482 { 1483 struct dc *dc = adev->dm.dc; 1484 struct common_irq_params *c_irq_params; 1485 struct dc_interrupt_params int_params = {0}; 1486 int r; 1487 int i; 1488 1489 int_params.requested_polarity = INTERRUPT_POLARITY_DEFAULT; 1490 int_params.current_polarity = INTERRUPT_POLARITY_DEFAULT; 1491 1492 /* 1493 * Actions of amdgpu_irq_add_id(): 1494 * 1. Register a set() function with base driver. 1495 * Base driver will call set() function to enable/disable an 1496 * interrupt in DC hardware. 1497 * 2. Register amdgpu_dm_irq_handler(). 1498 * Base driver will call amdgpu_dm_irq_handler() for ALL interrupts 1499 * coming from DC hardware. 1500 * amdgpu_dm_irq_handler() will re-direct the interrupt to DC 1501 * for acknowledging and handling. 1502 */ 1503 1504 /* Use VSTARTUP interrupt */ 1505 for (i = DCN_1_0__SRCID__DC_D1_OTG_VSTARTUP; 1506 i <= DCN_1_0__SRCID__DC_D1_OTG_VSTARTUP + adev->mode_info.num_crtc - 1; 1507 i++) { 1508 r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_DCE, i, &adev->crtc_irq); 1509 1510 if (r) { 1511 DRM_ERROR("Failed to add crtc irq id!\n"); 1512 return r; 1513 } 1514 1515 int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT; 1516 int_params.irq_source = 1517 dc_interrupt_to_irq_source(dc, i, 0); 1518 1519 c_irq_params = &adev->dm.vblank_params[int_params.irq_source - DC_IRQ_SOURCE_VBLANK1]; 1520 1521 c_irq_params->adev = adev; 1522 c_irq_params->irq_src = int_params.irq_source; 1523 1524 amdgpu_dm_irq_register_interrupt(adev, &int_params, 1525 dm_crtc_high_irq, c_irq_params); 1526 } 1527 1528 /* Use GRPH_PFLIP interrupt */ 1529 for (i = DCN_1_0__SRCID__HUBP0_FLIP_INTERRUPT; 1530 i <= DCN_1_0__SRCID__HUBP0_FLIP_INTERRUPT + adev->mode_info.num_crtc - 1; 1531 i++) { 1532 r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_DCE, i, &adev->pageflip_irq); 1533 if (r) { 1534 DRM_ERROR("Failed to add page flip irq id!\n"); 1535 return r; 1536 } 1537 1538 int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT; 1539 int_params.irq_source = 1540 dc_interrupt_to_irq_source(dc, i, 0); 1541 1542 c_irq_params = &adev->dm.pflip_params[int_params.irq_source - DC_IRQ_SOURCE_PFLIP_FIRST]; 1543 1544 c_irq_params->adev = adev; 1545 c_irq_params->irq_src = int_params.irq_source; 1546 1547 amdgpu_dm_irq_register_interrupt(adev, &int_params, 1548 dm_pflip_high_irq, c_irq_params); 1549 1550 } 1551 1552 /* HPD */ 1553 r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_DCE, DCN_1_0__SRCID__DC_HPD1_INT, 1554 &adev->hpd_irq); 1555 if (r) { 1556 DRM_ERROR("Failed to add hpd irq id!\n"); 1557 return r; 1558 } 1559 1560 register_hpd_handlers(adev); 1561 1562 return 0; 1563 } 1564 #endif 1565 1566 /* 1567 * Acquires the lock for the atomic state object and returns 1568 * the new atomic state. 1569 * 1570 * This should only be called during atomic check. 1571 */ 1572 static int dm_atomic_get_state(struct drm_atomic_state *state, 1573 struct dm_atomic_state **dm_state) 1574 { 1575 struct drm_device *dev = state->dev; 1576 struct amdgpu_device *adev = dev->dev_private; 1577 struct amdgpu_display_manager *dm = &adev->dm; 1578 struct drm_private_state *priv_state; 1579 int ret; 1580 1581 if (*dm_state) 1582 return 0; 1583 1584 ret = drm_modeset_lock(&dm->atomic_obj_lock, state->acquire_ctx); 1585 if (ret) 1586 return ret; 1587 1588 priv_state = drm_atomic_get_private_obj_state(state, &dm->atomic_obj); 1589 if (IS_ERR(priv_state)) 1590 return PTR_ERR(priv_state); 1591 1592 *dm_state = to_dm_atomic_state(priv_state); 1593 1594 return 0; 1595 } 1596 1597 struct dm_atomic_state * 1598 dm_atomic_get_new_state(struct drm_atomic_state *state) 1599 { 1600 struct drm_device *dev = state->dev; 1601 struct amdgpu_device *adev = dev->dev_private; 1602 struct amdgpu_display_manager *dm = &adev->dm; 1603 struct drm_private_obj *obj; 1604 struct drm_private_state *new_obj_state; 1605 int i; 1606 1607 for_each_new_private_obj_in_state(state, obj, new_obj_state, i) { 1608 if (obj->funcs == dm->atomic_obj.funcs) 1609 return to_dm_atomic_state(new_obj_state); 1610 } 1611 1612 return NULL; 1613 } 1614 1615 struct dm_atomic_state * 1616 dm_atomic_get_old_state(struct drm_atomic_state *state) 1617 { 1618 struct drm_device *dev = state->dev; 1619 struct amdgpu_device *adev = dev->dev_private; 1620 struct amdgpu_display_manager *dm = &adev->dm; 1621 struct drm_private_obj *obj; 1622 struct drm_private_state *old_obj_state; 1623 int i; 1624 1625 for_each_old_private_obj_in_state(state, obj, old_obj_state, i) { 1626 if (obj->funcs == dm->atomic_obj.funcs) 1627 return to_dm_atomic_state(old_obj_state); 1628 } 1629 1630 return NULL; 1631 } 1632 1633 static struct drm_private_state * 1634 dm_atomic_duplicate_state(struct drm_private_obj *obj) 1635 { 1636 struct dm_atomic_state *old_state, *new_state; 1637 1638 new_state = kzalloc(sizeof(*new_state), GFP_KERNEL); 1639 if (!new_state) 1640 return NULL; 1641 1642 __drm_atomic_helper_private_obj_duplicate_state(obj, &new_state->base); 1643 1644 new_state->context = dc_create_state(); 1645 if (!new_state->context) { 1646 kfree(new_state); 1647 return NULL; 1648 } 1649 1650 old_state = to_dm_atomic_state(obj->state); 1651 if (old_state && old_state->context) 1652 dc_resource_state_copy_construct(old_state->context, 1653 new_state->context); 1654 1655 return &new_state->base; 1656 } 1657 1658 static void dm_atomic_destroy_state(struct drm_private_obj *obj, 1659 struct drm_private_state *state) 1660 { 1661 struct dm_atomic_state *dm_state = to_dm_atomic_state(state); 1662 1663 if (dm_state && dm_state->context) 1664 dc_release_state(dm_state->context); 1665 1666 kfree(dm_state); 1667 } 1668 1669 static struct drm_private_state_funcs dm_atomic_state_funcs = { 1670 .atomic_duplicate_state = dm_atomic_duplicate_state, 1671 .atomic_destroy_state = dm_atomic_destroy_state, 1672 }; 1673 1674 static int amdgpu_dm_mode_config_init(struct amdgpu_device *adev) 1675 { 1676 struct dm_atomic_state *state; 1677 int r; 1678 1679 adev->mode_info.mode_config_initialized = true; 1680 1681 adev->ddev->mode_config.funcs = (void *)&amdgpu_dm_mode_funcs; 1682 adev->ddev->mode_config.helper_private = &amdgpu_dm_mode_config_helperfuncs; 1683 1684 adev->ddev->mode_config.max_width = 16384; 1685 adev->ddev->mode_config.max_height = 16384; 1686 1687 adev->ddev->mode_config.preferred_depth = 24; 1688 adev->ddev->mode_config.prefer_shadow = 1; 1689 /* indicates support for immediate flip */ 1690 adev->ddev->mode_config.async_page_flip = true; 1691 1692 adev->ddev->mode_config.fb_base = adev->gmc.aper_base; 1693 1694 drm_modeset_lock_init(&adev->dm.atomic_obj_lock); 1695 1696 state = kzalloc(sizeof(*state), GFP_KERNEL); 1697 if (!state) 1698 return -ENOMEM; 1699 1700 state->context = dc_create_state(); 1701 if (!state->context) { 1702 kfree(state); 1703 return -ENOMEM; 1704 } 1705 1706 dc_resource_state_copy_construct_current(adev->dm.dc, state->context); 1707 1708 drm_atomic_private_obj_init(adev->ddev, 1709 &adev->dm.atomic_obj, 1710 &state->base, 1711 &dm_atomic_state_funcs); 1712 1713 r = amdgpu_display_modeset_create_props(adev); 1714 if (r) 1715 return r; 1716 1717 return 0; 1718 } 1719 1720 #define AMDGPU_DM_DEFAULT_MIN_BACKLIGHT 12 1721 #define AMDGPU_DM_DEFAULT_MAX_BACKLIGHT 255 1722 1723 #if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) ||\ 1724 defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE) 1725 1726 static void amdgpu_dm_update_backlight_caps(struct amdgpu_display_manager *dm) 1727 { 1728 #if defined(CONFIG_ACPI) 1729 struct amdgpu_dm_backlight_caps caps; 1730 1731 if (dm->backlight_caps.caps_valid) 1732 return; 1733 1734 amdgpu_acpi_get_backlight_caps(dm->adev, &caps); 1735 if (caps.caps_valid) { 1736 dm->backlight_caps.min_input_signal = caps.min_input_signal; 1737 dm->backlight_caps.max_input_signal = caps.max_input_signal; 1738 dm->backlight_caps.caps_valid = true; 1739 } else { 1740 dm->backlight_caps.min_input_signal = 1741 AMDGPU_DM_DEFAULT_MIN_BACKLIGHT; 1742 dm->backlight_caps.max_input_signal = 1743 AMDGPU_DM_DEFAULT_MAX_BACKLIGHT; 1744 } 1745 #else 1746 dm->backlight_caps.min_input_signal = AMDGPU_DM_DEFAULT_MIN_BACKLIGHT; 1747 dm->backlight_caps.max_input_signal = AMDGPU_DM_DEFAULT_MAX_BACKLIGHT; 1748 #endif 1749 } 1750 1751 static int amdgpu_dm_backlight_update_status(struct backlight_device *bd) 1752 { 1753 struct amdgpu_display_manager *dm = bl_get_data(bd); 1754 struct amdgpu_dm_backlight_caps caps; 1755 uint32_t brightness = bd->props.brightness; 1756 1757 amdgpu_dm_update_backlight_caps(dm); 1758 caps = dm->backlight_caps; 1759 /* 1760 * The brightness input is in the range 0-255 1761 * It needs to be rescaled to be between the 1762 * requested min and max input signal 1763 * 1764 * It also needs to be scaled up by 0x101 to 1765 * match the DC interface which has a range of 1766 * 0 to 0xffff 1767 */ 1768 brightness = 1769 brightness 1770 * 0x101 1771 * (caps.max_input_signal - caps.min_input_signal) 1772 / AMDGPU_MAX_BL_LEVEL 1773 + caps.min_input_signal * 0x101; 1774 1775 if (dc_link_set_backlight_level(dm->backlight_link, 1776 brightness, 0)) 1777 return 0; 1778 else 1779 return 1; 1780 } 1781 1782 static int amdgpu_dm_backlight_get_brightness(struct backlight_device *bd) 1783 { 1784 struct amdgpu_display_manager *dm = bl_get_data(bd); 1785 int ret = dc_link_get_backlight_level(dm->backlight_link); 1786 1787 if (ret == DC_ERROR_UNEXPECTED) 1788 return bd->props.brightness; 1789 return ret; 1790 } 1791 1792 static const struct backlight_ops amdgpu_dm_backlight_ops = { 1793 .get_brightness = amdgpu_dm_backlight_get_brightness, 1794 .update_status = amdgpu_dm_backlight_update_status, 1795 }; 1796 1797 static void 1798 amdgpu_dm_register_backlight_device(struct amdgpu_display_manager *dm) 1799 { 1800 char bl_name[16]; 1801 struct backlight_properties props = { 0 }; 1802 1803 amdgpu_dm_update_backlight_caps(dm); 1804 1805 props.max_brightness = AMDGPU_MAX_BL_LEVEL; 1806 props.brightness = AMDGPU_MAX_BL_LEVEL; 1807 props.type = BACKLIGHT_RAW; 1808 1809 snprintf(bl_name, sizeof(bl_name), "amdgpu_bl%d", 1810 dm->adev->ddev->primary->index); 1811 1812 dm->backlight_dev = backlight_device_register(bl_name, 1813 dm->adev->ddev->dev, 1814 dm, 1815 &amdgpu_dm_backlight_ops, 1816 &props); 1817 1818 if (IS_ERR(dm->backlight_dev)) 1819 DRM_ERROR("DM: Backlight registration failed!\n"); 1820 else 1821 DRM_DEBUG_DRIVER("DM: Registered Backlight device: %s\n", bl_name); 1822 } 1823 1824 #endif 1825 1826 static int initialize_plane(struct amdgpu_display_manager *dm, 1827 struct amdgpu_mode_info *mode_info, 1828 int plane_id) 1829 { 1830 struct drm_plane *plane; 1831 unsigned long possible_crtcs; 1832 int ret = 0; 1833 1834 plane = kzalloc(sizeof(struct drm_plane), GFP_KERNEL); 1835 mode_info->planes[plane_id] = plane; 1836 1837 if (!plane) { 1838 DRM_ERROR("KMS: Failed to allocate plane\n"); 1839 return -ENOMEM; 1840 } 1841 plane->type = mode_info->plane_type[plane_id]; 1842 1843 /* 1844 * HACK: IGT tests expect that each plane can only have 1845 * one possible CRTC. For now, set one CRTC for each 1846 * plane that is not an underlay, but still allow multiple 1847 * CRTCs for underlay planes. 1848 */ 1849 possible_crtcs = 1 << plane_id; 1850 if (plane_id >= dm->dc->caps.max_streams) 1851 possible_crtcs = 0xff; 1852 1853 ret = amdgpu_dm_plane_init(dm, mode_info->planes[plane_id], possible_crtcs); 1854 1855 if (ret) { 1856 DRM_ERROR("KMS: Failed to initialize plane\n"); 1857 return ret; 1858 } 1859 1860 return ret; 1861 } 1862 1863 1864 static void register_backlight_device(struct amdgpu_display_manager *dm, 1865 struct dc_link *link) 1866 { 1867 #if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) ||\ 1868 defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE) 1869 1870 if ((link->connector_signal & (SIGNAL_TYPE_EDP | SIGNAL_TYPE_LVDS)) && 1871 link->type != dc_connection_none) { 1872 /* 1873 * Event if registration failed, we should continue with 1874 * DM initialization because not having a backlight control 1875 * is better then a black screen. 1876 */ 1877 amdgpu_dm_register_backlight_device(dm); 1878 1879 if (dm->backlight_dev) 1880 dm->backlight_link = link; 1881 } 1882 #endif 1883 } 1884 1885 1886 /* 1887 * In this architecture, the association 1888 * connector -> encoder -> crtc 1889 * id not really requried. The crtc and connector will hold the 1890 * display_index as an abstraction to use with DAL component 1891 * 1892 * Returns 0 on success 1893 */ 1894 static int amdgpu_dm_initialize_drm_device(struct amdgpu_device *adev) 1895 { 1896 struct amdgpu_display_manager *dm = &adev->dm; 1897 int32_t i; 1898 struct amdgpu_dm_connector *aconnector = NULL; 1899 struct amdgpu_encoder *aencoder = NULL; 1900 struct amdgpu_mode_info *mode_info = &adev->mode_info; 1901 uint32_t link_cnt; 1902 int32_t total_overlay_planes, total_primary_planes; 1903 enum dc_connection_type new_connection_type = dc_connection_none; 1904 1905 link_cnt = dm->dc->caps.max_links; 1906 if (amdgpu_dm_mode_config_init(dm->adev)) { 1907 DRM_ERROR("DM: Failed to initialize mode config\n"); 1908 return -EINVAL; 1909 } 1910 1911 /* Identify the number of planes to be initialized */ 1912 total_overlay_planes = dm->dc->caps.max_slave_planes; 1913 total_primary_planes = dm->dc->caps.max_planes - dm->dc->caps.max_slave_planes; 1914 1915 /* First initialize overlay planes, index starting after primary planes */ 1916 for (i = (total_overlay_planes - 1); i >= 0; i--) { 1917 if (initialize_plane(dm, mode_info, (total_primary_planes + i))) { 1918 DRM_ERROR("KMS: Failed to initialize overlay plane\n"); 1919 goto fail; 1920 } 1921 } 1922 1923 /* Initialize primary planes */ 1924 for (i = (total_primary_planes - 1); i >= 0; i--) { 1925 if (initialize_plane(dm, mode_info, i)) { 1926 DRM_ERROR("KMS: Failed to initialize primary plane\n"); 1927 goto fail; 1928 } 1929 } 1930 1931 for (i = 0; i < dm->dc->caps.max_streams; i++) 1932 if (amdgpu_dm_crtc_init(dm, mode_info->planes[i], i)) { 1933 DRM_ERROR("KMS: Failed to initialize crtc\n"); 1934 goto fail; 1935 } 1936 1937 dm->display_indexes_num = dm->dc->caps.max_streams; 1938 1939 /* loops over all connectors on the board */ 1940 for (i = 0; i < link_cnt; i++) { 1941 struct dc_link *link = NULL; 1942 1943 if (i > AMDGPU_DM_MAX_DISPLAY_INDEX) { 1944 DRM_ERROR( 1945 "KMS: Cannot support more than %d display indexes\n", 1946 AMDGPU_DM_MAX_DISPLAY_INDEX); 1947 continue; 1948 } 1949 1950 aconnector = kzalloc(sizeof(*aconnector), GFP_KERNEL); 1951 if (!aconnector) 1952 goto fail; 1953 1954 aencoder = kzalloc(sizeof(*aencoder), GFP_KERNEL); 1955 if (!aencoder) 1956 goto fail; 1957 1958 if (amdgpu_dm_encoder_init(dm->ddev, aencoder, i)) { 1959 DRM_ERROR("KMS: Failed to initialize encoder\n"); 1960 goto fail; 1961 } 1962 1963 if (amdgpu_dm_connector_init(dm, aconnector, i, aencoder)) { 1964 DRM_ERROR("KMS: Failed to initialize connector\n"); 1965 goto fail; 1966 } 1967 1968 link = dc_get_link_at_index(dm->dc, i); 1969 1970 if (!dc_link_detect_sink(link, &new_connection_type)) 1971 DRM_ERROR("KMS: Failed to detect connector\n"); 1972 1973 if (aconnector->base.force && new_connection_type == dc_connection_none) { 1974 emulated_link_detect(link); 1975 amdgpu_dm_update_connector_after_detect(aconnector); 1976 1977 } else if (dc_link_detect(link, DETECT_REASON_BOOT)) { 1978 amdgpu_dm_update_connector_after_detect(aconnector); 1979 register_backlight_device(dm, link); 1980 } 1981 1982 1983 } 1984 1985 /* Software is initialized. Now we can register interrupt handlers. */ 1986 switch (adev->asic_type) { 1987 case CHIP_BONAIRE: 1988 case CHIP_HAWAII: 1989 case CHIP_KAVERI: 1990 case CHIP_KABINI: 1991 case CHIP_MULLINS: 1992 case CHIP_TONGA: 1993 case CHIP_FIJI: 1994 case CHIP_CARRIZO: 1995 case CHIP_STONEY: 1996 case CHIP_POLARIS11: 1997 case CHIP_POLARIS10: 1998 case CHIP_POLARIS12: 1999 case CHIP_VEGAM: 2000 case CHIP_VEGA10: 2001 case CHIP_VEGA12: 2002 case CHIP_VEGA20: 2003 if (dce110_register_irq_handlers(dm->adev)) { 2004 DRM_ERROR("DM: Failed to initialize IRQ\n"); 2005 goto fail; 2006 } 2007 break; 2008 #if defined(CONFIG_DRM_AMD_DC_DCN1_0) 2009 case CHIP_RAVEN: 2010 if (dcn10_register_irq_handlers(dm->adev)) { 2011 DRM_ERROR("DM: Failed to initialize IRQ\n"); 2012 goto fail; 2013 } 2014 break; 2015 #endif 2016 default: 2017 DRM_ERROR("Unsupported ASIC type: 0x%X\n", adev->asic_type); 2018 goto fail; 2019 } 2020 2021 if (adev->asic_type != CHIP_CARRIZO && adev->asic_type != CHIP_STONEY) 2022 dm->dc->debug.disable_stutter = amdgpu_pp_feature_mask & PP_STUTTER_MODE ? false : true; 2023 2024 return 0; 2025 fail: 2026 kfree(aencoder); 2027 kfree(aconnector); 2028 for (i = 0; i < dm->dc->caps.max_planes; i++) 2029 kfree(mode_info->planes[i]); 2030 return -EINVAL; 2031 } 2032 2033 static void amdgpu_dm_destroy_drm_device(struct amdgpu_display_manager *dm) 2034 { 2035 drm_mode_config_cleanup(dm->ddev); 2036 drm_atomic_private_obj_fini(&dm->atomic_obj); 2037 return; 2038 } 2039 2040 /****************************************************************************** 2041 * amdgpu_display_funcs functions 2042 *****************************************************************************/ 2043 2044 /* 2045 * dm_bandwidth_update - program display watermarks 2046 * 2047 * @adev: amdgpu_device pointer 2048 * 2049 * Calculate and program the display watermarks and line buffer allocation. 2050 */ 2051 static void dm_bandwidth_update(struct amdgpu_device *adev) 2052 { 2053 /* TODO: implement later */ 2054 } 2055 2056 static const struct amdgpu_display_funcs dm_display_funcs = { 2057 .bandwidth_update = dm_bandwidth_update, /* called unconditionally */ 2058 .vblank_get_counter = dm_vblank_get_counter,/* called unconditionally */ 2059 .backlight_set_level = NULL, /* never called for DC */ 2060 .backlight_get_level = NULL, /* never called for DC */ 2061 .hpd_sense = NULL,/* called unconditionally */ 2062 .hpd_set_polarity = NULL, /* called unconditionally */ 2063 .hpd_get_gpio_reg = NULL, /* VBIOS parsing. DAL does it. */ 2064 .page_flip_get_scanoutpos = 2065 dm_crtc_get_scanoutpos,/* called unconditionally */ 2066 .add_encoder = NULL, /* VBIOS parsing. DAL does it. */ 2067 .add_connector = NULL, /* VBIOS parsing. DAL does it. */ 2068 }; 2069 2070 #if defined(CONFIG_DEBUG_KERNEL_DC) 2071 2072 static ssize_t s3_debug_store(struct device *device, 2073 struct device_attribute *attr, 2074 const char *buf, 2075 size_t count) 2076 { 2077 int ret; 2078 int s3_state; 2079 struct pci_dev *pdev = to_pci_dev(device); 2080 struct drm_device *drm_dev = pci_get_drvdata(pdev); 2081 struct amdgpu_device *adev = drm_dev->dev_private; 2082 2083 ret = kstrtoint(buf, 0, &s3_state); 2084 2085 if (ret == 0) { 2086 if (s3_state) { 2087 dm_resume(adev); 2088 drm_kms_helper_hotplug_event(adev->ddev); 2089 } else 2090 dm_suspend(adev); 2091 } 2092 2093 return ret == 0 ? count : 0; 2094 } 2095 2096 DEVICE_ATTR_WO(s3_debug); 2097 2098 #endif 2099 2100 static int dm_early_init(void *handle) 2101 { 2102 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 2103 2104 switch (adev->asic_type) { 2105 case CHIP_BONAIRE: 2106 case CHIP_HAWAII: 2107 adev->mode_info.num_crtc = 6; 2108 adev->mode_info.num_hpd = 6; 2109 adev->mode_info.num_dig = 6; 2110 adev->mode_info.plane_type = dm_plane_type_default; 2111 break; 2112 case CHIP_KAVERI: 2113 adev->mode_info.num_crtc = 4; 2114 adev->mode_info.num_hpd = 6; 2115 adev->mode_info.num_dig = 7; 2116 adev->mode_info.plane_type = dm_plane_type_default; 2117 break; 2118 case CHIP_KABINI: 2119 case CHIP_MULLINS: 2120 adev->mode_info.num_crtc = 2; 2121 adev->mode_info.num_hpd = 6; 2122 adev->mode_info.num_dig = 6; 2123 adev->mode_info.plane_type = dm_plane_type_default; 2124 break; 2125 case CHIP_FIJI: 2126 case CHIP_TONGA: 2127 adev->mode_info.num_crtc = 6; 2128 adev->mode_info.num_hpd = 6; 2129 adev->mode_info.num_dig = 7; 2130 adev->mode_info.plane_type = dm_plane_type_default; 2131 break; 2132 case CHIP_CARRIZO: 2133 adev->mode_info.num_crtc = 3; 2134 adev->mode_info.num_hpd = 6; 2135 adev->mode_info.num_dig = 9; 2136 adev->mode_info.plane_type = dm_plane_type_carizzo; 2137 break; 2138 case CHIP_STONEY: 2139 adev->mode_info.num_crtc = 2; 2140 adev->mode_info.num_hpd = 6; 2141 adev->mode_info.num_dig = 9; 2142 adev->mode_info.plane_type = dm_plane_type_stoney; 2143 break; 2144 case CHIP_POLARIS11: 2145 case CHIP_POLARIS12: 2146 adev->mode_info.num_crtc = 5; 2147 adev->mode_info.num_hpd = 5; 2148 adev->mode_info.num_dig = 5; 2149 adev->mode_info.plane_type = dm_plane_type_default; 2150 break; 2151 case CHIP_POLARIS10: 2152 case CHIP_VEGAM: 2153 adev->mode_info.num_crtc = 6; 2154 adev->mode_info.num_hpd = 6; 2155 adev->mode_info.num_dig = 6; 2156 adev->mode_info.plane_type = dm_plane_type_default; 2157 break; 2158 case CHIP_VEGA10: 2159 case CHIP_VEGA12: 2160 case CHIP_VEGA20: 2161 adev->mode_info.num_crtc = 6; 2162 adev->mode_info.num_hpd = 6; 2163 adev->mode_info.num_dig = 6; 2164 adev->mode_info.plane_type = dm_plane_type_default; 2165 break; 2166 #if defined(CONFIG_DRM_AMD_DC_DCN1_0) 2167 case CHIP_RAVEN: 2168 adev->mode_info.num_crtc = 4; 2169 adev->mode_info.num_hpd = 4; 2170 adev->mode_info.num_dig = 4; 2171 adev->mode_info.plane_type = dm_plane_type_default; 2172 break; 2173 #endif 2174 default: 2175 DRM_ERROR("Unsupported ASIC type: 0x%X\n", adev->asic_type); 2176 return -EINVAL; 2177 } 2178 2179 amdgpu_dm_set_irq_funcs(adev); 2180 2181 if (adev->mode_info.funcs == NULL) 2182 adev->mode_info.funcs = &dm_display_funcs; 2183 2184 /* 2185 * Note: Do NOT change adev->audio_endpt_rreg and 2186 * adev->audio_endpt_wreg because they are initialised in 2187 * amdgpu_device_init() 2188 */ 2189 #if defined(CONFIG_DEBUG_KERNEL_DC) 2190 device_create_file( 2191 adev->ddev->dev, 2192 &dev_attr_s3_debug); 2193 #endif 2194 2195 return 0; 2196 } 2197 2198 static bool modeset_required(struct drm_crtc_state *crtc_state, 2199 struct dc_stream_state *new_stream, 2200 struct dc_stream_state *old_stream) 2201 { 2202 if (!drm_atomic_crtc_needs_modeset(crtc_state)) 2203 return false; 2204 2205 if (!crtc_state->enable) 2206 return false; 2207 2208 return crtc_state->active; 2209 } 2210 2211 static bool modereset_required(struct drm_crtc_state *crtc_state) 2212 { 2213 if (!drm_atomic_crtc_needs_modeset(crtc_state)) 2214 return false; 2215 2216 return !crtc_state->enable || !crtc_state->active; 2217 } 2218 2219 static void amdgpu_dm_encoder_destroy(struct drm_encoder *encoder) 2220 { 2221 drm_encoder_cleanup(encoder); 2222 kfree(encoder); 2223 } 2224 2225 static const struct drm_encoder_funcs amdgpu_dm_encoder_funcs = { 2226 .destroy = amdgpu_dm_encoder_destroy, 2227 }; 2228 2229 static bool fill_rects_from_plane_state(const struct drm_plane_state *state, 2230 struct dc_plane_state *plane_state) 2231 { 2232 plane_state->src_rect.x = state->src_x >> 16; 2233 plane_state->src_rect.y = state->src_y >> 16; 2234 /* we ignore the mantissa for now and do not deal with floating pixels :( */ 2235 plane_state->src_rect.width = state->src_w >> 16; 2236 2237 if (plane_state->src_rect.width == 0) 2238 return false; 2239 2240 plane_state->src_rect.height = state->src_h >> 16; 2241 if (plane_state->src_rect.height == 0) 2242 return false; 2243 2244 plane_state->dst_rect.x = state->crtc_x; 2245 plane_state->dst_rect.y = state->crtc_y; 2246 2247 if (state->crtc_w == 0) 2248 return false; 2249 2250 plane_state->dst_rect.width = state->crtc_w; 2251 2252 if (state->crtc_h == 0) 2253 return false; 2254 2255 plane_state->dst_rect.height = state->crtc_h; 2256 2257 plane_state->clip_rect = plane_state->dst_rect; 2258 2259 switch (state->rotation & DRM_MODE_ROTATE_MASK) { 2260 case DRM_MODE_ROTATE_0: 2261 plane_state->rotation = ROTATION_ANGLE_0; 2262 break; 2263 case DRM_MODE_ROTATE_90: 2264 plane_state->rotation = ROTATION_ANGLE_90; 2265 break; 2266 case DRM_MODE_ROTATE_180: 2267 plane_state->rotation = ROTATION_ANGLE_180; 2268 break; 2269 case DRM_MODE_ROTATE_270: 2270 plane_state->rotation = ROTATION_ANGLE_270; 2271 break; 2272 default: 2273 plane_state->rotation = ROTATION_ANGLE_0; 2274 break; 2275 } 2276 2277 return true; 2278 } 2279 static int get_fb_info(const struct amdgpu_framebuffer *amdgpu_fb, 2280 uint64_t *tiling_flags) 2281 { 2282 struct amdgpu_bo *rbo = gem_to_amdgpu_bo(amdgpu_fb->base.obj[0]); 2283 int r = amdgpu_bo_reserve(rbo, false); 2284 2285 if (unlikely(r)) { 2286 /* Don't show error message when returning -ERESTARTSYS */ 2287 if (r != -ERESTARTSYS) 2288 DRM_ERROR("Unable to reserve buffer: %d\n", r); 2289 return r; 2290 } 2291 2292 if (tiling_flags) 2293 amdgpu_bo_get_tiling_flags(rbo, tiling_flags); 2294 2295 amdgpu_bo_unreserve(rbo); 2296 2297 return r; 2298 } 2299 2300 static inline uint64_t get_dcc_address(uint64_t address, uint64_t tiling_flags) 2301 { 2302 uint32_t offset = AMDGPU_TILING_GET(tiling_flags, DCC_OFFSET_256B); 2303 2304 return offset ? (address + offset * 256) : 0; 2305 } 2306 2307 static bool fill_plane_dcc_attributes(struct amdgpu_device *adev, 2308 const struct amdgpu_framebuffer *afb, 2309 struct dc_plane_state *plane_state, 2310 uint64_t info) 2311 { 2312 struct dc *dc = adev->dm.dc; 2313 struct dc_dcc_surface_param input; 2314 struct dc_surface_dcc_cap output; 2315 uint32_t offset = AMDGPU_TILING_GET(info, DCC_OFFSET_256B); 2316 uint32_t i64b = AMDGPU_TILING_GET(info, DCC_INDEPENDENT_64B) != 0; 2317 uint64_t dcc_address; 2318 2319 memset(&input, 0, sizeof(input)); 2320 memset(&output, 0, sizeof(output)); 2321 2322 if (!offset) 2323 return false; 2324 2325 if (!dc->cap_funcs.get_dcc_compression_cap) 2326 return false; 2327 2328 input.format = plane_state->format; 2329 input.surface_size.width = 2330 plane_state->plane_size.grph.surface_size.width; 2331 input.surface_size.height = 2332 plane_state->plane_size.grph.surface_size.height; 2333 input.swizzle_mode = plane_state->tiling_info.gfx9.swizzle; 2334 2335 if (plane_state->rotation == ROTATION_ANGLE_0 || 2336 plane_state->rotation == ROTATION_ANGLE_180) 2337 input.scan = SCAN_DIRECTION_HORIZONTAL; 2338 else if (plane_state->rotation == ROTATION_ANGLE_90 || 2339 plane_state->rotation == ROTATION_ANGLE_270) 2340 input.scan = SCAN_DIRECTION_VERTICAL; 2341 2342 if (!dc->cap_funcs.get_dcc_compression_cap(dc, &input, &output)) 2343 return false; 2344 2345 if (!output.capable) 2346 return false; 2347 2348 if (i64b == 0 && output.grph.rgb.independent_64b_blks != 0) 2349 return false; 2350 2351 plane_state->dcc.enable = 1; 2352 plane_state->dcc.grph.meta_pitch = 2353 AMDGPU_TILING_GET(info, DCC_PITCH_MAX) + 1; 2354 plane_state->dcc.grph.independent_64b_blks = i64b; 2355 2356 dcc_address = get_dcc_address(afb->address, info); 2357 plane_state->address.grph.meta_addr.low_part = 2358 lower_32_bits(dcc_address); 2359 plane_state->address.grph.meta_addr.high_part = 2360 upper_32_bits(dcc_address); 2361 2362 return true; 2363 } 2364 2365 static int fill_plane_attributes_from_fb(struct amdgpu_device *adev, 2366 struct dc_plane_state *plane_state, 2367 const struct amdgpu_framebuffer *amdgpu_fb) 2368 { 2369 uint64_t tiling_flags; 2370 unsigned int awidth; 2371 const struct drm_framebuffer *fb = &amdgpu_fb->base; 2372 int ret = 0; 2373 struct drm_format_name_buf format_name; 2374 2375 ret = get_fb_info( 2376 amdgpu_fb, 2377 &tiling_flags); 2378 2379 if (ret) 2380 return ret; 2381 2382 switch (fb->format->format) { 2383 case DRM_FORMAT_C8: 2384 plane_state->format = SURFACE_PIXEL_FORMAT_GRPH_PALETA_256_COLORS; 2385 break; 2386 case DRM_FORMAT_RGB565: 2387 plane_state->format = SURFACE_PIXEL_FORMAT_GRPH_RGB565; 2388 break; 2389 case DRM_FORMAT_XRGB8888: 2390 case DRM_FORMAT_ARGB8888: 2391 plane_state->format = SURFACE_PIXEL_FORMAT_GRPH_ARGB8888; 2392 break; 2393 case DRM_FORMAT_XRGB2101010: 2394 case DRM_FORMAT_ARGB2101010: 2395 plane_state->format = SURFACE_PIXEL_FORMAT_GRPH_ARGB2101010; 2396 break; 2397 case DRM_FORMAT_XBGR2101010: 2398 case DRM_FORMAT_ABGR2101010: 2399 plane_state->format = SURFACE_PIXEL_FORMAT_GRPH_ABGR2101010; 2400 break; 2401 case DRM_FORMAT_XBGR8888: 2402 case DRM_FORMAT_ABGR8888: 2403 plane_state->format = SURFACE_PIXEL_FORMAT_GRPH_ABGR8888; 2404 break; 2405 case DRM_FORMAT_NV21: 2406 plane_state->format = SURFACE_PIXEL_FORMAT_VIDEO_420_YCbCr; 2407 break; 2408 case DRM_FORMAT_NV12: 2409 plane_state->format = SURFACE_PIXEL_FORMAT_VIDEO_420_YCrCb; 2410 break; 2411 default: 2412 DRM_ERROR("Unsupported screen format %s\n", 2413 drm_get_format_name(fb->format->format, &format_name)); 2414 return -EINVAL; 2415 } 2416 2417 memset(&plane_state->address, 0, sizeof(plane_state->address)); 2418 memset(&plane_state->tiling_info, 0, sizeof(plane_state->tiling_info)); 2419 memset(&plane_state->dcc, 0, sizeof(plane_state->dcc)); 2420 2421 if (plane_state->format < SURFACE_PIXEL_FORMAT_VIDEO_BEGIN) { 2422 plane_state->address.type = PLN_ADDR_TYPE_GRAPHICS; 2423 plane_state->plane_size.grph.surface_size.x = 0; 2424 plane_state->plane_size.grph.surface_size.y = 0; 2425 plane_state->plane_size.grph.surface_size.width = fb->width; 2426 plane_state->plane_size.grph.surface_size.height = fb->height; 2427 plane_state->plane_size.grph.surface_pitch = 2428 fb->pitches[0] / fb->format->cpp[0]; 2429 /* TODO: unhardcode */ 2430 plane_state->color_space = COLOR_SPACE_SRGB; 2431 2432 } else { 2433 awidth = ALIGN(fb->width, 64); 2434 plane_state->address.type = PLN_ADDR_TYPE_VIDEO_PROGRESSIVE; 2435 plane_state->plane_size.video.luma_size.x = 0; 2436 plane_state->plane_size.video.luma_size.y = 0; 2437 plane_state->plane_size.video.luma_size.width = awidth; 2438 plane_state->plane_size.video.luma_size.height = fb->height; 2439 /* TODO: unhardcode */ 2440 plane_state->plane_size.video.luma_pitch = awidth; 2441 2442 plane_state->plane_size.video.chroma_size.x = 0; 2443 plane_state->plane_size.video.chroma_size.y = 0; 2444 plane_state->plane_size.video.chroma_size.width = awidth; 2445 plane_state->plane_size.video.chroma_size.height = fb->height; 2446 plane_state->plane_size.video.chroma_pitch = awidth / 2; 2447 2448 /* TODO: unhardcode */ 2449 plane_state->color_space = COLOR_SPACE_YCBCR709; 2450 } 2451 2452 /* Fill GFX8 params */ 2453 if (AMDGPU_TILING_GET(tiling_flags, ARRAY_MODE) == DC_ARRAY_2D_TILED_THIN1) { 2454 unsigned int bankw, bankh, mtaspect, tile_split, num_banks; 2455 2456 bankw = AMDGPU_TILING_GET(tiling_flags, BANK_WIDTH); 2457 bankh = AMDGPU_TILING_GET(tiling_flags, BANK_HEIGHT); 2458 mtaspect = AMDGPU_TILING_GET(tiling_flags, MACRO_TILE_ASPECT); 2459 tile_split = AMDGPU_TILING_GET(tiling_flags, TILE_SPLIT); 2460 num_banks = AMDGPU_TILING_GET(tiling_flags, NUM_BANKS); 2461 2462 /* XXX fix me for VI */ 2463 plane_state->tiling_info.gfx8.num_banks = num_banks; 2464 plane_state->tiling_info.gfx8.array_mode = 2465 DC_ARRAY_2D_TILED_THIN1; 2466 plane_state->tiling_info.gfx8.tile_split = tile_split; 2467 plane_state->tiling_info.gfx8.bank_width = bankw; 2468 plane_state->tiling_info.gfx8.bank_height = bankh; 2469 plane_state->tiling_info.gfx8.tile_aspect = mtaspect; 2470 plane_state->tiling_info.gfx8.tile_mode = 2471 DC_ADDR_SURF_MICRO_TILING_DISPLAY; 2472 } else if (AMDGPU_TILING_GET(tiling_flags, ARRAY_MODE) 2473 == DC_ARRAY_1D_TILED_THIN1) { 2474 plane_state->tiling_info.gfx8.array_mode = DC_ARRAY_1D_TILED_THIN1; 2475 } 2476 2477 plane_state->tiling_info.gfx8.pipe_config = 2478 AMDGPU_TILING_GET(tiling_flags, PIPE_CONFIG); 2479 2480 if (adev->asic_type == CHIP_VEGA10 || 2481 adev->asic_type == CHIP_VEGA12 || 2482 adev->asic_type == CHIP_VEGA20 || 2483 adev->asic_type == CHIP_RAVEN) { 2484 /* Fill GFX9 params */ 2485 plane_state->tiling_info.gfx9.num_pipes = 2486 adev->gfx.config.gb_addr_config_fields.num_pipes; 2487 plane_state->tiling_info.gfx9.num_banks = 2488 adev->gfx.config.gb_addr_config_fields.num_banks; 2489 plane_state->tiling_info.gfx9.pipe_interleave = 2490 adev->gfx.config.gb_addr_config_fields.pipe_interleave_size; 2491 plane_state->tiling_info.gfx9.num_shader_engines = 2492 adev->gfx.config.gb_addr_config_fields.num_se; 2493 plane_state->tiling_info.gfx9.max_compressed_frags = 2494 adev->gfx.config.gb_addr_config_fields.max_compress_frags; 2495 plane_state->tiling_info.gfx9.num_rb_per_se = 2496 adev->gfx.config.gb_addr_config_fields.num_rb_per_se; 2497 plane_state->tiling_info.gfx9.swizzle = 2498 AMDGPU_TILING_GET(tiling_flags, SWIZZLE_MODE); 2499 plane_state->tiling_info.gfx9.shaderEnable = 1; 2500 2501 fill_plane_dcc_attributes(adev, amdgpu_fb, plane_state, 2502 tiling_flags); 2503 } 2504 2505 plane_state->visible = true; 2506 plane_state->scaling_quality.h_taps_c = 0; 2507 plane_state->scaling_quality.v_taps_c = 0; 2508 2509 /* is this needed? is plane_state zeroed at allocation? */ 2510 plane_state->scaling_quality.h_taps = 0; 2511 plane_state->scaling_quality.v_taps = 0; 2512 plane_state->stereo_format = PLANE_STEREO_FORMAT_NONE; 2513 2514 return ret; 2515 2516 } 2517 2518 static int fill_plane_attributes(struct amdgpu_device *adev, 2519 struct dc_plane_state *dc_plane_state, 2520 struct drm_plane_state *plane_state, 2521 struct drm_crtc_state *crtc_state) 2522 { 2523 const struct amdgpu_framebuffer *amdgpu_fb = 2524 to_amdgpu_framebuffer(plane_state->fb); 2525 const struct drm_crtc *crtc = plane_state->crtc; 2526 int ret = 0; 2527 2528 if (!fill_rects_from_plane_state(plane_state, dc_plane_state)) 2529 return -EINVAL; 2530 2531 ret = fill_plane_attributes_from_fb( 2532 crtc->dev->dev_private, 2533 dc_plane_state, 2534 amdgpu_fb); 2535 2536 if (ret) 2537 return ret; 2538 2539 /* 2540 * Always set input transfer function, since plane state is refreshed 2541 * every time. 2542 */ 2543 ret = amdgpu_dm_set_degamma_lut(crtc_state, dc_plane_state); 2544 if (ret) { 2545 dc_transfer_func_release(dc_plane_state->in_transfer_func); 2546 dc_plane_state->in_transfer_func = NULL; 2547 } 2548 2549 return ret; 2550 } 2551 2552 static void update_stream_scaling_settings(const struct drm_display_mode *mode, 2553 const struct dm_connector_state *dm_state, 2554 struct dc_stream_state *stream) 2555 { 2556 enum amdgpu_rmx_type rmx_type; 2557 2558 struct rect src = { 0 }; /* viewport in composition space*/ 2559 struct rect dst = { 0 }; /* stream addressable area */ 2560 2561 /* no mode. nothing to be done */ 2562 if (!mode) 2563 return; 2564 2565 /* Full screen scaling by default */ 2566 src.width = mode->hdisplay; 2567 src.height = mode->vdisplay; 2568 dst.width = stream->timing.h_addressable; 2569 dst.height = stream->timing.v_addressable; 2570 2571 if (dm_state) { 2572 rmx_type = dm_state->scaling; 2573 if (rmx_type == RMX_ASPECT || rmx_type == RMX_OFF) { 2574 if (src.width * dst.height < 2575 src.height * dst.width) { 2576 /* height needs less upscaling/more downscaling */ 2577 dst.width = src.width * 2578 dst.height / src.height; 2579 } else { 2580 /* width needs less upscaling/more downscaling */ 2581 dst.height = src.height * 2582 dst.width / src.width; 2583 } 2584 } else if (rmx_type == RMX_CENTER) { 2585 dst = src; 2586 } 2587 2588 dst.x = (stream->timing.h_addressable - dst.width) / 2; 2589 dst.y = (stream->timing.v_addressable - dst.height) / 2; 2590 2591 if (dm_state->underscan_enable) { 2592 dst.x += dm_state->underscan_hborder / 2; 2593 dst.y += dm_state->underscan_vborder / 2; 2594 dst.width -= dm_state->underscan_hborder; 2595 dst.height -= dm_state->underscan_vborder; 2596 } 2597 } 2598 2599 stream->src = src; 2600 stream->dst = dst; 2601 2602 DRM_DEBUG_DRIVER("Destination Rectangle x:%d y:%d width:%d height:%d\n", 2603 dst.x, dst.y, dst.width, dst.height); 2604 2605 } 2606 2607 static enum dc_color_depth 2608 convert_color_depth_from_display_info(const struct drm_connector *connector) 2609 { 2610 struct dm_connector_state *dm_conn_state = 2611 to_dm_connector_state(connector->state); 2612 uint32_t bpc = connector->display_info.bpc; 2613 2614 /* TODO: Remove this when there's support for max_bpc in drm */ 2615 if (dm_conn_state && bpc > dm_conn_state->max_bpc) 2616 /* Round down to nearest even number. */ 2617 bpc = dm_conn_state->max_bpc - (dm_conn_state->max_bpc & 1); 2618 2619 switch (bpc) { 2620 case 0: 2621 /* 2622 * Temporary Work around, DRM doesn't parse color depth for 2623 * EDID revision before 1.4 2624 * TODO: Fix edid parsing 2625 */ 2626 return COLOR_DEPTH_888; 2627 case 6: 2628 return COLOR_DEPTH_666; 2629 case 8: 2630 return COLOR_DEPTH_888; 2631 case 10: 2632 return COLOR_DEPTH_101010; 2633 case 12: 2634 return COLOR_DEPTH_121212; 2635 case 14: 2636 return COLOR_DEPTH_141414; 2637 case 16: 2638 return COLOR_DEPTH_161616; 2639 default: 2640 return COLOR_DEPTH_UNDEFINED; 2641 } 2642 } 2643 2644 static enum dc_aspect_ratio 2645 get_aspect_ratio(const struct drm_display_mode *mode_in) 2646 { 2647 /* 1-1 mapping, since both enums follow the HDMI spec. */ 2648 return (enum dc_aspect_ratio) mode_in->picture_aspect_ratio; 2649 } 2650 2651 static enum dc_color_space 2652 get_output_color_space(const struct dc_crtc_timing *dc_crtc_timing) 2653 { 2654 enum dc_color_space color_space = COLOR_SPACE_SRGB; 2655 2656 switch (dc_crtc_timing->pixel_encoding) { 2657 case PIXEL_ENCODING_YCBCR422: 2658 case PIXEL_ENCODING_YCBCR444: 2659 case PIXEL_ENCODING_YCBCR420: 2660 { 2661 /* 2662 * 27030khz is the separation point between HDTV and SDTV 2663 * according to HDMI spec, we use YCbCr709 and YCbCr601 2664 * respectively 2665 */ 2666 if (dc_crtc_timing->pix_clk_100hz > 270300) { 2667 if (dc_crtc_timing->flags.Y_ONLY) 2668 color_space = 2669 COLOR_SPACE_YCBCR709_LIMITED; 2670 else 2671 color_space = COLOR_SPACE_YCBCR709; 2672 } else { 2673 if (dc_crtc_timing->flags.Y_ONLY) 2674 color_space = 2675 COLOR_SPACE_YCBCR601_LIMITED; 2676 else 2677 color_space = COLOR_SPACE_YCBCR601; 2678 } 2679 2680 } 2681 break; 2682 case PIXEL_ENCODING_RGB: 2683 color_space = COLOR_SPACE_SRGB; 2684 break; 2685 2686 default: 2687 WARN_ON(1); 2688 break; 2689 } 2690 2691 return color_space; 2692 } 2693 2694 static void reduce_mode_colour_depth(struct dc_crtc_timing *timing_out) 2695 { 2696 if (timing_out->display_color_depth <= COLOR_DEPTH_888) 2697 return; 2698 2699 timing_out->display_color_depth--; 2700 } 2701 2702 static void adjust_colour_depth_from_display_info(struct dc_crtc_timing *timing_out, 2703 const struct drm_display_info *info) 2704 { 2705 int normalized_clk; 2706 if (timing_out->display_color_depth <= COLOR_DEPTH_888) 2707 return; 2708 do { 2709 normalized_clk = timing_out->pix_clk_100hz / 10; 2710 /* YCbCr 4:2:0 requires additional adjustment of 1/2 */ 2711 if (timing_out->pixel_encoding == PIXEL_ENCODING_YCBCR420) 2712 normalized_clk /= 2; 2713 /* Adjusting pix clock following on HDMI spec based on colour depth */ 2714 switch (timing_out->display_color_depth) { 2715 case COLOR_DEPTH_101010: 2716 normalized_clk = (normalized_clk * 30) / 24; 2717 break; 2718 case COLOR_DEPTH_121212: 2719 normalized_clk = (normalized_clk * 36) / 24; 2720 break; 2721 case COLOR_DEPTH_161616: 2722 normalized_clk = (normalized_clk * 48) / 24; 2723 break; 2724 default: 2725 return; 2726 } 2727 if (normalized_clk <= info->max_tmds_clock) 2728 return; 2729 reduce_mode_colour_depth(timing_out); 2730 2731 } while (timing_out->display_color_depth > COLOR_DEPTH_888); 2732 2733 } 2734 2735 static void 2736 fill_stream_properties_from_drm_display_mode(struct dc_stream_state *stream, 2737 const struct drm_display_mode *mode_in, 2738 const struct drm_connector *connector, 2739 const struct dc_stream_state *old_stream) 2740 { 2741 struct dc_crtc_timing *timing_out = &stream->timing; 2742 const struct drm_display_info *info = &connector->display_info; 2743 2744 memset(timing_out, 0, sizeof(struct dc_crtc_timing)); 2745 2746 timing_out->h_border_left = 0; 2747 timing_out->h_border_right = 0; 2748 timing_out->v_border_top = 0; 2749 timing_out->v_border_bottom = 0; 2750 /* TODO: un-hardcode */ 2751 if (drm_mode_is_420_only(info, mode_in) 2752 && stream->signal == SIGNAL_TYPE_HDMI_TYPE_A) 2753 timing_out->pixel_encoding = PIXEL_ENCODING_YCBCR420; 2754 else if ((connector->display_info.color_formats & DRM_COLOR_FORMAT_YCRCB444) 2755 && stream->signal == SIGNAL_TYPE_HDMI_TYPE_A) 2756 timing_out->pixel_encoding = PIXEL_ENCODING_YCBCR444; 2757 else 2758 timing_out->pixel_encoding = PIXEL_ENCODING_RGB; 2759 2760 timing_out->timing_3d_format = TIMING_3D_FORMAT_NONE; 2761 timing_out->display_color_depth = convert_color_depth_from_display_info( 2762 connector); 2763 timing_out->scan_type = SCANNING_TYPE_NODATA; 2764 timing_out->hdmi_vic = 0; 2765 2766 if(old_stream) { 2767 timing_out->vic = old_stream->timing.vic; 2768 timing_out->flags.HSYNC_POSITIVE_POLARITY = old_stream->timing.flags.HSYNC_POSITIVE_POLARITY; 2769 timing_out->flags.VSYNC_POSITIVE_POLARITY = old_stream->timing.flags.VSYNC_POSITIVE_POLARITY; 2770 } else { 2771 timing_out->vic = drm_match_cea_mode(mode_in); 2772 if (mode_in->flags & DRM_MODE_FLAG_PHSYNC) 2773 timing_out->flags.HSYNC_POSITIVE_POLARITY = 1; 2774 if (mode_in->flags & DRM_MODE_FLAG_PVSYNC) 2775 timing_out->flags.VSYNC_POSITIVE_POLARITY = 1; 2776 } 2777 2778 timing_out->h_addressable = mode_in->crtc_hdisplay; 2779 timing_out->h_total = mode_in->crtc_htotal; 2780 timing_out->h_sync_width = 2781 mode_in->crtc_hsync_end - mode_in->crtc_hsync_start; 2782 timing_out->h_front_porch = 2783 mode_in->crtc_hsync_start - mode_in->crtc_hdisplay; 2784 timing_out->v_total = mode_in->crtc_vtotal; 2785 timing_out->v_addressable = mode_in->crtc_vdisplay; 2786 timing_out->v_front_porch = 2787 mode_in->crtc_vsync_start - mode_in->crtc_vdisplay; 2788 timing_out->v_sync_width = 2789 mode_in->crtc_vsync_end - mode_in->crtc_vsync_start; 2790 timing_out->pix_clk_100hz = mode_in->crtc_clock * 10; 2791 timing_out->aspect_ratio = get_aspect_ratio(mode_in); 2792 2793 stream->output_color_space = get_output_color_space(timing_out); 2794 2795 stream->out_transfer_func->type = TF_TYPE_PREDEFINED; 2796 stream->out_transfer_func->tf = TRANSFER_FUNCTION_SRGB; 2797 if (stream->signal == SIGNAL_TYPE_HDMI_TYPE_A) 2798 adjust_colour_depth_from_display_info(timing_out, info); 2799 } 2800 2801 static void fill_audio_info(struct audio_info *audio_info, 2802 const struct drm_connector *drm_connector, 2803 const struct dc_sink *dc_sink) 2804 { 2805 int i = 0; 2806 int cea_revision = 0; 2807 const struct dc_edid_caps *edid_caps = &dc_sink->edid_caps; 2808 2809 audio_info->manufacture_id = edid_caps->manufacturer_id; 2810 audio_info->product_id = edid_caps->product_id; 2811 2812 cea_revision = drm_connector->display_info.cea_rev; 2813 2814 strscpy(audio_info->display_name, 2815 edid_caps->display_name, 2816 AUDIO_INFO_DISPLAY_NAME_SIZE_IN_CHARS); 2817 2818 if (cea_revision >= 3) { 2819 audio_info->mode_count = edid_caps->audio_mode_count; 2820 2821 for (i = 0; i < audio_info->mode_count; ++i) { 2822 audio_info->modes[i].format_code = 2823 (enum audio_format_code) 2824 (edid_caps->audio_modes[i].format_code); 2825 audio_info->modes[i].channel_count = 2826 edid_caps->audio_modes[i].channel_count; 2827 audio_info->modes[i].sample_rates.all = 2828 edid_caps->audio_modes[i].sample_rate; 2829 audio_info->modes[i].sample_size = 2830 edid_caps->audio_modes[i].sample_size; 2831 } 2832 } 2833 2834 audio_info->flags.all = edid_caps->speaker_flags; 2835 2836 /* TODO: We only check for the progressive mode, check for interlace mode too */ 2837 if (drm_connector->latency_present[0]) { 2838 audio_info->video_latency = drm_connector->video_latency[0]; 2839 audio_info->audio_latency = drm_connector->audio_latency[0]; 2840 } 2841 2842 /* TODO: For DP, video and audio latency should be calculated from DPCD caps */ 2843 2844 } 2845 2846 static void 2847 copy_crtc_timing_for_drm_display_mode(const struct drm_display_mode *src_mode, 2848 struct drm_display_mode *dst_mode) 2849 { 2850 dst_mode->crtc_hdisplay = src_mode->crtc_hdisplay; 2851 dst_mode->crtc_vdisplay = src_mode->crtc_vdisplay; 2852 dst_mode->crtc_clock = src_mode->crtc_clock; 2853 dst_mode->crtc_hblank_start = src_mode->crtc_hblank_start; 2854 dst_mode->crtc_hblank_end = src_mode->crtc_hblank_end; 2855 dst_mode->crtc_hsync_start = src_mode->crtc_hsync_start; 2856 dst_mode->crtc_hsync_end = src_mode->crtc_hsync_end; 2857 dst_mode->crtc_htotal = src_mode->crtc_htotal; 2858 dst_mode->crtc_hskew = src_mode->crtc_hskew; 2859 dst_mode->crtc_vblank_start = src_mode->crtc_vblank_start; 2860 dst_mode->crtc_vblank_end = src_mode->crtc_vblank_end; 2861 dst_mode->crtc_vsync_start = src_mode->crtc_vsync_start; 2862 dst_mode->crtc_vsync_end = src_mode->crtc_vsync_end; 2863 dst_mode->crtc_vtotal = src_mode->crtc_vtotal; 2864 } 2865 2866 static void 2867 decide_crtc_timing_for_drm_display_mode(struct drm_display_mode *drm_mode, 2868 const struct drm_display_mode *native_mode, 2869 bool scale_enabled) 2870 { 2871 if (scale_enabled) { 2872 copy_crtc_timing_for_drm_display_mode(native_mode, drm_mode); 2873 } else if (native_mode->clock == drm_mode->clock && 2874 native_mode->htotal == drm_mode->htotal && 2875 native_mode->vtotal == drm_mode->vtotal) { 2876 copy_crtc_timing_for_drm_display_mode(native_mode, drm_mode); 2877 } else { 2878 /* no scaling nor amdgpu inserted, no need to patch */ 2879 } 2880 } 2881 2882 static struct dc_sink * 2883 create_fake_sink(struct amdgpu_dm_connector *aconnector) 2884 { 2885 struct dc_sink_init_data sink_init_data = { 0 }; 2886 struct dc_sink *sink = NULL; 2887 sink_init_data.link = aconnector->dc_link; 2888 sink_init_data.sink_signal = aconnector->dc_link->connector_signal; 2889 2890 sink = dc_sink_create(&sink_init_data); 2891 if (!sink) { 2892 DRM_ERROR("Failed to create sink!\n"); 2893 return NULL; 2894 } 2895 sink->sink_signal = SIGNAL_TYPE_VIRTUAL; 2896 2897 return sink; 2898 } 2899 2900 static void set_multisync_trigger_params( 2901 struct dc_stream_state *stream) 2902 { 2903 if (stream->triggered_crtc_reset.enabled) { 2904 stream->triggered_crtc_reset.event = CRTC_EVENT_VSYNC_RISING; 2905 stream->triggered_crtc_reset.delay = TRIGGER_DELAY_NEXT_LINE; 2906 } 2907 } 2908 2909 static void set_master_stream(struct dc_stream_state *stream_set[], 2910 int stream_count) 2911 { 2912 int j, highest_rfr = 0, master_stream = 0; 2913 2914 for (j = 0; j < stream_count; j++) { 2915 if (stream_set[j] && stream_set[j]->triggered_crtc_reset.enabled) { 2916 int refresh_rate = 0; 2917 2918 refresh_rate = (stream_set[j]->timing.pix_clk_100hz*100)/ 2919 (stream_set[j]->timing.h_total*stream_set[j]->timing.v_total); 2920 if (refresh_rate > highest_rfr) { 2921 highest_rfr = refresh_rate; 2922 master_stream = j; 2923 } 2924 } 2925 } 2926 for (j = 0; j < stream_count; j++) { 2927 if (stream_set[j]) 2928 stream_set[j]->triggered_crtc_reset.event_source = stream_set[master_stream]; 2929 } 2930 } 2931 2932 static void dm_enable_per_frame_crtc_master_sync(struct dc_state *context) 2933 { 2934 int i = 0; 2935 2936 if (context->stream_count < 2) 2937 return; 2938 for (i = 0; i < context->stream_count ; i++) { 2939 if (!context->streams[i]) 2940 continue; 2941 /* 2942 * TODO: add a function to read AMD VSDB bits and set 2943 * crtc_sync_master.multi_sync_enabled flag 2944 * For now it's set to false 2945 */ 2946 set_multisync_trigger_params(context->streams[i]); 2947 } 2948 set_master_stream(context->streams, context->stream_count); 2949 } 2950 2951 static struct dc_stream_state * 2952 create_stream_for_sink(struct amdgpu_dm_connector *aconnector, 2953 const struct drm_display_mode *drm_mode, 2954 const struct dm_connector_state *dm_state, 2955 const struct dc_stream_state *old_stream) 2956 { 2957 struct drm_display_mode *preferred_mode = NULL; 2958 struct drm_connector *drm_connector; 2959 struct dc_stream_state *stream = NULL; 2960 struct drm_display_mode mode = *drm_mode; 2961 bool native_mode_found = false; 2962 bool scale = dm_state ? (dm_state->scaling != RMX_OFF) : false; 2963 int mode_refresh; 2964 int preferred_refresh = 0; 2965 2966 struct dc_sink *sink = NULL; 2967 if (aconnector == NULL) { 2968 DRM_ERROR("aconnector is NULL!\n"); 2969 return stream; 2970 } 2971 2972 drm_connector = &aconnector->base; 2973 2974 if (!aconnector->dc_sink) { 2975 sink = create_fake_sink(aconnector); 2976 if (!sink) 2977 return stream; 2978 } else { 2979 sink = aconnector->dc_sink; 2980 } 2981 2982 stream = dc_create_stream_for_sink(sink); 2983 2984 if (stream == NULL) { 2985 DRM_ERROR("Failed to create stream for sink!\n"); 2986 goto finish; 2987 } 2988 2989 stream->dm_stream_context = aconnector; 2990 2991 list_for_each_entry(preferred_mode, &aconnector->base.modes, head) { 2992 /* Search for preferred mode */ 2993 if (preferred_mode->type & DRM_MODE_TYPE_PREFERRED) { 2994 native_mode_found = true; 2995 break; 2996 } 2997 } 2998 if (!native_mode_found) 2999 preferred_mode = list_first_entry_or_null( 3000 &aconnector->base.modes, 3001 struct drm_display_mode, 3002 head); 3003 3004 mode_refresh = drm_mode_vrefresh(&mode); 3005 3006 if (preferred_mode == NULL) { 3007 /* 3008 * This may not be an error, the use case is when we have no 3009 * usermode calls to reset and set mode upon hotplug. In this 3010 * case, we call set mode ourselves to restore the previous mode 3011 * and the modelist may not be filled in in time. 3012 */ 3013 DRM_DEBUG_DRIVER("No preferred mode found\n"); 3014 } else { 3015 decide_crtc_timing_for_drm_display_mode( 3016 &mode, preferred_mode, 3017 dm_state ? (dm_state->scaling != RMX_OFF) : false); 3018 preferred_refresh = drm_mode_vrefresh(preferred_mode); 3019 } 3020 3021 if (!dm_state) 3022 drm_mode_set_crtcinfo(&mode, 0); 3023 3024 /* 3025 * If scaling is enabled and refresh rate didn't change 3026 * we copy the vic and polarities of the old timings 3027 */ 3028 if (!scale || mode_refresh != preferred_refresh) 3029 fill_stream_properties_from_drm_display_mode(stream, 3030 &mode, &aconnector->base, NULL); 3031 else 3032 fill_stream_properties_from_drm_display_mode(stream, 3033 &mode, &aconnector->base, old_stream); 3034 3035 update_stream_scaling_settings(&mode, dm_state, stream); 3036 3037 fill_audio_info( 3038 &stream->audio_info, 3039 drm_connector, 3040 sink); 3041 3042 update_stream_signal(stream, sink); 3043 3044 finish: 3045 if (sink && sink->sink_signal == SIGNAL_TYPE_VIRTUAL && aconnector->base.force != DRM_FORCE_ON) 3046 dc_sink_release(sink); 3047 3048 return stream; 3049 } 3050 3051 static void amdgpu_dm_crtc_destroy(struct drm_crtc *crtc) 3052 { 3053 drm_crtc_cleanup(crtc); 3054 kfree(crtc); 3055 } 3056 3057 static void dm_crtc_destroy_state(struct drm_crtc *crtc, 3058 struct drm_crtc_state *state) 3059 { 3060 struct dm_crtc_state *cur = to_dm_crtc_state(state); 3061 3062 /* TODO Destroy dc_stream objects are stream object is flattened */ 3063 if (cur->stream) 3064 dc_stream_release(cur->stream); 3065 3066 3067 __drm_atomic_helper_crtc_destroy_state(state); 3068 3069 3070 kfree(state); 3071 } 3072 3073 static void dm_crtc_reset_state(struct drm_crtc *crtc) 3074 { 3075 struct dm_crtc_state *state; 3076 3077 if (crtc->state) 3078 dm_crtc_destroy_state(crtc, crtc->state); 3079 3080 state = kzalloc(sizeof(*state), GFP_KERNEL); 3081 if (WARN_ON(!state)) 3082 return; 3083 3084 crtc->state = &state->base; 3085 crtc->state->crtc = crtc; 3086 3087 } 3088 3089 static struct drm_crtc_state * 3090 dm_crtc_duplicate_state(struct drm_crtc *crtc) 3091 { 3092 struct dm_crtc_state *state, *cur; 3093 3094 cur = to_dm_crtc_state(crtc->state); 3095 3096 if (WARN_ON(!crtc->state)) 3097 return NULL; 3098 3099 state = kzalloc(sizeof(*state), GFP_KERNEL); 3100 if (!state) 3101 return NULL; 3102 3103 __drm_atomic_helper_crtc_duplicate_state(crtc, &state->base); 3104 3105 if (cur->stream) { 3106 state->stream = cur->stream; 3107 dc_stream_retain(state->stream); 3108 } 3109 3110 state->vrr_params = cur->vrr_params; 3111 state->vrr_infopacket = cur->vrr_infopacket; 3112 state->abm_level = cur->abm_level; 3113 state->vrr_supported = cur->vrr_supported; 3114 state->freesync_config = cur->freesync_config; 3115 state->crc_enabled = cur->crc_enabled; 3116 3117 /* TODO Duplicate dc_stream after objects are stream object is flattened */ 3118 3119 return &state->base; 3120 } 3121 3122 3123 static inline int dm_set_vblank(struct drm_crtc *crtc, bool enable) 3124 { 3125 enum dc_irq_source irq_source; 3126 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc); 3127 struct amdgpu_device *adev = crtc->dev->dev_private; 3128 3129 irq_source = IRQ_TYPE_VBLANK + acrtc->otg_inst; 3130 return dc_interrupt_set(adev->dm.dc, irq_source, enable) ? 0 : -EBUSY; 3131 } 3132 3133 static int dm_enable_vblank(struct drm_crtc *crtc) 3134 { 3135 return dm_set_vblank(crtc, true); 3136 } 3137 3138 static void dm_disable_vblank(struct drm_crtc *crtc) 3139 { 3140 dm_set_vblank(crtc, false); 3141 } 3142 3143 /* Implemented only the options currently availible for the driver */ 3144 static const struct drm_crtc_funcs amdgpu_dm_crtc_funcs = { 3145 .reset = dm_crtc_reset_state, 3146 .destroy = amdgpu_dm_crtc_destroy, 3147 .gamma_set = drm_atomic_helper_legacy_gamma_set, 3148 .set_config = drm_atomic_helper_set_config, 3149 .page_flip = drm_atomic_helper_page_flip, 3150 .atomic_duplicate_state = dm_crtc_duplicate_state, 3151 .atomic_destroy_state = dm_crtc_destroy_state, 3152 .set_crc_source = amdgpu_dm_crtc_set_crc_source, 3153 .verify_crc_source = amdgpu_dm_crtc_verify_crc_source, 3154 .enable_vblank = dm_enable_vblank, 3155 .disable_vblank = dm_disable_vblank, 3156 }; 3157 3158 static enum drm_connector_status 3159 amdgpu_dm_connector_detect(struct drm_connector *connector, bool force) 3160 { 3161 bool connected; 3162 struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector); 3163 3164 /* 3165 * Notes: 3166 * 1. This interface is NOT called in context of HPD irq. 3167 * 2. This interface *is called* in context of user-mode ioctl. Which 3168 * makes it a bad place for *any* MST-related activity. 3169 */ 3170 3171 if (aconnector->base.force == DRM_FORCE_UNSPECIFIED && 3172 !aconnector->fake_enable) 3173 connected = (aconnector->dc_sink != NULL); 3174 else 3175 connected = (aconnector->base.force == DRM_FORCE_ON); 3176 3177 return (connected ? connector_status_connected : 3178 connector_status_disconnected); 3179 } 3180 3181 int amdgpu_dm_connector_atomic_set_property(struct drm_connector *connector, 3182 struct drm_connector_state *connector_state, 3183 struct drm_property *property, 3184 uint64_t val) 3185 { 3186 struct drm_device *dev = connector->dev; 3187 struct amdgpu_device *adev = dev->dev_private; 3188 struct dm_connector_state *dm_old_state = 3189 to_dm_connector_state(connector->state); 3190 struct dm_connector_state *dm_new_state = 3191 to_dm_connector_state(connector_state); 3192 3193 int ret = -EINVAL; 3194 3195 if (property == dev->mode_config.scaling_mode_property) { 3196 enum amdgpu_rmx_type rmx_type; 3197 3198 switch (val) { 3199 case DRM_MODE_SCALE_CENTER: 3200 rmx_type = RMX_CENTER; 3201 break; 3202 case DRM_MODE_SCALE_ASPECT: 3203 rmx_type = RMX_ASPECT; 3204 break; 3205 case DRM_MODE_SCALE_FULLSCREEN: 3206 rmx_type = RMX_FULL; 3207 break; 3208 case DRM_MODE_SCALE_NONE: 3209 default: 3210 rmx_type = RMX_OFF; 3211 break; 3212 } 3213 3214 if (dm_old_state->scaling == rmx_type) 3215 return 0; 3216 3217 dm_new_state->scaling = rmx_type; 3218 ret = 0; 3219 } else if (property == adev->mode_info.underscan_hborder_property) { 3220 dm_new_state->underscan_hborder = val; 3221 ret = 0; 3222 } else if (property == adev->mode_info.underscan_vborder_property) { 3223 dm_new_state->underscan_vborder = val; 3224 ret = 0; 3225 } else if (property == adev->mode_info.underscan_property) { 3226 dm_new_state->underscan_enable = val; 3227 ret = 0; 3228 } else if (property == adev->mode_info.max_bpc_property) { 3229 dm_new_state->max_bpc = val; 3230 ret = 0; 3231 } else if (property == adev->mode_info.abm_level_property) { 3232 dm_new_state->abm_level = val; 3233 ret = 0; 3234 } 3235 3236 return ret; 3237 } 3238 3239 int amdgpu_dm_connector_atomic_get_property(struct drm_connector *connector, 3240 const struct drm_connector_state *state, 3241 struct drm_property *property, 3242 uint64_t *val) 3243 { 3244 struct drm_device *dev = connector->dev; 3245 struct amdgpu_device *adev = dev->dev_private; 3246 struct dm_connector_state *dm_state = 3247 to_dm_connector_state(state); 3248 int ret = -EINVAL; 3249 3250 if (property == dev->mode_config.scaling_mode_property) { 3251 switch (dm_state->scaling) { 3252 case RMX_CENTER: 3253 *val = DRM_MODE_SCALE_CENTER; 3254 break; 3255 case RMX_ASPECT: 3256 *val = DRM_MODE_SCALE_ASPECT; 3257 break; 3258 case RMX_FULL: 3259 *val = DRM_MODE_SCALE_FULLSCREEN; 3260 break; 3261 case RMX_OFF: 3262 default: 3263 *val = DRM_MODE_SCALE_NONE; 3264 break; 3265 } 3266 ret = 0; 3267 } else if (property == adev->mode_info.underscan_hborder_property) { 3268 *val = dm_state->underscan_hborder; 3269 ret = 0; 3270 } else if (property == adev->mode_info.underscan_vborder_property) { 3271 *val = dm_state->underscan_vborder; 3272 ret = 0; 3273 } else if (property == adev->mode_info.underscan_property) { 3274 *val = dm_state->underscan_enable; 3275 ret = 0; 3276 } else if (property == adev->mode_info.max_bpc_property) { 3277 *val = dm_state->max_bpc; 3278 ret = 0; 3279 } else if (property == adev->mode_info.abm_level_property) { 3280 *val = dm_state->abm_level; 3281 ret = 0; 3282 } 3283 3284 return ret; 3285 } 3286 3287 static void amdgpu_dm_connector_destroy(struct drm_connector *connector) 3288 { 3289 struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector); 3290 const struct dc_link *link = aconnector->dc_link; 3291 struct amdgpu_device *adev = connector->dev->dev_private; 3292 struct amdgpu_display_manager *dm = &adev->dm; 3293 3294 #if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) ||\ 3295 defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE) 3296 3297 if ((link->connector_signal & (SIGNAL_TYPE_EDP | SIGNAL_TYPE_LVDS)) && 3298 link->type != dc_connection_none && 3299 dm->backlight_dev) { 3300 backlight_device_unregister(dm->backlight_dev); 3301 dm->backlight_dev = NULL; 3302 } 3303 #endif 3304 drm_dp_cec_unregister_connector(&aconnector->dm_dp_aux.aux); 3305 drm_connector_unregister(connector); 3306 drm_connector_cleanup(connector); 3307 kfree(connector); 3308 } 3309 3310 void amdgpu_dm_connector_funcs_reset(struct drm_connector *connector) 3311 { 3312 struct dm_connector_state *state = 3313 to_dm_connector_state(connector->state); 3314 3315 if (connector->state) 3316 __drm_atomic_helper_connector_destroy_state(connector->state); 3317 3318 kfree(state); 3319 3320 state = kzalloc(sizeof(*state), GFP_KERNEL); 3321 3322 if (state) { 3323 state->scaling = RMX_OFF; 3324 state->underscan_enable = false; 3325 state->underscan_hborder = 0; 3326 state->underscan_vborder = 0; 3327 state->max_bpc = 8; 3328 3329 __drm_atomic_helper_connector_reset(connector, &state->base); 3330 } 3331 } 3332 3333 struct drm_connector_state * 3334 amdgpu_dm_connector_atomic_duplicate_state(struct drm_connector *connector) 3335 { 3336 struct dm_connector_state *state = 3337 to_dm_connector_state(connector->state); 3338 3339 struct dm_connector_state *new_state = 3340 kmemdup(state, sizeof(*state), GFP_KERNEL); 3341 3342 if (!new_state) 3343 return NULL; 3344 3345 __drm_atomic_helper_connector_duplicate_state(connector, &new_state->base); 3346 3347 new_state->freesync_capable = state->freesync_capable; 3348 new_state->abm_level = state->abm_level; 3349 new_state->scaling = state->scaling; 3350 new_state->underscan_enable = state->underscan_enable; 3351 new_state->underscan_hborder = state->underscan_hborder; 3352 new_state->underscan_vborder = state->underscan_vborder; 3353 new_state->max_bpc = state->max_bpc; 3354 3355 return &new_state->base; 3356 } 3357 3358 static const struct drm_connector_funcs amdgpu_dm_connector_funcs = { 3359 .reset = amdgpu_dm_connector_funcs_reset, 3360 .detect = amdgpu_dm_connector_detect, 3361 .fill_modes = drm_helper_probe_single_connector_modes, 3362 .destroy = amdgpu_dm_connector_destroy, 3363 .atomic_duplicate_state = amdgpu_dm_connector_atomic_duplicate_state, 3364 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, 3365 .atomic_set_property = amdgpu_dm_connector_atomic_set_property, 3366 .atomic_get_property = amdgpu_dm_connector_atomic_get_property 3367 }; 3368 3369 static int get_modes(struct drm_connector *connector) 3370 { 3371 return amdgpu_dm_connector_get_modes(connector); 3372 } 3373 3374 static void create_eml_sink(struct amdgpu_dm_connector *aconnector) 3375 { 3376 struct dc_sink_init_data init_params = { 3377 .link = aconnector->dc_link, 3378 .sink_signal = SIGNAL_TYPE_VIRTUAL 3379 }; 3380 struct edid *edid; 3381 3382 if (!aconnector->base.edid_blob_ptr) { 3383 DRM_ERROR("No EDID firmware found on connector: %s ,forcing to OFF!\n", 3384 aconnector->base.name); 3385 3386 aconnector->base.force = DRM_FORCE_OFF; 3387 aconnector->base.override_edid = false; 3388 return; 3389 } 3390 3391 edid = (struct edid *) aconnector->base.edid_blob_ptr->data; 3392 3393 aconnector->edid = edid; 3394 3395 aconnector->dc_em_sink = dc_link_add_remote_sink( 3396 aconnector->dc_link, 3397 (uint8_t *)edid, 3398 (edid->extensions + 1) * EDID_LENGTH, 3399 &init_params); 3400 3401 if (aconnector->base.force == DRM_FORCE_ON) 3402 aconnector->dc_sink = aconnector->dc_link->local_sink ? 3403 aconnector->dc_link->local_sink : 3404 aconnector->dc_em_sink; 3405 } 3406 3407 static void handle_edid_mgmt(struct amdgpu_dm_connector *aconnector) 3408 { 3409 struct dc_link *link = (struct dc_link *)aconnector->dc_link; 3410 3411 /* 3412 * In case of headless boot with force on for DP managed connector 3413 * Those settings have to be != 0 to get initial modeset 3414 */ 3415 if (link->connector_signal == SIGNAL_TYPE_DISPLAY_PORT) { 3416 link->verified_link_cap.lane_count = LANE_COUNT_FOUR; 3417 link->verified_link_cap.link_rate = LINK_RATE_HIGH2; 3418 } 3419 3420 3421 aconnector->base.override_edid = true; 3422 create_eml_sink(aconnector); 3423 } 3424 3425 enum drm_mode_status amdgpu_dm_connector_mode_valid(struct drm_connector *connector, 3426 struct drm_display_mode *mode) 3427 { 3428 int result = MODE_ERROR; 3429 struct dc_sink *dc_sink; 3430 struct amdgpu_device *adev = connector->dev->dev_private; 3431 /* TODO: Unhardcode stream count */ 3432 struct dc_stream_state *stream; 3433 struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector); 3434 enum dc_status dc_result = DC_OK; 3435 3436 if ((mode->flags & DRM_MODE_FLAG_INTERLACE) || 3437 (mode->flags & DRM_MODE_FLAG_DBLSCAN)) 3438 return result; 3439 3440 /* 3441 * Only run this the first time mode_valid is called to initilialize 3442 * EDID mgmt 3443 */ 3444 if (aconnector->base.force != DRM_FORCE_UNSPECIFIED && 3445 !aconnector->dc_em_sink) 3446 handle_edid_mgmt(aconnector); 3447 3448 dc_sink = to_amdgpu_dm_connector(connector)->dc_sink; 3449 3450 if (dc_sink == NULL) { 3451 DRM_ERROR("dc_sink is NULL!\n"); 3452 goto fail; 3453 } 3454 3455 stream = create_stream_for_sink(aconnector, mode, NULL, NULL); 3456 if (stream == NULL) { 3457 DRM_ERROR("Failed to create stream for sink!\n"); 3458 goto fail; 3459 } 3460 3461 dc_result = dc_validate_stream(adev->dm.dc, stream); 3462 3463 if (dc_result == DC_OK) 3464 result = MODE_OK; 3465 else 3466 DRM_DEBUG_KMS("Mode %dx%d (clk %d) failed DC validation with error %d\n", 3467 mode->vdisplay, 3468 mode->hdisplay, 3469 mode->clock, 3470 dc_result); 3471 3472 dc_stream_release(stream); 3473 3474 fail: 3475 /* TODO: error handling*/ 3476 return result; 3477 } 3478 3479 static const struct drm_connector_helper_funcs 3480 amdgpu_dm_connector_helper_funcs = { 3481 /* 3482 * If hotplugging a second bigger display in FB Con mode, bigger resolution 3483 * modes will be filtered by drm_mode_validate_size(), and those modes 3484 * are missing after user start lightdm. So we need to renew modes list. 3485 * in get_modes call back, not just return the modes count 3486 */ 3487 .get_modes = get_modes, 3488 .mode_valid = amdgpu_dm_connector_mode_valid, 3489 }; 3490 3491 static void dm_crtc_helper_disable(struct drm_crtc *crtc) 3492 { 3493 } 3494 3495 static int dm_crtc_helper_atomic_check(struct drm_crtc *crtc, 3496 struct drm_crtc_state *state) 3497 { 3498 struct amdgpu_device *adev = crtc->dev->dev_private; 3499 struct dc *dc = adev->dm.dc; 3500 struct dm_crtc_state *dm_crtc_state = to_dm_crtc_state(state); 3501 int ret = -EINVAL; 3502 3503 if (unlikely(!dm_crtc_state->stream && 3504 modeset_required(state, NULL, dm_crtc_state->stream))) { 3505 WARN_ON(1); 3506 return ret; 3507 } 3508 3509 /* In some use cases, like reset, no stream is attached */ 3510 if (!dm_crtc_state->stream) 3511 return 0; 3512 3513 if (dc_validate_stream(dc, dm_crtc_state->stream) == DC_OK) 3514 return 0; 3515 3516 return ret; 3517 } 3518 3519 static bool dm_crtc_helper_mode_fixup(struct drm_crtc *crtc, 3520 const struct drm_display_mode *mode, 3521 struct drm_display_mode *adjusted_mode) 3522 { 3523 return true; 3524 } 3525 3526 static const struct drm_crtc_helper_funcs amdgpu_dm_crtc_helper_funcs = { 3527 .disable = dm_crtc_helper_disable, 3528 .atomic_check = dm_crtc_helper_atomic_check, 3529 .mode_fixup = dm_crtc_helper_mode_fixup 3530 }; 3531 3532 static void dm_encoder_helper_disable(struct drm_encoder *encoder) 3533 { 3534 3535 } 3536 3537 static int dm_encoder_helper_atomic_check(struct drm_encoder *encoder, 3538 struct drm_crtc_state *crtc_state, 3539 struct drm_connector_state *conn_state) 3540 { 3541 return 0; 3542 } 3543 3544 const struct drm_encoder_helper_funcs amdgpu_dm_encoder_helper_funcs = { 3545 .disable = dm_encoder_helper_disable, 3546 .atomic_check = dm_encoder_helper_atomic_check 3547 }; 3548 3549 static void dm_drm_plane_reset(struct drm_plane *plane) 3550 { 3551 struct dm_plane_state *amdgpu_state = NULL; 3552 3553 if (plane->state) 3554 plane->funcs->atomic_destroy_state(plane, plane->state); 3555 3556 amdgpu_state = kzalloc(sizeof(*amdgpu_state), GFP_KERNEL); 3557 WARN_ON(amdgpu_state == NULL); 3558 3559 if (amdgpu_state) { 3560 plane->state = &amdgpu_state->base; 3561 plane->state->plane = plane; 3562 plane->state->rotation = DRM_MODE_ROTATE_0; 3563 } 3564 } 3565 3566 static struct drm_plane_state * 3567 dm_drm_plane_duplicate_state(struct drm_plane *plane) 3568 { 3569 struct dm_plane_state *dm_plane_state, *old_dm_plane_state; 3570 3571 old_dm_plane_state = to_dm_plane_state(plane->state); 3572 dm_plane_state = kzalloc(sizeof(*dm_plane_state), GFP_KERNEL); 3573 if (!dm_plane_state) 3574 return NULL; 3575 3576 __drm_atomic_helper_plane_duplicate_state(plane, &dm_plane_state->base); 3577 3578 if (old_dm_plane_state->dc_state) { 3579 dm_plane_state->dc_state = old_dm_plane_state->dc_state; 3580 dc_plane_state_retain(dm_plane_state->dc_state); 3581 } 3582 3583 return &dm_plane_state->base; 3584 } 3585 3586 void dm_drm_plane_destroy_state(struct drm_plane *plane, 3587 struct drm_plane_state *state) 3588 { 3589 struct dm_plane_state *dm_plane_state = to_dm_plane_state(state); 3590 3591 if (dm_plane_state->dc_state) 3592 dc_plane_state_release(dm_plane_state->dc_state); 3593 3594 drm_atomic_helper_plane_destroy_state(plane, state); 3595 } 3596 3597 static const struct drm_plane_funcs dm_plane_funcs = { 3598 .update_plane = drm_atomic_helper_update_plane, 3599 .disable_plane = drm_atomic_helper_disable_plane, 3600 .destroy = drm_primary_helper_destroy, 3601 .reset = dm_drm_plane_reset, 3602 .atomic_duplicate_state = dm_drm_plane_duplicate_state, 3603 .atomic_destroy_state = dm_drm_plane_destroy_state, 3604 }; 3605 3606 static int dm_plane_helper_prepare_fb(struct drm_plane *plane, 3607 struct drm_plane_state *new_state) 3608 { 3609 struct amdgpu_framebuffer *afb; 3610 struct drm_gem_object *obj; 3611 struct amdgpu_device *adev; 3612 struct amdgpu_bo *rbo; 3613 uint64_t chroma_addr = 0; 3614 struct dm_plane_state *dm_plane_state_new, *dm_plane_state_old; 3615 uint64_t tiling_flags, dcc_address; 3616 unsigned int awidth; 3617 uint32_t domain; 3618 int r; 3619 3620 dm_plane_state_old = to_dm_plane_state(plane->state); 3621 dm_plane_state_new = to_dm_plane_state(new_state); 3622 3623 if (!new_state->fb) { 3624 DRM_DEBUG_DRIVER("No FB bound\n"); 3625 return 0; 3626 } 3627 3628 afb = to_amdgpu_framebuffer(new_state->fb); 3629 obj = new_state->fb->obj[0]; 3630 rbo = gem_to_amdgpu_bo(obj); 3631 adev = amdgpu_ttm_adev(rbo->tbo.bdev); 3632 r = amdgpu_bo_reserve(rbo, false); 3633 if (unlikely(r != 0)) 3634 return r; 3635 3636 if (plane->type != DRM_PLANE_TYPE_CURSOR) 3637 domain = amdgpu_display_supported_domains(adev); 3638 else 3639 domain = AMDGPU_GEM_DOMAIN_VRAM; 3640 3641 r = amdgpu_bo_pin(rbo, domain); 3642 if (unlikely(r != 0)) { 3643 if (r != -ERESTARTSYS) 3644 DRM_ERROR("Failed to pin framebuffer with error %d\n", r); 3645 amdgpu_bo_unreserve(rbo); 3646 return r; 3647 } 3648 3649 r = amdgpu_ttm_alloc_gart(&rbo->tbo); 3650 if (unlikely(r != 0)) { 3651 amdgpu_bo_unpin(rbo); 3652 amdgpu_bo_unreserve(rbo); 3653 DRM_ERROR("%p bind failed\n", rbo); 3654 return r; 3655 } 3656 3657 amdgpu_bo_get_tiling_flags(rbo, &tiling_flags); 3658 3659 amdgpu_bo_unreserve(rbo); 3660 3661 afb->address = amdgpu_bo_gpu_offset(rbo); 3662 3663 amdgpu_bo_ref(rbo); 3664 3665 if (dm_plane_state_new->dc_state && 3666 dm_plane_state_old->dc_state != dm_plane_state_new->dc_state) { 3667 struct dc_plane_state *plane_state = dm_plane_state_new->dc_state; 3668 3669 if (plane_state->format < SURFACE_PIXEL_FORMAT_VIDEO_BEGIN) { 3670 plane_state->address.grph.addr.low_part = lower_32_bits(afb->address); 3671 plane_state->address.grph.addr.high_part = upper_32_bits(afb->address); 3672 3673 dcc_address = 3674 get_dcc_address(afb->address, tiling_flags); 3675 plane_state->address.grph.meta_addr.low_part = 3676 lower_32_bits(dcc_address); 3677 plane_state->address.grph.meta_addr.high_part = 3678 upper_32_bits(dcc_address); 3679 } else { 3680 awidth = ALIGN(new_state->fb->width, 64); 3681 plane_state->address.type = PLN_ADDR_TYPE_VIDEO_PROGRESSIVE; 3682 plane_state->address.video_progressive.luma_addr.low_part 3683 = lower_32_bits(afb->address); 3684 plane_state->address.video_progressive.luma_addr.high_part 3685 = upper_32_bits(afb->address); 3686 chroma_addr = afb->address + (u64)awidth * new_state->fb->height; 3687 plane_state->address.video_progressive.chroma_addr.low_part 3688 = lower_32_bits(chroma_addr); 3689 plane_state->address.video_progressive.chroma_addr.high_part 3690 = upper_32_bits(chroma_addr); 3691 } 3692 } 3693 3694 return 0; 3695 } 3696 3697 static void dm_plane_helper_cleanup_fb(struct drm_plane *plane, 3698 struct drm_plane_state *old_state) 3699 { 3700 struct amdgpu_bo *rbo; 3701 int r; 3702 3703 if (!old_state->fb) 3704 return; 3705 3706 rbo = gem_to_amdgpu_bo(old_state->fb->obj[0]); 3707 r = amdgpu_bo_reserve(rbo, false); 3708 if (unlikely(r)) { 3709 DRM_ERROR("failed to reserve rbo before unpin\n"); 3710 return; 3711 } 3712 3713 amdgpu_bo_unpin(rbo); 3714 amdgpu_bo_unreserve(rbo); 3715 amdgpu_bo_unref(&rbo); 3716 } 3717 3718 static int dm_plane_atomic_check(struct drm_plane *plane, 3719 struct drm_plane_state *state) 3720 { 3721 struct amdgpu_device *adev = plane->dev->dev_private; 3722 struct dc *dc = adev->dm.dc; 3723 struct dm_plane_state *dm_plane_state = to_dm_plane_state(state); 3724 3725 if (!dm_plane_state->dc_state) 3726 return 0; 3727 3728 if (!fill_rects_from_plane_state(state, dm_plane_state->dc_state)) 3729 return -EINVAL; 3730 3731 if (dc_validate_plane(dc, dm_plane_state->dc_state) == DC_OK) 3732 return 0; 3733 3734 return -EINVAL; 3735 } 3736 3737 static int dm_plane_atomic_async_check(struct drm_plane *plane, 3738 struct drm_plane_state *new_plane_state) 3739 { 3740 struct drm_plane_state *old_plane_state = 3741 drm_atomic_get_old_plane_state(new_plane_state->state, plane); 3742 3743 /* Only support async updates on cursor planes. */ 3744 if (plane->type != DRM_PLANE_TYPE_CURSOR) 3745 return -EINVAL; 3746 3747 /* 3748 * DRM calls prepare_fb and cleanup_fb on new_plane_state for 3749 * async commits so don't allow fb changes. 3750 */ 3751 if (old_plane_state->fb != new_plane_state->fb) 3752 return -EINVAL; 3753 3754 return 0; 3755 } 3756 3757 static void dm_plane_atomic_async_update(struct drm_plane *plane, 3758 struct drm_plane_state *new_state) 3759 { 3760 struct drm_plane_state *old_state = 3761 drm_atomic_get_old_plane_state(new_state->state, plane); 3762 3763 if (plane->state->fb != new_state->fb) 3764 drm_atomic_set_fb_for_plane(plane->state, new_state->fb); 3765 3766 plane->state->src_x = new_state->src_x; 3767 plane->state->src_y = new_state->src_y; 3768 plane->state->src_w = new_state->src_w; 3769 plane->state->src_h = new_state->src_h; 3770 plane->state->crtc_x = new_state->crtc_x; 3771 plane->state->crtc_y = new_state->crtc_y; 3772 plane->state->crtc_w = new_state->crtc_w; 3773 plane->state->crtc_h = new_state->crtc_h; 3774 3775 handle_cursor_update(plane, old_state); 3776 } 3777 3778 static const struct drm_plane_helper_funcs dm_plane_helper_funcs = { 3779 .prepare_fb = dm_plane_helper_prepare_fb, 3780 .cleanup_fb = dm_plane_helper_cleanup_fb, 3781 .atomic_check = dm_plane_atomic_check, 3782 .atomic_async_check = dm_plane_atomic_async_check, 3783 .atomic_async_update = dm_plane_atomic_async_update 3784 }; 3785 3786 /* 3787 * TODO: these are currently initialized to rgb formats only. 3788 * For future use cases we should either initialize them dynamically based on 3789 * plane capabilities, or initialize this array to all formats, so internal drm 3790 * check will succeed, and let DC implement proper check 3791 */ 3792 static const uint32_t rgb_formats[] = { 3793 DRM_FORMAT_RGB888, 3794 DRM_FORMAT_XRGB8888, 3795 DRM_FORMAT_ARGB8888, 3796 DRM_FORMAT_RGBA8888, 3797 DRM_FORMAT_XRGB2101010, 3798 DRM_FORMAT_XBGR2101010, 3799 DRM_FORMAT_ARGB2101010, 3800 DRM_FORMAT_ABGR2101010, 3801 DRM_FORMAT_XBGR8888, 3802 DRM_FORMAT_ABGR8888, 3803 }; 3804 3805 static const uint32_t yuv_formats[] = { 3806 DRM_FORMAT_NV12, 3807 DRM_FORMAT_NV21, 3808 }; 3809 3810 static const u32 cursor_formats[] = { 3811 DRM_FORMAT_ARGB8888 3812 }; 3813 3814 static int amdgpu_dm_plane_init(struct amdgpu_display_manager *dm, 3815 struct drm_plane *plane, 3816 unsigned long possible_crtcs) 3817 { 3818 int res = -EPERM; 3819 3820 switch (plane->type) { 3821 case DRM_PLANE_TYPE_PRIMARY: 3822 res = drm_universal_plane_init( 3823 dm->adev->ddev, 3824 plane, 3825 possible_crtcs, 3826 &dm_plane_funcs, 3827 rgb_formats, 3828 ARRAY_SIZE(rgb_formats), 3829 NULL, plane->type, NULL); 3830 break; 3831 case DRM_PLANE_TYPE_OVERLAY: 3832 res = drm_universal_plane_init( 3833 dm->adev->ddev, 3834 plane, 3835 possible_crtcs, 3836 &dm_plane_funcs, 3837 yuv_formats, 3838 ARRAY_SIZE(yuv_formats), 3839 NULL, plane->type, NULL); 3840 break; 3841 case DRM_PLANE_TYPE_CURSOR: 3842 res = drm_universal_plane_init( 3843 dm->adev->ddev, 3844 plane, 3845 possible_crtcs, 3846 &dm_plane_funcs, 3847 cursor_formats, 3848 ARRAY_SIZE(cursor_formats), 3849 NULL, plane->type, NULL); 3850 break; 3851 } 3852 3853 drm_plane_helper_add(plane, &dm_plane_helper_funcs); 3854 3855 /* Create (reset) the plane state */ 3856 if (plane->funcs->reset) 3857 plane->funcs->reset(plane); 3858 3859 3860 return res; 3861 } 3862 3863 static int amdgpu_dm_crtc_init(struct amdgpu_display_manager *dm, 3864 struct drm_plane *plane, 3865 uint32_t crtc_index) 3866 { 3867 struct amdgpu_crtc *acrtc = NULL; 3868 struct drm_plane *cursor_plane; 3869 3870 int res = -ENOMEM; 3871 3872 cursor_plane = kzalloc(sizeof(*cursor_plane), GFP_KERNEL); 3873 if (!cursor_plane) 3874 goto fail; 3875 3876 cursor_plane->type = DRM_PLANE_TYPE_CURSOR; 3877 res = amdgpu_dm_plane_init(dm, cursor_plane, 0); 3878 3879 acrtc = kzalloc(sizeof(struct amdgpu_crtc), GFP_KERNEL); 3880 if (!acrtc) 3881 goto fail; 3882 3883 res = drm_crtc_init_with_planes( 3884 dm->ddev, 3885 &acrtc->base, 3886 plane, 3887 cursor_plane, 3888 &amdgpu_dm_crtc_funcs, NULL); 3889 3890 if (res) 3891 goto fail; 3892 3893 drm_crtc_helper_add(&acrtc->base, &amdgpu_dm_crtc_helper_funcs); 3894 3895 /* Create (reset) the plane state */ 3896 if (acrtc->base.funcs->reset) 3897 acrtc->base.funcs->reset(&acrtc->base); 3898 3899 acrtc->max_cursor_width = dm->adev->dm.dc->caps.max_cursor_size; 3900 acrtc->max_cursor_height = dm->adev->dm.dc->caps.max_cursor_size; 3901 3902 acrtc->crtc_id = crtc_index; 3903 acrtc->base.enabled = false; 3904 acrtc->otg_inst = -1; 3905 3906 dm->adev->mode_info.crtcs[crtc_index] = acrtc; 3907 drm_crtc_enable_color_mgmt(&acrtc->base, MAX_COLOR_LUT_ENTRIES, 3908 true, MAX_COLOR_LUT_ENTRIES); 3909 drm_mode_crtc_set_gamma_size(&acrtc->base, MAX_COLOR_LEGACY_LUT_ENTRIES); 3910 3911 return 0; 3912 3913 fail: 3914 kfree(acrtc); 3915 kfree(cursor_plane); 3916 return res; 3917 } 3918 3919 3920 static int to_drm_connector_type(enum signal_type st) 3921 { 3922 switch (st) { 3923 case SIGNAL_TYPE_HDMI_TYPE_A: 3924 return DRM_MODE_CONNECTOR_HDMIA; 3925 case SIGNAL_TYPE_EDP: 3926 return DRM_MODE_CONNECTOR_eDP; 3927 case SIGNAL_TYPE_LVDS: 3928 return DRM_MODE_CONNECTOR_LVDS; 3929 case SIGNAL_TYPE_RGB: 3930 return DRM_MODE_CONNECTOR_VGA; 3931 case SIGNAL_TYPE_DISPLAY_PORT: 3932 case SIGNAL_TYPE_DISPLAY_PORT_MST: 3933 return DRM_MODE_CONNECTOR_DisplayPort; 3934 case SIGNAL_TYPE_DVI_DUAL_LINK: 3935 case SIGNAL_TYPE_DVI_SINGLE_LINK: 3936 return DRM_MODE_CONNECTOR_DVID; 3937 case SIGNAL_TYPE_VIRTUAL: 3938 return DRM_MODE_CONNECTOR_VIRTUAL; 3939 3940 default: 3941 return DRM_MODE_CONNECTOR_Unknown; 3942 } 3943 } 3944 3945 static struct drm_encoder *amdgpu_dm_connector_to_encoder(struct drm_connector *connector) 3946 { 3947 return drm_encoder_find(connector->dev, NULL, connector->encoder_ids[0]); 3948 } 3949 3950 static void amdgpu_dm_get_native_mode(struct drm_connector *connector) 3951 { 3952 struct drm_encoder *encoder; 3953 struct amdgpu_encoder *amdgpu_encoder; 3954 3955 encoder = amdgpu_dm_connector_to_encoder(connector); 3956 3957 if (encoder == NULL) 3958 return; 3959 3960 amdgpu_encoder = to_amdgpu_encoder(encoder); 3961 3962 amdgpu_encoder->native_mode.clock = 0; 3963 3964 if (!list_empty(&connector->probed_modes)) { 3965 struct drm_display_mode *preferred_mode = NULL; 3966 3967 list_for_each_entry(preferred_mode, 3968 &connector->probed_modes, 3969 head) { 3970 if (preferred_mode->type & DRM_MODE_TYPE_PREFERRED) 3971 amdgpu_encoder->native_mode = *preferred_mode; 3972 3973 break; 3974 } 3975 3976 } 3977 } 3978 3979 static struct drm_display_mode * 3980 amdgpu_dm_create_common_mode(struct drm_encoder *encoder, 3981 char *name, 3982 int hdisplay, int vdisplay) 3983 { 3984 struct drm_device *dev = encoder->dev; 3985 struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder); 3986 struct drm_display_mode *mode = NULL; 3987 struct drm_display_mode *native_mode = &amdgpu_encoder->native_mode; 3988 3989 mode = drm_mode_duplicate(dev, native_mode); 3990 3991 if (mode == NULL) 3992 return NULL; 3993 3994 mode->hdisplay = hdisplay; 3995 mode->vdisplay = vdisplay; 3996 mode->type &= ~DRM_MODE_TYPE_PREFERRED; 3997 strscpy(mode->name, name, DRM_DISPLAY_MODE_LEN); 3998 3999 return mode; 4000 4001 } 4002 4003 static void amdgpu_dm_connector_add_common_modes(struct drm_encoder *encoder, 4004 struct drm_connector *connector) 4005 { 4006 struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder); 4007 struct drm_display_mode *mode = NULL; 4008 struct drm_display_mode *native_mode = &amdgpu_encoder->native_mode; 4009 struct amdgpu_dm_connector *amdgpu_dm_connector = 4010 to_amdgpu_dm_connector(connector); 4011 int i; 4012 int n; 4013 struct mode_size { 4014 char name[DRM_DISPLAY_MODE_LEN]; 4015 int w; 4016 int h; 4017 } common_modes[] = { 4018 { "640x480", 640, 480}, 4019 { "800x600", 800, 600}, 4020 { "1024x768", 1024, 768}, 4021 { "1280x720", 1280, 720}, 4022 { "1280x800", 1280, 800}, 4023 {"1280x1024", 1280, 1024}, 4024 { "1440x900", 1440, 900}, 4025 {"1680x1050", 1680, 1050}, 4026 {"1600x1200", 1600, 1200}, 4027 {"1920x1080", 1920, 1080}, 4028 {"1920x1200", 1920, 1200} 4029 }; 4030 4031 n = ARRAY_SIZE(common_modes); 4032 4033 for (i = 0; i < n; i++) { 4034 struct drm_display_mode *curmode = NULL; 4035 bool mode_existed = false; 4036 4037 if (common_modes[i].w > native_mode->hdisplay || 4038 common_modes[i].h > native_mode->vdisplay || 4039 (common_modes[i].w == native_mode->hdisplay && 4040 common_modes[i].h == native_mode->vdisplay)) 4041 continue; 4042 4043 list_for_each_entry(curmode, &connector->probed_modes, head) { 4044 if (common_modes[i].w == curmode->hdisplay && 4045 common_modes[i].h == curmode->vdisplay) { 4046 mode_existed = true; 4047 break; 4048 } 4049 } 4050 4051 if (mode_existed) 4052 continue; 4053 4054 mode = amdgpu_dm_create_common_mode(encoder, 4055 common_modes[i].name, common_modes[i].w, 4056 common_modes[i].h); 4057 drm_mode_probed_add(connector, mode); 4058 amdgpu_dm_connector->num_modes++; 4059 } 4060 } 4061 4062 static void amdgpu_dm_connector_ddc_get_modes(struct drm_connector *connector, 4063 struct edid *edid) 4064 { 4065 struct amdgpu_dm_connector *amdgpu_dm_connector = 4066 to_amdgpu_dm_connector(connector); 4067 4068 if (edid) { 4069 /* empty probed_modes */ 4070 INIT_LIST_HEAD(&connector->probed_modes); 4071 amdgpu_dm_connector->num_modes = 4072 drm_add_edid_modes(connector, edid); 4073 4074 amdgpu_dm_get_native_mode(connector); 4075 } else { 4076 amdgpu_dm_connector->num_modes = 0; 4077 } 4078 } 4079 4080 static int amdgpu_dm_connector_get_modes(struct drm_connector *connector) 4081 { 4082 struct amdgpu_dm_connector *amdgpu_dm_connector = 4083 to_amdgpu_dm_connector(connector); 4084 struct drm_encoder *encoder; 4085 struct edid *edid = amdgpu_dm_connector->edid; 4086 4087 encoder = amdgpu_dm_connector_to_encoder(connector); 4088 4089 if (!edid || !drm_edid_is_valid(edid)) { 4090 amdgpu_dm_connector->num_modes = 4091 drm_add_modes_noedid(connector, 640, 480); 4092 } else { 4093 amdgpu_dm_connector_ddc_get_modes(connector, edid); 4094 amdgpu_dm_connector_add_common_modes(encoder, connector); 4095 } 4096 amdgpu_dm_fbc_init(connector); 4097 4098 return amdgpu_dm_connector->num_modes; 4099 } 4100 4101 void amdgpu_dm_connector_init_helper(struct amdgpu_display_manager *dm, 4102 struct amdgpu_dm_connector *aconnector, 4103 int connector_type, 4104 struct dc_link *link, 4105 int link_index) 4106 { 4107 struct amdgpu_device *adev = dm->ddev->dev_private; 4108 4109 aconnector->connector_id = link_index; 4110 aconnector->dc_link = link; 4111 aconnector->base.interlace_allowed = false; 4112 aconnector->base.doublescan_allowed = false; 4113 aconnector->base.stereo_allowed = false; 4114 aconnector->base.dpms = DRM_MODE_DPMS_OFF; 4115 aconnector->hpd.hpd = AMDGPU_HPD_NONE; /* not used */ 4116 mutex_init(&aconnector->hpd_lock); 4117 4118 /* 4119 * configure support HPD hot plug connector_>polled default value is 0 4120 * which means HPD hot plug not supported 4121 */ 4122 switch (connector_type) { 4123 case DRM_MODE_CONNECTOR_HDMIA: 4124 aconnector->base.polled = DRM_CONNECTOR_POLL_HPD; 4125 aconnector->base.ycbcr_420_allowed = 4126 link->link_enc->features.hdmi_ycbcr420_supported ? true : false; 4127 break; 4128 case DRM_MODE_CONNECTOR_DisplayPort: 4129 aconnector->base.polled = DRM_CONNECTOR_POLL_HPD; 4130 aconnector->base.ycbcr_420_allowed = 4131 link->link_enc->features.dp_ycbcr420_supported ? true : false; 4132 break; 4133 case DRM_MODE_CONNECTOR_DVID: 4134 aconnector->base.polled = DRM_CONNECTOR_POLL_HPD; 4135 break; 4136 default: 4137 break; 4138 } 4139 4140 drm_object_attach_property(&aconnector->base.base, 4141 dm->ddev->mode_config.scaling_mode_property, 4142 DRM_MODE_SCALE_NONE); 4143 4144 drm_object_attach_property(&aconnector->base.base, 4145 adev->mode_info.underscan_property, 4146 UNDERSCAN_OFF); 4147 drm_object_attach_property(&aconnector->base.base, 4148 adev->mode_info.underscan_hborder_property, 4149 0); 4150 drm_object_attach_property(&aconnector->base.base, 4151 adev->mode_info.underscan_vborder_property, 4152 0); 4153 drm_object_attach_property(&aconnector->base.base, 4154 adev->mode_info.max_bpc_property, 4155 0); 4156 4157 if (connector_type == DRM_MODE_CONNECTOR_eDP && 4158 dc_is_dmcu_initialized(adev->dm.dc)) { 4159 drm_object_attach_property(&aconnector->base.base, 4160 adev->mode_info.abm_level_property, 0); 4161 } 4162 4163 if (connector_type == DRM_MODE_CONNECTOR_HDMIA || 4164 connector_type == DRM_MODE_CONNECTOR_DisplayPort || 4165 connector_type == DRM_MODE_CONNECTOR_eDP) { 4166 drm_connector_attach_vrr_capable_property( 4167 &aconnector->base); 4168 } 4169 } 4170 4171 static int amdgpu_dm_i2c_xfer(struct i2c_adapter *i2c_adap, 4172 struct i2c_msg *msgs, int num) 4173 { 4174 struct amdgpu_i2c_adapter *i2c = i2c_get_adapdata(i2c_adap); 4175 struct ddc_service *ddc_service = i2c->ddc_service; 4176 struct i2c_command cmd; 4177 int i; 4178 int result = -EIO; 4179 4180 cmd.payloads = kcalloc(num, sizeof(struct i2c_payload), GFP_KERNEL); 4181 4182 if (!cmd.payloads) 4183 return result; 4184 4185 cmd.number_of_payloads = num; 4186 cmd.engine = I2C_COMMAND_ENGINE_DEFAULT; 4187 cmd.speed = 100; 4188 4189 for (i = 0; i < num; i++) { 4190 cmd.payloads[i].write = !(msgs[i].flags & I2C_M_RD); 4191 cmd.payloads[i].address = msgs[i].addr; 4192 cmd.payloads[i].length = msgs[i].len; 4193 cmd.payloads[i].data = msgs[i].buf; 4194 } 4195 4196 if (dc_submit_i2c( 4197 ddc_service->ctx->dc, 4198 ddc_service->ddc_pin->hw_info.ddc_channel, 4199 &cmd)) 4200 result = num; 4201 4202 kfree(cmd.payloads); 4203 return result; 4204 } 4205 4206 static u32 amdgpu_dm_i2c_func(struct i2c_adapter *adap) 4207 { 4208 return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL; 4209 } 4210 4211 static const struct i2c_algorithm amdgpu_dm_i2c_algo = { 4212 .master_xfer = amdgpu_dm_i2c_xfer, 4213 .functionality = amdgpu_dm_i2c_func, 4214 }; 4215 4216 static struct amdgpu_i2c_adapter * 4217 create_i2c(struct ddc_service *ddc_service, 4218 int link_index, 4219 int *res) 4220 { 4221 struct amdgpu_device *adev = ddc_service->ctx->driver_context; 4222 struct amdgpu_i2c_adapter *i2c; 4223 4224 i2c = kzalloc(sizeof(struct amdgpu_i2c_adapter), GFP_KERNEL); 4225 if (!i2c) 4226 return NULL; 4227 i2c->base.owner = THIS_MODULE; 4228 i2c->base.class = I2C_CLASS_DDC; 4229 i2c->base.dev.parent = &adev->pdev->dev; 4230 i2c->base.algo = &amdgpu_dm_i2c_algo; 4231 snprintf(i2c->base.name, sizeof(i2c->base.name), "AMDGPU DM i2c hw bus %d", link_index); 4232 i2c_set_adapdata(&i2c->base, i2c); 4233 i2c->ddc_service = ddc_service; 4234 i2c->ddc_service->ddc_pin->hw_info.ddc_channel = link_index; 4235 4236 return i2c; 4237 } 4238 4239 4240 /* 4241 * Note: this function assumes that dc_link_detect() was called for the 4242 * dc_link which will be represented by this aconnector. 4243 */ 4244 static int amdgpu_dm_connector_init(struct amdgpu_display_manager *dm, 4245 struct amdgpu_dm_connector *aconnector, 4246 uint32_t link_index, 4247 struct amdgpu_encoder *aencoder) 4248 { 4249 int res = 0; 4250 int connector_type; 4251 struct dc *dc = dm->dc; 4252 struct dc_link *link = dc_get_link_at_index(dc, link_index); 4253 struct amdgpu_i2c_adapter *i2c; 4254 4255 link->priv = aconnector; 4256 4257 DRM_DEBUG_DRIVER("%s()\n", __func__); 4258 4259 i2c = create_i2c(link->ddc, link->link_index, &res); 4260 if (!i2c) { 4261 DRM_ERROR("Failed to create i2c adapter data\n"); 4262 return -ENOMEM; 4263 } 4264 4265 aconnector->i2c = i2c; 4266 res = i2c_add_adapter(&i2c->base); 4267 4268 if (res) { 4269 DRM_ERROR("Failed to register hw i2c %d\n", link->link_index); 4270 goto out_free; 4271 } 4272 4273 connector_type = to_drm_connector_type(link->connector_signal); 4274 4275 res = drm_connector_init( 4276 dm->ddev, 4277 &aconnector->base, 4278 &amdgpu_dm_connector_funcs, 4279 connector_type); 4280 4281 if (res) { 4282 DRM_ERROR("connector_init failed\n"); 4283 aconnector->connector_id = -1; 4284 goto out_free; 4285 } 4286 4287 drm_connector_helper_add( 4288 &aconnector->base, 4289 &amdgpu_dm_connector_helper_funcs); 4290 4291 if (aconnector->base.funcs->reset) 4292 aconnector->base.funcs->reset(&aconnector->base); 4293 4294 amdgpu_dm_connector_init_helper( 4295 dm, 4296 aconnector, 4297 connector_type, 4298 link, 4299 link_index); 4300 4301 drm_connector_attach_encoder( 4302 &aconnector->base, &aencoder->base); 4303 4304 drm_connector_register(&aconnector->base); 4305 #if defined(CONFIG_DEBUG_FS) 4306 res = connector_debugfs_init(aconnector); 4307 if (res) { 4308 DRM_ERROR("Failed to create debugfs for connector"); 4309 goto out_free; 4310 } 4311 #endif 4312 4313 if (connector_type == DRM_MODE_CONNECTOR_DisplayPort 4314 || connector_type == DRM_MODE_CONNECTOR_eDP) 4315 amdgpu_dm_initialize_dp_connector(dm, aconnector); 4316 4317 out_free: 4318 if (res) { 4319 kfree(i2c); 4320 aconnector->i2c = NULL; 4321 } 4322 return res; 4323 } 4324 4325 int amdgpu_dm_get_encoder_crtc_mask(struct amdgpu_device *adev) 4326 { 4327 switch (adev->mode_info.num_crtc) { 4328 case 1: 4329 return 0x1; 4330 case 2: 4331 return 0x3; 4332 case 3: 4333 return 0x7; 4334 case 4: 4335 return 0xf; 4336 case 5: 4337 return 0x1f; 4338 case 6: 4339 default: 4340 return 0x3f; 4341 } 4342 } 4343 4344 static int amdgpu_dm_encoder_init(struct drm_device *dev, 4345 struct amdgpu_encoder *aencoder, 4346 uint32_t link_index) 4347 { 4348 struct amdgpu_device *adev = dev->dev_private; 4349 4350 int res = drm_encoder_init(dev, 4351 &aencoder->base, 4352 &amdgpu_dm_encoder_funcs, 4353 DRM_MODE_ENCODER_TMDS, 4354 NULL); 4355 4356 aencoder->base.possible_crtcs = amdgpu_dm_get_encoder_crtc_mask(adev); 4357 4358 if (!res) 4359 aencoder->encoder_id = link_index; 4360 else 4361 aencoder->encoder_id = -1; 4362 4363 drm_encoder_helper_add(&aencoder->base, &amdgpu_dm_encoder_helper_funcs); 4364 4365 return res; 4366 } 4367 4368 static void manage_dm_interrupts(struct amdgpu_device *adev, 4369 struct amdgpu_crtc *acrtc, 4370 bool enable) 4371 { 4372 /* 4373 * this is not correct translation but will work as soon as VBLANK 4374 * constant is the same as PFLIP 4375 */ 4376 int irq_type = 4377 amdgpu_display_crtc_idx_to_irq_type( 4378 adev, 4379 acrtc->crtc_id); 4380 4381 if (enable) { 4382 drm_crtc_vblank_on(&acrtc->base); 4383 amdgpu_irq_get( 4384 adev, 4385 &adev->pageflip_irq, 4386 irq_type); 4387 } else { 4388 4389 amdgpu_irq_put( 4390 adev, 4391 &adev->pageflip_irq, 4392 irq_type); 4393 drm_crtc_vblank_off(&acrtc->base); 4394 } 4395 } 4396 4397 static bool 4398 is_scaling_state_different(const struct dm_connector_state *dm_state, 4399 const struct dm_connector_state *old_dm_state) 4400 { 4401 if (dm_state->scaling != old_dm_state->scaling) 4402 return true; 4403 if (!dm_state->underscan_enable && old_dm_state->underscan_enable) { 4404 if (old_dm_state->underscan_hborder != 0 && old_dm_state->underscan_vborder != 0) 4405 return true; 4406 } else if (dm_state->underscan_enable && !old_dm_state->underscan_enable) { 4407 if (dm_state->underscan_hborder != 0 && dm_state->underscan_vborder != 0) 4408 return true; 4409 } else if (dm_state->underscan_hborder != old_dm_state->underscan_hborder || 4410 dm_state->underscan_vborder != old_dm_state->underscan_vborder) 4411 return true; 4412 return false; 4413 } 4414 4415 static void remove_stream(struct amdgpu_device *adev, 4416 struct amdgpu_crtc *acrtc, 4417 struct dc_stream_state *stream) 4418 { 4419 /* this is the update mode case */ 4420 4421 acrtc->otg_inst = -1; 4422 acrtc->enabled = false; 4423 } 4424 4425 static int get_cursor_position(struct drm_plane *plane, struct drm_crtc *crtc, 4426 struct dc_cursor_position *position) 4427 { 4428 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); 4429 int x, y; 4430 int xorigin = 0, yorigin = 0; 4431 4432 if (!crtc || !plane->state->fb) { 4433 position->enable = false; 4434 position->x = 0; 4435 position->y = 0; 4436 return 0; 4437 } 4438 4439 if ((plane->state->crtc_w > amdgpu_crtc->max_cursor_width) || 4440 (plane->state->crtc_h > amdgpu_crtc->max_cursor_height)) { 4441 DRM_ERROR("%s: bad cursor width or height %d x %d\n", 4442 __func__, 4443 plane->state->crtc_w, 4444 plane->state->crtc_h); 4445 return -EINVAL; 4446 } 4447 4448 x = plane->state->crtc_x; 4449 y = plane->state->crtc_y; 4450 /* avivo cursor are offset into the total surface */ 4451 x += crtc->primary->state->src_x >> 16; 4452 y += crtc->primary->state->src_y >> 16; 4453 if (x < 0) { 4454 xorigin = min(-x, amdgpu_crtc->max_cursor_width - 1); 4455 x = 0; 4456 } 4457 if (y < 0) { 4458 yorigin = min(-y, amdgpu_crtc->max_cursor_height - 1); 4459 y = 0; 4460 } 4461 position->enable = true; 4462 position->x = x; 4463 position->y = y; 4464 position->x_hotspot = xorigin; 4465 position->y_hotspot = yorigin; 4466 4467 return 0; 4468 } 4469 4470 static void handle_cursor_update(struct drm_plane *plane, 4471 struct drm_plane_state *old_plane_state) 4472 { 4473 struct amdgpu_device *adev = plane->dev->dev_private; 4474 struct amdgpu_framebuffer *afb = to_amdgpu_framebuffer(plane->state->fb); 4475 struct drm_crtc *crtc = afb ? plane->state->crtc : old_plane_state->crtc; 4476 struct dm_crtc_state *crtc_state = crtc ? to_dm_crtc_state(crtc->state) : NULL; 4477 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); 4478 uint64_t address = afb ? afb->address : 0; 4479 struct dc_cursor_position position; 4480 struct dc_cursor_attributes attributes; 4481 int ret; 4482 4483 if (!plane->state->fb && !old_plane_state->fb) 4484 return; 4485 4486 DRM_DEBUG_DRIVER("%s: crtc_id=%d with size %d to %d\n", 4487 __func__, 4488 amdgpu_crtc->crtc_id, 4489 plane->state->crtc_w, 4490 plane->state->crtc_h); 4491 4492 ret = get_cursor_position(plane, crtc, &position); 4493 if (ret) 4494 return; 4495 4496 if (!position.enable) { 4497 /* turn off cursor */ 4498 if (crtc_state && crtc_state->stream) { 4499 mutex_lock(&adev->dm.dc_lock); 4500 dc_stream_set_cursor_position(crtc_state->stream, 4501 &position); 4502 mutex_unlock(&adev->dm.dc_lock); 4503 } 4504 return; 4505 } 4506 4507 amdgpu_crtc->cursor_width = plane->state->crtc_w; 4508 amdgpu_crtc->cursor_height = plane->state->crtc_h; 4509 4510 attributes.address.high_part = upper_32_bits(address); 4511 attributes.address.low_part = lower_32_bits(address); 4512 attributes.width = plane->state->crtc_w; 4513 attributes.height = plane->state->crtc_h; 4514 attributes.color_format = CURSOR_MODE_COLOR_PRE_MULTIPLIED_ALPHA; 4515 attributes.rotation_angle = 0; 4516 attributes.attribute_flags.value = 0; 4517 4518 attributes.pitch = attributes.width; 4519 4520 if (crtc_state->stream) { 4521 mutex_lock(&adev->dm.dc_lock); 4522 if (!dc_stream_set_cursor_attributes(crtc_state->stream, 4523 &attributes)) 4524 DRM_ERROR("DC failed to set cursor attributes\n"); 4525 4526 if (!dc_stream_set_cursor_position(crtc_state->stream, 4527 &position)) 4528 DRM_ERROR("DC failed to set cursor position\n"); 4529 mutex_unlock(&adev->dm.dc_lock); 4530 } 4531 } 4532 4533 static void prepare_flip_isr(struct amdgpu_crtc *acrtc) 4534 { 4535 4536 assert_spin_locked(&acrtc->base.dev->event_lock); 4537 WARN_ON(acrtc->event); 4538 4539 acrtc->event = acrtc->base.state->event; 4540 4541 /* Set the flip status */ 4542 acrtc->pflip_status = AMDGPU_FLIP_SUBMITTED; 4543 4544 /* Mark this event as consumed */ 4545 acrtc->base.state->event = NULL; 4546 4547 DRM_DEBUG_DRIVER("crtc:%d, pflip_stat:AMDGPU_FLIP_SUBMITTED\n", 4548 acrtc->crtc_id); 4549 } 4550 4551 static void update_freesync_state_on_stream( 4552 struct amdgpu_display_manager *dm, 4553 struct dm_crtc_state *new_crtc_state, 4554 struct dc_stream_state *new_stream, 4555 struct dc_plane_state *surface, 4556 u32 flip_timestamp_in_us) 4557 { 4558 struct mod_vrr_params vrr_params = new_crtc_state->vrr_params; 4559 struct dc_info_packet vrr_infopacket = {0}; 4560 struct mod_freesync_config config = new_crtc_state->freesync_config; 4561 4562 if (!new_stream) 4563 return; 4564 4565 /* 4566 * TODO: Determine why min/max totals and vrefresh can be 0 here. 4567 * For now it's sufficient to just guard against these conditions. 4568 */ 4569 4570 if (!new_stream->timing.h_total || !new_stream->timing.v_total) 4571 return; 4572 4573 if (new_crtc_state->vrr_supported && 4574 config.min_refresh_in_uhz && 4575 config.max_refresh_in_uhz) { 4576 config.state = new_crtc_state->base.vrr_enabled ? 4577 VRR_STATE_ACTIVE_VARIABLE : 4578 VRR_STATE_INACTIVE; 4579 } else { 4580 config.state = VRR_STATE_UNSUPPORTED; 4581 } 4582 4583 mod_freesync_build_vrr_params(dm->freesync_module, 4584 new_stream, 4585 &config, &vrr_params); 4586 4587 if (surface) { 4588 mod_freesync_handle_preflip( 4589 dm->freesync_module, 4590 surface, 4591 new_stream, 4592 flip_timestamp_in_us, 4593 &vrr_params); 4594 } 4595 4596 mod_freesync_build_vrr_infopacket( 4597 dm->freesync_module, 4598 new_stream, 4599 &vrr_params, 4600 PACKET_TYPE_VRR, 4601 TRANSFER_FUNC_UNKNOWN, 4602 &vrr_infopacket); 4603 4604 new_crtc_state->freesync_timing_changed |= 4605 (memcmp(&new_crtc_state->vrr_params.adjust, 4606 &vrr_params.adjust, 4607 sizeof(vrr_params.adjust)) != 0); 4608 4609 new_crtc_state->freesync_vrr_info_changed |= 4610 (memcmp(&new_crtc_state->vrr_infopacket, 4611 &vrr_infopacket, 4612 sizeof(vrr_infopacket)) != 0); 4613 4614 new_crtc_state->vrr_params = vrr_params; 4615 new_crtc_state->vrr_infopacket = vrr_infopacket; 4616 4617 new_stream->adjust = new_crtc_state->vrr_params.adjust; 4618 new_stream->vrr_infopacket = vrr_infopacket; 4619 4620 if (new_crtc_state->freesync_vrr_info_changed) 4621 DRM_DEBUG_KMS("VRR packet update: crtc=%u enabled=%d state=%d", 4622 new_crtc_state->base.crtc->base.id, 4623 (int)new_crtc_state->base.vrr_enabled, 4624 (int)vrr_params.state); 4625 } 4626 4627 static void amdgpu_dm_commit_planes(struct drm_atomic_state *state, 4628 struct dc_state *dc_state, 4629 struct drm_device *dev, 4630 struct amdgpu_display_manager *dm, 4631 struct drm_crtc *pcrtc, 4632 bool *wait_for_vblank) 4633 { 4634 uint32_t i, r; 4635 uint64_t timestamp_ns; 4636 struct drm_plane *plane; 4637 struct drm_plane_state *old_plane_state, *new_plane_state; 4638 struct amdgpu_crtc *acrtc_attach = to_amdgpu_crtc(pcrtc); 4639 struct drm_crtc_state *new_pcrtc_state = 4640 drm_atomic_get_new_crtc_state(state, pcrtc); 4641 struct dm_crtc_state *acrtc_state = to_dm_crtc_state(new_pcrtc_state); 4642 struct dm_crtc_state *dm_old_crtc_state = 4643 to_dm_crtc_state(drm_atomic_get_old_crtc_state(state, pcrtc)); 4644 int flip_count = 0, planes_count = 0, vpos, hpos; 4645 unsigned long flags; 4646 struct amdgpu_bo *abo; 4647 uint64_t tiling_flags, dcc_address; 4648 uint32_t target, target_vblank; 4649 4650 struct { 4651 struct dc_surface_update surface_updates[MAX_SURFACES]; 4652 struct dc_flip_addrs flip_addrs[MAX_SURFACES]; 4653 struct dc_stream_update stream_update; 4654 } *flip; 4655 4656 struct { 4657 struct dc_surface_update surface_updates[MAX_SURFACES]; 4658 struct dc_plane_info plane_infos[MAX_SURFACES]; 4659 struct dc_scaling_info scaling_infos[MAX_SURFACES]; 4660 struct dc_stream_update stream_update; 4661 } *full; 4662 4663 flip = kzalloc(sizeof(*flip), GFP_KERNEL); 4664 full = kzalloc(sizeof(*full), GFP_KERNEL); 4665 4666 if (!flip || !full) { 4667 dm_error("Failed to allocate update bundles\n"); 4668 goto cleanup; 4669 } 4670 4671 /* update planes when needed */ 4672 for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, i) { 4673 struct drm_crtc *crtc = new_plane_state->crtc; 4674 struct drm_crtc_state *new_crtc_state; 4675 struct drm_framebuffer *fb = new_plane_state->fb; 4676 struct amdgpu_framebuffer *afb = to_amdgpu_framebuffer(fb); 4677 bool pflip_needed; 4678 struct dc_plane_state *dc_plane; 4679 struct dm_plane_state *dm_new_plane_state = to_dm_plane_state(new_plane_state); 4680 4681 if (plane->type == DRM_PLANE_TYPE_CURSOR) { 4682 handle_cursor_update(plane, old_plane_state); 4683 continue; 4684 } 4685 4686 if (!fb || !crtc || pcrtc != crtc) 4687 continue; 4688 4689 new_crtc_state = drm_atomic_get_new_crtc_state(state, crtc); 4690 if (!new_crtc_state->active) 4691 continue; 4692 4693 pflip_needed = old_plane_state->fb && 4694 old_plane_state->fb != new_plane_state->fb; 4695 4696 dc_plane = dm_new_plane_state->dc_state; 4697 4698 if (pflip_needed) { 4699 /* 4700 * Assume even ONE crtc with immediate flip means 4701 * entire can't wait for VBLANK 4702 * TODO Check if it's correct 4703 */ 4704 if (new_pcrtc_state->pageflip_flags & DRM_MODE_PAGE_FLIP_ASYNC) 4705 *wait_for_vblank = false; 4706 4707 /* 4708 * TODO This might fail and hence better not used, wait 4709 * explicitly on fences instead 4710 * and in general should be called for 4711 * blocking commit to as per framework helpers 4712 */ 4713 abo = gem_to_amdgpu_bo(fb->obj[0]); 4714 r = amdgpu_bo_reserve(abo, true); 4715 if (unlikely(r != 0)) { 4716 DRM_ERROR("failed to reserve buffer before flip\n"); 4717 WARN_ON(1); 4718 } 4719 4720 /* Wait for all fences on this FB */ 4721 WARN_ON(reservation_object_wait_timeout_rcu(abo->tbo.resv, true, false, 4722 MAX_SCHEDULE_TIMEOUT) < 0); 4723 4724 amdgpu_bo_get_tiling_flags(abo, &tiling_flags); 4725 4726 amdgpu_bo_unreserve(abo); 4727 4728 flip->flip_addrs[flip_count].address.grph.addr.low_part = lower_32_bits(afb->address); 4729 flip->flip_addrs[flip_count].address.grph.addr.high_part = upper_32_bits(afb->address); 4730 4731 dcc_address = get_dcc_address(afb->address, tiling_flags); 4732 flip->flip_addrs[flip_count].address.grph.meta_addr.low_part = lower_32_bits(dcc_address); 4733 flip->flip_addrs[flip_count].address.grph.meta_addr.high_part = upper_32_bits(dcc_address); 4734 4735 flip->flip_addrs[flip_count].flip_immediate = 4736 (crtc->state->pageflip_flags & DRM_MODE_PAGE_FLIP_ASYNC) != 0; 4737 4738 timestamp_ns = ktime_get_ns(); 4739 flip->flip_addrs[flip_count].flip_timestamp_in_us = div_u64(timestamp_ns, 1000); 4740 flip->surface_updates[flip_count].flip_addr = &flip->flip_addrs[flip_count]; 4741 flip->surface_updates[flip_count].surface = dc_plane; 4742 4743 if (!flip->surface_updates[flip_count].surface) { 4744 DRM_ERROR("No surface for CRTC: id=%d\n", 4745 acrtc_attach->crtc_id); 4746 continue; 4747 } 4748 4749 if (plane == pcrtc->primary) 4750 update_freesync_state_on_stream( 4751 dm, 4752 acrtc_state, 4753 acrtc_state->stream, 4754 dc_plane, 4755 flip->flip_addrs[flip_count].flip_timestamp_in_us); 4756 4757 DRM_DEBUG_DRIVER("%s Flipping to hi: 0x%x, low: 0x%x\n", 4758 __func__, 4759 flip->flip_addrs[flip_count].address.grph.addr.high_part, 4760 flip->flip_addrs[flip_count].address.grph.addr.low_part); 4761 4762 flip_count += 1; 4763 } 4764 4765 full->surface_updates[planes_count].surface = dc_plane; 4766 if (new_pcrtc_state->color_mgmt_changed) { 4767 full->surface_updates[planes_count].gamma = dc_plane->gamma_correction; 4768 full->surface_updates[planes_count].in_transfer_func = dc_plane->in_transfer_func; 4769 } 4770 4771 4772 full->scaling_infos[planes_count].scaling_quality = dc_plane->scaling_quality; 4773 full->scaling_infos[planes_count].src_rect = dc_plane->src_rect; 4774 full->scaling_infos[planes_count].dst_rect = dc_plane->dst_rect; 4775 full->scaling_infos[planes_count].clip_rect = dc_plane->clip_rect; 4776 full->surface_updates[planes_count].scaling_info = &full->scaling_infos[planes_count]; 4777 4778 4779 full->plane_infos[planes_count].color_space = dc_plane->color_space; 4780 full->plane_infos[planes_count].format = dc_plane->format; 4781 full->plane_infos[planes_count].plane_size = dc_plane->plane_size; 4782 full->plane_infos[planes_count].rotation = dc_plane->rotation; 4783 full->plane_infos[planes_count].horizontal_mirror = dc_plane->horizontal_mirror; 4784 full->plane_infos[planes_count].stereo_format = dc_plane->stereo_format; 4785 full->plane_infos[planes_count].tiling_info = dc_plane->tiling_info; 4786 full->plane_infos[planes_count].visible = dc_plane->visible; 4787 full->plane_infos[planes_count].per_pixel_alpha = dc_plane->per_pixel_alpha; 4788 full->plane_infos[planes_count].dcc = dc_plane->dcc; 4789 full->surface_updates[planes_count].plane_info = &full->plane_infos[planes_count]; 4790 4791 planes_count += 1; 4792 4793 } 4794 4795 /* 4796 * TODO: For proper atomic behaviour, we should be calling into DC once with 4797 * all the changes. However, DC refuses to do pageflips and non-pageflip 4798 * changes in the same call. Change DC to respect atomic behaviour, 4799 * hopefully eliminating dc_*_update structs in their entirety. 4800 */ 4801 if (flip_count) { 4802 target = (uint32_t)drm_crtc_vblank_count(pcrtc) + *wait_for_vblank; 4803 /* Prepare wait for target vblank early - before the fence-waits */ 4804 target_vblank = target - (uint32_t)drm_crtc_vblank_count(pcrtc) + 4805 amdgpu_get_vblank_counter_kms(pcrtc->dev, acrtc_attach->crtc_id); 4806 4807 /* 4808 * Wait until we're out of the vertical blank period before the one 4809 * targeted by the flip 4810 */ 4811 while ((acrtc_attach->enabled && 4812 (amdgpu_display_get_crtc_scanoutpos(dm->ddev, acrtc_attach->crtc_id, 4813 0, &vpos, &hpos, NULL, 4814 NULL, &pcrtc->hwmode) 4815 & (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_IN_VBLANK)) == 4816 (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_IN_VBLANK) && 4817 (int)(target_vblank - 4818 amdgpu_get_vblank_counter_kms(dm->ddev, acrtc_attach->crtc_id)) > 0)) { 4819 usleep_range(1000, 1100); 4820 } 4821 4822 if (acrtc_attach->base.state->event) { 4823 drm_crtc_vblank_get(pcrtc); 4824 4825 spin_lock_irqsave(&pcrtc->dev->event_lock, flags); 4826 4827 WARN_ON(acrtc_attach->pflip_status != AMDGPU_FLIP_NONE); 4828 prepare_flip_isr(acrtc_attach); 4829 4830 spin_unlock_irqrestore(&pcrtc->dev->event_lock, flags); 4831 } 4832 4833 if (acrtc_state->stream) { 4834 4835 if (acrtc_state->freesync_timing_changed) 4836 flip->stream_update.adjust = 4837 &acrtc_state->stream->adjust; 4838 4839 if (acrtc_state->freesync_vrr_info_changed) 4840 flip->stream_update.vrr_infopacket = 4841 &acrtc_state->stream->vrr_infopacket; 4842 } 4843 4844 mutex_lock(&dm->dc_lock); 4845 dc_commit_updates_for_stream(dm->dc, 4846 flip->surface_updates, 4847 flip_count, 4848 acrtc_state->stream, 4849 &flip->stream_update, 4850 dc_state); 4851 mutex_unlock(&dm->dc_lock); 4852 } 4853 4854 if (planes_count) { 4855 if (new_pcrtc_state->mode_changed) { 4856 full->stream_update.src = acrtc_state->stream->src; 4857 full->stream_update.dst = acrtc_state->stream->dst; 4858 } 4859 4860 if (new_pcrtc_state->color_mgmt_changed) 4861 full->stream_update.out_transfer_func = acrtc_state->stream->out_transfer_func; 4862 4863 acrtc_state->stream->abm_level = acrtc_state->abm_level; 4864 if (acrtc_state->abm_level != dm_old_crtc_state->abm_level) 4865 full->stream_update.abm_level = &acrtc_state->abm_level; 4866 4867 mutex_lock(&dm->dc_lock); 4868 dc_commit_updates_for_stream(dm->dc, 4869 full->surface_updates, 4870 planes_count, 4871 acrtc_state->stream, 4872 &full->stream_update, 4873 dc_state); 4874 mutex_unlock(&dm->dc_lock); 4875 } 4876 4877 cleanup: 4878 kfree(flip); 4879 kfree(full); 4880 } 4881 4882 /* 4883 * amdgpu_dm_crtc_copy_transient_flags - copy mirrored flags from DRM to DC 4884 * @crtc_state: the DRM CRTC state 4885 * @stream_state: the DC stream state. 4886 * 4887 * Copy the mirrored transient state flags from DRM, to DC. It is used to bring 4888 * a dc_stream_state's flags in sync with a drm_crtc_state's flags. 4889 */ 4890 static void amdgpu_dm_crtc_copy_transient_flags(struct drm_crtc_state *crtc_state, 4891 struct dc_stream_state *stream_state) 4892 { 4893 stream_state->mode_changed = 4894 crtc_state->mode_changed || crtc_state->active_changed; 4895 } 4896 4897 static int amdgpu_dm_atomic_commit(struct drm_device *dev, 4898 struct drm_atomic_state *state, 4899 bool nonblock) 4900 { 4901 struct drm_crtc *crtc; 4902 struct drm_crtc_state *old_crtc_state, *new_crtc_state; 4903 struct amdgpu_device *adev = dev->dev_private; 4904 int i; 4905 4906 /* 4907 * We evade vblanks and pflips on crtc that 4908 * should be changed. We do it here to flush & disable 4909 * interrupts before drm_swap_state is called in drm_atomic_helper_commit 4910 * it will update crtc->dm_crtc_state->stream pointer which is used in 4911 * the ISRs. 4912 */ 4913 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { 4914 struct dm_crtc_state *dm_old_crtc_state = to_dm_crtc_state(old_crtc_state); 4915 struct dm_crtc_state *dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); 4916 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc); 4917 4918 if (drm_atomic_crtc_needs_modeset(new_crtc_state) 4919 && dm_old_crtc_state->stream) { 4920 /* 4921 * If the stream is removed and CRC capture was 4922 * enabled on the CRTC the extra vblank reference 4923 * needs to be dropped since CRC capture will be 4924 * disabled. 4925 */ 4926 if (!dm_new_crtc_state->stream 4927 && dm_new_crtc_state->crc_enabled) { 4928 drm_crtc_vblank_put(crtc); 4929 dm_new_crtc_state->crc_enabled = false; 4930 } 4931 4932 manage_dm_interrupts(adev, acrtc, false); 4933 } 4934 } 4935 /* 4936 * Add check here for SoC's that support hardware cursor plane, to 4937 * unset legacy_cursor_update 4938 */ 4939 4940 return drm_atomic_helper_commit(dev, state, nonblock); 4941 4942 /*TODO Handle EINTR, reenable IRQ*/ 4943 } 4944 4945 /** 4946 * amdgpu_dm_atomic_commit_tail() - AMDgpu DM's commit tail implementation. 4947 * @state: The atomic state to commit 4948 * 4949 * This will tell DC to commit the constructed DC state from atomic_check, 4950 * programming the hardware. Any failures here implies a hardware failure, since 4951 * atomic check should have filtered anything non-kosher. 4952 */ 4953 static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state) 4954 { 4955 struct drm_device *dev = state->dev; 4956 struct amdgpu_device *adev = dev->dev_private; 4957 struct amdgpu_display_manager *dm = &adev->dm; 4958 struct dm_atomic_state *dm_state; 4959 struct dc_state *dc_state = NULL, *dc_state_temp = NULL; 4960 uint32_t i, j; 4961 struct drm_crtc *crtc; 4962 struct drm_crtc_state *old_crtc_state, *new_crtc_state; 4963 unsigned long flags; 4964 bool wait_for_vblank = true; 4965 struct drm_connector *connector; 4966 struct drm_connector_state *old_con_state, *new_con_state; 4967 struct dm_crtc_state *dm_old_crtc_state, *dm_new_crtc_state; 4968 int crtc_disable_count = 0; 4969 4970 drm_atomic_helper_update_legacy_modeset_state(dev, state); 4971 4972 dm_state = dm_atomic_get_new_state(state); 4973 if (dm_state && dm_state->context) { 4974 dc_state = dm_state->context; 4975 } else { 4976 /* No state changes, retain current state. */ 4977 dc_state_temp = dc_create_state(); 4978 ASSERT(dc_state_temp); 4979 dc_state = dc_state_temp; 4980 dc_resource_state_copy_construct_current(dm->dc, dc_state); 4981 } 4982 4983 /* update changed items */ 4984 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { 4985 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc); 4986 4987 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); 4988 dm_old_crtc_state = to_dm_crtc_state(old_crtc_state); 4989 4990 DRM_DEBUG_DRIVER( 4991 "amdgpu_crtc id:%d crtc_state_flags: enable:%d, active:%d, " 4992 "planes_changed:%d, mode_changed:%d,active_changed:%d," 4993 "connectors_changed:%d\n", 4994 acrtc->crtc_id, 4995 new_crtc_state->enable, 4996 new_crtc_state->active, 4997 new_crtc_state->planes_changed, 4998 new_crtc_state->mode_changed, 4999 new_crtc_state->active_changed, 5000 new_crtc_state->connectors_changed); 5001 5002 /* Copy all transient state flags into dc state */ 5003 if (dm_new_crtc_state->stream) { 5004 amdgpu_dm_crtc_copy_transient_flags(&dm_new_crtc_state->base, 5005 dm_new_crtc_state->stream); 5006 } 5007 5008 /* handles headless hotplug case, updating new_state and 5009 * aconnector as needed 5010 */ 5011 5012 if (modeset_required(new_crtc_state, dm_new_crtc_state->stream, dm_old_crtc_state->stream)) { 5013 5014 DRM_DEBUG_DRIVER("Atomic commit: SET crtc id %d: [%p]\n", acrtc->crtc_id, acrtc); 5015 5016 if (!dm_new_crtc_state->stream) { 5017 /* 5018 * this could happen because of issues with 5019 * userspace notifications delivery. 5020 * In this case userspace tries to set mode on 5021 * display which is disconnected in fact. 5022 * dc_sink is NULL in this case on aconnector. 5023 * We expect reset mode will come soon. 5024 * 5025 * This can also happen when unplug is done 5026 * during resume sequence ended 5027 * 5028 * In this case, we want to pretend we still 5029 * have a sink to keep the pipe running so that 5030 * hw state is consistent with the sw state 5031 */ 5032 DRM_DEBUG_DRIVER("%s: Failed to create new stream for crtc %d\n", 5033 __func__, acrtc->base.base.id); 5034 continue; 5035 } 5036 5037 if (dm_old_crtc_state->stream) 5038 remove_stream(adev, acrtc, dm_old_crtc_state->stream); 5039 5040 pm_runtime_get_noresume(dev->dev); 5041 5042 acrtc->enabled = true; 5043 acrtc->hw_mode = new_crtc_state->mode; 5044 crtc->hwmode = new_crtc_state->mode; 5045 } else if (modereset_required(new_crtc_state)) { 5046 DRM_DEBUG_DRIVER("Atomic commit: RESET. crtc id %d:[%p]\n", acrtc->crtc_id, acrtc); 5047 5048 /* i.e. reset mode */ 5049 if (dm_old_crtc_state->stream) 5050 remove_stream(adev, acrtc, dm_old_crtc_state->stream); 5051 } 5052 } /* for_each_crtc_in_state() */ 5053 5054 if (dc_state) { 5055 dm_enable_per_frame_crtc_master_sync(dc_state); 5056 mutex_lock(&dm->dc_lock); 5057 WARN_ON(!dc_commit_state(dm->dc, dc_state)); 5058 mutex_unlock(&dm->dc_lock); 5059 } 5060 5061 for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) { 5062 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc); 5063 5064 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); 5065 5066 if (dm_new_crtc_state->stream != NULL) { 5067 const struct dc_stream_status *status = 5068 dc_stream_get_status(dm_new_crtc_state->stream); 5069 5070 if (!status) 5071 status = dc_stream_get_status_from_state(dc_state, 5072 dm_new_crtc_state->stream); 5073 5074 if (!status) 5075 DC_ERR("got no status for stream %p on acrtc%p\n", dm_new_crtc_state->stream, acrtc); 5076 else 5077 acrtc->otg_inst = status->primary_otg_inst; 5078 } 5079 } 5080 5081 /* Handle connector state changes */ 5082 for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) { 5083 struct dm_connector_state *dm_new_con_state = to_dm_connector_state(new_con_state); 5084 struct dm_connector_state *dm_old_con_state = to_dm_connector_state(old_con_state); 5085 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(dm_new_con_state->base.crtc); 5086 struct dc_surface_update dummy_updates[MAX_SURFACES]; 5087 struct dc_stream_update stream_update; 5088 struct dc_stream_status *status = NULL; 5089 5090 memset(&dummy_updates, 0, sizeof(dummy_updates)); 5091 memset(&stream_update, 0, sizeof(stream_update)); 5092 5093 if (acrtc) { 5094 new_crtc_state = drm_atomic_get_new_crtc_state(state, &acrtc->base); 5095 old_crtc_state = drm_atomic_get_old_crtc_state(state, &acrtc->base); 5096 } 5097 5098 /* Skip any modesets/resets */ 5099 if (!acrtc || drm_atomic_crtc_needs_modeset(new_crtc_state)) 5100 continue; 5101 5102 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); 5103 dm_old_crtc_state = to_dm_crtc_state(old_crtc_state); 5104 5105 if (!is_scaling_state_different(dm_new_con_state, dm_old_con_state) && 5106 (dm_new_crtc_state->abm_level == dm_old_crtc_state->abm_level)) 5107 continue; 5108 5109 if (is_scaling_state_different(dm_new_con_state, dm_old_con_state)) { 5110 update_stream_scaling_settings(&dm_new_con_state->base.crtc->mode, 5111 dm_new_con_state, (struct dc_stream_state *)dm_new_crtc_state->stream); 5112 5113 stream_update.src = dm_new_crtc_state->stream->src; 5114 stream_update.dst = dm_new_crtc_state->stream->dst; 5115 } 5116 5117 if (dm_new_crtc_state->abm_level != dm_old_crtc_state->abm_level) { 5118 dm_new_crtc_state->stream->abm_level = dm_new_crtc_state->abm_level; 5119 5120 stream_update.abm_level = &dm_new_crtc_state->abm_level; 5121 } 5122 5123 status = dc_stream_get_status(dm_new_crtc_state->stream); 5124 WARN_ON(!status); 5125 WARN_ON(!status->plane_count); 5126 5127 /* 5128 * TODO: DC refuses to perform stream updates without a dc_surface_update. 5129 * Here we create an empty update on each plane. 5130 * To fix this, DC should permit updating only stream properties. 5131 */ 5132 for (j = 0; j < status->plane_count; j++) 5133 dummy_updates[j].surface = status->plane_states[0]; 5134 5135 5136 mutex_lock(&dm->dc_lock); 5137 dc_commit_updates_for_stream(dm->dc, 5138 dummy_updates, 5139 status->plane_count, 5140 dm_new_crtc_state->stream, 5141 &stream_update, 5142 dc_state); 5143 mutex_unlock(&dm->dc_lock); 5144 } 5145 5146 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, 5147 new_crtc_state, i) { 5148 /* 5149 * loop to enable interrupts on newly arrived crtc 5150 */ 5151 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc); 5152 bool modeset_needed; 5153 5154 if (old_crtc_state->active && !new_crtc_state->active) 5155 crtc_disable_count++; 5156 5157 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); 5158 dm_old_crtc_state = to_dm_crtc_state(old_crtc_state); 5159 modeset_needed = modeset_required( 5160 new_crtc_state, 5161 dm_new_crtc_state->stream, 5162 dm_old_crtc_state->stream); 5163 5164 if (dm_new_crtc_state->stream == NULL || !modeset_needed) 5165 continue; 5166 5167 manage_dm_interrupts(adev, acrtc, true); 5168 5169 #ifdef CONFIG_DEBUG_FS 5170 /* The stream has changed so CRC capture needs to re-enabled. */ 5171 if (dm_new_crtc_state->crc_enabled) 5172 amdgpu_dm_crtc_set_crc_source(crtc, "auto"); 5173 #endif 5174 } 5175 5176 /* update planes when needed per crtc*/ 5177 for_each_new_crtc_in_state(state, crtc, new_crtc_state, j) { 5178 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); 5179 5180 if (dm_new_crtc_state->stream) 5181 amdgpu_dm_commit_planes(state, dc_state, dev, 5182 dm, crtc, &wait_for_vblank); 5183 } 5184 5185 5186 /* 5187 * send vblank event on all events not handled in flip and 5188 * mark consumed event for drm_atomic_helper_commit_hw_done 5189 */ 5190 spin_lock_irqsave(&adev->ddev->event_lock, flags); 5191 for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) { 5192 5193 if (new_crtc_state->event) 5194 drm_send_event_locked(dev, &new_crtc_state->event->base); 5195 5196 new_crtc_state->event = NULL; 5197 } 5198 spin_unlock_irqrestore(&adev->ddev->event_lock, flags); 5199 5200 /* Signal HW programming completion */ 5201 drm_atomic_helper_commit_hw_done(state); 5202 5203 if (wait_for_vblank) 5204 drm_atomic_helper_wait_for_flip_done(dev, state); 5205 5206 drm_atomic_helper_cleanup_planes(dev, state); 5207 5208 /* 5209 * Finally, drop a runtime PM reference for each newly disabled CRTC, 5210 * so we can put the GPU into runtime suspend if we're not driving any 5211 * displays anymore 5212 */ 5213 for (i = 0; i < crtc_disable_count; i++) 5214 pm_runtime_put_autosuspend(dev->dev); 5215 pm_runtime_mark_last_busy(dev->dev); 5216 5217 if (dc_state_temp) 5218 dc_release_state(dc_state_temp); 5219 } 5220 5221 5222 static int dm_force_atomic_commit(struct drm_connector *connector) 5223 { 5224 int ret = 0; 5225 struct drm_device *ddev = connector->dev; 5226 struct drm_atomic_state *state = drm_atomic_state_alloc(ddev); 5227 struct amdgpu_crtc *disconnected_acrtc = to_amdgpu_crtc(connector->encoder->crtc); 5228 struct drm_plane *plane = disconnected_acrtc->base.primary; 5229 struct drm_connector_state *conn_state; 5230 struct drm_crtc_state *crtc_state; 5231 struct drm_plane_state *plane_state; 5232 5233 if (!state) 5234 return -ENOMEM; 5235 5236 state->acquire_ctx = ddev->mode_config.acquire_ctx; 5237 5238 /* Construct an atomic state to restore previous display setting */ 5239 5240 /* 5241 * Attach connectors to drm_atomic_state 5242 */ 5243 conn_state = drm_atomic_get_connector_state(state, connector); 5244 5245 ret = PTR_ERR_OR_ZERO(conn_state); 5246 if (ret) 5247 goto err; 5248 5249 /* Attach crtc to drm_atomic_state*/ 5250 crtc_state = drm_atomic_get_crtc_state(state, &disconnected_acrtc->base); 5251 5252 ret = PTR_ERR_OR_ZERO(crtc_state); 5253 if (ret) 5254 goto err; 5255 5256 /* force a restore */ 5257 crtc_state->mode_changed = true; 5258 5259 /* Attach plane to drm_atomic_state */ 5260 plane_state = drm_atomic_get_plane_state(state, plane); 5261 5262 ret = PTR_ERR_OR_ZERO(plane_state); 5263 if (ret) 5264 goto err; 5265 5266 5267 /* Call commit internally with the state we just constructed */ 5268 ret = drm_atomic_commit(state); 5269 if (!ret) 5270 return 0; 5271 5272 err: 5273 DRM_ERROR("Restoring old state failed with %i\n", ret); 5274 drm_atomic_state_put(state); 5275 5276 return ret; 5277 } 5278 5279 /* 5280 * This function handles all cases when set mode does not come upon hotplug. 5281 * This includes when a display is unplugged then plugged back into the 5282 * same port and when running without usermode desktop manager supprot 5283 */ 5284 void dm_restore_drm_connector_state(struct drm_device *dev, 5285 struct drm_connector *connector) 5286 { 5287 struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector); 5288 struct amdgpu_crtc *disconnected_acrtc; 5289 struct dm_crtc_state *acrtc_state; 5290 5291 if (!aconnector->dc_sink || !connector->state || !connector->encoder) 5292 return; 5293 5294 disconnected_acrtc = to_amdgpu_crtc(connector->encoder->crtc); 5295 if (!disconnected_acrtc) 5296 return; 5297 5298 acrtc_state = to_dm_crtc_state(disconnected_acrtc->base.state); 5299 if (!acrtc_state->stream) 5300 return; 5301 5302 /* 5303 * If the previous sink is not released and different from the current, 5304 * we deduce we are in a state where we can not rely on usermode call 5305 * to turn on the display, so we do it here 5306 */ 5307 if (acrtc_state->stream->sink != aconnector->dc_sink) 5308 dm_force_atomic_commit(&aconnector->base); 5309 } 5310 5311 /* 5312 * Grabs all modesetting locks to serialize against any blocking commits, 5313 * Waits for completion of all non blocking commits. 5314 */ 5315 static int do_aquire_global_lock(struct drm_device *dev, 5316 struct drm_atomic_state *state) 5317 { 5318 struct drm_crtc *crtc; 5319 struct drm_crtc_commit *commit; 5320 long ret; 5321 5322 /* 5323 * Adding all modeset locks to aquire_ctx will 5324 * ensure that when the framework release it the 5325 * extra locks we are locking here will get released to 5326 */ 5327 ret = drm_modeset_lock_all_ctx(dev, state->acquire_ctx); 5328 if (ret) 5329 return ret; 5330 5331 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 5332 spin_lock(&crtc->commit_lock); 5333 commit = list_first_entry_or_null(&crtc->commit_list, 5334 struct drm_crtc_commit, commit_entry); 5335 if (commit) 5336 drm_crtc_commit_get(commit); 5337 spin_unlock(&crtc->commit_lock); 5338 5339 if (!commit) 5340 continue; 5341 5342 /* 5343 * Make sure all pending HW programming completed and 5344 * page flips done 5345 */ 5346 ret = wait_for_completion_interruptible_timeout(&commit->hw_done, 10*HZ); 5347 5348 if (ret > 0) 5349 ret = wait_for_completion_interruptible_timeout( 5350 &commit->flip_done, 10*HZ); 5351 5352 if (ret == 0) 5353 DRM_ERROR("[CRTC:%d:%s] hw_done or flip_done " 5354 "timed out\n", crtc->base.id, crtc->name); 5355 5356 drm_crtc_commit_put(commit); 5357 } 5358 5359 return ret < 0 ? ret : 0; 5360 } 5361 5362 static void get_freesync_config_for_crtc( 5363 struct dm_crtc_state *new_crtc_state, 5364 struct dm_connector_state *new_con_state) 5365 { 5366 struct mod_freesync_config config = {0}; 5367 struct amdgpu_dm_connector *aconnector = 5368 to_amdgpu_dm_connector(new_con_state->base.connector); 5369 struct drm_display_mode *mode = &new_crtc_state->base.mode; 5370 5371 new_crtc_state->vrr_supported = new_con_state->freesync_capable && 5372 aconnector->min_vfreq <= drm_mode_vrefresh(mode); 5373 5374 if (new_crtc_state->vrr_supported) { 5375 new_crtc_state->stream->ignore_msa_timing_param = true; 5376 config.state = new_crtc_state->base.vrr_enabled ? 5377 VRR_STATE_ACTIVE_VARIABLE : 5378 VRR_STATE_INACTIVE; 5379 config.min_refresh_in_uhz = 5380 aconnector->min_vfreq * 1000000; 5381 config.max_refresh_in_uhz = 5382 aconnector->max_vfreq * 1000000; 5383 config.vsif_supported = true; 5384 config.btr = true; 5385 } 5386 5387 new_crtc_state->freesync_config = config; 5388 } 5389 5390 static void reset_freesync_config_for_crtc( 5391 struct dm_crtc_state *new_crtc_state) 5392 { 5393 new_crtc_state->vrr_supported = false; 5394 5395 memset(&new_crtc_state->vrr_params, 0, 5396 sizeof(new_crtc_state->vrr_params)); 5397 memset(&new_crtc_state->vrr_infopacket, 0, 5398 sizeof(new_crtc_state->vrr_infopacket)); 5399 } 5400 5401 static int dm_update_crtc_state(struct amdgpu_display_manager *dm, 5402 struct drm_atomic_state *state, 5403 struct drm_crtc *crtc, 5404 struct drm_crtc_state *old_crtc_state, 5405 struct drm_crtc_state *new_crtc_state, 5406 bool enable, 5407 bool *lock_and_validation_needed) 5408 { 5409 struct dm_atomic_state *dm_state = NULL; 5410 struct dm_crtc_state *dm_old_crtc_state, *dm_new_crtc_state; 5411 struct dc_stream_state *new_stream; 5412 int ret = 0; 5413 5414 /* 5415 * TODO Move this code into dm_crtc_atomic_check once we get rid of dc_validation_set 5416 * update changed items 5417 */ 5418 struct amdgpu_crtc *acrtc = NULL; 5419 struct amdgpu_dm_connector *aconnector = NULL; 5420 struct drm_connector_state *drm_new_conn_state = NULL, *drm_old_conn_state = NULL; 5421 struct dm_connector_state *dm_new_conn_state = NULL, *dm_old_conn_state = NULL; 5422 struct drm_plane_state *new_plane_state = NULL; 5423 5424 new_stream = NULL; 5425 5426 dm_old_crtc_state = to_dm_crtc_state(old_crtc_state); 5427 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); 5428 acrtc = to_amdgpu_crtc(crtc); 5429 5430 new_plane_state = drm_atomic_get_new_plane_state(state, new_crtc_state->crtc->primary); 5431 5432 if (new_crtc_state->enable && new_plane_state && !new_plane_state->fb) { 5433 ret = -EINVAL; 5434 goto fail; 5435 } 5436 5437 aconnector = amdgpu_dm_find_first_crtc_matching_connector(state, crtc); 5438 5439 /* TODO This hack should go away */ 5440 if (aconnector && enable) { 5441 /* Make sure fake sink is created in plug-in scenario */ 5442 drm_new_conn_state = drm_atomic_get_new_connector_state(state, 5443 &aconnector->base); 5444 drm_old_conn_state = drm_atomic_get_old_connector_state(state, 5445 &aconnector->base); 5446 5447 if (IS_ERR(drm_new_conn_state)) { 5448 ret = PTR_ERR_OR_ZERO(drm_new_conn_state); 5449 goto fail; 5450 } 5451 5452 dm_new_conn_state = to_dm_connector_state(drm_new_conn_state); 5453 dm_old_conn_state = to_dm_connector_state(drm_old_conn_state); 5454 5455 if (!drm_atomic_crtc_needs_modeset(new_crtc_state)) 5456 goto skip_modeset; 5457 5458 new_stream = create_stream_for_sink(aconnector, 5459 &new_crtc_state->mode, 5460 dm_new_conn_state, 5461 dm_old_crtc_state->stream); 5462 5463 /* 5464 * we can have no stream on ACTION_SET if a display 5465 * was disconnected during S3, in this case it is not an 5466 * error, the OS will be updated after detection, and 5467 * will do the right thing on next atomic commit 5468 */ 5469 5470 if (!new_stream) { 5471 DRM_DEBUG_DRIVER("%s: Failed to create new stream for crtc %d\n", 5472 __func__, acrtc->base.base.id); 5473 ret = -ENOMEM; 5474 goto fail; 5475 } 5476 5477 dm_new_crtc_state->abm_level = dm_new_conn_state->abm_level; 5478 5479 if (dc_is_stream_unchanged(new_stream, dm_old_crtc_state->stream) && 5480 dc_is_stream_scaling_unchanged(new_stream, dm_old_crtc_state->stream)) { 5481 new_crtc_state->mode_changed = false; 5482 DRM_DEBUG_DRIVER("Mode change not required, setting mode_changed to %d", 5483 new_crtc_state->mode_changed); 5484 } 5485 } 5486 5487 /* mode_changed flag may get updated above, need to check again */ 5488 if (!drm_atomic_crtc_needs_modeset(new_crtc_state)) 5489 goto skip_modeset; 5490 5491 DRM_DEBUG_DRIVER( 5492 "amdgpu_crtc id:%d crtc_state_flags: enable:%d, active:%d, " 5493 "planes_changed:%d, mode_changed:%d,active_changed:%d," 5494 "connectors_changed:%d\n", 5495 acrtc->crtc_id, 5496 new_crtc_state->enable, 5497 new_crtc_state->active, 5498 new_crtc_state->planes_changed, 5499 new_crtc_state->mode_changed, 5500 new_crtc_state->active_changed, 5501 new_crtc_state->connectors_changed); 5502 5503 /* Remove stream for any changed/disabled CRTC */ 5504 if (!enable) { 5505 5506 if (!dm_old_crtc_state->stream) 5507 goto skip_modeset; 5508 5509 ret = dm_atomic_get_state(state, &dm_state); 5510 if (ret) 5511 goto fail; 5512 5513 DRM_DEBUG_DRIVER("Disabling DRM crtc: %d\n", 5514 crtc->base.id); 5515 5516 /* i.e. reset mode */ 5517 if (dc_remove_stream_from_ctx( 5518 dm->dc, 5519 dm_state->context, 5520 dm_old_crtc_state->stream) != DC_OK) { 5521 ret = -EINVAL; 5522 goto fail; 5523 } 5524 5525 dc_stream_release(dm_old_crtc_state->stream); 5526 dm_new_crtc_state->stream = NULL; 5527 5528 reset_freesync_config_for_crtc(dm_new_crtc_state); 5529 5530 *lock_and_validation_needed = true; 5531 5532 } else {/* Add stream for any updated/enabled CRTC */ 5533 /* 5534 * Quick fix to prevent NULL pointer on new_stream when 5535 * added MST connectors not found in existing crtc_state in the chained mode 5536 * TODO: need to dig out the root cause of that 5537 */ 5538 if (!aconnector || (!aconnector->dc_sink && aconnector->mst_port)) 5539 goto skip_modeset; 5540 5541 if (modereset_required(new_crtc_state)) 5542 goto skip_modeset; 5543 5544 if (modeset_required(new_crtc_state, new_stream, 5545 dm_old_crtc_state->stream)) { 5546 5547 WARN_ON(dm_new_crtc_state->stream); 5548 5549 ret = dm_atomic_get_state(state, &dm_state); 5550 if (ret) 5551 goto fail; 5552 5553 dm_new_crtc_state->stream = new_stream; 5554 5555 dc_stream_retain(new_stream); 5556 5557 DRM_DEBUG_DRIVER("Enabling DRM crtc: %d\n", 5558 crtc->base.id); 5559 5560 if (dc_add_stream_to_ctx( 5561 dm->dc, 5562 dm_state->context, 5563 dm_new_crtc_state->stream) != DC_OK) { 5564 ret = -EINVAL; 5565 goto fail; 5566 } 5567 5568 *lock_and_validation_needed = true; 5569 } 5570 } 5571 5572 skip_modeset: 5573 /* Release extra reference */ 5574 if (new_stream) 5575 dc_stream_release(new_stream); 5576 5577 /* 5578 * We want to do dc stream updates that do not require a 5579 * full modeset below. 5580 */ 5581 if (!(enable && aconnector && new_crtc_state->enable && 5582 new_crtc_state->active)) 5583 return 0; 5584 /* 5585 * Given above conditions, the dc state cannot be NULL because: 5586 * 1. We're in the process of enabling CRTCs (just been added 5587 * to the dc context, or already is on the context) 5588 * 2. Has a valid connector attached, and 5589 * 3. Is currently active and enabled. 5590 * => The dc stream state currently exists. 5591 */ 5592 BUG_ON(dm_new_crtc_state->stream == NULL); 5593 5594 /* Scaling or underscan settings */ 5595 if (is_scaling_state_different(dm_old_conn_state, dm_new_conn_state)) 5596 update_stream_scaling_settings( 5597 &new_crtc_state->mode, dm_new_conn_state, dm_new_crtc_state->stream); 5598 5599 /* 5600 * Color management settings. We also update color properties 5601 * when a modeset is needed, to ensure it gets reprogrammed. 5602 */ 5603 if (dm_new_crtc_state->base.color_mgmt_changed || 5604 drm_atomic_crtc_needs_modeset(new_crtc_state)) { 5605 ret = amdgpu_dm_set_regamma_lut(dm_new_crtc_state); 5606 if (ret) 5607 goto fail; 5608 amdgpu_dm_set_ctm(dm_new_crtc_state); 5609 } 5610 5611 /* Update Freesync settings. */ 5612 get_freesync_config_for_crtc(dm_new_crtc_state, 5613 dm_new_conn_state); 5614 5615 return ret; 5616 5617 fail: 5618 if (new_stream) 5619 dc_stream_release(new_stream); 5620 return ret; 5621 } 5622 5623 static int dm_update_plane_state(struct dc *dc, 5624 struct drm_atomic_state *state, 5625 struct drm_plane *plane, 5626 struct drm_plane_state *old_plane_state, 5627 struct drm_plane_state *new_plane_state, 5628 bool enable, 5629 bool *lock_and_validation_needed) 5630 { 5631 5632 struct dm_atomic_state *dm_state = NULL; 5633 struct drm_crtc *new_plane_crtc, *old_plane_crtc; 5634 struct drm_crtc_state *old_crtc_state, *new_crtc_state; 5635 struct dm_crtc_state *dm_new_crtc_state, *dm_old_crtc_state; 5636 struct dm_plane_state *dm_new_plane_state, *dm_old_plane_state; 5637 /* TODO return page_flip_needed() function */ 5638 bool pflip_needed = !state->allow_modeset; 5639 int ret = 0; 5640 5641 5642 new_plane_crtc = new_plane_state->crtc; 5643 old_plane_crtc = old_plane_state->crtc; 5644 dm_new_plane_state = to_dm_plane_state(new_plane_state); 5645 dm_old_plane_state = to_dm_plane_state(old_plane_state); 5646 5647 /*TODO Implement atomic check for cursor plane */ 5648 if (plane->type == DRM_PLANE_TYPE_CURSOR) 5649 return 0; 5650 5651 /* Remove any changed/removed planes */ 5652 if (!enable) { 5653 if (pflip_needed && 5654 plane->type != DRM_PLANE_TYPE_OVERLAY) 5655 return 0; 5656 5657 if (!old_plane_crtc) 5658 return 0; 5659 5660 old_crtc_state = drm_atomic_get_old_crtc_state( 5661 state, old_plane_crtc); 5662 dm_old_crtc_state = to_dm_crtc_state(old_crtc_state); 5663 5664 if (!dm_old_crtc_state->stream) 5665 return 0; 5666 5667 DRM_DEBUG_ATOMIC("Disabling DRM plane: %d on DRM crtc %d\n", 5668 plane->base.id, old_plane_crtc->base.id); 5669 5670 ret = dm_atomic_get_state(state, &dm_state); 5671 if (ret) 5672 return ret; 5673 5674 if (!dc_remove_plane_from_context( 5675 dc, 5676 dm_old_crtc_state->stream, 5677 dm_old_plane_state->dc_state, 5678 dm_state->context)) { 5679 5680 ret = EINVAL; 5681 return ret; 5682 } 5683 5684 5685 dc_plane_state_release(dm_old_plane_state->dc_state); 5686 dm_new_plane_state->dc_state = NULL; 5687 5688 *lock_and_validation_needed = true; 5689 5690 } else { /* Add new planes */ 5691 struct dc_plane_state *dc_new_plane_state; 5692 5693 if (drm_atomic_plane_disabling(plane->state, new_plane_state)) 5694 return 0; 5695 5696 if (!new_plane_crtc) 5697 return 0; 5698 5699 new_crtc_state = drm_atomic_get_new_crtc_state(state, new_plane_crtc); 5700 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); 5701 5702 if (!dm_new_crtc_state->stream) 5703 return 0; 5704 5705 if (pflip_needed && plane->type != DRM_PLANE_TYPE_OVERLAY) 5706 return 0; 5707 5708 WARN_ON(dm_new_plane_state->dc_state); 5709 5710 dc_new_plane_state = dc_create_plane_state(dc); 5711 if (!dc_new_plane_state) 5712 return -ENOMEM; 5713 5714 DRM_DEBUG_DRIVER("Enabling DRM plane: %d on DRM crtc %d\n", 5715 plane->base.id, new_plane_crtc->base.id); 5716 5717 ret = fill_plane_attributes( 5718 new_plane_crtc->dev->dev_private, 5719 dc_new_plane_state, 5720 new_plane_state, 5721 new_crtc_state); 5722 if (ret) { 5723 dc_plane_state_release(dc_new_plane_state); 5724 return ret; 5725 } 5726 5727 ret = dm_atomic_get_state(state, &dm_state); 5728 if (ret) { 5729 dc_plane_state_release(dc_new_plane_state); 5730 return ret; 5731 } 5732 5733 /* 5734 * Any atomic check errors that occur after this will 5735 * not need a release. The plane state will be attached 5736 * to the stream, and therefore part of the atomic 5737 * state. It'll be released when the atomic state is 5738 * cleaned. 5739 */ 5740 if (!dc_add_plane_to_context( 5741 dc, 5742 dm_new_crtc_state->stream, 5743 dc_new_plane_state, 5744 dm_state->context)) { 5745 5746 dc_plane_state_release(dc_new_plane_state); 5747 return -EINVAL; 5748 } 5749 5750 dm_new_plane_state->dc_state = dc_new_plane_state; 5751 5752 /* Tell DC to do a full surface update every time there 5753 * is a plane change. Inefficient, but works for now. 5754 */ 5755 dm_new_plane_state->dc_state->update_flags.bits.full_update = 1; 5756 5757 *lock_and_validation_needed = true; 5758 } 5759 5760 5761 return ret; 5762 } 5763 5764 static int 5765 dm_determine_update_type_for_commit(struct dc *dc, 5766 struct drm_atomic_state *state, 5767 enum surface_update_type *out_type) 5768 { 5769 struct dm_atomic_state *dm_state = NULL, *old_dm_state = NULL; 5770 int i, j, num_plane, ret = 0; 5771 struct drm_plane_state *old_plane_state, *new_plane_state; 5772 struct dm_plane_state *new_dm_plane_state, *old_dm_plane_state; 5773 struct drm_crtc *new_plane_crtc, *old_plane_crtc; 5774 struct drm_plane *plane; 5775 5776 struct drm_crtc *crtc; 5777 struct drm_crtc_state *new_crtc_state, *old_crtc_state; 5778 struct dm_crtc_state *new_dm_crtc_state, *old_dm_crtc_state; 5779 struct dc_stream_status *status = NULL; 5780 5781 struct dc_surface_update *updates; 5782 struct dc_plane_state *surface; 5783 enum surface_update_type update_type = UPDATE_TYPE_FAST; 5784 5785 updates = kcalloc(MAX_SURFACES, sizeof(*updates), GFP_KERNEL); 5786 surface = kcalloc(MAX_SURFACES, sizeof(*surface), GFP_KERNEL); 5787 5788 if (!updates || !surface) { 5789 DRM_ERROR("Plane or surface update failed to allocate"); 5790 /* Set type to FULL to avoid crashing in DC*/ 5791 update_type = UPDATE_TYPE_FULL; 5792 goto cleanup; 5793 } 5794 5795 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { 5796 struct dc_stream_update stream_update = { 0 }; 5797 5798 new_dm_crtc_state = to_dm_crtc_state(new_crtc_state); 5799 old_dm_crtc_state = to_dm_crtc_state(old_crtc_state); 5800 num_plane = 0; 5801 5802 if (!new_dm_crtc_state->stream) { 5803 if (!new_dm_crtc_state->stream && old_dm_crtc_state->stream) { 5804 update_type = UPDATE_TYPE_FULL; 5805 goto cleanup; 5806 } 5807 5808 continue; 5809 } 5810 5811 for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, j) { 5812 new_plane_crtc = new_plane_state->crtc; 5813 old_plane_crtc = old_plane_state->crtc; 5814 new_dm_plane_state = to_dm_plane_state(new_plane_state); 5815 old_dm_plane_state = to_dm_plane_state(old_plane_state); 5816 5817 if (plane->type == DRM_PLANE_TYPE_CURSOR) 5818 continue; 5819 5820 if (!state->allow_modeset) 5821 continue; 5822 5823 if (crtc != new_plane_crtc) 5824 continue; 5825 5826 updates[num_plane].surface = &surface[num_plane]; 5827 5828 if (new_crtc_state->mode_changed) { 5829 updates[num_plane].surface->src_rect = 5830 new_dm_plane_state->dc_state->src_rect; 5831 updates[num_plane].surface->dst_rect = 5832 new_dm_plane_state->dc_state->dst_rect; 5833 updates[num_plane].surface->rotation = 5834 new_dm_plane_state->dc_state->rotation; 5835 updates[num_plane].surface->in_transfer_func = 5836 new_dm_plane_state->dc_state->in_transfer_func; 5837 stream_update.dst = new_dm_crtc_state->stream->dst; 5838 stream_update.src = new_dm_crtc_state->stream->src; 5839 } 5840 5841 if (new_crtc_state->color_mgmt_changed) { 5842 updates[num_plane].gamma = 5843 new_dm_plane_state->dc_state->gamma_correction; 5844 updates[num_plane].in_transfer_func = 5845 new_dm_plane_state->dc_state->in_transfer_func; 5846 stream_update.gamut_remap = 5847 &new_dm_crtc_state->stream->gamut_remap_matrix; 5848 stream_update.out_transfer_func = 5849 new_dm_crtc_state->stream->out_transfer_func; 5850 } 5851 5852 num_plane++; 5853 } 5854 5855 if (num_plane == 0) 5856 continue; 5857 5858 ret = dm_atomic_get_state(state, &dm_state); 5859 if (ret) 5860 goto cleanup; 5861 5862 old_dm_state = dm_atomic_get_old_state(state); 5863 if (!old_dm_state) { 5864 ret = -EINVAL; 5865 goto cleanup; 5866 } 5867 5868 status = dc_stream_get_status_from_state(old_dm_state->context, 5869 new_dm_crtc_state->stream); 5870 5871 update_type = dc_check_update_surfaces_for_stream(dc, updates, num_plane, 5872 &stream_update, status); 5873 5874 if (update_type > UPDATE_TYPE_MED) { 5875 update_type = UPDATE_TYPE_FULL; 5876 goto cleanup; 5877 } 5878 } 5879 5880 cleanup: 5881 kfree(updates); 5882 kfree(surface); 5883 5884 *out_type = update_type; 5885 return ret; 5886 } 5887 5888 /** 5889 * amdgpu_dm_atomic_check() - Atomic check implementation for AMDgpu DM. 5890 * @dev: The DRM device 5891 * @state: The atomic state to commit 5892 * 5893 * Validate that the given atomic state is programmable by DC into hardware. 5894 * This involves constructing a &struct dc_state reflecting the new hardware 5895 * state we wish to commit, then querying DC to see if it is programmable. It's 5896 * important not to modify the existing DC state. Otherwise, atomic_check 5897 * may unexpectedly commit hardware changes. 5898 * 5899 * When validating the DC state, it's important that the right locks are 5900 * acquired. For full updates case which removes/adds/updates streams on one 5901 * CRTC while flipping on another CRTC, acquiring global lock will guarantee 5902 * that any such full update commit will wait for completion of any outstanding 5903 * flip using DRMs synchronization events. See 5904 * dm_determine_update_type_for_commit() 5905 * 5906 * Note that DM adds the affected connectors for all CRTCs in state, when that 5907 * might not seem necessary. This is because DC stream creation requires the 5908 * DC sink, which is tied to the DRM connector state. Cleaning this up should 5909 * be possible but non-trivial - a possible TODO item. 5910 * 5911 * Return: -Error code if validation failed. 5912 */ 5913 static int amdgpu_dm_atomic_check(struct drm_device *dev, 5914 struct drm_atomic_state *state) 5915 { 5916 struct amdgpu_device *adev = dev->dev_private; 5917 struct dm_atomic_state *dm_state = NULL; 5918 struct dc *dc = adev->dm.dc; 5919 struct drm_connector *connector; 5920 struct drm_connector_state *old_con_state, *new_con_state; 5921 struct drm_crtc *crtc; 5922 struct drm_crtc_state *old_crtc_state, *new_crtc_state; 5923 struct drm_plane *plane; 5924 struct drm_plane_state *old_plane_state, *new_plane_state; 5925 enum surface_update_type update_type = UPDATE_TYPE_FAST; 5926 enum surface_update_type overall_update_type = UPDATE_TYPE_FAST; 5927 5928 int ret, i; 5929 5930 /* 5931 * This bool will be set for true for any modeset/reset 5932 * or plane update which implies non fast surface update. 5933 */ 5934 bool lock_and_validation_needed = false; 5935 5936 ret = drm_atomic_helper_check_modeset(dev, state); 5937 if (ret) 5938 goto fail; 5939 5940 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { 5941 if (!drm_atomic_crtc_needs_modeset(new_crtc_state) && 5942 !new_crtc_state->color_mgmt_changed && 5943 old_crtc_state->vrr_enabled == new_crtc_state->vrr_enabled) 5944 continue; 5945 5946 if (!new_crtc_state->enable) 5947 continue; 5948 5949 ret = drm_atomic_add_affected_connectors(state, crtc); 5950 if (ret) 5951 return ret; 5952 5953 ret = drm_atomic_add_affected_planes(state, crtc); 5954 if (ret) 5955 goto fail; 5956 } 5957 5958 /* Remove exiting planes if they are modified */ 5959 for_each_oldnew_plane_in_state_reverse(state, plane, old_plane_state, new_plane_state, i) { 5960 ret = dm_update_plane_state(dc, state, plane, 5961 old_plane_state, 5962 new_plane_state, 5963 false, 5964 &lock_and_validation_needed); 5965 if (ret) 5966 goto fail; 5967 } 5968 5969 /* Disable all crtcs which require disable */ 5970 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { 5971 ret = dm_update_crtc_state(&adev->dm, state, crtc, 5972 old_crtc_state, 5973 new_crtc_state, 5974 false, 5975 &lock_and_validation_needed); 5976 if (ret) 5977 goto fail; 5978 } 5979 5980 /* Enable all crtcs which require enable */ 5981 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { 5982 ret = dm_update_crtc_state(&adev->dm, state, crtc, 5983 old_crtc_state, 5984 new_crtc_state, 5985 true, 5986 &lock_and_validation_needed); 5987 if (ret) 5988 goto fail; 5989 } 5990 5991 /* Add new/modified planes */ 5992 for_each_oldnew_plane_in_state_reverse(state, plane, old_plane_state, new_plane_state, i) { 5993 ret = dm_update_plane_state(dc, state, plane, 5994 old_plane_state, 5995 new_plane_state, 5996 true, 5997 &lock_and_validation_needed); 5998 if (ret) 5999 goto fail; 6000 } 6001 6002 /* Run this here since we want to validate the streams we created */ 6003 ret = drm_atomic_helper_check_planes(dev, state); 6004 if (ret) 6005 goto fail; 6006 6007 /* Check scaling and underscan changes*/ 6008 /* TODO Removed scaling changes validation due to inability to commit 6009 * new stream into context w\o causing full reset. Need to 6010 * decide how to handle. 6011 */ 6012 for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) { 6013 struct dm_connector_state *dm_old_con_state = to_dm_connector_state(old_con_state); 6014 struct dm_connector_state *dm_new_con_state = to_dm_connector_state(new_con_state); 6015 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(dm_new_con_state->base.crtc); 6016 6017 /* Skip any modesets/resets */ 6018 if (!acrtc || drm_atomic_crtc_needs_modeset( 6019 drm_atomic_get_new_crtc_state(state, &acrtc->base))) 6020 continue; 6021 6022 /* Skip any thing not scale or underscan changes */ 6023 if (!is_scaling_state_different(dm_new_con_state, dm_old_con_state)) 6024 continue; 6025 6026 overall_update_type = UPDATE_TYPE_FULL; 6027 lock_and_validation_needed = true; 6028 } 6029 6030 ret = dm_determine_update_type_for_commit(dc, state, &update_type); 6031 if (ret) 6032 goto fail; 6033 6034 if (overall_update_type < update_type) 6035 overall_update_type = update_type; 6036 6037 /* 6038 * lock_and_validation_needed was an old way to determine if we need to set 6039 * the global lock. Leaving it in to check if we broke any corner cases 6040 * lock_and_validation_needed true = UPDATE_TYPE_FULL or UPDATE_TYPE_MED 6041 * lock_and_validation_needed false = UPDATE_TYPE_FAST 6042 */ 6043 if (lock_and_validation_needed && overall_update_type <= UPDATE_TYPE_FAST) 6044 WARN(1, "Global lock should be Set, overall_update_type should be UPDATE_TYPE_MED or UPDATE_TYPE_FULL"); 6045 else if (!lock_and_validation_needed && overall_update_type > UPDATE_TYPE_FAST) 6046 WARN(1, "Global lock should NOT be set, overall_update_type should be UPDATE_TYPE_FAST"); 6047 6048 6049 if (overall_update_type > UPDATE_TYPE_FAST) { 6050 ret = dm_atomic_get_state(state, &dm_state); 6051 if (ret) 6052 goto fail; 6053 6054 ret = do_aquire_global_lock(dev, state); 6055 if (ret) 6056 goto fail; 6057 6058 if (dc_validate_global_state(dc, dm_state->context) != DC_OK) { 6059 ret = -EINVAL; 6060 goto fail; 6061 } 6062 } else if (state->legacy_cursor_update) { 6063 /* 6064 * This is a fast cursor update coming from the plane update 6065 * helper, check if it can be done asynchronously for better 6066 * performance. 6067 */ 6068 state->async_update = !drm_atomic_helper_async_check(dev, state); 6069 } 6070 6071 /* Must be success */ 6072 WARN_ON(ret); 6073 return ret; 6074 6075 fail: 6076 if (ret == -EDEADLK) 6077 DRM_DEBUG_DRIVER("Atomic check stopped to avoid deadlock.\n"); 6078 else if (ret == -EINTR || ret == -EAGAIN || ret == -ERESTARTSYS) 6079 DRM_DEBUG_DRIVER("Atomic check stopped due to signal.\n"); 6080 else 6081 DRM_DEBUG_DRIVER("Atomic check failed with err: %d \n", ret); 6082 6083 return ret; 6084 } 6085 6086 static bool is_dp_capable_without_timing_msa(struct dc *dc, 6087 struct amdgpu_dm_connector *amdgpu_dm_connector) 6088 { 6089 uint8_t dpcd_data; 6090 bool capable = false; 6091 6092 if (amdgpu_dm_connector->dc_link && 6093 dm_helpers_dp_read_dpcd( 6094 NULL, 6095 amdgpu_dm_connector->dc_link, 6096 DP_DOWN_STREAM_PORT_COUNT, 6097 &dpcd_data, 6098 sizeof(dpcd_data))) { 6099 capable = (dpcd_data & DP_MSA_TIMING_PAR_IGNORED) ? true:false; 6100 } 6101 6102 return capable; 6103 } 6104 void amdgpu_dm_update_freesync_caps(struct drm_connector *connector, 6105 struct edid *edid) 6106 { 6107 int i; 6108 bool edid_check_required; 6109 struct detailed_timing *timing; 6110 struct detailed_non_pixel *data; 6111 struct detailed_data_monitor_range *range; 6112 struct amdgpu_dm_connector *amdgpu_dm_connector = 6113 to_amdgpu_dm_connector(connector); 6114 struct dm_connector_state *dm_con_state = NULL; 6115 6116 struct drm_device *dev = connector->dev; 6117 struct amdgpu_device *adev = dev->dev_private; 6118 bool freesync_capable = false; 6119 6120 if (!connector->state) { 6121 DRM_ERROR("%s - Connector has no state", __func__); 6122 goto update; 6123 } 6124 6125 if (!edid) { 6126 dm_con_state = to_dm_connector_state(connector->state); 6127 6128 amdgpu_dm_connector->min_vfreq = 0; 6129 amdgpu_dm_connector->max_vfreq = 0; 6130 amdgpu_dm_connector->pixel_clock_mhz = 0; 6131 6132 goto update; 6133 } 6134 6135 dm_con_state = to_dm_connector_state(connector->state); 6136 6137 edid_check_required = false; 6138 if (!amdgpu_dm_connector->dc_sink) { 6139 DRM_ERROR("dc_sink NULL, could not add free_sync module.\n"); 6140 goto update; 6141 } 6142 if (!adev->dm.freesync_module) 6143 goto update; 6144 /* 6145 * if edid non zero restrict freesync only for dp and edp 6146 */ 6147 if (edid) { 6148 if (amdgpu_dm_connector->dc_sink->sink_signal == SIGNAL_TYPE_DISPLAY_PORT 6149 || amdgpu_dm_connector->dc_sink->sink_signal == SIGNAL_TYPE_EDP) { 6150 edid_check_required = is_dp_capable_without_timing_msa( 6151 adev->dm.dc, 6152 amdgpu_dm_connector); 6153 } 6154 } 6155 if (edid_check_required == true && (edid->version > 1 || 6156 (edid->version == 1 && edid->revision > 1))) { 6157 for (i = 0; i < 4; i++) { 6158 6159 timing = &edid->detailed_timings[i]; 6160 data = &timing->data.other_data; 6161 range = &data->data.range; 6162 /* 6163 * Check if monitor has continuous frequency mode 6164 */ 6165 if (data->type != EDID_DETAIL_MONITOR_RANGE) 6166 continue; 6167 /* 6168 * Check for flag range limits only. If flag == 1 then 6169 * no additional timing information provided. 6170 * Default GTF, GTF Secondary curve and CVT are not 6171 * supported 6172 */ 6173 if (range->flags != 1) 6174 continue; 6175 6176 amdgpu_dm_connector->min_vfreq = range->min_vfreq; 6177 amdgpu_dm_connector->max_vfreq = range->max_vfreq; 6178 amdgpu_dm_connector->pixel_clock_mhz = 6179 range->pixel_clock_mhz * 10; 6180 break; 6181 } 6182 6183 if (amdgpu_dm_connector->max_vfreq - 6184 amdgpu_dm_connector->min_vfreq > 10) { 6185 6186 freesync_capable = true; 6187 } 6188 } 6189 6190 update: 6191 if (dm_con_state) 6192 dm_con_state->freesync_capable = freesync_capable; 6193 6194 if (connector->vrr_capable_property) 6195 drm_connector_set_vrr_capable_property(connector, 6196 freesync_capable); 6197 } 6198 6199