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 #include "dal_asic_id.h" 33 #include "dmub/dmub_srv.h" 34 #include "dc/inc/hw/dmcu.h" 35 #include "dc/inc/hw/abm.h" 36 #include "dc/dc_dmub_srv.h" 37 38 #include "vid.h" 39 #include "amdgpu.h" 40 #include "amdgpu_display.h" 41 #include "amdgpu_ucode.h" 42 #include "atom.h" 43 #include "amdgpu_dm.h" 44 #ifdef CONFIG_DRM_AMD_DC_HDCP 45 #include "amdgpu_dm_hdcp.h" 46 #include <drm/drm_hdcp.h> 47 #endif 48 #include "amdgpu_pm.h" 49 50 #include "amd_shared.h" 51 #include "amdgpu_dm_irq.h" 52 #include "dm_helpers.h" 53 #include "amdgpu_dm_mst_types.h" 54 #if defined(CONFIG_DEBUG_FS) 55 #include "amdgpu_dm_debugfs.h" 56 #endif 57 58 #include "ivsrcid/ivsrcid_vislands30.h" 59 60 #include <linux/module.h> 61 #include <linux/moduleparam.h> 62 #include <linux/version.h> 63 #include <linux/types.h> 64 #include <linux/pm_runtime.h> 65 #include <linux/pci.h> 66 #include <linux/firmware.h> 67 #include <linux/component.h> 68 69 #include <drm/drm_atomic.h> 70 #include <drm/drm_atomic_uapi.h> 71 #include <drm/drm_atomic_helper.h> 72 #include <drm/drm_dp_mst_helper.h> 73 #include <drm/drm_fb_helper.h> 74 #include <drm/drm_fourcc.h> 75 #include <drm/drm_edid.h> 76 #include <drm/drm_vblank.h> 77 #include <drm/drm_audio_component.h> 78 #include <drm/drm_hdcp.h> 79 80 #if defined(CONFIG_DRM_AMD_DC_DCN) 81 #include "ivsrcid/dcn/irqsrcs_dcn_1_0.h" 82 83 #include "dcn/dcn_1_0_offset.h" 84 #include "dcn/dcn_1_0_sh_mask.h" 85 #include "soc15_hw_ip.h" 86 #include "vega10_ip_offset.h" 87 88 #include "soc15_common.h" 89 #endif 90 91 #include "modules/inc/mod_freesync.h" 92 #include "modules/power/power_helpers.h" 93 #include "modules/inc/mod_info_packet.h" 94 95 #define FIRMWARE_RENOIR_DMUB "amdgpu/renoir_dmcub.bin" 96 MODULE_FIRMWARE(FIRMWARE_RENOIR_DMUB); 97 98 #define FIRMWARE_RAVEN_DMCU "amdgpu/raven_dmcu.bin" 99 MODULE_FIRMWARE(FIRMWARE_RAVEN_DMCU); 100 101 #define FIRMWARE_NAVI12_DMCU "amdgpu/navi12_dmcu.bin" 102 MODULE_FIRMWARE(FIRMWARE_NAVI12_DMCU); 103 104 /* Number of bytes in PSP header for firmware. */ 105 #define PSP_HEADER_BYTES 0x100 106 107 /* Number of bytes in PSP footer for firmware. */ 108 #define PSP_FOOTER_BYTES 0x100 109 110 /** 111 * DOC: overview 112 * 113 * The AMDgpu display manager, **amdgpu_dm** (or even simpler, 114 * **dm**) sits between DRM and DC. It acts as a liason, converting DRM 115 * requests into DC requests, and DC responses into DRM responses. 116 * 117 * The root control structure is &struct amdgpu_display_manager. 118 */ 119 120 /* basic init/fini API */ 121 static int amdgpu_dm_init(struct amdgpu_device *adev); 122 static void amdgpu_dm_fini(struct amdgpu_device *adev); 123 124 /* 125 * initializes drm_device display related structures, based on the information 126 * provided by DAL. The drm strcutures are: drm_crtc, drm_connector, 127 * drm_encoder, drm_mode_config 128 * 129 * Returns 0 on success 130 */ 131 static int amdgpu_dm_initialize_drm_device(struct amdgpu_device *adev); 132 /* removes and deallocates the drm structures, created by the above function */ 133 static void amdgpu_dm_destroy_drm_device(struct amdgpu_display_manager *dm); 134 135 static int amdgpu_dm_plane_init(struct amdgpu_display_manager *dm, 136 struct drm_plane *plane, 137 unsigned long possible_crtcs, 138 const struct dc_plane_cap *plane_cap); 139 static int amdgpu_dm_crtc_init(struct amdgpu_display_manager *dm, 140 struct drm_plane *plane, 141 uint32_t link_index); 142 static int amdgpu_dm_connector_init(struct amdgpu_display_manager *dm, 143 struct amdgpu_dm_connector *amdgpu_dm_connector, 144 uint32_t link_index, 145 struct amdgpu_encoder *amdgpu_encoder); 146 static int amdgpu_dm_encoder_init(struct drm_device *dev, 147 struct amdgpu_encoder *aencoder, 148 uint32_t link_index); 149 150 static int amdgpu_dm_connector_get_modes(struct drm_connector *connector); 151 152 static int amdgpu_dm_atomic_commit(struct drm_device *dev, 153 struct drm_atomic_state *state, 154 bool nonblock); 155 156 static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state); 157 158 static int amdgpu_dm_atomic_check(struct drm_device *dev, 159 struct drm_atomic_state *state); 160 161 static void handle_cursor_update(struct drm_plane *plane, 162 struct drm_plane_state *old_plane_state); 163 164 static void amdgpu_dm_set_psr_caps(struct dc_link *link); 165 static bool amdgpu_dm_psr_enable(struct dc_stream_state *stream); 166 static bool amdgpu_dm_link_setup_psr(struct dc_stream_state *stream); 167 static bool amdgpu_dm_psr_disable(struct dc_stream_state *stream); 168 169 170 /* 171 * dm_vblank_get_counter 172 * 173 * @brief 174 * Get counter for number of vertical blanks 175 * 176 * @param 177 * struct amdgpu_device *adev - [in] desired amdgpu device 178 * int disp_idx - [in] which CRTC to get the counter from 179 * 180 * @return 181 * Counter for vertical blanks 182 */ 183 static u32 dm_vblank_get_counter(struct amdgpu_device *adev, int crtc) 184 { 185 if (crtc >= adev->mode_info.num_crtc) 186 return 0; 187 else { 188 struct amdgpu_crtc *acrtc = adev->mode_info.crtcs[crtc]; 189 struct dm_crtc_state *acrtc_state = to_dm_crtc_state( 190 acrtc->base.state); 191 192 193 if (acrtc_state->stream == NULL) { 194 DRM_ERROR("dc_stream_state is NULL for crtc '%d'!\n", 195 crtc); 196 return 0; 197 } 198 199 return dc_stream_get_vblank_counter(acrtc_state->stream); 200 } 201 } 202 203 static int dm_crtc_get_scanoutpos(struct amdgpu_device *adev, int crtc, 204 u32 *vbl, u32 *position) 205 { 206 uint32_t v_blank_start, v_blank_end, h_position, v_position; 207 208 if ((crtc < 0) || (crtc >= adev->mode_info.num_crtc)) 209 return -EINVAL; 210 else { 211 struct amdgpu_crtc *acrtc = adev->mode_info.crtcs[crtc]; 212 struct dm_crtc_state *acrtc_state = to_dm_crtc_state( 213 acrtc->base.state); 214 215 if (acrtc_state->stream == NULL) { 216 DRM_ERROR("dc_stream_state is NULL for crtc '%d'!\n", 217 crtc); 218 return 0; 219 } 220 221 /* 222 * TODO rework base driver to use values directly. 223 * for now parse it back into reg-format 224 */ 225 dc_stream_get_scanoutpos(acrtc_state->stream, 226 &v_blank_start, 227 &v_blank_end, 228 &h_position, 229 &v_position); 230 231 *position = v_position | (h_position << 16); 232 *vbl = v_blank_start | (v_blank_end << 16); 233 } 234 235 return 0; 236 } 237 238 static bool dm_is_idle(void *handle) 239 { 240 /* XXX todo */ 241 return true; 242 } 243 244 static int dm_wait_for_idle(void *handle) 245 { 246 /* XXX todo */ 247 return 0; 248 } 249 250 static bool dm_check_soft_reset(void *handle) 251 { 252 return false; 253 } 254 255 static int dm_soft_reset(void *handle) 256 { 257 /* XXX todo */ 258 return 0; 259 } 260 261 static struct amdgpu_crtc * 262 get_crtc_by_otg_inst(struct amdgpu_device *adev, 263 int otg_inst) 264 { 265 struct drm_device *dev = adev->ddev; 266 struct drm_crtc *crtc; 267 struct amdgpu_crtc *amdgpu_crtc; 268 269 if (otg_inst == -1) { 270 WARN_ON(1); 271 return adev->mode_info.crtcs[0]; 272 } 273 274 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 275 amdgpu_crtc = to_amdgpu_crtc(crtc); 276 277 if (amdgpu_crtc->otg_inst == otg_inst) 278 return amdgpu_crtc; 279 } 280 281 return NULL; 282 } 283 284 static inline bool amdgpu_dm_vrr_active(struct dm_crtc_state *dm_state) 285 { 286 return dm_state->freesync_config.state == VRR_STATE_ACTIVE_VARIABLE || 287 dm_state->freesync_config.state == VRR_STATE_ACTIVE_FIXED; 288 } 289 290 /** 291 * dm_pflip_high_irq() - Handle pageflip interrupt 292 * @interrupt_params: ignored 293 * 294 * Handles the pageflip interrupt by notifying all interested parties 295 * that the pageflip has been completed. 296 */ 297 static void dm_pflip_high_irq(void *interrupt_params) 298 { 299 struct amdgpu_crtc *amdgpu_crtc; 300 struct common_irq_params *irq_params = interrupt_params; 301 struct amdgpu_device *adev = irq_params->adev; 302 unsigned long flags; 303 struct drm_pending_vblank_event *e; 304 struct dm_crtc_state *acrtc_state; 305 uint32_t vpos, hpos, v_blank_start, v_blank_end; 306 bool vrr_active; 307 308 amdgpu_crtc = get_crtc_by_otg_inst(adev, irq_params->irq_src - IRQ_TYPE_PFLIP); 309 310 /* IRQ could occur when in initial stage */ 311 /* TODO work and BO cleanup */ 312 if (amdgpu_crtc == NULL) { 313 DRM_DEBUG_DRIVER("CRTC is null, returning.\n"); 314 return; 315 } 316 317 spin_lock_irqsave(&adev->ddev->event_lock, flags); 318 319 if (amdgpu_crtc->pflip_status != AMDGPU_FLIP_SUBMITTED){ 320 DRM_DEBUG_DRIVER("amdgpu_crtc->pflip_status = %d !=AMDGPU_FLIP_SUBMITTED(%d) on crtc:%d[%p] \n", 321 amdgpu_crtc->pflip_status, 322 AMDGPU_FLIP_SUBMITTED, 323 amdgpu_crtc->crtc_id, 324 amdgpu_crtc); 325 spin_unlock_irqrestore(&adev->ddev->event_lock, flags); 326 return; 327 } 328 329 /* page flip completed. */ 330 e = amdgpu_crtc->event; 331 amdgpu_crtc->event = NULL; 332 333 if (!e) 334 WARN_ON(1); 335 336 acrtc_state = to_dm_crtc_state(amdgpu_crtc->base.state); 337 vrr_active = amdgpu_dm_vrr_active(acrtc_state); 338 339 /* Fixed refresh rate, or VRR scanout position outside front-porch? */ 340 if (!vrr_active || 341 !dc_stream_get_scanoutpos(acrtc_state->stream, &v_blank_start, 342 &v_blank_end, &hpos, &vpos) || 343 (vpos < v_blank_start)) { 344 /* Update to correct count and vblank timestamp if racing with 345 * vblank irq. This also updates to the correct vblank timestamp 346 * even in VRR mode, as scanout is past the front-porch atm. 347 */ 348 drm_crtc_accurate_vblank_count(&amdgpu_crtc->base); 349 350 /* Wake up userspace by sending the pageflip event with proper 351 * count and timestamp of vblank of flip completion. 352 */ 353 if (e) { 354 drm_crtc_send_vblank_event(&amdgpu_crtc->base, e); 355 356 /* Event sent, so done with vblank for this flip */ 357 drm_crtc_vblank_put(&amdgpu_crtc->base); 358 } 359 } else if (e) { 360 /* VRR active and inside front-porch: vblank count and 361 * timestamp for pageflip event will only be up to date after 362 * drm_crtc_handle_vblank() has been executed from late vblank 363 * irq handler after start of back-porch (vline 0). We queue the 364 * pageflip event for send-out by drm_crtc_handle_vblank() with 365 * updated timestamp and count, once it runs after us. 366 * 367 * We need to open-code this instead of using the helper 368 * drm_crtc_arm_vblank_event(), as that helper would 369 * call drm_crtc_accurate_vblank_count(), which we must 370 * not call in VRR mode while we are in front-porch! 371 */ 372 373 /* sequence will be replaced by real count during send-out. */ 374 e->sequence = drm_crtc_vblank_count(&amdgpu_crtc->base); 375 e->pipe = amdgpu_crtc->crtc_id; 376 377 list_add_tail(&e->base.link, &adev->ddev->vblank_event_list); 378 e = NULL; 379 } 380 381 /* Keep track of vblank of this flip for flip throttling. We use the 382 * cooked hw counter, as that one incremented at start of this vblank 383 * of pageflip completion, so last_flip_vblank is the forbidden count 384 * for queueing new pageflips if vsync + VRR is enabled. 385 */ 386 amdgpu_crtc->last_flip_vblank = 387 amdgpu_get_vblank_counter_kms(&amdgpu_crtc->base); 388 389 amdgpu_crtc->pflip_status = AMDGPU_FLIP_NONE; 390 spin_unlock_irqrestore(&adev->ddev->event_lock, flags); 391 392 DRM_DEBUG_DRIVER("crtc:%d[%p], pflip_stat:AMDGPU_FLIP_NONE, vrr[%d]-fp %d\n", 393 amdgpu_crtc->crtc_id, amdgpu_crtc, 394 vrr_active, (int) !e); 395 } 396 397 static void dm_vupdate_high_irq(void *interrupt_params) 398 { 399 struct common_irq_params *irq_params = interrupt_params; 400 struct amdgpu_device *adev = irq_params->adev; 401 struct amdgpu_crtc *acrtc; 402 struct dm_crtc_state *acrtc_state; 403 unsigned long flags; 404 405 acrtc = get_crtc_by_otg_inst(adev, irq_params->irq_src - IRQ_TYPE_VUPDATE); 406 407 if (acrtc) { 408 acrtc_state = to_dm_crtc_state(acrtc->base.state); 409 410 DRM_DEBUG_VBL("crtc:%d, vupdate-vrr:%d\n", 411 acrtc->crtc_id, 412 amdgpu_dm_vrr_active(acrtc_state)); 413 414 /* Core vblank handling is done here after end of front-porch in 415 * vrr mode, as vblank timestamping will give valid results 416 * while now done after front-porch. This will also deliver 417 * page-flip completion events that have been queued to us 418 * if a pageflip happened inside front-porch. 419 */ 420 if (amdgpu_dm_vrr_active(acrtc_state)) { 421 drm_crtc_handle_vblank(&acrtc->base); 422 423 /* BTR processing for pre-DCE12 ASICs */ 424 if (acrtc_state->stream && 425 adev->family < AMDGPU_FAMILY_AI) { 426 spin_lock_irqsave(&adev->ddev->event_lock, flags); 427 mod_freesync_handle_v_update( 428 adev->dm.freesync_module, 429 acrtc_state->stream, 430 &acrtc_state->vrr_params); 431 432 dc_stream_adjust_vmin_vmax( 433 adev->dm.dc, 434 acrtc_state->stream, 435 &acrtc_state->vrr_params.adjust); 436 spin_unlock_irqrestore(&adev->ddev->event_lock, flags); 437 } 438 } 439 } 440 } 441 442 /** 443 * dm_crtc_high_irq() - Handles CRTC interrupt 444 * @interrupt_params: used for determining the CRTC instance 445 * 446 * Handles the CRTC/VSYNC interrupt by notfying DRM's VBLANK 447 * event handler. 448 */ 449 static void dm_crtc_high_irq(void *interrupt_params) 450 { 451 struct common_irq_params *irq_params = interrupt_params; 452 struct amdgpu_device *adev = irq_params->adev; 453 struct amdgpu_crtc *acrtc; 454 struct dm_crtc_state *acrtc_state; 455 unsigned long flags; 456 457 acrtc = get_crtc_by_otg_inst(adev, irq_params->irq_src - IRQ_TYPE_VBLANK); 458 if (!acrtc) 459 return; 460 461 acrtc_state = to_dm_crtc_state(acrtc->base.state); 462 463 DRM_DEBUG_VBL("crtc:%d, vupdate-vrr:%d, planes:%d\n", acrtc->crtc_id, 464 amdgpu_dm_vrr_active(acrtc_state), 465 acrtc_state->active_planes); 466 467 /** 468 * Core vblank handling at start of front-porch is only possible 469 * in non-vrr mode, as only there vblank timestamping will give 470 * valid results while done in front-porch. Otherwise defer it 471 * to dm_vupdate_high_irq after end of front-porch. 472 */ 473 if (!amdgpu_dm_vrr_active(acrtc_state)) 474 drm_crtc_handle_vblank(&acrtc->base); 475 476 /** 477 * Following stuff must happen at start of vblank, for crc 478 * computation and below-the-range btr support in vrr mode. 479 */ 480 amdgpu_dm_crtc_handle_crc_irq(&acrtc->base); 481 482 /* BTR updates need to happen before VUPDATE on Vega and above. */ 483 if (adev->family < AMDGPU_FAMILY_AI) 484 return; 485 486 spin_lock_irqsave(&adev->ddev->event_lock, flags); 487 488 if (acrtc_state->stream && acrtc_state->vrr_params.supported && 489 acrtc_state->freesync_config.state == VRR_STATE_ACTIVE_VARIABLE) { 490 mod_freesync_handle_v_update(adev->dm.freesync_module, 491 acrtc_state->stream, 492 &acrtc_state->vrr_params); 493 494 dc_stream_adjust_vmin_vmax(adev->dm.dc, acrtc_state->stream, 495 &acrtc_state->vrr_params.adjust); 496 } 497 498 /* 499 * If there aren't any active_planes then DCH HUBP may be clock-gated. 500 * In that case, pageflip completion interrupts won't fire and pageflip 501 * completion events won't get delivered. Prevent this by sending 502 * pending pageflip events from here if a flip is still pending. 503 * 504 * If any planes are enabled, use dm_pflip_high_irq() instead, to 505 * avoid race conditions between flip programming and completion, 506 * which could cause too early flip completion events. 507 */ 508 if (adev->family >= AMDGPU_FAMILY_RV && 509 acrtc->pflip_status == AMDGPU_FLIP_SUBMITTED && 510 acrtc_state->active_planes == 0) { 511 if (acrtc->event) { 512 drm_crtc_send_vblank_event(&acrtc->base, acrtc->event); 513 acrtc->event = NULL; 514 drm_crtc_vblank_put(&acrtc->base); 515 } 516 acrtc->pflip_status = AMDGPU_FLIP_NONE; 517 } 518 519 spin_unlock_irqrestore(&adev->ddev->event_lock, flags); 520 } 521 522 static int dm_set_clockgating_state(void *handle, 523 enum amd_clockgating_state state) 524 { 525 return 0; 526 } 527 528 static int dm_set_powergating_state(void *handle, 529 enum amd_powergating_state state) 530 { 531 return 0; 532 } 533 534 /* Prototypes of private functions */ 535 static int dm_early_init(void* handle); 536 537 /* Allocate memory for FBC compressed data */ 538 static void amdgpu_dm_fbc_init(struct drm_connector *connector) 539 { 540 struct drm_device *dev = connector->dev; 541 struct amdgpu_device *adev = dev->dev_private; 542 struct dm_comressor_info *compressor = &adev->dm.compressor; 543 struct amdgpu_dm_connector *aconn = to_amdgpu_dm_connector(connector); 544 struct drm_display_mode *mode; 545 unsigned long max_size = 0; 546 547 if (adev->dm.dc->fbc_compressor == NULL) 548 return; 549 550 if (aconn->dc_link->connector_signal != SIGNAL_TYPE_EDP) 551 return; 552 553 if (compressor->bo_ptr) 554 return; 555 556 557 list_for_each_entry(mode, &connector->modes, head) { 558 if (max_size < mode->htotal * mode->vtotal) 559 max_size = mode->htotal * mode->vtotal; 560 } 561 562 if (max_size) { 563 int r = amdgpu_bo_create_kernel(adev, max_size * 4, PAGE_SIZE, 564 AMDGPU_GEM_DOMAIN_GTT, &compressor->bo_ptr, 565 &compressor->gpu_addr, &compressor->cpu_addr); 566 567 if (r) 568 DRM_ERROR("DM: Failed to initialize FBC\n"); 569 else { 570 adev->dm.dc->ctx->fbc_gpu_addr = compressor->gpu_addr; 571 DRM_INFO("DM: FBC alloc %lu\n", max_size*4); 572 } 573 574 } 575 576 } 577 578 static int amdgpu_dm_audio_component_get_eld(struct device *kdev, int port, 579 int pipe, bool *enabled, 580 unsigned char *buf, int max_bytes) 581 { 582 struct drm_device *dev = dev_get_drvdata(kdev); 583 struct amdgpu_device *adev = dev->dev_private; 584 struct drm_connector *connector; 585 struct drm_connector_list_iter conn_iter; 586 struct amdgpu_dm_connector *aconnector; 587 int ret = 0; 588 589 *enabled = false; 590 591 mutex_lock(&adev->dm.audio_lock); 592 593 drm_connector_list_iter_begin(dev, &conn_iter); 594 drm_for_each_connector_iter(connector, &conn_iter) { 595 aconnector = to_amdgpu_dm_connector(connector); 596 if (aconnector->audio_inst != port) 597 continue; 598 599 *enabled = true; 600 ret = drm_eld_size(connector->eld); 601 memcpy(buf, connector->eld, min(max_bytes, ret)); 602 603 break; 604 } 605 drm_connector_list_iter_end(&conn_iter); 606 607 mutex_unlock(&adev->dm.audio_lock); 608 609 DRM_DEBUG_KMS("Get ELD : idx=%d ret=%d en=%d\n", port, ret, *enabled); 610 611 return ret; 612 } 613 614 static const struct drm_audio_component_ops amdgpu_dm_audio_component_ops = { 615 .get_eld = amdgpu_dm_audio_component_get_eld, 616 }; 617 618 static int amdgpu_dm_audio_component_bind(struct device *kdev, 619 struct device *hda_kdev, void *data) 620 { 621 struct drm_device *dev = dev_get_drvdata(kdev); 622 struct amdgpu_device *adev = dev->dev_private; 623 struct drm_audio_component *acomp = data; 624 625 acomp->ops = &amdgpu_dm_audio_component_ops; 626 acomp->dev = kdev; 627 adev->dm.audio_component = acomp; 628 629 return 0; 630 } 631 632 static void amdgpu_dm_audio_component_unbind(struct device *kdev, 633 struct device *hda_kdev, void *data) 634 { 635 struct drm_device *dev = dev_get_drvdata(kdev); 636 struct amdgpu_device *adev = dev->dev_private; 637 struct drm_audio_component *acomp = data; 638 639 acomp->ops = NULL; 640 acomp->dev = NULL; 641 adev->dm.audio_component = NULL; 642 } 643 644 static const struct component_ops amdgpu_dm_audio_component_bind_ops = { 645 .bind = amdgpu_dm_audio_component_bind, 646 .unbind = amdgpu_dm_audio_component_unbind, 647 }; 648 649 static int amdgpu_dm_audio_init(struct amdgpu_device *adev) 650 { 651 int i, ret; 652 653 if (!amdgpu_audio) 654 return 0; 655 656 adev->mode_info.audio.enabled = true; 657 658 adev->mode_info.audio.num_pins = adev->dm.dc->res_pool->audio_count; 659 660 for (i = 0; i < adev->mode_info.audio.num_pins; i++) { 661 adev->mode_info.audio.pin[i].channels = -1; 662 adev->mode_info.audio.pin[i].rate = -1; 663 adev->mode_info.audio.pin[i].bits_per_sample = -1; 664 adev->mode_info.audio.pin[i].status_bits = 0; 665 adev->mode_info.audio.pin[i].category_code = 0; 666 adev->mode_info.audio.pin[i].connected = false; 667 adev->mode_info.audio.pin[i].id = 668 adev->dm.dc->res_pool->audios[i]->inst; 669 adev->mode_info.audio.pin[i].offset = 0; 670 } 671 672 ret = component_add(adev->dev, &amdgpu_dm_audio_component_bind_ops); 673 if (ret < 0) 674 return ret; 675 676 adev->dm.audio_registered = true; 677 678 return 0; 679 } 680 681 static void amdgpu_dm_audio_fini(struct amdgpu_device *adev) 682 { 683 if (!amdgpu_audio) 684 return; 685 686 if (!adev->mode_info.audio.enabled) 687 return; 688 689 if (adev->dm.audio_registered) { 690 component_del(adev->dev, &amdgpu_dm_audio_component_bind_ops); 691 adev->dm.audio_registered = false; 692 } 693 694 /* TODO: Disable audio? */ 695 696 adev->mode_info.audio.enabled = false; 697 } 698 699 void amdgpu_dm_audio_eld_notify(struct amdgpu_device *adev, int pin) 700 { 701 struct drm_audio_component *acomp = adev->dm.audio_component; 702 703 if (acomp && acomp->audio_ops && acomp->audio_ops->pin_eld_notify) { 704 DRM_DEBUG_KMS("Notify ELD: %d\n", pin); 705 706 acomp->audio_ops->pin_eld_notify(acomp->audio_ops->audio_ptr, 707 pin, -1); 708 } 709 } 710 711 static int dm_dmub_hw_init(struct amdgpu_device *adev) 712 { 713 const struct dmcub_firmware_header_v1_0 *hdr; 714 struct dmub_srv *dmub_srv = adev->dm.dmub_srv; 715 struct dmub_srv_fb_info *fb_info = adev->dm.dmub_fb_info; 716 const struct firmware *dmub_fw = adev->dm.dmub_fw; 717 struct dmcu *dmcu = adev->dm.dc->res_pool->dmcu; 718 struct abm *abm = adev->dm.dc->res_pool->abm; 719 struct dmub_srv_hw_params hw_params; 720 enum dmub_status status; 721 const unsigned char *fw_inst_const, *fw_bss_data; 722 uint32_t i, fw_inst_const_size, fw_bss_data_size; 723 bool has_hw_support; 724 725 if (!dmub_srv) 726 /* DMUB isn't supported on the ASIC. */ 727 return 0; 728 729 if (!fb_info) { 730 DRM_ERROR("No framebuffer info for DMUB service.\n"); 731 return -EINVAL; 732 } 733 734 if (!dmub_fw) { 735 /* Firmware required for DMUB support. */ 736 DRM_ERROR("No firmware provided for DMUB.\n"); 737 return -EINVAL; 738 } 739 740 status = dmub_srv_has_hw_support(dmub_srv, &has_hw_support); 741 if (status != DMUB_STATUS_OK) { 742 DRM_ERROR("Error checking HW support for DMUB: %d\n", status); 743 return -EINVAL; 744 } 745 746 if (!has_hw_support) { 747 DRM_INFO("DMUB unsupported on ASIC\n"); 748 return 0; 749 } 750 751 hdr = (const struct dmcub_firmware_header_v1_0 *)dmub_fw->data; 752 753 fw_inst_const = dmub_fw->data + 754 le32_to_cpu(hdr->header.ucode_array_offset_bytes) + 755 PSP_HEADER_BYTES; 756 757 fw_bss_data = dmub_fw->data + 758 le32_to_cpu(hdr->header.ucode_array_offset_bytes) + 759 le32_to_cpu(hdr->inst_const_bytes); 760 761 /* Copy firmware and bios info into FB memory. */ 762 fw_inst_const_size = le32_to_cpu(hdr->inst_const_bytes) - 763 PSP_HEADER_BYTES - PSP_FOOTER_BYTES; 764 765 fw_bss_data_size = le32_to_cpu(hdr->bss_data_bytes); 766 767 /* if adev->firmware.load_type == AMDGPU_FW_LOAD_PSP, 768 * amdgpu_ucode_init_single_fw will load dmub firmware 769 * fw_inst_const part to cw0; otherwise, the firmware back door load 770 * will be done by dm_dmub_hw_init 771 */ 772 if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP) { 773 memcpy(fb_info->fb[DMUB_WINDOW_0_INST_CONST].cpu_addr, fw_inst_const, 774 fw_inst_const_size); 775 } 776 777 if (fw_bss_data_size) 778 memcpy(fb_info->fb[DMUB_WINDOW_2_BSS_DATA].cpu_addr, 779 fw_bss_data, fw_bss_data_size); 780 781 /* Copy firmware bios info into FB memory. */ 782 memcpy(fb_info->fb[DMUB_WINDOW_3_VBIOS].cpu_addr, adev->bios, 783 adev->bios_size); 784 785 /* Reset regions that need to be reset. */ 786 memset(fb_info->fb[DMUB_WINDOW_4_MAILBOX].cpu_addr, 0, 787 fb_info->fb[DMUB_WINDOW_4_MAILBOX].size); 788 789 memset(fb_info->fb[DMUB_WINDOW_5_TRACEBUFF].cpu_addr, 0, 790 fb_info->fb[DMUB_WINDOW_5_TRACEBUFF].size); 791 792 memset(fb_info->fb[DMUB_WINDOW_6_FW_STATE].cpu_addr, 0, 793 fb_info->fb[DMUB_WINDOW_6_FW_STATE].size); 794 795 /* Initialize hardware. */ 796 memset(&hw_params, 0, sizeof(hw_params)); 797 hw_params.fb_base = adev->gmc.fb_start; 798 hw_params.fb_offset = adev->gmc.aper_base; 799 800 /* backdoor load firmware and trigger dmub running */ 801 if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP) 802 hw_params.load_inst_const = true; 803 804 if (dmcu) 805 hw_params.psp_version = dmcu->psp_version; 806 807 for (i = 0; i < fb_info->num_fb; ++i) 808 hw_params.fb[i] = &fb_info->fb[i]; 809 810 status = dmub_srv_hw_init(dmub_srv, &hw_params); 811 if (status != DMUB_STATUS_OK) { 812 DRM_ERROR("Error initializing DMUB HW: %d\n", status); 813 return -EINVAL; 814 } 815 816 /* Wait for firmware load to finish. */ 817 status = dmub_srv_wait_for_auto_load(dmub_srv, 100000); 818 if (status != DMUB_STATUS_OK) 819 DRM_WARN("Wait for DMUB auto-load failed: %d\n", status); 820 821 /* Init DMCU and ABM if available. */ 822 if (dmcu && abm) { 823 dmcu->funcs->dmcu_init(dmcu); 824 abm->dmcu_is_running = dmcu->funcs->is_dmcu_initialized(dmcu); 825 } 826 827 adev->dm.dc->ctx->dmub_srv = dc_dmub_srv_create(adev->dm.dc, dmub_srv); 828 if (!adev->dm.dc->ctx->dmub_srv) { 829 DRM_ERROR("Couldn't allocate DC DMUB server!\n"); 830 return -ENOMEM; 831 } 832 833 DRM_INFO("DMUB hardware initialized: version=0x%08X\n", 834 adev->dm.dmcub_fw_version); 835 836 return 0; 837 } 838 839 static int amdgpu_dm_init(struct amdgpu_device *adev) 840 { 841 struct dc_init_data init_data; 842 #ifdef CONFIG_DRM_AMD_DC_HDCP 843 struct dc_callback_init init_params; 844 #endif 845 int r; 846 847 adev->dm.ddev = adev->ddev; 848 adev->dm.adev = adev; 849 850 /* Zero all the fields */ 851 memset(&init_data, 0, sizeof(init_data)); 852 #ifdef CONFIG_DRM_AMD_DC_HDCP 853 memset(&init_params, 0, sizeof(init_params)); 854 #endif 855 856 mutex_init(&adev->dm.dc_lock); 857 mutex_init(&adev->dm.audio_lock); 858 859 if(amdgpu_dm_irq_init(adev)) { 860 DRM_ERROR("amdgpu: failed to initialize DM IRQ support.\n"); 861 goto error; 862 } 863 864 init_data.asic_id.chip_family = adev->family; 865 866 init_data.asic_id.pci_revision_id = adev->pdev->revision; 867 init_data.asic_id.hw_internal_rev = adev->external_rev_id; 868 869 init_data.asic_id.vram_width = adev->gmc.vram_width; 870 /* TODO: initialize init_data.asic_id.vram_type here!!!! */ 871 init_data.asic_id.atombios_base_address = 872 adev->mode_info.atom_context->bios; 873 874 init_data.driver = adev; 875 876 adev->dm.cgs_device = amdgpu_cgs_create_device(adev); 877 878 if (!adev->dm.cgs_device) { 879 DRM_ERROR("amdgpu: failed to create cgs device.\n"); 880 goto error; 881 } 882 883 init_data.cgs_device = adev->dm.cgs_device; 884 885 init_data.dce_environment = DCE_ENV_PRODUCTION_DRV; 886 887 switch (adev->asic_type) { 888 case CHIP_CARRIZO: 889 case CHIP_STONEY: 890 case CHIP_RAVEN: 891 case CHIP_RENOIR: 892 init_data.flags.gpu_vm_support = true; 893 break; 894 default: 895 break; 896 } 897 898 if (amdgpu_dc_feature_mask & DC_FBC_MASK) 899 init_data.flags.fbc_support = true; 900 901 if (amdgpu_dc_feature_mask & DC_MULTI_MON_PP_MCLK_SWITCH_MASK) 902 init_data.flags.multi_mon_pp_mclk_switch = true; 903 904 if (amdgpu_dc_feature_mask & DC_DISABLE_FRACTIONAL_PWM_MASK) 905 init_data.flags.disable_fractional_pwm = true; 906 907 init_data.flags.power_down_display_on_boot = true; 908 909 init_data.soc_bounding_box = adev->dm.soc_bounding_box; 910 911 /* Display Core create. */ 912 adev->dm.dc = dc_create(&init_data); 913 914 if (adev->dm.dc) { 915 DRM_INFO("Display Core initialized with v%s!\n", DC_VER); 916 } else { 917 DRM_INFO("Display Core failed to initialize with v%s!\n", DC_VER); 918 goto error; 919 } 920 921 if (amdgpu_dc_debug_mask & DC_DISABLE_PIPE_SPLIT) { 922 adev->dm.dc->debug.force_single_disp_pipe_split = false; 923 adev->dm.dc->debug.pipe_split_policy = MPC_SPLIT_AVOID; 924 } 925 926 if (adev->asic_type != CHIP_CARRIZO && adev->asic_type != CHIP_STONEY) 927 adev->dm.dc->debug.disable_stutter = amdgpu_pp_feature_mask & PP_STUTTER_MODE ? false : true; 928 929 if (amdgpu_dc_debug_mask & DC_DISABLE_STUTTER) 930 adev->dm.dc->debug.disable_stutter = true; 931 932 if (amdgpu_dc_debug_mask & DC_DISABLE_DSC) 933 adev->dm.dc->debug.disable_dsc = true; 934 935 if (amdgpu_dc_debug_mask & DC_DISABLE_CLOCK_GATING) 936 adev->dm.dc->debug.disable_clock_gate = true; 937 938 r = dm_dmub_hw_init(adev); 939 if (r) { 940 DRM_ERROR("DMUB interface failed to initialize: status=%d\n", r); 941 goto error; 942 } 943 944 dc_hardware_init(adev->dm.dc); 945 946 adev->dm.freesync_module = mod_freesync_create(adev->dm.dc); 947 if (!adev->dm.freesync_module) { 948 DRM_ERROR( 949 "amdgpu: failed to initialize freesync_module.\n"); 950 } else 951 DRM_DEBUG_DRIVER("amdgpu: freesync_module init done %p.\n", 952 adev->dm.freesync_module); 953 954 amdgpu_dm_init_color_mod(); 955 956 #ifdef CONFIG_DRM_AMD_DC_HDCP 957 if (adev->asic_type >= CHIP_RAVEN) { 958 adev->dm.hdcp_workqueue = hdcp_create_workqueue(adev, &init_params.cp_psp, adev->dm.dc); 959 960 if (!adev->dm.hdcp_workqueue) 961 DRM_ERROR("amdgpu: failed to initialize hdcp_workqueue.\n"); 962 else 963 DRM_DEBUG_DRIVER("amdgpu: hdcp_workqueue init done %p.\n", adev->dm.hdcp_workqueue); 964 965 dc_init_callbacks(adev->dm.dc, &init_params); 966 } 967 #endif 968 if (amdgpu_dm_initialize_drm_device(adev)) { 969 DRM_ERROR( 970 "amdgpu: failed to initialize sw for display support.\n"); 971 goto error; 972 } 973 974 /* Update the actual used number of crtc */ 975 adev->mode_info.num_crtc = adev->dm.display_indexes_num; 976 977 /* TODO: Add_display_info? */ 978 979 /* TODO use dynamic cursor width */ 980 adev->ddev->mode_config.cursor_width = adev->dm.dc->caps.max_cursor_size; 981 adev->ddev->mode_config.cursor_height = adev->dm.dc->caps.max_cursor_size; 982 983 if (drm_vblank_init(adev->ddev, adev->dm.display_indexes_num)) { 984 DRM_ERROR( 985 "amdgpu: failed to initialize sw for display support.\n"); 986 goto error; 987 } 988 989 DRM_DEBUG_DRIVER("KMS initialized.\n"); 990 991 return 0; 992 error: 993 amdgpu_dm_fini(adev); 994 995 return -EINVAL; 996 } 997 998 static void amdgpu_dm_fini(struct amdgpu_device *adev) 999 { 1000 amdgpu_dm_audio_fini(adev); 1001 1002 amdgpu_dm_destroy_drm_device(&adev->dm); 1003 1004 #ifdef CONFIG_DRM_AMD_DC_HDCP 1005 if (adev->dm.hdcp_workqueue) { 1006 hdcp_destroy(adev->dm.hdcp_workqueue); 1007 adev->dm.hdcp_workqueue = NULL; 1008 } 1009 1010 if (adev->dm.dc) 1011 dc_deinit_callbacks(adev->dm.dc); 1012 #endif 1013 if (adev->dm.dc->ctx->dmub_srv) { 1014 dc_dmub_srv_destroy(&adev->dm.dc->ctx->dmub_srv); 1015 adev->dm.dc->ctx->dmub_srv = NULL; 1016 } 1017 1018 if (adev->dm.dmub_bo) 1019 amdgpu_bo_free_kernel(&adev->dm.dmub_bo, 1020 &adev->dm.dmub_bo_gpu_addr, 1021 &adev->dm.dmub_bo_cpu_addr); 1022 1023 /* DC Destroy TODO: Replace destroy DAL */ 1024 if (adev->dm.dc) 1025 dc_destroy(&adev->dm.dc); 1026 /* 1027 * TODO: pageflip, vlank interrupt 1028 * 1029 * amdgpu_dm_irq_fini(adev); 1030 */ 1031 1032 if (adev->dm.cgs_device) { 1033 amdgpu_cgs_destroy_device(adev->dm.cgs_device); 1034 adev->dm.cgs_device = NULL; 1035 } 1036 if (adev->dm.freesync_module) { 1037 mod_freesync_destroy(adev->dm.freesync_module); 1038 adev->dm.freesync_module = NULL; 1039 } 1040 1041 mutex_destroy(&adev->dm.audio_lock); 1042 mutex_destroy(&adev->dm.dc_lock); 1043 1044 return; 1045 } 1046 1047 static int load_dmcu_fw(struct amdgpu_device *adev) 1048 { 1049 const char *fw_name_dmcu = NULL; 1050 int r; 1051 const struct dmcu_firmware_header_v1_0 *hdr; 1052 1053 switch(adev->asic_type) { 1054 case CHIP_BONAIRE: 1055 case CHIP_HAWAII: 1056 case CHIP_KAVERI: 1057 case CHIP_KABINI: 1058 case CHIP_MULLINS: 1059 case CHIP_TONGA: 1060 case CHIP_FIJI: 1061 case CHIP_CARRIZO: 1062 case CHIP_STONEY: 1063 case CHIP_POLARIS11: 1064 case CHIP_POLARIS10: 1065 case CHIP_POLARIS12: 1066 case CHIP_VEGAM: 1067 case CHIP_VEGA10: 1068 case CHIP_VEGA12: 1069 case CHIP_VEGA20: 1070 case CHIP_NAVI10: 1071 case CHIP_NAVI14: 1072 case CHIP_RENOIR: 1073 return 0; 1074 case CHIP_NAVI12: 1075 fw_name_dmcu = FIRMWARE_NAVI12_DMCU; 1076 break; 1077 case CHIP_RAVEN: 1078 if (ASICREV_IS_PICASSO(adev->external_rev_id)) 1079 fw_name_dmcu = FIRMWARE_RAVEN_DMCU; 1080 else if (ASICREV_IS_RAVEN2(adev->external_rev_id)) 1081 fw_name_dmcu = FIRMWARE_RAVEN_DMCU; 1082 else 1083 return 0; 1084 break; 1085 default: 1086 DRM_ERROR("Unsupported ASIC type: 0x%X\n", adev->asic_type); 1087 return -EINVAL; 1088 } 1089 1090 if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP) { 1091 DRM_DEBUG_KMS("dm: DMCU firmware not supported on direct or SMU loading\n"); 1092 return 0; 1093 } 1094 1095 r = request_firmware_direct(&adev->dm.fw_dmcu, fw_name_dmcu, adev->dev); 1096 if (r == -ENOENT) { 1097 /* DMCU firmware is not necessary, so don't raise a fuss if it's missing */ 1098 DRM_DEBUG_KMS("dm: DMCU firmware not found\n"); 1099 adev->dm.fw_dmcu = NULL; 1100 return 0; 1101 } 1102 if (r) { 1103 dev_err(adev->dev, "amdgpu_dm: Can't load firmware \"%s\"\n", 1104 fw_name_dmcu); 1105 return r; 1106 } 1107 1108 r = amdgpu_ucode_validate(adev->dm.fw_dmcu); 1109 if (r) { 1110 dev_err(adev->dev, "amdgpu_dm: Can't validate firmware \"%s\"\n", 1111 fw_name_dmcu); 1112 release_firmware(adev->dm.fw_dmcu); 1113 adev->dm.fw_dmcu = NULL; 1114 return r; 1115 } 1116 1117 hdr = (const struct dmcu_firmware_header_v1_0 *)adev->dm.fw_dmcu->data; 1118 adev->firmware.ucode[AMDGPU_UCODE_ID_DMCU_ERAM].ucode_id = AMDGPU_UCODE_ID_DMCU_ERAM; 1119 adev->firmware.ucode[AMDGPU_UCODE_ID_DMCU_ERAM].fw = adev->dm.fw_dmcu; 1120 adev->firmware.fw_size += 1121 ALIGN(le32_to_cpu(hdr->header.ucode_size_bytes) - le32_to_cpu(hdr->intv_size_bytes), PAGE_SIZE); 1122 1123 adev->firmware.ucode[AMDGPU_UCODE_ID_DMCU_INTV].ucode_id = AMDGPU_UCODE_ID_DMCU_INTV; 1124 adev->firmware.ucode[AMDGPU_UCODE_ID_DMCU_INTV].fw = adev->dm.fw_dmcu; 1125 adev->firmware.fw_size += 1126 ALIGN(le32_to_cpu(hdr->intv_size_bytes), PAGE_SIZE); 1127 1128 adev->dm.dmcu_fw_version = le32_to_cpu(hdr->header.ucode_version); 1129 1130 DRM_DEBUG_KMS("PSP loading DMCU firmware\n"); 1131 1132 return 0; 1133 } 1134 1135 static uint32_t amdgpu_dm_dmub_reg_read(void *ctx, uint32_t address) 1136 { 1137 struct amdgpu_device *adev = ctx; 1138 1139 return dm_read_reg(adev->dm.dc->ctx, address); 1140 } 1141 1142 static void amdgpu_dm_dmub_reg_write(void *ctx, uint32_t address, 1143 uint32_t value) 1144 { 1145 struct amdgpu_device *adev = ctx; 1146 1147 return dm_write_reg(adev->dm.dc->ctx, address, value); 1148 } 1149 1150 static int dm_dmub_sw_init(struct amdgpu_device *adev) 1151 { 1152 struct dmub_srv_create_params create_params; 1153 struct dmub_srv_region_params region_params; 1154 struct dmub_srv_region_info region_info; 1155 struct dmub_srv_fb_params fb_params; 1156 struct dmub_srv_fb_info *fb_info; 1157 struct dmub_srv *dmub_srv; 1158 const struct dmcub_firmware_header_v1_0 *hdr; 1159 const char *fw_name_dmub; 1160 enum dmub_asic dmub_asic; 1161 enum dmub_status status; 1162 int r; 1163 1164 switch (adev->asic_type) { 1165 case CHIP_RENOIR: 1166 dmub_asic = DMUB_ASIC_DCN21; 1167 fw_name_dmub = FIRMWARE_RENOIR_DMUB; 1168 break; 1169 1170 default: 1171 /* ASIC doesn't support DMUB. */ 1172 return 0; 1173 } 1174 1175 r = request_firmware_direct(&adev->dm.dmub_fw, fw_name_dmub, adev->dev); 1176 if (r) { 1177 DRM_ERROR("DMUB firmware loading failed: %d\n", r); 1178 return 0; 1179 } 1180 1181 r = amdgpu_ucode_validate(adev->dm.dmub_fw); 1182 if (r) { 1183 DRM_ERROR("Couldn't validate DMUB firmware: %d\n", r); 1184 return 0; 1185 } 1186 1187 hdr = (const struct dmcub_firmware_header_v1_0 *)adev->dm.dmub_fw->data; 1188 1189 if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) { 1190 adev->firmware.ucode[AMDGPU_UCODE_ID_DMCUB].ucode_id = 1191 AMDGPU_UCODE_ID_DMCUB; 1192 adev->firmware.ucode[AMDGPU_UCODE_ID_DMCUB].fw = 1193 adev->dm.dmub_fw; 1194 adev->firmware.fw_size += 1195 ALIGN(le32_to_cpu(hdr->inst_const_bytes), PAGE_SIZE); 1196 1197 DRM_INFO("Loading DMUB firmware via PSP: version=0x%08X\n", 1198 adev->dm.dmcub_fw_version); 1199 } 1200 1201 adev->dm.dmcub_fw_version = le32_to_cpu(hdr->header.ucode_version); 1202 1203 adev->dm.dmub_srv = kzalloc(sizeof(*adev->dm.dmub_srv), GFP_KERNEL); 1204 dmub_srv = adev->dm.dmub_srv; 1205 1206 if (!dmub_srv) { 1207 DRM_ERROR("Failed to allocate DMUB service!\n"); 1208 return -ENOMEM; 1209 } 1210 1211 memset(&create_params, 0, sizeof(create_params)); 1212 create_params.user_ctx = adev; 1213 create_params.funcs.reg_read = amdgpu_dm_dmub_reg_read; 1214 create_params.funcs.reg_write = amdgpu_dm_dmub_reg_write; 1215 create_params.asic = dmub_asic; 1216 1217 /* Create the DMUB service. */ 1218 status = dmub_srv_create(dmub_srv, &create_params); 1219 if (status != DMUB_STATUS_OK) { 1220 DRM_ERROR("Error creating DMUB service: %d\n", status); 1221 return -EINVAL; 1222 } 1223 1224 /* Calculate the size of all the regions for the DMUB service. */ 1225 memset(®ion_params, 0, sizeof(region_params)); 1226 1227 region_params.inst_const_size = le32_to_cpu(hdr->inst_const_bytes) - 1228 PSP_HEADER_BYTES - PSP_FOOTER_BYTES; 1229 region_params.bss_data_size = le32_to_cpu(hdr->bss_data_bytes); 1230 region_params.vbios_size = adev->bios_size; 1231 region_params.fw_bss_data = 1232 adev->dm.dmub_fw->data + 1233 le32_to_cpu(hdr->header.ucode_array_offset_bytes) + 1234 le32_to_cpu(hdr->inst_const_bytes); 1235 region_params.fw_inst_const = 1236 adev->dm.dmub_fw->data + 1237 le32_to_cpu(hdr->header.ucode_array_offset_bytes) + 1238 PSP_HEADER_BYTES; 1239 1240 status = dmub_srv_calc_region_info(dmub_srv, ®ion_params, 1241 ®ion_info); 1242 1243 if (status != DMUB_STATUS_OK) { 1244 DRM_ERROR("Error calculating DMUB region info: %d\n", status); 1245 return -EINVAL; 1246 } 1247 1248 /* 1249 * Allocate a framebuffer based on the total size of all the regions. 1250 * TODO: Move this into GART. 1251 */ 1252 r = amdgpu_bo_create_kernel(adev, region_info.fb_size, PAGE_SIZE, 1253 AMDGPU_GEM_DOMAIN_VRAM, &adev->dm.dmub_bo, 1254 &adev->dm.dmub_bo_gpu_addr, 1255 &adev->dm.dmub_bo_cpu_addr); 1256 if (r) 1257 return r; 1258 1259 /* Rebase the regions on the framebuffer address. */ 1260 memset(&fb_params, 0, sizeof(fb_params)); 1261 fb_params.cpu_addr = adev->dm.dmub_bo_cpu_addr; 1262 fb_params.gpu_addr = adev->dm.dmub_bo_gpu_addr; 1263 fb_params.region_info = ®ion_info; 1264 1265 adev->dm.dmub_fb_info = 1266 kzalloc(sizeof(*adev->dm.dmub_fb_info), GFP_KERNEL); 1267 fb_info = adev->dm.dmub_fb_info; 1268 1269 if (!fb_info) { 1270 DRM_ERROR( 1271 "Failed to allocate framebuffer info for DMUB service!\n"); 1272 return -ENOMEM; 1273 } 1274 1275 status = dmub_srv_calc_fb_info(dmub_srv, &fb_params, fb_info); 1276 if (status != DMUB_STATUS_OK) { 1277 DRM_ERROR("Error calculating DMUB FB info: %d\n", status); 1278 return -EINVAL; 1279 } 1280 1281 return 0; 1282 } 1283 1284 static int dm_sw_init(void *handle) 1285 { 1286 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1287 int r; 1288 1289 r = dm_dmub_sw_init(adev); 1290 if (r) 1291 return r; 1292 1293 return load_dmcu_fw(adev); 1294 } 1295 1296 static int dm_sw_fini(void *handle) 1297 { 1298 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1299 1300 kfree(adev->dm.dmub_fb_info); 1301 adev->dm.dmub_fb_info = NULL; 1302 1303 if (adev->dm.dmub_srv) { 1304 dmub_srv_destroy(adev->dm.dmub_srv); 1305 adev->dm.dmub_srv = NULL; 1306 } 1307 1308 if (adev->dm.dmub_fw) { 1309 release_firmware(adev->dm.dmub_fw); 1310 adev->dm.dmub_fw = NULL; 1311 } 1312 1313 if(adev->dm.fw_dmcu) { 1314 release_firmware(adev->dm.fw_dmcu); 1315 adev->dm.fw_dmcu = NULL; 1316 } 1317 1318 return 0; 1319 } 1320 1321 static int detect_mst_link_for_all_connectors(struct drm_device *dev) 1322 { 1323 struct amdgpu_dm_connector *aconnector; 1324 struct drm_connector *connector; 1325 struct drm_connector_list_iter iter; 1326 int ret = 0; 1327 1328 drm_connector_list_iter_begin(dev, &iter); 1329 drm_for_each_connector_iter(connector, &iter) { 1330 aconnector = to_amdgpu_dm_connector(connector); 1331 if (aconnector->dc_link->type == dc_connection_mst_branch && 1332 aconnector->mst_mgr.aux) { 1333 DRM_DEBUG_DRIVER("DM_MST: starting TM on aconnector: %p [id: %d]\n", 1334 aconnector, 1335 aconnector->base.base.id); 1336 1337 ret = drm_dp_mst_topology_mgr_set_mst(&aconnector->mst_mgr, true); 1338 if (ret < 0) { 1339 DRM_ERROR("DM_MST: Failed to start MST\n"); 1340 aconnector->dc_link->type = 1341 dc_connection_single; 1342 break; 1343 } 1344 } 1345 } 1346 drm_connector_list_iter_end(&iter); 1347 1348 return ret; 1349 } 1350 1351 static int dm_late_init(void *handle) 1352 { 1353 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1354 1355 struct dmcu_iram_parameters params; 1356 unsigned int linear_lut[16]; 1357 int i; 1358 struct dmcu *dmcu = NULL; 1359 bool ret; 1360 1361 if (!adev->dm.fw_dmcu) 1362 return detect_mst_link_for_all_connectors(adev->ddev); 1363 1364 dmcu = adev->dm.dc->res_pool->dmcu; 1365 1366 for (i = 0; i < 16; i++) 1367 linear_lut[i] = 0xFFFF * i / 15; 1368 1369 params.set = 0; 1370 params.backlight_ramping_start = 0xCCCC; 1371 params.backlight_ramping_reduction = 0xCCCCCCCC; 1372 params.backlight_lut_array_size = 16; 1373 params.backlight_lut_array = linear_lut; 1374 1375 /* Min backlight level after ABM reduction, Don't allow below 1% 1376 * 0xFFFF x 0.01 = 0x28F 1377 */ 1378 params.min_abm_backlight = 0x28F; 1379 1380 ret = dmcu_load_iram(dmcu, params); 1381 1382 if (!ret) 1383 return -EINVAL; 1384 1385 return detect_mst_link_for_all_connectors(adev->ddev); 1386 } 1387 1388 static void s3_handle_mst(struct drm_device *dev, bool suspend) 1389 { 1390 struct amdgpu_dm_connector *aconnector; 1391 struct drm_connector *connector; 1392 struct drm_connector_list_iter iter; 1393 struct drm_dp_mst_topology_mgr *mgr; 1394 int ret; 1395 bool need_hotplug = false; 1396 1397 drm_connector_list_iter_begin(dev, &iter); 1398 drm_for_each_connector_iter(connector, &iter) { 1399 aconnector = to_amdgpu_dm_connector(connector); 1400 if (aconnector->dc_link->type != dc_connection_mst_branch || 1401 aconnector->mst_port) 1402 continue; 1403 1404 mgr = &aconnector->mst_mgr; 1405 1406 if (suspend) { 1407 drm_dp_mst_topology_mgr_suspend(mgr); 1408 } else { 1409 ret = drm_dp_mst_topology_mgr_resume(mgr, true); 1410 if (ret < 0) { 1411 drm_dp_mst_topology_mgr_set_mst(mgr, false); 1412 need_hotplug = true; 1413 } 1414 } 1415 } 1416 drm_connector_list_iter_end(&iter); 1417 1418 if (need_hotplug) 1419 drm_kms_helper_hotplug_event(dev); 1420 } 1421 1422 static int amdgpu_dm_smu_write_watermarks_table(struct amdgpu_device *adev) 1423 { 1424 struct smu_context *smu = &adev->smu; 1425 int ret = 0; 1426 1427 if (!is_support_sw_smu(adev)) 1428 return 0; 1429 1430 /* This interface is for dGPU Navi1x.Linux dc-pplib interface depends 1431 * on window driver dc implementation. 1432 * For Navi1x, clock settings of dcn watermarks are fixed. the settings 1433 * should be passed to smu during boot up and resume from s3. 1434 * boot up: dc calculate dcn watermark clock settings within dc_create, 1435 * dcn20_resource_construct 1436 * then call pplib functions below to pass the settings to smu: 1437 * smu_set_watermarks_for_clock_ranges 1438 * smu_set_watermarks_table 1439 * navi10_set_watermarks_table 1440 * smu_write_watermarks_table 1441 * 1442 * For Renoir, clock settings of dcn watermark are also fixed values. 1443 * dc has implemented different flow for window driver: 1444 * dc_hardware_init / dc_set_power_state 1445 * dcn10_init_hw 1446 * notify_wm_ranges 1447 * set_wm_ranges 1448 * -- Linux 1449 * smu_set_watermarks_for_clock_ranges 1450 * renoir_set_watermarks_table 1451 * smu_write_watermarks_table 1452 * 1453 * For Linux, 1454 * dc_hardware_init -> amdgpu_dm_init 1455 * dc_set_power_state --> dm_resume 1456 * 1457 * therefore, this function apply to navi10/12/14 but not Renoir 1458 * * 1459 */ 1460 switch(adev->asic_type) { 1461 case CHIP_NAVI10: 1462 case CHIP_NAVI14: 1463 case CHIP_NAVI12: 1464 break; 1465 default: 1466 return 0; 1467 } 1468 1469 mutex_lock(&smu->mutex); 1470 1471 /* pass data to smu controller */ 1472 if ((smu->watermarks_bitmap & WATERMARKS_EXIST) && 1473 !(smu->watermarks_bitmap & WATERMARKS_LOADED)) { 1474 ret = smu_write_watermarks_table(smu); 1475 1476 if (ret) { 1477 mutex_unlock(&smu->mutex); 1478 DRM_ERROR("Failed to update WMTABLE!\n"); 1479 return ret; 1480 } 1481 smu->watermarks_bitmap |= WATERMARKS_LOADED; 1482 } 1483 1484 mutex_unlock(&smu->mutex); 1485 1486 return 0; 1487 } 1488 1489 /** 1490 * dm_hw_init() - Initialize DC device 1491 * @handle: The base driver device containing the amdgpu_dm device. 1492 * 1493 * Initialize the &struct amdgpu_display_manager device. This involves calling 1494 * the initializers of each DM component, then populating the struct with them. 1495 * 1496 * Although the function implies hardware initialization, both hardware and 1497 * software are initialized here. Splitting them out to their relevant init 1498 * hooks is a future TODO item. 1499 * 1500 * Some notable things that are initialized here: 1501 * 1502 * - Display Core, both software and hardware 1503 * - DC modules that we need (freesync and color management) 1504 * - DRM software states 1505 * - Interrupt sources and handlers 1506 * - Vblank support 1507 * - Debug FS entries, if enabled 1508 */ 1509 static int dm_hw_init(void *handle) 1510 { 1511 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1512 /* Create DAL display manager */ 1513 amdgpu_dm_init(adev); 1514 amdgpu_dm_hpd_init(adev); 1515 1516 return 0; 1517 } 1518 1519 /** 1520 * dm_hw_fini() - Teardown DC device 1521 * @handle: The base driver device containing the amdgpu_dm device. 1522 * 1523 * Teardown components within &struct amdgpu_display_manager that require 1524 * cleanup. This involves cleaning up the DRM device, DC, and any modules that 1525 * were loaded. Also flush IRQ workqueues and disable them. 1526 */ 1527 static int dm_hw_fini(void *handle) 1528 { 1529 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1530 1531 amdgpu_dm_hpd_fini(adev); 1532 1533 amdgpu_dm_irq_fini(adev); 1534 amdgpu_dm_fini(adev); 1535 return 0; 1536 } 1537 1538 1539 static int dm_enable_vblank(struct drm_crtc *crtc); 1540 static void dm_disable_vblank(struct drm_crtc *crtc); 1541 1542 static void dm_gpureset_toggle_interrupts(struct amdgpu_device *adev, 1543 struct dc_state *state, bool enable) 1544 { 1545 enum dc_irq_source irq_source; 1546 struct amdgpu_crtc *acrtc; 1547 int rc = -EBUSY; 1548 int i = 0; 1549 1550 for (i = 0; i < state->stream_count; i++) { 1551 acrtc = get_crtc_by_otg_inst( 1552 adev, state->stream_status[i].primary_otg_inst); 1553 1554 if (acrtc && state->stream_status[i].plane_count != 0) { 1555 irq_source = IRQ_TYPE_PFLIP + acrtc->otg_inst; 1556 rc = dc_interrupt_set(adev->dm.dc, irq_source, enable) ? 0 : -EBUSY; 1557 DRM_DEBUG("crtc %d - vupdate irq %sabling: r=%d\n", 1558 acrtc->crtc_id, enable ? "en" : "dis", rc); 1559 if (rc) 1560 DRM_WARN("Failed to %s pflip interrupts\n", 1561 enable ? "enable" : "disable"); 1562 1563 if (enable) { 1564 rc = dm_enable_vblank(&acrtc->base); 1565 if (rc) 1566 DRM_WARN("Failed to enable vblank interrupts\n"); 1567 } else { 1568 dm_disable_vblank(&acrtc->base); 1569 } 1570 1571 } 1572 } 1573 1574 } 1575 1576 enum dc_status amdgpu_dm_commit_zero_streams(struct dc *dc) 1577 { 1578 struct dc_state *context = NULL; 1579 enum dc_status res = DC_ERROR_UNEXPECTED; 1580 int i; 1581 struct dc_stream_state *del_streams[MAX_PIPES]; 1582 int del_streams_count = 0; 1583 1584 memset(del_streams, 0, sizeof(del_streams)); 1585 1586 context = dc_create_state(dc); 1587 if (context == NULL) 1588 goto context_alloc_fail; 1589 1590 dc_resource_state_copy_construct_current(dc, context); 1591 1592 /* First remove from context all streams */ 1593 for (i = 0; i < context->stream_count; i++) { 1594 struct dc_stream_state *stream = context->streams[i]; 1595 1596 del_streams[del_streams_count++] = stream; 1597 } 1598 1599 /* Remove all planes for removed streams and then remove the streams */ 1600 for (i = 0; i < del_streams_count; i++) { 1601 if (!dc_rem_all_planes_for_stream(dc, del_streams[i], context)) { 1602 res = DC_FAIL_DETACH_SURFACES; 1603 goto fail; 1604 } 1605 1606 res = dc_remove_stream_from_ctx(dc, context, del_streams[i]); 1607 if (res != DC_OK) 1608 goto fail; 1609 } 1610 1611 1612 res = dc_validate_global_state(dc, context, false); 1613 1614 if (res != DC_OK) { 1615 DRM_ERROR("%s:resource validation failed, dc_status:%d\n", __func__, res); 1616 goto fail; 1617 } 1618 1619 res = dc_commit_state(dc, context); 1620 1621 fail: 1622 dc_release_state(context); 1623 1624 context_alloc_fail: 1625 return res; 1626 } 1627 1628 static int dm_suspend(void *handle) 1629 { 1630 struct amdgpu_device *adev = handle; 1631 struct amdgpu_display_manager *dm = &adev->dm; 1632 int ret = 0; 1633 1634 if (adev->in_gpu_reset) { 1635 mutex_lock(&dm->dc_lock); 1636 dm->cached_dc_state = dc_copy_state(dm->dc->current_state); 1637 1638 dm_gpureset_toggle_interrupts(adev, dm->cached_dc_state, false); 1639 1640 amdgpu_dm_commit_zero_streams(dm->dc); 1641 1642 amdgpu_dm_irq_suspend(adev); 1643 1644 return ret; 1645 } 1646 1647 WARN_ON(adev->dm.cached_state); 1648 adev->dm.cached_state = drm_atomic_helper_suspend(adev->ddev); 1649 1650 s3_handle_mst(adev->ddev, true); 1651 1652 amdgpu_dm_irq_suspend(adev); 1653 1654 1655 dc_set_power_state(dm->dc, DC_ACPI_CM_POWER_STATE_D3); 1656 1657 return 0; 1658 } 1659 1660 static struct amdgpu_dm_connector * 1661 amdgpu_dm_find_first_crtc_matching_connector(struct drm_atomic_state *state, 1662 struct drm_crtc *crtc) 1663 { 1664 uint32_t i; 1665 struct drm_connector_state *new_con_state; 1666 struct drm_connector *connector; 1667 struct drm_crtc *crtc_from_state; 1668 1669 for_each_new_connector_in_state(state, connector, new_con_state, i) { 1670 crtc_from_state = new_con_state->crtc; 1671 1672 if (crtc_from_state == crtc) 1673 return to_amdgpu_dm_connector(connector); 1674 } 1675 1676 return NULL; 1677 } 1678 1679 static void emulated_link_detect(struct dc_link *link) 1680 { 1681 struct dc_sink_init_data sink_init_data = { 0 }; 1682 struct display_sink_capability sink_caps = { 0 }; 1683 enum dc_edid_status edid_status; 1684 struct dc_context *dc_ctx = link->ctx; 1685 struct dc_sink *sink = NULL; 1686 struct dc_sink *prev_sink = NULL; 1687 1688 link->type = dc_connection_none; 1689 prev_sink = link->local_sink; 1690 1691 if (prev_sink != NULL) 1692 dc_sink_retain(prev_sink); 1693 1694 switch (link->connector_signal) { 1695 case SIGNAL_TYPE_HDMI_TYPE_A: { 1696 sink_caps.transaction_type = DDC_TRANSACTION_TYPE_I2C; 1697 sink_caps.signal = SIGNAL_TYPE_HDMI_TYPE_A; 1698 break; 1699 } 1700 1701 case SIGNAL_TYPE_DVI_SINGLE_LINK: { 1702 sink_caps.transaction_type = DDC_TRANSACTION_TYPE_I2C; 1703 sink_caps.signal = SIGNAL_TYPE_DVI_SINGLE_LINK; 1704 break; 1705 } 1706 1707 case SIGNAL_TYPE_DVI_DUAL_LINK: { 1708 sink_caps.transaction_type = DDC_TRANSACTION_TYPE_I2C; 1709 sink_caps.signal = SIGNAL_TYPE_DVI_DUAL_LINK; 1710 break; 1711 } 1712 1713 case SIGNAL_TYPE_LVDS: { 1714 sink_caps.transaction_type = DDC_TRANSACTION_TYPE_I2C; 1715 sink_caps.signal = SIGNAL_TYPE_LVDS; 1716 break; 1717 } 1718 1719 case SIGNAL_TYPE_EDP: { 1720 sink_caps.transaction_type = 1721 DDC_TRANSACTION_TYPE_I2C_OVER_AUX; 1722 sink_caps.signal = SIGNAL_TYPE_EDP; 1723 break; 1724 } 1725 1726 case SIGNAL_TYPE_DISPLAY_PORT: { 1727 sink_caps.transaction_type = 1728 DDC_TRANSACTION_TYPE_I2C_OVER_AUX; 1729 sink_caps.signal = SIGNAL_TYPE_VIRTUAL; 1730 break; 1731 } 1732 1733 default: 1734 DC_ERROR("Invalid connector type! signal:%d\n", 1735 link->connector_signal); 1736 return; 1737 } 1738 1739 sink_init_data.link = link; 1740 sink_init_data.sink_signal = sink_caps.signal; 1741 1742 sink = dc_sink_create(&sink_init_data); 1743 if (!sink) { 1744 DC_ERROR("Failed to create sink!\n"); 1745 return; 1746 } 1747 1748 /* dc_sink_create returns a new reference */ 1749 link->local_sink = sink; 1750 1751 edid_status = dm_helpers_read_local_edid( 1752 link->ctx, 1753 link, 1754 sink); 1755 1756 if (edid_status != EDID_OK) 1757 DC_ERROR("Failed to read EDID"); 1758 1759 } 1760 1761 static void dm_gpureset_commit_state(struct dc_state *dc_state, 1762 struct amdgpu_display_manager *dm) 1763 { 1764 struct { 1765 struct dc_surface_update surface_updates[MAX_SURFACES]; 1766 struct dc_plane_info plane_infos[MAX_SURFACES]; 1767 struct dc_scaling_info scaling_infos[MAX_SURFACES]; 1768 struct dc_flip_addrs flip_addrs[MAX_SURFACES]; 1769 struct dc_stream_update stream_update; 1770 } * bundle; 1771 int k, m; 1772 1773 bundle = kzalloc(sizeof(*bundle), GFP_KERNEL); 1774 1775 if (!bundle) { 1776 dm_error("Failed to allocate update bundle\n"); 1777 goto cleanup; 1778 } 1779 1780 for (k = 0; k < dc_state->stream_count; k++) { 1781 bundle->stream_update.stream = dc_state->streams[k]; 1782 1783 for (m = 0; m < dc_state->stream_status->plane_count; m++) { 1784 bundle->surface_updates[m].surface = 1785 dc_state->stream_status->plane_states[m]; 1786 bundle->surface_updates[m].surface->force_full_update = 1787 true; 1788 } 1789 dc_commit_updates_for_stream( 1790 dm->dc, bundle->surface_updates, 1791 dc_state->stream_status->plane_count, 1792 dc_state->streams[k], &bundle->stream_update, dc_state); 1793 } 1794 1795 cleanup: 1796 kfree(bundle); 1797 1798 return; 1799 } 1800 1801 static int dm_resume(void *handle) 1802 { 1803 struct amdgpu_device *adev = handle; 1804 struct drm_device *ddev = adev->ddev; 1805 struct amdgpu_display_manager *dm = &adev->dm; 1806 struct amdgpu_dm_connector *aconnector; 1807 struct drm_connector *connector; 1808 struct drm_connector_list_iter iter; 1809 struct drm_crtc *crtc; 1810 struct drm_crtc_state *new_crtc_state; 1811 struct dm_crtc_state *dm_new_crtc_state; 1812 struct drm_plane *plane; 1813 struct drm_plane_state *new_plane_state; 1814 struct dm_plane_state *dm_new_plane_state; 1815 struct dm_atomic_state *dm_state = to_dm_atomic_state(dm->atomic_obj.state); 1816 enum dc_connection_type new_connection_type = dc_connection_none; 1817 struct dc_state *dc_state; 1818 int i, r, j; 1819 1820 if (adev->in_gpu_reset) { 1821 dc_state = dm->cached_dc_state; 1822 1823 r = dm_dmub_hw_init(adev); 1824 if (r) 1825 DRM_ERROR("DMUB interface failed to initialize: status=%d\n", r); 1826 1827 dc_set_power_state(dm->dc, DC_ACPI_CM_POWER_STATE_D0); 1828 dc_resume(dm->dc); 1829 1830 amdgpu_dm_irq_resume_early(adev); 1831 1832 for (i = 0; i < dc_state->stream_count; i++) { 1833 dc_state->streams[i]->mode_changed = true; 1834 for (j = 0; j < dc_state->stream_status->plane_count; j++) { 1835 dc_state->stream_status->plane_states[j]->update_flags.raw 1836 = 0xffffffff; 1837 } 1838 } 1839 1840 WARN_ON(!dc_commit_state(dm->dc, dc_state)); 1841 1842 dm_gpureset_commit_state(dm->cached_dc_state, dm); 1843 1844 dm_gpureset_toggle_interrupts(adev, dm->cached_dc_state, true); 1845 1846 dc_release_state(dm->cached_dc_state); 1847 dm->cached_dc_state = NULL; 1848 1849 amdgpu_dm_irq_resume_late(adev); 1850 1851 mutex_unlock(&dm->dc_lock); 1852 1853 return 0; 1854 } 1855 /* Recreate dc_state - DC invalidates it when setting power state to S3. */ 1856 dc_release_state(dm_state->context); 1857 dm_state->context = dc_create_state(dm->dc); 1858 /* TODO: Remove dc_state->dccg, use dc->dccg directly. */ 1859 dc_resource_state_construct(dm->dc, dm_state->context); 1860 1861 /* Before powering on DC we need to re-initialize DMUB. */ 1862 r = dm_dmub_hw_init(adev); 1863 if (r) 1864 DRM_ERROR("DMUB interface failed to initialize: status=%d\n", r); 1865 1866 /* power on hardware */ 1867 dc_set_power_state(dm->dc, DC_ACPI_CM_POWER_STATE_D0); 1868 1869 /* program HPD filter */ 1870 dc_resume(dm->dc); 1871 1872 /* 1873 * early enable HPD Rx IRQ, should be done before set mode as short 1874 * pulse interrupts are used for MST 1875 */ 1876 amdgpu_dm_irq_resume_early(adev); 1877 1878 /* On resume we need to rewrite the MSTM control bits to enable MST*/ 1879 s3_handle_mst(ddev, false); 1880 1881 /* Do detection*/ 1882 drm_connector_list_iter_begin(ddev, &iter); 1883 drm_for_each_connector_iter(connector, &iter) { 1884 aconnector = to_amdgpu_dm_connector(connector); 1885 1886 /* 1887 * this is the case when traversing through already created 1888 * MST connectors, should be skipped 1889 */ 1890 if (aconnector->mst_port) 1891 continue; 1892 1893 mutex_lock(&aconnector->hpd_lock); 1894 if (!dc_link_detect_sink(aconnector->dc_link, &new_connection_type)) 1895 DRM_ERROR("KMS: Failed to detect connector\n"); 1896 1897 if (aconnector->base.force && new_connection_type == dc_connection_none) 1898 emulated_link_detect(aconnector->dc_link); 1899 else 1900 dc_link_detect(aconnector->dc_link, DETECT_REASON_HPD); 1901 1902 if (aconnector->fake_enable && aconnector->dc_link->local_sink) 1903 aconnector->fake_enable = false; 1904 1905 if (aconnector->dc_sink) 1906 dc_sink_release(aconnector->dc_sink); 1907 aconnector->dc_sink = NULL; 1908 amdgpu_dm_update_connector_after_detect(aconnector); 1909 mutex_unlock(&aconnector->hpd_lock); 1910 } 1911 drm_connector_list_iter_end(&iter); 1912 1913 /* Force mode set in atomic commit */ 1914 for_each_new_crtc_in_state(dm->cached_state, crtc, new_crtc_state, i) 1915 new_crtc_state->active_changed = true; 1916 1917 /* 1918 * atomic_check is expected to create the dc states. We need to release 1919 * them here, since they were duplicated as part of the suspend 1920 * procedure. 1921 */ 1922 for_each_new_crtc_in_state(dm->cached_state, crtc, new_crtc_state, i) { 1923 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); 1924 if (dm_new_crtc_state->stream) { 1925 WARN_ON(kref_read(&dm_new_crtc_state->stream->refcount) > 1); 1926 dc_stream_release(dm_new_crtc_state->stream); 1927 dm_new_crtc_state->stream = NULL; 1928 } 1929 } 1930 1931 for_each_new_plane_in_state(dm->cached_state, plane, new_plane_state, i) { 1932 dm_new_plane_state = to_dm_plane_state(new_plane_state); 1933 if (dm_new_plane_state->dc_state) { 1934 WARN_ON(kref_read(&dm_new_plane_state->dc_state->refcount) > 1); 1935 dc_plane_state_release(dm_new_plane_state->dc_state); 1936 dm_new_plane_state->dc_state = NULL; 1937 } 1938 } 1939 1940 drm_atomic_helper_resume(ddev, dm->cached_state); 1941 1942 dm->cached_state = NULL; 1943 1944 amdgpu_dm_irq_resume_late(adev); 1945 1946 amdgpu_dm_smu_write_watermarks_table(adev); 1947 1948 return 0; 1949 } 1950 1951 /** 1952 * DOC: DM Lifecycle 1953 * 1954 * DM (and consequently DC) is registered in the amdgpu base driver as a IP 1955 * block. When CONFIG_DRM_AMD_DC is enabled, the DM device IP block is added to 1956 * the base driver's device list to be initialized and torn down accordingly. 1957 * 1958 * The functions to do so are provided as hooks in &struct amd_ip_funcs. 1959 */ 1960 1961 static const struct amd_ip_funcs amdgpu_dm_funcs = { 1962 .name = "dm", 1963 .early_init = dm_early_init, 1964 .late_init = dm_late_init, 1965 .sw_init = dm_sw_init, 1966 .sw_fini = dm_sw_fini, 1967 .hw_init = dm_hw_init, 1968 .hw_fini = dm_hw_fini, 1969 .suspend = dm_suspend, 1970 .resume = dm_resume, 1971 .is_idle = dm_is_idle, 1972 .wait_for_idle = dm_wait_for_idle, 1973 .check_soft_reset = dm_check_soft_reset, 1974 .soft_reset = dm_soft_reset, 1975 .set_clockgating_state = dm_set_clockgating_state, 1976 .set_powergating_state = dm_set_powergating_state, 1977 }; 1978 1979 const struct amdgpu_ip_block_version dm_ip_block = 1980 { 1981 .type = AMD_IP_BLOCK_TYPE_DCE, 1982 .major = 1, 1983 .minor = 0, 1984 .rev = 0, 1985 .funcs = &amdgpu_dm_funcs, 1986 }; 1987 1988 1989 /** 1990 * DOC: atomic 1991 * 1992 * *WIP* 1993 */ 1994 1995 static const struct drm_mode_config_funcs amdgpu_dm_mode_funcs = { 1996 .fb_create = amdgpu_display_user_framebuffer_create, 1997 .output_poll_changed = drm_fb_helper_output_poll_changed, 1998 .atomic_check = amdgpu_dm_atomic_check, 1999 .atomic_commit = amdgpu_dm_atomic_commit, 2000 }; 2001 2002 static struct drm_mode_config_helper_funcs amdgpu_dm_mode_config_helperfuncs = { 2003 .atomic_commit_tail = amdgpu_dm_atomic_commit_tail 2004 }; 2005 2006 static void update_connector_ext_caps(struct amdgpu_dm_connector *aconnector) 2007 { 2008 u32 max_cll, min_cll, max, min, q, r; 2009 struct amdgpu_dm_backlight_caps *caps; 2010 struct amdgpu_display_manager *dm; 2011 struct drm_connector *conn_base; 2012 struct amdgpu_device *adev; 2013 static const u8 pre_computed_values[] = { 2014 50, 51, 52, 53, 55, 56, 57, 58, 59, 61, 62, 63, 65, 66, 68, 69, 2015 71, 72, 74, 75, 77, 79, 81, 82, 84, 86, 88, 90, 92, 94, 96, 98}; 2016 2017 if (!aconnector || !aconnector->dc_link) 2018 return; 2019 2020 conn_base = &aconnector->base; 2021 adev = conn_base->dev->dev_private; 2022 dm = &adev->dm; 2023 caps = &dm->backlight_caps; 2024 caps->ext_caps = &aconnector->dc_link->dpcd_sink_ext_caps; 2025 caps->aux_support = false; 2026 max_cll = conn_base->hdr_sink_metadata.hdmi_type1.max_cll; 2027 min_cll = conn_base->hdr_sink_metadata.hdmi_type1.min_cll; 2028 2029 if (caps->ext_caps->bits.oled == 1 || 2030 caps->ext_caps->bits.sdr_aux_backlight_control == 1 || 2031 caps->ext_caps->bits.hdr_aux_backlight_control == 1) 2032 caps->aux_support = true; 2033 2034 /* From the specification (CTA-861-G), for calculating the maximum 2035 * luminance we need to use: 2036 * Luminance = 50*2**(CV/32) 2037 * Where CV is a one-byte value. 2038 * For calculating this expression we may need float point precision; 2039 * to avoid this complexity level, we take advantage that CV is divided 2040 * by a constant. From the Euclids division algorithm, we know that CV 2041 * can be written as: CV = 32*q + r. Next, we replace CV in the 2042 * Luminance expression and get 50*(2**q)*(2**(r/32)), hence we just 2043 * need to pre-compute the value of r/32. For pre-computing the values 2044 * We just used the following Ruby line: 2045 * (0...32).each {|cv| puts (50*2**(cv/32.0)).round} 2046 * The results of the above expressions can be verified at 2047 * pre_computed_values. 2048 */ 2049 q = max_cll >> 5; 2050 r = max_cll % 32; 2051 max = (1 << q) * pre_computed_values[r]; 2052 2053 // min luminance: maxLum * (CV/255)^2 / 100 2054 q = DIV_ROUND_CLOSEST(min_cll, 255); 2055 min = max * DIV_ROUND_CLOSEST((q * q), 100); 2056 2057 caps->aux_max_input_signal = max; 2058 caps->aux_min_input_signal = min; 2059 } 2060 2061 void amdgpu_dm_update_connector_after_detect( 2062 struct amdgpu_dm_connector *aconnector) 2063 { 2064 struct drm_connector *connector = &aconnector->base; 2065 struct drm_device *dev = connector->dev; 2066 struct dc_sink *sink; 2067 2068 /* MST handled by drm_mst framework */ 2069 if (aconnector->mst_mgr.mst_state == true) 2070 return; 2071 2072 2073 sink = aconnector->dc_link->local_sink; 2074 if (sink) 2075 dc_sink_retain(sink); 2076 2077 /* 2078 * Edid mgmt connector gets first update only in mode_valid hook and then 2079 * the connector sink is set to either fake or physical sink depends on link status. 2080 * Skip if already done during boot. 2081 */ 2082 if (aconnector->base.force != DRM_FORCE_UNSPECIFIED 2083 && aconnector->dc_em_sink) { 2084 2085 /* 2086 * For S3 resume with headless use eml_sink to fake stream 2087 * because on resume connector->sink is set to NULL 2088 */ 2089 mutex_lock(&dev->mode_config.mutex); 2090 2091 if (sink) { 2092 if (aconnector->dc_sink) { 2093 amdgpu_dm_update_freesync_caps(connector, NULL); 2094 /* 2095 * retain and release below are used to 2096 * bump up refcount for sink because the link doesn't point 2097 * to it anymore after disconnect, so on next crtc to connector 2098 * reshuffle by UMD we will get into unwanted dc_sink release 2099 */ 2100 dc_sink_release(aconnector->dc_sink); 2101 } 2102 aconnector->dc_sink = sink; 2103 dc_sink_retain(aconnector->dc_sink); 2104 amdgpu_dm_update_freesync_caps(connector, 2105 aconnector->edid); 2106 } else { 2107 amdgpu_dm_update_freesync_caps(connector, NULL); 2108 if (!aconnector->dc_sink) { 2109 aconnector->dc_sink = aconnector->dc_em_sink; 2110 dc_sink_retain(aconnector->dc_sink); 2111 } 2112 } 2113 2114 mutex_unlock(&dev->mode_config.mutex); 2115 2116 if (sink) 2117 dc_sink_release(sink); 2118 return; 2119 } 2120 2121 /* 2122 * TODO: temporary guard to look for proper fix 2123 * if this sink is MST sink, we should not do anything 2124 */ 2125 if (sink && sink->sink_signal == SIGNAL_TYPE_DISPLAY_PORT_MST) { 2126 dc_sink_release(sink); 2127 return; 2128 } 2129 2130 if (aconnector->dc_sink == sink) { 2131 /* 2132 * We got a DP short pulse (Link Loss, DP CTS, etc...). 2133 * Do nothing!! 2134 */ 2135 DRM_DEBUG_DRIVER("DCHPD: connector_id=%d: dc_sink didn't change.\n", 2136 aconnector->connector_id); 2137 if (sink) 2138 dc_sink_release(sink); 2139 return; 2140 } 2141 2142 DRM_DEBUG_DRIVER("DCHPD: connector_id=%d: Old sink=%p New sink=%p\n", 2143 aconnector->connector_id, aconnector->dc_sink, sink); 2144 2145 mutex_lock(&dev->mode_config.mutex); 2146 2147 /* 2148 * 1. Update status of the drm connector 2149 * 2. Send an event and let userspace tell us what to do 2150 */ 2151 if (sink) { 2152 /* 2153 * TODO: check if we still need the S3 mode update workaround. 2154 * If yes, put it here. 2155 */ 2156 if (aconnector->dc_sink) 2157 amdgpu_dm_update_freesync_caps(connector, NULL); 2158 2159 aconnector->dc_sink = sink; 2160 dc_sink_retain(aconnector->dc_sink); 2161 if (sink->dc_edid.length == 0) { 2162 aconnector->edid = NULL; 2163 if (aconnector->dc_link->aux_mode) { 2164 drm_dp_cec_unset_edid( 2165 &aconnector->dm_dp_aux.aux); 2166 } 2167 } else { 2168 aconnector->edid = 2169 (struct edid *)sink->dc_edid.raw_edid; 2170 2171 drm_connector_update_edid_property(connector, 2172 aconnector->edid); 2173 2174 if (aconnector->dc_link->aux_mode) 2175 drm_dp_cec_set_edid(&aconnector->dm_dp_aux.aux, 2176 aconnector->edid); 2177 } 2178 2179 amdgpu_dm_update_freesync_caps(connector, aconnector->edid); 2180 update_connector_ext_caps(aconnector); 2181 } else { 2182 drm_dp_cec_unset_edid(&aconnector->dm_dp_aux.aux); 2183 amdgpu_dm_update_freesync_caps(connector, NULL); 2184 drm_connector_update_edid_property(connector, NULL); 2185 aconnector->num_modes = 0; 2186 dc_sink_release(aconnector->dc_sink); 2187 aconnector->dc_sink = NULL; 2188 aconnector->edid = NULL; 2189 #ifdef CONFIG_DRM_AMD_DC_HDCP 2190 /* Set CP to DESIRED if it was ENABLED, so we can re-enable it again on hotplug */ 2191 if (connector->state->content_protection == DRM_MODE_CONTENT_PROTECTION_ENABLED) 2192 connector->state->content_protection = DRM_MODE_CONTENT_PROTECTION_DESIRED; 2193 #endif 2194 } 2195 2196 mutex_unlock(&dev->mode_config.mutex); 2197 2198 if (sink) 2199 dc_sink_release(sink); 2200 } 2201 2202 static void handle_hpd_irq(void *param) 2203 { 2204 struct amdgpu_dm_connector *aconnector = (struct amdgpu_dm_connector *)param; 2205 struct drm_connector *connector = &aconnector->base; 2206 struct drm_device *dev = connector->dev; 2207 enum dc_connection_type new_connection_type = dc_connection_none; 2208 #ifdef CONFIG_DRM_AMD_DC_HDCP 2209 struct amdgpu_device *adev = dev->dev_private; 2210 #endif 2211 2212 /* 2213 * In case of failure or MST no need to update connector status or notify the OS 2214 * since (for MST case) MST does this in its own context. 2215 */ 2216 mutex_lock(&aconnector->hpd_lock); 2217 2218 #ifdef CONFIG_DRM_AMD_DC_HDCP 2219 if (adev->dm.hdcp_workqueue) 2220 hdcp_reset_display(adev->dm.hdcp_workqueue, aconnector->dc_link->link_index); 2221 #endif 2222 if (aconnector->fake_enable) 2223 aconnector->fake_enable = false; 2224 2225 if (!dc_link_detect_sink(aconnector->dc_link, &new_connection_type)) 2226 DRM_ERROR("KMS: Failed to detect connector\n"); 2227 2228 if (aconnector->base.force && new_connection_type == dc_connection_none) { 2229 emulated_link_detect(aconnector->dc_link); 2230 2231 2232 drm_modeset_lock_all(dev); 2233 dm_restore_drm_connector_state(dev, connector); 2234 drm_modeset_unlock_all(dev); 2235 2236 if (aconnector->base.force == DRM_FORCE_UNSPECIFIED) 2237 drm_kms_helper_hotplug_event(dev); 2238 2239 } else if (dc_link_detect(aconnector->dc_link, DETECT_REASON_HPD)) { 2240 amdgpu_dm_update_connector_after_detect(aconnector); 2241 2242 2243 drm_modeset_lock_all(dev); 2244 dm_restore_drm_connector_state(dev, connector); 2245 drm_modeset_unlock_all(dev); 2246 2247 if (aconnector->base.force == DRM_FORCE_UNSPECIFIED) 2248 drm_kms_helper_hotplug_event(dev); 2249 } 2250 mutex_unlock(&aconnector->hpd_lock); 2251 2252 } 2253 2254 static void dm_handle_hpd_rx_irq(struct amdgpu_dm_connector *aconnector) 2255 { 2256 uint8_t esi[DP_PSR_ERROR_STATUS - DP_SINK_COUNT_ESI] = { 0 }; 2257 uint8_t dret; 2258 bool new_irq_handled = false; 2259 int dpcd_addr; 2260 int dpcd_bytes_to_read; 2261 2262 const int max_process_count = 30; 2263 int process_count = 0; 2264 2265 const struct dc_link_status *link_status = dc_link_get_status(aconnector->dc_link); 2266 2267 if (link_status->dpcd_caps->dpcd_rev.raw < 0x12) { 2268 dpcd_bytes_to_read = DP_LANE0_1_STATUS - DP_SINK_COUNT; 2269 /* DPCD 0x200 - 0x201 for downstream IRQ */ 2270 dpcd_addr = DP_SINK_COUNT; 2271 } else { 2272 dpcd_bytes_to_read = DP_PSR_ERROR_STATUS - DP_SINK_COUNT_ESI; 2273 /* DPCD 0x2002 - 0x2005 for downstream IRQ */ 2274 dpcd_addr = DP_SINK_COUNT_ESI; 2275 } 2276 2277 dret = drm_dp_dpcd_read( 2278 &aconnector->dm_dp_aux.aux, 2279 dpcd_addr, 2280 esi, 2281 dpcd_bytes_to_read); 2282 2283 while (dret == dpcd_bytes_to_read && 2284 process_count < max_process_count) { 2285 uint8_t retry; 2286 dret = 0; 2287 2288 process_count++; 2289 2290 DRM_DEBUG_DRIVER("ESI %02x %02x %02x\n", esi[0], esi[1], esi[2]); 2291 /* handle HPD short pulse irq */ 2292 if (aconnector->mst_mgr.mst_state) 2293 drm_dp_mst_hpd_irq( 2294 &aconnector->mst_mgr, 2295 esi, 2296 &new_irq_handled); 2297 2298 if (new_irq_handled) { 2299 /* ACK at DPCD to notify down stream */ 2300 const int ack_dpcd_bytes_to_write = 2301 dpcd_bytes_to_read - 1; 2302 2303 for (retry = 0; retry < 3; retry++) { 2304 uint8_t wret; 2305 2306 wret = drm_dp_dpcd_write( 2307 &aconnector->dm_dp_aux.aux, 2308 dpcd_addr + 1, 2309 &esi[1], 2310 ack_dpcd_bytes_to_write); 2311 if (wret == ack_dpcd_bytes_to_write) 2312 break; 2313 } 2314 2315 /* check if there is new irq to be handled */ 2316 dret = drm_dp_dpcd_read( 2317 &aconnector->dm_dp_aux.aux, 2318 dpcd_addr, 2319 esi, 2320 dpcd_bytes_to_read); 2321 2322 new_irq_handled = false; 2323 } else { 2324 break; 2325 } 2326 } 2327 2328 if (process_count == max_process_count) 2329 DRM_DEBUG_DRIVER("Loop exceeded max iterations\n"); 2330 } 2331 2332 static void handle_hpd_rx_irq(void *param) 2333 { 2334 struct amdgpu_dm_connector *aconnector = (struct amdgpu_dm_connector *)param; 2335 struct drm_connector *connector = &aconnector->base; 2336 struct drm_device *dev = connector->dev; 2337 struct dc_link *dc_link = aconnector->dc_link; 2338 bool is_mst_root_connector = aconnector->mst_mgr.mst_state; 2339 enum dc_connection_type new_connection_type = dc_connection_none; 2340 #ifdef CONFIG_DRM_AMD_DC_HDCP 2341 union hpd_irq_data hpd_irq_data; 2342 struct amdgpu_device *adev = dev->dev_private; 2343 2344 memset(&hpd_irq_data, 0, sizeof(hpd_irq_data)); 2345 #endif 2346 2347 /* 2348 * TODO:Temporary add mutex to protect hpd interrupt not have a gpio 2349 * conflict, after implement i2c helper, this mutex should be 2350 * retired. 2351 */ 2352 if (dc_link->type != dc_connection_mst_branch) 2353 mutex_lock(&aconnector->hpd_lock); 2354 2355 2356 #ifdef CONFIG_DRM_AMD_DC_HDCP 2357 if (dc_link_handle_hpd_rx_irq(dc_link, &hpd_irq_data, NULL) && 2358 #else 2359 if (dc_link_handle_hpd_rx_irq(dc_link, NULL, NULL) && 2360 #endif 2361 !is_mst_root_connector) { 2362 /* Downstream Port status changed. */ 2363 if (!dc_link_detect_sink(dc_link, &new_connection_type)) 2364 DRM_ERROR("KMS: Failed to detect connector\n"); 2365 2366 if (aconnector->base.force && new_connection_type == dc_connection_none) { 2367 emulated_link_detect(dc_link); 2368 2369 if (aconnector->fake_enable) 2370 aconnector->fake_enable = false; 2371 2372 amdgpu_dm_update_connector_after_detect(aconnector); 2373 2374 2375 drm_modeset_lock_all(dev); 2376 dm_restore_drm_connector_state(dev, connector); 2377 drm_modeset_unlock_all(dev); 2378 2379 drm_kms_helper_hotplug_event(dev); 2380 } else if (dc_link_detect(dc_link, DETECT_REASON_HPDRX)) { 2381 2382 if (aconnector->fake_enable) 2383 aconnector->fake_enable = false; 2384 2385 amdgpu_dm_update_connector_after_detect(aconnector); 2386 2387 2388 drm_modeset_lock_all(dev); 2389 dm_restore_drm_connector_state(dev, connector); 2390 drm_modeset_unlock_all(dev); 2391 2392 drm_kms_helper_hotplug_event(dev); 2393 } 2394 } 2395 #ifdef CONFIG_DRM_AMD_DC_HDCP 2396 if (hpd_irq_data.bytes.device_service_irq.bits.CP_IRQ) { 2397 if (adev->dm.hdcp_workqueue) 2398 hdcp_handle_cpirq(adev->dm.hdcp_workqueue, aconnector->base.index); 2399 } 2400 #endif 2401 if ((dc_link->cur_link_settings.lane_count != LANE_COUNT_UNKNOWN) || 2402 (dc_link->type == dc_connection_mst_branch)) 2403 dm_handle_hpd_rx_irq(aconnector); 2404 2405 if (dc_link->type != dc_connection_mst_branch) { 2406 drm_dp_cec_irq(&aconnector->dm_dp_aux.aux); 2407 mutex_unlock(&aconnector->hpd_lock); 2408 } 2409 } 2410 2411 static void register_hpd_handlers(struct amdgpu_device *adev) 2412 { 2413 struct drm_device *dev = adev->ddev; 2414 struct drm_connector *connector; 2415 struct amdgpu_dm_connector *aconnector; 2416 const struct dc_link *dc_link; 2417 struct dc_interrupt_params int_params = {0}; 2418 2419 int_params.requested_polarity = INTERRUPT_POLARITY_DEFAULT; 2420 int_params.current_polarity = INTERRUPT_POLARITY_DEFAULT; 2421 2422 list_for_each_entry(connector, 2423 &dev->mode_config.connector_list, head) { 2424 2425 aconnector = to_amdgpu_dm_connector(connector); 2426 dc_link = aconnector->dc_link; 2427 2428 if (DC_IRQ_SOURCE_INVALID != dc_link->irq_source_hpd) { 2429 int_params.int_context = INTERRUPT_LOW_IRQ_CONTEXT; 2430 int_params.irq_source = dc_link->irq_source_hpd; 2431 2432 amdgpu_dm_irq_register_interrupt(adev, &int_params, 2433 handle_hpd_irq, 2434 (void *) aconnector); 2435 } 2436 2437 if (DC_IRQ_SOURCE_INVALID != dc_link->irq_source_hpd_rx) { 2438 2439 /* Also register for DP short pulse (hpd_rx). */ 2440 int_params.int_context = INTERRUPT_LOW_IRQ_CONTEXT; 2441 int_params.irq_source = dc_link->irq_source_hpd_rx; 2442 2443 amdgpu_dm_irq_register_interrupt(adev, &int_params, 2444 handle_hpd_rx_irq, 2445 (void *) aconnector); 2446 } 2447 } 2448 } 2449 2450 /* Register IRQ sources and initialize IRQ callbacks */ 2451 static int dce110_register_irq_handlers(struct amdgpu_device *adev) 2452 { 2453 struct dc *dc = adev->dm.dc; 2454 struct common_irq_params *c_irq_params; 2455 struct dc_interrupt_params int_params = {0}; 2456 int r; 2457 int i; 2458 unsigned client_id = AMDGPU_IRQ_CLIENTID_LEGACY; 2459 2460 if (adev->asic_type >= CHIP_VEGA10) 2461 client_id = SOC15_IH_CLIENTID_DCE; 2462 2463 int_params.requested_polarity = INTERRUPT_POLARITY_DEFAULT; 2464 int_params.current_polarity = INTERRUPT_POLARITY_DEFAULT; 2465 2466 /* 2467 * Actions of amdgpu_irq_add_id(): 2468 * 1. Register a set() function with base driver. 2469 * Base driver will call set() function to enable/disable an 2470 * interrupt in DC hardware. 2471 * 2. Register amdgpu_dm_irq_handler(). 2472 * Base driver will call amdgpu_dm_irq_handler() for ALL interrupts 2473 * coming from DC hardware. 2474 * amdgpu_dm_irq_handler() will re-direct the interrupt to DC 2475 * for acknowledging and handling. */ 2476 2477 /* Use VBLANK interrupt */ 2478 for (i = VISLANDS30_IV_SRCID_D1_VERTICAL_INTERRUPT0; i <= VISLANDS30_IV_SRCID_D6_VERTICAL_INTERRUPT0; i++) { 2479 r = amdgpu_irq_add_id(adev, client_id, i, &adev->crtc_irq); 2480 if (r) { 2481 DRM_ERROR("Failed to add crtc irq id!\n"); 2482 return r; 2483 } 2484 2485 int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT; 2486 int_params.irq_source = 2487 dc_interrupt_to_irq_source(dc, i, 0); 2488 2489 c_irq_params = &adev->dm.vblank_params[int_params.irq_source - DC_IRQ_SOURCE_VBLANK1]; 2490 2491 c_irq_params->adev = adev; 2492 c_irq_params->irq_src = int_params.irq_source; 2493 2494 amdgpu_dm_irq_register_interrupt(adev, &int_params, 2495 dm_crtc_high_irq, c_irq_params); 2496 } 2497 2498 /* Use VUPDATE interrupt */ 2499 for (i = VISLANDS30_IV_SRCID_D1_V_UPDATE_INT; i <= VISLANDS30_IV_SRCID_D6_V_UPDATE_INT; i += 2) { 2500 r = amdgpu_irq_add_id(adev, client_id, i, &adev->vupdate_irq); 2501 if (r) { 2502 DRM_ERROR("Failed to add vupdate irq id!\n"); 2503 return r; 2504 } 2505 2506 int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT; 2507 int_params.irq_source = 2508 dc_interrupt_to_irq_source(dc, i, 0); 2509 2510 c_irq_params = &adev->dm.vupdate_params[int_params.irq_source - DC_IRQ_SOURCE_VUPDATE1]; 2511 2512 c_irq_params->adev = adev; 2513 c_irq_params->irq_src = int_params.irq_source; 2514 2515 amdgpu_dm_irq_register_interrupt(adev, &int_params, 2516 dm_vupdate_high_irq, c_irq_params); 2517 } 2518 2519 /* Use GRPH_PFLIP interrupt */ 2520 for (i = VISLANDS30_IV_SRCID_D1_GRPH_PFLIP; 2521 i <= VISLANDS30_IV_SRCID_D6_GRPH_PFLIP; i += 2) { 2522 r = amdgpu_irq_add_id(adev, client_id, i, &adev->pageflip_irq); 2523 if (r) { 2524 DRM_ERROR("Failed to add page flip irq id!\n"); 2525 return r; 2526 } 2527 2528 int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT; 2529 int_params.irq_source = 2530 dc_interrupt_to_irq_source(dc, i, 0); 2531 2532 c_irq_params = &adev->dm.pflip_params[int_params.irq_source - DC_IRQ_SOURCE_PFLIP_FIRST]; 2533 2534 c_irq_params->adev = adev; 2535 c_irq_params->irq_src = int_params.irq_source; 2536 2537 amdgpu_dm_irq_register_interrupt(adev, &int_params, 2538 dm_pflip_high_irq, c_irq_params); 2539 2540 } 2541 2542 /* HPD */ 2543 r = amdgpu_irq_add_id(adev, client_id, 2544 VISLANDS30_IV_SRCID_HOTPLUG_DETECT_A, &adev->hpd_irq); 2545 if (r) { 2546 DRM_ERROR("Failed to add hpd irq id!\n"); 2547 return r; 2548 } 2549 2550 register_hpd_handlers(adev); 2551 2552 return 0; 2553 } 2554 2555 #if defined(CONFIG_DRM_AMD_DC_DCN) 2556 /* Register IRQ sources and initialize IRQ callbacks */ 2557 static int dcn10_register_irq_handlers(struct amdgpu_device *adev) 2558 { 2559 struct dc *dc = adev->dm.dc; 2560 struct common_irq_params *c_irq_params; 2561 struct dc_interrupt_params int_params = {0}; 2562 int r; 2563 int i; 2564 2565 int_params.requested_polarity = INTERRUPT_POLARITY_DEFAULT; 2566 int_params.current_polarity = INTERRUPT_POLARITY_DEFAULT; 2567 2568 /* 2569 * Actions of amdgpu_irq_add_id(): 2570 * 1. Register a set() function with base driver. 2571 * Base driver will call set() function to enable/disable an 2572 * interrupt in DC hardware. 2573 * 2. Register amdgpu_dm_irq_handler(). 2574 * Base driver will call amdgpu_dm_irq_handler() for ALL interrupts 2575 * coming from DC hardware. 2576 * amdgpu_dm_irq_handler() will re-direct the interrupt to DC 2577 * for acknowledging and handling. 2578 */ 2579 2580 /* Use VSTARTUP interrupt */ 2581 for (i = DCN_1_0__SRCID__DC_D1_OTG_VSTARTUP; 2582 i <= DCN_1_0__SRCID__DC_D1_OTG_VSTARTUP + adev->mode_info.num_crtc - 1; 2583 i++) { 2584 r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_DCE, i, &adev->crtc_irq); 2585 2586 if (r) { 2587 DRM_ERROR("Failed to add crtc irq id!\n"); 2588 return r; 2589 } 2590 2591 int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT; 2592 int_params.irq_source = 2593 dc_interrupt_to_irq_source(dc, i, 0); 2594 2595 c_irq_params = &adev->dm.vblank_params[int_params.irq_source - DC_IRQ_SOURCE_VBLANK1]; 2596 2597 c_irq_params->adev = adev; 2598 c_irq_params->irq_src = int_params.irq_source; 2599 2600 amdgpu_dm_irq_register_interrupt( 2601 adev, &int_params, dm_crtc_high_irq, c_irq_params); 2602 } 2603 2604 /* Use VUPDATE_NO_LOCK interrupt on DCN, which seems to correspond to 2605 * the regular VUPDATE interrupt on DCE. We want DC_IRQ_SOURCE_VUPDATEx 2606 * to trigger at end of each vblank, regardless of state of the lock, 2607 * matching DCE behaviour. 2608 */ 2609 for (i = DCN_1_0__SRCID__OTG0_IHC_V_UPDATE_NO_LOCK_INTERRUPT; 2610 i <= DCN_1_0__SRCID__OTG0_IHC_V_UPDATE_NO_LOCK_INTERRUPT + adev->mode_info.num_crtc - 1; 2611 i++) { 2612 r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_DCE, i, &adev->vupdate_irq); 2613 2614 if (r) { 2615 DRM_ERROR("Failed to add vupdate irq id!\n"); 2616 return r; 2617 } 2618 2619 int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT; 2620 int_params.irq_source = 2621 dc_interrupt_to_irq_source(dc, i, 0); 2622 2623 c_irq_params = &adev->dm.vupdate_params[int_params.irq_source - DC_IRQ_SOURCE_VUPDATE1]; 2624 2625 c_irq_params->adev = adev; 2626 c_irq_params->irq_src = int_params.irq_source; 2627 2628 amdgpu_dm_irq_register_interrupt(adev, &int_params, 2629 dm_vupdate_high_irq, c_irq_params); 2630 } 2631 2632 /* Use GRPH_PFLIP interrupt */ 2633 for (i = DCN_1_0__SRCID__HUBP0_FLIP_INTERRUPT; 2634 i <= DCN_1_0__SRCID__HUBP0_FLIP_INTERRUPT + adev->mode_info.num_crtc - 1; 2635 i++) { 2636 r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_DCE, i, &adev->pageflip_irq); 2637 if (r) { 2638 DRM_ERROR("Failed to add page flip irq id!\n"); 2639 return r; 2640 } 2641 2642 int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT; 2643 int_params.irq_source = 2644 dc_interrupt_to_irq_source(dc, i, 0); 2645 2646 c_irq_params = &adev->dm.pflip_params[int_params.irq_source - DC_IRQ_SOURCE_PFLIP_FIRST]; 2647 2648 c_irq_params->adev = adev; 2649 c_irq_params->irq_src = int_params.irq_source; 2650 2651 amdgpu_dm_irq_register_interrupt(adev, &int_params, 2652 dm_pflip_high_irq, c_irq_params); 2653 2654 } 2655 2656 /* HPD */ 2657 r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_DCE, DCN_1_0__SRCID__DC_HPD1_INT, 2658 &adev->hpd_irq); 2659 if (r) { 2660 DRM_ERROR("Failed to add hpd irq id!\n"); 2661 return r; 2662 } 2663 2664 register_hpd_handlers(adev); 2665 2666 return 0; 2667 } 2668 #endif 2669 2670 /* 2671 * Acquires the lock for the atomic state object and returns 2672 * the new atomic state. 2673 * 2674 * This should only be called during atomic check. 2675 */ 2676 static int dm_atomic_get_state(struct drm_atomic_state *state, 2677 struct dm_atomic_state **dm_state) 2678 { 2679 struct drm_device *dev = state->dev; 2680 struct amdgpu_device *adev = dev->dev_private; 2681 struct amdgpu_display_manager *dm = &adev->dm; 2682 struct drm_private_state *priv_state; 2683 2684 if (*dm_state) 2685 return 0; 2686 2687 priv_state = drm_atomic_get_private_obj_state(state, &dm->atomic_obj); 2688 if (IS_ERR(priv_state)) 2689 return PTR_ERR(priv_state); 2690 2691 *dm_state = to_dm_atomic_state(priv_state); 2692 2693 return 0; 2694 } 2695 2696 struct dm_atomic_state * 2697 dm_atomic_get_new_state(struct drm_atomic_state *state) 2698 { 2699 struct drm_device *dev = state->dev; 2700 struct amdgpu_device *adev = dev->dev_private; 2701 struct amdgpu_display_manager *dm = &adev->dm; 2702 struct drm_private_obj *obj; 2703 struct drm_private_state *new_obj_state; 2704 int i; 2705 2706 for_each_new_private_obj_in_state(state, obj, new_obj_state, i) { 2707 if (obj->funcs == dm->atomic_obj.funcs) 2708 return to_dm_atomic_state(new_obj_state); 2709 } 2710 2711 return NULL; 2712 } 2713 2714 struct dm_atomic_state * 2715 dm_atomic_get_old_state(struct drm_atomic_state *state) 2716 { 2717 struct drm_device *dev = state->dev; 2718 struct amdgpu_device *adev = dev->dev_private; 2719 struct amdgpu_display_manager *dm = &adev->dm; 2720 struct drm_private_obj *obj; 2721 struct drm_private_state *old_obj_state; 2722 int i; 2723 2724 for_each_old_private_obj_in_state(state, obj, old_obj_state, i) { 2725 if (obj->funcs == dm->atomic_obj.funcs) 2726 return to_dm_atomic_state(old_obj_state); 2727 } 2728 2729 return NULL; 2730 } 2731 2732 static struct drm_private_state * 2733 dm_atomic_duplicate_state(struct drm_private_obj *obj) 2734 { 2735 struct dm_atomic_state *old_state, *new_state; 2736 2737 new_state = kzalloc(sizeof(*new_state), GFP_KERNEL); 2738 if (!new_state) 2739 return NULL; 2740 2741 __drm_atomic_helper_private_obj_duplicate_state(obj, &new_state->base); 2742 2743 old_state = to_dm_atomic_state(obj->state); 2744 2745 if (old_state && old_state->context) 2746 new_state->context = dc_copy_state(old_state->context); 2747 2748 if (!new_state->context) { 2749 kfree(new_state); 2750 return NULL; 2751 } 2752 2753 return &new_state->base; 2754 } 2755 2756 static void dm_atomic_destroy_state(struct drm_private_obj *obj, 2757 struct drm_private_state *state) 2758 { 2759 struct dm_atomic_state *dm_state = to_dm_atomic_state(state); 2760 2761 if (dm_state && dm_state->context) 2762 dc_release_state(dm_state->context); 2763 2764 kfree(dm_state); 2765 } 2766 2767 static struct drm_private_state_funcs dm_atomic_state_funcs = { 2768 .atomic_duplicate_state = dm_atomic_duplicate_state, 2769 .atomic_destroy_state = dm_atomic_destroy_state, 2770 }; 2771 2772 static int amdgpu_dm_mode_config_init(struct amdgpu_device *adev) 2773 { 2774 struct dm_atomic_state *state; 2775 int r; 2776 2777 adev->mode_info.mode_config_initialized = true; 2778 2779 adev->ddev->mode_config.funcs = (void *)&amdgpu_dm_mode_funcs; 2780 adev->ddev->mode_config.helper_private = &amdgpu_dm_mode_config_helperfuncs; 2781 2782 adev->ddev->mode_config.max_width = 16384; 2783 adev->ddev->mode_config.max_height = 16384; 2784 2785 adev->ddev->mode_config.preferred_depth = 24; 2786 adev->ddev->mode_config.prefer_shadow = 1; 2787 /* indicates support for immediate flip */ 2788 adev->ddev->mode_config.async_page_flip = true; 2789 2790 adev->ddev->mode_config.fb_base = adev->gmc.aper_base; 2791 2792 state = kzalloc(sizeof(*state), GFP_KERNEL); 2793 if (!state) 2794 return -ENOMEM; 2795 2796 state->context = dc_create_state(adev->dm.dc); 2797 if (!state->context) { 2798 kfree(state); 2799 return -ENOMEM; 2800 } 2801 2802 dc_resource_state_copy_construct_current(adev->dm.dc, state->context); 2803 2804 drm_atomic_private_obj_init(adev->ddev, 2805 &adev->dm.atomic_obj, 2806 &state->base, 2807 &dm_atomic_state_funcs); 2808 2809 r = amdgpu_display_modeset_create_props(adev); 2810 if (r) 2811 return r; 2812 2813 r = amdgpu_dm_audio_init(adev); 2814 if (r) 2815 return r; 2816 2817 return 0; 2818 } 2819 2820 #define AMDGPU_DM_DEFAULT_MIN_BACKLIGHT 12 2821 #define AMDGPU_DM_DEFAULT_MAX_BACKLIGHT 255 2822 #define AUX_BL_DEFAULT_TRANSITION_TIME_MS 50 2823 2824 #if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) ||\ 2825 defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE) 2826 2827 static void amdgpu_dm_update_backlight_caps(struct amdgpu_display_manager *dm) 2828 { 2829 #if defined(CONFIG_ACPI) 2830 struct amdgpu_dm_backlight_caps caps; 2831 2832 if (dm->backlight_caps.caps_valid) 2833 return; 2834 2835 amdgpu_acpi_get_backlight_caps(dm->adev, &caps); 2836 if (caps.caps_valid) { 2837 dm->backlight_caps.caps_valid = true; 2838 if (caps.aux_support) 2839 return; 2840 dm->backlight_caps.min_input_signal = caps.min_input_signal; 2841 dm->backlight_caps.max_input_signal = caps.max_input_signal; 2842 } else { 2843 dm->backlight_caps.min_input_signal = 2844 AMDGPU_DM_DEFAULT_MIN_BACKLIGHT; 2845 dm->backlight_caps.max_input_signal = 2846 AMDGPU_DM_DEFAULT_MAX_BACKLIGHT; 2847 } 2848 #else 2849 if (dm->backlight_caps.aux_support) 2850 return; 2851 2852 dm->backlight_caps.min_input_signal = AMDGPU_DM_DEFAULT_MIN_BACKLIGHT; 2853 dm->backlight_caps.max_input_signal = AMDGPU_DM_DEFAULT_MAX_BACKLIGHT; 2854 #endif 2855 } 2856 2857 static int set_backlight_via_aux(struct dc_link *link, uint32_t brightness) 2858 { 2859 bool rc; 2860 2861 if (!link) 2862 return 1; 2863 2864 rc = dc_link_set_backlight_level_nits(link, true, brightness, 2865 AUX_BL_DEFAULT_TRANSITION_TIME_MS); 2866 2867 return rc ? 0 : 1; 2868 } 2869 2870 static u32 convert_brightness(const struct amdgpu_dm_backlight_caps *caps, 2871 const uint32_t user_brightness) 2872 { 2873 u32 min, max, conversion_pace; 2874 u32 brightness = user_brightness; 2875 2876 if (!caps) 2877 goto out; 2878 2879 if (!caps->aux_support) { 2880 max = caps->max_input_signal; 2881 min = caps->min_input_signal; 2882 /* 2883 * The brightness input is in the range 0-255 2884 * It needs to be rescaled to be between the 2885 * requested min and max input signal 2886 * It also needs to be scaled up by 0x101 to 2887 * match the DC interface which has a range of 2888 * 0 to 0xffff 2889 */ 2890 conversion_pace = 0x101; 2891 brightness = 2892 user_brightness 2893 * conversion_pace 2894 * (max - min) 2895 / AMDGPU_MAX_BL_LEVEL 2896 + min * conversion_pace; 2897 } else { 2898 /* TODO 2899 * We are doing a linear interpolation here, which is OK but 2900 * does not provide the optimal result. We probably want 2901 * something close to the Perceptual Quantizer (PQ) curve. 2902 */ 2903 max = caps->aux_max_input_signal; 2904 min = caps->aux_min_input_signal; 2905 2906 brightness = (AMDGPU_MAX_BL_LEVEL - user_brightness) * min 2907 + user_brightness * max; 2908 // Multiple the value by 1000 since we use millinits 2909 brightness *= 1000; 2910 brightness = DIV_ROUND_CLOSEST(brightness, AMDGPU_MAX_BL_LEVEL); 2911 } 2912 2913 out: 2914 return brightness; 2915 } 2916 2917 static int amdgpu_dm_backlight_update_status(struct backlight_device *bd) 2918 { 2919 struct amdgpu_display_manager *dm = bl_get_data(bd); 2920 struct amdgpu_dm_backlight_caps caps; 2921 struct dc_link *link = NULL; 2922 u32 brightness; 2923 bool rc; 2924 2925 amdgpu_dm_update_backlight_caps(dm); 2926 caps = dm->backlight_caps; 2927 2928 link = (struct dc_link *)dm->backlight_link; 2929 2930 brightness = convert_brightness(&caps, bd->props.brightness); 2931 // Change brightness based on AUX property 2932 if (caps.aux_support) 2933 return set_backlight_via_aux(link, brightness); 2934 2935 rc = dc_link_set_backlight_level(dm->backlight_link, brightness, 0); 2936 2937 return rc ? 0 : 1; 2938 } 2939 2940 static int amdgpu_dm_backlight_get_brightness(struct backlight_device *bd) 2941 { 2942 struct amdgpu_display_manager *dm = bl_get_data(bd); 2943 int ret = dc_link_get_backlight_level(dm->backlight_link); 2944 2945 if (ret == DC_ERROR_UNEXPECTED) 2946 return bd->props.brightness; 2947 return ret; 2948 } 2949 2950 static const struct backlight_ops amdgpu_dm_backlight_ops = { 2951 .options = BL_CORE_SUSPENDRESUME, 2952 .get_brightness = amdgpu_dm_backlight_get_brightness, 2953 .update_status = amdgpu_dm_backlight_update_status, 2954 }; 2955 2956 static void 2957 amdgpu_dm_register_backlight_device(struct amdgpu_display_manager *dm) 2958 { 2959 char bl_name[16]; 2960 struct backlight_properties props = { 0 }; 2961 2962 amdgpu_dm_update_backlight_caps(dm); 2963 2964 props.max_brightness = AMDGPU_MAX_BL_LEVEL; 2965 props.brightness = AMDGPU_MAX_BL_LEVEL; 2966 props.type = BACKLIGHT_RAW; 2967 2968 snprintf(bl_name, sizeof(bl_name), "amdgpu_bl%d", 2969 dm->adev->ddev->primary->index); 2970 2971 dm->backlight_dev = backlight_device_register(bl_name, 2972 dm->adev->ddev->dev, 2973 dm, 2974 &amdgpu_dm_backlight_ops, 2975 &props); 2976 2977 if (IS_ERR(dm->backlight_dev)) 2978 DRM_ERROR("DM: Backlight registration failed!\n"); 2979 else 2980 DRM_DEBUG_DRIVER("DM: Registered Backlight device: %s\n", bl_name); 2981 } 2982 2983 #endif 2984 2985 static int initialize_plane(struct amdgpu_display_manager *dm, 2986 struct amdgpu_mode_info *mode_info, int plane_id, 2987 enum drm_plane_type plane_type, 2988 const struct dc_plane_cap *plane_cap) 2989 { 2990 struct drm_plane *plane; 2991 unsigned long possible_crtcs; 2992 int ret = 0; 2993 2994 plane = kzalloc(sizeof(struct drm_plane), GFP_KERNEL); 2995 if (!plane) { 2996 DRM_ERROR("KMS: Failed to allocate plane\n"); 2997 return -ENOMEM; 2998 } 2999 plane->type = plane_type; 3000 3001 /* 3002 * HACK: IGT tests expect that the primary plane for a CRTC 3003 * can only have one possible CRTC. Only expose support for 3004 * any CRTC if they're not going to be used as a primary plane 3005 * for a CRTC - like overlay or underlay planes. 3006 */ 3007 possible_crtcs = 1 << plane_id; 3008 if (plane_id >= dm->dc->caps.max_streams) 3009 possible_crtcs = 0xff; 3010 3011 ret = amdgpu_dm_plane_init(dm, plane, possible_crtcs, plane_cap); 3012 3013 if (ret) { 3014 DRM_ERROR("KMS: Failed to initialize plane\n"); 3015 kfree(plane); 3016 return ret; 3017 } 3018 3019 if (mode_info) 3020 mode_info->planes[plane_id] = plane; 3021 3022 return ret; 3023 } 3024 3025 3026 static void register_backlight_device(struct amdgpu_display_manager *dm, 3027 struct dc_link *link) 3028 { 3029 #if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) ||\ 3030 defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE) 3031 3032 if ((link->connector_signal & (SIGNAL_TYPE_EDP | SIGNAL_TYPE_LVDS)) && 3033 link->type != dc_connection_none) { 3034 /* 3035 * Event if registration failed, we should continue with 3036 * DM initialization because not having a backlight control 3037 * is better then a black screen. 3038 */ 3039 amdgpu_dm_register_backlight_device(dm); 3040 3041 if (dm->backlight_dev) 3042 dm->backlight_link = link; 3043 } 3044 #endif 3045 } 3046 3047 3048 /* 3049 * In this architecture, the association 3050 * connector -> encoder -> crtc 3051 * id not really requried. The crtc and connector will hold the 3052 * display_index as an abstraction to use with DAL component 3053 * 3054 * Returns 0 on success 3055 */ 3056 static int amdgpu_dm_initialize_drm_device(struct amdgpu_device *adev) 3057 { 3058 struct amdgpu_display_manager *dm = &adev->dm; 3059 int32_t i; 3060 struct amdgpu_dm_connector *aconnector = NULL; 3061 struct amdgpu_encoder *aencoder = NULL; 3062 struct amdgpu_mode_info *mode_info = &adev->mode_info; 3063 uint32_t link_cnt; 3064 int32_t primary_planes; 3065 enum dc_connection_type new_connection_type = dc_connection_none; 3066 const struct dc_plane_cap *plane; 3067 3068 link_cnt = dm->dc->caps.max_links; 3069 if (amdgpu_dm_mode_config_init(dm->adev)) { 3070 DRM_ERROR("DM: Failed to initialize mode config\n"); 3071 return -EINVAL; 3072 } 3073 3074 /* There is one primary plane per CRTC */ 3075 primary_planes = dm->dc->caps.max_streams; 3076 ASSERT(primary_planes <= AMDGPU_MAX_PLANES); 3077 3078 /* 3079 * Initialize primary planes, implicit planes for legacy IOCTLS. 3080 * Order is reversed to match iteration order in atomic check. 3081 */ 3082 for (i = (primary_planes - 1); i >= 0; i--) { 3083 plane = &dm->dc->caps.planes[i]; 3084 3085 if (initialize_plane(dm, mode_info, i, 3086 DRM_PLANE_TYPE_PRIMARY, plane)) { 3087 DRM_ERROR("KMS: Failed to initialize primary plane\n"); 3088 goto fail; 3089 } 3090 } 3091 3092 /* 3093 * Initialize overlay planes, index starting after primary planes. 3094 * These planes have a higher DRM index than the primary planes since 3095 * they should be considered as having a higher z-order. 3096 * Order is reversed to match iteration order in atomic check. 3097 * 3098 * Only support DCN for now, and only expose one so we don't encourage 3099 * userspace to use up all the pipes. 3100 */ 3101 for (i = 0; i < dm->dc->caps.max_planes; ++i) { 3102 struct dc_plane_cap *plane = &dm->dc->caps.planes[i]; 3103 3104 if (plane->type != DC_PLANE_TYPE_DCN_UNIVERSAL) 3105 continue; 3106 3107 if (!plane->blends_with_above || !plane->blends_with_below) 3108 continue; 3109 3110 if (!plane->pixel_format_support.argb8888) 3111 continue; 3112 3113 if (initialize_plane(dm, NULL, primary_planes + i, 3114 DRM_PLANE_TYPE_OVERLAY, plane)) { 3115 DRM_ERROR("KMS: Failed to initialize overlay plane\n"); 3116 goto fail; 3117 } 3118 3119 /* Only create one overlay plane. */ 3120 break; 3121 } 3122 3123 for (i = 0; i < dm->dc->caps.max_streams; i++) 3124 if (amdgpu_dm_crtc_init(dm, mode_info->planes[i], i)) { 3125 DRM_ERROR("KMS: Failed to initialize crtc\n"); 3126 goto fail; 3127 } 3128 3129 dm->display_indexes_num = dm->dc->caps.max_streams; 3130 3131 /* loops over all connectors on the board */ 3132 for (i = 0; i < link_cnt; i++) { 3133 struct dc_link *link = NULL; 3134 3135 if (i > AMDGPU_DM_MAX_DISPLAY_INDEX) { 3136 DRM_ERROR( 3137 "KMS: Cannot support more than %d display indexes\n", 3138 AMDGPU_DM_MAX_DISPLAY_INDEX); 3139 continue; 3140 } 3141 3142 aconnector = kzalloc(sizeof(*aconnector), GFP_KERNEL); 3143 if (!aconnector) 3144 goto fail; 3145 3146 aencoder = kzalloc(sizeof(*aencoder), GFP_KERNEL); 3147 if (!aencoder) 3148 goto fail; 3149 3150 if (amdgpu_dm_encoder_init(dm->ddev, aencoder, i)) { 3151 DRM_ERROR("KMS: Failed to initialize encoder\n"); 3152 goto fail; 3153 } 3154 3155 if (amdgpu_dm_connector_init(dm, aconnector, i, aencoder)) { 3156 DRM_ERROR("KMS: Failed to initialize connector\n"); 3157 goto fail; 3158 } 3159 3160 link = dc_get_link_at_index(dm->dc, i); 3161 3162 if (!dc_link_detect_sink(link, &new_connection_type)) 3163 DRM_ERROR("KMS: Failed to detect connector\n"); 3164 3165 if (aconnector->base.force && new_connection_type == dc_connection_none) { 3166 emulated_link_detect(link); 3167 amdgpu_dm_update_connector_after_detect(aconnector); 3168 3169 } else if (dc_link_detect(link, DETECT_REASON_BOOT)) { 3170 amdgpu_dm_update_connector_after_detect(aconnector); 3171 register_backlight_device(dm, link); 3172 if (amdgpu_dc_feature_mask & DC_PSR_MASK) 3173 amdgpu_dm_set_psr_caps(link); 3174 } 3175 3176 3177 } 3178 3179 /* Software is initialized. Now we can register interrupt handlers. */ 3180 switch (adev->asic_type) { 3181 case CHIP_BONAIRE: 3182 case CHIP_HAWAII: 3183 case CHIP_KAVERI: 3184 case CHIP_KABINI: 3185 case CHIP_MULLINS: 3186 case CHIP_TONGA: 3187 case CHIP_FIJI: 3188 case CHIP_CARRIZO: 3189 case CHIP_STONEY: 3190 case CHIP_POLARIS11: 3191 case CHIP_POLARIS10: 3192 case CHIP_POLARIS12: 3193 case CHIP_VEGAM: 3194 case CHIP_VEGA10: 3195 case CHIP_VEGA12: 3196 case CHIP_VEGA20: 3197 if (dce110_register_irq_handlers(dm->adev)) { 3198 DRM_ERROR("DM: Failed to initialize IRQ\n"); 3199 goto fail; 3200 } 3201 break; 3202 #if defined(CONFIG_DRM_AMD_DC_DCN) 3203 case CHIP_RAVEN: 3204 case CHIP_NAVI12: 3205 case CHIP_NAVI10: 3206 case CHIP_NAVI14: 3207 case CHIP_RENOIR: 3208 if (dcn10_register_irq_handlers(dm->adev)) { 3209 DRM_ERROR("DM: Failed to initialize IRQ\n"); 3210 goto fail; 3211 } 3212 break; 3213 #endif 3214 default: 3215 DRM_ERROR("Unsupported ASIC type: 0x%X\n", adev->asic_type); 3216 goto fail; 3217 } 3218 3219 /* No userspace support. */ 3220 dm->dc->debug.disable_tri_buf = true; 3221 3222 return 0; 3223 fail: 3224 kfree(aencoder); 3225 kfree(aconnector); 3226 3227 return -EINVAL; 3228 } 3229 3230 static void amdgpu_dm_destroy_drm_device(struct amdgpu_display_manager *dm) 3231 { 3232 drm_mode_config_cleanup(dm->ddev); 3233 drm_atomic_private_obj_fini(&dm->atomic_obj); 3234 return; 3235 } 3236 3237 /****************************************************************************** 3238 * amdgpu_display_funcs functions 3239 *****************************************************************************/ 3240 3241 /* 3242 * dm_bandwidth_update - program display watermarks 3243 * 3244 * @adev: amdgpu_device pointer 3245 * 3246 * Calculate and program the display watermarks and line buffer allocation. 3247 */ 3248 static void dm_bandwidth_update(struct amdgpu_device *adev) 3249 { 3250 /* TODO: implement later */ 3251 } 3252 3253 static const struct amdgpu_display_funcs dm_display_funcs = { 3254 .bandwidth_update = dm_bandwidth_update, /* called unconditionally */ 3255 .vblank_get_counter = dm_vblank_get_counter,/* called unconditionally */ 3256 .backlight_set_level = NULL, /* never called for DC */ 3257 .backlight_get_level = NULL, /* never called for DC */ 3258 .hpd_sense = NULL,/* called unconditionally */ 3259 .hpd_set_polarity = NULL, /* called unconditionally */ 3260 .hpd_get_gpio_reg = NULL, /* VBIOS parsing. DAL does it. */ 3261 .page_flip_get_scanoutpos = 3262 dm_crtc_get_scanoutpos,/* called unconditionally */ 3263 .add_encoder = NULL, /* VBIOS parsing. DAL does it. */ 3264 .add_connector = NULL, /* VBIOS parsing. DAL does it. */ 3265 }; 3266 3267 #if defined(CONFIG_DEBUG_KERNEL_DC) 3268 3269 static ssize_t s3_debug_store(struct device *device, 3270 struct device_attribute *attr, 3271 const char *buf, 3272 size_t count) 3273 { 3274 int ret; 3275 int s3_state; 3276 struct drm_device *drm_dev = dev_get_drvdata(device); 3277 struct amdgpu_device *adev = drm_dev->dev_private; 3278 3279 ret = kstrtoint(buf, 0, &s3_state); 3280 3281 if (ret == 0) { 3282 if (s3_state) { 3283 dm_resume(adev); 3284 drm_kms_helper_hotplug_event(adev->ddev); 3285 } else 3286 dm_suspend(adev); 3287 } 3288 3289 return ret == 0 ? count : 0; 3290 } 3291 3292 DEVICE_ATTR_WO(s3_debug); 3293 3294 #endif 3295 3296 static int dm_early_init(void *handle) 3297 { 3298 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 3299 3300 switch (adev->asic_type) { 3301 case CHIP_BONAIRE: 3302 case CHIP_HAWAII: 3303 adev->mode_info.num_crtc = 6; 3304 adev->mode_info.num_hpd = 6; 3305 adev->mode_info.num_dig = 6; 3306 break; 3307 case CHIP_KAVERI: 3308 adev->mode_info.num_crtc = 4; 3309 adev->mode_info.num_hpd = 6; 3310 adev->mode_info.num_dig = 7; 3311 break; 3312 case CHIP_KABINI: 3313 case CHIP_MULLINS: 3314 adev->mode_info.num_crtc = 2; 3315 adev->mode_info.num_hpd = 6; 3316 adev->mode_info.num_dig = 6; 3317 break; 3318 case CHIP_FIJI: 3319 case CHIP_TONGA: 3320 adev->mode_info.num_crtc = 6; 3321 adev->mode_info.num_hpd = 6; 3322 adev->mode_info.num_dig = 7; 3323 break; 3324 case CHIP_CARRIZO: 3325 adev->mode_info.num_crtc = 3; 3326 adev->mode_info.num_hpd = 6; 3327 adev->mode_info.num_dig = 9; 3328 break; 3329 case CHIP_STONEY: 3330 adev->mode_info.num_crtc = 2; 3331 adev->mode_info.num_hpd = 6; 3332 adev->mode_info.num_dig = 9; 3333 break; 3334 case CHIP_POLARIS11: 3335 case CHIP_POLARIS12: 3336 adev->mode_info.num_crtc = 5; 3337 adev->mode_info.num_hpd = 5; 3338 adev->mode_info.num_dig = 5; 3339 break; 3340 case CHIP_POLARIS10: 3341 case CHIP_VEGAM: 3342 adev->mode_info.num_crtc = 6; 3343 adev->mode_info.num_hpd = 6; 3344 adev->mode_info.num_dig = 6; 3345 break; 3346 case CHIP_VEGA10: 3347 case CHIP_VEGA12: 3348 case CHIP_VEGA20: 3349 adev->mode_info.num_crtc = 6; 3350 adev->mode_info.num_hpd = 6; 3351 adev->mode_info.num_dig = 6; 3352 break; 3353 #if defined(CONFIG_DRM_AMD_DC_DCN) 3354 case CHIP_RAVEN: 3355 adev->mode_info.num_crtc = 4; 3356 adev->mode_info.num_hpd = 4; 3357 adev->mode_info.num_dig = 4; 3358 break; 3359 #endif 3360 case CHIP_NAVI10: 3361 case CHIP_NAVI12: 3362 adev->mode_info.num_crtc = 6; 3363 adev->mode_info.num_hpd = 6; 3364 adev->mode_info.num_dig = 6; 3365 break; 3366 case CHIP_NAVI14: 3367 adev->mode_info.num_crtc = 5; 3368 adev->mode_info.num_hpd = 5; 3369 adev->mode_info.num_dig = 5; 3370 break; 3371 case CHIP_RENOIR: 3372 adev->mode_info.num_crtc = 4; 3373 adev->mode_info.num_hpd = 4; 3374 adev->mode_info.num_dig = 4; 3375 break; 3376 default: 3377 DRM_ERROR("Unsupported ASIC type: 0x%X\n", adev->asic_type); 3378 return -EINVAL; 3379 } 3380 3381 amdgpu_dm_set_irq_funcs(adev); 3382 3383 if (adev->mode_info.funcs == NULL) 3384 adev->mode_info.funcs = &dm_display_funcs; 3385 3386 /* 3387 * Note: Do NOT change adev->audio_endpt_rreg and 3388 * adev->audio_endpt_wreg because they are initialised in 3389 * amdgpu_device_init() 3390 */ 3391 #if defined(CONFIG_DEBUG_KERNEL_DC) 3392 device_create_file( 3393 adev->ddev->dev, 3394 &dev_attr_s3_debug); 3395 #endif 3396 3397 return 0; 3398 } 3399 3400 static bool modeset_required(struct drm_crtc_state *crtc_state, 3401 struct dc_stream_state *new_stream, 3402 struct dc_stream_state *old_stream) 3403 { 3404 if (!drm_atomic_crtc_needs_modeset(crtc_state)) 3405 return false; 3406 3407 if (!crtc_state->enable) 3408 return false; 3409 3410 return crtc_state->active; 3411 } 3412 3413 static bool modereset_required(struct drm_crtc_state *crtc_state) 3414 { 3415 if (!drm_atomic_crtc_needs_modeset(crtc_state)) 3416 return false; 3417 3418 return !crtc_state->enable || !crtc_state->active; 3419 } 3420 3421 static void amdgpu_dm_encoder_destroy(struct drm_encoder *encoder) 3422 { 3423 drm_encoder_cleanup(encoder); 3424 kfree(encoder); 3425 } 3426 3427 static const struct drm_encoder_funcs amdgpu_dm_encoder_funcs = { 3428 .destroy = amdgpu_dm_encoder_destroy, 3429 }; 3430 3431 3432 static int fill_dc_scaling_info(const struct drm_plane_state *state, 3433 struct dc_scaling_info *scaling_info) 3434 { 3435 int scale_w, scale_h; 3436 3437 memset(scaling_info, 0, sizeof(*scaling_info)); 3438 3439 /* Source is fixed 16.16 but we ignore mantissa for now... */ 3440 scaling_info->src_rect.x = state->src_x >> 16; 3441 scaling_info->src_rect.y = state->src_y >> 16; 3442 3443 scaling_info->src_rect.width = state->src_w >> 16; 3444 if (scaling_info->src_rect.width == 0) 3445 return -EINVAL; 3446 3447 scaling_info->src_rect.height = state->src_h >> 16; 3448 if (scaling_info->src_rect.height == 0) 3449 return -EINVAL; 3450 3451 scaling_info->dst_rect.x = state->crtc_x; 3452 scaling_info->dst_rect.y = state->crtc_y; 3453 3454 if (state->crtc_w == 0) 3455 return -EINVAL; 3456 3457 scaling_info->dst_rect.width = state->crtc_w; 3458 3459 if (state->crtc_h == 0) 3460 return -EINVAL; 3461 3462 scaling_info->dst_rect.height = state->crtc_h; 3463 3464 /* DRM doesn't specify clipping on destination output. */ 3465 scaling_info->clip_rect = scaling_info->dst_rect; 3466 3467 /* TODO: Validate scaling per-format with DC plane caps */ 3468 scale_w = scaling_info->dst_rect.width * 1000 / 3469 scaling_info->src_rect.width; 3470 3471 if (scale_w < 250 || scale_w > 16000) 3472 return -EINVAL; 3473 3474 scale_h = scaling_info->dst_rect.height * 1000 / 3475 scaling_info->src_rect.height; 3476 3477 if (scale_h < 250 || scale_h > 16000) 3478 return -EINVAL; 3479 3480 /* 3481 * The "scaling_quality" can be ignored for now, quality = 0 has DC 3482 * assume reasonable defaults based on the format. 3483 */ 3484 3485 return 0; 3486 } 3487 3488 static int get_fb_info(const struct amdgpu_framebuffer *amdgpu_fb, 3489 uint64_t *tiling_flags, bool *tmz_surface) 3490 { 3491 struct amdgpu_bo *rbo = gem_to_amdgpu_bo(amdgpu_fb->base.obj[0]); 3492 int r = amdgpu_bo_reserve(rbo, false); 3493 3494 if (unlikely(r)) { 3495 /* Don't show error message when returning -ERESTARTSYS */ 3496 if (r != -ERESTARTSYS) 3497 DRM_ERROR("Unable to reserve buffer: %d\n", r); 3498 return r; 3499 } 3500 3501 if (tiling_flags) 3502 amdgpu_bo_get_tiling_flags(rbo, tiling_flags); 3503 3504 if (tmz_surface) 3505 *tmz_surface = amdgpu_bo_encrypted(rbo); 3506 3507 amdgpu_bo_unreserve(rbo); 3508 3509 return r; 3510 } 3511 3512 static inline uint64_t get_dcc_address(uint64_t address, uint64_t tiling_flags) 3513 { 3514 uint32_t offset = AMDGPU_TILING_GET(tiling_flags, DCC_OFFSET_256B); 3515 3516 return offset ? (address + offset * 256) : 0; 3517 } 3518 3519 static int 3520 fill_plane_dcc_attributes(struct amdgpu_device *adev, 3521 const struct amdgpu_framebuffer *afb, 3522 const enum surface_pixel_format format, 3523 const enum dc_rotation_angle rotation, 3524 const struct plane_size *plane_size, 3525 const union dc_tiling_info *tiling_info, 3526 const uint64_t info, 3527 struct dc_plane_dcc_param *dcc, 3528 struct dc_plane_address *address, 3529 bool force_disable_dcc) 3530 { 3531 struct dc *dc = adev->dm.dc; 3532 struct dc_dcc_surface_param input; 3533 struct dc_surface_dcc_cap output; 3534 uint32_t offset = AMDGPU_TILING_GET(info, DCC_OFFSET_256B); 3535 uint32_t i64b = AMDGPU_TILING_GET(info, DCC_INDEPENDENT_64B) != 0; 3536 uint64_t dcc_address; 3537 3538 memset(&input, 0, sizeof(input)); 3539 memset(&output, 0, sizeof(output)); 3540 3541 if (force_disable_dcc) 3542 return 0; 3543 3544 if (!offset) 3545 return 0; 3546 3547 if (format >= SURFACE_PIXEL_FORMAT_VIDEO_BEGIN) 3548 return 0; 3549 3550 if (!dc->cap_funcs.get_dcc_compression_cap) 3551 return -EINVAL; 3552 3553 input.format = format; 3554 input.surface_size.width = plane_size->surface_size.width; 3555 input.surface_size.height = plane_size->surface_size.height; 3556 input.swizzle_mode = tiling_info->gfx9.swizzle; 3557 3558 if (rotation == ROTATION_ANGLE_0 || rotation == ROTATION_ANGLE_180) 3559 input.scan = SCAN_DIRECTION_HORIZONTAL; 3560 else if (rotation == ROTATION_ANGLE_90 || rotation == ROTATION_ANGLE_270) 3561 input.scan = SCAN_DIRECTION_VERTICAL; 3562 3563 if (!dc->cap_funcs.get_dcc_compression_cap(dc, &input, &output)) 3564 return -EINVAL; 3565 3566 if (!output.capable) 3567 return -EINVAL; 3568 3569 if (i64b == 0 && output.grph.rgb.independent_64b_blks != 0) 3570 return -EINVAL; 3571 3572 dcc->enable = 1; 3573 dcc->meta_pitch = 3574 AMDGPU_TILING_GET(info, DCC_PITCH_MAX) + 1; 3575 dcc->independent_64b_blks = i64b; 3576 3577 dcc_address = get_dcc_address(afb->address, info); 3578 address->grph.meta_addr.low_part = lower_32_bits(dcc_address); 3579 address->grph.meta_addr.high_part = upper_32_bits(dcc_address); 3580 3581 return 0; 3582 } 3583 3584 static int 3585 fill_plane_buffer_attributes(struct amdgpu_device *adev, 3586 const struct amdgpu_framebuffer *afb, 3587 const enum surface_pixel_format format, 3588 const enum dc_rotation_angle rotation, 3589 const uint64_t tiling_flags, 3590 union dc_tiling_info *tiling_info, 3591 struct plane_size *plane_size, 3592 struct dc_plane_dcc_param *dcc, 3593 struct dc_plane_address *address, 3594 bool tmz_surface, 3595 bool force_disable_dcc) 3596 { 3597 const struct drm_framebuffer *fb = &afb->base; 3598 int ret; 3599 3600 memset(tiling_info, 0, sizeof(*tiling_info)); 3601 memset(plane_size, 0, sizeof(*plane_size)); 3602 memset(dcc, 0, sizeof(*dcc)); 3603 memset(address, 0, sizeof(*address)); 3604 3605 address->tmz_surface = tmz_surface; 3606 3607 if (format < SURFACE_PIXEL_FORMAT_VIDEO_BEGIN) { 3608 plane_size->surface_size.x = 0; 3609 plane_size->surface_size.y = 0; 3610 plane_size->surface_size.width = fb->width; 3611 plane_size->surface_size.height = fb->height; 3612 plane_size->surface_pitch = 3613 fb->pitches[0] / fb->format->cpp[0]; 3614 3615 address->type = PLN_ADDR_TYPE_GRAPHICS; 3616 address->grph.addr.low_part = lower_32_bits(afb->address); 3617 address->grph.addr.high_part = upper_32_bits(afb->address); 3618 } else if (format < SURFACE_PIXEL_FORMAT_INVALID) { 3619 uint64_t chroma_addr = afb->address + fb->offsets[1]; 3620 3621 plane_size->surface_size.x = 0; 3622 plane_size->surface_size.y = 0; 3623 plane_size->surface_size.width = fb->width; 3624 plane_size->surface_size.height = fb->height; 3625 plane_size->surface_pitch = 3626 fb->pitches[0] / fb->format->cpp[0]; 3627 3628 plane_size->chroma_size.x = 0; 3629 plane_size->chroma_size.y = 0; 3630 /* TODO: set these based on surface format */ 3631 plane_size->chroma_size.width = fb->width / 2; 3632 plane_size->chroma_size.height = fb->height / 2; 3633 3634 plane_size->chroma_pitch = 3635 fb->pitches[1] / fb->format->cpp[1]; 3636 3637 address->type = PLN_ADDR_TYPE_VIDEO_PROGRESSIVE; 3638 address->video_progressive.luma_addr.low_part = 3639 lower_32_bits(afb->address); 3640 address->video_progressive.luma_addr.high_part = 3641 upper_32_bits(afb->address); 3642 address->video_progressive.chroma_addr.low_part = 3643 lower_32_bits(chroma_addr); 3644 address->video_progressive.chroma_addr.high_part = 3645 upper_32_bits(chroma_addr); 3646 } 3647 3648 /* Fill GFX8 params */ 3649 if (AMDGPU_TILING_GET(tiling_flags, ARRAY_MODE) == DC_ARRAY_2D_TILED_THIN1) { 3650 unsigned int bankw, bankh, mtaspect, tile_split, num_banks; 3651 3652 bankw = AMDGPU_TILING_GET(tiling_flags, BANK_WIDTH); 3653 bankh = AMDGPU_TILING_GET(tiling_flags, BANK_HEIGHT); 3654 mtaspect = AMDGPU_TILING_GET(tiling_flags, MACRO_TILE_ASPECT); 3655 tile_split = AMDGPU_TILING_GET(tiling_flags, TILE_SPLIT); 3656 num_banks = AMDGPU_TILING_GET(tiling_flags, NUM_BANKS); 3657 3658 /* XXX fix me for VI */ 3659 tiling_info->gfx8.num_banks = num_banks; 3660 tiling_info->gfx8.array_mode = 3661 DC_ARRAY_2D_TILED_THIN1; 3662 tiling_info->gfx8.tile_split = tile_split; 3663 tiling_info->gfx8.bank_width = bankw; 3664 tiling_info->gfx8.bank_height = bankh; 3665 tiling_info->gfx8.tile_aspect = mtaspect; 3666 tiling_info->gfx8.tile_mode = 3667 DC_ADDR_SURF_MICRO_TILING_DISPLAY; 3668 } else if (AMDGPU_TILING_GET(tiling_flags, ARRAY_MODE) 3669 == DC_ARRAY_1D_TILED_THIN1) { 3670 tiling_info->gfx8.array_mode = DC_ARRAY_1D_TILED_THIN1; 3671 } 3672 3673 tiling_info->gfx8.pipe_config = 3674 AMDGPU_TILING_GET(tiling_flags, PIPE_CONFIG); 3675 3676 if (adev->asic_type == CHIP_VEGA10 || 3677 adev->asic_type == CHIP_VEGA12 || 3678 adev->asic_type == CHIP_VEGA20 || 3679 adev->asic_type == CHIP_NAVI10 || 3680 adev->asic_type == CHIP_NAVI14 || 3681 adev->asic_type == CHIP_NAVI12 || 3682 adev->asic_type == CHIP_RENOIR || 3683 adev->asic_type == CHIP_RAVEN) { 3684 /* Fill GFX9 params */ 3685 tiling_info->gfx9.num_pipes = 3686 adev->gfx.config.gb_addr_config_fields.num_pipes; 3687 tiling_info->gfx9.num_banks = 3688 adev->gfx.config.gb_addr_config_fields.num_banks; 3689 tiling_info->gfx9.pipe_interleave = 3690 adev->gfx.config.gb_addr_config_fields.pipe_interleave_size; 3691 tiling_info->gfx9.num_shader_engines = 3692 adev->gfx.config.gb_addr_config_fields.num_se; 3693 tiling_info->gfx9.max_compressed_frags = 3694 adev->gfx.config.gb_addr_config_fields.max_compress_frags; 3695 tiling_info->gfx9.num_rb_per_se = 3696 adev->gfx.config.gb_addr_config_fields.num_rb_per_se; 3697 tiling_info->gfx9.swizzle = 3698 AMDGPU_TILING_GET(tiling_flags, SWIZZLE_MODE); 3699 tiling_info->gfx9.shaderEnable = 1; 3700 3701 ret = fill_plane_dcc_attributes(adev, afb, format, rotation, 3702 plane_size, tiling_info, 3703 tiling_flags, dcc, address, 3704 force_disable_dcc); 3705 if (ret) 3706 return ret; 3707 } 3708 3709 return 0; 3710 } 3711 3712 static void 3713 fill_blending_from_plane_state(const struct drm_plane_state *plane_state, 3714 bool *per_pixel_alpha, bool *global_alpha, 3715 int *global_alpha_value) 3716 { 3717 *per_pixel_alpha = false; 3718 *global_alpha = false; 3719 *global_alpha_value = 0xff; 3720 3721 if (plane_state->plane->type != DRM_PLANE_TYPE_OVERLAY) 3722 return; 3723 3724 if (plane_state->pixel_blend_mode == DRM_MODE_BLEND_PREMULTI) { 3725 static const uint32_t alpha_formats[] = { 3726 DRM_FORMAT_ARGB8888, 3727 DRM_FORMAT_RGBA8888, 3728 DRM_FORMAT_ABGR8888, 3729 }; 3730 uint32_t format = plane_state->fb->format->format; 3731 unsigned int i; 3732 3733 for (i = 0; i < ARRAY_SIZE(alpha_formats); ++i) { 3734 if (format == alpha_formats[i]) { 3735 *per_pixel_alpha = true; 3736 break; 3737 } 3738 } 3739 } 3740 3741 if (plane_state->alpha < 0xffff) { 3742 *global_alpha = true; 3743 *global_alpha_value = plane_state->alpha >> 8; 3744 } 3745 } 3746 3747 static int 3748 fill_plane_color_attributes(const struct drm_plane_state *plane_state, 3749 const enum surface_pixel_format format, 3750 enum dc_color_space *color_space) 3751 { 3752 bool full_range; 3753 3754 *color_space = COLOR_SPACE_SRGB; 3755 3756 /* DRM color properties only affect non-RGB formats. */ 3757 if (format < SURFACE_PIXEL_FORMAT_VIDEO_BEGIN) 3758 return 0; 3759 3760 full_range = (plane_state->color_range == DRM_COLOR_YCBCR_FULL_RANGE); 3761 3762 switch (plane_state->color_encoding) { 3763 case DRM_COLOR_YCBCR_BT601: 3764 if (full_range) 3765 *color_space = COLOR_SPACE_YCBCR601; 3766 else 3767 *color_space = COLOR_SPACE_YCBCR601_LIMITED; 3768 break; 3769 3770 case DRM_COLOR_YCBCR_BT709: 3771 if (full_range) 3772 *color_space = COLOR_SPACE_YCBCR709; 3773 else 3774 *color_space = COLOR_SPACE_YCBCR709_LIMITED; 3775 break; 3776 3777 case DRM_COLOR_YCBCR_BT2020: 3778 if (full_range) 3779 *color_space = COLOR_SPACE_2020_YCBCR; 3780 else 3781 return -EINVAL; 3782 break; 3783 3784 default: 3785 return -EINVAL; 3786 } 3787 3788 return 0; 3789 } 3790 3791 static int 3792 fill_dc_plane_info_and_addr(struct amdgpu_device *adev, 3793 const struct drm_plane_state *plane_state, 3794 const uint64_t tiling_flags, 3795 struct dc_plane_info *plane_info, 3796 struct dc_plane_address *address, 3797 bool tmz_surface, 3798 bool force_disable_dcc) 3799 { 3800 const struct drm_framebuffer *fb = plane_state->fb; 3801 const struct amdgpu_framebuffer *afb = 3802 to_amdgpu_framebuffer(plane_state->fb); 3803 struct drm_format_name_buf format_name; 3804 int ret; 3805 3806 memset(plane_info, 0, sizeof(*plane_info)); 3807 3808 switch (fb->format->format) { 3809 case DRM_FORMAT_C8: 3810 plane_info->format = 3811 SURFACE_PIXEL_FORMAT_GRPH_PALETA_256_COLORS; 3812 break; 3813 case DRM_FORMAT_RGB565: 3814 plane_info->format = SURFACE_PIXEL_FORMAT_GRPH_RGB565; 3815 break; 3816 case DRM_FORMAT_XRGB8888: 3817 case DRM_FORMAT_ARGB8888: 3818 plane_info->format = SURFACE_PIXEL_FORMAT_GRPH_ARGB8888; 3819 break; 3820 case DRM_FORMAT_XRGB2101010: 3821 case DRM_FORMAT_ARGB2101010: 3822 plane_info->format = SURFACE_PIXEL_FORMAT_GRPH_ARGB2101010; 3823 break; 3824 case DRM_FORMAT_XBGR2101010: 3825 case DRM_FORMAT_ABGR2101010: 3826 plane_info->format = SURFACE_PIXEL_FORMAT_GRPH_ABGR2101010; 3827 break; 3828 case DRM_FORMAT_XBGR8888: 3829 case DRM_FORMAT_ABGR8888: 3830 plane_info->format = SURFACE_PIXEL_FORMAT_GRPH_ABGR8888; 3831 break; 3832 case DRM_FORMAT_NV21: 3833 plane_info->format = SURFACE_PIXEL_FORMAT_VIDEO_420_YCbCr; 3834 break; 3835 case DRM_FORMAT_NV12: 3836 plane_info->format = SURFACE_PIXEL_FORMAT_VIDEO_420_YCrCb; 3837 break; 3838 case DRM_FORMAT_P010: 3839 plane_info->format = SURFACE_PIXEL_FORMAT_VIDEO_420_10bpc_YCrCb; 3840 break; 3841 case DRM_FORMAT_XRGB16161616F: 3842 case DRM_FORMAT_ARGB16161616F: 3843 plane_info->format = SURFACE_PIXEL_FORMAT_GRPH_ARGB16161616F; 3844 break; 3845 case DRM_FORMAT_XBGR16161616F: 3846 case DRM_FORMAT_ABGR16161616F: 3847 plane_info->format = SURFACE_PIXEL_FORMAT_GRPH_ABGR16161616F; 3848 break; 3849 default: 3850 DRM_ERROR( 3851 "Unsupported screen format %s\n", 3852 drm_get_format_name(fb->format->format, &format_name)); 3853 return -EINVAL; 3854 } 3855 3856 switch (plane_state->rotation & DRM_MODE_ROTATE_MASK) { 3857 case DRM_MODE_ROTATE_0: 3858 plane_info->rotation = ROTATION_ANGLE_0; 3859 break; 3860 case DRM_MODE_ROTATE_90: 3861 plane_info->rotation = ROTATION_ANGLE_90; 3862 break; 3863 case DRM_MODE_ROTATE_180: 3864 plane_info->rotation = ROTATION_ANGLE_180; 3865 break; 3866 case DRM_MODE_ROTATE_270: 3867 plane_info->rotation = ROTATION_ANGLE_270; 3868 break; 3869 default: 3870 plane_info->rotation = ROTATION_ANGLE_0; 3871 break; 3872 } 3873 3874 plane_info->visible = true; 3875 plane_info->stereo_format = PLANE_STEREO_FORMAT_NONE; 3876 3877 plane_info->layer_index = 0; 3878 3879 ret = fill_plane_color_attributes(plane_state, plane_info->format, 3880 &plane_info->color_space); 3881 if (ret) 3882 return ret; 3883 3884 ret = fill_plane_buffer_attributes(adev, afb, plane_info->format, 3885 plane_info->rotation, tiling_flags, 3886 &plane_info->tiling_info, 3887 &plane_info->plane_size, 3888 &plane_info->dcc, address, tmz_surface, 3889 force_disable_dcc); 3890 if (ret) 3891 return ret; 3892 3893 fill_blending_from_plane_state( 3894 plane_state, &plane_info->per_pixel_alpha, 3895 &plane_info->global_alpha, &plane_info->global_alpha_value); 3896 3897 return 0; 3898 } 3899 3900 static int fill_dc_plane_attributes(struct amdgpu_device *adev, 3901 struct dc_plane_state *dc_plane_state, 3902 struct drm_plane_state *plane_state, 3903 struct drm_crtc_state *crtc_state) 3904 { 3905 struct dm_crtc_state *dm_crtc_state = to_dm_crtc_state(crtc_state); 3906 const struct amdgpu_framebuffer *amdgpu_fb = 3907 to_amdgpu_framebuffer(plane_state->fb); 3908 struct dc_scaling_info scaling_info; 3909 struct dc_plane_info plane_info; 3910 uint64_t tiling_flags; 3911 int ret; 3912 bool tmz_surface = false; 3913 bool force_disable_dcc = false; 3914 3915 ret = fill_dc_scaling_info(plane_state, &scaling_info); 3916 if (ret) 3917 return ret; 3918 3919 dc_plane_state->src_rect = scaling_info.src_rect; 3920 dc_plane_state->dst_rect = scaling_info.dst_rect; 3921 dc_plane_state->clip_rect = scaling_info.clip_rect; 3922 dc_plane_state->scaling_quality = scaling_info.scaling_quality; 3923 3924 ret = get_fb_info(amdgpu_fb, &tiling_flags, &tmz_surface); 3925 if (ret) 3926 return ret; 3927 3928 force_disable_dcc = adev->asic_type == CHIP_RAVEN && adev->in_suspend; 3929 ret = fill_dc_plane_info_and_addr(adev, plane_state, tiling_flags, 3930 &plane_info, 3931 &dc_plane_state->address, 3932 tmz_surface, 3933 force_disable_dcc); 3934 if (ret) 3935 return ret; 3936 3937 dc_plane_state->format = plane_info.format; 3938 dc_plane_state->color_space = plane_info.color_space; 3939 dc_plane_state->format = plane_info.format; 3940 dc_plane_state->plane_size = plane_info.plane_size; 3941 dc_plane_state->rotation = plane_info.rotation; 3942 dc_plane_state->horizontal_mirror = plane_info.horizontal_mirror; 3943 dc_plane_state->stereo_format = plane_info.stereo_format; 3944 dc_plane_state->tiling_info = plane_info.tiling_info; 3945 dc_plane_state->visible = plane_info.visible; 3946 dc_plane_state->per_pixel_alpha = plane_info.per_pixel_alpha; 3947 dc_plane_state->global_alpha = plane_info.global_alpha; 3948 dc_plane_state->global_alpha_value = plane_info.global_alpha_value; 3949 dc_plane_state->dcc = plane_info.dcc; 3950 dc_plane_state->layer_index = plane_info.layer_index; // Always returns 0 3951 3952 /* 3953 * Always set input transfer function, since plane state is refreshed 3954 * every time. 3955 */ 3956 ret = amdgpu_dm_update_plane_color_mgmt(dm_crtc_state, dc_plane_state); 3957 if (ret) 3958 return ret; 3959 3960 return 0; 3961 } 3962 3963 static void update_stream_scaling_settings(const struct drm_display_mode *mode, 3964 const struct dm_connector_state *dm_state, 3965 struct dc_stream_state *stream) 3966 { 3967 enum amdgpu_rmx_type rmx_type; 3968 3969 struct rect src = { 0 }; /* viewport in composition space*/ 3970 struct rect dst = { 0 }; /* stream addressable area */ 3971 3972 /* no mode. nothing to be done */ 3973 if (!mode) 3974 return; 3975 3976 /* Full screen scaling by default */ 3977 src.width = mode->hdisplay; 3978 src.height = mode->vdisplay; 3979 dst.width = stream->timing.h_addressable; 3980 dst.height = stream->timing.v_addressable; 3981 3982 if (dm_state) { 3983 rmx_type = dm_state->scaling; 3984 if (rmx_type == RMX_ASPECT || rmx_type == RMX_OFF) { 3985 if (src.width * dst.height < 3986 src.height * dst.width) { 3987 /* height needs less upscaling/more downscaling */ 3988 dst.width = src.width * 3989 dst.height / src.height; 3990 } else { 3991 /* width needs less upscaling/more downscaling */ 3992 dst.height = src.height * 3993 dst.width / src.width; 3994 } 3995 } else if (rmx_type == RMX_CENTER) { 3996 dst = src; 3997 } 3998 3999 dst.x = (stream->timing.h_addressable - dst.width) / 2; 4000 dst.y = (stream->timing.v_addressable - dst.height) / 2; 4001 4002 if (dm_state->underscan_enable) { 4003 dst.x += dm_state->underscan_hborder / 2; 4004 dst.y += dm_state->underscan_vborder / 2; 4005 dst.width -= dm_state->underscan_hborder; 4006 dst.height -= dm_state->underscan_vborder; 4007 } 4008 } 4009 4010 stream->src = src; 4011 stream->dst = dst; 4012 4013 DRM_DEBUG_DRIVER("Destination Rectangle x:%d y:%d width:%d height:%d\n", 4014 dst.x, dst.y, dst.width, dst.height); 4015 4016 } 4017 4018 static enum dc_color_depth 4019 convert_color_depth_from_display_info(const struct drm_connector *connector, 4020 bool is_y420, int requested_bpc) 4021 { 4022 uint8_t bpc; 4023 4024 if (is_y420) { 4025 bpc = 8; 4026 4027 /* Cap display bpc based on HDMI 2.0 HF-VSDB */ 4028 if (connector->display_info.hdmi.y420_dc_modes & DRM_EDID_YCBCR420_DC_48) 4029 bpc = 16; 4030 else if (connector->display_info.hdmi.y420_dc_modes & DRM_EDID_YCBCR420_DC_36) 4031 bpc = 12; 4032 else if (connector->display_info.hdmi.y420_dc_modes & DRM_EDID_YCBCR420_DC_30) 4033 bpc = 10; 4034 } else { 4035 bpc = (uint8_t)connector->display_info.bpc; 4036 /* Assume 8 bpc by default if no bpc is specified. */ 4037 bpc = bpc ? bpc : 8; 4038 } 4039 4040 if (requested_bpc > 0) { 4041 /* 4042 * Cap display bpc based on the user requested value. 4043 * 4044 * The value for state->max_bpc may not correctly updated 4045 * depending on when the connector gets added to the state 4046 * or if this was called outside of atomic check, so it 4047 * can't be used directly. 4048 */ 4049 bpc = min_t(u8, bpc, requested_bpc); 4050 4051 /* Round down to the nearest even number. */ 4052 bpc = bpc - (bpc & 1); 4053 } 4054 4055 switch (bpc) { 4056 case 0: 4057 /* 4058 * Temporary Work around, DRM doesn't parse color depth for 4059 * EDID revision before 1.4 4060 * TODO: Fix edid parsing 4061 */ 4062 return COLOR_DEPTH_888; 4063 case 6: 4064 return COLOR_DEPTH_666; 4065 case 8: 4066 return COLOR_DEPTH_888; 4067 case 10: 4068 return COLOR_DEPTH_101010; 4069 case 12: 4070 return COLOR_DEPTH_121212; 4071 case 14: 4072 return COLOR_DEPTH_141414; 4073 case 16: 4074 return COLOR_DEPTH_161616; 4075 default: 4076 return COLOR_DEPTH_UNDEFINED; 4077 } 4078 } 4079 4080 static enum dc_aspect_ratio 4081 get_aspect_ratio(const struct drm_display_mode *mode_in) 4082 { 4083 /* 1-1 mapping, since both enums follow the HDMI spec. */ 4084 return (enum dc_aspect_ratio) mode_in->picture_aspect_ratio; 4085 } 4086 4087 static enum dc_color_space 4088 get_output_color_space(const struct dc_crtc_timing *dc_crtc_timing) 4089 { 4090 enum dc_color_space color_space = COLOR_SPACE_SRGB; 4091 4092 switch (dc_crtc_timing->pixel_encoding) { 4093 case PIXEL_ENCODING_YCBCR422: 4094 case PIXEL_ENCODING_YCBCR444: 4095 case PIXEL_ENCODING_YCBCR420: 4096 { 4097 /* 4098 * 27030khz is the separation point between HDTV and SDTV 4099 * according to HDMI spec, we use YCbCr709 and YCbCr601 4100 * respectively 4101 */ 4102 if (dc_crtc_timing->pix_clk_100hz > 270300) { 4103 if (dc_crtc_timing->flags.Y_ONLY) 4104 color_space = 4105 COLOR_SPACE_YCBCR709_LIMITED; 4106 else 4107 color_space = COLOR_SPACE_YCBCR709; 4108 } else { 4109 if (dc_crtc_timing->flags.Y_ONLY) 4110 color_space = 4111 COLOR_SPACE_YCBCR601_LIMITED; 4112 else 4113 color_space = COLOR_SPACE_YCBCR601; 4114 } 4115 4116 } 4117 break; 4118 case PIXEL_ENCODING_RGB: 4119 color_space = COLOR_SPACE_SRGB; 4120 break; 4121 4122 default: 4123 WARN_ON(1); 4124 break; 4125 } 4126 4127 return color_space; 4128 } 4129 4130 static bool adjust_colour_depth_from_display_info( 4131 struct dc_crtc_timing *timing_out, 4132 const struct drm_display_info *info) 4133 { 4134 enum dc_color_depth depth = timing_out->display_color_depth; 4135 int normalized_clk; 4136 do { 4137 normalized_clk = timing_out->pix_clk_100hz / 10; 4138 /* YCbCr 4:2:0 requires additional adjustment of 1/2 */ 4139 if (timing_out->pixel_encoding == PIXEL_ENCODING_YCBCR420) 4140 normalized_clk /= 2; 4141 /* Adjusting pix clock following on HDMI spec based on colour depth */ 4142 switch (depth) { 4143 case COLOR_DEPTH_888: 4144 break; 4145 case COLOR_DEPTH_101010: 4146 normalized_clk = (normalized_clk * 30) / 24; 4147 break; 4148 case COLOR_DEPTH_121212: 4149 normalized_clk = (normalized_clk * 36) / 24; 4150 break; 4151 case COLOR_DEPTH_161616: 4152 normalized_clk = (normalized_clk * 48) / 24; 4153 break; 4154 default: 4155 /* The above depths are the only ones valid for HDMI. */ 4156 return false; 4157 } 4158 if (normalized_clk <= info->max_tmds_clock) { 4159 timing_out->display_color_depth = depth; 4160 return true; 4161 } 4162 } while (--depth > COLOR_DEPTH_666); 4163 return false; 4164 } 4165 4166 static void fill_stream_properties_from_drm_display_mode( 4167 struct dc_stream_state *stream, 4168 const struct drm_display_mode *mode_in, 4169 const struct drm_connector *connector, 4170 const struct drm_connector_state *connector_state, 4171 const struct dc_stream_state *old_stream, 4172 int requested_bpc) 4173 { 4174 struct dc_crtc_timing *timing_out = &stream->timing; 4175 const struct drm_display_info *info = &connector->display_info; 4176 struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector); 4177 struct hdmi_vendor_infoframe hv_frame; 4178 struct hdmi_avi_infoframe avi_frame; 4179 4180 memset(&hv_frame, 0, sizeof(hv_frame)); 4181 memset(&avi_frame, 0, sizeof(avi_frame)); 4182 4183 timing_out->h_border_left = 0; 4184 timing_out->h_border_right = 0; 4185 timing_out->v_border_top = 0; 4186 timing_out->v_border_bottom = 0; 4187 /* TODO: un-hardcode */ 4188 if (drm_mode_is_420_only(info, mode_in) 4189 && stream->signal == SIGNAL_TYPE_HDMI_TYPE_A) 4190 timing_out->pixel_encoding = PIXEL_ENCODING_YCBCR420; 4191 else if (drm_mode_is_420_also(info, mode_in) 4192 && aconnector->force_yuv420_output) 4193 timing_out->pixel_encoding = PIXEL_ENCODING_YCBCR420; 4194 else if ((connector->display_info.color_formats & DRM_COLOR_FORMAT_YCRCB444) 4195 && stream->signal == SIGNAL_TYPE_HDMI_TYPE_A) 4196 timing_out->pixel_encoding = PIXEL_ENCODING_YCBCR444; 4197 else 4198 timing_out->pixel_encoding = PIXEL_ENCODING_RGB; 4199 4200 timing_out->timing_3d_format = TIMING_3D_FORMAT_NONE; 4201 timing_out->display_color_depth = convert_color_depth_from_display_info( 4202 connector, 4203 (timing_out->pixel_encoding == PIXEL_ENCODING_YCBCR420), 4204 requested_bpc); 4205 timing_out->scan_type = SCANNING_TYPE_NODATA; 4206 timing_out->hdmi_vic = 0; 4207 4208 if(old_stream) { 4209 timing_out->vic = old_stream->timing.vic; 4210 timing_out->flags.HSYNC_POSITIVE_POLARITY = old_stream->timing.flags.HSYNC_POSITIVE_POLARITY; 4211 timing_out->flags.VSYNC_POSITIVE_POLARITY = old_stream->timing.flags.VSYNC_POSITIVE_POLARITY; 4212 } else { 4213 timing_out->vic = drm_match_cea_mode(mode_in); 4214 if (mode_in->flags & DRM_MODE_FLAG_PHSYNC) 4215 timing_out->flags.HSYNC_POSITIVE_POLARITY = 1; 4216 if (mode_in->flags & DRM_MODE_FLAG_PVSYNC) 4217 timing_out->flags.VSYNC_POSITIVE_POLARITY = 1; 4218 } 4219 4220 if (stream->signal == SIGNAL_TYPE_HDMI_TYPE_A) { 4221 drm_hdmi_avi_infoframe_from_display_mode(&avi_frame, (struct drm_connector *)connector, mode_in); 4222 timing_out->vic = avi_frame.video_code; 4223 drm_hdmi_vendor_infoframe_from_display_mode(&hv_frame, (struct drm_connector *)connector, mode_in); 4224 timing_out->hdmi_vic = hv_frame.vic; 4225 } 4226 4227 timing_out->h_addressable = mode_in->crtc_hdisplay; 4228 timing_out->h_total = mode_in->crtc_htotal; 4229 timing_out->h_sync_width = 4230 mode_in->crtc_hsync_end - mode_in->crtc_hsync_start; 4231 timing_out->h_front_porch = 4232 mode_in->crtc_hsync_start - mode_in->crtc_hdisplay; 4233 timing_out->v_total = mode_in->crtc_vtotal; 4234 timing_out->v_addressable = mode_in->crtc_vdisplay; 4235 timing_out->v_front_porch = 4236 mode_in->crtc_vsync_start - mode_in->crtc_vdisplay; 4237 timing_out->v_sync_width = 4238 mode_in->crtc_vsync_end - mode_in->crtc_vsync_start; 4239 timing_out->pix_clk_100hz = mode_in->crtc_clock * 10; 4240 timing_out->aspect_ratio = get_aspect_ratio(mode_in); 4241 4242 stream->output_color_space = get_output_color_space(timing_out); 4243 4244 stream->out_transfer_func->type = TF_TYPE_PREDEFINED; 4245 stream->out_transfer_func->tf = TRANSFER_FUNCTION_SRGB; 4246 if (stream->signal == SIGNAL_TYPE_HDMI_TYPE_A) { 4247 if (!adjust_colour_depth_from_display_info(timing_out, info) && 4248 drm_mode_is_420_also(info, mode_in) && 4249 timing_out->pixel_encoding != PIXEL_ENCODING_YCBCR420) { 4250 timing_out->pixel_encoding = PIXEL_ENCODING_YCBCR420; 4251 adjust_colour_depth_from_display_info(timing_out, info); 4252 } 4253 } 4254 } 4255 4256 static void fill_audio_info(struct audio_info *audio_info, 4257 const struct drm_connector *drm_connector, 4258 const struct dc_sink *dc_sink) 4259 { 4260 int i = 0; 4261 int cea_revision = 0; 4262 const struct dc_edid_caps *edid_caps = &dc_sink->edid_caps; 4263 4264 audio_info->manufacture_id = edid_caps->manufacturer_id; 4265 audio_info->product_id = edid_caps->product_id; 4266 4267 cea_revision = drm_connector->display_info.cea_rev; 4268 4269 strscpy(audio_info->display_name, 4270 edid_caps->display_name, 4271 AUDIO_INFO_DISPLAY_NAME_SIZE_IN_CHARS); 4272 4273 if (cea_revision >= 3) { 4274 audio_info->mode_count = edid_caps->audio_mode_count; 4275 4276 for (i = 0; i < audio_info->mode_count; ++i) { 4277 audio_info->modes[i].format_code = 4278 (enum audio_format_code) 4279 (edid_caps->audio_modes[i].format_code); 4280 audio_info->modes[i].channel_count = 4281 edid_caps->audio_modes[i].channel_count; 4282 audio_info->modes[i].sample_rates.all = 4283 edid_caps->audio_modes[i].sample_rate; 4284 audio_info->modes[i].sample_size = 4285 edid_caps->audio_modes[i].sample_size; 4286 } 4287 } 4288 4289 audio_info->flags.all = edid_caps->speaker_flags; 4290 4291 /* TODO: We only check for the progressive mode, check for interlace mode too */ 4292 if (drm_connector->latency_present[0]) { 4293 audio_info->video_latency = drm_connector->video_latency[0]; 4294 audio_info->audio_latency = drm_connector->audio_latency[0]; 4295 } 4296 4297 /* TODO: For DP, video and audio latency should be calculated from DPCD caps */ 4298 4299 } 4300 4301 static void 4302 copy_crtc_timing_for_drm_display_mode(const struct drm_display_mode *src_mode, 4303 struct drm_display_mode *dst_mode) 4304 { 4305 dst_mode->crtc_hdisplay = src_mode->crtc_hdisplay; 4306 dst_mode->crtc_vdisplay = src_mode->crtc_vdisplay; 4307 dst_mode->crtc_clock = src_mode->crtc_clock; 4308 dst_mode->crtc_hblank_start = src_mode->crtc_hblank_start; 4309 dst_mode->crtc_hblank_end = src_mode->crtc_hblank_end; 4310 dst_mode->crtc_hsync_start = src_mode->crtc_hsync_start; 4311 dst_mode->crtc_hsync_end = src_mode->crtc_hsync_end; 4312 dst_mode->crtc_htotal = src_mode->crtc_htotal; 4313 dst_mode->crtc_hskew = src_mode->crtc_hskew; 4314 dst_mode->crtc_vblank_start = src_mode->crtc_vblank_start; 4315 dst_mode->crtc_vblank_end = src_mode->crtc_vblank_end; 4316 dst_mode->crtc_vsync_start = src_mode->crtc_vsync_start; 4317 dst_mode->crtc_vsync_end = src_mode->crtc_vsync_end; 4318 dst_mode->crtc_vtotal = src_mode->crtc_vtotal; 4319 } 4320 4321 static void 4322 decide_crtc_timing_for_drm_display_mode(struct drm_display_mode *drm_mode, 4323 const struct drm_display_mode *native_mode, 4324 bool scale_enabled) 4325 { 4326 if (scale_enabled) { 4327 copy_crtc_timing_for_drm_display_mode(native_mode, drm_mode); 4328 } else if (native_mode->clock == drm_mode->clock && 4329 native_mode->htotal == drm_mode->htotal && 4330 native_mode->vtotal == drm_mode->vtotal) { 4331 copy_crtc_timing_for_drm_display_mode(native_mode, drm_mode); 4332 } else { 4333 /* no scaling nor amdgpu inserted, no need to patch */ 4334 } 4335 } 4336 4337 static struct dc_sink * 4338 create_fake_sink(struct amdgpu_dm_connector *aconnector) 4339 { 4340 struct dc_sink_init_data sink_init_data = { 0 }; 4341 struct dc_sink *sink = NULL; 4342 sink_init_data.link = aconnector->dc_link; 4343 sink_init_data.sink_signal = aconnector->dc_link->connector_signal; 4344 4345 sink = dc_sink_create(&sink_init_data); 4346 if (!sink) { 4347 DRM_ERROR("Failed to create sink!\n"); 4348 return NULL; 4349 } 4350 sink->sink_signal = SIGNAL_TYPE_VIRTUAL; 4351 4352 return sink; 4353 } 4354 4355 static void set_multisync_trigger_params( 4356 struct dc_stream_state *stream) 4357 { 4358 if (stream->triggered_crtc_reset.enabled) { 4359 stream->triggered_crtc_reset.event = CRTC_EVENT_VSYNC_RISING; 4360 stream->triggered_crtc_reset.delay = TRIGGER_DELAY_NEXT_LINE; 4361 } 4362 } 4363 4364 static void set_master_stream(struct dc_stream_state *stream_set[], 4365 int stream_count) 4366 { 4367 int j, highest_rfr = 0, master_stream = 0; 4368 4369 for (j = 0; j < stream_count; j++) { 4370 if (stream_set[j] && stream_set[j]->triggered_crtc_reset.enabled) { 4371 int refresh_rate = 0; 4372 4373 refresh_rate = (stream_set[j]->timing.pix_clk_100hz*100)/ 4374 (stream_set[j]->timing.h_total*stream_set[j]->timing.v_total); 4375 if (refresh_rate > highest_rfr) { 4376 highest_rfr = refresh_rate; 4377 master_stream = j; 4378 } 4379 } 4380 } 4381 for (j = 0; j < stream_count; j++) { 4382 if (stream_set[j]) 4383 stream_set[j]->triggered_crtc_reset.event_source = stream_set[master_stream]; 4384 } 4385 } 4386 4387 static void dm_enable_per_frame_crtc_master_sync(struct dc_state *context) 4388 { 4389 int i = 0; 4390 4391 if (context->stream_count < 2) 4392 return; 4393 for (i = 0; i < context->stream_count ; i++) { 4394 if (!context->streams[i]) 4395 continue; 4396 /* 4397 * TODO: add a function to read AMD VSDB bits and set 4398 * crtc_sync_master.multi_sync_enabled flag 4399 * For now it's set to false 4400 */ 4401 set_multisync_trigger_params(context->streams[i]); 4402 } 4403 set_master_stream(context->streams, context->stream_count); 4404 } 4405 4406 static struct dc_stream_state * 4407 create_stream_for_sink(struct amdgpu_dm_connector *aconnector, 4408 const struct drm_display_mode *drm_mode, 4409 const struct dm_connector_state *dm_state, 4410 const struct dc_stream_state *old_stream, 4411 int requested_bpc) 4412 { 4413 struct drm_display_mode *preferred_mode = NULL; 4414 struct drm_connector *drm_connector; 4415 const struct drm_connector_state *con_state = 4416 dm_state ? &dm_state->base : NULL; 4417 struct dc_stream_state *stream = NULL; 4418 struct drm_display_mode mode = *drm_mode; 4419 bool native_mode_found = false; 4420 bool scale = dm_state ? (dm_state->scaling != RMX_OFF) : false; 4421 int mode_refresh; 4422 int preferred_refresh = 0; 4423 #if defined(CONFIG_DRM_AMD_DC_DCN) 4424 struct dsc_dec_dpcd_caps dsc_caps; 4425 #endif 4426 uint32_t link_bandwidth_kbps; 4427 4428 struct dc_sink *sink = NULL; 4429 if (aconnector == NULL) { 4430 DRM_ERROR("aconnector is NULL!\n"); 4431 return stream; 4432 } 4433 4434 drm_connector = &aconnector->base; 4435 4436 if (!aconnector->dc_sink) { 4437 sink = create_fake_sink(aconnector); 4438 if (!sink) 4439 return stream; 4440 } else { 4441 sink = aconnector->dc_sink; 4442 dc_sink_retain(sink); 4443 } 4444 4445 stream = dc_create_stream_for_sink(sink); 4446 4447 if (stream == NULL) { 4448 DRM_ERROR("Failed to create stream for sink!\n"); 4449 goto finish; 4450 } 4451 4452 stream->dm_stream_context = aconnector; 4453 4454 stream->timing.flags.LTE_340MCSC_SCRAMBLE = 4455 drm_connector->display_info.hdmi.scdc.scrambling.low_rates; 4456 4457 list_for_each_entry(preferred_mode, &aconnector->base.modes, head) { 4458 /* Search for preferred mode */ 4459 if (preferred_mode->type & DRM_MODE_TYPE_PREFERRED) { 4460 native_mode_found = true; 4461 break; 4462 } 4463 } 4464 if (!native_mode_found) 4465 preferred_mode = list_first_entry_or_null( 4466 &aconnector->base.modes, 4467 struct drm_display_mode, 4468 head); 4469 4470 mode_refresh = drm_mode_vrefresh(&mode); 4471 4472 if (preferred_mode == NULL) { 4473 /* 4474 * This may not be an error, the use case is when we have no 4475 * usermode calls to reset and set mode upon hotplug. In this 4476 * case, we call set mode ourselves to restore the previous mode 4477 * and the modelist may not be filled in in time. 4478 */ 4479 DRM_DEBUG_DRIVER("No preferred mode found\n"); 4480 } else { 4481 decide_crtc_timing_for_drm_display_mode( 4482 &mode, preferred_mode, 4483 dm_state ? (dm_state->scaling != RMX_OFF) : false); 4484 preferred_refresh = drm_mode_vrefresh(preferred_mode); 4485 } 4486 4487 if (!dm_state) 4488 drm_mode_set_crtcinfo(&mode, 0); 4489 4490 /* 4491 * If scaling is enabled and refresh rate didn't change 4492 * we copy the vic and polarities of the old timings 4493 */ 4494 if (!scale || mode_refresh != preferred_refresh) 4495 fill_stream_properties_from_drm_display_mode(stream, 4496 &mode, &aconnector->base, con_state, NULL, requested_bpc); 4497 else 4498 fill_stream_properties_from_drm_display_mode(stream, 4499 &mode, &aconnector->base, con_state, old_stream, requested_bpc); 4500 4501 stream->timing.flags.DSC = 0; 4502 4503 if (aconnector->dc_link && sink->sink_signal == SIGNAL_TYPE_DISPLAY_PORT) { 4504 #if defined(CONFIG_DRM_AMD_DC_DCN) 4505 dc_dsc_parse_dsc_dpcd(aconnector->dc_link->ctx->dc, 4506 aconnector->dc_link->dpcd_caps.dsc_caps.dsc_basic_caps.raw, 4507 aconnector->dc_link->dpcd_caps.dsc_caps.dsc_ext_caps.raw, 4508 &dsc_caps); 4509 #endif 4510 link_bandwidth_kbps = dc_link_bandwidth_kbps(aconnector->dc_link, 4511 dc_link_get_link_cap(aconnector->dc_link)); 4512 4513 #if defined(CONFIG_DRM_AMD_DC_DCN) 4514 if (dsc_caps.is_dsc_supported) 4515 if (dc_dsc_compute_config(aconnector->dc_link->ctx->dc->res_pool->dscs[0], 4516 &dsc_caps, 4517 aconnector->dc_link->ctx->dc->debug.dsc_min_slice_height_override, 4518 link_bandwidth_kbps, 4519 &stream->timing, 4520 &stream->timing.dsc_cfg)) 4521 stream->timing.flags.DSC = 1; 4522 #endif 4523 } 4524 4525 update_stream_scaling_settings(&mode, dm_state, stream); 4526 4527 fill_audio_info( 4528 &stream->audio_info, 4529 drm_connector, 4530 sink); 4531 4532 update_stream_signal(stream, sink); 4533 4534 if (stream->signal == SIGNAL_TYPE_HDMI_TYPE_A) 4535 mod_build_hf_vsif_infopacket(stream, &stream->vsp_infopacket, false, false); 4536 if (stream->link->psr_settings.psr_feature_enabled) { 4537 struct dc *core_dc = stream->link->ctx->dc; 4538 4539 if (dc_is_dmcu_initialized(core_dc)) { 4540 // 4541 // should decide stream support vsc sdp colorimetry capability 4542 // before building vsc info packet 4543 // 4544 stream->use_vsc_sdp_for_colorimetry = false; 4545 if (aconnector->dc_sink->sink_signal == SIGNAL_TYPE_DISPLAY_PORT_MST) { 4546 stream->use_vsc_sdp_for_colorimetry = 4547 aconnector->dc_sink->is_vsc_sdp_colorimetry_supported; 4548 } else { 4549 if (stream->link->dpcd_caps.dpcd_rev.raw >= 0x14 && 4550 stream->link->dpcd_caps.dprx_feature.bits.VSC_SDP_COLORIMETRY_SUPPORTED) { 4551 stream->use_vsc_sdp_for_colorimetry = true; 4552 } 4553 } 4554 mod_build_vsc_infopacket(stream, &stream->vsc_infopacket); 4555 } 4556 } 4557 finish: 4558 dc_sink_release(sink); 4559 4560 return stream; 4561 } 4562 4563 static void amdgpu_dm_crtc_destroy(struct drm_crtc *crtc) 4564 { 4565 drm_crtc_cleanup(crtc); 4566 kfree(crtc); 4567 } 4568 4569 static void dm_crtc_destroy_state(struct drm_crtc *crtc, 4570 struct drm_crtc_state *state) 4571 { 4572 struct dm_crtc_state *cur = to_dm_crtc_state(state); 4573 4574 /* TODO Destroy dc_stream objects are stream object is flattened */ 4575 if (cur->stream) 4576 dc_stream_release(cur->stream); 4577 4578 4579 __drm_atomic_helper_crtc_destroy_state(state); 4580 4581 4582 kfree(state); 4583 } 4584 4585 static void dm_crtc_reset_state(struct drm_crtc *crtc) 4586 { 4587 struct dm_crtc_state *state; 4588 4589 if (crtc->state) 4590 dm_crtc_destroy_state(crtc, crtc->state); 4591 4592 state = kzalloc(sizeof(*state), GFP_KERNEL); 4593 if (WARN_ON(!state)) 4594 return; 4595 4596 __drm_atomic_helper_crtc_reset(crtc, &state->base); 4597 } 4598 4599 static struct drm_crtc_state * 4600 dm_crtc_duplicate_state(struct drm_crtc *crtc) 4601 { 4602 struct dm_crtc_state *state, *cur; 4603 4604 cur = to_dm_crtc_state(crtc->state); 4605 4606 if (WARN_ON(!crtc->state)) 4607 return NULL; 4608 4609 state = kzalloc(sizeof(*state), GFP_KERNEL); 4610 if (!state) 4611 return NULL; 4612 4613 __drm_atomic_helper_crtc_duplicate_state(crtc, &state->base); 4614 4615 if (cur->stream) { 4616 state->stream = cur->stream; 4617 dc_stream_retain(state->stream); 4618 } 4619 4620 state->active_planes = cur->active_planes; 4621 state->interrupts_enabled = cur->interrupts_enabled; 4622 state->vrr_params = cur->vrr_params; 4623 state->vrr_infopacket = cur->vrr_infopacket; 4624 state->abm_level = cur->abm_level; 4625 state->vrr_supported = cur->vrr_supported; 4626 state->freesync_config = cur->freesync_config; 4627 state->crc_src = cur->crc_src; 4628 state->cm_has_degamma = cur->cm_has_degamma; 4629 state->cm_is_degamma_srgb = cur->cm_is_degamma_srgb; 4630 4631 /* TODO Duplicate dc_stream after objects are stream object is flattened */ 4632 4633 return &state->base; 4634 } 4635 4636 static inline int dm_set_vupdate_irq(struct drm_crtc *crtc, bool enable) 4637 { 4638 enum dc_irq_source irq_source; 4639 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc); 4640 struct amdgpu_device *adev = crtc->dev->dev_private; 4641 int rc; 4642 4643 irq_source = IRQ_TYPE_VUPDATE + acrtc->otg_inst; 4644 4645 rc = dc_interrupt_set(adev->dm.dc, irq_source, enable) ? 0 : -EBUSY; 4646 4647 DRM_DEBUG_DRIVER("crtc %d - vupdate irq %sabling: r=%d\n", 4648 acrtc->crtc_id, enable ? "en" : "dis", rc); 4649 return rc; 4650 } 4651 4652 static inline int dm_set_vblank(struct drm_crtc *crtc, bool enable) 4653 { 4654 enum dc_irq_source irq_source; 4655 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc); 4656 struct amdgpu_device *adev = crtc->dev->dev_private; 4657 struct dm_crtc_state *acrtc_state = to_dm_crtc_state(crtc->state); 4658 int rc = 0; 4659 4660 if (enable) { 4661 /* vblank irq on -> Only need vupdate irq in vrr mode */ 4662 if (amdgpu_dm_vrr_active(acrtc_state)) 4663 rc = dm_set_vupdate_irq(crtc, true); 4664 } else { 4665 /* vblank irq off -> vupdate irq off */ 4666 rc = dm_set_vupdate_irq(crtc, false); 4667 } 4668 4669 if (rc) 4670 return rc; 4671 4672 irq_source = IRQ_TYPE_VBLANK + acrtc->otg_inst; 4673 return dc_interrupt_set(adev->dm.dc, irq_source, enable) ? 0 : -EBUSY; 4674 } 4675 4676 static int dm_enable_vblank(struct drm_crtc *crtc) 4677 { 4678 return dm_set_vblank(crtc, true); 4679 } 4680 4681 static void dm_disable_vblank(struct drm_crtc *crtc) 4682 { 4683 dm_set_vblank(crtc, false); 4684 } 4685 4686 /* Implemented only the options currently availible for the driver */ 4687 static const struct drm_crtc_funcs amdgpu_dm_crtc_funcs = { 4688 .reset = dm_crtc_reset_state, 4689 .destroy = amdgpu_dm_crtc_destroy, 4690 .gamma_set = drm_atomic_helper_legacy_gamma_set, 4691 .set_config = drm_atomic_helper_set_config, 4692 .page_flip = drm_atomic_helper_page_flip, 4693 .atomic_duplicate_state = dm_crtc_duplicate_state, 4694 .atomic_destroy_state = dm_crtc_destroy_state, 4695 .set_crc_source = amdgpu_dm_crtc_set_crc_source, 4696 .verify_crc_source = amdgpu_dm_crtc_verify_crc_source, 4697 .get_crc_sources = amdgpu_dm_crtc_get_crc_sources, 4698 .get_vblank_counter = amdgpu_get_vblank_counter_kms, 4699 .enable_vblank = dm_enable_vblank, 4700 .disable_vblank = dm_disable_vblank, 4701 .get_vblank_timestamp = drm_crtc_vblank_helper_get_vblank_timestamp, 4702 }; 4703 4704 static enum drm_connector_status 4705 amdgpu_dm_connector_detect(struct drm_connector *connector, bool force) 4706 { 4707 bool connected; 4708 struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector); 4709 4710 /* 4711 * Notes: 4712 * 1. This interface is NOT called in context of HPD irq. 4713 * 2. This interface *is called* in context of user-mode ioctl. Which 4714 * makes it a bad place for *any* MST-related activity. 4715 */ 4716 4717 if (aconnector->base.force == DRM_FORCE_UNSPECIFIED && 4718 !aconnector->fake_enable) 4719 connected = (aconnector->dc_sink != NULL); 4720 else 4721 connected = (aconnector->base.force == DRM_FORCE_ON); 4722 4723 return (connected ? connector_status_connected : 4724 connector_status_disconnected); 4725 } 4726 4727 int amdgpu_dm_connector_atomic_set_property(struct drm_connector *connector, 4728 struct drm_connector_state *connector_state, 4729 struct drm_property *property, 4730 uint64_t val) 4731 { 4732 struct drm_device *dev = connector->dev; 4733 struct amdgpu_device *adev = dev->dev_private; 4734 struct dm_connector_state *dm_old_state = 4735 to_dm_connector_state(connector->state); 4736 struct dm_connector_state *dm_new_state = 4737 to_dm_connector_state(connector_state); 4738 4739 int ret = -EINVAL; 4740 4741 if (property == dev->mode_config.scaling_mode_property) { 4742 enum amdgpu_rmx_type rmx_type; 4743 4744 switch (val) { 4745 case DRM_MODE_SCALE_CENTER: 4746 rmx_type = RMX_CENTER; 4747 break; 4748 case DRM_MODE_SCALE_ASPECT: 4749 rmx_type = RMX_ASPECT; 4750 break; 4751 case DRM_MODE_SCALE_FULLSCREEN: 4752 rmx_type = RMX_FULL; 4753 break; 4754 case DRM_MODE_SCALE_NONE: 4755 default: 4756 rmx_type = RMX_OFF; 4757 break; 4758 } 4759 4760 if (dm_old_state->scaling == rmx_type) 4761 return 0; 4762 4763 dm_new_state->scaling = rmx_type; 4764 ret = 0; 4765 } else if (property == adev->mode_info.underscan_hborder_property) { 4766 dm_new_state->underscan_hborder = val; 4767 ret = 0; 4768 } else if (property == adev->mode_info.underscan_vborder_property) { 4769 dm_new_state->underscan_vborder = val; 4770 ret = 0; 4771 } else if (property == adev->mode_info.underscan_property) { 4772 dm_new_state->underscan_enable = val; 4773 ret = 0; 4774 } else if (property == adev->mode_info.abm_level_property) { 4775 dm_new_state->abm_level = val; 4776 ret = 0; 4777 } 4778 4779 return ret; 4780 } 4781 4782 int amdgpu_dm_connector_atomic_get_property(struct drm_connector *connector, 4783 const struct drm_connector_state *state, 4784 struct drm_property *property, 4785 uint64_t *val) 4786 { 4787 struct drm_device *dev = connector->dev; 4788 struct amdgpu_device *adev = dev->dev_private; 4789 struct dm_connector_state *dm_state = 4790 to_dm_connector_state(state); 4791 int ret = -EINVAL; 4792 4793 if (property == dev->mode_config.scaling_mode_property) { 4794 switch (dm_state->scaling) { 4795 case RMX_CENTER: 4796 *val = DRM_MODE_SCALE_CENTER; 4797 break; 4798 case RMX_ASPECT: 4799 *val = DRM_MODE_SCALE_ASPECT; 4800 break; 4801 case RMX_FULL: 4802 *val = DRM_MODE_SCALE_FULLSCREEN; 4803 break; 4804 case RMX_OFF: 4805 default: 4806 *val = DRM_MODE_SCALE_NONE; 4807 break; 4808 } 4809 ret = 0; 4810 } else if (property == adev->mode_info.underscan_hborder_property) { 4811 *val = dm_state->underscan_hborder; 4812 ret = 0; 4813 } else if (property == adev->mode_info.underscan_vborder_property) { 4814 *val = dm_state->underscan_vborder; 4815 ret = 0; 4816 } else if (property == adev->mode_info.underscan_property) { 4817 *val = dm_state->underscan_enable; 4818 ret = 0; 4819 } else if (property == adev->mode_info.abm_level_property) { 4820 *val = dm_state->abm_level; 4821 ret = 0; 4822 } 4823 4824 return ret; 4825 } 4826 4827 static void amdgpu_dm_connector_unregister(struct drm_connector *connector) 4828 { 4829 struct amdgpu_dm_connector *amdgpu_dm_connector = to_amdgpu_dm_connector(connector); 4830 4831 drm_dp_aux_unregister(&amdgpu_dm_connector->dm_dp_aux.aux); 4832 } 4833 4834 static void amdgpu_dm_connector_destroy(struct drm_connector *connector) 4835 { 4836 struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector); 4837 const struct dc_link *link = aconnector->dc_link; 4838 struct amdgpu_device *adev = connector->dev->dev_private; 4839 struct amdgpu_display_manager *dm = &adev->dm; 4840 4841 #if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) ||\ 4842 defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE) 4843 4844 if ((link->connector_signal & (SIGNAL_TYPE_EDP | SIGNAL_TYPE_LVDS)) && 4845 link->type != dc_connection_none && 4846 dm->backlight_dev) { 4847 backlight_device_unregister(dm->backlight_dev); 4848 dm->backlight_dev = NULL; 4849 } 4850 #endif 4851 4852 if (aconnector->dc_em_sink) 4853 dc_sink_release(aconnector->dc_em_sink); 4854 aconnector->dc_em_sink = NULL; 4855 if (aconnector->dc_sink) 4856 dc_sink_release(aconnector->dc_sink); 4857 aconnector->dc_sink = NULL; 4858 4859 drm_dp_cec_unregister_connector(&aconnector->dm_dp_aux.aux); 4860 drm_connector_unregister(connector); 4861 drm_connector_cleanup(connector); 4862 if (aconnector->i2c) { 4863 i2c_del_adapter(&aconnector->i2c->base); 4864 kfree(aconnector->i2c); 4865 } 4866 kfree(aconnector->dm_dp_aux.aux.name); 4867 4868 kfree(connector); 4869 } 4870 4871 void amdgpu_dm_connector_funcs_reset(struct drm_connector *connector) 4872 { 4873 struct dm_connector_state *state = 4874 to_dm_connector_state(connector->state); 4875 4876 if (connector->state) 4877 __drm_atomic_helper_connector_destroy_state(connector->state); 4878 4879 kfree(state); 4880 4881 state = kzalloc(sizeof(*state), GFP_KERNEL); 4882 4883 if (state) { 4884 state->scaling = RMX_OFF; 4885 state->underscan_enable = false; 4886 state->underscan_hborder = 0; 4887 state->underscan_vborder = 0; 4888 state->base.max_requested_bpc = 8; 4889 state->vcpi_slots = 0; 4890 state->pbn = 0; 4891 if (connector->connector_type == DRM_MODE_CONNECTOR_eDP) 4892 state->abm_level = amdgpu_dm_abm_level; 4893 4894 __drm_atomic_helper_connector_reset(connector, &state->base); 4895 } 4896 } 4897 4898 struct drm_connector_state * 4899 amdgpu_dm_connector_atomic_duplicate_state(struct drm_connector *connector) 4900 { 4901 struct dm_connector_state *state = 4902 to_dm_connector_state(connector->state); 4903 4904 struct dm_connector_state *new_state = 4905 kmemdup(state, sizeof(*state), GFP_KERNEL); 4906 4907 if (!new_state) 4908 return NULL; 4909 4910 __drm_atomic_helper_connector_duplicate_state(connector, &new_state->base); 4911 4912 new_state->freesync_capable = state->freesync_capable; 4913 new_state->abm_level = state->abm_level; 4914 new_state->scaling = state->scaling; 4915 new_state->underscan_enable = state->underscan_enable; 4916 new_state->underscan_hborder = state->underscan_hborder; 4917 new_state->underscan_vborder = state->underscan_vborder; 4918 new_state->vcpi_slots = state->vcpi_slots; 4919 new_state->pbn = state->pbn; 4920 return &new_state->base; 4921 } 4922 4923 static int 4924 amdgpu_dm_connector_late_register(struct drm_connector *connector) 4925 { 4926 struct amdgpu_dm_connector *amdgpu_dm_connector = 4927 to_amdgpu_dm_connector(connector); 4928 int r; 4929 4930 if ((connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) || 4931 (connector->connector_type == DRM_MODE_CONNECTOR_eDP)) { 4932 amdgpu_dm_connector->dm_dp_aux.aux.dev = connector->kdev; 4933 r = drm_dp_aux_register(&amdgpu_dm_connector->dm_dp_aux.aux); 4934 if (r) 4935 return r; 4936 } 4937 4938 #if defined(CONFIG_DEBUG_FS) 4939 connector_debugfs_init(amdgpu_dm_connector); 4940 #endif 4941 4942 return 0; 4943 } 4944 4945 static const struct drm_connector_funcs amdgpu_dm_connector_funcs = { 4946 .reset = amdgpu_dm_connector_funcs_reset, 4947 .detect = amdgpu_dm_connector_detect, 4948 .fill_modes = drm_helper_probe_single_connector_modes, 4949 .destroy = amdgpu_dm_connector_destroy, 4950 .atomic_duplicate_state = amdgpu_dm_connector_atomic_duplicate_state, 4951 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, 4952 .atomic_set_property = amdgpu_dm_connector_atomic_set_property, 4953 .atomic_get_property = amdgpu_dm_connector_atomic_get_property, 4954 .late_register = amdgpu_dm_connector_late_register, 4955 .early_unregister = amdgpu_dm_connector_unregister 4956 }; 4957 4958 static int get_modes(struct drm_connector *connector) 4959 { 4960 return amdgpu_dm_connector_get_modes(connector); 4961 } 4962 4963 static void create_eml_sink(struct amdgpu_dm_connector *aconnector) 4964 { 4965 struct dc_sink_init_data init_params = { 4966 .link = aconnector->dc_link, 4967 .sink_signal = SIGNAL_TYPE_VIRTUAL 4968 }; 4969 struct edid *edid; 4970 4971 if (!aconnector->base.edid_blob_ptr) { 4972 DRM_ERROR("No EDID firmware found on connector: %s ,forcing to OFF!\n", 4973 aconnector->base.name); 4974 4975 aconnector->base.force = DRM_FORCE_OFF; 4976 aconnector->base.override_edid = false; 4977 return; 4978 } 4979 4980 edid = (struct edid *) aconnector->base.edid_blob_ptr->data; 4981 4982 aconnector->edid = edid; 4983 4984 aconnector->dc_em_sink = dc_link_add_remote_sink( 4985 aconnector->dc_link, 4986 (uint8_t *)edid, 4987 (edid->extensions + 1) * EDID_LENGTH, 4988 &init_params); 4989 4990 if (aconnector->base.force == DRM_FORCE_ON) { 4991 aconnector->dc_sink = aconnector->dc_link->local_sink ? 4992 aconnector->dc_link->local_sink : 4993 aconnector->dc_em_sink; 4994 dc_sink_retain(aconnector->dc_sink); 4995 } 4996 } 4997 4998 static void handle_edid_mgmt(struct amdgpu_dm_connector *aconnector) 4999 { 5000 struct dc_link *link = (struct dc_link *)aconnector->dc_link; 5001 5002 /* 5003 * In case of headless boot with force on for DP managed connector 5004 * Those settings have to be != 0 to get initial modeset 5005 */ 5006 if (link->connector_signal == SIGNAL_TYPE_DISPLAY_PORT) { 5007 link->verified_link_cap.lane_count = LANE_COUNT_FOUR; 5008 link->verified_link_cap.link_rate = LINK_RATE_HIGH2; 5009 } 5010 5011 5012 aconnector->base.override_edid = true; 5013 create_eml_sink(aconnector); 5014 } 5015 5016 static struct dc_stream_state * 5017 create_validate_stream_for_sink(struct amdgpu_dm_connector *aconnector, 5018 const struct drm_display_mode *drm_mode, 5019 const struct dm_connector_state *dm_state, 5020 const struct dc_stream_state *old_stream) 5021 { 5022 struct drm_connector *connector = &aconnector->base; 5023 struct amdgpu_device *adev = connector->dev->dev_private; 5024 struct dc_stream_state *stream; 5025 int requested_bpc = connector->state ? connector->state->max_requested_bpc : 8; 5026 enum dc_status dc_result = DC_OK; 5027 5028 do { 5029 stream = create_stream_for_sink(aconnector, drm_mode, 5030 dm_state, old_stream, 5031 requested_bpc); 5032 if (stream == NULL) { 5033 DRM_ERROR("Failed to create stream for sink!\n"); 5034 break; 5035 } 5036 5037 dc_result = dc_validate_stream(adev->dm.dc, stream); 5038 5039 if (dc_result != DC_OK) { 5040 DRM_DEBUG_KMS("Mode %dx%d (clk %d) failed DC validation with error %d\n", 5041 drm_mode->hdisplay, 5042 drm_mode->vdisplay, 5043 drm_mode->clock, 5044 dc_result); 5045 5046 dc_stream_release(stream); 5047 stream = NULL; 5048 requested_bpc -= 2; /* lower bpc to retry validation */ 5049 } 5050 5051 } while (stream == NULL && requested_bpc >= 6); 5052 5053 return stream; 5054 } 5055 5056 enum drm_mode_status amdgpu_dm_connector_mode_valid(struct drm_connector *connector, 5057 struct drm_display_mode *mode) 5058 { 5059 int result = MODE_ERROR; 5060 struct dc_sink *dc_sink; 5061 /* TODO: Unhardcode stream count */ 5062 struct dc_stream_state *stream; 5063 struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector); 5064 5065 if ((mode->flags & DRM_MODE_FLAG_INTERLACE) || 5066 (mode->flags & DRM_MODE_FLAG_DBLSCAN)) 5067 return result; 5068 5069 /* 5070 * Only run this the first time mode_valid is called to initilialize 5071 * EDID mgmt 5072 */ 5073 if (aconnector->base.force != DRM_FORCE_UNSPECIFIED && 5074 !aconnector->dc_em_sink) 5075 handle_edid_mgmt(aconnector); 5076 5077 dc_sink = to_amdgpu_dm_connector(connector)->dc_sink; 5078 5079 if (dc_sink == NULL) { 5080 DRM_ERROR("dc_sink is NULL!\n"); 5081 goto fail; 5082 } 5083 5084 stream = create_validate_stream_for_sink(aconnector, mode, NULL, NULL); 5085 if (stream) { 5086 dc_stream_release(stream); 5087 result = MODE_OK; 5088 } 5089 5090 fail: 5091 /* TODO: error handling*/ 5092 return result; 5093 } 5094 5095 static int fill_hdr_info_packet(const struct drm_connector_state *state, 5096 struct dc_info_packet *out) 5097 { 5098 struct hdmi_drm_infoframe frame; 5099 unsigned char buf[30]; /* 26 + 4 */ 5100 ssize_t len; 5101 int ret, i; 5102 5103 memset(out, 0, sizeof(*out)); 5104 5105 if (!state->hdr_output_metadata) 5106 return 0; 5107 5108 ret = drm_hdmi_infoframe_set_hdr_metadata(&frame, state); 5109 if (ret) 5110 return ret; 5111 5112 len = hdmi_drm_infoframe_pack_only(&frame, buf, sizeof(buf)); 5113 if (len < 0) 5114 return (int)len; 5115 5116 /* Static metadata is a fixed 26 bytes + 4 byte header. */ 5117 if (len != 30) 5118 return -EINVAL; 5119 5120 /* Prepare the infopacket for DC. */ 5121 switch (state->connector->connector_type) { 5122 case DRM_MODE_CONNECTOR_HDMIA: 5123 out->hb0 = 0x87; /* type */ 5124 out->hb1 = 0x01; /* version */ 5125 out->hb2 = 0x1A; /* length */ 5126 out->sb[0] = buf[3]; /* checksum */ 5127 i = 1; 5128 break; 5129 5130 case DRM_MODE_CONNECTOR_DisplayPort: 5131 case DRM_MODE_CONNECTOR_eDP: 5132 out->hb0 = 0x00; /* sdp id, zero */ 5133 out->hb1 = 0x87; /* type */ 5134 out->hb2 = 0x1D; /* payload len - 1 */ 5135 out->hb3 = (0x13 << 2); /* sdp version */ 5136 out->sb[0] = 0x01; /* version */ 5137 out->sb[1] = 0x1A; /* length */ 5138 i = 2; 5139 break; 5140 5141 default: 5142 return -EINVAL; 5143 } 5144 5145 memcpy(&out->sb[i], &buf[4], 26); 5146 out->valid = true; 5147 5148 print_hex_dump(KERN_DEBUG, "HDR SB:", DUMP_PREFIX_NONE, 16, 1, out->sb, 5149 sizeof(out->sb), false); 5150 5151 return 0; 5152 } 5153 5154 static bool 5155 is_hdr_metadata_different(const struct drm_connector_state *old_state, 5156 const struct drm_connector_state *new_state) 5157 { 5158 struct drm_property_blob *old_blob = old_state->hdr_output_metadata; 5159 struct drm_property_blob *new_blob = new_state->hdr_output_metadata; 5160 5161 if (old_blob != new_blob) { 5162 if (old_blob && new_blob && 5163 old_blob->length == new_blob->length) 5164 return memcmp(old_blob->data, new_blob->data, 5165 old_blob->length); 5166 5167 return true; 5168 } 5169 5170 return false; 5171 } 5172 5173 static int 5174 amdgpu_dm_connector_atomic_check(struct drm_connector *conn, 5175 struct drm_atomic_state *state) 5176 { 5177 struct drm_connector_state *new_con_state = 5178 drm_atomic_get_new_connector_state(state, conn); 5179 struct drm_connector_state *old_con_state = 5180 drm_atomic_get_old_connector_state(state, conn); 5181 struct drm_crtc *crtc = new_con_state->crtc; 5182 struct drm_crtc_state *new_crtc_state; 5183 int ret; 5184 5185 if (!crtc) 5186 return 0; 5187 5188 if (is_hdr_metadata_different(old_con_state, new_con_state)) { 5189 struct dc_info_packet hdr_infopacket; 5190 5191 ret = fill_hdr_info_packet(new_con_state, &hdr_infopacket); 5192 if (ret) 5193 return ret; 5194 5195 new_crtc_state = drm_atomic_get_crtc_state(state, crtc); 5196 if (IS_ERR(new_crtc_state)) 5197 return PTR_ERR(new_crtc_state); 5198 5199 /* 5200 * DC considers the stream backends changed if the 5201 * static metadata changes. Forcing the modeset also 5202 * gives a simple way for userspace to switch from 5203 * 8bpc to 10bpc when setting the metadata to enter 5204 * or exit HDR. 5205 * 5206 * Changing the static metadata after it's been 5207 * set is permissible, however. So only force a 5208 * modeset if we're entering or exiting HDR. 5209 */ 5210 new_crtc_state->mode_changed = 5211 !old_con_state->hdr_output_metadata || 5212 !new_con_state->hdr_output_metadata; 5213 } 5214 5215 return 0; 5216 } 5217 5218 static const struct drm_connector_helper_funcs 5219 amdgpu_dm_connector_helper_funcs = { 5220 /* 5221 * If hotplugging a second bigger display in FB Con mode, bigger resolution 5222 * modes will be filtered by drm_mode_validate_size(), and those modes 5223 * are missing after user start lightdm. So we need to renew modes list. 5224 * in get_modes call back, not just return the modes count 5225 */ 5226 .get_modes = get_modes, 5227 .mode_valid = amdgpu_dm_connector_mode_valid, 5228 .atomic_check = amdgpu_dm_connector_atomic_check, 5229 }; 5230 5231 static void dm_crtc_helper_disable(struct drm_crtc *crtc) 5232 { 5233 } 5234 5235 static bool does_crtc_have_active_cursor(struct drm_crtc_state *new_crtc_state) 5236 { 5237 struct drm_device *dev = new_crtc_state->crtc->dev; 5238 struct drm_plane *plane; 5239 5240 drm_for_each_plane_mask(plane, dev, new_crtc_state->plane_mask) { 5241 if (plane->type == DRM_PLANE_TYPE_CURSOR) 5242 return true; 5243 } 5244 5245 return false; 5246 } 5247 5248 static int count_crtc_active_planes(struct drm_crtc_state *new_crtc_state) 5249 { 5250 struct drm_atomic_state *state = new_crtc_state->state; 5251 struct drm_plane *plane; 5252 int num_active = 0; 5253 5254 drm_for_each_plane_mask(plane, state->dev, new_crtc_state->plane_mask) { 5255 struct drm_plane_state *new_plane_state; 5256 5257 /* Cursor planes are "fake". */ 5258 if (plane->type == DRM_PLANE_TYPE_CURSOR) 5259 continue; 5260 5261 new_plane_state = drm_atomic_get_new_plane_state(state, plane); 5262 5263 if (!new_plane_state) { 5264 /* 5265 * The plane is enable on the CRTC and hasn't changed 5266 * state. This means that it previously passed 5267 * validation and is therefore enabled. 5268 */ 5269 num_active += 1; 5270 continue; 5271 } 5272 5273 /* We need a framebuffer to be considered enabled. */ 5274 num_active += (new_plane_state->fb != NULL); 5275 } 5276 5277 return num_active; 5278 } 5279 5280 /* 5281 * Sets whether interrupts should be enabled on a specific CRTC. 5282 * We require that the stream be enabled and that there exist active 5283 * DC planes on the stream. 5284 */ 5285 static void 5286 dm_update_crtc_interrupt_state(struct drm_crtc *crtc, 5287 struct drm_crtc_state *new_crtc_state) 5288 { 5289 struct dm_crtc_state *dm_new_crtc_state = 5290 to_dm_crtc_state(new_crtc_state); 5291 5292 dm_new_crtc_state->active_planes = 0; 5293 dm_new_crtc_state->interrupts_enabled = false; 5294 5295 if (!dm_new_crtc_state->stream) 5296 return; 5297 5298 dm_new_crtc_state->active_planes = 5299 count_crtc_active_planes(new_crtc_state); 5300 5301 dm_new_crtc_state->interrupts_enabled = 5302 dm_new_crtc_state->active_planes > 0; 5303 } 5304 5305 static int dm_crtc_helper_atomic_check(struct drm_crtc *crtc, 5306 struct drm_crtc_state *state) 5307 { 5308 struct amdgpu_device *adev = crtc->dev->dev_private; 5309 struct dc *dc = adev->dm.dc; 5310 struct dm_crtc_state *dm_crtc_state = to_dm_crtc_state(state); 5311 int ret = -EINVAL; 5312 5313 /* 5314 * Update interrupt state for the CRTC. This needs to happen whenever 5315 * the CRTC has changed or whenever any of its planes have changed. 5316 * Atomic check satisfies both of these requirements since the CRTC 5317 * is added to the state by DRM during drm_atomic_helper_check_planes. 5318 */ 5319 dm_update_crtc_interrupt_state(crtc, state); 5320 5321 if (unlikely(!dm_crtc_state->stream && 5322 modeset_required(state, NULL, dm_crtc_state->stream))) { 5323 WARN_ON(1); 5324 return ret; 5325 } 5326 5327 /* In some use cases, like reset, no stream is attached */ 5328 if (!dm_crtc_state->stream) 5329 return 0; 5330 5331 /* 5332 * We want at least one hardware plane enabled to use 5333 * the stream with a cursor enabled. 5334 */ 5335 if (state->enable && state->active && 5336 does_crtc_have_active_cursor(state) && 5337 dm_crtc_state->active_planes == 0) 5338 return -EINVAL; 5339 5340 if (dc_validate_stream(dc, dm_crtc_state->stream) == DC_OK) 5341 return 0; 5342 5343 return ret; 5344 } 5345 5346 static bool dm_crtc_helper_mode_fixup(struct drm_crtc *crtc, 5347 const struct drm_display_mode *mode, 5348 struct drm_display_mode *adjusted_mode) 5349 { 5350 return true; 5351 } 5352 5353 static const struct drm_crtc_helper_funcs amdgpu_dm_crtc_helper_funcs = { 5354 .disable = dm_crtc_helper_disable, 5355 .atomic_check = dm_crtc_helper_atomic_check, 5356 .mode_fixup = dm_crtc_helper_mode_fixup, 5357 .get_scanout_position = amdgpu_crtc_get_scanout_position, 5358 }; 5359 5360 static void dm_encoder_helper_disable(struct drm_encoder *encoder) 5361 { 5362 5363 } 5364 5365 static int convert_dc_color_depth_into_bpc (enum dc_color_depth display_color_depth) 5366 { 5367 switch (display_color_depth) { 5368 case COLOR_DEPTH_666: 5369 return 6; 5370 case COLOR_DEPTH_888: 5371 return 8; 5372 case COLOR_DEPTH_101010: 5373 return 10; 5374 case COLOR_DEPTH_121212: 5375 return 12; 5376 case COLOR_DEPTH_141414: 5377 return 14; 5378 case COLOR_DEPTH_161616: 5379 return 16; 5380 default: 5381 break; 5382 } 5383 return 0; 5384 } 5385 5386 static int dm_encoder_helper_atomic_check(struct drm_encoder *encoder, 5387 struct drm_crtc_state *crtc_state, 5388 struct drm_connector_state *conn_state) 5389 { 5390 struct drm_atomic_state *state = crtc_state->state; 5391 struct drm_connector *connector = conn_state->connector; 5392 struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector); 5393 struct dm_connector_state *dm_new_connector_state = to_dm_connector_state(conn_state); 5394 const struct drm_display_mode *adjusted_mode = &crtc_state->adjusted_mode; 5395 struct drm_dp_mst_topology_mgr *mst_mgr; 5396 struct drm_dp_mst_port *mst_port; 5397 enum dc_color_depth color_depth; 5398 int clock, bpp = 0; 5399 bool is_y420 = false; 5400 5401 if (!aconnector->port || !aconnector->dc_sink) 5402 return 0; 5403 5404 mst_port = aconnector->port; 5405 mst_mgr = &aconnector->mst_port->mst_mgr; 5406 5407 if (!crtc_state->connectors_changed && !crtc_state->mode_changed) 5408 return 0; 5409 5410 if (!state->duplicated) { 5411 int max_bpc = conn_state->max_requested_bpc; 5412 is_y420 = drm_mode_is_420_also(&connector->display_info, adjusted_mode) && 5413 aconnector->force_yuv420_output; 5414 color_depth = convert_color_depth_from_display_info(connector, 5415 is_y420, 5416 max_bpc); 5417 bpp = convert_dc_color_depth_into_bpc(color_depth) * 3; 5418 clock = adjusted_mode->clock; 5419 dm_new_connector_state->pbn = drm_dp_calc_pbn_mode(clock, bpp, false); 5420 } 5421 dm_new_connector_state->vcpi_slots = drm_dp_atomic_find_vcpi_slots(state, 5422 mst_mgr, 5423 mst_port, 5424 dm_new_connector_state->pbn, 5425 0); 5426 if (dm_new_connector_state->vcpi_slots < 0) { 5427 DRM_DEBUG_ATOMIC("failed finding vcpi slots: %d\n", (int)dm_new_connector_state->vcpi_slots); 5428 return dm_new_connector_state->vcpi_slots; 5429 } 5430 return 0; 5431 } 5432 5433 const struct drm_encoder_helper_funcs amdgpu_dm_encoder_helper_funcs = { 5434 .disable = dm_encoder_helper_disable, 5435 .atomic_check = dm_encoder_helper_atomic_check 5436 }; 5437 5438 #if defined(CONFIG_DRM_AMD_DC_DCN) 5439 static int dm_update_mst_vcpi_slots_for_dsc(struct drm_atomic_state *state, 5440 struct dc_state *dc_state) 5441 { 5442 struct dc_stream_state *stream = NULL; 5443 struct drm_connector *connector; 5444 struct drm_connector_state *new_con_state, *old_con_state; 5445 struct amdgpu_dm_connector *aconnector; 5446 struct dm_connector_state *dm_conn_state; 5447 int i, j, clock, bpp; 5448 int vcpi, pbn_div, pbn = 0; 5449 5450 for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) { 5451 5452 aconnector = to_amdgpu_dm_connector(connector); 5453 5454 if (!aconnector->port) 5455 continue; 5456 5457 if (!new_con_state || !new_con_state->crtc) 5458 continue; 5459 5460 dm_conn_state = to_dm_connector_state(new_con_state); 5461 5462 for (j = 0; j < dc_state->stream_count; j++) { 5463 stream = dc_state->streams[j]; 5464 if (!stream) 5465 continue; 5466 5467 if ((struct amdgpu_dm_connector*)stream->dm_stream_context == aconnector) 5468 break; 5469 5470 stream = NULL; 5471 } 5472 5473 if (!stream) 5474 continue; 5475 5476 if (stream->timing.flags.DSC != 1) { 5477 drm_dp_mst_atomic_enable_dsc(state, 5478 aconnector->port, 5479 dm_conn_state->pbn, 5480 0, 5481 false); 5482 continue; 5483 } 5484 5485 pbn_div = dm_mst_get_pbn_divider(stream->link); 5486 bpp = stream->timing.dsc_cfg.bits_per_pixel; 5487 clock = stream->timing.pix_clk_100hz / 10; 5488 pbn = drm_dp_calc_pbn_mode(clock, bpp, true); 5489 vcpi = drm_dp_mst_atomic_enable_dsc(state, 5490 aconnector->port, 5491 pbn, pbn_div, 5492 true); 5493 if (vcpi < 0) 5494 return vcpi; 5495 5496 dm_conn_state->pbn = pbn; 5497 dm_conn_state->vcpi_slots = vcpi; 5498 } 5499 return 0; 5500 } 5501 #endif 5502 5503 static void dm_drm_plane_reset(struct drm_plane *plane) 5504 { 5505 struct dm_plane_state *amdgpu_state = NULL; 5506 5507 if (plane->state) 5508 plane->funcs->atomic_destroy_state(plane, plane->state); 5509 5510 amdgpu_state = kzalloc(sizeof(*amdgpu_state), GFP_KERNEL); 5511 WARN_ON(amdgpu_state == NULL); 5512 5513 if (amdgpu_state) 5514 __drm_atomic_helper_plane_reset(plane, &amdgpu_state->base); 5515 } 5516 5517 static struct drm_plane_state * 5518 dm_drm_plane_duplicate_state(struct drm_plane *plane) 5519 { 5520 struct dm_plane_state *dm_plane_state, *old_dm_plane_state; 5521 5522 old_dm_plane_state = to_dm_plane_state(plane->state); 5523 dm_plane_state = kzalloc(sizeof(*dm_plane_state), GFP_KERNEL); 5524 if (!dm_plane_state) 5525 return NULL; 5526 5527 __drm_atomic_helper_plane_duplicate_state(plane, &dm_plane_state->base); 5528 5529 if (old_dm_plane_state->dc_state) { 5530 dm_plane_state->dc_state = old_dm_plane_state->dc_state; 5531 dc_plane_state_retain(dm_plane_state->dc_state); 5532 } 5533 5534 return &dm_plane_state->base; 5535 } 5536 5537 void dm_drm_plane_destroy_state(struct drm_plane *plane, 5538 struct drm_plane_state *state) 5539 { 5540 struct dm_plane_state *dm_plane_state = to_dm_plane_state(state); 5541 5542 if (dm_plane_state->dc_state) 5543 dc_plane_state_release(dm_plane_state->dc_state); 5544 5545 drm_atomic_helper_plane_destroy_state(plane, state); 5546 } 5547 5548 static const struct drm_plane_funcs dm_plane_funcs = { 5549 .update_plane = drm_atomic_helper_update_plane, 5550 .disable_plane = drm_atomic_helper_disable_plane, 5551 .destroy = drm_primary_helper_destroy, 5552 .reset = dm_drm_plane_reset, 5553 .atomic_duplicate_state = dm_drm_plane_duplicate_state, 5554 .atomic_destroy_state = dm_drm_plane_destroy_state, 5555 }; 5556 5557 static int dm_plane_helper_prepare_fb(struct drm_plane *plane, 5558 struct drm_plane_state *new_state) 5559 { 5560 struct amdgpu_framebuffer *afb; 5561 struct drm_gem_object *obj; 5562 struct amdgpu_device *adev; 5563 struct amdgpu_bo *rbo; 5564 struct dm_plane_state *dm_plane_state_new, *dm_plane_state_old; 5565 struct list_head list; 5566 struct ttm_validate_buffer tv; 5567 struct ww_acquire_ctx ticket; 5568 uint64_t tiling_flags; 5569 uint32_t domain; 5570 int r; 5571 bool tmz_surface = false; 5572 bool force_disable_dcc = false; 5573 5574 dm_plane_state_old = to_dm_plane_state(plane->state); 5575 dm_plane_state_new = to_dm_plane_state(new_state); 5576 5577 if (!new_state->fb) { 5578 DRM_DEBUG_DRIVER("No FB bound\n"); 5579 return 0; 5580 } 5581 5582 afb = to_amdgpu_framebuffer(new_state->fb); 5583 obj = new_state->fb->obj[0]; 5584 rbo = gem_to_amdgpu_bo(obj); 5585 adev = amdgpu_ttm_adev(rbo->tbo.bdev); 5586 INIT_LIST_HEAD(&list); 5587 5588 tv.bo = &rbo->tbo; 5589 tv.num_shared = 1; 5590 list_add(&tv.head, &list); 5591 5592 r = ttm_eu_reserve_buffers(&ticket, &list, false, NULL); 5593 if (r) { 5594 dev_err(adev->dev, "fail to reserve bo (%d)\n", r); 5595 return r; 5596 } 5597 5598 if (plane->type != DRM_PLANE_TYPE_CURSOR) 5599 domain = amdgpu_display_supported_domains(adev, rbo->flags); 5600 else 5601 domain = AMDGPU_GEM_DOMAIN_VRAM; 5602 5603 r = amdgpu_bo_pin(rbo, domain); 5604 if (unlikely(r != 0)) { 5605 if (r != -ERESTARTSYS) 5606 DRM_ERROR("Failed to pin framebuffer with error %d\n", r); 5607 ttm_eu_backoff_reservation(&ticket, &list); 5608 return r; 5609 } 5610 5611 r = amdgpu_ttm_alloc_gart(&rbo->tbo); 5612 if (unlikely(r != 0)) { 5613 amdgpu_bo_unpin(rbo); 5614 ttm_eu_backoff_reservation(&ticket, &list); 5615 DRM_ERROR("%p bind failed\n", rbo); 5616 return r; 5617 } 5618 5619 amdgpu_bo_get_tiling_flags(rbo, &tiling_flags); 5620 5621 tmz_surface = amdgpu_bo_encrypted(rbo); 5622 5623 ttm_eu_backoff_reservation(&ticket, &list); 5624 5625 afb->address = amdgpu_bo_gpu_offset(rbo); 5626 5627 amdgpu_bo_ref(rbo); 5628 5629 if (dm_plane_state_new->dc_state && 5630 dm_plane_state_old->dc_state != dm_plane_state_new->dc_state) { 5631 struct dc_plane_state *plane_state = dm_plane_state_new->dc_state; 5632 5633 force_disable_dcc = adev->asic_type == CHIP_RAVEN && adev->in_suspend; 5634 fill_plane_buffer_attributes( 5635 adev, afb, plane_state->format, plane_state->rotation, 5636 tiling_flags, &plane_state->tiling_info, 5637 &plane_state->plane_size, &plane_state->dcc, 5638 &plane_state->address, tmz_surface, 5639 force_disable_dcc); 5640 } 5641 5642 return 0; 5643 } 5644 5645 static void dm_plane_helper_cleanup_fb(struct drm_plane *plane, 5646 struct drm_plane_state *old_state) 5647 { 5648 struct amdgpu_bo *rbo; 5649 int r; 5650 5651 if (!old_state->fb) 5652 return; 5653 5654 rbo = gem_to_amdgpu_bo(old_state->fb->obj[0]); 5655 r = amdgpu_bo_reserve(rbo, false); 5656 if (unlikely(r)) { 5657 DRM_ERROR("failed to reserve rbo before unpin\n"); 5658 return; 5659 } 5660 5661 amdgpu_bo_unpin(rbo); 5662 amdgpu_bo_unreserve(rbo); 5663 amdgpu_bo_unref(&rbo); 5664 } 5665 5666 static int dm_plane_atomic_check(struct drm_plane *plane, 5667 struct drm_plane_state *state) 5668 { 5669 struct amdgpu_device *adev = plane->dev->dev_private; 5670 struct dc *dc = adev->dm.dc; 5671 struct dm_plane_state *dm_plane_state; 5672 struct dc_scaling_info scaling_info; 5673 int ret; 5674 5675 dm_plane_state = to_dm_plane_state(state); 5676 5677 if (!dm_plane_state->dc_state) 5678 return 0; 5679 5680 ret = fill_dc_scaling_info(state, &scaling_info); 5681 if (ret) 5682 return ret; 5683 5684 if (dc_validate_plane(dc, dm_plane_state->dc_state) == DC_OK) 5685 return 0; 5686 5687 return -EINVAL; 5688 } 5689 5690 static int dm_plane_atomic_async_check(struct drm_plane *plane, 5691 struct drm_plane_state *new_plane_state) 5692 { 5693 /* Only support async updates on cursor planes. */ 5694 if (plane->type != DRM_PLANE_TYPE_CURSOR) 5695 return -EINVAL; 5696 5697 return 0; 5698 } 5699 5700 static void dm_plane_atomic_async_update(struct drm_plane *plane, 5701 struct drm_plane_state *new_state) 5702 { 5703 struct drm_plane_state *old_state = 5704 drm_atomic_get_old_plane_state(new_state->state, plane); 5705 5706 swap(plane->state->fb, new_state->fb); 5707 5708 plane->state->src_x = new_state->src_x; 5709 plane->state->src_y = new_state->src_y; 5710 plane->state->src_w = new_state->src_w; 5711 plane->state->src_h = new_state->src_h; 5712 plane->state->crtc_x = new_state->crtc_x; 5713 plane->state->crtc_y = new_state->crtc_y; 5714 plane->state->crtc_w = new_state->crtc_w; 5715 plane->state->crtc_h = new_state->crtc_h; 5716 5717 handle_cursor_update(plane, old_state); 5718 } 5719 5720 static const struct drm_plane_helper_funcs dm_plane_helper_funcs = { 5721 .prepare_fb = dm_plane_helper_prepare_fb, 5722 .cleanup_fb = dm_plane_helper_cleanup_fb, 5723 .atomic_check = dm_plane_atomic_check, 5724 .atomic_async_check = dm_plane_atomic_async_check, 5725 .atomic_async_update = dm_plane_atomic_async_update 5726 }; 5727 5728 /* 5729 * TODO: these are currently initialized to rgb formats only. 5730 * For future use cases we should either initialize them dynamically based on 5731 * plane capabilities, or initialize this array to all formats, so internal drm 5732 * check will succeed, and let DC implement proper check 5733 */ 5734 static const uint32_t rgb_formats[] = { 5735 DRM_FORMAT_XRGB8888, 5736 DRM_FORMAT_ARGB8888, 5737 DRM_FORMAT_RGBA8888, 5738 DRM_FORMAT_XRGB2101010, 5739 DRM_FORMAT_XBGR2101010, 5740 DRM_FORMAT_ARGB2101010, 5741 DRM_FORMAT_ABGR2101010, 5742 DRM_FORMAT_XBGR8888, 5743 DRM_FORMAT_ABGR8888, 5744 DRM_FORMAT_RGB565, 5745 }; 5746 5747 static const uint32_t overlay_formats[] = { 5748 DRM_FORMAT_XRGB8888, 5749 DRM_FORMAT_ARGB8888, 5750 DRM_FORMAT_RGBA8888, 5751 DRM_FORMAT_XBGR8888, 5752 DRM_FORMAT_ABGR8888, 5753 DRM_FORMAT_RGB565 5754 }; 5755 5756 static const u32 cursor_formats[] = { 5757 DRM_FORMAT_ARGB8888 5758 }; 5759 5760 static int get_plane_formats(const struct drm_plane *plane, 5761 const struct dc_plane_cap *plane_cap, 5762 uint32_t *formats, int max_formats) 5763 { 5764 int i, num_formats = 0; 5765 5766 /* 5767 * TODO: Query support for each group of formats directly from 5768 * DC plane caps. This will require adding more formats to the 5769 * caps list. 5770 */ 5771 5772 switch (plane->type) { 5773 case DRM_PLANE_TYPE_PRIMARY: 5774 for (i = 0; i < ARRAY_SIZE(rgb_formats); ++i) { 5775 if (num_formats >= max_formats) 5776 break; 5777 5778 formats[num_formats++] = rgb_formats[i]; 5779 } 5780 5781 if (plane_cap && plane_cap->pixel_format_support.nv12) 5782 formats[num_formats++] = DRM_FORMAT_NV12; 5783 if (plane_cap && plane_cap->pixel_format_support.p010) 5784 formats[num_formats++] = DRM_FORMAT_P010; 5785 if (plane_cap && plane_cap->pixel_format_support.fp16) { 5786 formats[num_formats++] = DRM_FORMAT_XRGB16161616F; 5787 formats[num_formats++] = DRM_FORMAT_ARGB16161616F; 5788 formats[num_formats++] = DRM_FORMAT_XBGR16161616F; 5789 formats[num_formats++] = DRM_FORMAT_ABGR16161616F; 5790 } 5791 break; 5792 5793 case DRM_PLANE_TYPE_OVERLAY: 5794 for (i = 0; i < ARRAY_SIZE(overlay_formats); ++i) { 5795 if (num_formats >= max_formats) 5796 break; 5797 5798 formats[num_formats++] = overlay_formats[i]; 5799 } 5800 break; 5801 5802 case DRM_PLANE_TYPE_CURSOR: 5803 for (i = 0; i < ARRAY_SIZE(cursor_formats); ++i) { 5804 if (num_formats >= max_formats) 5805 break; 5806 5807 formats[num_formats++] = cursor_formats[i]; 5808 } 5809 break; 5810 } 5811 5812 return num_formats; 5813 } 5814 5815 static int amdgpu_dm_plane_init(struct amdgpu_display_manager *dm, 5816 struct drm_plane *plane, 5817 unsigned long possible_crtcs, 5818 const struct dc_plane_cap *plane_cap) 5819 { 5820 uint32_t formats[32]; 5821 int num_formats; 5822 int res = -EPERM; 5823 5824 num_formats = get_plane_formats(plane, plane_cap, formats, 5825 ARRAY_SIZE(formats)); 5826 5827 res = drm_universal_plane_init(dm->adev->ddev, plane, possible_crtcs, 5828 &dm_plane_funcs, formats, num_formats, 5829 NULL, plane->type, NULL); 5830 if (res) 5831 return res; 5832 5833 if (plane->type == DRM_PLANE_TYPE_OVERLAY && 5834 plane_cap && plane_cap->per_pixel_alpha) { 5835 unsigned int blend_caps = BIT(DRM_MODE_BLEND_PIXEL_NONE) | 5836 BIT(DRM_MODE_BLEND_PREMULTI); 5837 5838 drm_plane_create_alpha_property(plane); 5839 drm_plane_create_blend_mode_property(plane, blend_caps); 5840 } 5841 5842 if (plane->type == DRM_PLANE_TYPE_PRIMARY && 5843 plane_cap && 5844 (plane_cap->pixel_format_support.nv12 || 5845 plane_cap->pixel_format_support.p010)) { 5846 /* This only affects YUV formats. */ 5847 drm_plane_create_color_properties( 5848 plane, 5849 BIT(DRM_COLOR_YCBCR_BT601) | 5850 BIT(DRM_COLOR_YCBCR_BT709) | 5851 BIT(DRM_COLOR_YCBCR_BT2020), 5852 BIT(DRM_COLOR_YCBCR_LIMITED_RANGE) | 5853 BIT(DRM_COLOR_YCBCR_FULL_RANGE), 5854 DRM_COLOR_YCBCR_BT709, DRM_COLOR_YCBCR_LIMITED_RANGE); 5855 } 5856 5857 drm_plane_helper_add(plane, &dm_plane_helper_funcs); 5858 5859 /* Create (reset) the plane state */ 5860 if (plane->funcs->reset) 5861 plane->funcs->reset(plane); 5862 5863 return 0; 5864 } 5865 5866 static int amdgpu_dm_crtc_init(struct amdgpu_display_manager *dm, 5867 struct drm_plane *plane, 5868 uint32_t crtc_index) 5869 { 5870 struct amdgpu_crtc *acrtc = NULL; 5871 struct drm_plane *cursor_plane; 5872 5873 int res = -ENOMEM; 5874 5875 cursor_plane = kzalloc(sizeof(*cursor_plane), GFP_KERNEL); 5876 if (!cursor_plane) 5877 goto fail; 5878 5879 cursor_plane->type = DRM_PLANE_TYPE_CURSOR; 5880 res = amdgpu_dm_plane_init(dm, cursor_plane, 0, NULL); 5881 5882 acrtc = kzalloc(sizeof(struct amdgpu_crtc), GFP_KERNEL); 5883 if (!acrtc) 5884 goto fail; 5885 5886 res = drm_crtc_init_with_planes( 5887 dm->ddev, 5888 &acrtc->base, 5889 plane, 5890 cursor_plane, 5891 &amdgpu_dm_crtc_funcs, NULL); 5892 5893 if (res) 5894 goto fail; 5895 5896 drm_crtc_helper_add(&acrtc->base, &amdgpu_dm_crtc_helper_funcs); 5897 5898 /* Create (reset) the plane state */ 5899 if (acrtc->base.funcs->reset) 5900 acrtc->base.funcs->reset(&acrtc->base); 5901 5902 acrtc->max_cursor_width = dm->adev->dm.dc->caps.max_cursor_size; 5903 acrtc->max_cursor_height = dm->adev->dm.dc->caps.max_cursor_size; 5904 5905 acrtc->crtc_id = crtc_index; 5906 acrtc->base.enabled = false; 5907 acrtc->otg_inst = -1; 5908 5909 dm->adev->mode_info.crtcs[crtc_index] = acrtc; 5910 drm_crtc_enable_color_mgmt(&acrtc->base, MAX_COLOR_LUT_ENTRIES, 5911 true, MAX_COLOR_LUT_ENTRIES); 5912 drm_mode_crtc_set_gamma_size(&acrtc->base, MAX_COLOR_LEGACY_LUT_ENTRIES); 5913 5914 return 0; 5915 5916 fail: 5917 kfree(acrtc); 5918 kfree(cursor_plane); 5919 return res; 5920 } 5921 5922 5923 static int to_drm_connector_type(enum signal_type st) 5924 { 5925 switch (st) { 5926 case SIGNAL_TYPE_HDMI_TYPE_A: 5927 return DRM_MODE_CONNECTOR_HDMIA; 5928 case SIGNAL_TYPE_EDP: 5929 return DRM_MODE_CONNECTOR_eDP; 5930 case SIGNAL_TYPE_LVDS: 5931 return DRM_MODE_CONNECTOR_LVDS; 5932 case SIGNAL_TYPE_RGB: 5933 return DRM_MODE_CONNECTOR_VGA; 5934 case SIGNAL_TYPE_DISPLAY_PORT: 5935 case SIGNAL_TYPE_DISPLAY_PORT_MST: 5936 return DRM_MODE_CONNECTOR_DisplayPort; 5937 case SIGNAL_TYPE_DVI_DUAL_LINK: 5938 case SIGNAL_TYPE_DVI_SINGLE_LINK: 5939 return DRM_MODE_CONNECTOR_DVID; 5940 case SIGNAL_TYPE_VIRTUAL: 5941 return DRM_MODE_CONNECTOR_VIRTUAL; 5942 5943 default: 5944 return DRM_MODE_CONNECTOR_Unknown; 5945 } 5946 } 5947 5948 static struct drm_encoder *amdgpu_dm_connector_to_encoder(struct drm_connector *connector) 5949 { 5950 struct drm_encoder *encoder; 5951 5952 /* There is only one encoder per connector */ 5953 drm_connector_for_each_possible_encoder(connector, encoder) 5954 return encoder; 5955 5956 return NULL; 5957 } 5958 5959 static void amdgpu_dm_get_native_mode(struct drm_connector *connector) 5960 { 5961 struct drm_encoder *encoder; 5962 struct amdgpu_encoder *amdgpu_encoder; 5963 5964 encoder = amdgpu_dm_connector_to_encoder(connector); 5965 5966 if (encoder == NULL) 5967 return; 5968 5969 amdgpu_encoder = to_amdgpu_encoder(encoder); 5970 5971 amdgpu_encoder->native_mode.clock = 0; 5972 5973 if (!list_empty(&connector->probed_modes)) { 5974 struct drm_display_mode *preferred_mode = NULL; 5975 5976 list_for_each_entry(preferred_mode, 5977 &connector->probed_modes, 5978 head) { 5979 if (preferred_mode->type & DRM_MODE_TYPE_PREFERRED) 5980 amdgpu_encoder->native_mode = *preferred_mode; 5981 5982 break; 5983 } 5984 5985 } 5986 } 5987 5988 static struct drm_display_mode * 5989 amdgpu_dm_create_common_mode(struct drm_encoder *encoder, 5990 char *name, 5991 int hdisplay, int vdisplay) 5992 { 5993 struct drm_device *dev = encoder->dev; 5994 struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder); 5995 struct drm_display_mode *mode = NULL; 5996 struct drm_display_mode *native_mode = &amdgpu_encoder->native_mode; 5997 5998 mode = drm_mode_duplicate(dev, native_mode); 5999 6000 if (mode == NULL) 6001 return NULL; 6002 6003 mode->hdisplay = hdisplay; 6004 mode->vdisplay = vdisplay; 6005 mode->type &= ~DRM_MODE_TYPE_PREFERRED; 6006 strscpy(mode->name, name, DRM_DISPLAY_MODE_LEN); 6007 6008 return mode; 6009 6010 } 6011 6012 static void amdgpu_dm_connector_add_common_modes(struct drm_encoder *encoder, 6013 struct drm_connector *connector) 6014 { 6015 struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder); 6016 struct drm_display_mode *mode = NULL; 6017 struct drm_display_mode *native_mode = &amdgpu_encoder->native_mode; 6018 struct amdgpu_dm_connector *amdgpu_dm_connector = 6019 to_amdgpu_dm_connector(connector); 6020 int i; 6021 int n; 6022 struct mode_size { 6023 char name[DRM_DISPLAY_MODE_LEN]; 6024 int w; 6025 int h; 6026 } common_modes[] = { 6027 { "640x480", 640, 480}, 6028 { "800x600", 800, 600}, 6029 { "1024x768", 1024, 768}, 6030 { "1280x720", 1280, 720}, 6031 { "1280x800", 1280, 800}, 6032 {"1280x1024", 1280, 1024}, 6033 { "1440x900", 1440, 900}, 6034 {"1680x1050", 1680, 1050}, 6035 {"1600x1200", 1600, 1200}, 6036 {"1920x1080", 1920, 1080}, 6037 {"1920x1200", 1920, 1200} 6038 }; 6039 6040 n = ARRAY_SIZE(common_modes); 6041 6042 for (i = 0; i < n; i++) { 6043 struct drm_display_mode *curmode = NULL; 6044 bool mode_existed = false; 6045 6046 if (common_modes[i].w > native_mode->hdisplay || 6047 common_modes[i].h > native_mode->vdisplay || 6048 (common_modes[i].w == native_mode->hdisplay && 6049 common_modes[i].h == native_mode->vdisplay)) 6050 continue; 6051 6052 list_for_each_entry(curmode, &connector->probed_modes, head) { 6053 if (common_modes[i].w == curmode->hdisplay && 6054 common_modes[i].h == curmode->vdisplay) { 6055 mode_existed = true; 6056 break; 6057 } 6058 } 6059 6060 if (mode_existed) 6061 continue; 6062 6063 mode = amdgpu_dm_create_common_mode(encoder, 6064 common_modes[i].name, common_modes[i].w, 6065 common_modes[i].h); 6066 drm_mode_probed_add(connector, mode); 6067 amdgpu_dm_connector->num_modes++; 6068 } 6069 } 6070 6071 static void amdgpu_dm_connector_ddc_get_modes(struct drm_connector *connector, 6072 struct edid *edid) 6073 { 6074 struct amdgpu_dm_connector *amdgpu_dm_connector = 6075 to_amdgpu_dm_connector(connector); 6076 6077 if (edid) { 6078 /* empty probed_modes */ 6079 INIT_LIST_HEAD(&connector->probed_modes); 6080 amdgpu_dm_connector->num_modes = 6081 drm_add_edid_modes(connector, edid); 6082 6083 /* sorting the probed modes before calling function 6084 * amdgpu_dm_get_native_mode() since EDID can have 6085 * more than one preferred mode. The modes that are 6086 * later in the probed mode list could be of higher 6087 * and preferred resolution. For example, 3840x2160 6088 * resolution in base EDID preferred timing and 4096x2160 6089 * preferred resolution in DID extension block later. 6090 */ 6091 drm_mode_sort(&connector->probed_modes); 6092 amdgpu_dm_get_native_mode(connector); 6093 } else { 6094 amdgpu_dm_connector->num_modes = 0; 6095 } 6096 } 6097 6098 static int amdgpu_dm_connector_get_modes(struct drm_connector *connector) 6099 { 6100 struct amdgpu_dm_connector *amdgpu_dm_connector = 6101 to_amdgpu_dm_connector(connector); 6102 struct drm_encoder *encoder; 6103 struct edid *edid = amdgpu_dm_connector->edid; 6104 6105 encoder = amdgpu_dm_connector_to_encoder(connector); 6106 6107 if (!edid || !drm_edid_is_valid(edid)) { 6108 amdgpu_dm_connector->num_modes = 6109 drm_add_modes_noedid(connector, 640, 480); 6110 } else { 6111 amdgpu_dm_connector_ddc_get_modes(connector, edid); 6112 amdgpu_dm_connector_add_common_modes(encoder, connector); 6113 } 6114 amdgpu_dm_fbc_init(connector); 6115 6116 return amdgpu_dm_connector->num_modes; 6117 } 6118 6119 void amdgpu_dm_connector_init_helper(struct amdgpu_display_manager *dm, 6120 struct amdgpu_dm_connector *aconnector, 6121 int connector_type, 6122 struct dc_link *link, 6123 int link_index) 6124 { 6125 struct amdgpu_device *adev = dm->ddev->dev_private; 6126 6127 /* 6128 * Some of the properties below require access to state, like bpc. 6129 * Allocate some default initial connector state with our reset helper. 6130 */ 6131 if (aconnector->base.funcs->reset) 6132 aconnector->base.funcs->reset(&aconnector->base); 6133 6134 aconnector->connector_id = link_index; 6135 aconnector->dc_link = link; 6136 aconnector->base.interlace_allowed = false; 6137 aconnector->base.doublescan_allowed = false; 6138 aconnector->base.stereo_allowed = false; 6139 aconnector->base.dpms = DRM_MODE_DPMS_OFF; 6140 aconnector->hpd.hpd = AMDGPU_HPD_NONE; /* not used */ 6141 aconnector->audio_inst = -1; 6142 mutex_init(&aconnector->hpd_lock); 6143 6144 /* 6145 * configure support HPD hot plug connector_>polled default value is 0 6146 * which means HPD hot plug not supported 6147 */ 6148 switch (connector_type) { 6149 case DRM_MODE_CONNECTOR_HDMIA: 6150 aconnector->base.polled = DRM_CONNECTOR_POLL_HPD; 6151 aconnector->base.ycbcr_420_allowed = 6152 link->link_enc->features.hdmi_ycbcr420_supported ? true : false; 6153 break; 6154 case DRM_MODE_CONNECTOR_DisplayPort: 6155 aconnector->base.polled = DRM_CONNECTOR_POLL_HPD; 6156 aconnector->base.ycbcr_420_allowed = 6157 link->link_enc->features.dp_ycbcr420_supported ? true : false; 6158 break; 6159 case DRM_MODE_CONNECTOR_DVID: 6160 aconnector->base.polled = DRM_CONNECTOR_POLL_HPD; 6161 break; 6162 default: 6163 break; 6164 } 6165 6166 drm_object_attach_property(&aconnector->base.base, 6167 dm->ddev->mode_config.scaling_mode_property, 6168 DRM_MODE_SCALE_NONE); 6169 6170 drm_object_attach_property(&aconnector->base.base, 6171 adev->mode_info.underscan_property, 6172 UNDERSCAN_OFF); 6173 drm_object_attach_property(&aconnector->base.base, 6174 adev->mode_info.underscan_hborder_property, 6175 0); 6176 drm_object_attach_property(&aconnector->base.base, 6177 adev->mode_info.underscan_vborder_property, 6178 0); 6179 6180 if (!aconnector->mst_port) 6181 drm_connector_attach_max_bpc_property(&aconnector->base, 8, 16); 6182 6183 /* This defaults to the max in the range, but we want 8bpc for non-edp. */ 6184 aconnector->base.state->max_bpc = (connector_type == DRM_MODE_CONNECTOR_eDP) ? 16 : 8; 6185 aconnector->base.state->max_requested_bpc = aconnector->base.state->max_bpc; 6186 6187 if (connector_type == DRM_MODE_CONNECTOR_eDP && 6188 dc_is_dmcu_initialized(adev->dm.dc)) { 6189 drm_object_attach_property(&aconnector->base.base, 6190 adev->mode_info.abm_level_property, 0); 6191 } 6192 6193 if (connector_type == DRM_MODE_CONNECTOR_HDMIA || 6194 connector_type == DRM_MODE_CONNECTOR_DisplayPort || 6195 connector_type == DRM_MODE_CONNECTOR_eDP) { 6196 drm_object_attach_property( 6197 &aconnector->base.base, 6198 dm->ddev->mode_config.hdr_output_metadata_property, 0); 6199 6200 if (!aconnector->mst_port) 6201 drm_connector_attach_vrr_capable_property(&aconnector->base); 6202 6203 #ifdef CONFIG_DRM_AMD_DC_HDCP 6204 if (adev->dm.hdcp_workqueue) 6205 drm_connector_attach_content_protection_property(&aconnector->base, true); 6206 #endif 6207 } 6208 } 6209 6210 static int amdgpu_dm_i2c_xfer(struct i2c_adapter *i2c_adap, 6211 struct i2c_msg *msgs, int num) 6212 { 6213 struct amdgpu_i2c_adapter *i2c = i2c_get_adapdata(i2c_adap); 6214 struct ddc_service *ddc_service = i2c->ddc_service; 6215 struct i2c_command cmd; 6216 int i; 6217 int result = -EIO; 6218 6219 cmd.payloads = kcalloc(num, sizeof(struct i2c_payload), GFP_KERNEL); 6220 6221 if (!cmd.payloads) 6222 return result; 6223 6224 cmd.number_of_payloads = num; 6225 cmd.engine = I2C_COMMAND_ENGINE_DEFAULT; 6226 cmd.speed = 100; 6227 6228 for (i = 0; i < num; i++) { 6229 cmd.payloads[i].write = !(msgs[i].flags & I2C_M_RD); 6230 cmd.payloads[i].address = msgs[i].addr; 6231 cmd.payloads[i].length = msgs[i].len; 6232 cmd.payloads[i].data = msgs[i].buf; 6233 } 6234 6235 if (dc_submit_i2c( 6236 ddc_service->ctx->dc, 6237 ddc_service->ddc_pin->hw_info.ddc_channel, 6238 &cmd)) 6239 result = num; 6240 6241 kfree(cmd.payloads); 6242 return result; 6243 } 6244 6245 static u32 amdgpu_dm_i2c_func(struct i2c_adapter *adap) 6246 { 6247 return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL; 6248 } 6249 6250 static const struct i2c_algorithm amdgpu_dm_i2c_algo = { 6251 .master_xfer = amdgpu_dm_i2c_xfer, 6252 .functionality = amdgpu_dm_i2c_func, 6253 }; 6254 6255 static struct amdgpu_i2c_adapter * 6256 create_i2c(struct ddc_service *ddc_service, 6257 int link_index, 6258 int *res) 6259 { 6260 struct amdgpu_device *adev = ddc_service->ctx->driver_context; 6261 struct amdgpu_i2c_adapter *i2c; 6262 6263 i2c = kzalloc(sizeof(struct amdgpu_i2c_adapter), GFP_KERNEL); 6264 if (!i2c) 6265 return NULL; 6266 i2c->base.owner = THIS_MODULE; 6267 i2c->base.class = I2C_CLASS_DDC; 6268 i2c->base.dev.parent = &adev->pdev->dev; 6269 i2c->base.algo = &amdgpu_dm_i2c_algo; 6270 snprintf(i2c->base.name, sizeof(i2c->base.name), "AMDGPU DM i2c hw bus %d", link_index); 6271 i2c_set_adapdata(&i2c->base, i2c); 6272 i2c->ddc_service = ddc_service; 6273 i2c->ddc_service->ddc_pin->hw_info.ddc_channel = link_index; 6274 6275 return i2c; 6276 } 6277 6278 6279 /* 6280 * Note: this function assumes that dc_link_detect() was called for the 6281 * dc_link which will be represented by this aconnector. 6282 */ 6283 static int amdgpu_dm_connector_init(struct amdgpu_display_manager *dm, 6284 struct amdgpu_dm_connector *aconnector, 6285 uint32_t link_index, 6286 struct amdgpu_encoder *aencoder) 6287 { 6288 int res = 0; 6289 int connector_type; 6290 struct dc *dc = dm->dc; 6291 struct dc_link *link = dc_get_link_at_index(dc, link_index); 6292 struct amdgpu_i2c_adapter *i2c; 6293 6294 link->priv = aconnector; 6295 6296 DRM_DEBUG_DRIVER("%s()\n", __func__); 6297 6298 i2c = create_i2c(link->ddc, link->link_index, &res); 6299 if (!i2c) { 6300 DRM_ERROR("Failed to create i2c adapter data\n"); 6301 return -ENOMEM; 6302 } 6303 6304 aconnector->i2c = i2c; 6305 res = i2c_add_adapter(&i2c->base); 6306 6307 if (res) { 6308 DRM_ERROR("Failed to register hw i2c %d\n", link->link_index); 6309 goto out_free; 6310 } 6311 6312 connector_type = to_drm_connector_type(link->connector_signal); 6313 6314 res = drm_connector_init_with_ddc( 6315 dm->ddev, 6316 &aconnector->base, 6317 &amdgpu_dm_connector_funcs, 6318 connector_type, 6319 &i2c->base); 6320 6321 if (res) { 6322 DRM_ERROR("connector_init failed\n"); 6323 aconnector->connector_id = -1; 6324 goto out_free; 6325 } 6326 6327 drm_connector_helper_add( 6328 &aconnector->base, 6329 &amdgpu_dm_connector_helper_funcs); 6330 6331 amdgpu_dm_connector_init_helper( 6332 dm, 6333 aconnector, 6334 connector_type, 6335 link, 6336 link_index); 6337 6338 drm_connector_attach_encoder( 6339 &aconnector->base, &aencoder->base); 6340 6341 if (connector_type == DRM_MODE_CONNECTOR_DisplayPort 6342 || connector_type == DRM_MODE_CONNECTOR_eDP) 6343 amdgpu_dm_initialize_dp_connector(dm, aconnector, link->link_index); 6344 6345 out_free: 6346 if (res) { 6347 kfree(i2c); 6348 aconnector->i2c = NULL; 6349 } 6350 return res; 6351 } 6352 6353 int amdgpu_dm_get_encoder_crtc_mask(struct amdgpu_device *adev) 6354 { 6355 switch (adev->mode_info.num_crtc) { 6356 case 1: 6357 return 0x1; 6358 case 2: 6359 return 0x3; 6360 case 3: 6361 return 0x7; 6362 case 4: 6363 return 0xf; 6364 case 5: 6365 return 0x1f; 6366 case 6: 6367 default: 6368 return 0x3f; 6369 } 6370 } 6371 6372 static int amdgpu_dm_encoder_init(struct drm_device *dev, 6373 struct amdgpu_encoder *aencoder, 6374 uint32_t link_index) 6375 { 6376 struct amdgpu_device *adev = dev->dev_private; 6377 6378 int res = drm_encoder_init(dev, 6379 &aencoder->base, 6380 &amdgpu_dm_encoder_funcs, 6381 DRM_MODE_ENCODER_TMDS, 6382 NULL); 6383 6384 aencoder->base.possible_crtcs = amdgpu_dm_get_encoder_crtc_mask(adev); 6385 6386 if (!res) 6387 aencoder->encoder_id = link_index; 6388 else 6389 aencoder->encoder_id = -1; 6390 6391 drm_encoder_helper_add(&aencoder->base, &amdgpu_dm_encoder_helper_funcs); 6392 6393 return res; 6394 } 6395 6396 static void manage_dm_interrupts(struct amdgpu_device *adev, 6397 struct amdgpu_crtc *acrtc, 6398 bool enable) 6399 { 6400 /* 6401 * this is not correct translation but will work as soon as VBLANK 6402 * constant is the same as PFLIP 6403 */ 6404 int irq_type = 6405 amdgpu_display_crtc_idx_to_irq_type( 6406 adev, 6407 acrtc->crtc_id); 6408 6409 if (enable) { 6410 drm_crtc_vblank_on(&acrtc->base); 6411 amdgpu_irq_get( 6412 adev, 6413 &adev->pageflip_irq, 6414 irq_type); 6415 } else { 6416 6417 amdgpu_irq_put( 6418 adev, 6419 &adev->pageflip_irq, 6420 irq_type); 6421 drm_crtc_vblank_off(&acrtc->base); 6422 } 6423 } 6424 6425 static bool 6426 is_scaling_state_different(const struct dm_connector_state *dm_state, 6427 const struct dm_connector_state *old_dm_state) 6428 { 6429 if (dm_state->scaling != old_dm_state->scaling) 6430 return true; 6431 if (!dm_state->underscan_enable && old_dm_state->underscan_enable) { 6432 if (old_dm_state->underscan_hborder != 0 && old_dm_state->underscan_vborder != 0) 6433 return true; 6434 } else if (dm_state->underscan_enable && !old_dm_state->underscan_enable) { 6435 if (dm_state->underscan_hborder != 0 && dm_state->underscan_vborder != 0) 6436 return true; 6437 } else if (dm_state->underscan_hborder != old_dm_state->underscan_hborder || 6438 dm_state->underscan_vborder != old_dm_state->underscan_vborder) 6439 return true; 6440 return false; 6441 } 6442 6443 #ifdef CONFIG_DRM_AMD_DC_HDCP 6444 static bool is_content_protection_different(struct drm_connector_state *state, 6445 const struct drm_connector_state *old_state, 6446 const struct drm_connector *connector, struct hdcp_workqueue *hdcp_w) 6447 { 6448 struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector); 6449 6450 if (old_state->hdcp_content_type != state->hdcp_content_type && 6451 state->content_protection != DRM_MODE_CONTENT_PROTECTION_UNDESIRED) { 6452 state->content_protection = DRM_MODE_CONTENT_PROTECTION_DESIRED; 6453 return true; 6454 } 6455 6456 /* CP is being re enabled, ignore this */ 6457 if (old_state->content_protection == DRM_MODE_CONTENT_PROTECTION_ENABLED && 6458 state->content_protection == DRM_MODE_CONTENT_PROTECTION_DESIRED) { 6459 state->content_protection = DRM_MODE_CONTENT_PROTECTION_ENABLED; 6460 return false; 6461 } 6462 6463 /* S3 resume case, since old state will always be 0 (UNDESIRED) and the restored state will be ENABLED */ 6464 if (old_state->content_protection == DRM_MODE_CONTENT_PROTECTION_UNDESIRED && 6465 state->content_protection == DRM_MODE_CONTENT_PROTECTION_ENABLED) 6466 state->content_protection = DRM_MODE_CONTENT_PROTECTION_DESIRED; 6467 6468 /* Check if something is connected/enabled, otherwise we start hdcp but nothing is connected/enabled 6469 * hot-plug, headless s3, dpms 6470 */ 6471 if (state->content_protection == DRM_MODE_CONTENT_PROTECTION_DESIRED && connector->dpms == DRM_MODE_DPMS_ON && 6472 aconnector->dc_sink != NULL) 6473 return true; 6474 6475 if (old_state->content_protection == state->content_protection) 6476 return false; 6477 6478 if (state->content_protection == DRM_MODE_CONTENT_PROTECTION_UNDESIRED) 6479 return true; 6480 6481 return false; 6482 } 6483 6484 #endif 6485 static void remove_stream(struct amdgpu_device *adev, 6486 struct amdgpu_crtc *acrtc, 6487 struct dc_stream_state *stream) 6488 { 6489 /* this is the update mode case */ 6490 6491 acrtc->otg_inst = -1; 6492 acrtc->enabled = false; 6493 } 6494 6495 static int get_cursor_position(struct drm_plane *plane, struct drm_crtc *crtc, 6496 struct dc_cursor_position *position) 6497 { 6498 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); 6499 int x, y; 6500 int xorigin = 0, yorigin = 0; 6501 6502 position->enable = false; 6503 position->x = 0; 6504 position->y = 0; 6505 6506 if (!crtc || !plane->state->fb) 6507 return 0; 6508 6509 if ((plane->state->crtc_w > amdgpu_crtc->max_cursor_width) || 6510 (plane->state->crtc_h > amdgpu_crtc->max_cursor_height)) { 6511 DRM_ERROR("%s: bad cursor width or height %d x %d\n", 6512 __func__, 6513 plane->state->crtc_w, 6514 plane->state->crtc_h); 6515 return -EINVAL; 6516 } 6517 6518 x = plane->state->crtc_x; 6519 y = plane->state->crtc_y; 6520 6521 if (x <= -amdgpu_crtc->max_cursor_width || 6522 y <= -amdgpu_crtc->max_cursor_height) 6523 return 0; 6524 6525 if (x < 0) { 6526 xorigin = min(-x, amdgpu_crtc->max_cursor_width - 1); 6527 x = 0; 6528 } 6529 if (y < 0) { 6530 yorigin = min(-y, amdgpu_crtc->max_cursor_height - 1); 6531 y = 0; 6532 } 6533 position->enable = true; 6534 position->translate_by_source = true; 6535 position->x = x; 6536 position->y = y; 6537 position->x_hotspot = xorigin; 6538 position->y_hotspot = yorigin; 6539 6540 return 0; 6541 } 6542 6543 static void handle_cursor_update(struct drm_plane *plane, 6544 struct drm_plane_state *old_plane_state) 6545 { 6546 struct amdgpu_device *adev = plane->dev->dev_private; 6547 struct amdgpu_framebuffer *afb = to_amdgpu_framebuffer(plane->state->fb); 6548 struct drm_crtc *crtc = afb ? plane->state->crtc : old_plane_state->crtc; 6549 struct dm_crtc_state *crtc_state = crtc ? to_dm_crtc_state(crtc->state) : NULL; 6550 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); 6551 uint64_t address = afb ? afb->address : 0; 6552 struct dc_cursor_position position; 6553 struct dc_cursor_attributes attributes; 6554 int ret; 6555 6556 if (!plane->state->fb && !old_plane_state->fb) 6557 return; 6558 6559 DRM_DEBUG_DRIVER("%s: crtc_id=%d with size %d to %d\n", 6560 __func__, 6561 amdgpu_crtc->crtc_id, 6562 plane->state->crtc_w, 6563 plane->state->crtc_h); 6564 6565 ret = get_cursor_position(plane, crtc, &position); 6566 if (ret) 6567 return; 6568 6569 if (!position.enable) { 6570 /* turn off cursor */ 6571 if (crtc_state && crtc_state->stream) { 6572 mutex_lock(&adev->dm.dc_lock); 6573 dc_stream_set_cursor_position(crtc_state->stream, 6574 &position); 6575 mutex_unlock(&adev->dm.dc_lock); 6576 } 6577 return; 6578 } 6579 6580 amdgpu_crtc->cursor_width = plane->state->crtc_w; 6581 amdgpu_crtc->cursor_height = plane->state->crtc_h; 6582 6583 memset(&attributes, 0, sizeof(attributes)); 6584 attributes.address.high_part = upper_32_bits(address); 6585 attributes.address.low_part = lower_32_bits(address); 6586 attributes.width = plane->state->crtc_w; 6587 attributes.height = plane->state->crtc_h; 6588 attributes.color_format = CURSOR_MODE_COLOR_PRE_MULTIPLIED_ALPHA; 6589 attributes.rotation_angle = 0; 6590 attributes.attribute_flags.value = 0; 6591 6592 attributes.pitch = attributes.width; 6593 6594 if (crtc_state->stream) { 6595 mutex_lock(&adev->dm.dc_lock); 6596 if (!dc_stream_set_cursor_attributes(crtc_state->stream, 6597 &attributes)) 6598 DRM_ERROR("DC failed to set cursor attributes\n"); 6599 6600 if (!dc_stream_set_cursor_position(crtc_state->stream, 6601 &position)) 6602 DRM_ERROR("DC failed to set cursor position\n"); 6603 mutex_unlock(&adev->dm.dc_lock); 6604 } 6605 } 6606 6607 static void prepare_flip_isr(struct amdgpu_crtc *acrtc) 6608 { 6609 6610 assert_spin_locked(&acrtc->base.dev->event_lock); 6611 WARN_ON(acrtc->event); 6612 6613 acrtc->event = acrtc->base.state->event; 6614 6615 /* Set the flip status */ 6616 acrtc->pflip_status = AMDGPU_FLIP_SUBMITTED; 6617 6618 /* Mark this event as consumed */ 6619 acrtc->base.state->event = NULL; 6620 6621 DRM_DEBUG_DRIVER("crtc:%d, pflip_stat:AMDGPU_FLIP_SUBMITTED\n", 6622 acrtc->crtc_id); 6623 } 6624 6625 static void update_freesync_state_on_stream( 6626 struct amdgpu_display_manager *dm, 6627 struct dm_crtc_state *new_crtc_state, 6628 struct dc_stream_state *new_stream, 6629 struct dc_plane_state *surface, 6630 u32 flip_timestamp_in_us) 6631 { 6632 struct mod_vrr_params vrr_params; 6633 struct dc_info_packet vrr_infopacket = {0}; 6634 struct amdgpu_device *adev = dm->adev; 6635 unsigned long flags; 6636 6637 if (!new_stream) 6638 return; 6639 6640 /* 6641 * TODO: Determine why min/max totals and vrefresh can be 0 here. 6642 * For now it's sufficient to just guard against these conditions. 6643 */ 6644 6645 if (!new_stream->timing.h_total || !new_stream->timing.v_total) 6646 return; 6647 6648 spin_lock_irqsave(&adev->ddev->event_lock, flags); 6649 vrr_params = new_crtc_state->vrr_params; 6650 6651 if (surface) { 6652 mod_freesync_handle_preflip( 6653 dm->freesync_module, 6654 surface, 6655 new_stream, 6656 flip_timestamp_in_us, 6657 &vrr_params); 6658 6659 if (adev->family < AMDGPU_FAMILY_AI && 6660 amdgpu_dm_vrr_active(new_crtc_state)) { 6661 mod_freesync_handle_v_update(dm->freesync_module, 6662 new_stream, &vrr_params); 6663 6664 /* Need to call this before the frame ends. */ 6665 dc_stream_adjust_vmin_vmax(dm->dc, 6666 new_crtc_state->stream, 6667 &vrr_params.adjust); 6668 } 6669 } 6670 6671 mod_freesync_build_vrr_infopacket( 6672 dm->freesync_module, 6673 new_stream, 6674 &vrr_params, 6675 PACKET_TYPE_VRR, 6676 TRANSFER_FUNC_UNKNOWN, 6677 &vrr_infopacket); 6678 6679 new_crtc_state->freesync_timing_changed |= 6680 (memcmp(&new_crtc_state->vrr_params.adjust, 6681 &vrr_params.adjust, 6682 sizeof(vrr_params.adjust)) != 0); 6683 6684 new_crtc_state->freesync_vrr_info_changed |= 6685 (memcmp(&new_crtc_state->vrr_infopacket, 6686 &vrr_infopacket, 6687 sizeof(vrr_infopacket)) != 0); 6688 6689 new_crtc_state->vrr_params = vrr_params; 6690 new_crtc_state->vrr_infopacket = vrr_infopacket; 6691 6692 new_stream->adjust = new_crtc_state->vrr_params.adjust; 6693 new_stream->vrr_infopacket = vrr_infopacket; 6694 6695 if (new_crtc_state->freesync_vrr_info_changed) 6696 DRM_DEBUG_KMS("VRR packet update: crtc=%u enabled=%d state=%d", 6697 new_crtc_state->base.crtc->base.id, 6698 (int)new_crtc_state->base.vrr_enabled, 6699 (int)vrr_params.state); 6700 6701 spin_unlock_irqrestore(&adev->ddev->event_lock, flags); 6702 } 6703 6704 static void pre_update_freesync_state_on_stream( 6705 struct amdgpu_display_manager *dm, 6706 struct dm_crtc_state *new_crtc_state) 6707 { 6708 struct dc_stream_state *new_stream = new_crtc_state->stream; 6709 struct mod_vrr_params vrr_params; 6710 struct mod_freesync_config config = new_crtc_state->freesync_config; 6711 struct amdgpu_device *adev = dm->adev; 6712 unsigned long flags; 6713 6714 if (!new_stream) 6715 return; 6716 6717 /* 6718 * TODO: Determine why min/max totals and vrefresh can be 0 here. 6719 * For now it's sufficient to just guard against these conditions. 6720 */ 6721 if (!new_stream->timing.h_total || !new_stream->timing.v_total) 6722 return; 6723 6724 spin_lock_irqsave(&adev->ddev->event_lock, flags); 6725 vrr_params = new_crtc_state->vrr_params; 6726 6727 if (new_crtc_state->vrr_supported && 6728 config.min_refresh_in_uhz && 6729 config.max_refresh_in_uhz) { 6730 config.state = new_crtc_state->base.vrr_enabled ? 6731 VRR_STATE_ACTIVE_VARIABLE : 6732 VRR_STATE_INACTIVE; 6733 } else { 6734 config.state = VRR_STATE_UNSUPPORTED; 6735 } 6736 6737 mod_freesync_build_vrr_params(dm->freesync_module, 6738 new_stream, 6739 &config, &vrr_params); 6740 6741 new_crtc_state->freesync_timing_changed |= 6742 (memcmp(&new_crtc_state->vrr_params.adjust, 6743 &vrr_params.adjust, 6744 sizeof(vrr_params.adjust)) != 0); 6745 6746 new_crtc_state->vrr_params = vrr_params; 6747 spin_unlock_irqrestore(&adev->ddev->event_lock, flags); 6748 } 6749 6750 static void amdgpu_dm_handle_vrr_transition(struct dm_crtc_state *old_state, 6751 struct dm_crtc_state *new_state) 6752 { 6753 bool old_vrr_active = amdgpu_dm_vrr_active(old_state); 6754 bool new_vrr_active = amdgpu_dm_vrr_active(new_state); 6755 6756 if (!old_vrr_active && new_vrr_active) { 6757 /* Transition VRR inactive -> active: 6758 * While VRR is active, we must not disable vblank irq, as a 6759 * reenable after disable would compute bogus vblank/pflip 6760 * timestamps if it likely happened inside display front-porch. 6761 * 6762 * We also need vupdate irq for the actual core vblank handling 6763 * at end of vblank. 6764 */ 6765 dm_set_vupdate_irq(new_state->base.crtc, true); 6766 drm_crtc_vblank_get(new_state->base.crtc); 6767 DRM_DEBUG_DRIVER("%s: crtc=%u VRR off->on: Get vblank ref\n", 6768 __func__, new_state->base.crtc->base.id); 6769 } else if (old_vrr_active && !new_vrr_active) { 6770 /* Transition VRR active -> inactive: 6771 * Allow vblank irq disable again for fixed refresh rate. 6772 */ 6773 dm_set_vupdate_irq(new_state->base.crtc, false); 6774 drm_crtc_vblank_put(new_state->base.crtc); 6775 DRM_DEBUG_DRIVER("%s: crtc=%u VRR on->off: Drop vblank ref\n", 6776 __func__, new_state->base.crtc->base.id); 6777 } 6778 } 6779 6780 static void amdgpu_dm_commit_cursors(struct drm_atomic_state *state) 6781 { 6782 struct drm_plane *plane; 6783 struct drm_plane_state *old_plane_state, *new_plane_state; 6784 int i; 6785 6786 /* 6787 * TODO: Make this per-stream so we don't issue redundant updates for 6788 * commits with multiple streams. 6789 */ 6790 for_each_oldnew_plane_in_state(state, plane, old_plane_state, 6791 new_plane_state, i) 6792 if (plane->type == DRM_PLANE_TYPE_CURSOR) 6793 handle_cursor_update(plane, old_plane_state); 6794 } 6795 6796 static void amdgpu_dm_commit_planes(struct drm_atomic_state *state, 6797 struct dc_state *dc_state, 6798 struct drm_device *dev, 6799 struct amdgpu_display_manager *dm, 6800 struct drm_crtc *pcrtc, 6801 bool wait_for_vblank) 6802 { 6803 uint32_t i; 6804 uint64_t timestamp_ns; 6805 struct drm_plane *plane; 6806 struct drm_plane_state *old_plane_state, *new_plane_state; 6807 struct amdgpu_crtc *acrtc_attach = to_amdgpu_crtc(pcrtc); 6808 struct drm_crtc_state *new_pcrtc_state = 6809 drm_atomic_get_new_crtc_state(state, pcrtc); 6810 struct dm_crtc_state *acrtc_state = to_dm_crtc_state(new_pcrtc_state); 6811 struct dm_crtc_state *dm_old_crtc_state = 6812 to_dm_crtc_state(drm_atomic_get_old_crtc_state(state, pcrtc)); 6813 int planes_count = 0, vpos, hpos; 6814 long r; 6815 unsigned long flags; 6816 struct amdgpu_bo *abo; 6817 uint64_t tiling_flags; 6818 bool tmz_surface = false; 6819 uint32_t target_vblank, last_flip_vblank; 6820 bool vrr_active = amdgpu_dm_vrr_active(acrtc_state); 6821 bool pflip_present = false; 6822 struct { 6823 struct dc_surface_update surface_updates[MAX_SURFACES]; 6824 struct dc_plane_info plane_infos[MAX_SURFACES]; 6825 struct dc_scaling_info scaling_infos[MAX_SURFACES]; 6826 struct dc_flip_addrs flip_addrs[MAX_SURFACES]; 6827 struct dc_stream_update stream_update; 6828 } *bundle; 6829 6830 bundle = kzalloc(sizeof(*bundle), GFP_KERNEL); 6831 6832 if (!bundle) { 6833 dm_error("Failed to allocate update bundle\n"); 6834 goto cleanup; 6835 } 6836 6837 /* 6838 * Disable the cursor first if we're disabling all the planes. 6839 * It'll remain on the screen after the planes are re-enabled 6840 * if we don't. 6841 */ 6842 if (acrtc_state->active_planes == 0) 6843 amdgpu_dm_commit_cursors(state); 6844 6845 /* update planes when needed */ 6846 for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, i) { 6847 struct drm_crtc *crtc = new_plane_state->crtc; 6848 struct drm_crtc_state *new_crtc_state; 6849 struct drm_framebuffer *fb = new_plane_state->fb; 6850 bool plane_needs_flip; 6851 struct dc_plane_state *dc_plane; 6852 struct dm_plane_state *dm_new_plane_state = to_dm_plane_state(new_plane_state); 6853 6854 /* Cursor plane is handled after stream updates */ 6855 if (plane->type == DRM_PLANE_TYPE_CURSOR) 6856 continue; 6857 6858 if (!fb || !crtc || pcrtc != crtc) 6859 continue; 6860 6861 new_crtc_state = drm_atomic_get_new_crtc_state(state, crtc); 6862 if (!new_crtc_state->active) 6863 continue; 6864 6865 dc_plane = dm_new_plane_state->dc_state; 6866 6867 bundle->surface_updates[planes_count].surface = dc_plane; 6868 if (new_pcrtc_state->color_mgmt_changed) { 6869 bundle->surface_updates[planes_count].gamma = dc_plane->gamma_correction; 6870 bundle->surface_updates[planes_count].in_transfer_func = dc_plane->in_transfer_func; 6871 bundle->surface_updates[planes_count].gamut_remap_matrix = &dc_plane->gamut_remap_matrix; 6872 } 6873 6874 fill_dc_scaling_info(new_plane_state, 6875 &bundle->scaling_infos[planes_count]); 6876 6877 bundle->surface_updates[planes_count].scaling_info = 6878 &bundle->scaling_infos[planes_count]; 6879 6880 plane_needs_flip = old_plane_state->fb && new_plane_state->fb; 6881 6882 pflip_present = pflip_present || plane_needs_flip; 6883 6884 if (!plane_needs_flip) { 6885 planes_count += 1; 6886 continue; 6887 } 6888 6889 abo = gem_to_amdgpu_bo(fb->obj[0]); 6890 6891 /* 6892 * Wait for all fences on this FB. Do limited wait to avoid 6893 * deadlock during GPU reset when this fence will not signal 6894 * but we hold reservation lock for the BO. 6895 */ 6896 r = dma_resv_wait_timeout_rcu(abo->tbo.base.resv, true, 6897 false, 6898 msecs_to_jiffies(5000)); 6899 if (unlikely(r <= 0)) 6900 DRM_ERROR("Waiting for fences timed out!"); 6901 6902 /* 6903 * TODO This might fail and hence better not used, wait 6904 * explicitly on fences instead 6905 * and in general should be called for 6906 * blocking commit to as per framework helpers 6907 */ 6908 r = amdgpu_bo_reserve(abo, true); 6909 if (unlikely(r != 0)) 6910 DRM_ERROR("failed to reserve buffer before flip\n"); 6911 6912 amdgpu_bo_get_tiling_flags(abo, &tiling_flags); 6913 6914 tmz_surface = amdgpu_bo_encrypted(abo); 6915 6916 amdgpu_bo_unreserve(abo); 6917 6918 fill_dc_plane_info_and_addr( 6919 dm->adev, new_plane_state, tiling_flags, 6920 &bundle->plane_infos[planes_count], 6921 &bundle->flip_addrs[planes_count].address, 6922 tmz_surface, 6923 false); 6924 6925 DRM_DEBUG_DRIVER("plane: id=%d dcc_en=%d\n", 6926 new_plane_state->plane->index, 6927 bundle->plane_infos[planes_count].dcc.enable); 6928 6929 bundle->surface_updates[planes_count].plane_info = 6930 &bundle->plane_infos[planes_count]; 6931 6932 /* 6933 * Only allow immediate flips for fast updates that don't 6934 * change FB pitch, DCC state, rotation or mirroing. 6935 */ 6936 bundle->flip_addrs[planes_count].flip_immediate = 6937 crtc->state->async_flip && 6938 acrtc_state->update_type == UPDATE_TYPE_FAST; 6939 6940 timestamp_ns = ktime_get_ns(); 6941 bundle->flip_addrs[planes_count].flip_timestamp_in_us = div_u64(timestamp_ns, 1000); 6942 bundle->surface_updates[planes_count].flip_addr = &bundle->flip_addrs[planes_count]; 6943 bundle->surface_updates[planes_count].surface = dc_plane; 6944 6945 if (!bundle->surface_updates[planes_count].surface) { 6946 DRM_ERROR("No surface for CRTC: id=%d\n", 6947 acrtc_attach->crtc_id); 6948 continue; 6949 } 6950 6951 if (plane == pcrtc->primary) 6952 update_freesync_state_on_stream( 6953 dm, 6954 acrtc_state, 6955 acrtc_state->stream, 6956 dc_plane, 6957 bundle->flip_addrs[planes_count].flip_timestamp_in_us); 6958 6959 DRM_DEBUG_DRIVER("%s Flipping to hi: 0x%x, low: 0x%x\n", 6960 __func__, 6961 bundle->flip_addrs[planes_count].address.grph.addr.high_part, 6962 bundle->flip_addrs[planes_count].address.grph.addr.low_part); 6963 6964 planes_count += 1; 6965 6966 } 6967 6968 if (pflip_present) { 6969 if (!vrr_active) { 6970 /* Use old throttling in non-vrr fixed refresh rate mode 6971 * to keep flip scheduling based on target vblank counts 6972 * working in a backwards compatible way, e.g., for 6973 * clients using the GLX_OML_sync_control extension or 6974 * DRI3/Present extension with defined target_msc. 6975 */ 6976 last_flip_vblank = amdgpu_get_vblank_counter_kms(pcrtc); 6977 } 6978 else { 6979 /* For variable refresh rate mode only: 6980 * Get vblank of last completed flip to avoid > 1 vrr 6981 * flips per video frame by use of throttling, but allow 6982 * flip programming anywhere in the possibly large 6983 * variable vrr vblank interval for fine-grained flip 6984 * timing control and more opportunity to avoid stutter 6985 * on late submission of flips. 6986 */ 6987 spin_lock_irqsave(&pcrtc->dev->event_lock, flags); 6988 last_flip_vblank = acrtc_attach->last_flip_vblank; 6989 spin_unlock_irqrestore(&pcrtc->dev->event_lock, flags); 6990 } 6991 6992 target_vblank = last_flip_vblank + wait_for_vblank; 6993 6994 /* 6995 * Wait until we're out of the vertical blank period before the one 6996 * targeted by the flip 6997 */ 6998 while ((acrtc_attach->enabled && 6999 (amdgpu_display_get_crtc_scanoutpos(dm->ddev, acrtc_attach->crtc_id, 7000 0, &vpos, &hpos, NULL, 7001 NULL, &pcrtc->hwmode) 7002 & (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_IN_VBLANK)) == 7003 (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_IN_VBLANK) && 7004 (int)(target_vblank - 7005 amdgpu_get_vblank_counter_kms(pcrtc)) > 0)) { 7006 usleep_range(1000, 1100); 7007 } 7008 7009 if (acrtc_attach->base.state->event) { 7010 drm_crtc_vblank_get(pcrtc); 7011 7012 spin_lock_irqsave(&pcrtc->dev->event_lock, flags); 7013 7014 WARN_ON(acrtc_attach->pflip_status != AMDGPU_FLIP_NONE); 7015 prepare_flip_isr(acrtc_attach); 7016 7017 spin_unlock_irqrestore(&pcrtc->dev->event_lock, flags); 7018 } 7019 7020 if (acrtc_state->stream) { 7021 if (acrtc_state->freesync_vrr_info_changed) 7022 bundle->stream_update.vrr_infopacket = 7023 &acrtc_state->stream->vrr_infopacket; 7024 } 7025 } 7026 7027 /* Update the planes if changed or disable if we don't have any. */ 7028 if ((planes_count || acrtc_state->active_planes == 0) && 7029 acrtc_state->stream) { 7030 bundle->stream_update.stream = acrtc_state->stream; 7031 if (new_pcrtc_state->mode_changed) { 7032 bundle->stream_update.src = acrtc_state->stream->src; 7033 bundle->stream_update.dst = acrtc_state->stream->dst; 7034 } 7035 7036 if (new_pcrtc_state->color_mgmt_changed) { 7037 /* 7038 * TODO: This isn't fully correct since we've actually 7039 * already modified the stream in place. 7040 */ 7041 bundle->stream_update.gamut_remap = 7042 &acrtc_state->stream->gamut_remap_matrix; 7043 bundle->stream_update.output_csc_transform = 7044 &acrtc_state->stream->csc_color_matrix; 7045 bundle->stream_update.out_transfer_func = 7046 acrtc_state->stream->out_transfer_func; 7047 } 7048 7049 acrtc_state->stream->abm_level = acrtc_state->abm_level; 7050 if (acrtc_state->abm_level != dm_old_crtc_state->abm_level) 7051 bundle->stream_update.abm_level = &acrtc_state->abm_level; 7052 7053 /* 7054 * If FreeSync state on the stream has changed then we need to 7055 * re-adjust the min/max bounds now that DC doesn't handle this 7056 * as part of commit. 7057 */ 7058 if (amdgpu_dm_vrr_active(dm_old_crtc_state) != 7059 amdgpu_dm_vrr_active(acrtc_state)) { 7060 spin_lock_irqsave(&pcrtc->dev->event_lock, flags); 7061 dc_stream_adjust_vmin_vmax( 7062 dm->dc, acrtc_state->stream, 7063 &acrtc_state->vrr_params.adjust); 7064 spin_unlock_irqrestore(&pcrtc->dev->event_lock, flags); 7065 } 7066 mutex_lock(&dm->dc_lock); 7067 if ((acrtc_state->update_type > UPDATE_TYPE_FAST) && 7068 acrtc_state->stream->link->psr_settings.psr_allow_active) 7069 amdgpu_dm_psr_disable(acrtc_state->stream); 7070 7071 dc_commit_updates_for_stream(dm->dc, 7072 bundle->surface_updates, 7073 planes_count, 7074 acrtc_state->stream, 7075 &bundle->stream_update, 7076 dc_state); 7077 7078 if ((acrtc_state->update_type > UPDATE_TYPE_FAST) && 7079 acrtc_state->stream->link->psr_settings.psr_version != DC_PSR_VERSION_UNSUPPORTED && 7080 !acrtc_state->stream->link->psr_settings.psr_feature_enabled) 7081 amdgpu_dm_link_setup_psr(acrtc_state->stream); 7082 else if ((acrtc_state->update_type == UPDATE_TYPE_FAST) && 7083 acrtc_state->stream->link->psr_settings.psr_feature_enabled && 7084 !acrtc_state->stream->link->psr_settings.psr_allow_active) { 7085 amdgpu_dm_psr_enable(acrtc_state->stream); 7086 } 7087 7088 mutex_unlock(&dm->dc_lock); 7089 } 7090 7091 /* 7092 * Update cursor state *after* programming all the planes. 7093 * This avoids redundant programming in the case where we're going 7094 * to be disabling a single plane - those pipes are being disabled. 7095 */ 7096 if (acrtc_state->active_planes) 7097 amdgpu_dm_commit_cursors(state); 7098 7099 cleanup: 7100 kfree(bundle); 7101 } 7102 7103 static void amdgpu_dm_commit_audio(struct drm_device *dev, 7104 struct drm_atomic_state *state) 7105 { 7106 struct amdgpu_device *adev = dev->dev_private; 7107 struct amdgpu_dm_connector *aconnector; 7108 struct drm_connector *connector; 7109 struct drm_connector_state *old_con_state, *new_con_state; 7110 struct drm_crtc_state *new_crtc_state; 7111 struct dm_crtc_state *new_dm_crtc_state; 7112 const struct dc_stream_status *status; 7113 int i, inst; 7114 7115 /* Notify device removals. */ 7116 for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) { 7117 if (old_con_state->crtc != new_con_state->crtc) { 7118 /* CRTC changes require notification. */ 7119 goto notify; 7120 } 7121 7122 if (!new_con_state->crtc) 7123 continue; 7124 7125 new_crtc_state = drm_atomic_get_new_crtc_state( 7126 state, new_con_state->crtc); 7127 7128 if (!new_crtc_state) 7129 continue; 7130 7131 if (!drm_atomic_crtc_needs_modeset(new_crtc_state)) 7132 continue; 7133 7134 notify: 7135 aconnector = to_amdgpu_dm_connector(connector); 7136 7137 mutex_lock(&adev->dm.audio_lock); 7138 inst = aconnector->audio_inst; 7139 aconnector->audio_inst = -1; 7140 mutex_unlock(&adev->dm.audio_lock); 7141 7142 amdgpu_dm_audio_eld_notify(adev, inst); 7143 } 7144 7145 /* Notify audio device additions. */ 7146 for_each_new_connector_in_state(state, connector, new_con_state, i) { 7147 if (!new_con_state->crtc) 7148 continue; 7149 7150 new_crtc_state = drm_atomic_get_new_crtc_state( 7151 state, new_con_state->crtc); 7152 7153 if (!new_crtc_state) 7154 continue; 7155 7156 if (!drm_atomic_crtc_needs_modeset(new_crtc_state)) 7157 continue; 7158 7159 new_dm_crtc_state = to_dm_crtc_state(new_crtc_state); 7160 if (!new_dm_crtc_state->stream) 7161 continue; 7162 7163 status = dc_stream_get_status(new_dm_crtc_state->stream); 7164 if (!status) 7165 continue; 7166 7167 aconnector = to_amdgpu_dm_connector(connector); 7168 7169 mutex_lock(&adev->dm.audio_lock); 7170 inst = status->audio_inst; 7171 aconnector->audio_inst = inst; 7172 mutex_unlock(&adev->dm.audio_lock); 7173 7174 amdgpu_dm_audio_eld_notify(adev, inst); 7175 } 7176 } 7177 7178 /* 7179 * Enable interrupts on CRTCs that are newly active, undergone 7180 * a modeset, or have active planes again. 7181 * 7182 * Done in two passes, based on the for_modeset flag: 7183 * Pass 1: For CRTCs going through modeset 7184 * Pass 2: For CRTCs going from 0 to n active planes 7185 * 7186 * Interrupts can only be enabled after the planes are programmed, 7187 * so this requires a two-pass approach since we don't want to 7188 * just defer the interrupts until after commit planes every time. 7189 */ 7190 static void amdgpu_dm_enable_crtc_interrupts(struct drm_device *dev, 7191 struct drm_atomic_state *state, 7192 bool for_modeset) 7193 { 7194 struct amdgpu_device *adev = dev->dev_private; 7195 struct drm_crtc *crtc; 7196 struct drm_crtc_state *old_crtc_state, *new_crtc_state; 7197 int i; 7198 #ifdef CONFIG_DEBUG_FS 7199 enum amdgpu_dm_pipe_crc_source source; 7200 #endif 7201 7202 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, 7203 new_crtc_state, i) { 7204 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc); 7205 struct dm_crtc_state *dm_new_crtc_state = 7206 to_dm_crtc_state(new_crtc_state); 7207 struct dm_crtc_state *dm_old_crtc_state = 7208 to_dm_crtc_state(old_crtc_state); 7209 bool modeset = drm_atomic_crtc_needs_modeset(new_crtc_state); 7210 bool run_pass; 7211 7212 run_pass = (for_modeset && modeset) || 7213 (!for_modeset && !modeset && 7214 !dm_old_crtc_state->interrupts_enabled); 7215 7216 if (!run_pass) 7217 continue; 7218 7219 if (!dm_new_crtc_state->interrupts_enabled) 7220 continue; 7221 7222 manage_dm_interrupts(adev, acrtc, true); 7223 7224 #ifdef CONFIG_DEBUG_FS 7225 /* The stream has changed so CRC capture needs to re-enabled. */ 7226 source = dm_new_crtc_state->crc_src; 7227 if (amdgpu_dm_is_valid_crc_source(source)) { 7228 amdgpu_dm_crtc_configure_crc_source( 7229 crtc, dm_new_crtc_state, 7230 dm_new_crtc_state->crc_src); 7231 } 7232 #endif 7233 } 7234 } 7235 7236 /* 7237 * amdgpu_dm_crtc_copy_transient_flags - copy mirrored flags from DRM to DC 7238 * @crtc_state: the DRM CRTC state 7239 * @stream_state: the DC stream state. 7240 * 7241 * Copy the mirrored transient state flags from DRM, to DC. It is used to bring 7242 * a dc_stream_state's flags in sync with a drm_crtc_state's flags. 7243 */ 7244 static void amdgpu_dm_crtc_copy_transient_flags(struct drm_crtc_state *crtc_state, 7245 struct dc_stream_state *stream_state) 7246 { 7247 stream_state->mode_changed = drm_atomic_crtc_needs_modeset(crtc_state); 7248 } 7249 7250 static int amdgpu_dm_atomic_commit(struct drm_device *dev, 7251 struct drm_atomic_state *state, 7252 bool nonblock) 7253 { 7254 struct drm_crtc *crtc; 7255 struct drm_crtc_state *old_crtc_state, *new_crtc_state; 7256 struct amdgpu_device *adev = dev->dev_private; 7257 int i; 7258 7259 /* 7260 * We evade vblank and pflip interrupts on CRTCs that are undergoing 7261 * a modeset, being disabled, or have no active planes. 7262 * 7263 * It's done in atomic commit rather than commit tail for now since 7264 * some of these interrupt handlers access the current CRTC state and 7265 * potentially the stream pointer itself. 7266 * 7267 * Since the atomic state is swapped within atomic commit and not within 7268 * commit tail this would leave to new state (that hasn't been committed yet) 7269 * being accesssed from within the handlers. 7270 * 7271 * TODO: Fix this so we can do this in commit tail and not have to block 7272 * in atomic check. 7273 */ 7274 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { 7275 struct dm_crtc_state *dm_old_crtc_state = to_dm_crtc_state(old_crtc_state); 7276 struct dm_crtc_state *dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); 7277 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc); 7278 7279 if (dm_old_crtc_state->interrupts_enabled && 7280 (!dm_new_crtc_state->interrupts_enabled || 7281 drm_atomic_crtc_needs_modeset(new_crtc_state))) 7282 manage_dm_interrupts(adev, acrtc, false); 7283 } 7284 /* 7285 * Add check here for SoC's that support hardware cursor plane, to 7286 * unset legacy_cursor_update 7287 */ 7288 7289 return drm_atomic_helper_commit(dev, state, nonblock); 7290 7291 /*TODO Handle EINTR, reenable IRQ*/ 7292 } 7293 7294 /** 7295 * amdgpu_dm_atomic_commit_tail() - AMDgpu DM's commit tail implementation. 7296 * @state: The atomic state to commit 7297 * 7298 * This will tell DC to commit the constructed DC state from atomic_check, 7299 * programming the hardware. Any failures here implies a hardware failure, since 7300 * atomic check should have filtered anything non-kosher. 7301 */ 7302 static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state) 7303 { 7304 struct drm_device *dev = state->dev; 7305 struct amdgpu_device *adev = dev->dev_private; 7306 struct amdgpu_display_manager *dm = &adev->dm; 7307 struct dm_atomic_state *dm_state; 7308 struct dc_state *dc_state = NULL, *dc_state_temp = NULL; 7309 uint32_t i, j; 7310 struct drm_crtc *crtc; 7311 struct drm_crtc_state *old_crtc_state, *new_crtc_state; 7312 unsigned long flags; 7313 bool wait_for_vblank = true; 7314 struct drm_connector *connector; 7315 struct drm_connector_state *old_con_state, *new_con_state; 7316 struct dm_crtc_state *dm_old_crtc_state, *dm_new_crtc_state; 7317 int crtc_disable_count = 0; 7318 7319 drm_atomic_helper_update_legacy_modeset_state(dev, state); 7320 7321 dm_state = dm_atomic_get_new_state(state); 7322 if (dm_state && dm_state->context) { 7323 dc_state = dm_state->context; 7324 } else { 7325 /* No state changes, retain current state. */ 7326 dc_state_temp = dc_create_state(dm->dc); 7327 ASSERT(dc_state_temp); 7328 dc_state = dc_state_temp; 7329 dc_resource_state_copy_construct_current(dm->dc, dc_state); 7330 } 7331 7332 /* update changed items */ 7333 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { 7334 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc); 7335 7336 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); 7337 dm_old_crtc_state = to_dm_crtc_state(old_crtc_state); 7338 7339 DRM_DEBUG_DRIVER( 7340 "amdgpu_crtc id:%d crtc_state_flags: enable:%d, active:%d, " 7341 "planes_changed:%d, mode_changed:%d,active_changed:%d," 7342 "connectors_changed:%d\n", 7343 acrtc->crtc_id, 7344 new_crtc_state->enable, 7345 new_crtc_state->active, 7346 new_crtc_state->planes_changed, 7347 new_crtc_state->mode_changed, 7348 new_crtc_state->active_changed, 7349 new_crtc_state->connectors_changed); 7350 7351 /* Copy all transient state flags into dc state */ 7352 if (dm_new_crtc_state->stream) { 7353 amdgpu_dm_crtc_copy_transient_flags(&dm_new_crtc_state->base, 7354 dm_new_crtc_state->stream); 7355 } 7356 7357 /* handles headless hotplug case, updating new_state and 7358 * aconnector as needed 7359 */ 7360 7361 if (modeset_required(new_crtc_state, dm_new_crtc_state->stream, dm_old_crtc_state->stream)) { 7362 7363 DRM_DEBUG_DRIVER("Atomic commit: SET crtc id %d: [%p]\n", acrtc->crtc_id, acrtc); 7364 7365 if (!dm_new_crtc_state->stream) { 7366 /* 7367 * this could happen because of issues with 7368 * userspace notifications delivery. 7369 * In this case userspace tries to set mode on 7370 * display which is disconnected in fact. 7371 * dc_sink is NULL in this case on aconnector. 7372 * We expect reset mode will come soon. 7373 * 7374 * This can also happen when unplug is done 7375 * during resume sequence ended 7376 * 7377 * In this case, we want to pretend we still 7378 * have a sink to keep the pipe running so that 7379 * hw state is consistent with the sw state 7380 */ 7381 DRM_DEBUG_DRIVER("%s: Failed to create new stream for crtc %d\n", 7382 __func__, acrtc->base.base.id); 7383 continue; 7384 } 7385 7386 if (dm_old_crtc_state->stream) 7387 remove_stream(adev, acrtc, dm_old_crtc_state->stream); 7388 7389 pm_runtime_get_noresume(dev->dev); 7390 7391 acrtc->enabled = true; 7392 acrtc->hw_mode = new_crtc_state->mode; 7393 crtc->hwmode = new_crtc_state->mode; 7394 } else if (modereset_required(new_crtc_state)) { 7395 DRM_DEBUG_DRIVER("Atomic commit: RESET. crtc id %d:[%p]\n", acrtc->crtc_id, acrtc); 7396 /* i.e. reset mode */ 7397 if (dm_old_crtc_state->stream) { 7398 if (dm_old_crtc_state->stream->link->psr_settings.psr_allow_active) 7399 amdgpu_dm_psr_disable(dm_old_crtc_state->stream); 7400 7401 remove_stream(adev, acrtc, dm_old_crtc_state->stream); 7402 } 7403 } 7404 } /* for_each_crtc_in_state() */ 7405 7406 if (dc_state) { 7407 dm_enable_per_frame_crtc_master_sync(dc_state); 7408 mutex_lock(&dm->dc_lock); 7409 WARN_ON(!dc_commit_state(dm->dc, dc_state)); 7410 mutex_unlock(&dm->dc_lock); 7411 } 7412 7413 for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) { 7414 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc); 7415 7416 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); 7417 7418 if (dm_new_crtc_state->stream != NULL) { 7419 const struct dc_stream_status *status = 7420 dc_stream_get_status(dm_new_crtc_state->stream); 7421 7422 if (!status) 7423 status = dc_stream_get_status_from_state(dc_state, 7424 dm_new_crtc_state->stream); 7425 7426 if (!status) 7427 DC_ERR("got no status for stream %p on acrtc%p\n", dm_new_crtc_state->stream, acrtc); 7428 else 7429 acrtc->otg_inst = status->primary_otg_inst; 7430 } 7431 } 7432 #ifdef CONFIG_DRM_AMD_DC_HDCP 7433 for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) { 7434 struct dm_connector_state *dm_new_con_state = to_dm_connector_state(new_con_state); 7435 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(dm_new_con_state->base.crtc); 7436 struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector); 7437 7438 new_crtc_state = NULL; 7439 7440 if (acrtc) 7441 new_crtc_state = drm_atomic_get_new_crtc_state(state, &acrtc->base); 7442 7443 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); 7444 7445 if (dm_new_crtc_state && dm_new_crtc_state->stream == NULL && 7446 connector->state->content_protection == DRM_MODE_CONTENT_PROTECTION_ENABLED) { 7447 hdcp_reset_display(adev->dm.hdcp_workqueue, aconnector->dc_link->link_index); 7448 new_con_state->content_protection = DRM_MODE_CONTENT_PROTECTION_DESIRED; 7449 continue; 7450 } 7451 7452 if (is_content_protection_different(new_con_state, old_con_state, connector, adev->dm.hdcp_workqueue)) 7453 hdcp_update_display( 7454 adev->dm.hdcp_workqueue, aconnector->dc_link->link_index, aconnector, 7455 new_con_state->hdcp_content_type, 7456 new_con_state->content_protection == DRM_MODE_CONTENT_PROTECTION_DESIRED ? true 7457 : false); 7458 } 7459 #endif 7460 7461 /* Handle connector state changes */ 7462 for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) { 7463 struct dm_connector_state *dm_new_con_state = to_dm_connector_state(new_con_state); 7464 struct dm_connector_state *dm_old_con_state = to_dm_connector_state(old_con_state); 7465 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(dm_new_con_state->base.crtc); 7466 struct dc_surface_update dummy_updates[MAX_SURFACES]; 7467 struct dc_stream_update stream_update; 7468 struct dc_info_packet hdr_packet; 7469 struct dc_stream_status *status = NULL; 7470 bool abm_changed, hdr_changed, scaling_changed; 7471 7472 memset(&dummy_updates, 0, sizeof(dummy_updates)); 7473 memset(&stream_update, 0, sizeof(stream_update)); 7474 7475 if (acrtc) { 7476 new_crtc_state = drm_atomic_get_new_crtc_state(state, &acrtc->base); 7477 old_crtc_state = drm_atomic_get_old_crtc_state(state, &acrtc->base); 7478 } 7479 7480 /* Skip any modesets/resets */ 7481 if (!acrtc || drm_atomic_crtc_needs_modeset(new_crtc_state)) 7482 continue; 7483 7484 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); 7485 dm_old_crtc_state = to_dm_crtc_state(old_crtc_state); 7486 7487 scaling_changed = is_scaling_state_different(dm_new_con_state, 7488 dm_old_con_state); 7489 7490 abm_changed = dm_new_crtc_state->abm_level != 7491 dm_old_crtc_state->abm_level; 7492 7493 hdr_changed = 7494 is_hdr_metadata_different(old_con_state, new_con_state); 7495 7496 if (!scaling_changed && !abm_changed && !hdr_changed) 7497 continue; 7498 7499 stream_update.stream = dm_new_crtc_state->stream; 7500 if (scaling_changed) { 7501 update_stream_scaling_settings(&dm_new_con_state->base.crtc->mode, 7502 dm_new_con_state, dm_new_crtc_state->stream); 7503 7504 stream_update.src = dm_new_crtc_state->stream->src; 7505 stream_update.dst = dm_new_crtc_state->stream->dst; 7506 } 7507 7508 if (abm_changed) { 7509 dm_new_crtc_state->stream->abm_level = dm_new_crtc_state->abm_level; 7510 7511 stream_update.abm_level = &dm_new_crtc_state->abm_level; 7512 } 7513 7514 if (hdr_changed) { 7515 fill_hdr_info_packet(new_con_state, &hdr_packet); 7516 stream_update.hdr_static_metadata = &hdr_packet; 7517 } 7518 7519 status = dc_stream_get_status(dm_new_crtc_state->stream); 7520 WARN_ON(!status); 7521 WARN_ON(!status->plane_count); 7522 7523 /* 7524 * TODO: DC refuses to perform stream updates without a dc_surface_update. 7525 * Here we create an empty update on each plane. 7526 * To fix this, DC should permit updating only stream properties. 7527 */ 7528 for (j = 0; j < status->plane_count; j++) 7529 dummy_updates[j].surface = status->plane_states[0]; 7530 7531 7532 mutex_lock(&dm->dc_lock); 7533 dc_commit_updates_for_stream(dm->dc, 7534 dummy_updates, 7535 status->plane_count, 7536 dm_new_crtc_state->stream, 7537 &stream_update, 7538 dc_state); 7539 mutex_unlock(&dm->dc_lock); 7540 } 7541 7542 /* Count number of newly disabled CRTCs for dropping PM refs later. */ 7543 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, 7544 new_crtc_state, i) { 7545 if (old_crtc_state->active && !new_crtc_state->active) 7546 crtc_disable_count++; 7547 7548 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); 7549 dm_old_crtc_state = to_dm_crtc_state(old_crtc_state); 7550 7551 /* Update freesync active state. */ 7552 pre_update_freesync_state_on_stream(dm, dm_new_crtc_state); 7553 7554 /* Handle vrr on->off / off->on transitions */ 7555 amdgpu_dm_handle_vrr_transition(dm_old_crtc_state, 7556 dm_new_crtc_state); 7557 } 7558 7559 /* Enable interrupts for CRTCs going through a modeset. */ 7560 amdgpu_dm_enable_crtc_interrupts(dev, state, true); 7561 7562 for_each_new_crtc_in_state(state, crtc, new_crtc_state, j) 7563 if (new_crtc_state->async_flip) 7564 wait_for_vblank = false; 7565 7566 /* update planes when needed per crtc*/ 7567 for_each_new_crtc_in_state(state, crtc, new_crtc_state, j) { 7568 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); 7569 7570 if (dm_new_crtc_state->stream) 7571 amdgpu_dm_commit_planes(state, dc_state, dev, 7572 dm, crtc, wait_for_vblank); 7573 } 7574 7575 /* Enable interrupts for CRTCs going from 0 to n active planes. */ 7576 amdgpu_dm_enable_crtc_interrupts(dev, state, false); 7577 7578 /* Update audio instances for each connector. */ 7579 amdgpu_dm_commit_audio(dev, state); 7580 7581 /* 7582 * send vblank event on all events not handled in flip and 7583 * mark consumed event for drm_atomic_helper_commit_hw_done 7584 */ 7585 spin_lock_irqsave(&adev->ddev->event_lock, flags); 7586 for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) { 7587 7588 if (new_crtc_state->event) 7589 drm_send_event_locked(dev, &new_crtc_state->event->base); 7590 7591 new_crtc_state->event = NULL; 7592 } 7593 spin_unlock_irqrestore(&adev->ddev->event_lock, flags); 7594 7595 /* Signal HW programming completion */ 7596 drm_atomic_helper_commit_hw_done(state); 7597 7598 if (wait_for_vblank) 7599 drm_atomic_helper_wait_for_flip_done(dev, state); 7600 7601 drm_atomic_helper_cleanup_planes(dev, state); 7602 7603 /* 7604 * Finally, drop a runtime PM reference for each newly disabled CRTC, 7605 * so we can put the GPU into runtime suspend if we're not driving any 7606 * displays anymore 7607 */ 7608 for (i = 0; i < crtc_disable_count; i++) 7609 pm_runtime_put_autosuspend(dev->dev); 7610 pm_runtime_mark_last_busy(dev->dev); 7611 7612 if (dc_state_temp) 7613 dc_release_state(dc_state_temp); 7614 } 7615 7616 7617 static int dm_force_atomic_commit(struct drm_connector *connector) 7618 { 7619 int ret = 0; 7620 struct drm_device *ddev = connector->dev; 7621 struct drm_atomic_state *state = drm_atomic_state_alloc(ddev); 7622 struct amdgpu_crtc *disconnected_acrtc = to_amdgpu_crtc(connector->encoder->crtc); 7623 struct drm_plane *plane = disconnected_acrtc->base.primary; 7624 struct drm_connector_state *conn_state; 7625 struct drm_crtc_state *crtc_state; 7626 struct drm_plane_state *plane_state; 7627 7628 if (!state) 7629 return -ENOMEM; 7630 7631 state->acquire_ctx = ddev->mode_config.acquire_ctx; 7632 7633 /* Construct an atomic state to restore previous display setting */ 7634 7635 /* 7636 * Attach connectors to drm_atomic_state 7637 */ 7638 conn_state = drm_atomic_get_connector_state(state, connector); 7639 7640 ret = PTR_ERR_OR_ZERO(conn_state); 7641 if (ret) 7642 goto err; 7643 7644 /* Attach crtc to drm_atomic_state*/ 7645 crtc_state = drm_atomic_get_crtc_state(state, &disconnected_acrtc->base); 7646 7647 ret = PTR_ERR_OR_ZERO(crtc_state); 7648 if (ret) 7649 goto err; 7650 7651 /* force a restore */ 7652 crtc_state->mode_changed = true; 7653 7654 /* Attach plane to drm_atomic_state */ 7655 plane_state = drm_atomic_get_plane_state(state, plane); 7656 7657 ret = PTR_ERR_OR_ZERO(plane_state); 7658 if (ret) 7659 goto err; 7660 7661 7662 /* Call commit internally with the state we just constructed */ 7663 ret = drm_atomic_commit(state); 7664 if (!ret) 7665 return 0; 7666 7667 err: 7668 DRM_ERROR("Restoring old state failed with %i\n", ret); 7669 drm_atomic_state_put(state); 7670 7671 return ret; 7672 } 7673 7674 /* 7675 * This function handles all cases when set mode does not come upon hotplug. 7676 * This includes when a display is unplugged then plugged back into the 7677 * same port and when running without usermode desktop manager supprot 7678 */ 7679 void dm_restore_drm_connector_state(struct drm_device *dev, 7680 struct drm_connector *connector) 7681 { 7682 struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector); 7683 struct amdgpu_crtc *disconnected_acrtc; 7684 struct dm_crtc_state *acrtc_state; 7685 7686 if (!aconnector->dc_sink || !connector->state || !connector->encoder) 7687 return; 7688 7689 disconnected_acrtc = to_amdgpu_crtc(connector->encoder->crtc); 7690 if (!disconnected_acrtc) 7691 return; 7692 7693 acrtc_state = to_dm_crtc_state(disconnected_acrtc->base.state); 7694 if (!acrtc_state->stream) 7695 return; 7696 7697 /* 7698 * If the previous sink is not released and different from the current, 7699 * we deduce we are in a state where we can not rely on usermode call 7700 * to turn on the display, so we do it here 7701 */ 7702 if (acrtc_state->stream->sink != aconnector->dc_sink) 7703 dm_force_atomic_commit(&aconnector->base); 7704 } 7705 7706 /* 7707 * Grabs all modesetting locks to serialize against any blocking commits, 7708 * Waits for completion of all non blocking commits. 7709 */ 7710 static int do_aquire_global_lock(struct drm_device *dev, 7711 struct drm_atomic_state *state) 7712 { 7713 struct drm_crtc *crtc; 7714 struct drm_crtc_commit *commit; 7715 long ret; 7716 7717 /* 7718 * Adding all modeset locks to aquire_ctx will 7719 * ensure that when the framework release it the 7720 * extra locks we are locking here will get released to 7721 */ 7722 ret = drm_modeset_lock_all_ctx(dev, state->acquire_ctx); 7723 if (ret) 7724 return ret; 7725 7726 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 7727 spin_lock(&crtc->commit_lock); 7728 commit = list_first_entry_or_null(&crtc->commit_list, 7729 struct drm_crtc_commit, commit_entry); 7730 if (commit) 7731 drm_crtc_commit_get(commit); 7732 spin_unlock(&crtc->commit_lock); 7733 7734 if (!commit) 7735 continue; 7736 7737 /* 7738 * Make sure all pending HW programming completed and 7739 * page flips done 7740 */ 7741 ret = wait_for_completion_interruptible_timeout(&commit->hw_done, 10*HZ); 7742 7743 if (ret > 0) 7744 ret = wait_for_completion_interruptible_timeout( 7745 &commit->flip_done, 10*HZ); 7746 7747 if (ret == 0) 7748 DRM_ERROR("[CRTC:%d:%s] hw_done or flip_done " 7749 "timed out\n", crtc->base.id, crtc->name); 7750 7751 drm_crtc_commit_put(commit); 7752 } 7753 7754 return ret < 0 ? ret : 0; 7755 } 7756 7757 static void get_freesync_config_for_crtc( 7758 struct dm_crtc_state *new_crtc_state, 7759 struct dm_connector_state *new_con_state) 7760 { 7761 struct mod_freesync_config config = {0}; 7762 struct amdgpu_dm_connector *aconnector = 7763 to_amdgpu_dm_connector(new_con_state->base.connector); 7764 struct drm_display_mode *mode = &new_crtc_state->base.mode; 7765 int vrefresh = drm_mode_vrefresh(mode); 7766 7767 new_crtc_state->vrr_supported = new_con_state->freesync_capable && 7768 vrefresh >= aconnector->min_vfreq && 7769 vrefresh <= aconnector->max_vfreq; 7770 7771 if (new_crtc_state->vrr_supported) { 7772 new_crtc_state->stream->ignore_msa_timing_param = true; 7773 config.state = new_crtc_state->base.vrr_enabled ? 7774 VRR_STATE_ACTIVE_VARIABLE : 7775 VRR_STATE_INACTIVE; 7776 config.min_refresh_in_uhz = 7777 aconnector->min_vfreq * 1000000; 7778 config.max_refresh_in_uhz = 7779 aconnector->max_vfreq * 1000000; 7780 config.vsif_supported = true; 7781 config.btr = true; 7782 } 7783 7784 new_crtc_state->freesync_config = config; 7785 } 7786 7787 static void reset_freesync_config_for_crtc( 7788 struct dm_crtc_state *new_crtc_state) 7789 { 7790 new_crtc_state->vrr_supported = false; 7791 7792 memset(&new_crtc_state->vrr_params, 0, 7793 sizeof(new_crtc_state->vrr_params)); 7794 memset(&new_crtc_state->vrr_infopacket, 0, 7795 sizeof(new_crtc_state->vrr_infopacket)); 7796 } 7797 7798 static int dm_update_crtc_state(struct amdgpu_display_manager *dm, 7799 struct drm_atomic_state *state, 7800 struct drm_crtc *crtc, 7801 struct drm_crtc_state *old_crtc_state, 7802 struct drm_crtc_state *new_crtc_state, 7803 bool enable, 7804 bool *lock_and_validation_needed) 7805 { 7806 struct dm_atomic_state *dm_state = NULL; 7807 struct dm_crtc_state *dm_old_crtc_state, *dm_new_crtc_state; 7808 struct dc_stream_state *new_stream; 7809 int ret = 0; 7810 7811 /* 7812 * TODO Move this code into dm_crtc_atomic_check once we get rid of dc_validation_set 7813 * update changed items 7814 */ 7815 struct amdgpu_crtc *acrtc = NULL; 7816 struct amdgpu_dm_connector *aconnector = NULL; 7817 struct drm_connector_state *drm_new_conn_state = NULL, *drm_old_conn_state = NULL; 7818 struct dm_connector_state *dm_new_conn_state = NULL, *dm_old_conn_state = NULL; 7819 7820 new_stream = NULL; 7821 7822 dm_old_crtc_state = to_dm_crtc_state(old_crtc_state); 7823 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); 7824 acrtc = to_amdgpu_crtc(crtc); 7825 aconnector = amdgpu_dm_find_first_crtc_matching_connector(state, crtc); 7826 7827 /* TODO This hack should go away */ 7828 if (aconnector && enable) { 7829 /* Make sure fake sink is created in plug-in scenario */ 7830 drm_new_conn_state = drm_atomic_get_new_connector_state(state, 7831 &aconnector->base); 7832 drm_old_conn_state = drm_atomic_get_old_connector_state(state, 7833 &aconnector->base); 7834 7835 if (IS_ERR(drm_new_conn_state)) { 7836 ret = PTR_ERR_OR_ZERO(drm_new_conn_state); 7837 goto fail; 7838 } 7839 7840 dm_new_conn_state = to_dm_connector_state(drm_new_conn_state); 7841 dm_old_conn_state = to_dm_connector_state(drm_old_conn_state); 7842 7843 if (!drm_atomic_crtc_needs_modeset(new_crtc_state)) 7844 goto skip_modeset; 7845 7846 new_stream = create_validate_stream_for_sink(aconnector, 7847 &new_crtc_state->mode, 7848 dm_new_conn_state, 7849 dm_old_crtc_state->stream); 7850 7851 /* 7852 * we can have no stream on ACTION_SET if a display 7853 * was disconnected during S3, in this case it is not an 7854 * error, the OS will be updated after detection, and 7855 * will do the right thing on next atomic commit 7856 */ 7857 7858 if (!new_stream) { 7859 DRM_DEBUG_DRIVER("%s: Failed to create new stream for crtc %d\n", 7860 __func__, acrtc->base.base.id); 7861 ret = -ENOMEM; 7862 goto fail; 7863 } 7864 7865 dm_new_crtc_state->abm_level = dm_new_conn_state->abm_level; 7866 7867 ret = fill_hdr_info_packet(drm_new_conn_state, 7868 &new_stream->hdr_static_metadata); 7869 if (ret) 7870 goto fail; 7871 7872 /* 7873 * If we already removed the old stream from the context 7874 * (and set the new stream to NULL) then we can't reuse 7875 * the old stream even if the stream and scaling are unchanged. 7876 * We'll hit the BUG_ON and black screen. 7877 * 7878 * TODO: Refactor this function to allow this check to work 7879 * in all conditions. 7880 */ 7881 if (dm_new_crtc_state->stream && 7882 dc_is_stream_unchanged(new_stream, dm_old_crtc_state->stream) && 7883 dc_is_stream_scaling_unchanged(new_stream, dm_old_crtc_state->stream)) { 7884 new_crtc_state->mode_changed = false; 7885 DRM_DEBUG_DRIVER("Mode change not required, setting mode_changed to %d", 7886 new_crtc_state->mode_changed); 7887 } 7888 } 7889 7890 /* mode_changed flag may get updated above, need to check again */ 7891 if (!drm_atomic_crtc_needs_modeset(new_crtc_state)) 7892 goto skip_modeset; 7893 7894 DRM_DEBUG_DRIVER( 7895 "amdgpu_crtc id:%d crtc_state_flags: enable:%d, active:%d, " 7896 "planes_changed:%d, mode_changed:%d,active_changed:%d," 7897 "connectors_changed:%d\n", 7898 acrtc->crtc_id, 7899 new_crtc_state->enable, 7900 new_crtc_state->active, 7901 new_crtc_state->planes_changed, 7902 new_crtc_state->mode_changed, 7903 new_crtc_state->active_changed, 7904 new_crtc_state->connectors_changed); 7905 7906 /* Remove stream for any changed/disabled CRTC */ 7907 if (!enable) { 7908 7909 if (!dm_old_crtc_state->stream) 7910 goto skip_modeset; 7911 7912 ret = dm_atomic_get_state(state, &dm_state); 7913 if (ret) 7914 goto fail; 7915 7916 DRM_DEBUG_DRIVER("Disabling DRM crtc: %d\n", 7917 crtc->base.id); 7918 7919 /* i.e. reset mode */ 7920 if (dc_remove_stream_from_ctx( 7921 dm->dc, 7922 dm_state->context, 7923 dm_old_crtc_state->stream) != DC_OK) { 7924 ret = -EINVAL; 7925 goto fail; 7926 } 7927 7928 dc_stream_release(dm_old_crtc_state->stream); 7929 dm_new_crtc_state->stream = NULL; 7930 7931 reset_freesync_config_for_crtc(dm_new_crtc_state); 7932 7933 *lock_and_validation_needed = true; 7934 7935 } else {/* Add stream for any updated/enabled CRTC */ 7936 /* 7937 * Quick fix to prevent NULL pointer on new_stream when 7938 * added MST connectors not found in existing crtc_state in the chained mode 7939 * TODO: need to dig out the root cause of that 7940 */ 7941 if (!aconnector || (!aconnector->dc_sink && aconnector->mst_port)) 7942 goto skip_modeset; 7943 7944 if (modereset_required(new_crtc_state)) 7945 goto skip_modeset; 7946 7947 if (modeset_required(new_crtc_state, new_stream, 7948 dm_old_crtc_state->stream)) { 7949 7950 WARN_ON(dm_new_crtc_state->stream); 7951 7952 ret = dm_atomic_get_state(state, &dm_state); 7953 if (ret) 7954 goto fail; 7955 7956 dm_new_crtc_state->stream = new_stream; 7957 7958 dc_stream_retain(new_stream); 7959 7960 DRM_DEBUG_DRIVER("Enabling DRM crtc: %d\n", 7961 crtc->base.id); 7962 7963 if (dc_add_stream_to_ctx( 7964 dm->dc, 7965 dm_state->context, 7966 dm_new_crtc_state->stream) != DC_OK) { 7967 ret = -EINVAL; 7968 goto fail; 7969 } 7970 7971 *lock_and_validation_needed = true; 7972 } 7973 } 7974 7975 skip_modeset: 7976 /* Release extra reference */ 7977 if (new_stream) 7978 dc_stream_release(new_stream); 7979 7980 /* 7981 * We want to do dc stream updates that do not require a 7982 * full modeset below. 7983 */ 7984 if (!(enable && aconnector && new_crtc_state->enable && 7985 new_crtc_state->active)) 7986 return 0; 7987 /* 7988 * Given above conditions, the dc state cannot be NULL because: 7989 * 1. We're in the process of enabling CRTCs (just been added 7990 * to the dc context, or already is on the context) 7991 * 2. Has a valid connector attached, and 7992 * 3. Is currently active and enabled. 7993 * => The dc stream state currently exists. 7994 */ 7995 BUG_ON(dm_new_crtc_state->stream == NULL); 7996 7997 /* Scaling or underscan settings */ 7998 if (is_scaling_state_different(dm_old_conn_state, dm_new_conn_state)) 7999 update_stream_scaling_settings( 8000 &new_crtc_state->mode, dm_new_conn_state, dm_new_crtc_state->stream); 8001 8002 /* ABM settings */ 8003 dm_new_crtc_state->abm_level = dm_new_conn_state->abm_level; 8004 8005 /* 8006 * Color management settings. We also update color properties 8007 * when a modeset is needed, to ensure it gets reprogrammed. 8008 */ 8009 if (dm_new_crtc_state->base.color_mgmt_changed || 8010 drm_atomic_crtc_needs_modeset(new_crtc_state)) { 8011 ret = amdgpu_dm_update_crtc_color_mgmt(dm_new_crtc_state); 8012 if (ret) 8013 goto fail; 8014 } 8015 8016 /* Update Freesync settings. */ 8017 get_freesync_config_for_crtc(dm_new_crtc_state, 8018 dm_new_conn_state); 8019 8020 return ret; 8021 8022 fail: 8023 if (new_stream) 8024 dc_stream_release(new_stream); 8025 return ret; 8026 } 8027 8028 static bool should_reset_plane(struct drm_atomic_state *state, 8029 struct drm_plane *plane, 8030 struct drm_plane_state *old_plane_state, 8031 struct drm_plane_state *new_plane_state) 8032 { 8033 struct drm_plane *other; 8034 struct drm_plane_state *old_other_state, *new_other_state; 8035 struct drm_crtc_state *new_crtc_state; 8036 int i; 8037 8038 /* 8039 * TODO: Remove this hack once the checks below are sufficient 8040 * enough to determine when we need to reset all the planes on 8041 * the stream. 8042 */ 8043 if (state->allow_modeset) 8044 return true; 8045 8046 /* Exit early if we know that we're adding or removing the plane. */ 8047 if (old_plane_state->crtc != new_plane_state->crtc) 8048 return true; 8049 8050 /* old crtc == new_crtc == NULL, plane not in context. */ 8051 if (!new_plane_state->crtc) 8052 return false; 8053 8054 new_crtc_state = 8055 drm_atomic_get_new_crtc_state(state, new_plane_state->crtc); 8056 8057 if (!new_crtc_state) 8058 return true; 8059 8060 /* CRTC Degamma changes currently require us to recreate planes. */ 8061 if (new_crtc_state->color_mgmt_changed) 8062 return true; 8063 8064 if (drm_atomic_crtc_needs_modeset(new_crtc_state)) 8065 return true; 8066 8067 /* 8068 * If there are any new primary or overlay planes being added or 8069 * removed then the z-order can potentially change. To ensure 8070 * correct z-order and pipe acquisition the current DC architecture 8071 * requires us to remove and recreate all existing planes. 8072 * 8073 * TODO: Come up with a more elegant solution for this. 8074 */ 8075 for_each_oldnew_plane_in_state(state, other, old_other_state, new_other_state, i) { 8076 if (other->type == DRM_PLANE_TYPE_CURSOR) 8077 continue; 8078 8079 if (old_other_state->crtc != new_plane_state->crtc && 8080 new_other_state->crtc != new_plane_state->crtc) 8081 continue; 8082 8083 if (old_other_state->crtc != new_other_state->crtc) 8084 return true; 8085 8086 /* TODO: Remove this once we can handle fast format changes. */ 8087 if (old_other_state->fb && new_other_state->fb && 8088 old_other_state->fb->format != new_other_state->fb->format) 8089 return true; 8090 } 8091 8092 return false; 8093 } 8094 8095 static int dm_update_plane_state(struct dc *dc, 8096 struct drm_atomic_state *state, 8097 struct drm_plane *plane, 8098 struct drm_plane_state *old_plane_state, 8099 struct drm_plane_state *new_plane_state, 8100 bool enable, 8101 bool *lock_and_validation_needed) 8102 { 8103 8104 struct dm_atomic_state *dm_state = NULL; 8105 struct drm_crtc *new_plane_crtc, *old_plane_crtc; 8106 struct drm_crtc_state *old_crtc_state, *new_crtc_state; 8107 struct dm_crtc_state *dm_new_crtc_state, *dm_old_crtc_state; 8108 struct dm_plane_state *dm_new_plane_state, *dm_old_plane_state; 8109 struct amdgpu_crtc *new_acrtc; 8110 bool needs_reset; 8111 int ret = 0; 8112 8113 8114 new_plane_crtc = new_plane_state->crtc; 8115 old_plane_crtc = old_plane_state->crtc; 8116 dm_new_plane_state = to_dm_plane_state(new_plane_state); 8117 dm_old_plane_state = to_dm_plane_state(old_plane_state); 8118 8119 /*TODO Implement better atomic check for cursor plane */ 8120 if (plane->type == DRM_PLANE_TYPE_CURSOR) { 8121 if (!enable || !new_plane_crtc || 8122 drm_atomic_plane_disabling(plane->state, new_plane_state)) 8123 return 0; 8124 8125 new_acrtc = to_amdgpu_crtc(new_plane_crtc); 8126 8127 if ((new_plane_state->crtc_w > new_acrtc->max_cursor_width) || 8128 (new_plane_state->crtc_h > new_acrtc->max_cursor_height)) { 8129 DRM_DEBUG_ATOMIC("Bad cursor size %d x %d\n", 8130 new_plane_state->crtc_w, new_plane_state->crtc_h); 8131 return -EINVAL; 8132 } 8133 8134 return 0; 8135 } 8136 8137 needs_reset = should_reset_plane(state, plane, old_plane_state, 8138 new_plane_state); 8139 8140 /* Remove any changed/removed planes */ 8141 if (!enable) { 8142 if (!needs_reset) 8143 return 0; 8144 8145 if (!old_plane_crtc) 8146 return 0; 8147 8148 old_crtc_state = drm_atomic_get_old_crtc_state( 8149 state, old_plane_crtc); 8150 dm_old_crtc_state = to_dm_crtc_state(old_crtc_state); 8151 8152 if (!dm_old_crtc_state->stream) 8153 return 0; 8154 8155 DRM_DEBUG_ATOMIC("Disabling DRM plane: %d on DRM crtc %d\n", 8156 plane->base.id, old_plane_crtc->base.id); 8157 8158 ret = dm_atomic_get_state(state, &dm_state); 8159 if (ret) 8160 return ret; 8161 8162 if (!dc_remove_plane_from_context( 8163 dc, 8164 dm_old_crtc_state->stream, 8165 dm_old_plane_state->dc_state, 8166 dm_state->context)) { 8167 8168 ret = EINVAL; 8169 return ret; 8170 } 8171 8172 8173 dc_plane_state_release(dm_old_plane_state->dc_state); 8174 dm_new_plane_state->dc_state = NULL; 8175 8176 *lock_and_validation_needed = true; 8177 8178 } else { /* Add new planes */ 8179 struct dc_plane_state *dc_new_plane_state; 8180 8181 if (drm_atomic_plane_disabling(plane->state, new_plane_state)) 8182 return 0; 8183 8184 if (!new_plane_crtc) 8185 return 0; 8186 8187 new_crtc_state = drm_atomic_get_new_crtc_state(state, new_plane_crtc); 8188 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); 8189 8190 if (!dm_new_crtc_state->stream) 8191 return 0; 8192 8193 if (!needs_reset) 8194 return 0; 8195 8196 WARN_ON(dm_new_plane_state->dc_state); 8197 8198 dc_new_plane_state = dc_create_plane_state(dc); 8199 if (!dc_new_plane_state) 8200 return -ENOMEM; 8201 8202 DRM_DEBUG_DRIVER("Enabling DRM plane: %d on DRM crtc %d\n", 8203 plane->base.id, new_plane_crtc->base.id); 8204 8205 ret = fill_dc_plane_attributes( 8206 new_plane_crtc->dev->dev_private, 8207 dc_new_plane_state, 8208 new_plane_state, 8209 new_crtc_state); 8210 if (ret) { 8211 dc_plane_state_release(dc_new_plane_state); 8212 return ret; 8213 } 8214 8215 ret = dm_atomic_get_state(state, &dm_state); 8216 if (ret) { 8217 dc_plane_state_release(dc_new_plane_state); 8218 return ret; 8219 } 8220 8221 /* 8222 * Any atomic check errors that occur after this will 8223 * not need a release. The plane state will be attached 8224 * to the stream, and therefore part of the atomic 8225 * state. It'll be released when the atomic state is 8226 * cleaned. 8227 */ 8228 if (!dc_add_plane_to_context( 8229 dc, 8230 dm_new_crtc_state->stream, 8231 dc_new_plane_state, 8232 dm_state->context)) { 8233 8234 dc_plane_state_release(dc_new_plane_state); 8235 return -EINVAL; 8236 } 8237 8238 dm_new_plane_state->dc_state = dc_new_plane_state; 8239 8240 /* Tell DC to do a full surface update every time there 8241 * is a plane change. Inefficient, but works for now. 8242 */ 8243 dm_new_plane_state->dc_state->update_flags.bits.full_update = 1; 8244 8245 *lock_and_validation_needed = true; 8246 } 8247 8248 8249 return ret; 8250 } 8251 8252 static int 8253 dm_determine_update_type_for_commit(struct amdgpu_display_manager *dm, 8254 struct drm_atomic_state *state, 8255 enum surface_update_type *out_type) 8256 { 8257 struct dc *dc = dm->dc; 8258 struct dm_atomic_state *dm_state = NULL, *old_dm_state = NULL; 8259 int i, j, num_plane, ret = 0; 8260 struct drm_plane_state *old_plane_state, *new_plane_state; 8261 struct dm_plane_state *new_dm_plane_state, *old_dm_plane_state; 8262 struct drm_crtc *new_plane_crtc; 8263 struct drm_plane *plane; 8264 8265 struct drm_crtc *crtc; 8266 struct drm_crtc_state *new_crtc_state, *old_crtc_state; 8267 struct dm_crtc_state *new_dm_crtc_state, *old_dm_crtc_state; 8268 struct dc_stream_status *status = NULL; 8269 enum surface_update_type update_type = UPDATE_TYPE_FAST; 8270 struct surface_info_bundle { 8271 struct dc_surface_update surface_updates[MAX_SURFACES]; 8272 struct dc_plane_info plane_infos[MAX_SURFACES]; 8273 struct dc_scaling_info scaling_infos[MAX_SURFACES]; 8274 struct dc_flip_addrs flip_addrs[MAX_SURFACES]; 8275 struct dc_stream_update stream_update; 8276 } *bundle; 8277 8278 bundle = kzalloc(sizeof(*bundle), GFP_KERNEL); 8279 8280 if (!bundle) { 8281 DRM_ERROR("Failed to allocate update bundle\n"); 8282 /* Set type to FULL to avoid crashing in DC*/ 8283 update_type = UPDATE_TYPE_FULL; 8284 goto cleanup; 8285 } 8286 8287 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { 8288 8289 memset(bundle, 0, sizeof(struct surface_info_bundle)); 8290 8291 new_dm_crtc_state = to_dm_crtc_state(new_crtc_state); 8292 old_dm_crtc_state = to_dm_crtc_state(old_crtc_state); 8293 num_plane = 0; 8294 8295 if (new_dm_crtc_state->stream != old_dm_crtc_state->stream) { 8296 update_type = UPDATE_TYPE_FULL; 8297 goto cleanup; 8298 } 8299 8300 if (!new_dm_crtc_state->stream) 8301 continue; 8302 8303 for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, j) { 8304 const struct amdgpu_framebuffer *amdgpu_fb = 8305 to_amdgpu_framebuffer(new_plane_state->fb); 8306 struct dc_plane_info *plane_info = &bundle->plane_infos[num_plane]; 8307 struct dc_flip_addrs *flip_addr = &bundle->flip_addrs[num_plane]; 8308 struct dc_scaling_info *scaling_info = &bundle->scaling_infos[num_plane]; 8309 uint64_t tiling_flags; 8310 bool tmz_surface = false; 8311 8312 new_plane_crtc = new_plane_state->crtc; 8313 new_dm_plane_state = to_dm_plane_state(new_plane_state); 8314 old_dm_plane_state = to_dm_plane_state(old_plane_state); 8315 8316 if (plane->type == DRM_PLANE_TYPE_CURSOR) 8317 continue; 8318 8319 if (new_dm_plane_state->dc_state != old_dm_plane_state->dc_state) { 8320 update_type = UPDATE_TYPE_FULL; 8321 goto cleanup; 8322 } 8323 8324 if (crtc != new_plane_crtc) 8325 continue; 8326 8327 bundle->surface_updates[num_plane].surface = 8328 new_dm_plane_state->dc_state; 8329 8330 if (new_crtc_state->mode_changed) { 8331 bundle->stream_update.dst = new_dm_crtc_state->stream->dst; 8332 bundle->stream_update.src = new_dm_crtc_state->stream->src; 8333 } 8334 8335 if (new_crtc_state->color_mgmt_changed) { 8336 bundle->surface_updates[num_plane].gamma = 8337 new_dm_plane_state->dc_state->gamma_correction; 8338 bundle->surface_updates[num_plane].in_transfer_func = 8339 new_dm_plane_state->dc_state->in_transfer_func; 8340 bundle->surface_updates[num_plane].gamut_remap_matrix = 8341 &new_dm_plane_state->dc_state->gamut_remap_matrix; 8342 bundle->stream_update.gamut_remap = 8343 &new_dm_crtc_state->stream->gamut_remap_matrix; 8344 bundle->stream_update.output_csc_transform = 8345 &new_dm_crtc_state->stream->csc_color_matrix; 8346 bundle->stream_update.out_transfer_func = 8347 new_dm_crtc_state->stream->out_transfer_func; 8348 } 8349 8350 ret = fill_dc_scaling_info(new_plane_state, 8351 scaling_info); 8352 if (ret) 8353 goto cleanup; 8354 8355 bundle->surface_updates[num_plane].scaling_info = scaling_info; 8356 8357 if (amdgpu_fb) { 8358 ret = get_fb_info(amdgpu_fb, &tiling_flags, &tmz_surface); 8359 if (ret) 8360 goto cleanup; 8361 8362 ret = fill_dc_plane_info_and_addr( 8363 dm->adev, new_plane_state, tiling_flags, 8364 plane_info, 8365 &flip_addr->address, tmz_surface, 8366 false); 8367 if (ret) 8368 goto cleanup; 8369 8370 bundle->surface_updates[num_plane].plane_info = plane_info; 8371 bundle->surface_updates[num_plane].flip_addr = flip_addr; 8372 } 8373 8374 num_plane++; 8375 } 8376 8377 if (num_plane == 0) 8378 continue; 8379 8380 ret = dm_atomic_get_state(state, &dm_state); 8381 if (ret) 8382 goto cleanup; 8383 8384 old_dm_state = dm_atomic_get_old_state(state); 8385 if (!old_dm_state) { 8386 ret = -EINVAL; 8387 goto cleanup; 8388 } 8389 8390 status = dc_stream_get_status_from_state(old_dm_state->context, 8391 new_dm_crtc_state->stream); 8392 bundle->stream_update.stream = new_dm_crtc_state->stream; 8393 /* 8394 * TODO: DC modifies the surface during this call so we need 8395 * to lock here - find a way to do this without locking. 8396 */ 8397 mutex_lock(&dm->dc_lock); 8398 update_type = dc_check_update_surfaces_for_stream( 8399 dc, bundle->surface_updates, num_plane, 8400 &bundle->stream_update, status); 8401 mutex_unlock(&dm->dc_lock); 8402 8403 if (update_type > UPDATE_TYPE_MED) { 8404 update_type = UPDATE_TYPE_FULL; 8405 goto cleanup; 8406 } 8407 } 8408 8409 cleanup: 8410 kfree(bundle); 8411 8412 *out_type = update_type; 8413 return ret; 8414 } 8415 8416 static int add_affected_mst_dsc_crtcs(struct drm_atomic_state *state, struct drm_crtc *crtc) 8417 { 8418 struct drm_connector *connector; 8419 struct drm_connector_state *conn_state; 8420 struct amdgpu_dm_connector *aconnector = NULL; 8421 int i; 8422 for_each_new_connector_in_state(state, connector, conn_state, i) { 8423 if (conn_state->crtc != crtc) 8424 continue; 8425 8426 aconnector = to_amdgpu_dm_connector(connector); 8427 if (!aconnector->port || !aconnector->mst_port) 8428 aconnector = NULL; 8429 else 8430 break; 8431 } 8432 8433 if (!aconnector) 8434 return 0; 8435 8436 return drm_dp_mst_add_affected_dsc_crtcs(state, &aconnector->mst_port->mst_mgr); 8437 } 8438 8439 /** 8440 * amdgpu_dm_atomic_check() - Atomic check implementation for AMDgpu DM. 8441 * @dev: The DRM device 8442 * @state: The atomic state to commit 8443 * 8444 * Validate that the given atomic state is programmable by DC into hardware. 8445 * This involves constructing a &struct dc_state reflecting the new hardware 8446 * state we wish to commit, then querying DC to see if it is programmable. It's 8447 * important not to modify the existing DC state. Otherwise, atomic_check 8448 * may unexpectedly commit hardware changes. 8449 * 8450 * When validating the DC state, it's important that the right locks are 8451 * acquired. For full updates case which removes/adds/updates streams on one 8452 * CRTC while flipping on another CRTC, acquiring global lock will guarantee 8453 * that any such full update commit will wait for completion of any outstanding 8454 * flip using DRMs synchronization events. See 8455 * dm_determine_update_type_for_commit() 8456 * 8457 * Note that DM adds the affected connectors for all CRTCs in state, when that 8458 * might not seem necessary. This is because DC stream creation requires the 8459 * DC sink, which is tied to the DRM connector state. Cleaning this up should 8460 * be possible but non-trivial - a possible TODO item. 8461 * 8462 * Return: -Error code if validation failed. 8463 */ 8464 static int amdgpu_dm_atomic_check(struct drm_device *dev, 8465 struct drm_atomic_state *state) 8466 { 8467 struct amdgpu_device *adev = dev->dev_private; 8468 struct dm_atomic_state *dm_state = NULL; 8469 struct dc *dc = adev->dm.dc; 8470 struct drm_connector *connector; 8471 struct drm_connector_state *old_con_state, *new_con_state; 8472 struct drm_crtc *crtc; 8473 struct drm_crtc_state *old_crtc_state, *new_crtc_state; 8474 struct drm_plane *plane; 8475 struct drm_plane_state *old_plane_state, *new_plane_state; 8476 enum surface_update_type update_type = UPDATE_TYPE_FAST; 8477 enum surface_update_type overall_update_type = UPDATE_TYPE_FAST; 8478 8479 int ret, i; 8480 8481 /* 8482 * This bool will be set for true for any modeset/reset 8483 * or plane update which implies non fast surface update. 8484 */ 8485 bool lock_and_validation_needed = false; 8486 8487 ret = drm_atomic_helper_check_modeset(dev, state); 8488 if (ret) 8489 goto fail; 8490 8491 if (adev->asic_type >= CHIP_NAVI10) { 8492 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { 8493 if (drm_atomic_crtc_needs_modeset(new_crtc_state)) { 8494 ret = add_affected_mst_dsc_crtcs(state, crtc); 8495 if (ret) 8496 goto fail; 8497 } 8498 } 8499 } 8500 8501 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { 8502 if (!drm_atomic_crtc_needs_modeset(new_crtc_state) && 8503 !new_crtc_state->color_mgmt_changed && 8504 old_crtc_state->vrr_enabled == new_crtc_state->vrr_enabled) 8505 continue; 8506 8507 if (!new_crtc_state->enable) 8508 continue; 8509 8510 ret = drm_atomic_add_affected_connectors(state, crtc); 8511 if (ret) 8512 return ret; 8513 8514 ret = drm_atomic_add_affected_planes(state, crtc); 8515 if (ret) 8516 goto fail; 8517 } 8518 8519 /* 8520 * Add all primary and overlay planes on the CRTC to the state 8521 * whenever a plane is enabled to maintain correct z-ordering 8522 * and to enable fast surface updates. 8523 */ 8524 drm_for_each_crtc(crtc, dev) { 8525 bool modified = false; 8526 8527 for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, i) { 8528 if (plane->type == DRM_PLANE_TYPE_CURSOR) 8529 continue; 8530 8531 if (new_plane_state->crtc == crtc || 8532 old_plane_state->crtc == crtc) { 8533 modified = true; 8534 break; 8535 } 8536 } 8537 8538 if (!modified) 8539 continue; 8540 8541 drm_for_each_plane_mask(plane, state->dev, crtc->state->plane_mask) { 8542 if (plane->type == DRM_PLANE_TYPE_CURSOR) 8543 continue; 8544 8545 new_plane_state = 8546 drm_atomic_get_plane_state(state, plane); 8547 8548 if (IS_ERR(new_plane_state)) { 8549 ret = PTR_ERR(new_plane_state); 8550 goto fail; 8551 } 8552 } 8553 } 8554 8555 /* Remove exiting planes if they are modified */ 8556 for_each_oldnew_plane_in_state_reverse(state, plane, old_plane_state, new_plane_state, i) { 8557 ret = dm_update_plane_state(dc, state, plane, 8558 old_plane_state, 8559 new_plane_state, 8560 false, 8561 &lock_and_validation_needed); 8562 if (ret) 8563 goto fail; 8564 } 8565 8566 /* Disable all crtcs which require disable */ 8567 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { 8568 ret = dm_update_crtc_state(&adev->dm, state, crtc, 8569 old_crtc_state, 8570 new_crtc_state, 8571 false, 8572 &lock_and_validation_needed); 8573 if (ret) 8574 goto fail; 8575 } 8576 8577 /* Enable all crtcs which require enable */ 8578 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { 8579 ret = dm_update_crtc_state(&adev->dm, state, crtc, 8580 old_crtc_state, 8581 new_crtc_state, 8582 true, 8583 &lock_and_validation_needed); 8584 if (ret) 8585 goto fail; 8586 } 8587 8588 /* Add new/modified planes */ 8589 for_each_oldnew_plane_in_state_reverse(state, plane, old_plane_state, new_plane_state, i) { 8590 ret = dm_update_plane_state(dc, state, plane, 8591 old_plane_state, 8592 new_plane_state, 8593 true, 8594 &lock_and_validation_needed); 8595 if (ret) 8596 goto fail; 8597 } 8598 8599 /* Run this here since we want to validate the streams we created */ 8600 ret = drm_atomic_helper_check_planes(dev, state); 8601 if (ret) 8602 goto fail; 8603 8604 if (state->legacy_cursor_update) { 8605 /* 8606 * This is a fast cursor update coming from the plane update 8607 * helper, check if it can be done asynchronously for better 8608 * performance. 8609 */ 8610 state->async_update = 8611 !drm_atomic_helper_async_check(dev, state); 8612 8613 /* 8614 * Skip the remaining global validation if this is an async 8615 * update. Cursor updates can be done without affecting 8616 * state or bandwidth calcs and this avoids the performance 8617 * penalty of locking the private state object and 8618 * allocating a new dc_state. 8619 */ 8620 if (state->async_update) 8621 return 0; 8622 } 8623 8624 /* Check scaling and underscan changes*/ 8625 /* TODO Removed scaling changes validation due to inability to commit 8626 * new stream into context w\o causing full reset. Need to 8627 * decide how to handle. 8628 */ 8629 for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) { 8630 struct dm_connector_state *dm_old_con_state = to_dm_connector_state(old_con_state); 8631 struct dm_connector_state *dm_new_con_state = to_dm_connector_state(new_con_state); 8632 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(dm_new_con_state->base.crtc); 8633 8634 /* Skip any modesets/resets */ 8635 if (!acrtc || drm_atomic_crtc_needs_modeset( 8636 drm_atomic_get_new_crtc_state(state, &acrtc->base))) 8637 continue; 8638 8639 /* Skip any thing not scale or underscan changes */ 8640 if (!is_scaling_state_different(dm_new_con_state, dm_old_con_state)) 8641 continue; 8642 8643 overall_update_type = UPDATE_TYPE_FULL; 8644 lock_and_validation_needed = true; 8645 } 8646 8647 ret = dm_determine_update_type_for_commit(&adev->dm, state, &update_type); 8648 if (ret) 8649 goto fail; 8650 8651 if (overall_update_type < update_type) 8652 overall_update_type = update_type; 8653 8654 /* 8655 * lock_and_validation_needed was an old way to determine if we need to set 8656 * the global lock. Leaving it in to check if we broke any corner cases 8657 * lock_and_validation_needed true = UPDATE_TYPE_FULL or UPDATE_TYPE_MED 8658 * lock_and_validation_needed false = UPDATE_TYPE_FAST 8659 */ 8660 if (lock_and_validation_needed && overall_update_type <= UPDATE_TYPE_FAST) 8661 WARN(1, "Global lock should be Set, overall_update_type should be UPDATE_TYPE_MED or UPDATE_TYPE_FULL"); 8662 8663 if (overall_update_type > UPDATE_TYPE_FAST) { 8664 ret = dm_atomic_get_state(state, &dm_state); 8665 if (ret) 8666 goto fail; 8667 8668 ret = do_aquire_global_lock(dev, state); 8669 if (ret) 8670 goto fail; 8671 8672 #if defined(CONFIG_DRM_AMD_DC_DCN) 8673 if (!compute_mst_dsc_configs_for_state(state, dm_state->context)) 8674 goto fail; 8675 8676 ret = dm_update_mst_vcpi_slots_for_dsc(state, dm_state->context); 8677 if (ret) 8678 goto fail; 8679 #endif 8680 8681 /* 8682 * Perform validation of MST topology in the state: 8683 * We need to perform MST atomic check before calling 8684 * dc_validate_global_state(), or there is a chance 8685 * to get stuck in an infinite loop and hang eventually. 8686 */ 8687 ret = drm_dp_mst_atomic_check(state); 8688 if (ret) 8689 goto fail; 8690 8691 if (dc_validate_global_state(dc, dm_state->context, false) != DC_OK) { 8692 ret = -EINVAL; 8693 goto fail; 8694 } 8695 } else { 8696 /* 8697 * The commit is a fast update. Fast updates shouldn't change 8698 * the DC context, affect global validation, and can have their 8699 * commit work done in parallel with other commits not touching 8700 * the same resource. If we have a new DC context as part of 8701 * the DM atomic state from validation we need to free it and 8702 * retain the existing one instead. 8703 */ 8704 struct dm_atomic_state *new_dm_state, *old_dm_state; 8705 8706 new_dm_state = dm_atomic_get_new_state(state); 8707 old_dm_state = dm_atomic_get_old_state(state); 8708 8709 if (new_dm_state && old_dm_state) { 8710 if (new_dm_state->context) 8711 dc_release_state(new_dm_state->context); 8712 8713 new_dm_state->context = old_dm_state->context; 8714 8715 if (old_dm_state->context) 8716 dc_retain_state(old_dm_state->context); 8717 } 8718 } 8719 8720 /* Store the overall update type for use later in atomic check. */ 8721 for_each_new_crtc_in_state (state, crtc, new_crtc_state, i) { 8722 struct dm_crtc_state *dm_new_crtc_state = 8723 to_dm_crtc_state(new_crtc_state); 8724 8725 dm_new_crtc_state->update_type = (int)overall_update_type; 8726 } 8727 8728 /* Must be success */ 8729 WARN_ON(ret); 8730 return ret; 8731 8732 fail: 8733 if (ret == -EDEADLK) 8734 DRM_DEBUG_DRIVER("Atomic check stopped to avoid deadlock.\n"); 8735 else if (ret == -EINTR || ret == -EAGAIN || ret == -ERESTARTSYS) 8736 DRM_DEBUG_DRIVER("Atomic check stopped due to signal.\n"); 8737 else 8738 DRM_DEBUG_DRIVER("Atomic check failed with err: %d \n", ret); 8739 8740 return ret; 8741 } 8742 8743 static bool is_dp_capable_without_timing_msa(struct dc *dc, 8744 struct amdgpu_dm_connector *amdgpu_dm_connector) 8745 { 8746 uint8_t dpcd_data; 8747 bool capable = false; 8748 8749 if (amdgpu_dm_connector->dc_link && 8750 dm_helpers_dp_read_dpcd( 8751 NULL, 8752 amdgpu_dm_connector->dc_link, 8753 DP_DOWN_STREAM_PORT_COUNT, 8754 &dpcd_data, 8755 sizeof(dpcd_data))) { 8756 capable = (dpcd_data & DP_MSA_TIMING_PAR_IGNORED) ? true:false; 8757 } 8758 8759 return capable; 8760 } 8761 void amdgpu_dm_update_freesync_caps(struct drm_connector *connector, 8762 struct edid *edid) 8763 { 8764 int i; 8765 bool edid_check_required; 8766 struct detailed_timing *timing; 8767 struct detailed_non_pixel *data; 8768 struct detailed_data_monitor_range *range; 8769 struct amdgpu_dm_connector *amdgpu_dm_connector = 8770 to_amdgpu_dm_connector(connector); 8771 struct dm_connector_state *dm_con_state = NULL; 8772 8773 struct drm_device *dev = connector->dev; 8774 struct amdgpu_device *adev = dev->dev_private; 8775 bool freesync_capable = false; 8776 8777 if (!connector->state) { 8778 DRM_ERROR("%s - Connector has no state", __func__); 8779 goto update; 8780 } 8781 8782 if (!edid) { 8783 dm_con_state = to_dm_connector_state(connector->state); 8784 8785 amdgpu_dm_connector->min_vfreq = 0; 8786 amdgpu_dm_connector->max_vfreq = 0; 8787 amdgpu_dm_connector->pixel_clock_mhz = 0; 8788 8789 goto update; 8790 } 8791 8792 dm_con_state = to_dm_connector_state(connector->state); 8793 8794 edid_check_required = false; 8795 if (!amdgpu_dm_connector->dc_sink) { 8796 DRM_ERROR("dc_sink NULL, could not add free_sync module.\n"); 8797 goto update; 8798 } 8799 if (!adev->dm.freesync_module) 8800 goto update; 8801 /* 8802 * if edid non zero restrict freesync only for dp and edp 8803 */ 8804 if (edid) { 8805 if (amdgpu_dm_connector->dc_sink->sink_signal == SIGNAL_TYPE_DISPLAY_PORT 8806 || amdgpu_dm_connector->dc_sink->sink_signal == SIGNAL_TYPE_EDP) { 8807 edid_check_required = is_dp_capable_without_timing_msa( 8808 adev->dm.dc, 8809 amdgpu_dm_connector); 8810 } 8811 } 8812 if (edid_check_required == true && (edid->version > 1 || 8813 (edid->version == 1 && edid->revision > 1))) { 8814 for (i = 0; i < 4; i++) { 8815 8816 timing = &edid->detailed_timings[i]; 8817 data = &timing->data.other_data; 8818 range = &data->data.range; 8819 /* 8820 * Check if monitor has continuous frequency mode 8821 */ 8822 if (data->type != EDID_DETAIL_MONITOR_RANGE) 8823 continue; 8824 /* 8825 * Check for flag range limits only. If flag == 1 then 8826 * no additional timing information provided. 8827 * Default GTF, GTF Secondary curve and CVT are not 8828 * supported 8829 */ 8830 if (range->flags != 1) 8831 continue; 8832 8833 amdgpu_dm_connector->min_vfreq = range->min_vfreq; 8834 amdgpu_dm_connector->max_vfreq = range->max_vfreq; 8835 amdgpu_dm_connector->pixel_clock_mhz = 8836 range->pixel_clock_mhz * 10; 8837 break; 8838 } 8839 8840 if (amdgpu_dm_connector->max_vfreq - 8841 amdgpu_dm_connector->min_vfreq > 10) { 8842 8843 freesync_capable = true; 8844 } 8845 } 8846 8847 update: 8848 if (dm_con_state) 8849 dm_con_state->freesync_capable = freesync_capable; 8850 8851 if (connector->vrr_capable_property) 8852 drm_connector_set_vrr_capable_property(connector, 8853 freesync_capable); 8854 } 8855 8856 static void amdgpu_dm_set_psr_caps(struct dc_link *link) 8857 { 8858 uint8_t dpcd_data[EDP_PSR_RECEIVER_CAP_SIZE]; 8859 8860 if (!(link->connector_signal & SIGNAL_TYPE_EDP)) 8861 return; 8862 if (link->type == dc_connection_none) 8863 return; 8864 if (dm_helpers_dp_read_dpcd(NULL, link, DP_PSR_SUPPORT, 8865 dpcd_data, sizeof(dpcd_data))) { 8866 link->dpcd_caps.psr_caps.psr_version = dpcd_data[0]; 8867 8868 if (dpcd_data[0] == 0) { 8869 link->psr_settings.psr_version = DC_PSR_VERSION_UNSUPPORTED; 8870 link->psr_settings.psr_feature_enabled = false; 8871 } else { 8872 link->psr_settings.psr_version = DC_PSR_VERSION_1; 8873 link->psr_settings.psr_feature_enabled = true; 8874 } 8875 8876 DRM_INFO("PSR support:%d\n", link->psr_settings.psr_feature_enabled); 8877 } 8878 } 8879 8880 /* 8881 * amdgpu_dm_link_setup_psr() - configure psr link 8882 * @stream: stream state 8883 * 8884 * Return: true if success 8885 */ 8886 static bool amdgpu_dm_link_setup_psr(struct dc_stream_state *stream) 8887 { 8888 struct dc_link *link = NULL; 8889 struct psr_config psr_config = {0}; 8890 struct psr_context psr_context = {0}; 8891 bool ret = false; 8892 8893 if (stream == NULL) 8894 return false; 8895 8896 link = stream->link; 8897 8898 psr_config.psr_version = link->dpcd_caps.psr_caps.psr_version; 8899 8900 if (psr_config.psr_version > 0) { 8901 psr_config.psr_exit_link_training_required = 0x1; 8902 psr_config.psr_frame_capture_indication_req = 0; 8903 psr_config.psr_rfb_setup_time = 0x37; 8904 psr_config.psr_sdp_transmit_line_num_deadline = 0x20; 8905 psr_config.allow_smu_optimizations = 0x0; 8906 8907 ret = dc_link_setup_psr(link, stream, &psr_config, &psr_context); 8908 8909 } 8910 DRM_DEBUG_DRIVER("PSR link: %d\n", link->psr_settings.psr_feature_enabled); 8911 8912 return ret; 8913 } 8914 8915 /* 8916 * amdgpu_dm_psr_enable() - enable psr f/w 8917 * @stream: stream state 8918 * 8919 * Return: true if success 8920 */ 8921 bool amdgpu_dm_psr_enable(struct dc_stream_state *stream) 8922 { 8923 struct dc_link *link = stream->link; 8924 unsigned int vsync_rate_hz = 0; 8925 struct dc_static_screen_params params = {0}; 8926 /* Calculate number of static frames before generating interrupt to 8927 * enter PSR. 8928 */ 8929 // Init fail safe of 2 frames static 8930 unsigned int num_frames_static = 2; 8931 8932 DRM_DEBUG_DRIVER("Enabling psr...\n"); 8933 8934 vsync_rate_hz = div64_u64(div64_u64(( 8935 stream->timing.pix_clk_100hz * 100), 8936 stream->timing.v_total), 8937 stream->timing.h_total); 8938 8939 /* Round up 8940 * Calculate number of frames such that at least 30 ms of time has 8941 * passed. 8942 */ 8943 if (vsync_rate_hz != 0) { 8944 unsigned int frame_time_microsec = 1000000 / vsync_rate_hz; 8945 num_frames_static = (30000 / frame_time_microsec) + 1; 8946 } 8947 8948 params.triggers.cursor_update = true; 8949 params.triggers.overlay_update = true; 8950 params.triggers.surface_update = true; 8951 params.num_frames = num_frames_static; 8952 8953 dc_stream_set_static_screen_params(link->ctx->dc, 8954 &stream, 1, 8955 ¶ms); 8956 8957 return dc_link_set_psr_allow_active(link, true, false); 8958 } 8959 8960 /* 8961 * amdgpu_dm_psr_disable() - disable psr f/w 8962 * @stream: stream state 8963 * 8964 * Return: true if success 8965 */ 8966 static bool amdgpu_dm_psr_disable(struct dc_stream_state *stream) 8967 { 8968 8969 DRM_DEBUG_DRIVER("Disabling psr...\n"); 8970 8971 return dc_link_set_psr_allow_active(stream->link, false, true); 8972 } 8973