1 // SPDX-License-Identifier: MIT 2 /* 3 * Copyright 2015-2026 Advanced Micro Devices, Inc. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a 6 * copy of this software and associated documentation files (the "Software"), 7 * to deal in the Software without restriction, including without limitation 8 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 9 * and/or sell copies of the Software, and to permit persons to whom the 10 * Software is furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice shall be included in 13 * all copies or substantial portions of the Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 21 * OTHER DEALINGS IN THE SOFTWARE. 22 * 23 * Authors: AMD 24 * 25 */ 26 27 /* The caprices of the preprocessor require that this be declared right here */ 28 #define CREATE_TRACE_POINTS 29 30 #include "dm_services_types.h" 31 #include "dc.h" 32 #include "link_enc_cfg.h" 33 #include "dc/inc/core_types.h" 34 #include "dal_asic_id.h" 35 #include "dmub/dmub_srv.h" 36 #include "dc/inc/hw/dmcu.h" 37 #include "dc/inc/hw/abm.h" 38 #include "dc/dc_dmub_srv.h" 39 #include "dc/dc_edid_parser.h" 40 #include "dc/dc_stat.h" 41 #include "dc/dc_state.h" 42 #include "amdgpu_dm_trace.h" 43 #include "link/protocols/link_dpcd.h" 44 #include "link_service_types.h" 45 #include "link/protocols/link_dp_capability.h" 46 #include "link/protocols/link_ddc.h" 47 48 #include "amdgpu.h" 49 #include "amdgpu_display.h" 50 #include "amdgpu_ucode.h" 51 #include "atom.h" 52 #include "amdgpu_dm.h" 53 #include "amdgpu_dm_plane.h" 54 #include "amdgpu_dm_crtc.h" 55 #include "amdgpu_dm_hdcp.h" 56 #include <drm/display/drm_hdcp_helper.h> 57 #include "amdgpu_dm_wb.h" 58 #include "amdgpu_atombios.h" 59 60 #include "amd_shared.h" 61 #include "amdgpu_dm_irq.h" 62 #include "dm_helpers.h" 63 #include "amdgpu_dm_mst_types.h" 64 #if defined(CONFIG_DEBUG_FS) 65 #include "amdgpu_dm_debugfs.h" 66 #endif 67 #include "amdgpu_dm_psr.h" 68 #include "amdgpu_dm_replay.h" 69 #include "amdgpu_dm_backlight.h" 70 #include "amdgpu_dm_audio.h" 71 #include "amdgpu_dm_dmub.h" 72 #include "amdgpu_dm_connector.h" 73 #include "amdgpu_dm_pp_smu.h" 74 #include "amdgpu_dm_freesync.h" 75 #include "amdgpu_dm_cursor.h" 76 77 #include "ivsrcid/ivsrcid_vislands30.h" 78 79 #include <linux/backlight.h> 80 #include <linux/module.h> 81 #include <linux/moduleparam.h> 82 #include <linux/types.h> 83 #include <linux/pm_runtime.h> 84 #include <linux/pci.h> 85 #include <linux/power_supply.h> 86 #include <linux/firmware.h> 87 #include <linux/component.h> 88 #include <linux/sort.h> 89 90 #include <drm/drm_privacy_screen_consumer.h> 91 #include <drm/display/drm_dp_mst_helper.h> 92 #include <drm/display/drm_hdmi_helper.h> 93 #include <drm/drm_atomic.h> 94 #include <drm/drm_atomic_uapi.h> 95 #include <drm/drm_atomic_helper.h> 96 #include <drm/drm_blend.h> 97 #include <drm/drm_fixed.h> 98 #include <drm/drm_fourcc.h> 99 #include <drm/drm_edid.h> 100 #include <drm/drm_eld.h> 101 #include <drm/drm_mode.h> 102 #include <drm/drm_utils.h> 103 #include <drm/drm_vblank.h> 104 #include <drm/drm_colorop.h> 105 #include <drm/drm_gem_atomic_helper.h> 106 107 #include <media/cec-notifier.h> 108 #include <acpi/video.h> 109 110 #include "ivsrcid/dcn/irqsrcs_dcn_1_0.h" 111 112 #include "modules/inc/mod_freesync.h" 113 #include "modules/inc/mod_power.h" 114 #include "modules/power/power_helpers.h" 115 116 MODULE_FIRMWARE(FIRMWARE_RAVEN_DMCU); 117 MODULE_FIRMWARE(FIRMWARE_NAVI12_DMCU); 118 119 /** 120 * DOC: overview 121 * 122 * The AMDgpu display manager, **amdgpu_dm** (or even simpler, 123 * **dm**) sits between DRM and DC. It acts as a liaison, converting DRM 124 * requests into DC requests, and DC responses into DRM responses. 125 * 126 * The root control structure is &struct amdgpu_display_manager. 127 */ 128 129 /* basic init/fini API */ 130 static int amdgpu_dm_init(struct amdgpu_device *adev); 131 static void amdgpu_dm_fini(struct amdgpu_device *adev); 132 133 /* 134 * initializes drm_device display related structures, based on the information 135 * provided by DAL. The drm strcutures are: drm_crtc, drm_connector, 136 * drm_encoder, drm_mode_config 137 * 138 * Returns 0 on success 139 */ 140 static int amdgpu_dm_initialize_drm_device(struct amdgpu_device *adev); 141 /* removes and deallocates the drm structures, created by the above function */ 142 static void amdgpu_dm_destroy_drm_device(struct amdgpu_display_manager *dm); 143 144 static int amdgpu_dm_atomic_setup_commit(struct drm_atomic_commit *state); 145 static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_commit *state); 146 STATIC_IFN_KUNIT void dm_enable_per_frame_crtc_master_sync(struct dc_state *context); 147 148 static int amdgpu_dm_atomic_check(struct drm_device *dev, 149 struct drm_atomic_commit *state); 150 151 static inline void amdgpu_dm_exit_ips_for_hw_access(struct dc *dc) 152 { 153 if (dc->ctx->dmub_srv && !dc->ctx->dmub_srv->idle_exit_counter) 154 dc_exit_ips_for_hw_access(dc); 155 } 156 157 /* 158 * dm_vblank_get_counter 159 * 160 * @brief 161 * Get counter for number of vertical blanks 162 * 163 * @param 164 * struct amdgpu_device *adev - [in] desired amdgpu device 165 * int disp_idx - [in] which CRTC to get the counter from 166 * 167 * @return 168 * Counter for vertical blanks 169 */ 170 STATIC_IFN_KUNIT u32 dm_vblank_get_counter(struct amdgpu_device *adev, int crtc) 171 { 172 struct amdgpu_crtc *acrtc = NULL; 173 174 if (crtc >= adev->mode_info.num_crtc) 175 return 0; 176 177 acrtc = adev->mode_info.crtcs[crtc]; 178 179 if (!acrtc->dm_irq_params.stream) { 180 drm_err(adev_to_drm(adev), "dc_stream_state is NULL for crtc '%d'!\n", 181 crtc); 182 return 0; 183 } 184 185 return dc_stream_get_vblank_counter(acrtc->dm_irq_params.stream); 186 } 187 EXPORT_IF_KUNIT(dm_vblank_get_counter); 188 189 STATIC_IFN_KUNIT int dm_crtc_get_scanoutpos(struct amdgpu_device *adev, int crtc, 190 u32 *vbl, u32 *position) 191 { 192 u32 v_blank_start = 0, v_blank_end = 0, h_position = 0, v_position = 0; 193 struct amdgpu_crtc *acrtc = NULL; 194 struct dc *dc = adev->dm.dc; 195 196 if ((crtc < 0) || (crtc >= adev->mode_info.num_crtc)) 197 return -EINVAL; 198 199 acrtc = adev->mode_info.crtcs[crtc]; 200 201 if (!acrtc->dm_irq_params.stream) { 202 drm_err(adev_to_drm(adev), "dc_stream_state is NULL for crtc '%d'!\n", 203 crtc); 204 return 0; 205 } 206 207 if (dc && dc->caps.ips_support && dc->idle_optimizations_allowed) 208 dc_allow_idle_optimizations(dc, false); 209 210 /* 211 * TODO rework base driver to use values directly. 212 * for now parse it back into reg-format 213 */ 214 dc_stream_get_scanoutpos(acrtc->dm_irq_params.stream, 215 &v_blank_start, 216 &v_blank_end, 217 &h_position, 218 &v_position); 219 220 *position = v_position | (h_position << 16); 221 *vbl = v_blank_start | (v_blank_end << 16); 222 223 return 0; 224 } 225 EXPORT_IF_KUNIT(dm_crtc_get_scanoutpos); 226 227 STATIC_IFN_KUNIT bool dm_is_idle(struct amdgpu_ip_block *ip_block) 228 { 229 /* XXX todo */ 230 return true; 231 } 232 EXPORT_IF_KUNIT(dm_is_idle); 233 234 STATIC_IFN_KUNIT int dm_wait_for_idle(struct amdgpu_ip_block *ip_block) 235 { 236 /* XXX todo */ 237 return 0; 238 } 239 EXPORT_IF_KUNIT(dm_wait_for_idle); 240 241 STATIC_IFN_KUNIT int dm_soft_reset(struct amdgpu_ip_block *ip_block) 242 { 243 /* XXX todo */ 244 return 0; 245 } 246 EXPORT_IF_KUNIT(dm_soft_reset); 247 248 /* 249 * DC will program planes with their z-order determined by their ordering 250 * in the dc_surface_updates array. This comparator is used to sort them 251 * by descending zpos. 252 */ 253 STATIC_IFN_KUNIT int dm_plane_layer_index_cmp(const void *a, const void *b) 254 { 255 const struct dc_surface_update *sa = (struct dc_surface_update *)a; 256 const struct dc_surface_update *sb = (struct dc_surface_update *)b; 257 258 /* Sort by descending dc_plane layer_index (i.e. normalized_zpos) */ 259 return sb->surface->layer_index - sa->surface->layer_index; 260 } 261 EXPORT_IF_KUNIT(dm_plane_layer_index_cmp); 262 263 /** 264 * update_planes_and_stream_adapter() - Send planes to be updated in DC 265 * 266 * DC has a generic way to update planes and stream via 267 * dc_update_planes_and_stream function; however, DM might need some 268 * adjustments and preparation before calling it. This function is a wrapper 269 * for the dc_update_planes_and_stream that does any required configuration 270 * before passing control to DC. 271 * 272 * @dc: Display Core control structure 273 * @update_type: specify whether it is FULL/MEDIUM/FAST update 274 * @planes_count: planes count to update 275 * @stream: stream state 276 * @stream_update: stream update 277 * @array_of_surface_update: dc surface update pointer 278 * 279 */ 280 static inline bool update_planes_and_stream_adapter(struct dc *dc, 281 int update_type, 282 int planes_count, 283 struct dc_stream_state *stream, 284 struct dc_stream_update *stream_update, 285 struct dc_surface_update *array_of_surface_update) 286 { 287 sort(array_of_surface_update, planes_count, 288 sizeof(*array_of_surface_update), dm_plane_layer_index_cmp, NULL); 289 290 /* 291 * Previous frame finished and HW is ready for optimization. 292 */ 293 dc_post_update_surfaces_to_stream(dc); 294 295 return dc_update_planes_and_stream(dc, 296 array_of_surface_update, 297 planes_count, 298 stream, 299 stream_update); 300 } 301 302 STATIC_IFN_KUNIT int dm_set_clockgating_state(struct amdgpu_ip_block *ip_block, 303 enum amd_clockgating_state state) 304 { 305 return 0; 306 } 307 EXPORT_IF_KUNIT(dm_set_clockgating_state); 308 309 STATIC_IFN_KUNIT int dm_set_powergating_state(struct amdgpu_ip_block *ip_block, 310 enum amd_powergating_state state) 311 { 312 return 0; 313 } 314 EXPORT_IF_KUNIT(dm_set_powergating_state); 315 316 /* Prototypes of private functions */ 317 static int dm_early_init(struct amdgpu_ip_block *ip_block); 318 319 /* Allocate memory for FBC compressed data */ 320 static void mmhub_read_system_context(struct amdgpu_device *adev, struct dc_phy_addr_space_config *pa_config) 321 { 322 u64 pt_base; 323 u32 logical_addr_low; 324 u32 logical_addr_high; 325 u32 agp_base, agp_bot, agp_top; 326 PHYSICAL_ADDRESS_LOC page_table_start, page_table_end, page_table_base; 327 328 memset(pa_config, 0, sizeof(*pa_config)); 329 330 agp_base = 0; 331 agp_bot = adev->gmc.agp_start >> 24; 332 agp_top = adev->gmc.agp_end >> 24; 333 334 /* AGP aperture is disabled */ 335 if (agp_bot > agp_top) { 336 logical_addr_low = adev->gmc.fb_start >> 18; 337 if (adev->apu_flags & (AMD_APU_IS_RAVEN2 | 338 AMD_APU_IS_RENOIR | 339 AMD_APU_IS_GREEN_SARDINE)) 340 /* 341 * Raven2 has a HW issue that it is unable to use the vram which 342 * is out of MC_VM_SYSTEM_APERTURE_HIGH_ADDR. So here is the 343 * workaround that increase system aperture high address (add 1) 344 * to get rid of the VM fault and hardware hang. 345 */ 346 logical_addr_high = (adev->gmc.fb_end >> 18) + 0x1; 347 else 348 logical_addr_high = adev->gmc.fb_end >> 18; 349 } else { 350 logical_addr_low = min(adev->gmc.fb_start, adev->gmc.agp_start) >> 18; 351 if (adev->apu_flags & (AMD_APU_IS_RAVEN2 | 352 AMD_APU_IS_RENOIR | 353 AMD_APU_IS_GREEN_SARDINE)) 354 /* 355 * Raven2 has a HW issue that it is unable to use the vram which 356 * is out of MC_VM_SYSTEM_APERTURE_HIGH_ADDR. So here is the 357 * workaround that increase system aperture high address (add 1) 358 * to get rid of the VM fault and hardware hang. 359 */ 360 logical_addr_high = max((adev->gmc.fb_end >> 18) + 0x1, adev->gmc.agp_end >> 18); 361 else 362 logical_addr_high = max(adev->gmc.fb_end, adev->gmc.agp_end) >> 18; 363 } 364 365 pt_base = amdgpu_gmc_pd_addr(adev->gart.bo); 366 367 page_table_start.high_part = upper_32_bits(adev->gmc.gart_start >> 368 AMDGPU_GPU_PAGE_SHIFT); 369 page_table_start.low_part = lower_32_bits(adev->gmc.gart_start >> 370 AMDGPU_GPU_PAGE_SHIFT); 371 page_table_end.high_part = upper_32_bits(adev->gmc.gart_end >> 372 AMDGPU_GPU_PAGE_SHIFT); 373 page_table_end.low_part = lower_32_bits(adev->gmc.gart_end >> 374 AMDGPU_GPU_PAGE_SHIFT); 375 page_table_base.high_part = upper_32_bits(pt_base); 376 page_table_base.low_part = lower_32_bits(pt_base); 377 378 pa_config->system_aperture.start_addr = (uint64_t)logical_addr_low << 18; 379 pa_config->system_aperture.end_addr = (uint64_t)logical_addr_high << 18; 380 381 pa_config->system_aperture.agp_base = (uint64_t)agp_base << 24; 382 pa_config->system_aperture.agp_bot = (uint64_t)agp_bot << 24; 383 pa_config->system_aperture.agp_top = (uint64_t)agp_top << 24; 384 385 pa_config->system_aperture.fb_base = adev->gmc.fb_start; 386 pa_config->system_aperture.fb_offset = adev->vm_manager.vram_base_offset; 387 pa_config->system_aperture.fb_top = adev->gmc.fb_end; 388 389 pa_config->gart_config.page_table_start_addr = page_table_start.quad_part << 12; 390 pa_config->gart_config.page_table_end_addr = page_table_end.quad_part << 12; 391 pa_config->gart_config.page_table_base_addr = page_table_base.quad_part; 392 393 pa_config->is_hvm_enabled = adev->mode_info.gpu_vm_support; 394 395 } 396 397 static int amdgpu_dm_init_power_module(struct amdgpu_display_manager *dm) 398 { 399 struct mod_power_init_params init_data[MAX_NUM_EDP]; 400 401 if (dm->num_of_edps == 0) { 402 drm_dbg_driver( 403 dm->ddev, 404 "amdgpu: No eDP detected, skip initializing power module\n"); 405 return 0; 406 } 407 408 /* Initialize all the power module parameters */ 409 for (int i = 0; i < dm->num_of_edps; i++) { 410 init_data[i].allow_psr_smu_optimizations = 411 !!(amdgpu_dc_feature_mask & DC_PSR_ALLOW_SMU_OPT); 412 init_data[i].allow_psr_multi_disp_optimizations = 413 !!(amdgpu_dc_feature_mask & DC_PSR_ALLOW_MULTI_DISP_OPT); 414 /* See dm_late_init */ 415 init_data[i].backlight_ramping_override = false; 416 init_data[i].backlight_ramping_start = 0xCCCC; 417 init_data[i].backlight_ramping_reduction = 0xCCCCCCCC; 418 init_data[i].def_varibright_level = 0; 419 init_data[i].abm_config_setting = 0; 420 init_data[i].num_backlight_levels = 101; 421 init_data[i].use_nits_based_brightness = false; 422 init_data[i].panel_max_millinits = 0; 423 init_data[i].panel_min_millinits = 0; 424 init_data[i].disable_fractional_pwm = 425 !(amdgpu_dc_feature_mask & DC_DISABLE_FRACTIONAL_PWM_MASK); 426 init_data[i].use_custom_backlight_caps = false; 427 init_data[i].custom_backlight_caps_config_no = 0; 428 init_data[i].use_linear_backlight_curve = false; 429 init_data[i].def_varibright_enable = 0; 430 init_data[i].varibright_level = 0; 431 /* 432 * Power module uses 16-bit backlight levels (0xFFFF max) rather 433 * than 8-bit(0XFF max) 434 */ 435 init_data[i].min_backlight_pwm = 436 dm->backlight_caps[i].min_input_signal * 0x101; 437 init_data[i].max_backlight_pwm = 438 dm->backlight_caps[i].max_input_signal * 0x101; 439 init_data[i].min_abm_backlight = 440 dm->backlight_caps[i].min_input_signal * 0x101; 441 442 /* Min backlight level after ABM reduction, Don't allow below 1% 443 * 0xFFFF x 0.01 = 0x28F 444 */ 445 init_data[i].min_abm_backlight = (init_data[i].min_abm_backlight < 0x28F) ? 446 0x28F : init_data[i].min_abm_backlight; 447 } 448 449 dm->power_module = mod_power_create(dm->dc, init_data, dm->num_of_edps); 450 if (!dm->power_module) { 451 drm_err(dm->ddev, "amdgpu: Error allocating memory for power module\n"); 452 return -ENOMEM; 453 } 454 455 mod_power_hw_init(dm->power_module); 456 drm_dbg_driver(dm->ddev, "amdgpu: Power module init done\n"); 457 458 return 0; 459 } 460 461 static int amdgpu_dm_init(struct amdgpu_device *adev) 462 { 463 struct dc_init_data init_data; 464 struct dc_callback_init init_params; 465 int r; 466 467 adev->dm.ddev = adev_to_drm(adev); 468 adev->dm.adev = adev; 469 470 /* Zero all the fields */ 471 memset(&init_data, 0, sizeof(init_data)); 472 memset(&init_params, 0, sizeof(init_params)); 473 474 mutex_init(&adev->dm.dpia_aux_lock); 475 mutex_init(&adev->dm.dc_lock); 476 mutex_init(&adev->dm.audio_lock); 477 478 spin_lock_init(&adev->dm.dmub_lock); 479 480 if (amdgpu_dm_irq_init(adev)) { 481 drm_err(adev_to_drm(adev), "failed to initialize DM IRQ support.\n"); 482 goto error; 483 } 484 485 /* special handling for early revisions of GC 11.5.4 */ 486 if (amdgpu_ip_version(adev, GC_HWIP, 0) == IP_VERSION(11, 5, 4)) 487 init_data.asic_id.chip_family = AMDGPU_FAMILY_GC_11_5_4; 488 else 489 init_data.asic_id.chip_family = adev->family; 490 491 init_data.asic_id.pci_revision_id = adev->pdev->revision; 492 init_data.asic_id.hw_internal_rev = adev->external_rev_id; 493 init_data.asic_id.chip_id = adev->pdev->device; 494 495 init_data.asic_id.vram_width = adev->gmc.vram_width; 496 /* TODO: initialize init_data.asic_id.vram_type here!!!! */ 497 init_data.asic_id.atombios_base_address = 498 adev->mode_info.atom_context->bios; 499 500 init_data.driver = adev; 501 502 /* cgs_device was created in dm_sw_init() */ 503 init_data.cgs_device = adev->dm.cgs_device; 504 505 init_data.dce_environment = DCE_ENV_PRODUCTION_DRV; 506 507 switch (amdgpu_ip_version(adev, DCE_HWIP, 0)) { 508 case IP_VERSION(2, 1, 0): 509 switch (adev->dm.dmcub_fw_version) { 510 case 0: /* development */ 511 case 0x1: /* linux-firmware.git hash 6d9f399 */ 512 case 0x01000000: /* linux-firmware.git hash 9a0b0f4 */ 513 init_data.flags.disable_dmcu = false; 514 break; 515 default: 516 init_data.flags.disable_dmcu = true; 517 } 518 break; 519 case IP_VERSION(2, 0, 3): 520 init_data.flags.disable_dmcu = true; 521 break; 522 default: 523 break; 524 } 525 526 /* APU support S/G display by default except: 527 * ASICs before Carrizo, 528 * RAVEN1 (Users reported stability issue) 529 */ 530 531 if (adev->asic_type < CHIP_CARRIZO) { 532 init_data.flags.gpu_vm_support = false; 533 } else if (adev->asic_type == CHIP_RAVEN) { 534 if (adev->apu_flags & AMD_APU_IS_RAVEN) 535 init_data.flags.gpu_vm_support = false; 536 else 537 init_data.flags.gpu_vm_support = (amdgpu_sg_display != 0); 538 } else { 539 if (amdgpu_ip_version(adev, DCE_HWIP, 0) == IP_VERSION(2, 0, 3)) 540 init_data.flags.gpu_vm_support = (amdgpu_sg_display == 1); 541 else 542 init_data.flags.gpu_vm_support = 543 (amdgpu_sg_display != 0) && (adev->flags & AMD_IS_APU); 544 } 545 546 adev->mode_info.gpu_vm_support = init_data.flags.gpu_vm_support; 547 548 if (amdgpu_dc_feature_mask & DC_FBC_MASK) 549 init_data.flags.fbc_support = true; 550 551 if (amdgpu_dc_feature_mask & DC_MULTI_MON_PP_MCLK_SWITCH_MASK) 552 init_data.flags.multi_mon_pp_mclk_switch = true; 553 554 if (amdgpu_dc_feature_mask & DC_DISABLE_FRACTIONAL_PWM_MASK) 555 init_data.flags.disable_fractional_pwm = true; 556 557 if (amdgpu_dc_feature_mask & DC_EDP_NO_POWER_SEQUENCING) 558 init_data.flags.edp_no_power_sequencing = true; 559 560 if (amdgpu_dc_feature_mask & DC_DISABLE_LTTPR_DP1_4A) 561 init_data.flags.allow_lttpr_non_transparent_mode.bits.DP1_4A = true; 562 if (amdgpu_dc_feature_mask & DC_DISABLE_LTTPR_DP2_0) 563 init_data.flags.allow_lttpr_non_transparent_mode.bits.DP2_0 = true; 564 565 if (amdgpu_dc_feature_mask & DC_FRL_MASK) 566 init_data.flags.enable_frl = true; 567 568 init_data.flags.seamless_boot_edp_requested = false; 569 570 if (amdgpu_device_seamless_boot_supported(adev)) { 571 init_data.flags.seamless_boot_edp_requested = true; 572 init_data.flags.allow_seamless_boot_optimization = true; 573 drm_dbg(adev->dm.ddev, "Seamless boot requested\n"); 574 } 575 576 init_data.flags.enable_mipi_converter_optimization = true; 577 578 init_data.dcn_reg_offsets = adev->reg_offset[DCE_HWIP][0]; 579 init_data.nbio_reg_offsets = adev->reg_offset[NBIO_HWIP][0]; 580 init_data.clk_reg_offsets = adev->reg_offset[CLK_HWIP][0]; 581 582 if (amdgpu_dc_debug_mask & DC_DISABLE_IPS) 583 init_data.flags.disable_ips = DMUB_IPS_DISABLE_ALL; 584 else if (amdgpu_dc_debug_mask & DC_DISABLE_IPS_DYNAMIC) 585 init_data.flags.disable_ips = DMUB_IPS_DISABLE_DYNAMIC; 586 else if (amdgpu_dc_debug_mask & DC_DISABLE_IPS2_DYNAMIC) 587 init_data.flags.disable_ips = DMUB_IPS_RCG_IN_ACTIVE_IPS2_IN_OFF; 588 else if (amdgpu_dc_debug_mask & DC_FORCE_IPS_ENABLE) 589 init_data.flags.disable_ips = DMUB_IPS_ENABLE; 590 else 591 init_data.flags.disable_ips = dm_get_default_ips_mode(adev); 592 593 init_data.flags.disable_ips_in_vpb = 0; 594 595 /* DCN35 and above supports dynamic DTBCLK switch */ 596 if (amdgpu_ip_version(adev, DCE_HWIP, 0) >= IP_VERSION(3, 5, 0)) 597 init_data.flags.allow_0_dtb_clk = true; 598 599 /* Enable DWB for tested platforms only */ 600 if (amdgpu_ip_version(adev, DCE_HWIP, 0) >= IP_VERSION(3, 0, 0)) 601 init_data.num_virtual_links = 1; 602 603 /* DCN42 and above dpia switch to unified link training path */ 604 if (amdgpu_ip_version(adev, DCE_HWIP, 0) >= IP_VERSION(4, 2, 0)) { 605 init_data.flags.consolidated_dpia_dp_lt = true; 606 init_data.flags.enable_dpia_pre_training = true; 607 init_data.flags.unify_link_enc_assignment = true; 608 init_data.flags.usb4_bw_alloc_support = true; 609 } 610 retrieve_dmi_info(&adev->dm); 611 if (adev->dm.edp0_on_dp1_quirk) 612 init_data.flags.support_edp0_on_dp1 = true; 613 614 if (adev->dm.bb_from_dmub) 615 init_data.bb_from_dmub = adev->dm.bb_from_dmub; 616 else 617 init_data.bb_from_dmub = NULL; 618 619 /* Display Core create. */ 620 adev->dm.dc = dc_create(&init_data); 621 622 if (adev->dm.dc) { 623 drm_info(adev_to_drm(adev), "Display Core v%s initialized on %s\n", DC_VER, 624 dce_version_to_string(adev->dm.dc->ctx->dce_version)); 625 } else { 626 drm_info(adev_to_drm(adev), "Display Core failed to initialize with v%s!\n", DC_VER); 627 goto error; 628 } 629 630 if (amdgpu_dc_debug_mask & DC_DISABLE_PIPE_SPLIT) { 631 adev->dm.dc->debug.force_single_disp_pipe_split = false; 632 adev->dm.dc->debug.pipe_split_policy = MPC_SPLIT_AVOID; 633 } 634 635 if (adev->asic_type != CHIP_CARRIZO && adev->asic_type != CHIP_STONEY) 636 adev->dm.dc->debug.disable_stutter = amdgpu_pp_feature_mask & PP_STUTTER_MODE ? false : true; 637 if (dm_should_disable_stutter(adev->pdev)) 638 adev->dm.dc->debug.disable_stutter = true; 639 640 if (amdgpu_dc_debug_mask & DC_DISABLE_STUTTER) 641 adev->dm.dc->debug.disable_stutter = true; 642 643 if (amdgpu_dc_debug_mask & DC_DISABLE_DSC) 644 adev->dm.dc->debug.disable_dsc = true; 645 646 if (amdgpu_dc_debug_mask & DC_DISABLE_CLOCK_GATING) 647 adev->dm.dc->debug.disable_clock_gate = true; 648 649 if (amdgpu_dc_debug_mask & DC_FORCE_SUBVP_MCLK_SWITCH) 650 adev->dm.dc->debug.force_subvp_mclk_switch = true; 651 652 if (amdgpu_dc_debug_mask & DC_DISABLE_SUBVP_FAMS) { 653 adev->dm.dc->debug.force_disable_subvp = true; 654 adev->dm.dc->debug.fams2_config.bits.enable = false; 655 } 656 657 if (amdgpu_dc_debug_mask & DC_ENABLE_DML2) { 658 adev->dm.dc->debug.using_dml2 = true; 659 adev->dm.dc->debug.using_dml21 = true; 660 } 661 662 if (amdgpu_dc_debug_mask & DC_HDCP_LC_FORCE_FW_ENABLE) 663 adev->dm.dc->debug.hdcp_lc_force_fw_enable = true; 664 665 if (amdgpu_dc_debug_mask & DC_HDCP_LC_ENABLE_SW_FALLBACK) 666 adev->dm.dc->debug.hdcp_lc_enable_sw_fallback = true; 667 668 if (amdgpu_dc_debug_mask & DC_SKIP_DETECTION_LT) 669 adev->dm.dc->debug.skip_detection_link_training = true; 670 671 adev->dm.dc->debug.visual_confirm = amdgpu_dc_visual_confirm; 672 673 /* TODO: Remove after DP2 receiver gets proper support of Cable ID feature */ 674 adev->dm.dc->debug.ignore_cable_id = true; 675 676 if (adev->dm.dc->caps.dp_hdmi21_pcon_support) 677 drm_info(adev_to_drm(adev), "DP-HDMI FRL PCON supported\n"); 678 679 r = dm_dmub_hw_init(adev); 680 if (r) { 681 drm_err(adev_to_drm(adev), "DMUB interface failed to initialize: status=%d\n", r); 682 goto error; 683 } 684 685 dc_hardware_init(adev->dm.dc); 686 687 /* GOP/vBIOS may leave an OPTC enabled for a display present at power-on 688 * but no longer driven (e.g. an external DP unplugged at boot). Such a 689 * dangling pipe keeps DCN out of idle and blocks s0i3. Power it down 690 * here when nothing needs to be preserved. 691 */ 692 if (adev->flags & AMD_IS_APU) 693 dc_disable_dangling_timing_generators(adev->dm.dc); 694 695 adev->dm.hpd_rx_offload_wq = amdgpu_dm_hpd_rx_irq_create_workqueue(adev); 696 if (!adev->dm.hpd_rx_offload_wq) { 697 drm_err(adev_to_drm(adev), "failed to create hpd rx offload workqueue.\n"); 698 goto error; 699 } 700 701 if ((adev->flags & AMD_IS_APU) && (adev->asic_type >= CHIP_CARRIZO)) { 702 struct dc_phy_addr_space_config pa_config; 703 704 mmhub_read_system_context(adev, &pa_config); 705 706 // Call the DC init_memory func 707 dc_setup_system_context(adev->dm.dc, &pa_config); 708 } 709 710 adev->dm.freesync_module = mod_freesync_create(adev->dm.dc); 711 if (!adev->dm.freesync_module) { 712 drm_err(adev_to_drm(adev), 713 "failed to initialize freesync_module.\n"); 714 } else 715 drm_dbg_driver(adev_to_drm(adev), "freesync_module init done %p.\n", 716 adev->dm.freesync_module); 717 718 amdgpu_dm_init_color_mod(); 719 720 if (adev->dm.dc->caps.max_links > 0) { 721 adev->dm.vblank_control_workqueue = 722 create_singlethread_workqueue("dm_vblank_control_workqueue"); 723 if (!adev->dm.vblank_control_workqueue) 724 drm_err(adev_to_drm(adev), "failed to initialize vblank_workqueue.\n"); 725 } 726 727 if (adev->dm.dc->caps.ips_support && 728 adev->dm.dc->config.disable_ips != DMUB_IPS_DISABLE_ALL) 729 adev->dm.idle_workqueue = idle_create_workqueue(adev); 730 731 if (adev->dm.dc->caps.max_links > 0 && adev->family >= AMDGPU_FAMILY_RV) { 732 adev->dm.hdcp_workqueue = hdcp_create_workqueue(adev, &init_params.cp_psp, adev->dm.dc); 733 734 if (!adev->dm.hdcp_workqueue) 735 drm_err(adev_to_drm(adev), "failed to initialize hdcp_workqueue.\n"); 736 else 737 drm_dbg_driver(adev_to_drm(adev), 738 "hdcp_workqueue init done %p.\n", 739 adev->dm.hdcp_workqueue); 740 741 dc_init_callbacks(adev->dm.dc, &init_params); 742 } 743 if (adev->dm.dc->caps.max_links > 0) { 744 adev->dm.hdmi_frl_status_polling_wq = 745 create_singlethread_workqueue("hdmi_frl_status_polling_workqueue"); 746 if (!adev->dm.hdmi_frl_status_polling_wq) 747 drm_err(adev_to_drm(adev), "failed to initialize hdmi_frl_status_polling_workqueue\n"); 748 } 749 if (dc_is_dmub_outbox_supported(adev->dm.dc)) { 750 init_completion(&adev->dm.dmub_aux_transfer_done); 751 adev->dm.dmub_notify = kzalloc_obj(struct dmub_notification); 752 if (!adev->dm.dmub_notify) { 753 drm_info(adev_to_drm(adev), "fail to allocate adev->dm.dmub_notify"); 754 goto error; 755 } 756 757 adev->dm.delayed_hpd_wq = create_singlethread_workqueue("amdgpu_dm_hpd_wq"); 758 if (!adev->dm.delayed_hpd_wq) { 759 drm_err(adev_to_drm(adev), "failed to create hpd offload workqueue.\n"); 760 goto error; 761 } 762 763 amdgpu_dm_outbox_init(adev); 764 if (!dm_register_dmub_notify_callback(adev, DMUB_NOTIFICATION_AUX_REPLY, 765 dm_dmub_aux_setconfig_callback, false)) { 766 drm_err(adev_to_drm(adev), "fail to register dmub aux callback"); 767 goto error; 768 } 769 770 for (size_t i = 0; i < ARRAY_SIZE(adev->dm.fused_io); i++) 771 init_completion(&adev->dm.fused_io[i].replied); 772 773 if (!dm_register_dmub_notify_callback(adev, DMUB_NOTIFICATION_FUSED_IO, 774 dm_dmub_aux_fused_io_callback, false)) { 775 drm_err(adev_to_drm(adev), "fail to register dmub fused io callback"); 776 goto error; 777 } 778 /* Enable outbox notification only after IRQ handlers are registered and DMUB is alive. 779 * It is expected that DMUB will resend any pending notifications at this point. Note 780 * that hpd and hpd_irq handler registration are deferred to 781 * amdgpu_dm_register_hpd_handlers() to align legacy interface initialization 782 * sequence. Connection status will be proactivly detected once in the 783 * amdgpu_dm_initialize_drm_device. 784 */ 785 dc_enable_dmub_outbox(adev->dm.dc); 786 787 /* DPIA trace goes to dmesg logs only if outbox is enabled */ 788 if (amdgpu_dc_debug_mask & DC_ENABLE_DPIA_TRACE) 789 dc_dmub_srv_enable_dpia_trace(adev->dm.dc); 790 } 791 792 if (amdgpu_dm_initialize_drm_device(adev)) { 793 drm_err(adev_to_drm(adev), 794 "failed to initialize sw for display support.\n"); 795 goto error; 796 } 797 798 if (amdgpu_dm_init_power_module(&adev->dm)) 799 goto error; 800 801 /* create fake encoders for MST */ 802 dm_dp_create_fake_mst_encoders(adev); 803 804 /* TODO: Add_display_info? */ 805 806 /* TODO use dynamic cursor width */ 807 adev_to_drm(adev)->mode_config.cursor_width = adev->dm.dc->caps.max_cursor_size; 808 adev_to_drm(adev)->mode_config.cursor_height = adev->dm.dc->caps.max_cursor_size; 809 810 if (drm_vblank_init(adev_to_drm(adev), adev->dm.display_indexes_num)) { 811 drm_err(adev_to_drm(adev), 812 "failed to initialize vblank for display support.\n"); 813 goto error; 814 } 815 816 #if defined(CONFIG_DRM_AMD_SECURE_DISPLAY) 817 amdgpu_dm_crtc_secure_display_create_contexts(adev); 818 if (!adev->dm.secure_display_ctx.crtc_ctx) 819 drm_err(adev_to_drm(adev), "failed to initialize secure display contexts.\n"); 820 821 if (amdgpu_ip_version(adev, DCE_HWIP, 0) >= IP_VERSION(4, 0, 1)) 822 adev->dm.secure_display_ctx.support_mul_roi = true; 823 824 #endif 825 826 drm_dbg_driver(adev_to_drm(adev), "KMS initialized.\n"); 827 828 return 0; 829 error: 830 amdgpu_dm_fini(adev); 831 832 return -EINVAL; 833 } 834 835 static int amdgpu_dm_early_fini(struct amdgpu_ip_block *ip_block) 836 { 837 struct amdgpu_device *adev = ip_block->adev; 838 839 amdgpu_dm_audio_fini(adev); 840 841 return 0; 842 } 843 844 static void amdgpu_dm_fini(struct amdgpu_device *adev) 845 { 846 int i; 847 848 if (adev->dm.vblank_control_workqueue) { 849 destroy_workqueue(adev->dm.vblank_control_workqueue); 850 adev->dm.vblank_control_workqueue = NULL; 851 } 852 853 if (adev->dm.idle_workqueue) { 854 if (adev->dm.idle_workqueue->running) { 855 adev->dm.idle_workqueue->enable = false; 856 flush_work(&adev->dm.idle_workqueue->work); 857 } 858 859 kfree(adev->dm.idle_workqueue); 860 adev->dm.idle_workqueue = NULL; 861 } 862 863 /* 864 * Disable ISM before dc_destroy() invalidates dm->dc. 865 * 866 * Quiesce workers first without dc_lock (they take dc_lock 867 * themselves, so syncing under it would deadlock), then drive the 868 * FSM back to FULL_POWER_RUNNING under dc_lock. 869 */ 870 amdgpu_dm_ism_disable(&adev->dm); 871 scoped_guard(mutex, &adev->dm.dc_lock) 872 amdgpu_dm_ism_force_full_power(&adev->dm); 873 874 amdgpu_dm_destroy_drm_device(&adev->dm); 875 876 #if defined(CONFIG_DRM_AMD_SECURE_DISPLAY) 877 if (adev->dm.secure_display_ctx.crtc_ctx) { 878 for (i = 0; i < adev->mode_info.num_crtc; i++) { 879 if (adev->dm.secure_display_ctx.crtc_ctx[i].crtc) { 880 flush_work(&adev->dm.secure_display_ctx.crtc_ctx[i].notify_ta_work); 881 flush_work(&adev->dm.secure_display_ctx.crtc_ctx[i].forward_roi_work); 882 } 883 } 884 kfree(adev->dm.secure_display_ctx.crtc_ctx); 885 adev->dm.secure_display_ctx.crtc_ctx = NULL; 886 } 887 #endif 888 if (adev->dm.hdcp_workqueue) { 889 hdcp_destroy(&adev->dev->kobj, adev->dm.hdcp_workqueue); 890 adev->dm.hdcp_workqueue = NULL; 891 } 892 893 if (adev->dm.dc) { 894 dc_deinit_callbacks(adev->dm.dc); 895 dc_dmub_srv_destroy(&adev->dm.dc->ctx->dmub_srv); 896 if (dc_enable_dmub_notifications(adev->dm.dc)) { 897 kfree(adev->dm.dmub_notify); 898 adev->dm.dmub_notify = NULL; 899 destroy_workqueue(adev->dm.delayed_hpd_wq); 900 adev->dm.delayed_hpd_wq = NULL; 901 } 902 } 903 904 if (adev->dm.dmub_bo) 905 amdgpu_bo_free_kernel(&adev->dm.dmub_bo, 906 &adev->dm.dmub_bo_gpu_addr, 907 &adev->dm.dmub_bo_cpu_addr); 908 909 if (adev->dm.boot_time_crc_info.bo_ptr) 910 amdgpu_bo_free_kernel(&adev->dm.boot_time_crc_info.bo_ptr, 911 &adev->dm.boot_time_crc_info.gpu_addr, 912 &adev->dm.boot_time_crc_info.cpu_addr); 913 914 if (adev->dm.hpd_rx_offload_wq && adev->dm.dc) { 915 for (i = 0; i < adev->dm.dc->caps.max_links; i++) { 916 if (adev->dm.hpd_rx_offload_wq[i].wq) { 917 destroy_workqueue(adev->dm.hpd_rx_offload_wq[i].wq); 918 adev->dm.hpd_rx_offload_wq[i].wq = NULL; 919 } 920 } 921 922 kfree(adev->dm.hpd_rx_offload_wq); 923 adev->dm.hpd_rx_offload_wq = NULL; 924 } 925 926 amdgpu_dm_irq_fini(adev); 927 928 /* DC Destroy TODO: Replace destroy DAL */ 929 if (adev->dm.dc) 930 dc_destroy(&adev->dm.dc); 931 932 if (adev->dm.cgs_device) { 933 amdgpu_cgs_destroy_device(adev->dm.cgs_device); 934 adev->dm.cgs_device = NULL; 935 } 936 if (adev->dm.freesync_module) { 937 mod_freesync_destroy(adev->dm.freesync_module); 938 adev->dm.freesync_module = NULL; 939 } 940 941 if (adev->dm.power_module) { 942 mod_power_destroy(adev->dm.power_module); 943 adev->dm.power_module = NULL; 944 } 945 mutex_destroy(&adev->dm.audio_lock); 946 mutex_destroy(&adev->dm.dc_lock); 947 mutex_destroy(&adev->dm.dpia_aux_lock); 948 } 949 950 static int load_dmcu_fw(struct amdgpu_device *adev) 951 { 952 const char *fw_name_dmcu = NULL; 953 int r; 954 const struct dmcu_firmware_header_v1_0 *hdr; 955 956 switch (adev->asic_type) { 957 #if defined(CONFIG_DRM_AMD_DC_SI) 958 case CHIP_TAHITI: 959 case CHIP_PITCAIRN: 960 case CHIP_VERDE: 961 case CHIP_OLAND: 962 #endif 963 case CHIP_BONAIRE: 964 case CHIP_HAWAII: 965 case CHIP_KAVERI: 966 case CHIP_KABINI: 967 case CHIP_MULLINS: 968 case CHIP_TONGA: 969 case CHIP_FIJI: 970 case CHIP_CARRIZO: 971 case CHIP_STONEY: 972 case CHIP_POLARIS11: 973 case CHIP_POLARIS10: 974 case CHIP_POLARIS12: 975 case CHIP_VEGAM: 976 case CHIP_VEGA10: 977 case CHIP_VEGA12: 978 case CHIP_VEGA20: 979 return 0; 980 case CHIP_NAVI12: 981 fw_name_dmcu = FIRMWARE_NAVI12_DMCU; 982 break; 983 case CHIP_RAVEN: 984 if (ASICREV_IS_PICASSO(adev->external_rev_id)) 985 fw_name_dmcu = FIRMWARE_RAVEN_DMCU; 986 else if (ASICREV_IS_RAVEN2(adev->external_rev_id)) 987 fw_name_dmcu = FIRMWARE_RAVEN_DMCU; 988 else 989 return 0; 990 break; 991 default: 992 switch (amdgpu_ip_version(adev, DCE_HWIP, 0)) { 993 case IP_VERSION(2, 0, 2): 994 case IP_VERSION(2, 0, 3): 995 case IP_VERSION(2, 0, 0): 996 case IP_VERSION(2, 1, 0): 997 case IP_VERSION(3, 0, 0): 998 case IP_VERSION(3, 0, 2): 999 case IP_VERSION(3, 0, 3): 1000 case IP_VERSION(3, 0, 1): 1001 case IP_VERSION(3, 1, 2): 1002 case IP_VERSION(3, 1, 3): 1003 case IP_VERSION(3, 1, 4): 1004 case IP_VERSION(3, 1, 5): 1005 case IP_VERSION(3, 1, 6): 1006 case IP_VERSION(3, 2, 0): 1007 case IP_VERSION(3, 2, 1): 1008 case IP_VERSION(3, 5, 0): 1009 case IP_VERSION(3, 5, 1): 1010 case IP_VERSION(3, 6, 0): 1011 case IP_VERSION(4, 0, 1): 1012 case IP_VERSION(4, 2, 0): 1013 case IP_VERSION(4, 2, 1): 1014 return 0; 1015 default: 1016 break; 1017 } 1018 drm_err(adev_to_drm(adev), "Unsupported ASIC type: 0x%X\n", adev->asic_type); 1019 return -EINVAL; 1020 } 1021 1022 if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP) { 1023 drm_dbg_kms(adev_to_drm(adev), "dm: DMCU firmware not supported on direct or SMU loading\n"); 1024 return 0; 1025 } 1026 1027 r = amdgpu_ucode_request(adev, &adev->dm.fw_dmcu, AMDGPU_UCODE_REQUIRED, 1028 "%s", fw_name_dmcu); 1029 if (r == -ENODEV) { 1030 /* DMCU firmware is not necessary, so don't raise a fuss if it's missing */ 1031 drm_dbg_kms(adev_to_drm(adev), "dm: DMCU firmware not found\n"); 1032 adev->dm.fw_dmcu = NULL; 1033 return 0; 1034 } 1035 if (r) { 1036 drm_err(adev_to_drm(adev), "amdgpu_dm: Can't validate firmware \"%s\"\n", 1037 fw_name_dmcu); 1038 amdgpu_ucode_release(&adev->dm.fw_dmcu); 1039 return r; 1040 } 1041 1042 hdr = (const struct dmcu_firmware_header_v1_0 *)adev->dm.fw_dmcu->data; 1043 adev->firmware.ucode[AMDGPU_UCODE_ID_DMCU_ERAM].ucode_id = AMDGPU_UCODE_ID_DMCU_ERAM; 1044 adev->firmware.ucode[AMDGPU_UCODE_ID_DMCU_ERAM].fw = adev->dm.fw_dmcu; 1045 adev->firmware.fw_size += 1046 ALIGN(le32_to_cpu(hdr->header.ucode_size_bytes) - le32_to_cpu(hdr->intv_size_bytes), PAGE_SIZE); 1047 1048 adev->firmware.ucode[AMDGPU_UCODE_ID_DMCU_INTV].ucode_id = AMDGPU_UCODE_ID_DMCU_INTV; 1049 adev->firmware.ucode[AMDGPU_UCODE_ID_DMCU_INTV].fw = adev->dm.fw_dmcu; 1050 adev->firmware.fw_size += 1051 ALIGN(le32_to_cpu(hdr->intv_size_bytes), PAGE_SIZE); 1052 1053 adev->dm.dmcu_fw_version = le32_to_cpu(hdr->header.ucode_version); 1054 1055 drm_dbg_kms(adev_to_drm(adev), "PSP loading DMCU firmware\n"); 1056 1057 return 0; 1058 } 1059 1060 static int dm_sw_init(struct amdgpu_ip_block *ip_block) 1061 { 1062 struct amdgpu_device *adev = ip_block->adev; 1063 int r; 1064 1065 adev->dm.cgs_device = amdgpu_cgs_create_device(adev); 1066 1067 if (!adev->dm.cgs_device) { 1068 drm_err(adev_to_drm(adev), "failed to create cgs device.\n"); 1069 return -EINVAL; 1070 } 1071 1072 /* Moved from dm init since we need to use allocations for storing bounding box data */ 1073 INIT_LIST_HEAD(&adev->dm.da_list); 1074 1075 r = dm_dmub_sw_init(adev); 1076 if (r) 1077 return r; 1078 1079 return load_dmcu_fw(adev); 1080 } 1081 1082 static int dm_sw_fini(struct amdgpu_ip_block *ip_block) 1083 { 1084 struct amdgpu_device *adev = ip_block->adev; 1085 struct dal_allocation *da; 1086 1087 list_for_each_entry(da, &adev->dm.da_list, list) { 1088 if (adev->dm.bb_from_dmub == (void *) da->cpu_ptr) { 1089 amdgpu_bo_free_kernel(&da->bo, &da->gpu_addr, &da->cpu_ptr); 1090 list_del(&da->list); 1091 kfree(da); 1092 adev->dm.bb_from_dmub = NULL; 1093 break; 1094 } 1095 } 1096 1097 1098 kfree(adev->dm.dmub_fb_info); 1099 adev->dm.dmub_fb_info = NULL; 1100 1101 if (adev->dm.dmub_srv) { 1102 dmub_srv_destroy(adev->dm.dmub_srv); 1103 kfree(adev->dm.dmub_srv); 1104 adev->dm.dmub_srv = NULL; 1105 } 1106 1107 amdgpu_ucode_release(&adev->dm.dmub_fw); 1108 amdgpu_ucode_release(&adev->dm.fw_dmcu); 1109 1110 return 0; 1111 } 1112 1113 1114 static void amdgpu_dm_boot_time_crc_init(struct amdgpu_device *adev) 1115 { 1116 struct dm_boot_time_crc_info *bootcrc_info = NULL; 1117 struct dmub_srv *dmub = NULL; 1118 union dmub_fw_boot_options option = {0}; 1119 int ret = 0; 1120 const uint32_t fb_size = 3 * 1024 * 1024; /* 3MB for DCC pattern */ 1121 1122 if (!adev || !adev->dm.dc || !adev->dm.dc->ctx || 1123 !adev->dm.dc->ctx->dmub_srv) { 1124 return; 1125 } 1126 1127 dmub = adev->dm.dc->ctx->dmub_srv->dmub; 1128 bootcrc_info = &adev->dm.boot_time_crc_info; 1129 1130 if (!dmub || !dmub->hw_funcs.get_fw_boot_option) { 1131 drm_dbg(adev_to_drm(adev), "failed to init boot time crc buffer\n"); 1132 return; 1133 } 1134 1135 option = dmub->hw_funcs.get_fw_boot_option(dmub); 1136 1137 /* Return if boot time CRC is not enabled */ 1138 if (option.bits.bootcrc_en_at_S0i3 == 0) 1139 return; 1140 1141 /* Create a buffer for boot time CRC */ 1142 ret = amdgpu_bo_create_kernel(adev, fb_size, PAGE_SIZE, 1143 AMDGPU_GEM_DOMAIN_VRAM | AMDGPU_GEM_DOMAIN_GTT, 1144 &bootcrc_info->bo_ptr, 1145 &bootcrc_info->gpu_addr, 1146 &bootcrc_info->cpu_addr); 1147 1148 if (ret) { 1149 drm_dbg(adev_to_drm(adev), "failed to create boot time crc buffer\n"); 1150 } else { 1151 bootcrc_info->size = fb_size; 1152 1153 drm_dbg(adev_to_drm(adev), "boot time crc buffer created addr 0x%llx, size %u\n", 1154 bootcrc_info->gpu_addr, bootcrc_info->size); 1155 1156 /* Send the buffer info to DMUB */ 1157 dc_dmub_srv_boot_time_crc_init(adev->dm.dc, 1158 bootcrc_info->gpu_addr, bootcrc_info->size); 1159 } 1160 } 1161 1162 static int dm_late_init(struct amdgpu_ip_block *ip_block) 1163 { 1164 struct amdgpu_device *adev = ip_block->adev; 1165 1166 struct dmcu_iram_parameters params; 1167 unsigned int linear_lut[16]; 1168 int i; 1169 struct dmcu *dmcu = NULL; 1170 1171 dmcu = adev->dm.dc->res_pool->dmcu; 1172 1173 /* Init the boot time CRC (skip in resume) */ 1174 if ((adev->in_suspend == 0) && 1175 (amdgpu_ip_version(adev, DCE_HWIP, 0) == IP_VERSION(3, 6, 0))) 1176 amdgpu_dm_boot_time_crc_init(adev); 1177 1178 for (i = 0; i < 16; i++) 1179 linear_lut[i] = 0xFFFF * i / 15; 1180 1181 params.set = 0; 1182 params.backlight_ramping_override = false; 1183 params.backlight_ramping_start = 0xCCCC; 1184 params.backlight_ramping_reduction = 0xCCCCCCCC; 1185 params.backlight_lut_array_size = 16; 1186 params.backlight_lut_array = linear_lut; 1187 1188 /* Min backlight level after ABM reduction, Don't allow below 1% 1189 * 0xFFFF x 0.01 = 0x28F 1190 */ 1191 params.min_abm_backlight = 0x28F; 1192 /* In the case where abm is implemented on dmcub, 1193 * dmcu object will be null. 1194 * ABM 2.4 and up are implemented on dmcub. 1195 */ 1196 if (dmcu) { 1197 if (!dmcu_load_iram(dmcu, params)) 1198 return -EINVAL; 1199 } else if (adev->dm.dc->ctx->dmub_srv) { 1200 struct dc_link *edp_links[MAX_NUM_EDP]; 1201 int edp_num; 1202 1203 dc_get_edp_links(adev->dm.dc, edp_links, &edp_num); 1204 for (i = 0; i < edp_num; i++) { 1205 if (!dmub_init_abm_config(adev->dm.dc->res_pool, params, i)) 1206 return -EINVAL; 1207 } 1208 } 1209 1210 return amdgpu_dm_detect_mst_link_for_all_connectors(adev_to_drm(adev)); 1211 } 1212 1213 static void resume_mst_branch_status(struct drm_dp_mst_topology_mgr *mgr) 1214 { 1215 u8 buf[UUID_SIZE]; 1216 guid_t guid; 1217 int ret; 1218 1219 mutex_lock(&mgr->lock); 1220 if (!mgr->mst_primary) 1221 goto out_fail; 1222 1223 if (drm_dp_read_dpcd_caps(mgr->aux, mgr->dpcd) < 0) { 1224 drm_dbg_kms(mgr->dev, "dpcd read failed - undocked during suspend?\n"); 1225 goto out_fail; 1226 } 1227 1228 ret = drm_dp_dpcd_writeb(mgr->aux, DP_MSTM_CTRL, 1229 DP_MST_EN | 1230 DP_UP_REQ_EN | 1231 DP_UPSTREAM_IS_SRC); 1232 if (ret < 0) { 1233 drm_dbg_kms(mgr->dev, "mst write failed - undocked during suspend?\n"); 1234 goto out_fail; 1235 } 1236 1237 /* Some hubs forget their guids after they resume */ 1238 ret = drm_dp_dpcd_read(mgr->aux, DP_GUID, buf, sizeof(buf)); 1239 if (ret != sizeof(buf)) { 1240 drm_dbg_kms(mgr->dev, "dpcd read failed - undocked during suspend?\n"); 1241 goto out_fail; 1242 } 1243 1244 import_guid(&guid, buf); 1245 1246 if (guid_is_null(&guid)) { 1247 guid_gen(&guid); 1248 export_guid(buf, &guid); 1249 1250 ret = drm_dp_dpcd_write(mgr->aux, DP_GUID, buf, sizeof(buf)); 1251 1252 if (ret != sizeof(buf)) { 1253 drm_dbg_kms(mgr->dev, "check mstb guid failed - undocked during suspend?\n"); 1254 goto out_fail; 1255 } 1256 } 1257 1258 guid_copy(&mgr->mst_primary->guid, &guid); 1259 1260 out_fail: 1261 mutex_unlock(&mgr->lock); 1262 } 1263 1264 static void s3_handle_mst(struct drm_device *dev, bool suspend) 1265 { 1266 struct amdgpu_dm_connector *aconnector; 1267 struct drm_connector *connector; 1268 struct drm_connector_list_iter iter; 1269 struct drm_dp_mst_topology_mgr *mgr; 1270 1271 drm_connector_list_iter_begin(dev, &iter); 1272 drm_for_each_connector_iter(connector, &iter) { 1273 1274 if (connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK) 1275 continue; 1276 1277 aconnector = to_amdgpu_dm_connector(connector); 1278 if (aconnector->dc_link->type != dc_connection_mst_branch || 1279 aconnector->mst_root) 1280 continue; 1281 1282 mgr = &aconnector->mst_mgr; 1283 1284 if (suspend) { 1285 drm_dp_mst_topology_mgr_suspend(mgr); 1286 } else { 1287 /* if extended timeout is supported in hardware, 1288 * default to LTTPR timeout (3.2ms) first as a W/A for DP link layer 1289 * CTS 4.2.1.1 regression introduced by CTS specs requirement update. 1290 */ 1291 try_to_configure_aux_timeout(aconnector->dc_link->ddc, LINK_AUX_DEFAULT_LTTPR_TIMEOUT_PERIOD); 1292 if (!dp_is_lttpr_present(aconnector->dc_link)) 1293 try_to_configure_aux_timeout(aconnector->dc_link->ddc, LINK_AUX_DEFAULT_TIMEOUT_PERIOD); 1294 1295 /* TODO: move resume_mst_branch_status() into drm mst resume again 1296 * once topology probing work is pulled out from mst resume into mst 1297 * resume 2nd step. mst resume 2nd step should be called after old 1298 * state getting restored (i.e. drm_atomic_helper_resume()). 1299 */ 1300 resume_mst_branch_status(mgr); 1301 } 1302 } 1303 drm_connector_list_iter_end(&iter); 1304 } 1305 1306 static int dm_oem_i2c_hw_init(struct amdgpu_device *adev) 1307 { 1308 struct amdgpu_display_manager *dm = &adev->dm; 1309 struct amdgpu_i2c_adapter *oem_i2c; 1310 struct ddc_service *oem_ddc_service; 1311 int r; 1312 1313 oem_ddc_service = dc_get_oem_i2c_device(adev->dm.dc); 1314 if (oem_ddc_service) { 1315 oem_i2c = amdgpu_dm_create_i2c(oem_ddc_service, true); 1316 if (!oem_i2c) { 1317 drm_info(adev_to_drm(adev), "Failed to create oem i2c adapter data\n"); 1318 return -ENOMEM; 1319 } 1320 1321 r = devm_i2c_add_adapter(adev->dev, &oem_i2c->base); 1322 if (r) { 1323 drm_info(adev_to_drm(adev), "Failed to register oem i2c\n"); 1324 kfree(oem_i2c); 1325 return r; 1326 } 1327 dm->oem_i2c = oem_i2c; 1328 } 1329 1330 return 0; 1331 } 1332 1333 /** 1334 * dm_hw_init() - Initialize DC device 1335 * @ip_block: Pointer to the amdgpu_ip_block for this hw instance. 1336 * 1337 * Initialize the &struct amdgpu_display_manager device. This involves calling 1338 * the initializers of each DM component, then populating the struct with them. 1339 * 1340 * Although the function implies hardware initialization, both hardware and 1341 * software are initialized here. Splitting them out to their relevant init 1342 * hooks is a future TODO item. 1343 * 1344 * Some notable things that are initialized here: 1345 * 1346 * - Display Core, both software and hardware 1347 * - DC modules that we need (freesync and color management) 1348 * - DRM software states 1349 * - Interrupt sources and handlers 1350 * - Vblank support 1351 * - Debug FS entries, if enabled 1352 */ 1353 static int dm_hw_init(struct amdgpu_ip_block *ip_block) 1354 { 1355 struct amdgpu_device *adev = ip_block->adev; 1356 int r; 1357 1358 adev->dm.i2c_devres_group = devres_open_group(adev->dev, NULL, GFP_KERNEL); 1359 if (!adev->dm.i2c_devres_group) 1360 return -ENOMEM; 1361 1362 /* Create DAL display manager */ 1363 r = amdgpu_dm_init(adev); 1364 if (r) 1365 goto err_release_i2c; 1366 amdgpu_dm_hpd_init(adev); 1367 1368 r = dm_oem_i2c_hw_init(adev); 1369 if (r) 1370 drm_info(adev_to_drm(adev), "Failed to add OEM i2c bus\n"); 1371 1372 devres_close_group(adev->dev, adev->dm.i2c_devres_group); 1373 return 0; 1374 1375 err_release_i2c: 1376 devres_release_group(adev->dev, adev->dm.i2c_devres_group); 1377 return r; 1378 } 1379 1380 /** 1381 * dm_hw_fini() - Teardown DC device 1382 * @ip_block: Pointer to the amdgpu_ip_block for this hw instance. 1383 * 1384 * Teardown components within &struct amdgpu_display_manager that require 1385 * cleanup. This involves cleaning up the DRM device, DC, and any modules that 1386 * were loaded. Also flush IRQ workqueues and disable them. 1387 */ 1388 static int dm_hw_fini(struct amdgpu_ip_block *ip_block) 1389 { 1390 struct amdgpu_device *adev = ip_block->adev; 1391 1392 if (adev->dm.i2c_devres_group) 1393 devres_release_group(adev->dev, adev->dm.i2c_devres_group); 1394 1395 amdgpu_dm_hpd_fini(adev); 1396 1397 amdgpu_dm_fini(adev); 1398 return 0; 1399 } 1400 1401 1402 static void dm_gpureset_toggle_interrupts(struct amdgpu_device *adev, 1403 struct dc_state *state, bool enable) 1404 { 1405 enum dc_irq_source irq_source; 1406 struct amdgpu_crtc *acrtc; 1407 int rc = -EBUSY; 1408 int i = 0; 1409 1410 for (i = 0; i < state->stream_count; i++) { 1411 acrtc = amdgpu_dm_get_crtc_by_otg_inst( 1412 adev, state->stream_status[i].primary_otg_inst); 1413 1414 if (acrtc && state->stream_status[i].plane_count != 0 && 1415 amdgpu_ip_version(adev, DCE_HWIP, 0) == 0) { 1416 irq_source = IRQ_TYPE_PFLIP + acrtc->otg_inst; 1417 rc = dc_interrupt_set(adev->dm.dc, irq_source, enable) ? 0 : -EBUSY; 1418 if (rc) 1419 drm_warn(adev_to_drm(adev), "Failed to %s pflip interrupts\n", 1420 enable ? "enable" : "disable"); 1421 1422 if (dc_supports_vrr(adev->dm.dc->ctx->dce_version)) { 1423 if (enable) { 1424 if (amdgpu_dm_crtc_vrr_active( 1425 to_dm_crtc_state(acrtc->base.state))) 1426 rc = amdgpu_dm_crtc_set_vupdate_irq( 1427 &acrtc->base, true); 1428 } else 1429 rc = amdgpu_dm_crtc_set_vupdate_irq( 1430 &acrtc->base, false); 1431 1432 if (rc) 1433 drm_warn(adev_to_drm(adev), "Failed to %sable vupdate interrupt\n", 1434 enable ? "en" : "dis"); 1435 } 1436 1437 irq_source = IRQ_TYPE_VBLANK + acrtc->otg_inst; 1438 /* During gpu-reset we disable and then enable vblank irq, so 1439 * don't use amdgpu_irq_get/put() to avoid refcount change. 1440 */ 1441 if (!dc_interrupt_set(adev->dm.dc, irq_source, enable)) 1442 drm_warn(adev_to_drm(adev), "Failed to %sable vblank interrupt\n", enable ? "en" : "dis"); 1443 1444 } else if (acrtc && state->stream_status[i].plane_count != 0) { 1445 /* DCN only needs to toggle VUPDATE_NO_LOCK */ 1446 rc = amdgpu_dm_crtc_set_vupdate_irq(&acrtc->base, enable); 1447 if (rc) 1448 drm_warn(adev_to_drm(adev), "Failed to %sable vupdate interrupt\n", 1449 enable ? "en" : "dis"); 1450 } 1451 } 1452 1453 } 1454 1455 DEFINE_FREE(state_release, struct dc_state *, if (_T) dc_state_release(_T)) 1456 1457 static enum dc_status amdgpu_dm_commit_zero_streams(struct dc *dc) 1458 { 1459 struct dc_state *context __free(state_release) = NULL; 1460 int i; 1461 struct dc_stream_state *del_streams[MAX_PIPES]; 1462 int del_streams_count = 0; 1463 struct dc_commit_streams_params params = {}; 1464 1465 memset(del_streams, 0, sizeof(del_streams)); 1466 1467 context = dc_state_create_current_copy(dc); 1468 if (context == NULL) 1469 return DC_ERROR_UNEXPECTED; 1470 1471 /* First remove from context all streams */ 1472 for (i = 0; i < context->stream_count; i++) { 1473 struct dc_stream_state *stream = context->streams[i]; 1474 1475 del_streams[del_streams_count++] = stream; 1476 } 1477 1478 /* Remove all planes for removed streams and then remove the streams */ 1479 for (i = 0; i < del_streams_count; i++) { 1480 enum dc_status res; 1481 1482 if (!dc_state_rem_all_planes_for_stream(dc, del_streams[i], context)) 1483 return DC_FAIL_DETACH_SURFACES; 1484 1485 res = dc_state_remove_stream(dc, context, del_streams[i]); 1486 if (res != DC_OK) 1487 return res; 1488 } 1489 1490 params.streams = context->streams; 1491 params.stream_count = context->stream_count; 1492 1493 return dc_commit_streams(dc, ¶ms); 1494 } 1495 1496 static int dm_cache_state(struct amdgpu_device *adev) 1497 { 1498 int r; 1499 1500 adev->dm.cached_state = drm_atomic_helper_suspend(adev_to_drm(adev)); 1501 if (IS_ERR(adev->dm.cached_state)) { 1502 r = PTR_ERR(adev->dm.cached_state); 1503 adev->dm.cached_state = NULL; 1504 } 1505 1506 return adev->dm.cached_state ? 0 : r; 1507 } 1508 1509 static void dm_destroy_cached_state(struct amdgpu_device *adev) 1510 { 1511 struct amdgpu_display_manager *dm = &adev->dm; 1512 struct drm_device *ddev = adev_to_drm(adev); 1513 struct dm_plane_state *dm_new_plane_state; 1514 struct drm_plane_state *new_plane_state; 1515 struct dm_crtc_state *dm_new_crtc_state; 1516 struct drm_crtc_state *new_crtc_state; 1517 struct drm_plane *plane; 1518 struct drm_crtc *crtc; 1519 int i; 1520 1521 if (!dm->cached_state) 1522 return; 1523 1524 /* Force mode set in atomic commit */ 1525 for_each_new_crtc_in_state(dm->cached_state, crtc, new_crtc_state, i) { 1526 new_crtc_state->active_changed = true; 1527 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); 1528 amdgpu_dm_reset_freesync_config_for_crtc(dm_new_crtc_state); 1529 } 1530 1531 /* 1532 * atomic_check is expected to create the dc states. We need to release 1533 * them here, since they were duplicated as part of the suspend 1534 * procedure. 1535 */ 1536 for_each_new_crtc_in_state(dm->cached_state, crtc, new_crtc_state, i) { 1537 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); 1538 if (dm_new_crtc_state->stream) { 1539 WARN_ON(kref_read(&dm_new_crtc_state->stream->refcount) > 1); 1540 dc_stream_release(dm_new_crtc_state->stream); 1541 dm_new_crtc_state->stream = NULL; 1542 } 1543 dm_new_crtc_state->base.color_mgmt_changed = true; 1544 } 1545 1546 for_each_new_plane_in_state(dm->cached_state, plane, new_plane_state, i) { 1547 dm_new_plane_state = to_dm_plane_state(new_plane_state); 1548 if (dm_new_plane_state->dc_state) { 1549 WARN_ON(kref_read(&dm_new_plane_state->dc_state->refcount) > 1); 1550 dc_plane_state_release(dm_new_plane_state->dc_state); 1551 dm_new_plane_state->dc_state = NULL; 1552 } 1553 } 1554 1555 drm_atomic_helper_resume(ddev, dm->cached_state); 1556 1557 dm->cached_state = NULL; 1558 } 1559 1560 static int dm_suspend(struct amdgpu_ip_block *ip_block) 1561 { 1562 struct amdgpu_device *adev = ip_block->adev; 1563 struct amdgpu_display_manager *dm = &adev->dm; 1564 1565 if (amdgpu_in_reset(adev)) { 1566 enum dc_status res; 1567 1568 /* Quiesce ISM workers before taking dc_lock (workers take 1569 * dc_lock themselves; syncing under it would deadlock). 1570 */ 1571 amdgpu_dm_ism_disable(dm); 1572 1573 mutex_lock(&dm->dc_lock); 1574 1575 amdgpu_dm_ism_force_full_power(dm); 1576 dc_allow_idle_optimizations(adev->dm.dc, false); 1577 1578 dm->cached_dc_state = dc_state_create_copy(dm->dc->current_state); 1579 1580 if (dm->cached_dc_state) 1581 dm_gpureset_toggle_interrupts(adev, dm->cached_dc_state, false); 1582 1583 res = amdgpu_dm_commit_zero_streams(dm->dc); 1584 if (res != DC_OK) { 1585 drm_err(adev_to_drm(adev), "Failed to commit zero streams: %d\n", res); 1586 return -EINVAL; 1587 } 1588 1589 amdgpu_dm_irq_suspend(adev); 1590 1591 amdgpu_dm_hpd_rx_irq_work_suspend(dm); 1592 1593 return 0; 1594 } 1595 1596 if (!adev->dm.cached_state) { 1597 int r = dm_cache_state(adev); 1598 1599 if (r) 1600 return r; 1601 } 1602 1603 amdgpu_dm_s3_handle_hdmi_cec(adev_to_drm(adev), true); 1604 1605 s3_handle_mst(adev_to_drm(adev), true); 1606 1607 amdgpu_dm_irq_suspend(adev); 1608 1609 /* 1610 * Quiesce ISM workers before taking dc_lock (workers take dc_lock 1611 * themselves; syncing under it would deadlock). 1612 */ 1613 amdgpu_dm_ism_disable(dm); 1614 scoped_guard(mutex, &dm->dc_lock) 1615 amdgpu_dm_ism_force_full_power(dm); 1616 1617 amdgpu_dm_hpd_rx_irq_work_suspend(dm); 1618 1619 dc_set_power_state(dm->dc, DC_ACPI_CM_POWER_STATE_D3); 1620 1621 if (dm->dc->caps.ips_support && adev->in_s0ix) 1622 dc_allow_idle_optimizations(dm->dc, true); 1623 1624 dc_dmub_srv_set_power_state(dm->dc->ctx->dmub_srv, DC_ACPI_CM_POWER_STATE_D3); 1625 1626 return 0; 1627 } 1628 1629 void amdgpu_dm_emulated_link_detect(struct dc_link *link) 1630 { 1631 struct dc_sink_init_data sink_init_data = { 0 }; 1632 struct display_sink_capability sink_caps = { 0 }; 1633 enum dc_edid_status edid_status; 1634 struct dc_context *dc_ctx = link->ctx; 1635 struct drm_device *dev = adev_to_drm(dc_ctx->driver_context); 1636 struct dc_sink *sink = NULL; 1637 struct dc_sink *prev_sink = NULL; 1638 1639 link->type = dc_connection_none; 1640 prev_sink = link->local_sink; 1641 1642 if (prev_sink) 1643 dc_sink_release(prev_sink); 1644 1645 switch (link->connector_signal) { 1646 case SIGNAL_TYPE_HDMI_TYPE_A: { 1647 sink_caps.transaction_type = DDC_TRANSACTION_TYPE_I2C; 1648 sink_caps.signal = SIGNAL_TYPE_HDMI_TYPE_A; 1649 break; 1650 } 1651 1652 case SIGNAL_TYPE_DVI_SINGLE_LINK: { 1653 sink_caps.transaction_type = DDC_TRANSACTION_TYPE_I2C; 1654 sink_caps.signal = SIGNAL_TYPE_DVI_SINGLE_LINK; 1655 break; 1656 } 1657 1658 case SIGNAL_TYPE_DVI_DUAL_LINK: { 1659 sink_caps.transaction_type = DDC_TRANSACTION_TYPE_I2C; 1660 sink_caps.signal = SIGNAL_TYPE_DVI_DUAL_LINK; 1661 break; 1662 } 1663 1664 case SIGNAL_TYPE_LVDS: { 1665 sink_caps.transaction_type = DDC_TRANSACTION_TYPE_I2C; 1666 sink_caps.signal = SIGNAL_TYPE_LVDS; 1667 break; 1668 } 1669 1670 case SIGNAL_TYPE_EDP: { 1671 sink_caps.transaction_type = 1672 DDC_TRANSACTION_TYPE_I2C_OVER_AUX; 1673 sink_caps.signal = SIGNAL_TYPE_EDP; 1674 break; 1675 } 1676 1677 case SIGNAL_TYPE_DISPLAY_PORT: { 1678 sink_caps.transaction_type = 1679 DDC_TRANSACTION_TYPE_I2C_OVER_AUX; 1680 sink_caps.signal = SIGNAL_TYPE_VIRTUAL; 1681 break; 1682 } 1683 1684 default: 1685 drm_err(dev, "Invalid connector type! signal:%d\n", 1686 link->connector_signal); 1687 return; 1688 } 1689 1690 sink_init_data.link = link; 1691 sink_init_data.sink_signal = sink_caps.signal; 1692 1693 sink = dc_sink_create(&sink_init_data); 1694 if (!sink) { 1695 drm_err(dev, "Failed to create sink!\n"); 1696 return; 1697 } 1698 1699 /* dc_sink_create returns a new reference */ 1700 link->local_sink = sink; 1701 1702 edid_status = dm_helpers_read_local_edid( 1703 link->ctx, 1704 link, 1705 sink); 1706 1707 if (edid_status != EDID_OK) 1708 drm_err(dev, "Failed to read EDID\n"); 1709 1710 } 1711 1712 static void dm_gpureset_commit_state(struct dc_state *dc_state, 1713 struct amdgpu_display_manager *dm) 1714 { 1715 struct { 1716 struct dc_surface_update surface_updates[MAX_SURFACES]; 1717 struct dc_plane_info plane_infos[MAX_SURFACES]; 1718 struct dc_scaling_info scaling_infos[MAX_SURFACES]; 1719 struct dc_flip_addrs flip_addrs[MAX_SURFACES]; 1720 struct dc_stream_update stream_update; 1721 } *bundle __free(kfree); 1722 int k, m; 1723 1724 bundle = kzalloc_obj(*bundle); 1725 1726 if (!bundle) { 1727 drm_err(dm->ddev, "Failed to allocate update bundle\n"); 1728 return; 1729 } 1730 1731 for (k = 0; k < dc_state->stream_count; k++) { 1732 bundle->stream_update.stream = dc_state->streams[k]; 1733 1734 for (m = 0; m < dc_state->stream_status[k].plane_count; m++) { 1735 bundle->surface_updates[m].surface = 1736 dc_state->stream_status[k].plane_states[m]; 1737 bundle->surface_updates[m].surface->force_full_update = 1738 true; 1739 } 1740 1741 update_planes_and_stream_adapter(dm->dc, 1742 UPDATE_TYPE_FULL, 1743 dc_state->stream_status[k].plane_count, 1744 dc_state->streams[k], 1745 &bundle->stream_update, 1746 bundle->surface_updates); 1747 } 1748 } 1749 1750 void amdgpu_dm_apply_delay_after_dpcd_poweroff(struct amdgpu_device *adev, 1751 struct dc_sink *sink) 1752 { 1753 struct dc_panel_patch *ppatch = NULL; 1754 1755 if (!sink) 1756 return; 1757 1758 ppatch = &sink->edid_caps.panel_patch; 1759 if (ppatch->wait_after_dpcd_poweroff_ms) { 1760 msleep(ppatch->wait_after_dpcd_poweroff_ms); 1761 drm_dbg_driver(adev_to_drm(adev), 1762 "%s: adding a %ds delay as w/a for panel\n", 1763 __func__, 1764 ppatch->wait_after_dpcd_poweroff_ms / 1000); 1765 } 1766 } 1767 EXPORT_IF_KUNIT(amdgpu_dm_apply_delay_after_dpcd_poweroff); 1768 1769 /** 1770 * amdgpu_dm_dump_links_and_sinks - Debug dump of all DC links and their sinks 1771 * @adev: amdgpu device pointer 1772 * 1773 * Iterates through all DC links and dumps information about local and remote 1774 * (MST) sinks. Should be called after connector detection is complete to see 1775 * the final state of all links. 1776 */ 1777 static void amdgpu_dm_dump_links_and_sinks(struct amdgpu_device *adev) 1778 { 1779 struct dc *dc = adev->dm.dc; 1780 struct drm_device *dev = adev_to_drm(adev); 1781 int li; 1782 1783 if (!dc) 1784 return; 1785 1786 for (li = 0; li < dc->link_count; li++) { 1787 struct dc_link *l = dc->links[li]; 1788 const char *name = NULL; 1789 int rs; 1790 1791 if (!l) 1792 continue; 1793 if (l->local_sink && l->local_sink->edid_caps.display_name[0]) 1794 name = l->local_sink->edid_caps.display_name; 1795 else 1796 name = "n/a"; 1797 1798 drm_dbg_kms(dev, 1799 "LINK_DUMP[%d]: local_sink=%p type=%d sink_signal=%d sink_count=%u edid_name=%s mst_capable=%d mst_alloc_streams=%d\n", 1800 li, 1801 l->local_sink, 1802 l->type, 1803 l->local_sink ? l->local_sink->sink_signal : SIGNAL_TYPE_NONE, 1804 l->sink_count, 1805 name, 1806 l->dpcd_caps.is_mst_capable, 1807 l->mst_stream_alloc_table.stream_count); 1808 1809 /* Dump remote (MST) sinks if any */ 1810 for (rs = 0; rs < l->sink_count; rs++) { 1811 struct dc_sink *rsink = l->remote_sinks[rs]; 1812 const char *rname = NULL; 1813 1814 if (!rsink) 1815 continue; 1816 if (rsink->edid_caps.display_name[0]) 1817 rname = rsink->edid_caps.display_name; 1818 else 1819 rname = "n/a"; 1820 drm_dbg_kms(dev, 1821 " REMOTE_SINK[%d:%d]: sink=%p signal=%d edid_name=%s\n", 1822 li, rs, 1823 rsink, 1824 rsink->sink_signal, 1825 rname); 1826 } 1827 } 1828 } 1829 1830 static int dm_resume(struct amdgpu_ip_block *ip_block) 1831 { 1832 struct amdgpu_device *adev = ip_block->adev; 1833 struct drm_device *ddev = adev_to_drm(adev); 1834 struct amdgpu_display_manager *dm = &adev->dm; 1835 struct amdgpu_dm_connector *aconnector; 1836 struct drm_connector *connector; 1837 struct drm_connector_list_iter iter; 1838 struct dm_atomic_state *dm_state = to_dm_atomic_state(dm->atomic_obj.state); 1839 enum dc_connection_type new_connection_type = dc_connection_none; 1840 struct dc_state *dc_state; 1841 int i, r, j; 1842 struct dc_commit_streams_params commit_params = {}; 1843 1844 if (dm->dc->caps.ips_support) { 1845 if (!amdgpu_in_reset(adev)) 1846 mutex_lock(&dm->dc_lock); 1847 1848 /* Need to set POWER_STATE_D0 first or it will not execute 1849 * idle_power_optimizations command to DMUB. 1850 */ 1851 dc_dmub_srv_set_power_state(dm->dc->ctx->dmub_srv, DC_ACPI_CM_POWER_STATE_D0); 1852 dc_dmub_srv_apply_idle_power_optimizations(dm->dc, false); 1853 1854 if (!amdgpu_in_reset(adev)) 1855 mutex_unlock(&dm->dc_lock); 1856 } 1857 1858 if (amdgpu_in_reset(adev)) { 1859 dc_state = dm->cached_dc_state; 1860 1861 /* 1862 * The dc->current_state is backed up into dm->cached_dc_state 1863 * before we commit 0 streams. 1864 * 1865 * DC will clear link encoder assignments on the real state 1866 * but the changes won't propagate over to the copy we made 1867 * before the 0 streams commit. 1868 * 1869 * DC expects that link encoder assignments are *not* valid 1870 * when committing a state, so as a workaround we can copy 1871 * off of the current state. 1872 * 1873 * We lose the previous assignments, but we had already 1874 * commit 0 streams anyway. 1875 */ 1876 link_enc_cfg_copy(adev->dm.dc->current_state, dc_state); 1877 1878 r = dm_dmub_hw_init(adev); 1879 if (r) { 1880 drm_err(adev_to_drm(adev), "DMUB interface failed to initialize: status=%d\n", r); 1881 return r; 1882 } 1883 1884 dc_dmub_srv_set_power_state(dm->dc->ctx->dmub_srv, DC_ACPI_CM_POWER_STATE_D0); 1885 dc_set_power_state(dm->dc, DC_ACPI_CM_POWER_STATE_D0); 1886 1887 dc_resume(dm->dc); 1888 1889 amdgpu_dm_ism_enable(dm); 1890 amdgpu_dm_irq_resume_early(adev); 1891 1892 for (i = 0; i < dc_state->stream_count; i++) { 1893 dc_state->streams[i]->mode_changed = true; 1894 for (j = 0; j < dc_state->stream_status[i].plane_count; j++) { 1895 dc_pipe_update_bits_set_full(&dc_state->stream_status[i].plane_states[j]->update_bits); 1896 } 1897 } 1898 1899 if (dc_is_dmub_outbox_supported(adev->dm.dc)) { 1900 amdgpu_dm_outbox_init(adev); 1901 dc_enable_dmub_outbox(adev->dm.dc); 1902 } 1903 1904 commit_params.streams = dc_state->streams; 1905 commit_params.stream_count = dc_state->stream_count; 1906 dc_exit_ips_for_hw_access(dm->dc); 1907 WARN_ON(!dc_commit_streams(dm->dc, &commit_params)); 1908 1909 dm_gpureset_commit_state(dm->cached_dc_state, dm); 1910 1911 dm_gpureset_toggle_interrupts(adev, dm->cached_dc_state, true); 1912 1913 dc_state_release(dm->cached_dc_state); 1914 dm->cached_dc_state = NULL; 1915 1916 amdgpu_dm_irq_resume_late(adev); 1917 1918 mutex_unlock(&dm->dc_lock); 1919 1920 /* set the backlight after a reset */ 1921 for (i = 0; i < dm->num_of_edps; i++) { 1922 if (dm->backlight_dev[i]) 1923 amdgpu_dm_backlight_set_level(dm, i, dm->brightness[i]); 1924 } 1925 1926 return 0; 1927 } 1928 /* Recreate dc_state - DC invalidates it when setting power state to S3. */ 1929 dc_state_release(dm_state->context); 1930 dm_state->context = dc_state_create(dm->dc, NULL); 1931 /* TODO: Remove dc_state->dccg, use dc->dccg directly. */ 1932 1933 /* Before powering on DC we need to re-initialize DMUB. */ 1934 dm_dmub_hw_resume(adev); 1935 1936 /* Re-enable outbox interrupts for DPIA. */ 1937 if (dc_is_dmub_outbox_supported(adev->dm.dc)) { 1938 amdgpu_dm_outbox_init(adev); 1939 dc_enable_dmub_outbox(adev->dm.dc); 1940 } 1941 1942 /* power on hardware */ 1943 dc_dmub_srv_set_power_state(dm->dc->ctx->dmub_srv, DC_ACPI_CM_POWER_STATE_D0); 1944 dc_set_power_state(dm->dc, DC_ACPI_CM_POWER_STATE_D0); 1945 1946 /* program HPD filter */ 1947 dc_resume(dm->dc); 1948 1949 scoped_guard(mutex, &dm->dc_lock) 1950 amdgpu_dm_ism_enable(dm); 1951 1952 /* 1953 * early enable HPD Rx IRQ, should be done before set mode as short 1954 * pulse interrupts are used for MST 1955 */ 1956 amdgpu_dm_irq_resume_early(adev); 1957 1958 amdgpu_dm_s3_handle_hdmi_cec(ddev, false); 1959 1960 /* On resume we need to rewrite the MSTM control bits to enable MST*/ 1961 s3_handle_mst(ddev, false); 1962 1963 /* Do detection*/ 1964 drm_connector_list_iter_begin(ddev, &iter); 1965 drm_for_each_connector_iter(connector, &iter) { 1966 bool ret; 1967 1968 if (connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK) 1969 continue; 1970 1971 aconnector = to_amdgpu_dm_connector(connector); 1972 1973 if (!aconnector->dc_link) 1974 continue; 1975 1976 /* 1977 * this is the case when traversing through already created end sink 1978 * MST connectors, should be skipped 1979 */ 1980 if (aconnector->mst_root) 1981 continue; 1982 1983 /* Skip eDP detection, when there is no sink present */ 1984 if (aconnector->dc_link->connector_signal == SIGNAL_TYPE_EDP && 1985 !aconnector->dc_link->edp_sink_present) 1986 continue; 1987 1988 guard(mutex)(&aconnector->hpd_lock); 1989 if (!dc_link_detect_connection_type(aconnector->dc_link, &new_connection_type)) 1990 drm_err(adev_to_drm(adev), "KMS: Failed to detect connector\n"); 1991 1992 if (aconnector->base.force && new_connection_type == dc_connection_none) { 1993 amdgpu_dm_emulated_link_detect(aconnector->dc_link); 1994 } else { 1995 guard(mutex)(&dm->dc_lock); 1996 dc_exit_ips_for_hw_access(dm->dc); 1997 ret = dc_link_detect(aconnector->dc_link, DETECT_REASON_RESUMEFROMS3S4); 1998 if (ret) { 1999 /* w/a delay for certain panels */ 2000 amdgpu_dm_apply_delay_after_dpcd_poweroff(adev, aconnector->dc_sink); 2001 } 2002 } 2003 2004 if (aconnector->fake_enable && aconnector->dc_link->local_sink) 2005 aconnector->fake_enable = false; 2006 2007 if (aconnector->dc_sink) 2008 dc_sink_release(aconnector->dc_sink); 2009 aconnector->dc_sink = NULL; 2010 amdgpu_dm_update_connector_after_detect(aconnector); 2011 } 2012 drm_connector_list_iter_end(&iter); 2013 2014 dm_destroy_cached_state(adev); 2015 2016 /* Do mst topology probing after resuming cached state*/ 2017 drm_connector_list_iter_begin(ddev, &iter); 2018 drm_for_each_connector_iter(connector, &iter) { 2019 bool init = false; 2020 2021 if (connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK) 2022 continue; 2023 2024 aconnector = to_amdgpu_dm_connector(connector); 2025 if (aconnector->dc_link->type != dc_connection_mst_branch || 2026 aconnector->mst_root) 2027 continue; 2028 2029 scoped_guard(mutex, &aconnector->mst_mgr.lock) { 2030 init = !aconnector->mst_mgr.mst_primary; 2031 } 2032 if (init) 2033 dm_helpers_dp_mst_start_top_mgr(aconnector->dc_link->ctx, 2034 aconnector->dc_link, false); 2035 else 2036 drm_dp_mst_topology_queue_probe(&aconnector->mst_mgr); 2037 } 2038 drm_connector_list_iter_end(&iter); 2039 2040 /* Debug dump: list all DC links and their associated sinks after detection 2041 * is complete for all connectors. This provides a comprehensive view of the 2042 * final state without repeating the dump for each connector. 2043 */ 2044 amdgpu_dm_dump_links_and_sinks(adev); 2045 2046 amdgpu_dm_irq_resume_late(adev); 2047 2048 amdgpu_dm_smu_write_watermarks_table(adev); 2049 2050 drm_kms_helper_hotplug_event(ddev); 2051 2052 return 0; 2053 } 2054 2055 /** 2056 * DOC: DM Lifecycle 2057 * 2058 * DM (and consequently DC) is registered in the amdgpu base driver as a IP 2059 * block. When CONFIG_DRM_AMD_DC is enabled, the DM device IP block is added to 2060 * the base driver's device list to be initialized and torn down accordingly. 2061 * 2062 * The functions to do so are provided as hooks in &struct amd_ip_funcs. 2063 */ 2064 2065 static const struct amd_ip_funcs amdgpu_dm_funcs = { 2066 .name = "dm", 2067 .early_init = dm_early_init, 2068 .late_init = dm_late_init, 2069 .sw_init = dm_sw_init, 2070 .sw_fini = dm_sw_fini, 2071 .early_fini = amdgpu_dm_early_fini, 2072 .hw_init = dm_hw_init, 2073 .hw_fini = dm_hw_fini, 2074 .suspend = dm_suspend, 2075 .resume = dm_resume, 2076 .is_idle = dm_is_idle, 2077 .wait_for_idle = dm_wait_for_idle, 2078 .soft_reset = dm_soft_reset, 2079 .set_clockgating_state = dm_set_clockgating_state, 2080 .set_powergating_state = dm_set_powergating_state, 2081 }; 2082 2083 const struct amdgpu_ip_block_version dm_ip_block = { 2084 .type = AMD_IP_BLOCK_TYPE_DCE, 2085 .major = 1, 2086 .minor = 0, 2087 .rev = 0, 2088 .funcs = &amdgpu_dm_funcs, 2089 }; 2090 2091 2092 /** 2093 * DOC: atomic 2094 * 2095 * *WIP* 2096 */ 2097 2098 static const struct drm_mode_config_funcs amdgpu_dm_mode_funcs = { 2099 .fb_create = amdgpu_display_user_framebuffer_create, 2100 .get_format_info = amdgpu_dm_plane_get_format_info, 2101 .atomic_check = amdgpu_dm_atomic_check, 2102 .atomic_commit = drm_atomic_helper_commit, 2103 }; 2104 2105 static struct drm_mode_config_helper_funcs amdgpu_dm_mode_config_helperfuncs = { 2106 .atomic_commit_tail = amdgpu_dm_atomic_commit_tail, 2107 .atomic_commit_setup = amdgpu_dm_atomic_setup_commit, 2108 }; 2109 2110 /* 2111 * Acquires the lock for the atomic state object and returns 2112 * the new atomic state. 2113 * 2114 * This should only be called during atomic check. 2115 */ 2116 int dm_atomic_get_state(struct drm_atomic_commit *state, 2117 struct dm_atomic_state **dm_state) 2118 { 2119 struct drm_device *dev = state->dev; 2120 struct amdgpu_device *adev = drm_to_adev(dev); 2121 struct amdgpu_display_manager *dm = &adev->dm; 2122 struct drm_private_state *priv_state; 2123 2124 if (*dm_state) 2125 return 0; 2126 2127 priv_state = drm_atomic_get_private_obj_state(state, &dm->atomic_obj); 2128 if (IS_ERR(priv_state)) 2129 return PTR_ERR(priv_state); 2130 2131 *dm_state = to_dm_atomic_state(priv_state); 2132 2133 return 0; 2134 } 2135 2136 STATIC_IFN_KUNIT struct dm_atomic_state * 2137 dm_atomic_get_new_state(struct drm_atomic_commit *state) 2138 { 2139 struct drm_device *dev = state->dev; 2140 struct amdgpu_device *adev = drm_to_adev(dev); 2141 struct amdgpu_display_manager *dm = &adev->dm; 2142 struct drm_private_obj *obj; 2143 struct drm_private_state *new_obj_state; 2144 int i; 2145 2146 for_each_new_private_obj_in_state(state, obj, new_obj_state, i) { 2147 if (obj->funcs == dm->atomic_obj.funcs) 2148 return to_dm_atomic_state(new_obj_state); 2149 } 2150 2151 return NULL; 2152 } 2153 EXPORT_IF_KUNIT(dm_atomic_get_new_state); 2154 2155 static struct drm_private_state * 2156 dm_atomic_duplicate_state(struct drm_private_obj *obj) 2157 { 2158 struct dm_atomic_state *old_state, *new_state; 2159 2160 new_state = kzalloc_obj(*new_state); 2161 if (!new_state) 2162 return NULL; 2163 2164 __drm_atomic_helper_private_obj_duplicate_state(obj, &new_state->base); 2165 2166 old_state = to_dm_atomic_state(obj->state); 2167 2168 if (old_state && old_state->context) 2169 new_state->context = dc_state_create_copy(old_state->context); 2170 2171 if (!new_state->context) { 2172 kfree(new_state); 2173 return NULL; 2174 } 2175 2176 return &new_state->base; 2177 } 2178 2179 STATIC_IFN_KUNIT void dm_atomic_destroy_state(struct drm_private_obj *obj, 2180 struct drm_private_state *state) 2181 { 2182 struct dm_atomic_state *dm_state = to_dm_atomic_state(state); 2183 2184 if (dm_state && dm_state->context) 2185 dc_state_release(dm_state->context); 2186 2187 kfree(dm_state); 2188 } 2189 EXPORT_IF_KUNIT(dm_atomic_destroy_state); 2190 2191 static struct drm_private_state * 2192 dm_atomic_create_state(struct drm_private_obj *obj) 2193 { 2194 struct amdgpu_device *adev = drm_to_adev(obj->dev); 2195 struct dm_atomic_state *dm_state; 2196 struct dc_state *context; 2197 2198 dm_state = kzalloc_obj(*dm_state); 2199 if (!dm_state) 2200 return ERR_PTR(-ENOMEM); 2201 2202 context = dc_state_create_current_copy(adev->dm.dc); 2203 if (!context) { 2204 kfree(dm_state); 2205 return ERR_PTR(-ENOMEM); 2206 } 2207 2208 __drm_atomic_helper_private_obj_create_state(obj, &dm_state->base); 2209 dm_state->context = context; 2210 2211 return &dm_state->base; 2212 } 2213 2214 static struct drm_private_state_funcs dm_atomic_state_funcs = { 2215 .atomic_create_state = dm_atomic_create_state, 2216 .atomic_duplicate_state = dm_atomic_duplicate_state, 2217 .atomic_destroy_state = dm_atomic_destroy_state, 2218 }; 2219 2220 static int amdgpu_dm_mode_config_init(struct amdgpu_device *adev) 2221 { 2222 int r; 2223 2224 adev->mode_info.mode_config_initialized = true; 2225 2226 adev_to_drm(adev)->mode_config.funcs = (void *)&amdgpu_dm_mode_funcs; 2227 adev_to_drm(adev)->mode_config.helper_private = &amdgpu_dm_mode_config_helperfuncs; 2228 2229 adev_to_drm(adev)->mode_config.max_width = 16384; 2230 adev_to_drm(adev)->mode_config.max_height = 16384; 2231 2232 adev_to_drm(adev)->mode_config.preferred_depth = 24; 2233 if (adev->asic_type == CHIP_HAWAII) 2234 /* disable prefer shadow for now due to hibernation issues */ 2235 adev_to_drm(adev)->mode_config.prefer_shadow = 0; 2236 else 2237 adev_to_drm(adev)->mode_config.prefer_shadow = 1; 2238 /* indicates support for immediate flip */ 2239 adev_to_drm(adev)->mode_config.async_page_flip = true; 2240 2241 drm_atomic_private_obj_init(adev_to_drm(adev), 2242 &adev->dm.atomic_obj, 2243 &dm_atomic_state_funcs); 2244 2245 r = amdgpu_display_modeset_create_props(adev); 2246 if (r) 2247 return r; 2248 2249 #ifdef AMD_PRIVATE_COLOR 2250 if (amdgpu_dm_create_color_properties(adev)) 2251 return -ENOMEM; 2252 #endif 2253 2254 r = amdgpu_dm_audio_init(adev); 2255 if (r) 2256 return r; 2257 2258 return 0; 2259 } 2260 2261 static int initialize_plane(struct amdgpu_display_manager *dm, 2262 struct amdgpu_mode_info *mode_info, int plane_id, 2263 enum drm_plane_type plane_type, 2264 const struct dc_plane_cap *plane_cap) 2265 { 2266 struct drm_plane *plane; 2267 unsigned long possible_crtcs; 2268 int ret = 0; 2269 2270 plane = kzalloc_obj(struct drm_plane); 2271 if (!plane) { 2272 drm_err(adev_to_drm(dm->adev), "KMS: Failed to allocate plane\n"); 2273 return -ENOMEM; 2274 } 2275 plane->type = plane_type; 2276 2277 /* 2278 * HACK: IGT tests expect that the primary plane for a CRTC 2279 * can only have one possible CRTC. Only expose support for 2280 * any CRTC if they're not going to be used as a primary plane 2281 * for a CRTC - like overlay or underlay planes. 2282 */ 2283 possible_crtcs = 1 << plane_id; 2284 if (plane_id >= dm->dc->caps.max_streams) 2285 possible_crtcs = 0xff; 2286 2287 ret = amdgpu_dm_plane_init(dm, plane, possible_crtcs, plane_cap); 2288 2289 if (ret) { 2290 drm_err(adev_to_drm(dm->adev), "KMS: Failed to initialize plane\n"); 2291 kfree(plane); 2292 return ret; 2293 } 2294 2295 if (mode_info) 2296 mode_info->planes[plane_id] = plane; 2297 2298 return ret; 2299 } 2300 2301 2302 /* 2303 * In this architecture, the association 2304 * connector -> encoder -> crtc 2305 * id not really requried. The crtc and connector will hold the 2306 * display_index as an abstraction to use with DAL component 2307 * 2308 * Returns 0 on success 2309 */ 2310 static int amdgpu_dm_initialize_drm_device(struct amdgpu_device *adev) 2311 { 2312 struct amdgpu_display_manager *dm = &adev->dm; 2313 s32 i; 2314 struct amdgpu_dm_connector *aconnector = NULL; 2315 struct amdgpu_encoder *aencoder = NULL; 2316 struct amdgpu_mode_info *mode_info = &adev->mode_info; 2317 u32 link_cnt; 2318 s32 primary_planes; 2319 enum dc_connection_type new_connection_type = dc_connection_none; 2320 const struct dc_plane_cap *plane; 2321 bool psr_feature_enabled = false; 2322 bool replay_feature_enabled = false; 2323 int max_overlay = dm->dc->caps.max_slave_planes; 2324 2325 dm->display_indexes_num = dm->dc->caps.max_streams; 2326 /* Update the actual used number of crtc */ 2327 adev->mode_info.num_crtc = adev->dm.display_indexes_num; 2328 2329 amdgpu_dm_set_irq_funcs(adev); 2330 2331 link_cnt = dm->dc->caps.max_links; 2332 if (amdgpu_dm_mode_config_init(dm->adev)) { 2333 drm_err(adev_to_drm(adev), "DM: Failed to initialize mode config\n"); 2334 return -EINVAL; 2335 } 2336 2337 /* There is one primary plane per CRTC */ 2338 primary_planes = dm->dc->caps.max_streams; 2339 if (primary_planes > AMDGPU_MAX_PLANES) { 2340 drm_err(adev_to_drm(adev), "DM: Plane nums out of 6 planes\n"); 2341 return -EINVAL; 2342 } 2343 2344 /* 2345 * Initialize primary planes, implicit planes for legacy IOCTLS. 2346 * Order is reversed to match iteration order in atomic check. 2347 */ 2348 for (i = (primary_planes - 1); i >= 0; i--) { 2349 plane = &dm->dc->caps.planes[i]; 2350 2351 if (initialize_plane(dm, mode_info, i, 2352 DRM_PLANE_TYPE_PRIMARY, plane)) { 2353 drm_err(adev_to_drm(adev), "KMS: Failed to initialize primary plane\n"); 2354 goto fail; 2355 } 2356 } 2357 2358 /* 2359 * Initialize overlay planes, index starting after primary planes. 2360 * These planes have a higher DRM index than the primary planes since 2361 * they should be considered as having a higher z-order. 2362 * Order is reversed to match iteration order in atomic check. 2363 * 2364 * Only support DCN for now, and only expose one so we don't encourage 2365 * userspace to use up all the pipes. 2366 */ 2367 for (i = 0; i < dm->dc->caps.max_planes; ++i) { 2368 struct dc_plane_cap *plane = &dm->dc->caps.planes[i]; 2369 2370 /* Do not create overlay if MPO disabled */ 2371 if (amdgpu_dc_debug_mask & DC_DISABLE_MPO) 2372 break; 2373 2374 if (plane->type != DC_PLANE_TYPE_DCN_UNIVERSAL) 2375 continue; 2376 2377 if (!plane->pixel_format_support.argb8888) 2378 continue; 2379 2380 if (max_overlay-- == 0) 2381 break; 2382 2383 if (initialize_plane(dm, NULL, primary_planes + i, 2384 DRM_PLANE_TYPE_OVERLAY, plane)) { 2385 drm_err(adev_to_drm(adev), "KMS: Failed to initialize overlay plane\n"); 2386 goto fail; 2387 } 2388 } 2389 2390 for (i = 0; i < dm->dc->caps.max_streams; i++) 2391 if (amdgpu_dm_crtc_init(dm, mode_info->planes[i], i)) { 2392 drm_err(adev_to_drm(adev), "KMS: Failed to initialize crtc\n"); 2393 goto fail; 2394 } 2395 2396 /* Use Outbox interrupt */ 2397 switch (amdgpu_ip_version(adev, DCE_HWIP, 0)) { 2398 case IP_VERSION(3, 0, 0): 2399 case IP_VERSION(3, 1, 2): 2400 case IP_VERSION(3, 1, 3): 2401 case IP_VERSION(3, 1, 4): 2402 case IP_VERSION(3, 1, 5): 2403 case IP_VERSION(3, 1, 6): 2404 case IP_VERSION(3, 2, 0): 2405 case IP_VERSION(3, 2, 1): 2406 case IP_VERSION(2, 1, 0): 2407 case IP_VERSION(3, 5, 0): 2408 case IP_VERSION(3, 5, 1): 2409 case IP_VERSION(3, 6, 0): 2410 case IP_VERSION(4, 0, 1): 2411 case IP_VERSION(4, 2, 0): 2412 case IP_VERSION(4, 2, 1): 2413 if (amdgpu_dm_register_outbox_irq_handlers(dm->adev)) { 2414 drm_err(adev_to_drm(adev), "DM: Failed to initialize IRQ\n"); 2415 goto fail; 2416 } 2417 break; 2418 default: 2419 drm_dbg_kms(adev_to_drm(adev), "Unsupported DCN IP version for outbox: 0x%X\n", 2420 amdgpu_ip_version(adev, DCE_HWIP, 0)); 2421 } 2422 2423 /* Determine whether to enable PSR support by default. */ 2424 if (!(amdgpu_dc_debug_mask & DC_DISABLE_PSR)) { 2425 switch (amdgpu_ip_version(adev, DCE_HWIP, 0)) { 2426 case IP_VERSION(3, 1, 2): 2427 case IP_VERSION(3, 1, 3): 2428 case IP_VERSION(3, 1, 4): 2429 case IP_VERSION(3, 1, 5): 2430 case IP_VERSION(3, 1, 6): 2431 case IP_VERSION(3, 2, 0): 2432 case IP_VERSION(3, 2, 1): 2433 case IP_VERSION(3, 5, 0): 2434 case IP_VERSION(3, 5, 1): 2435 case IP_VERSION(3, 6, 0): 2436 case IP_VERSION(4, 0, 1): 2437 case IP_VERSION(4, 2, 0): 2438 case IP_VERSION(4, 2, 1): 2439 psr_feature_enabled = true; 2440 break; 2441 default: 2442 psr_feature_enabled = amdgpu_dc_feature_mask & DC_PSR_MASK; 2443 break; 2444 } 2445 } 2446 2447 /* Determine whether to enable Replay support by default. */ 2448 if (!(amdgpu_dc_debug_mask & DC_DISABLE_REPLAY)) { 2449 switch (amdgpu_ip_version(adev, DCE_HWIP, 0)) { 2450 case IP_VERSION(3, 1, 4): 2451 case IP_VERSION(3, 2, 0): 2452 case IP_VERSION(3, 2, 1): 2453 case IP_VERSION(3, 5, 0): 2454 case IP_VERSION(3, 5, 1): 2455 case IP_VERSION(3, 6, 0): 2456 case IP_VERSION(4, 2, 0): 2457 case IP_VERSION(4, 2, 1): 2458 replay_feature_enabled = true; 2459 break; 2460 2461 default: 2462 replay_feature_enabled = amdgpu_dc_feature_mask & DC_REPLAY_MASK; 2463 break; 2464 } 2465 } 2466 2467 if (link_cnt > MAX_LINKS) { 2468 drm_err(adev_to_drm(adev), 2469 "KMS: Cannot support more than %d display indexes\n", 2470 MAX_LINKS); 2471 goto fail; 2472 } 2473 2474 /* loops over all connectors on the board */ 2475 for (i = 0; i < link_cnt; i++) { 2476 struct dc_link *link = NULL; 2477 2478 link = dc_get_link_at_index(dm->dc, i); 2479 2480 if (link->connector_signal == SIGNAL_TYPE_VIRTUAL) { 2481 struct amdgpu_dm_wb_connector *wbcon = kzalloc_obj(*wbcon); 2482 2483 if (!wbcon) { 2484 drm_err(adev_to_drm(adev), "KMS: Failed to allocate writeback connector\n"); 2485 continue; 2486 } 2487 2488 if (amdgpu_dm_wb_connector_init(dm, wbcon, i)) { 2489 drm_err(adev_to_drm(adev), "KMS: Failed to initialize writeback connector\n"); 2490 kfree(wbcon); 2491 continue; 2492 } 2493 2494 link->psr_settings.psr_feature_enabled = false; 2495 link->psr_settings.psr_version = DC_PSR_VERSION_UNSUPPORTED; 2496 2497 continue; 2498 } 2499 2500 aconnector = kzalloc_obj(*aconnector); 2501 if (!aconnector) 2502 goto fail; 2503 2504 aencoder = kzalloc_obj(*aencoder); 2505 if (!aencoder) 2506 goto fail; 2507 2508 if (amdgpu_dm_encoder_init(dm->ddev, aencoder, i)) { 2509 drm_err(adev_to_drm(adev), "KMS: Failed to initialize encoder\n"); 2510 goto fail; 2511 } 2512 2513 if (amdgpu_dm_connector_init(dm, aconnector, i, aencoder)) { 2514 drm_err(adev_to_drm(adev), "KMS: Failed to initialize connector\n"); 2515 goto fail; 2516 } 2517 2518 if (dm->hpd_rx_offload_wq) 2519 dm->hpd_rx_offload_wq[aconnector->base.index].aconnector = 2520 aconnector; 2521 2522 if (!dc_link_detect_connection_type(link, &new_connection_type)) 2523 drm_err(adev_to_drm(adev), "KMS: Failed to detect connector\n"); 2524 2525 if (aconnector->base.force && new_connection_type == dc_connection_none) { 2526 amdgpu_dm_emulated_link_detect(link); 2527 amdgpu_dm_update_connector_after_detect(aconnector); 2528 } else { 2529 bool ret = false; 2530 2531 mutex_lock(&dm->dc_lock); 2532 dc_exit_ips_for_hw_access(dm->dc); 2533 ret = dc_link_detect(link, DETECT_REASON_BOOT); 2534 mutex_unlock(&dm->dc_lock); 2535 2536 if (ret) { 2537 amdgpu_dm_update_connector_after_detect(aconnector); 2538 amdgpu_dm_setup_backlight_device(dm, aconnector); 2539 2540 /* Disable PSR if Replay can be enabled */ 2541 if (replay_feature_enabled) 2542 if (amdgpu_dm_set_replay_caps(link, aconnector)) 2543 psr_feature_enabled = false; 2544 2545 if (psr_feature_enabled) { 2546 amdgpu_dm_set_psr_caps(link, aconnector); 2547 drm_info(adev_to_drm(adev), "%s: PSR support %d, DC PSR ver %d, sink PSR ver %d DPCD caps 0x%x su_y_granularity %d\n", 2548 aconnector->base.name, 2549 link->psr_settings.psr_feature_enabled, 2550 link->psr_settings.psr_version, 2551 link->dpcd_caps.psr_info.psr_version, 2552 link->dpcd_caps.psr_info.psr_dpcd_caps.raw, 2553 link->dpcd_caps.psr_info.psr2_su_y_granularity_cap); 2554 } 2555 } 2556 } 2557 amdgpu_set_panel_orientation(&aconnector->base); 2558 } 2559 2560 /* Debug dump: list all DC links and their associated sinks after detection 2561 * is complete for all connectors. This provides a comprehensive view of the 2562 * final state without repeating the dump for each connector. 2563 */ 2564 amdgpu_dm_dump_links_and_sinks(adev); 2565 2566 /* Software is initialized. Now we can register interrupt handlers. */ 2567 switch (adev->asic_type) { 2568 #if defined(CONFIG_DRM_AMD_DC_SI) 2569 case CHIP_TAHITI: 2570 case CHIP_PITCAIRN: 2571 case CHIP_VERDE: 2572 case CHIP_OLAND: 2573 #endif 2574 case CHIP_BONAIRE: 2575 case CHIP_HAWAII: 2576 case CHIP_KAVERI: 2577 case CHIP_KABINI: 2578 case CHIP_MULLINS: 2579 case CHIP_TONGA: 2580 case CHIP_FIJI: 2581 case CHIP_CARRIZO: 2582 case CHIP_STONEY: 2583 case CHIP_POLARIS11: 2584 case CHIP_POLARIS10: 2585 case CHIP_POLARIS12: 2586 case CHIP_VEGAM: 2587 case CHIP_VEGA10: 2588 case CHIP_VEGA12: 2589 case CHIP_VEGA20: 2590 if (amdgpu_dm_dce110_register_irq_handlers(dm->adev)) { 2591 drm_err(adev_to_drm(adev), "DM: Failed to initialize IRQ\n"); 2592 goto fail; 2593 } 2594 break; 2595 default: 2596 switch (amdgpu_ip_version(adev, DCE_HWIP, 0)) { 2597 case IP_VERSION(1, 0, 0): 2598 case IP_VERSION(1, 0, 1): 2599 case IP_VERSION(2, 0, 2): 2600 case IP_VERSION(2, 0, 3): 2601 case IP_VERSION(2, 0, 0): 2602 case IP_VERSION(2, 1, 0): 2603 case IP_VERSION(3, 0, 0): 2604 case IP_VERSION(3, 0, 2): 2605 case IP_VERSION(3, 0, 3): 2606 case IP_VERSION(3, 0, 1): 2607 case IP_VERSION(3, 1, 2): 2608 case IP_VERSION(3, 1, 3): 2609 case IP_VERSION(3, 1, 4): 2610 case IP_VERSION(3, 1, 5): 2611 case IP_VERSION(3, 1, 6): 2612 case IP_VERSION(3, 2, 0): 2613 case IP_VERSION(3, 2, 1): 2614 case IP_VERSION(3, 5, 0): 2615 case IP_VERSION(3, 5, 1): 2616 case IP_VERSION(3, 6, 0): 2617 case IP_VERSION(4, 0, 1): 2618 case IP_VERSION(4, 2, 0): 2619 case IP_VERSION(4, 2, 1): 2620 if (amdgpu_dm_dcn10_register_irq_handlers(dm->adev)) { 2621 drm_err(adev_to_drm(adev), "DM: Failed to initialize IRQ\n"); 2622 goto fail; 2623 } 2624 break; 2625 default: 2626 drm_err(adev_to_drm(adev), "Unsupported DCE IP versions: 0x%X\n", 2627 amdgpu_ip_version(adev, DCE_HWIP, 0)); 2628 goto fail; 2629 } 2630 break; 2631 } 2632 2633 return 0; 2634 fail: 2635 kfree(aencoder); 2636 kfree(aconnector); 2637 2638 return -EINVAL; 2639 } 2640 2641 static void amdgpu_dm_destroy_drm_device(struct amdgpu_display_manager *dm) 2642 { 2643 if (dm->atomic_obj.state) 2644 drm_atomic_private_obj_fini(&dm->atomic_obj); 2645 } 2646 2647 /****************************************************************************** 2648 * amdgpu_display_funcs functions 2649 *****************************************************************************/ 2650 2651 /* 2652 * dm_bandwidth_update - program display watermarks 2653 * 2654 * @adev: amdgpu_device pointer 2655 * 2656 * Calculate and program the display watermarks and line buffer allocation. 2657 */ 2658 STATIC_IFN_KUNIT void dm_bandwidth_update(struct amdgpu_device *adev) 2659 { 2660 /* TODO: implement later */ 2661 } 2662 EXPORT_IF_KUNIT(dm_bandwidth_update); 2663 2664 static const struct amdgpu_display_funcs dm_display_funcs = { 2665 .bandwidth_update = dm_bandwidth_update, /* called unconditionally */ 2666 .vblank_get_counter = dm_vblank_get_counter,/* called unconditionally */ 2667 .backlight_set_level = NULL, /* never called for DC */ 2668 .backlight_get_level = NULL, /* never called for DC */ 2669 .hpd_sense = NULL,/* called unconditionally */ 2670 .hpd_set_polarity = NULL, /* called unconditionally */ 2671 .hpd_get_gpio_reg = NULL, /* VBIOS parsing. DAL does it. */ 2672 .page_flip_get_scanoutpos = 2673 dm_crtc_get_scanoutpos,/* called unconditionally */ 2674 .add_encoder = NULL, /* VBIOS parsing. DAL does it. */ 2675 .add_connector = NULL, /* VBIOS parsing. DAL does it. */ 2676 }; 2677 2678 #if defined(CONFIG_DEBUG_KERNEL_DC) 2679 2680 static ssize_t s3_debug_store(struct device *device, 2681 struct device_attribute *attr, 2682 const char *buf, 2683 size_t count) 2684 { 2685 int ret; 2686 int s3_state; 2687 struct drm_device *drm_dev = dev_get_drvdata(device); 2688 struct amdgpu_device *adev = drm_to_adev(drm_dev); 2689 struct amdgpu_ip_block *ip_block; 2690 2691 ip_block = amdgpu_device_ip_get_ip_block(adev, AMD_IP_BLOCK_TYPE_DCE); 2692 if (!ip_block) 2693 return -EINVAL; 2694 2695 ret = kstrtoint(buf, 0, &s3_state); 2696 2697 if (ret == 0) { 2698 if (s3_state) { 2699 dm_resume(ip_block); 2700 drm_kms_helper_hotplug_event(adev_to_drm(adev)); 2701 } else 2702 dm_suspend(ip_block); 2703 } 2704 2705 return ret == 0 ? count : 0; 2706 } 2707 2708 DEVICE_ATTR_WO(s3_debug); 2709 2710 #endif 2711 2712 static int dm_early_init(struct amdgpu_ip_block *ip_block) 2713 { 2714 struct amdgpu_device *adev = ip_block->adev; 2715 struct amdgpu_mode_info *mode_info = &adev->mode_info; 2716 struct atom_context *ctx = mode_info->atom_context; 2717 int index = GetIndexIntoMasterTable(DATA, Object_Header); 2718 u16 data_offset; 2719 2720 /* if there is no object header, skip DM */ 2721 if (!amdgpu_atom_parse_data_header(ctx, index, NULL, NULL, NULL, &data_offset)) { 2722 adev->harvest_ip_mask |= AMD_HARVEST_IP_DMU_MASK; 2723 drm_info(adev_to_drm(adev), "No object header, skipping DM\n"); 2724 return -ENOENT; 2725 } 2726 2727 switch (adev->asic_type) { 2728 #if defined(CONFIG_DRM_AMD_DC_SI) 2729 case CHIP_TAHITI: 2730 case CHIP_PITCAIRN: 2731 case CHIP_VERDE: 2732 adev->mode_info.num_crtc = 6; 2733 adev->mode_info.num_hpd = 6; 2734 adev->mode_info.num_dig = 6; 2735 break; 2736 case CHIP_OLAND: 2737 adev->mode_info.num_crtc = 2; 2738 adev->mode_info.num_hpd = 2; 2739 adev->mode_info.num_dig = 2; 2740 break; 2741 #endif 2742 case CHIP_BONAIRE: 2743 case CHIP_HAWAII: 2744 adev->mode_info.num_crtc = 6; 2745 adev->mode_info.num_hpd = 6; 2746 adev->mode_info.num_dig = 6; 2747 break; 2748 case CHIP_KAVERI: 2749 adev->mode_info.num_crtc = 4; 2750 adev->mode_info.num_hpd = 6; 2751 adev->mode_info.num_dig = 7; 2752 break; 2753 case CHIP_KABINI: 2754 case CHIP_MULLINS: 2755 adev->mode_info.num_crtc = 2; 2756 adev->mode_info.num_hpd = 6; 2757 adev->mode_info.num_dig = 6; 2758 break; 2759 case CHIP_FIJI: 2760 case CHIP_TONGA: 2761 adev->mode_info.num_crtc = 6; 2762 adev->mode_info.num_hpd = 6; 2763 adev->mode_info.num_dig = 7; 2764 break; 2765 case CHIP_CARRIZO: 2766 adev->mode_info.num_crtc = 3; 2767 adev->mode_info.num_hpd = 6; 2768 adev->mode_info.num_dig = 9; 2769 break; 2770 case CHIP_STONEY: 2771 adev->mode_info.num_crtc = 2; 2772 adev->mode_info.num_hpd = 6; 2773 adev->mode_info.num_dig = 9; 2774 break; 2775 case CHIP_POLARIS11: 2776 case CHIP_POLARIS12: 2777 adev->mode_info.num_crtc = 5; 2778 adev->mode_info.num_hpd = 5; 2779 adev->mode_info.num_dig = 5; 2780 break; 2781 case CHIP_POLARIS10: 2782 case CHIP_VEGAM: 2783 adev->mode_info.num_crtc = 6; 2784 adev->mode_info.num_hpd = 6; 2785 adev->mode_info.num_dig = 6; 2786 break; 2787 case CHIP_VEGA10: 2788 case CHIP_VEGA12: 2789 case CHIP_VEGA20: 2790 adev->mode_info.num_crtc = 6; 2791 adev->mode_info.num_hpd = 6; 2792 adev->mode_info.num_dig = 6; 2793 break; 2794 default: 2795 2796 switch (amdgpu_ip_version(adev, DCE_HWIP, 0)) { 2797 case IP_VERSION(2, 0, 2): 2798 case IP_VERSION(3, 0, 0): 2799 adev->mode_info.num_crtc = 6; 2800 adev->mode_info.num_hpd = 6; 2801 adev->mode_info.num_dig = 6; 2802 break; 2803 case IP_VERSION(2, 0, 0): 2804 case IP_VERSION(3, 0, 2): 2805 adev->mode_info.num_crtc = 5; 2806 adev->mode_info.num_hpd = 5; 2807 adev->mode_info.num_dig = 5; 2808 break; 2809 case IP_VERSION(2, 0, 3): 2810 case IP_VERSION(3, 0, 3): 2811 adev->mode_info.num_crtc = 2; 2812 adev->mode_info.num_hpd = 2; 2813 adev->mode_info.num_dig = 2; 2814 break; 2815 case IP_VERSION(1, 0, 0): 2816 case IP_VERSION(1, 0, 1): 2817 case IP_VERSION(3, 0, 1): 2818 case IP_VERSION(2, 1, 0): 2819 case IP_VERSION(3, 1, 2): 2820 case IP_VERSION(3, 1, 3): 2821 case IP_VERSION(3, 1, 4): 2822 case IP_VERSION(3, 1, 5): 2823 case IP_VERSION(3, 1, 6): 2824 case IP_VERSION(3, 2, 0): 2825 case IP_VERSION(3, 2, 1): 2826 case IP_VERSION(3, 5, 0): 2827 case IP_VERSION(3, 5, 1): 2828 case IP_VERSION(3, 6, 0): 2829 case IP_VERSION(4, 0, 1): 2830 case IP_VERSION(4, 2, 0): 2831 case IP_VERSION(4, 2, 1): 2832 adev->mode_info.num_crtc = 4; 2833 adev->mode_info.num_hpd = 4; 2834 adev->mode_info.num_dig = 4; 2835 break; 2836 default: 2837 drm_err(adev_to_drm(adev), "Unsupported DCE IP versions: 0x%x\n", 2838 amdgpu_ip_version(adev, DCE_HWIP, 0)); 2839 return -EINVAL; 2840 } 2841 break; 2842 } 2843 2844 if (adev->mode_info.funcs == NULL) 2845 adev->mode_info.funcs = &dm_display_funcs; 2846 2847 /* 2848 * Note: Do NOT change adev->reg.audio_endpt.rreg and 2849 * adev->reg.audio_endpt.wreg because they are initialised in 2850 * amdgpu_device_init() 2851 */ 2852 #if defined(CONFIG_DEBUG_KERNEL_DC) 2853 device_create_file( 2854 adev_to_drm(adev)->dev, 2855 &dev_attr_s3_debug); 2856 #endif 2857 adev->dc_enabled = true; 2858 2859 return dm_init_microcode(adev); 2860 } 2861 2862 STATIC_IFN_KUNIT bool modereset_required(struct drm_crtc_state *crtc_state) 2863 { 2864 return !crtc_state->active && drm_atomic_crtc_needs_modeset(crtc_state); 2865 } 2866 EXPORT_IF_KUNIT(modereset_required); 2867 2868 STATIC_IFN_KUNIT int 2869 fill_plane_color_attributes(const struct drm_plane_state *plane_state, 2870 const enum surface_pixel_format format, 2871 enum dc_color_space *color_space) 2872 { 2873 bool full_range; 2874 2875 *color_space = COLOR_SPACE_SRGB; 2876 2877 /* Ignore properties when DRM_CLIENT_CAP_PLANE_COLOR_PIPELINE is set */ 2878 if (plane_state->state && plane_state->state->plane_color_pipeline) 2879 return 0; 2880 2881 /* DRM color properties only affect non-RGB formats. */ 2882 if (format < SURFACE_PIXEL_FORMAT_VIDEO_BEGIN) 2883 return 0; 2884 2885 full_range = (plane_state->color_range == DRM_COLOR_YCBCR_FULL_RANGE); 2886 2887 switch (plane_state->color_encoding) { 2888 case DRM_COLOR_YCBCR_BT601: 2889 if (full_range) 2890 *color_space = COLOR_SPACE_YCBCR601; 2891 else 2892 *color_space = COLOR_SPACE_YCBCR601_LIMITED; 2893 break; 2894 2895 case DRM_COLOR_YCBCR_BT709: 2896 if (full_range) 2897 *color_space = COLOR_SPACE_YCBCR709; 2898 else 2899 *color_space = COLOR_SPACE_YCBCR709_LIMITED; 2900 break; 2901 2902 case DRM_COLOR_YCBCR_BT2020: 2903 if (full_range) 2904 *color_space = COLOR_SPACE_2020_YCBCR_FULL; 2905 else 2906 *color_space = COLOR_SPACE_2020_YCBCR_LIMITED; 2907 break; 2908 2909 default: 2910 return -EINVAL; 2911 } 2912 2913 return 0; 2914 } 2915 EXPORT_IF_KUNIT(fill_plane_color_attributes); 2916 2917 static int 2918 fill_dc_plane_info_and_addr(struct amdgpu_device *adev, 2919 const struct drm_plane_state *plane_state, 2920 struct dc_plane_info *plane_info, 2921 struct dc_plane_address *address, 2922 bool tmz_surface) 2923 { 2924 const struct drm_framebuffer *fb = plane_state->fb; 2925 const struct amdgpu_framebuffer *afb = 2926 to_amdgpu_framebuffer(plane_state->fb); 2927 int ret; 2928 2929 memset(plane_info, 0, sizeof(*plane_info)); 2930 2931 switch (fb->format->format) { 2932 case DRM_FORMAT_C8: 2933 plane_info->format = 2934 SURFACE_PIXEL_FORMAT_GRPH_PALETA_256_COLORS; 2935 break; 2936 case DRM_FORMAT_RGB565: 2937 plane_info->format = SURFACE_PIXEL_FORMAT_GRPH_RGB565; 2938 break; 2939 case DRM_FORMAT_XRGB8888: 2940 case DRM_FORMAT_ARGB8888: 2941 plane_info->format = SURFACE_PIXEL_FORMAT_GRPH_ARGB8888; 2942 break; 2943 case DRM_FORMAT_XRGB2101010: 2944 case DRM_FORMAT_ARGB2101010: 2945 plane_info->format = SURFACE_PIXEL_FORMAT_GRPH_ARGB2101010; 2946 break; 2947 case DRM_FORMAT_XBGR2101010: 2948 case DRM_FORMAT_ABGR2101010: 2949 plane_info->format = SURFACE_PIXEL_FORMAT_GRPH_ABGR2101010; 2950 break; 2951 case DRM_FORMAT_XBGR8888: 2952 case DRM_FORMAT_ABGR8888: 2953 plane_info->format = SURFACE_PIXEL_FORMAT_GRPH_ABGR8888; 2954 break; 2955 case DRM_FORMAT_NV21: 2956 plane_info->format = SURFACE_PIXEL_FORMAT_VIDEO_420_YCbCr; 2957 break; 2958 case DRM_FORMAT_NV12: 2959 plane_info->format = SURFACE_PIXEL_FORMAT_VIDEO_420_YCrCb; 2960 break; 2961 case DRM_FORMAT_P010: 2962 plane_info->format = SURFACE_PIXEL_FORMAT_VIDEO_420_10bpc_YCrCb; 2963 break; 2964 case DRM_FORMAT_XRGB16161616F: 2965 case DRM_FORMAT_ARGB16161616F: 2966 plane_info->format = SURFACE_PIXEL_FORMAT_GRPH_ARGB16161616F; 2967 break; 2968 case DRM_FORMAT_XBGR16161616F: 2969 case DRM_FORMAT_ABGR16161616F: 2970 plane_info->format = SURFACE_PIXEL_FORMAT_GRPH_ABGR16161616F; 2971 break; 2972 case DRM_FORMAT_XRGB16161616: 2973 case DRM_FORMAT_ARGB16161616: 2974 plane_info->format = SURFACE_PIXEL_FORMAT_GRPH_ARGB16161616; 2975 break; 2976 case DRM_FORMAT_XBGR16161616: 2977 case DRM_FORMAT_ABGR16161616: 2978 plane_info->format = SURFACE_PIXEL_FORMAT_GRPH_ABGR16161616; 2979 break; 2980 default: 2981 drm_err(adev_to_drm(adev), 2982 "Unsupported screen format %p4cc\n", 2983 &fb->format->format); 2984 return -EINVAL; 2985 } 2986 2987 switch (plane_state->rotation & DRM_MODE_ROTATE_MASK) { 2988 case DRM_MODE_ROTATE_0: 2989 plane_info->rotation = ROTATION_ANGLE_0; 2990 break; 2991 case DRM_MODE_ROTATE_90: 2992 plane_info->rotation = ROTATION_ANGLE_90; 2993 break; 2994 case DRM_MODE_ROTATE_180: 2995 plane_info->rotation = ROTATION_ANGLE_180; 2996 break; 2997 case DRM_MODE_ROTATE_270: 2998 plane_info->rotation = ROTATION_ANGLE_270; 2999 break; 3000 default: 3001 plane_info->rotation = ROTATION_ANGLE_0; 3002 break; 3003 } 3004 3005 3006 plane_info->visible = true; 3007 plane_info->stereo_format = PLANE_STEREO_FORMAT_NONE; 3008 3009 plane_info->layer_index = plane_state->normalized_zpos; 3010 3011 ret = fill_plane_color_attributes(plane_state, plane_info->format, 3012 &plane_info->color_space); 3013 if (ret) 3014 return ret; 3015 3016 ret = amdgpu_dm_plane_fill_plane_buffer_attributes(adev, afb, plane_info->format, 3017 plane_info->rotation, 3018 &plane_info->tiling_info, 3019 &plane_info->plane_size, 3020 &plane_info->dcc, address, 3021 tmz_surface); 3022 if (ret) 3023 return ret; 3024 3025 amdgpu_dm_plane_fill_blending_from_plane_state( 3026 plane_state, &plane_info->per_pixel_alpha, &plane_info->pre_multiplied_alpha, 3027 &plane_info->global_alpha, &plane_info->global_alpha_value); 3028 3029 return 0; 3030 } 3031 3032 static int fill_dc_plane_attributes(struct amdgpu_device *adev, 3033 struct dc_plane_state *dc_plane_state, 3034 struct drm_plane_state *plane_state, 3035 struct drm_crtc_state *crtc_state) 3036 { 3037 struct dm_crtc_state *dm_crtc_state = to_dm_crtc_state(crtc_state); 3038 struct amdgpu_framebuffer *afb = (struct amdgpu_framebuffer *)plane_state->fb; 3039 struct dc_scaling_info scaling_info; 3040 struct dc_plane_info plane_info; 3041 int ret; 3042 3043 ret = amdgpu_dm_plane_fill_dc_scaling_info(adev, plane_state, &scaling_info); 3044 if (ret) 3045 return ret; 3046 3047 dc_plane_state->src_rect = scaling_info.src_rect; 3048 dc_plane_state->dst_rect = scaling_info.dst_rect; 3049 dc_plane_state->clip_rect = scaling_info.clip_rect; 3050 dc_plane_state->scaling_quality = scaling_info.scaling_quality; 3051 3052 ret = fill_dc_plane_info_and_addr(adev, plane_state, 3053 &plane_info, 3054 &dc_plane_state->address, 3055 afb->tmz_surface); 3056 if (ret) 3057 return ret; 3058 3059 dc_plane_state->format = plane_info.format; 3060 dc_plane_state->color_space = plane_info.color_space; 3061 dc_plane_state->format = plane_info.format; 3062 dc_plane_state->plane_size = plane_info.plane_size; 3063 dc_plane_state->rotation = plane_info.rotation; 3064 dc_plane_state->horizontal_mirror = plane_info.horizontal_mirror; 3065 dc_plane_state->stereo_format = plane_info.stereo_format; 3066 dc_plane_state->tiling_info = plane_info.tiling_info; 3067 dc_plane_state->visible = plane_info.visible; 3068 dc_plane_state->per_pixel_alpha = plane_info.per_pixel_alpha; 3069 dc_plane_state->pre_multiplied_alpha = plane_info.pre_multiplied_alpha; 3070 dc_plane_state->global_alpha = plane_info.global_alpha; 3071 dc_plane_state->global_alpha_value = plane_info.global_alpha_value; 3072 dc_plane_state->dcc = plane_info.dcc; 3073 dc_plane_state->layer_index = plane_info.layer_index; 3074 dc_plane_state->flip_int_enabled = true; 3075 3076 /* 3077 * Always set input transfer function, since plane state is refreshed 3078 * every time. 3079 */ 3080 ret = amdgpu_dm_update_plane_color_mgmt(dm_crtc_state, 3081 plane_state, 3082 dc_plane_state); 3083 if (ret) 3084 return ret; 3085 3086 return 0; 3087 } 3088 3089 static inline void fill_dc_dirty_rect(struct drm_plane *plane, 3090 struct rect *dirty_rect, int32_t x, 3091 s32 y, s32 width, s32 height, 3092 int *i, bool ffu) 3093 { 3094 WARN_ON(*i >= DC_MAX_DIRTY_RECTS); 3095 3096 dirty_rect->x = x; 3097 dirty_rect->y = y; 3098 dirty_rect->width = width; 3099 dirty_rect->height = height; 3100 3101 if (ffu) 3102 drm_dbg(plane->dev, 3103 "[PLANE:%d] PSR FFU dirty rect size (%d, %d)\n", 3104 plane->base.id, width, height); 3105 else 3106 drm_dbg(plane->dev, 3107 "[PLANE:%d] PSR SU dirty rect at (%d, %d) size (%d, %d)", 3108 plane->base.id, x, y, width, height); 3109 3110 (*i)++; 3111 } 3112 3113 /** 3114 * fill_dc_dirty_rects() - Fill DC dirty regions for PSR selective updates 3115 * 3116 * @plane: DRM plane containing dirty regions that need to be flushed to the eDP 3117 * remote fb 3118 * @old_plane_state: Old state of @plane 3119 * @new_plane_state: New state of @plane 3120 * @crtc_state: New state of CRTC connected to the @plane 3121 * @flip_addrs: DC flip tracking struct, which also tracts dirty rects 3122 * @is_psr_su: Flag indicating whether Panel Self Refresh Selective Update (PSR SU) is enabled. 3123 * If PSR SU is enabled and damage clips are available, only the regions of the screen 3124 * that have changed will be updated. If PSR SU is not enabled, 3125 * or if damage clips are not available, the entire screen will be updated. 3126 * @dirty_regions_changed: dirty regions changed 3127 * 3128 * For PSR SU, DC informs the DMUB uController of dirty rectangle regions 3129 * (referred to as "damage clips" in DRM nomenclature) that require updating on 3130 * the eDP remote buffer. The responsibility of specifying the dirty regions is 3131 * amdgpu_dm's. 3132 * 3133 * A damage-aware DRM client should fill the FB_DAMAGE_CLIPS property on the 3134 * plane with regions that require flushing to the eDP remote buffer. In 3135 * addition, certain use cases - such as cursor and multi-plane overlay (MPO) - 3136 * implicitly provide damage clips without any client support via the plane 3137 * bounds. 3138 */ 3139 static void fill_dc_dirty_rects(struct drm_plane *plane, 3140 struct drm_plane_state *old_plane_state, 3141 struct drm_plane_state *new_plane_state, 3142 struct drm_crtc_state *crtc_state, 3143 struct dc_flip_addrs *flip_addrs, 3144 bool is_psr_su, 3145 bool *dirty_regions_changed) 3146 { 3147 struct dm_crtc_state *dm_crtc_state = to_dm_crtc_state(crtc_state); 3148 struct rect *dirty_rects = flip_addrs->dirty_rects; 3149 u32 num_clips = 0; 3150 struct drm_mode_rect *clips = NULL; 3151 bool bb_changed; 3152 bool fb_changed; 3153 u32 i = 0; 3154 *dirty_regions_changed = false; 3155 3156 /* 3157 * Cursor plane has it's own dirty rect update interface. See 3158 * dcn10_dmub_update_cursor_data and dmub_cmd_update_cursor_info_data 3159 */ 3160 if (plane->type == DRM_PLANE_TYPE_CURSOR) 3161 return; 3162 3163 if (new_plane_state->rotation != DRM_MODE_ROTATE_0) 3164 goto ffu; 3165 3166 if (!new_plane_state->ignore_damage_clips) { 3167 num_clips = drm_plane_get_damage_clips_count(new_plane_state); 3168 clips = drm_plane_get_damage_clips(new_plane_state); 3169 } 3170 3171 if (num_clips && (!amdgpu_damage_clips || (amdgpu_damage_clips < 0 && 3172 is_psr_su))) 3173 goto ffu; 3174 3175 if (!dm_crtc_state->mpo_requested) { 3176 if (!num_clips || num_clips > DC_MAX_DIRTY_RECTS) 3177 goto ffu; 3178 3179 for (; flip_addrs->dirty_rect_count < num_clips; clips++) 3180 fill_dc_dirty_rect(new_plane_state->plane, 3181 &dirty_rects[flip_addrs->dirty_rect_count], 3182 clips->x1, clips->y1, 3183 clips->x2 - clips->x1, clips->y2 - clips->y1, 3184 &flip_addrs->dirty_rect_count, 3185 false); 3186 return; 3187 } 3188 3189 /* 3190 * MPO is requested. Add entire plane bounding box to dirty rects if 3191 * flipped to or damaged. 3192 * 3193 * If plane is moved or resized, also add old bounding box to dirty 3194 * rects. 3195 */ 3196 fb_changed = old_plane_state->fb->base.id != 3197 new_plane_state->fb->base.id; 3198 bb_changed = (old_plane_state->crtc_x != new_plane_state->crtc_x || 3199 old_plane_state->crtc_y != new_plane_state->crtc_y || 3200 old_plane_state->crtc_w != new_plane_state->crtc_w || 3201 old_plane_state->crtc_h != new_plane_state->crtc_h); 3202 3203 drm_dbg(plane->dev, 3204 "[PLANE:%d] PSR bb_changed:%d fb_changed:%d num_clips:%d\n", 3205 new_plane_state->plane->base.id, 3206 bb_changed, fb_changed, num_clips); 3207 3208 *dirty_regions_changed = bb_changed; 3209 3210 if ((num_clips + (bb_changed ? 2 : 0)) > DC_MAX_DIRTY_RECTS) 3211 goto ffu; 3212 3213 if (bb_changed) { 3214 fill_dc_dirty_rect(new_plane_state->plane, &dirty_rects[i], 3215 new_plane_state->crtc_x, 3216 new_plane_state->crtc_y, 3217 new_plane_state->crtc_w, 3218 new_plane_state->crtc_h, &i, false); 3219 3220 /* Add old plane bounding-box if plane is moved or resized */ 3221 fill_dc_dirty_rect(new_plane_state->plane, &dirty_rects[i], 3222 old_plane_state->crtc_x, 3223 old_plane_state->crtc_y, 3224 old_plane_state->crtc_w, 3225 old_plane_state->crtc_h, &i, false); 3226 } 3227 3228 if (num_clips) { 3229 for (; i < num_clips; clips++) 3230 fill_dc_dirty_rect(new_plane_state->plane, 3231 &dirty_rects[i], clips->x1, 3232 clips->y1, clips->x2 - clips->x1, 3233 clips->y2 - clips->y1, &i, false); 3234 } else if (fb_changed && !bb_changed) { 3235 fill_dc_dirty_rect(new_plane_state->plane, &dirty_rects[i], 3236 new_plane_state->crtc_x, 3237 new_plane_state->crtc_y, 3238 new_plane_state->crtc_w, 3239 new_plane_state->crtc_h, &i, false); 3240 } 3241 3242 flip_addrs->dirty_rect_count = i; 3243 return; 3244 3245 ffu: 3246 fill_dc_dirty_rect(new_plane_state->plane, &dirty_rects[0], 0, 0, 3247 dm_crtc_state->base.mode.crtc_hdisplay, 3248 dm_crtc_state->base.mode.crtc_vdisplay, 3249 &flip_addrs->dirty_rect_count, true); 3250 } 3251 3252 static int dm_update_mst_vcpi_slots_for_dsc(struct drm_atomic_commit *state, 3253 struct dc_state *dc_state, 3254 struct dsc_mst_fairness_vars *vars) 3255 { 3256 struct dc_stream_state *stream = NULL; 3257 struct drm_connector *connector; 3258 struct drm_connector_state *new_con_state; 3259 struct amdgpu_dm_connector *aconnector; 3260 struct dm_connector_state *dm_conn_state; 3261 int i, j, ret; 3262 int vcpi, pbn_div, pbn = 0, slot_num = 0; 3263 3264 for_each_new_connector_in_state(state, connector, new_con_state, i) { 3265 3266 if (connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK) 3267 continue; 3268 3269 aconnector = to_amdgpu_dm_connector(connector); 3270 3271 if (!aconnector->mst_output_port) 3272 continue; 3273 3274 if (!new_con_state || !new_con_state->crtc) 3275 continue; 3276 3277 dm_conn_state = to_dm_connector_state(new_con_state); 3278 3279 for (j = 0; j < dc_state->stream_count; j++) { 3280 stream = dc_state->streams[j]; 3281 if (!stream) 3282 continue; 3283 3284 if ((struct amdgpu_dm_connector *)stream->dm_stream_context == aconnector) 3285 break; 3286 3287 stream = NULL; 3288 } 3289 3290 if (!stream) 3291 continue; 3292 3293 pbn_div = dm_mst_get_pbn_divider(stream->link); 3294 /* pbn is calculated by compute_mst_dsc_configs_for_state*/ 3295 for (j = 0; j < dc_state->stream_count; j++) { 3296 if (vars[j].aconnector == aconnector) { 3297 pbn = vars[j].pbn; 3298 break; 3299 } 3300 } 3301 3302 if (j == dc_state->stream_count || pbn_div == 0) 3303 continue; 3304 3305 slot_num = DIV_ROUND_UP(pbn, pbn_div); 3306 3307 if (stream->timing.flags.DSC != 1) { 3308 dm_conn_state->pbn = pbn; 3309 dm_conn_state->vcpi_slots = slot_num; 3310 3311 ret = drm_dp_mst_atomic_enable_dsc(state, aconnector->mst_output_port, 3312 dm_conn_state->pbn, false); 3313 if (ret < 0) 3314 return ret; 3315 3316 continue; 3317 } 3318 3319 vcpi = drm_dp_mst_atomic_enable_dsc(state, aconnector->mst_output_port, pbn, true); 3320 if (vcpi < 0) 3321 return vcpi; 3322 3323 dm_conn_state->pbn = pbn; 3324 dm_conn_state->vcpi_slots = vcpi; 3325 } 3326 return 0; 3327 } 3328 3329 static void manage_dm_interrupts(struct amdgpu_device *adev, 3330 struct amdgpu_crtc *acrtc, 3331 struct dm_crtc_state *acrtc_state) 3332 { /* 3333 * We cannot be sure that the frontend index maps to the same 3334 * backend index - some even map to more than one. 3335 * So we have to go through the CRTC to find the right IRQ. 3336 */ 3337 int irq_type = amdgpu_display_crtc_idx_to_irq_type( 3338 adev, 3339 acrtc->crtc_id); 3340 struct drm_device *dev = adev_to_drm(adev); 3341 3342 struct drm_vblank_crtc_config config = {0}; 3343 struct dc_crtc_timing *timing; 3344 int offdelay; 3345 3346 if (acrtc_state) { 3347 timing = &acrtc_state->stream->timing; 3348 3349 if (amdgpu_ip_version(adev, DCE_HWIP, 0) < 3350 IP_VERSION(3, 5, 0) || 3351 !(adev->flags & AMD_IS_APU)) { 3352 /* 3353 * Older HW and DGPU have issues with instant off; 3354 * use a 2 frame offdelay. 3355 */ 3356 offdelay = DIV64_U64_ROUND_UP((u64)20 * 3357 timing->v_total * 3358 timing->h_total, 3359 timing->pix_clk_100hz); 3360 3361 config.offdelay_ms = offdelay ?: 30; 3362 } else { 3363 /* offdelay_ms = 0 will never disable vblank */ 3364 config.offdelay_ms = 1; 3365 config.disable_immediate = true; 3366 } 3367 3368 drm_crtc_vblank_on_config(&acrtc->base, 3369 &config); 3370 /* 3371 * Since pflip_high_irq is no longer registered for DCN, grab an 3372 * extra reference to vupdate irq instead to workaround this 3373 * issue: 3374 * https://gitlab.freedesktop.org/drm/amd/-/work_items/3936 3375 * 3376 * The callbacks to drm_vblank_on/off should really take care of 3377 * this though. 3378 */ 3379 switch (amdgpu_ip_version(adev, DCE_HWIP, 0)) { 3380 case IP_VERSION(3, 0, 0): 3381 case IP_VERSION(3, 0, 2): 3382 case IP_VERSION(3, 0, 3): 3383 case IP_VERSION(3, 2, 0): 3384 if (amdgpu_irq_get(adev, &adev->vupdate_irq, irq_type)) 3385 drm_err(dev, "DM_IRQ: Cannot get vupdate irq!\n"); 3386 #if defined(CONFIG_DRM_AMD_SECURE_DISPLAY) 3387 if (amdgpu_irq_get(adev, &adev->vline0_irq, irq_type)) 3388 drm_err(dev, "DM_IRQ: Cannot get vline0 irq!\n"); 3389 #endif 3390 } 3391 3392 } else { 3393 /* Allow RX6xxx, RX7700, RX7800 GPUs to call amdgpu_irq_put.*/ 3394 switch (amdgpu_ip_version(adev, DCE_HWIP, 0)) { 3395 case IP_VERSION(3, 0, 0): 3396 case IP_VERSION(3, 0, 2): 3397 case IP_VERSION(3, 0, 3): 3398 case IP_VERSION(3, 2, 0): 3399 #if defined(CONFIG_DRM_AMD_SECURE_DISPLAY) 3400 if (amdgpu_irq_put(adev, &adev->vline0_irq, irq_type)) 3401 drm_err(dev, "DM_IRQ: Cannot put vline0 irq!\n"); 3402 #endif 3403 if (amdgpu_irq_put(adev, &adev->vupdate_irq, irq_type)) 3404 drm_err(dev, "DM_IRQ: Cannot put vupdate irq!\n"); 3405 } 3406 3407 drm_crtc_vblank_off(&acrtc->base); 3408 } 3409 } 3410 3411 static void dm_update_pflip_irq_state(struct amdgpu_device *adev, 3412 struct amdgpu_crtc *acrtc) 3413 { 3414 int irq_type = 3415 amdgpu_display_crtc_idx_to_irq_type(adev, acrtc->crtc_id); 3416 3417 /* GRPH_PFLIP is not used on DCN; nothing to reapply. */ 3418 if (amdgpu_ip_version(adev, DCE_HWIP, 0) != 0) 3419 return; 3420 3421 /** 3422 * This reads the current state for the IRQ and force reapplies 3423 * the setting to hardware. 3424 */ 3425 amdgpu_irq_update(adev, &adev->pageflip_irq, irq_type); 3426 } 3427 3428 STATIC_IFN_KUNIT bool 3429 is_scaling_state_different(const struct dm_connector_state *dm_state, 3430 const struct dm_connector_state *old_dm_state) 3431 { 3432 if (dm_state->scaling != old_dm_state->scaling) 3433 return true; 3434 if (!dm_state->underscan_enable && old_dm_state->underscan_enable) { 3435 if (old_dm_state->underscan_hborder != 0 && old_dm_state->underscan_vborder != 0) 3436 return true; 3437 } else if (dm_state->underscan_enable && !old_dm_state->underscan_enable) { 3438 if (dm_state->underscan_hborder != 0 && dm_state->underscan_vborder != 0) 3439 return true; 3440 } else if (dm_state->underscan_hborder != old_dm_state->underscan_hborder || 3441 dm_state->underscan_vborder != old_dm_state->underscan_vborder) 3442 return true; 3443 return false; 3444 } 3445 EXPORT_IF_KUNIT(is_scaling_state_different); 3446 3447 STATIC_IFN_KUNIT bool 3448 is_content_protection_different(struct drm_crtc_state *new_crtc_state, 3449 struct drm_crtc_state *old_crtc_state, 3450 struct drm_connector_state *new_conn_state, 3451 struct drm_connector_state *old_conn_state, 3452 const struct drm_connector *connector, 3453 struct hdcp_workqueue *hdcp_w) 3454 { 3455 struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector); 3456 struct dm_connector_state *dm_con_state = to_dm_connector_state(connector->state); 3457 3458 pr_debug("[HDCP_DM] connector->index: %x connect_status: %x dpms: %x\n", 3459 connector->index, connector->status, connector->dpms); 3460 pr_debug("[HDCP_DM] state protection old: %x new: %x\n", 3461 old_conn_state->content_protection, new_conn_state->content_protection); 3462 3463 if (old_crtc_state) 3464 pr_debug("[HDCP_DM] old crtc en: %x a: %x m: %x a-chg: %x c-chg: %x\n", 3465 old_crtc_state->enable, 3466 old_crtc_state->active, 3467 old_crtc_state->mode_changed, 3468 old_crtc_state->active_changed, 3469 old_crtc_state->connectors_changed); 3470 3471 if (new_crtc_state) 3472 pr_debug("[HDCP_DM] NEW crtc en: %x a: %x m: %x a-chg: %x c-chg: %x\n", 3473 new_crtc_state->enable, 3474 new_crtc_state->active, 3475 new_crtc_state->mode_changed, 3476 new_crtc_state->active_changed, 3477 new_crtc_state->connectors_changed); 3478 3479 /* hdcp content type change */ 3480 if (old_conn_state->hdcp_content_type != new_conn_state->hdcp_content_type && 3481 new_conn_state->content_protection != DRM_MODE_CONTENT_PROTECTION_UNDESIRED) { 3482 new_conn_state->content_protection = DRM_MODE_CONTENT_PROTECTION_DESIRED; 3483 pr_debug("[HDCP_DM] Type0/1 change %s :true\n", __func__); 3484 return true; 3485 } 3486 3487 /* CP is being re enabled, ignore this */ 3488 if (old_conn_state->content_protection == DRM_MODE_CONTENT_PROTECTION_ENABLED && 3489 new_conn_state->content_protection == DRM_MODE_CONTENT_PROTECTION_DESIRED) { 3490 if (new_crtc_state && new_crtc_state->mode_changed) { 3491 new_conn_state->content_protection = DRM_MODE_CONTENT_PROTECTION_DESIRED; 3492 pr_debug("[HDCP_DM] ENABLED->DESIRED & mode_changed %s :true\n", __func__); 3493 return true; 3494 } 3495 new_conn_state->content_protection = DRM_MODE_CONTENT_PROTECTION_ENABLED; 3496 pr_debug("[HDCP_DM] ENABLED -> DESIRED %s :false\n", __func__); 3497 return false; 3498 } 3499 3500 /* S3 resume case, since old state will always be 0 (UNDESIRED) and the restored state will be ENABLED 3501 * 3502 * Handles: UNDESIRED -> ENABLED 3503 */ 3504 if (old_conn_state->content_protection == DRM_MODE_CONTENT_PROTECTION_UNDESIRED && 3505 new_conn_state->content_protection == DRM_MODE_CONTENT_PROTECTION_ENABLED) 3506 new_conn_state->content_protection = DRM_MODE_CONTENT_PROTECTION_DESIRED; 3507 3508 /* Stream removed and re-enabled 3509 * 3510 * Can sometimes overlap with the HPD case, 3511 * thus set update_hdcp to false to avoid 3512 * setting HDCP multiple times. 3513 * 3514 * Handles: DESIRED -> DESIRED (Special case) 3515 */ 3516 if (!(old_conn_state->crtc && old_conn_state->crtc->enabled) && 3517 new_conn_state->crtc && new_conn_state->crtc->enabled && 3518 connector->state->content_protection == DRM_MODE_CONTENT_PROTECTION_DESIRED) { 3519 dm_con_state->update_hdcp = false; 3520 pr_debug("[HDCP_DM] DESIRED->DESIRED (Stream removed and re-enabled) %s :true\n", 3521 __func__); 3522 return true; 3523 } 3524 3525 /* Hot-plug, headless s3, dpms 3526 * 3527 * Only start HDCP if the display is connected/enabled. 3528 * update_hdcp flag will be set to false until the next 3529 * HPD comes in. 3530 * 3531 * Handles: DESIRED -> DESIRED (Special case) 3532 */ 3533 if (dm_con_state->update_hdcp && 3534 new_conn_state->content_protection == DRM_MODE_CONTENT_PROTECTION_DESIRED && 3535 connector->dpms == DRM_MODE_DPMS_ON && aconnector->dc_sink != NULL) { 3536 dm_con_state->update_hdcp = false; 3537 pr_debug("[HDCP_DM] DESIRED->DESIRED (Hot-plug, headless s3, dpms) %s :true\n", 3538 __func__); 3539 return true; 3540 } 3541 3542 if (old_conn_state->content_protection == new_conn_state->content_protection) { 3543 if (new_conn_state->content_protection >= DRM_MODE_CONTENT_PROTECTION_DESIRED) { 3544 if (new_crtc_state && new_crtc_state->mode_changed) { 3545 pr_debug("[HDCP_DM] DESIRED->DESIRED or ENABLE->ENABLE mode_change %s :true\n", 3546 __func__); 3547 return true; 3548 } 3549 pr_debug("[HDCP_DM] DESIRED->DESIRED & ENABLE->ENABLE %s :false\n", 3550 __func__); 3551 return false; 3552 } 3553 3554 pr_debug("[HDCP_DM] UNDESIRED->UNDESIRED %s :false\n", __func__); 3555 return false; 3556 } 3557 3558 if (new_conn_state->content_protection != DRM_MODE_CONTENT_PROTECTION_ENABLED) { 3559 pr_debug("[HDCP_DM] UNDESIRED->DESIRED or DESIRED->UNDESIRED or ENABLED->UNDESIRED %s :true\n", 3560 __func__); 3561 return true; 3562 } 3563 3564 pr_debug("[HDCP_DM] DESIRED->ENABLED %s :false\n", __func__); 3565 return false; 3566 } 3567 EXPORT_IF_KUNIT(is_content_protection_different); 3568 3569 static void remove_stream(struct amdgpu_device *adev, 3570 struct amdgpu_crtc *acrtc, 3571 struct dc_stream_state *stream) 3572 { 3573 /* this is the update mode case */ 3574 3575 acrtc->otg_inst = -1; 3576 acrtc->enabled = false; 3577 } 3578 3579 static void amdgpu_dm_commit_cursors(struct drm_atomic_commit *state) 3580 { 3581 struct drm_plane *plane; 3582 struct drm_plane_state *old_plane_state; 3583 int i; 3584 3585 /* 3586 * TODO: Make this per-stream so we don't issue redundant updates for 3587 * commits with multiple streams. 3588 */ 3589 for_each_old_plane_in_state(state, plane, old_plane_state, i) 3590 if (plane->type == DRM_PLANE_TYPE_CURSOR) 3591 amdgpu_dm_plane_handle_cursor_update(plane, old_plane_state); 3592 } 3593 3594 static inline uint32_t get_mem_type(struct drm_framebuffer *fb) 3595 { 3596 struct amdgpu_bo *abo = gem_to_amdgpu_bo(fb->obj[0]); 3597 3598 return abo->tbo.resource ? abo->tbo.resource->mem_type : 0; 3599 } 3600 3601 static void amdgpu_dm_update_cursor(struct drm_plane *plane, 3602 struct drm_plane_state *old_plane_state, 3603 struct dc_stream_update *update) 3604 { 3605 struct amdgpu_device *adev = drm_to_adev(plane->dev); 3606 struct amdgpu_framebuffer *afb = to_amdgpu_framebuffer(plane->state->fb); 3607 struct drm_crtc *crtc = afb ? plane->state->crtc : old_plane_state->crtc; 3608 struct dm_crtc_state *crtc_state = crtc ? to_dm_crtc_state(crtc->state) : NULL; 3609 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); 3610 uint64_t address = afb ? afb->address : 0; 3611 struct dc_cursor_position position = {0}; 3612 struct dc_cursor_attributes attributes; 3613 int ret; 3614 3615 if (!plane->state->fb && !old_plane_state->fb) 3616 return; 3617 3618 drm_dbg_atomic(plane->dev, "crtc_id=%d with size %d to %d\n", 3619 amdgpu_crtc->crtc_id, plane->state->crtc_w, 3620 plane->state->crtc_h); 3621 3622 ret = amdgpu_dm_plane_get_cursor_position(plane, crtc, &position); 3623 if (ret) 3624 return; 3625 3626 if (!position.enable) { 3627 /* turn off cursor */ 3628 if (crtc_state && crtc_state->stream) { 3629 dc_stream_set_cursor_position(crtc_state->stream, 3630 &position); 3631 update->cursor_position = &crtc_state->stream->cursor_position; 3632 } 3633 return; 3634 } 3635 3636 amdgpu_crtc->cursor_width = plane->state->crtc_w; 3637 amdgpu_crtc->cursor_height = plane->state->crtc_h; 3638 3639 memset(&attributes, 0, sizeof(attributes)); 3640 attributes.address.high_part = upper_32_bits(address); 3641 attributes.address.low_part = lower_32_bits(address); 3642 attributes.width = plane->state->crtc_w; 3643 attributes.height = plane->state->crtc_h; 3644 attributes.color_format = CURSOR_MODE_COLOR_PRE_MULTIPLIED_ALPHA; 3645 attributes.rotation_angle = 0; 3646 attributes.attribute_flags.value = 0; 3647 3648 /* Enable cursor degamma ROM on DCN3+ for implicit sRGB degamma in DRM 3649 * legacy gamma setup. 3650 */ 3651 if (crtc_state->cm_is_degamma_srgb && 3652 adev->dm.dc->caps.color.dpp.gamma_corr) 3653 attributes.attribute_flags.bits.ENABLE_CURSOR_DEGAMMA = 1; 3654 3655 if (afb) 3656 attributes.pitch = afb->base.pitches[0] / afb->base.format->cpp[0]; 3657 3658 if (crtc_state->stream) { 3659 if (!dc_stream_set_cursor_attributes(crtc_state->stream, 3660 &attributes)) 3661 drm_err(adev_to_drm(adev), "DC failed to set cursor attributes\n"); 3662 3663 update->cursor_attributes = &crtc_state->stream->cursor_attributes; 3664 3665 if (!dc_stream_set_cursor_position(crtc_state->stream, 3666 &position)) 3667 drm_err(adev_to_drm(adev), "DC failed to set cursor position\n"); 3668 3669 update->cursor_position = &crtc_state->stream->cursor_position; 3670 } 3671 } 3672 3673 static void amdgpu_dm_enable_self_refresh(struct amdgpu_display_manager *dm, 3674 struct amdgpu_crtc *acrtc_attach, 3675 const struct dm_crtc_state *acrtc_state, 3676 const u64 current_ts) 3677 { 3678 struct psr_settings *psr = &acrtc_state->stream->link->psr_settings; 3679 struct replay_settings *pr = &acrtc_state->stream->link->replay_settings; 3680 struct amdgpu_dm_connector *aconn = 3681 (struct amdgpu_dm_connector *)acrtc_state->stream->dm_stream_context; 3682 3683 /* Decrement skip count when SR is enabled and we're doing fast updates. */ 3684 if (acrtc_state->update_type == UPDATE_TYPE_FAST && 3685 (psr->psr_feature_enabled || pr->replay_feature_enabled)) { 3686 if (aconn->sr_skip_count > 0) 3687 aconn->sr_skip_count--; 3688 3689 /* Allow SR when skip count is 0. */ 3690 acrtc_attach->dm_irq_params.allow_sr_entry = !aconn->sr_skip_count; 3691 3692 /* 3693 * If sink supports PSR SU/Panel Replay, there is no need to rely on 3694 * a vblank event disable request to enable PSR/RP. PSR SU/RP 3695 * can be enabled immediately once OS demonstrates an 3696 * adequate number of fast atomic commits to notify KMD 3697 * of update events. 3698 * See `amdgpu_dm_crtc_vblank_control_worker()`. 3699 */ 3700 if (acrtc_attach->dm_irq_params.allow_sr_entry && 3701 (current_ts - psr->psr_dirty_rects_change_timestamp_ns) > 500000000) { 3702 amdgpu_dm_psr_set_event(dm, acrtc_state->stream, false, 3703 psr_event_hw_programming, false); 3704 3705 amdgpu_dm_replay_set_event(dm, acrtc_state->stream, false, 3706 replay_event_hw_programming, false); 3707 } 3708 } else { 3709 acrtc_attach->dm_irq_params.allow_sr_entry = false; 3710 } 3711 } 3712 3713 static void dm_arm_vblank_event(struct amdgpu_crtc *acrtc, 3714 struct dm_crtc_state *acrtc_state, 3715 bool pflip_update, 3716 bool cursor_update) 3717 { 3718 assert_spin_locked(&acrtc->base.dev->event_lock); 3719 3720 if (!acrtc->base.state->event || acrtc_state->active_planes == 0) 3721 return; 3722 3723 if (pflip_update) { 3724 WARN_ON(acrtc->pflip_status != AMDGPU_FLIP_NONE); 3725 WARN_ON(acrtc->event); 3726 3727 acrtc->pflip_status = AMDGPU_FLIP_SUBMITTED; 3728 acrtc->event = acrtc->base.state->event; 3729 acrtc->base.state->event = NULL; 3730 3731 drm_dbg_state(acrtc->base.dev, 3732 "crtc:%d, pflip_stat:AMDGPU_FLIP_SUBMITTED\n", 3733 acrtc->crtc_id); 3734 } else if (cursor_update) { 3735 acrtc->event = acrtc->base.state->event; 3736 acrtc->base.state->event = NULL; 3737 } 3738 } 3739 3740 /** 3741 * dm_arm_vblank_event_pre_programming - Prepare for programming 3742 * @acrtc: The amdgpu CRTC to prepare 3743 * @acrtc_state: The new CRTC state 3744 * @pflip_update: Whether a page flip is being programmed 3745 * @cursor_update: Whether a cursor update is being programmed 3746 * 3747 * Grab a reference on the vblank counter if a page flip or cursor update is to 3748 * be programmed. Do this before programming so the HW is not in any 3749 * idle-optimized state (such as PSR). 3750 */ 3751 static void dm_arm_vblank_event_pre_programming(struct amdgpu_crtc *acrtc, 3752 struct dm_crtc_state *acrtc_state, 3753 bool pflip_update, 3754 bool cursor_update) 3755 { 3756 assert_spin_locked(&acrtc->base.dev->event_lock); 3757 3758 if (!acrtc->base.state->event || acrtc_state->active_planes == 0) 3759 return; 3760 3761 if (pflip_update || cursor_update) 3762 drm_crtc_vblank_get(&acrtc->base); 3763 } 3764 3765 static void amdgpu_dm_commit_planes(struct drm_atomic_commit *state, 3766 struct drm_device *dev, 3767 struct amdgpu_display_manager *dm, 3768 struct drm_crtc *pcrtc, 3769 bool wait_for_vblank) 3770 { 3771 u32 i; 3772 u64 timestamp_ns = ktime_get_ns(); 3773 struct drm_plane *plane; 3774 struct drm_plane_state *old_plane_state, *new_plane_state; 3775 struct amdgpu_crtc *acrtc_attach = to_amdgpu_crtc(pcrtc); 3776 struct drm_crtc_state *new_pcrtc_state = 3777 drm_atomic_get_new_crtc_state(state, pcrtc); 3778 struct dm_crtc_state *acrtc_state = to_dm_crtc_state(new_pcrtc_state); 3779 struct dm_crtc_state *dm_old_crtc_state = 3780 to_dm_crtc_state(drm_atomic_get_old_crtc_state(state, pcrtc)); 3781 int planes_count = 0, vpos, hpos; 3782 unsigned long flags; 3783 u32 target_vblank, last_flip_vblank; 3784 bool vrr_active = amdgpu_dm_crtc_vrr_active(acrtc_state); 3785 bool cursor_update = false; 3786 bool pflip_present = false; 3787 bool immediate_flip = false; 3788 bool flip_latched_during_prog = false; 3789 bool dirty_rects_changed = false; 3790 bool updated_planes_and_streams = false; 3791 struct { 3792 struct dc_surface_update surface_updates[MAX_SURFACES]; 3793 struct dc_plane_info plane_infos[MAX_SURFACES]; 3794 struct dc_scaling_info scaling_infos[MAX_SURFACES]; 3795 struct dc_flip_addrs flip_addrs[MAX_SURFACES]; 3796 struct dc_stream_update stream_update; 3797 } *bundle; 3798 3799 bundle = kzalloc_obj(*bundle); 3800 3801 if (!bundle) { 3802 drm_err(dev, "Failed to allocate update bundle\n"); 3803 goto cleanup; 3804 } 3805 3806 /* 3807 * Disable the cursor first if we're disabling all the planes. 3808 * It'll remain on the screen after the planes are re-enabled 3809 * if we don't. 3810 * 3811 * If the cursor is transitioning from native to overlay mode, the 3812 * native cursor needs to be disabled first. 3813 */ 3814 if (acrtc_state->cursor_mode == DM_CURSOR_OVERLAY_MODE && 3815 dm_old_crtc_state->cursor_mode == DM_CURSOR_NATIVE_MODE) { 3816 struct dc_cursor_position cursor_position = {0}; 3817 3818 if (!dc_stream_set_cursor_position(acrtc_state->stream, 3819 &cursor_position)) 3820 drm_err(dev, "DC failed to disable native cursor\n"); 3821 3822 bundle->stream_update.cursor_position = 3823 &acrtc_state->stream->cursor_position; 3824 } 3825 3826 if (acrtc_state->active_planes == 0 && 3827 dm_old_crtc_state->cursor_mode == DM_CURSOR_NATIVE_MODE) 3828 amdgpu_dm_commit_cursors(state); 3829 3830 /* update planes when needed */ 3831 for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, i) { 3832 struct drm_crtc *crtc = new_plane_state->crtc; 3833 struct drm_crtc_state *new_crtc_state; 3834 struct drm_framebuffer *fb = new_plane_state->fb; 3835 struct amdgpu_framebuffer *afb = (struct amdgpu_framebuffer *)fb; 3836 bool plane_needs_flip; 3837 struct dc_plane_state *dc_plane; 3838 struct dm_plane_state *dm_new_plane_state = to_dm_plane_state(new_plane_state); 3839 3840 /* Cursor plane is handled after stream updates */ 3841 if (plane->type == DRM_PLANE_TYPE_CURSOR && 3842 acrtc_state->cursor_mode == DM_CURSOR_NATIVE_MODE) { 3843 if ((fb && crtc == pcrtc) || 3844 (old_plane_state->fb && old_plane_state->crtc == pcrtc)) { 3845 cursor_update = true; 3846 if (amdgpu_ip_version(dm->adev, DCE_HWIP, 0) != 0) 3847 amdgpu_dm_update_cursor(plane, old_plane_state, &bundle->stream_update); 3848 } 3849 3850 continue; 3851 } 3852 3853 if (!fb || !crtc || pcrtc != crtc) 3854 continue; 3855 3856 new_crtc_state = drm_atomic_get_new_crtc_state(state, crtc); 3857 if (!new_crtc_state->active) 3858 continue; 3859 3860 dc_plane = dm_new_plane_state->dc_state; 3861 if (!dc_plane) 3862 continue; 3863 3864 bundle->surface_updates[planes_count].surface = dc_plane; 3865 if (new_pcrtc_state->color_mgmt_changed) { 3866 bundle->surface_updates[planes_count].gamma = &dc_plane->gamma_correction; 3867 bundle->surface_updates[planes_count].in_transfer_func = &dc_plane->in_transfer_func; 3868 bundle->surface_updates[planes_count].gamut_remap_matrix = &dc_plane->gamut_remap_matrix; 3869 bundle->surface_updates[planes_count].hdr_mult = dc_plane->hdr_mult; 3870 bundle->surface_updates[planes_count].cm = &dc_plane->cm; 3871 } 3872 3873 amdgpu_dm_plane_fill_dc_scaling_info(dm->adev, new_plane_state, 3874 &bundle->scaling_infos[planes_count]); 3875 3876 bundle->surface_updates[planes_count].scaling_info = 3877 &bundle->scaling_infos[planes_count]; 3878 3879 plane_needs_flip = old_plane_state->fb && new_plane_state->fb; 3880 3881 pflip_present = pflip_present || plane_needs_flip; 3882 3883 if (!plane_needs_flip) { 3884 planes_count += 1; 3885 continue; 3886 } 3887 3888 fill_dc_plane_info_and_addr( 3889 dm->adev, new_plane_state, 3890 &bundle->plane_infos[planes_count], 3891 &bundle->flip_addrs[planes_count].address, 3892 afb->tmz_surface); 3893 3894 drm_dbg_state(state->dev, "plane: id=%d dcc_en=%d\n", 3895 new_plane_state->plane->index, 3896 bundle->plane_infos[planes_count].dcc.enable); 3897 3898 bundle->surface_updates[planes_count].plane_info = 3899 &bundle->plane_infos[planes_count]; 3900 3901 if (acrtc_state->stream->link->psr_settings.psr_feature_enabled || 3902 acrtc_state->stream->link->replay_settings.replay_feature_enabled) { 3903 fill_dc_dirty_rects(plane, old_plane_state, 3904 new_plane_state, new_crtc_state, 3905 &bundle->flip_addrs[planes_count], 3906 acrtc_state->stream->link->psr_settings.psr_version == 3907 DC_PSR_VERSION_SU_1, 3908 &dirty_rects_changed); 3909 3910 /* 3911 * If the dirty regions changed, PSR-SU need to be disabled temporarily 3912 * and enabled it again after dirty regions are stable to avoid video glitch. 3913 * PSR-SU will be enabled in 3914 * amdgpu_dm_crtc_vblank_control_worker() if user 3915 * pause the video during the PSR-SU was disabled. 3916 */ 3917 if (acrtc_state->stream->link->psr_settings.psr_version >= DC_PSR_VERSION_SU_1 && 3918 acrtc_attach->dm_irq_params.allow_sr_entry && 3919 dirty_rects_changed) { 3920 mutex_lock(&dm->dc_lock); 3921 acrtc_state->stream->link->psr_settings.psr_dirty_rects_change_timestamp_ns = 3922 timestamp_ns; 3923 dc_exit_ips_for_hw_access(dm->dc); 3924 amdgpu_dm_psr_set_event(dm, acrtc_state->stream, true, 3925 psr_event_hw_programming, true); 3926 mutex_unlock(&dm->dc_lock); 3927 } 3928 } 3929 3930 /* 3931 * Only allow immediate flips for fast updates that don't 3932 * change memory domain, FB pitch, DCC state, rotation or 3933 * mirroring. 3934 * 3935 * dm_crtc_helper_atomic_check() only accepts async flips with 3936 * fast updates. 3937 */ 3938 if (crtc->state->async_flip && 3939 (acrtc_state->update_type != UPDATE_TYPE_FAST || 3940 get_mem_type(old_plane_state->fb) != get_mem_type(fb))) 3941 drm_warn_once(state->dev, 3942 "[PLANE:%d:%s] async flip with non-fast update\n", 3943 plane->base.id, plane->name); 3944 3945 bundle->flip_addrs[planes_count].flip_immediate = 3946 crtc->state->async_flip && 3947 acrtc_state->update_type == UPDATE_TYPE_FAST && 3948 get_mem_type(old_plane_state->fb) == get_mem_type(fb); 3949 3950 immediate_flip |= bundle->flip_addrs[planes_count].flip_immediate; 3951 3952 timestamp_ns = ktime_get_ns(); 3953 bundle->flip_addrs[planes_count].flip_timestamp_in_us = div_u64(timestamp_ns, 1000); 3954 bundle->surface_updates[planes_count].flip_addr = &bundle->flip_addrs[planes_count]; 3955 bundle->surface_updates[planes_count].surface = dc_plane; 3956 3957 if (!bundle->surface_updates[planes_count].surface) { 3958 drm_err(dev, "No surface for CRTC: id=%d\n", 3959 acrtc_attach->crtc_id); 3960 continue; 3961 } 3962 3963 if (plane == pcrtc->primary) 3964 amdgpu_dm_update_freesync_state_on_stream( 3965 dm, 3966 acrtc_state, 3967 acrtc_state->stream, 3968 dc_plane, 3969 bundle->flip_addrs[planes_count].flip_timestamp_in_us); 3970 3971 drm_dbg_state(state->dev, "%s Flipping to hi: 0x%x, low: 0x%x\n", 3972 __func__, 3973 bundle->flip_addrs[planes_count].address.grph.addr.high_part, 3974 bundle->flip_addrs[planes_count].address.grph.addr.low_part); 3975 3976 planes_count += 1; 3977 3978 } 3979 3980 if (pflip_present) { 3981 if (!vrr_active) { 3982 /* Use old throttling in non-vrr fixed refresh rate mode 3983 * to keep flip scheduling based on target vblank counts 3984 * working in a backwards compatible way, e.g., for 3985 * clients using the GLX_OML_sync_control extension or 3986 * DRI3/Present extension with defined target_msc. 3987 */ 3988 last_flip_vblank = amdgpu_get_vblank_counter_kms(pcrtc); 3989 } else { 3990 /* For variable refresh rate mode only: 3991 * Get vblank of last completed flip to avoid > 1 vrr 3992 * flips per video frame by use of throttling, but allow 3993 * flip programming anywhere in the possibly large 3994 * variable vrr vblank interval for fine-grained flip 3995 * timing control and more opportunity to avoid stutter 3996 * on late submission of flips. 3997 */ 3998 spin_lock_irqsave(&pcrtc->dev->event_lock, flags); 3999 last_flip_vblank = acrtc_attach->dm_irq_params.last_flip_vblank; 4000 spin_unlock_irqrestore(&pcrtc->dev->event_lock, flags); 4001 } 4002 4003 target_vblank = last_flip_vblank + wait_for_vblank; 4004 4005 /* 4006 * Wait until we're out of the vertical blank period before the one 4007 * targeted by the flip 4008 */ 4009 while ((acrtc_attach->enabled && 4010 (amdgpu_display_get_crtc_scanoutpos(dm->ddev, acrtc_attach->crtc_id, 4011 0, &vpos, &hpos, NULL, 4012 NULL, &pcrtc->hwmode) 4013 & (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_IN_VBLANK)) == 4014 (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_IN_VBLANK) && 4015 (int)(target_vblank - 4016 amdgpu_get_vblank_counter_kms(pcrtc)) > 0)) { 4017 usleep_range(1000, 1100); 4018 } 4019 4020 if (acrtc_state->stream) { 4021 if (acrtc_state->freesync_vrr_info_changed) 4022 bundle->stream_update.vrr_infopacket = 4023 &acrtc_state->stream->vrr_infopacket; 4024 } 4025 } 4026 4027 scoped_guard(spinlock_irqsave, &pcrtc->dev->event_lock) { 4028 dm_arm_vblank_event_pre_programming(acrtc_attach, acrtc_state, 4029 pflip_present, 4030 cursor_update); 4031 /* 4032 * DCE depends on a combination of GRPH_FLIP, VLINE0, and 4033 * VUPDATE for event delivery. Only GRPH_FLIP handler can send 4034 * pflip events, and it only fires if HW latched to the flip. 4035 * Maintain legacy behavior by arming event before programming. 4036 */ 4037 if (amdgpu_ip_version(dm->adev, DCE_HWIP, 0) == 0) { 4038 dm_arm_vblank_event(acrtc_attach, acrtc_state, 4039 pflip_present, cursor_update); 4040 } 4041 } 4042 4043 /* Update the planes if changed or disable if we don't have any. */ 4044 if ((planes_count || acrtc_state->active_planes == 0) && 4045 acrtc_state->stream) { 4046 /* 4047 * If PSR or idle optimizations are enabled then flush out 4048 * any pending work before hardware programming. 4049 */ 4050 if (dm->vblank_control_workqueue) 4051 flush_workqueue(dm->vblank_control_workqueue); 4052 4053 bundle->stream_update.stream = acrtc_state->stream; 4054 if (new_pcrtc_state->mode_changed) { 4055 bundle->stream_update.src = acrtc_state->stream->src; 4056 bundle->stream_update.dst = acrtc_state->stream->dst; 4057 } 4058 4059 if (new_pcrtc_state->color_mgmt_changed) { 4060 /* 4061 * TODO: This isn't fully correct since we've actually 4062 * already modified the stream in place. 4063 */ 4064 bundle->stream_update.gamut_remap = 4065 &acrtc_state->stream->gamut_remap_matrix; 4066 bundle->stream_update.output_csc_transform = 4067 &acrtc_state->stream->csc_color_matrix; 4068 bundle->stream_update.out_transfer_func = 4069 &acrtc_state->stream->out_transfer_func; 4070 bundle->stream_update.lut3d_func = 4071 (struct dc_3dlut *) acrtc_state->stream->lut3d_func; 4072 bundle->stream_update.func_shaper = 4073 (struct dc_transfer_func *) acrtc_state->stream->func_shaper; 4074 } 4075 4076 acrtc_state->stream->abm_level = acrtc_state->abm_level; 4077 if (acrtc_state->abm_level != dm_old_crtc_state->abm_level) 4078 bundle->stream_update.abm_level = &acrtc_state->abm_level; 4079 4080 /* 4081 * If FreeSync state on the stream has changed then we need to 4082 * re-adjust the min/max bounds now that DC doesn't handle this 4083 * as part of commit. 4084 */ 4085 if (amdgpu_dm_is_dc_timing_adjust_needed(dm_old_crtc_state, acrtc_state)) { 4086 spin_lock_irqsave(&pcrtc->dev->event_lock, flags); 4087 dc_stream_adjust_vmin_vmax( 4088 dm->dc, acrtc_state->stream, 4089 &acrtc_attach->dm_irq_params.vrr_params.adjust); 4090 spin_unlock_irqrestore(&pcrtc->dev->event_lock, flags); 4091 } 4092 mutex_lock(&dm->dc_lock); 4093 update_planes_and_stream_adapter(dm->dc, 4094 acrtc_state->update_type, 4095 planes_count, 4096 acrtc_state->stream, 4097 &bundle->stream_update, 4098 bundle->surface_updates); 4099 updated_planes_and_streams = true; 4100 4101 /** 4102 * Enable or disable the interrupts on the backend. 4103 * 4104 * Most pipes are put into power gating when unused. 4105 * 4106 * When power gating is enabled on a pipe we lose the 4107 * interrupt enablement state when power gating is disabled. 4108 * 4109 * So we need to update the IRQ control state in hardware 4110 * whenever the pipe turns on (since it could be previously 4111 * power gated) or off (since some pipes can't be power gated 4112 * on some ASICs). 4113 */ 4114 if (dm_old_crtc_state->active_planes != acrtc_state->active_planes) 4115 dm_update_pflip_irq_state(drm_to_adev(dev), 4116 acrtc_attach); 4117 amdgpu_dm_enable_self_refresh(dm, acrtc_attach, acrtc_state, 4118 timestamp_ns); 4119 mutex_unlock(&dm->dc_lock); 4120 } 4121 4122 /* 4123 * Update cursor state *after* programming all the planes. 4124 * This avoids redundant programming in the case where we're going 4125 * to be disabling a single plane - those pipes are being disabled. 4126 */ 4127 if (acrtc_state->active_planes && 4128 (!updated_planes_and_streams || amdgpu_ip_version(dm->adev, DCE_HWIP, 0) == 0) && 4129 acrtc_state->cursor_mode == DM_CURSOR_NATIVE_MODE) 4130 amdgpu_dm_commit_cursors(state); 4131 4132 /* 4133 * DCN specific vblank handling 4134 * ============================ 4135 * 4136 * With the event_lock held, arm the vblank event, and determine whether 4137 * deliver it immediately, or in VUPDATE_NO_LOCK IRQ (i.e. HW latch 4138 * point) handler. Do this *after* programming so that the IRQ handler 4139 * will not deliver the event before HW laches onto the programmed 4140 * values: 4141 * 4142 * Commit thread IRQ handler HW 4143 * ----------------------------------------------------------------- 4144 * arm_vblank_event() 4145 * vupdate() 4146 * vupdate_handler() 4147 * cook_timestamp() 4148 * # prev flip already latched, 4149 * # so flip_latched == true. 4150 * if event_armed && flip_latched: 4151 * send_vblank_event() 4152 * # sent before latch, **BAD!** 4153 * hw_program() 4154 * vupdate() 4155 * **latch** 4156 * 4157 * There's a consequence of arming after: it's possible for HW to latch 4158 * between start of HW programming and acrtc->event/pflip_status arming. 4159 * When this happens, the IRQ handler will send the event on the next 4160 * immediate latch point, even though HW has already latched. This is 4161 * handled by optimistically checking for HW latch after programming, 4162 * and if latched, send the event immediately: 4163 * 4164 * Commit thread IRQ handler HW 4165 * ----------------------------------------------------------------- 4166 * hw_program() 4167 * vupdate() 4168 * **latch** 4169 * vupdate_handler() 4170 * cook_timestamp() 4171 * # event_armed == false 4172 * # **no event sent!** 4173 * arm_vblank_event() 4174 * if flip_latched: 4175 * **send_vblank_event()** 4176 * disarm_vblank_event() 4177 * 4178 * The IRQ handler is expected to cook the timestamp, but we need to 4179 * cook the timestamp before optimistic sending as well. That's because 4180 * the following sequence is possible: 4181 * 4182 * Commit thread IRQ handler HW 4183 * ----------------------------------------------------------------- 4184 * hw_program() 4185 * arm_vblank_event() 4186 * vupdate() 4187 * **latch** 4188 * if flip_latched: 4189 * # Need cook before send! 4190 * **cook_timestamp()** 4191 * send_vblank_event() 4192 * disarm_vblank_event() 4193 * vupdate_handler() 4194 * cook_timestamp() 4195 * # event_armed == false 4196 * # no event sent! 4197 * 4198 * Cooking twice is OK, since DRM scanout accurate timestamps report A) 4199 * the previous vactive start if currently in vactive, or B) the next 4200 * vactive start if currently in vblank (see &get_vblank_counter). 'A)' 4201 * is what we want for the optimistic send, and for 'B)', we'll cook a 4202 * timestamp no later than the next IRQ handler run. 4203 * 4204 * The more correct fix is to wrap programming and arming with the 4205 * event_lock and thus serializing it with the IRQ handler. However, 4206 * there are various sleep-waits within 4207 * update_planes_and_stream_adapter() that makes spin locking illegal. 4208 * And on full updates, it can take 1-2 frame-times to return (see 4209 * commit_planes_for_stream). 4210 * 4211 * On DCE, GRPH_PFLIP IRQ is used and takes care of this. 4212 */ 4213 if (amdgpu_ip_version(dm->adev, DCE_HWIP, 0) != 0) { 4214 spin_lock_irqsave(&pcrtc->dev->event_lock, flags); 4215 4216 if (updated_planes_and_streams) { 4217 flip_latched_during_prog = 4218 !dc_get_flip_pending_on_otg(dm->dc, acrtc_attach->otg_inst); 4219 } 4220 4221 dm_arm_vblank_event(acrtc_attach, acrtc_state, 4222 pflip_present, cursor_update); 4223 4224 /* 4225 * Deliver the event immediately on immediate flip, or on a 4226 * update that has already latched. 4227 */ 4228 if ((immediate_flip || flip_latched_during_prog) && 4229 acrtc_attach->pflip_status == AMDGPU_FLIP_SUBMITTED && 4230 acrtc_attach->event) { 4231 drm_crtc_accurate_vblank_count(&acrtc_attach->base); 4232 drm_crtc_send_vblank_event(&acrtc_attach->base, 4233 acrtc_attach->event); 4234 acrtc_attach->event = NULL; 4235 drm_crtc_vblank_put(&acrtc_attach->base); 4236 acrtc_attach->pflip_status = AMDGPU_FLIP_NONE; 4237 } 4238 spin_unlock_irqrestore(&pcrtc->dev->event_lock, flags); 4239 } 4240 4241 cleanup: 4242 kfree(bundle); 4243 } 4244 4245 /* 4246 * amdgpu_dm_crtc_copy_transient_flags - copy mirrored flags from DRM to DC 4247 * @crtc_state: the DRM CRTC state 4248 * @stream_state: the DC stream state. 4249 * 4250 * Copy the mirrored transient state flags from DRM, to DC. It is used to bring 4251 * a dc_stream_state's flags in sync with a drm_crtc_state's flags. 4252 */ 4253 static void amdgpu_dm_crtc_copy_transient_flags(struct drm_crtc_state *crtc_state, 4254 struct dc_stream_state *stream_state) 4255 { 4256 stream_state->mode_changed = drm_atomic_crtc_needs_modeset(crtc_state); 4257 } 4258 4259 /** 4260 * amdgpu_dm_crtc_complete_writeback - finish a pending writeback job 4261 * @acrtc: the CRTC whose pending writeback should be completed 4262 * 4263 * Clears the pending state, signals the writeback out fence and releases the 4264 * vblank reference taken in dm_set_writeback() while the writeback was armed. 4265 * The pending flag is tested and cleared under the writeback job lock, so this 4266 * is safe to call concurrently from the completion vblank IRQ 4267 * (dm_crtc_high_irq()) and from the writeback teardown path 4268 * (dm_clear_writeback()); only the caller that observes the pending job 4269 * performs the completion. 4270 * 4271 * Return: true if a pending writeback job was completed by this call. 4272 */ 4273 bool amdgpu_dm_crtc_complete_writeback(struct amdgpu_crtc *acrtc) 4274 { 4275 unsigned long flags; 4276 bool pending; 4277 4278 if (!acrtc->wb_conn) 4279 return false; 4280 4281 spin_lock_irqsave(&acrtc->wb_conn->job_lock, flags); 4282 pending = acrtc->wb_pending; 4283 acrtc->wb_pending = false; 4284 acrtc->wb_frame_done = false; 4285 spin_unlock_irqrestore(&acrtc->wb_conn->job_lock, flags); 4286 4287 if (!pending) 4288 return false; 4289 4290 drm_writeback_signal_completion(acrtc->wb_conn, 0); 4291 drm_crtc_vblank_put(&acrtc->base); 4292 4293 return true; 4294 } 4295 EXPORT_IF_KUNIT(amdgpu_dm_crtc_complete_writeback); 4296 4297 static void dm_clear_writeback(struct amdgpu_display_manager *dm, 4298 struct amdgpu_crtc *acrtc, 4299 struct dm_crtc_state *crtc_state) 4300 { 4301 dc_stream_remove_writeback(dm->dc, crtc_state->stream, 0); 4302 4303 /* 4304 * If the writeback is still pending when it is torn down (its 4305 * completion vblank IRQ never fired), signal the out fence so a 4306 * waiting client does not stall and release the vblank reference 4307 * taken in dm_set_writeback(). 4308 */ 4309 amdgpu_dm_crtc_complete_writeback(acrtc); 4310 } 4311 4312 /** 4313 * amdgpu_dm_mod_power_update_streams - update mod_power stream state on modeset 4314 * @state: the drm atomic state 4315 * @dm: the display manager to update mod_power on 4316 * 4317 * Notify mod_power of stream changes on modeset events, and disable PSR/Replay 4318 * in preparation for hardware programming. See also 4319 * amdgpu_dm_mod_power_setup_streams() for post-modeset mod_power setup. 4320 */ 4321 static void amdgpu_dm_mod_power_update_streams(struct drm_atomic_commit *state, 4322 struct amdgpu_display_manager *dm) 4323 { 4324 struct dm_crtc_state *dm_old_crtc_state, *dm_new_crtc_state; 4325 struct drm_crtc_state *old_crtc_state, *new_crtc_state; 4326 struct amdgpu_dm_connector *aconnector; 4327 struct drm_crtc *crtc; 4328 int i = 0; 4329 4330 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { 4331 dm_old_crtc_state = to_dm_crtc_state(old_crtc_state); 4332 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); 4333 4334 if (!drm_atomic_crtc_needs_modeset(new_crtc_state)) 4335 continue; 4336 4337 /* 4338 * Update mod_power on modeset event in preparation for hw 4339 * programming. Always use the old stream, since it would have 4340 * been previously added to mod_power. If old stream is null (on 4341 * crtc enable, for example), mod_power will no-op, which is the 4342 * desried behavior. 4343 */ 4344 if (old_crtc_state->active) { 4345 scoped_guard(mutex, &dm->dc_lock) { 4346 dc_exit_ips_for_hw_access(dm->dc); 4347 amdgpu_dm_psr_set_event(dm, dm_old_crtc_state->stream, true, 4348 psr_event_hw_programming, true); 4349 amdgpu_dm_replay_set_event(dm, dm_old_crtc_state->stream, true, 4350 replay_event_hw_programming, true); 4351 amdgpu_dm_replay_set_event(dm, dm_old_crtc_state->stream, false, 4352 replay_event_general_ui, false); 4353 } 4354 } 4355 4356 if (new_crtc_state->active) { 4357 aconnector = (struct amdgpu_dm_connector *) 4358 dm_new_crtc_state->stream->dm_stream_context; 4359 if (old_crtc_state->active) { 4360 mod_power_replace_stream(dm->power_module, 4361 dm_old_crtc_state->stream, 4362 dm_new_crtc_state->stream, 4363 &aconnector->psr_caps); 4364 } else { 4365 mod_power_add_stream(dm->power_module, 4366 dm_new_crtc_state->stream, 4367 &aconnector->psr_caps); 4368 } 4369 } else if (old_crtc_state->active) { 4370 mod_power_remove_stream(dm->power_module, 4371 dm_old_crtc_state->stream); 4372 } 4373 } 4374 } 4375 4376 /** 4377 * amdgpu_dm_mod_power_setup_streams - setup mod_power stream state post modeset 4378 * @state: the drm atomic state 4379 * @dm: the display manager to update mod_power on 4380 * 4381 * Notify mod_power of mode_change. This needs to be done after dc_stream 4382 * updates have been committed, and VRR parameters have been updated. 4383 */ 4384 static void amdgpu_dm_mod_power_setup_streams(struct drm_atomic_commit *state, 4385 struct amdgpu_display_manager *dm) 4386 { 4387 struct dm_crtc_state *dm_new_crtc_state; 4388 struct drm_crtc_state *new_crtc_state; 4389 struct amdgpu_crtc *acrtc; 4390 struct drm_crtc *crtc; 4391 int i = 0; 4392 4393 for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) { 4394 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); 4395 acrtc = to_amdgpu_crtc(crtc); 4396 4397 if (!drm_atomic_crtc_needs_modeset(new_crtc_state)) 4398 continue; 4399 4400 if (new_crtc_state->active) { 4401 amdgpu_dm_link_setup_replay(dm_new_crtc_state->stream, 4402 &acrtc->dm_irq_params.vrr_params); 4403 mod_power_notify_mode_change(dm->power_module, 4404 dm_new_crtc_state->stream, 4405 false); 4406 4407 /* 4408 * Block PSR / Replay on the new stream until display settles post-modeset. 4409 * These events will be cleared by amdgpu_dm_enable_self_refresh() once 4410 * allow_sr_entry becomes true. 4411 */ 4412 amdgpu_dm_psr_set_event(dm, dm_new_crtc_state->stream, true, 4413 psr_event_hw_programming, true); 4414 4415 amdgpu_dm_replay_set_event(dm, dm_new_crtc_state->stream, true, 4416 replay_event_hw_programming | replay_event_general_ui, 4417 true); 4418 } 4419 } 4420 4421 } 4422 4423 static void amdgpu_dm_commit_streams(struct drm_atomic_commit *state, 4424 struct dc_state *dc_state) 4425 { 4426 struct drm_device *dev = state->dev; 4427 struct amdgpu_device *adev = drm_to_adev(dev); 4428 struct amdgpu_display_manager *dm = &adev->dm; 4429 struct drm_crtc *crtc; 4430 struct drm_crtc_state *old_crtc_state, *new_crtc_state; 4431 struct dm_crtc_state *dm_old_crtc_state, *dm_new_crtc_state; 4432 struct drm_connector_state *old_con_state; 4433 struct drm_connector *connector; 4434 bool mode_set_reset_required = false; 4435 u32 i; 4436 struct dc_commit_streams_params params = {dc_state->streams, dc_state->stream_count}; 4437 bool set_backlight_level = false; 4438 4439 /* Disable writeback */ 4440 for_each_old_connector_in_state(state, connector, old_con_state, i) { 4441 struct dm_connector_state *dm_old_con_state; 4442 struct amdgpu_crtc *acrtc; 4443 4444 if (connector->connector_type != DRM_MODE_CONNECTOR_WRITEBACK) 4445 continue; 4446 4447 old_crtc_state = NULL; 4448 4449 dm_old_con_state = to_dm_connector_state(old_con_state); 4450 if (!dm_old_con_state->base.crtc) 4451 continue; 4452 4453 acrtc = to_amdgpu_crtc(dm_old_con_state->base.crtc); 4454 if (acrtc) 4455 old_crtc_state = drm_atomic_get_old_crtc_state(state, &acrtc->base); 4456 4457 if (!acrtc || !acrtc->wb_enabled) 4458 continue; 4459 4460 dm_old_crtc_state = to_dm_crtc_state(old_crtc_state); 4461 4462 dm_clear_writeback(dm, acrtc, dm_old_crtc_state); 4463 acrtc->wb_enabled = false; 4464 } 4465 4466 amdgpu_dm_mod_power_update_streams(state, dm); 4467 4468 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, 4469 new_crtc_state, i) { 4470 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc); 4471 4472 dm_old_crtc_state = to_dm_crtc_state(old_crtc_state); 4473 4474 if (old_crtc_state->active && 4475 (!new_crtc_state->active || 4476 drm_atomic_crtc_needs_modeset(new_crtc_state))) { 4477 manage_dm_interrupts(adev, acrtc, NULL); 4478 dc_stream_release(dm_old_crtc_state->stream); 4479 } 4480 } 4481 4482 drm_atomic_helper_calc_timestamping_constants(state); 4483 4484 /* update changed items */ 4485 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { 4486 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc); 4487 4488 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); 4489 dm_old_crtc_state = to_dm_crtc_state(old_crtc_state); 4490 4491 drm_dbg_state(state->dev, 4492 "amdgpu_crtc id:%d crtc_state_flags: enable:%d, active:%d, planes_changed:%d, mode_changed:%d,active_changed:%d,connectors_changed:%d\n", 4493 acrtc->crtc_id, 4494 new_crtc_state->enable, 4495 new_crtc_state->active, 4496 new_crtc_state->planes_changed, 4497 new_crtc_state->mode_changed, 4498 new_crtc_state->active_changed, 4499 new_crtc_state->connectors_changed); 4500 4501 /* Disable cursor if disabling crtc */ 4502 if (old_crtc_state->active && !new_crtc_state->active) { 4503 struct dc_cursor_position position; 4504 4505 memset(&position, 0, sizeof(position)); 4506 mutex_lock(&dm->dc_lock); 4507 dc_exit_ips_for_hw_access(dm->dc); 4508 dc_stream_program_cursor_position(dm_old_crtc_state->stream, &position); 4509 mutex_unlock(&dm->dc_lock); 4510 } 4511 4512 /* Copy all transient state flags into dc state */ 4513 if (dm_new_crtc_state->stream) { 4514 amdgpu_dm_crtc_copy_transient_flags(&dm_new_crtc_state->base, 4515 dm_new_crtc_state->stream); 4516 } 4517 4518 /* handles headless hotplug case, updating new_state and 4519 * aconnector as needed 4520 */ 4521 4522 if (amdgpu_dm_crtc_modeset_required(new_crtc_state, dm_new_crtc_state->stream, dm_old_crtc_state->stream)) { 4523 4524 drm_dbg_atomic(dev, 4525 "Atomic commit: SET crtc id %d: [%p]\n", 4526 acrtc->crtc_id, acrtc); 4527 4528 if (!dm_new_crtc_state->stream) { 4529 /* 4530 * this could happen because of issues with 4531 * userspace notifications delivery. 4532 * In this case userspace tries to set mode on 4533 * display which is disconnected in fact. 4534 * dc_sink is NULL in this case on aconnector. 4535 * We expect reset mode will come soon. 4536 * 4537 * This can also happen when unplug is done 4538 * during resume sequence ended 4539 * 4540 * In this case, we want to pretend we still 4541 * have a sink to keep the pipe running so that 4542 * hw state is consistent with the sw state 4543 */ 4544 drm_dbg_atomic(dev, 4545 "Failed to create new stream for crtc %d\n", 4546 acrtc->base.base.id); 4547 continue; 4548 } 4549 4550 if (dm_old_crtc_state->stream) 4551 remove_stream(adev, acrtc, dm_old_crtc_state->stream); 4552 4553 pm_runtime_get_noresume(dev->dev); 4554 4555 acrtc->enabled = true; 4556 acrtc->hw_mode = new_crtc_state->mode; 4557 crtc->hwmode = new_crtc_state->mode; 4558 mode_set_reset_required = true; 4559 set_backlight_level = true; 4560 } else if (modereset_required(new_crtc_state)) { 4561 drm_dbg_atomic(dev, 4562 "Atomic commit: RESET. crtc id %d:[%p]\n", 4563 acrtc->crtc_id, acrtc); 4564 /* i.e. reset mode */ 4565 if (dm_old_crtc_state->stream) 4566 remove_stream(adev, acrtc, dm_old_crtc_state->stream); 4567 4568 mode_set_reset_required = true; 4569 } 4570 } /* for_each_crtc_in_state() */ 4571 4572 /* if there mode set or reset, flush vblank work queue */ 4573 if (mode_set_reset_required) { 4574 if (dm->vblank_control_workqueue) 4575 flush_workqueue(dm->vblank_control_workqueue); 4576 } 4577 4578 dm_enable_per_frame_crtc_master_sync(dc_state); 4579 mutex_lock(&dm->dc_lock); 4580 dc_exit_ips_for_hw_access(dm->dc); 4581 WARN_ON(!dc_commit_streams(dm->dc, ¶ms)); 4582 4583 bool frl_stream_found = false; 4584 4585 for (i = 0; i < params.stream_count; i++) { 4586 struct dc_stream_state *stream = params.streams[i]; 4587 4588 if (stream->signal == SIGNAL_TYPE_HDMI_FRL) { 4589 frl_stream_found = true; 4590 break; 4591 } 4592 } 4593 if (frl_stream_found) { 4594 if (queue_delayed_work(dm->hdmi_frl_status_polling_wq, 4595 &dm->hdmi_frl_status_polling_work, 4596 msecs_to_jiffies(dm->hdmi_frl_status_polling_delay_ms))) 4597 drm_dbg_kms(dev, "200ms frl status polling starts ...\n"); 4598 } else { 4599 if (cancel_delayed_work_sync(&dm->hdmi_frl_status_polling_work)) 4600 drm_dbg_kms(dev, "200ms frl status polling stops ...\n"); 4601 } 4602 /* Allow idle optimization when vblank count is 0 for display off */ 4603 if ((dm->active_vblank_irq_count == 0) && amdgpu_dm_is_headless(dm->adev)) 4604 dc_allow_idle_optimizations(dm->dc, true); 4605 mutex_unlock(&dm->dc_lock); 4606 4607 for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) { 4608 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc); 4609 4610 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); 4611 4612 if (dm_new_crtc_state->stream != NULL) { 4613 const struct dc_stream_status *status = 4614 dc_stream_get_status(dm_new_crtc_state->stream); 4615 4616 if (!status) 4617 status = dc_state_get_stream_status(dc_state, 4618 dm_new_crtc_state->stream); 4619 if (!status) 4620 drm_err(dev, 4621 "got no status for stream %p on acrtc%p\n", 4622 dm_new_crtc_state->stream, acrtc); 4623 else 4624 acrtc->otg_inst = status->primary_otg_inst; 4625 } 4626 } 4627 4628 /* During boot up and resume the DC layer will reset the panel brightness 4629 * to fix a flicker issue. 4630 * It will cause the dm->actual_brightness is not the current panel brightness 4631 * level. (the dm->brightness is the correct panel level) 4632 * So we set the backlight level with dm->brightness value after set mode 4633 */ 4634 if (set_backlight_level) { 4635 for (i = 0; i < dm->num_of_edps; i++) { 4636 if (dm->backlight_dev[i]) 4637 amdgpu_dm_backlight_set_level(dm, i, dm->brightness[i]); 4638 } 4639 } 4640 } 4641 4642 static void dm_set_writeback(struct amdgpu_display_manager *dm, 4643 struct dm_crtc_state *crtc_state, 4644 struct drm_connector *connector, 4645 struct drm_connector_state *new_con_state) 4646 { 4647 struct drm_writeback_connector *wb_conn = drm_connector_to_writeback(connector); 4648 struct amdgpu_device *adev = dm->adev; 4649 struct amdgpu_crtc *acrtc; 4650 struct dc_writeback_info *wb_info; 4651 struct pipe_ctx *pipe = NULL; 4652 struct amdgpu_framebuffer *afb; 4653 int i = 0; 4654 4655 wb_info = kzalloc_obj(*wb_info); 4656 if (!wb_info) { 4657 drm_err(adev_to_drm(adev), "Failed to allocate wb_info\n"); 4658 return; 4659 } 4660 4661 acrtc = to_amdgpu_crtc(wb_conn->encoder.crtc); 4662 if (!acrtc) { 4663 drm_err(adev_to_drm(adev), "no amdgpu_crtc found\n"); 4664 kfree(wb_info); 4665 return; 4666 } 4667 4668 afb = to_amdgpu_framebuffer(new_con_state->writeback_job->fb); 4669 if (!afb) { 4670 drm_err(adev_to_drm(adev), "No amdgpu_framebuffer found\n"); 4671 kfree(wb_info); 4672 return; 4673 } 4674 4675 for (i = 0; i < MAX_PIPES; i++) { 4676 if (dm->dc->current_state->res_ctx.pipe_ctx[i].stream == crtc_state->stream) { 4677 pipe = &dm->dc->current_state->res_ctx.pipe_ctx[i]; 4678 break; 4679 } 4680 } 4681 4682 /* fill in wb_info */ 4683 wb_info->wb_enabled = true; 4684 4685 wb_info->dwb_pipe_inst = 0; 4686 wb_info->dwb_params.dwbscl_black_color = 0; 4687 wb_info->dwb_params.hdr_mult = 0x1F000; 4688 wb_info->dwb_params.csc_params.gamut_adjust_type = CM_GAMUT_ADJUST_TYPE_BYPASS; 4689 wb_info->dwb_params.csc_params.gamut_coef_format = CM_GAMUT_REMAP_COEF_FORMAT_S2_13; 4690 wb_info->dwb_params.output_depth = DWB_OUTPUT_PIXEL_DEPTH_10BPC; 4691 wb_info->dwb_params.cnv_params.cnv_out_bpc = DWB_CNV_OUT_BPC_10BPC; 4692 4693 /* width & height from crtc */ 4694 wb_info->dwb_params.cnv_params.src_width = acrtc->base.mode.crtc_hdisplay; 4695 wb_info->dwb_params.cnv_params.src_height = acrtc->base.mode.crtc_vdisplay; 4696 wb_info->dwb_params.dest_width = acrtc->base.mode.crtc_hdisplay; 4697 wb_info->dwb_params.dest_height = acrtc->base.mode.crtc_vdisplay; 4698 4699 wb_info->dwb_params.cnv_params.crop_en = false; 4700 wb_info->dwb_params.stereo_params.stereo_enabled = false; 4701 4702 wb_info->dwb_params.cnv_params.out_max_pix_val = 0x3ff; // 10 bits 4703 wb_info->dwb_params.cnv_params.out_min_pix_val = 0; 4704 wb_info->dwb_params.cnv_params.fc_out_format = DWB_OUT_FORMAT_32BPP_ARGB; 4705 wb_info->dwb_params.cnv_params.out_denorm_mode = DWB_OUT_DENORM_BYPASS; 4706 4707 wb_info->dwb_params.out_format = dwb_scaler_mode_bypass444; 4708 4709 wb_info->dwb_params.capture_rate = dwb_capture_rate_0; 4710 4711 wb_info->dwb_params.scaler_taps.h_taps = 1; 4712 wb_info->dwb_params.scaler_taps.v_taps = 1; 4713 wb_info->dwb_params.scaler_taps.h_taps_c = 1; 4714 wb_info->dwb_params.scaler_taps.v_taps_c = 1; 4715 wb_info->dwb_params.subsample_position = DWB_INTERSTITIAL_SUBSAMPLING; 4716 4717 wb_info->mcif_buf_params.luma_pitch = afb->base.pitches[0]; 4718 wb_info->mcif_buf_params.chroma_pitch = afb->base.pitches[1]; 4719 4720 for (i = 0; i < DWB_MCIF_BUF_COUNT; i++) { 4721 wb_info->mcif_buf_params.luma_address[i] = afb->address; 4722 wb_info->mcif_buf_params.chroma_address[i] = 0; 4723 } 4724 4725 wb_info->mcif_buf_params.p_vmid = 1; 4726 if (amdgpu_ip_version(adev, DCE_HWIP, 0) >= IP_VERSION(3, 0, 0)) { 4727 wb_info->mcif_warmup_params.start_address.quad_part = afb->address; 4728 wb_info->mcif_warmup_params.region_size = 4729 wb_info->mcif_buf_params.luma_pitch * wb_info->dwb_params.dest_height; 4730 } 4731 wb_info->mcif_warmup_params.p_vmid = 1; 4732 wb_info->writeback_source_plane = pipe->plane_state; 4733 4734 dc_stream_add_writeback(dm->dc, crtc_state->stream, wb_info); 4735 4736 acrtc->wb_conn = wb_conn; 4737 drm_writeback_queue_job(wb_conn, new_con_state); 4738 4739 /* 4740 * Writeback completion is detected in the CRTC vblank IRQ 4741 * (dm_crtc_high_irq()). Take a vblank reference so the vblank interrupt 4742 * stays enabled while the writeback is pending; otherwise a 4743 * writeback-only commit right after drm_crtc_vblank_on() (e.g. 4744 * re-enabling a CRTC that was disabled) has no other vblank reference, 4745 * the IRQ never fires and the out fence times out. The matching put 4746 * happens once completion is signalled in dm_crtc_high_irq(), or when 4747 * the writeback is torn down in dm_clear_writeback(). 4748 * 4749 * Arm wb_pending only after the reference is held so the completion IRQ 4750 * cannot run its matching vblank_put before this get. 4751 */ 4752 WARN_ON(drm_crtc_vblank_get(&acrtc->base)); 4753 acrtc->wb_frame_done = false; 4754 acrtc->wb_pending = true; 4755 } 4756 4757 static void amdgpu_dm_update_hdcp(struct drm_atomic_commit *state) 4758 { 4759 struct drm_connector_state *old_con_state, *new_con_state; 4760 struct drm_device *dev = state->dev; 4761 struct drm_connector *connector; 4762 struct amdgpu_device *adev = drm_to_adev(dev); 4763 int i; 4764 4765 if (!adev->dm.hdcp_workqueue) 4766 return; 4767 4768 for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) { 4769 struct dm_connector_state *dm_new_con_state = to_dm_connector_state(new_con_state); 4770 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(dm_new_con_state->base.crtc); 4771 struct drm_crtc_state *old_crtc_state, *new_crtc_state; 4772 struct dm_crtc_state *dm_new_crtc_state; 4773 struct amdgpu_dm_connector *aconnector; 4774 4775 if (!connector || connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK) 4776 continue; 4777 4778 aconnector = to_amdgpu_dm_connector(connector); 4779 4780 drm_dbg(dev, "[HDCP_DM] -------------- i : %x ----------\n", i); 4781 4782 drm_dbg(dev, "[HDCP_DM] connector->index: %x connect_status: %x dpms: %x\n", 4783 connector->index, connector->status, connector->dpms); 4784 drm_dbg(dev, "[HDCP_DM] state protection old: %x new: %x\n", 4785 old_con_state->content_protection, new_con_state->content_protection); 4786 4787 if (aconnector->dc_sink) { 4788 if (aconnector->dc_sink->sink_signal != SIGNAL_TYPE_VIRTUAL && 4789 aconnector->dc_sink->sink_signal != SIGNAL_TYPE_NONE) { 4790 drm_dbg(dev, "[HDCP_DM] pipe_ctx dispname=%s\n", 4791 aconnector->dc_sink->edid_caps.display_name); 4792 } 4793 } 4794 4795 new_crtc_state = NULL; 4796 old_crtc_state = NULL; 4797 4798 if (acrtc) { 4799 new_crtc_state = drm_atomic_get_new_crtc_state(state, &acrtc->base); 4800 old_crtc_state = drm_atomic_get_old_crtc_state(state, &acrtc->base); 4801 } 4802 4803 if (old_crtc_state) 4804 drm_dbg(dev, "old crtc en: %x a: %x m: %x a-chg: %x c-chg: %x\n", 4805 old_crtc_state->enable, 4806 old_crtc_state->active, 4807 old_crtc_state->mode_changed, 4808 old_crtc_state->active_changed, 4809 old_crtc_state->connectors_changed); 4810 4811 if (new_crtc_state) 4812 drm_dbg(dev, "NEW crtc en: %x a: %x m: %x a-chg: %x c-chg: %x\n", 4813 new_crtc_state->enable, 4814 new_crtc_state->active, 4815 new_crtc_state->mode_changed, 4816 new_crtc_state->active_changed, 4817 new_crtc_state->connectors_changed); 4818 4819 4820 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); 4821 4822 if (dm_new_crtc_state && dm_new_crtc_state->stream == NULL && 4823 connector->state->content_protection == DRM_MODE_CONTENT_PROTECTION_ENABLED) { 4824 hdcp_reset_display(adev->dm.hdcp_workqueue, aconnector->dc_link->link_index); 4825 new_con_state->content_protection = DRM_MODE_CONTENT_PROTECTION_DESIRED; 4826 dm_new_con_state->update_hdcp = true; 4827 continue; 4828 } 4829 4830 if (is_content_protection_different(new_crtc_state, old_crtc_state, new_con_state, 4831 old_con_state, connector, adev->dm.hdcp_workqueue)) { 4832 /* when display is unplugged from mst hub, connctor will 4833 * be destroyed within dm_dp_mst_connector_destroy. connector 4834 * hdcp perperties, like type, undesired, desired, enabled, 4835 * will be lost. So, save hdcp properties into hdcp_work within 4836 * amdgpu_dm_atomic_commit_tail. if the same display is 4837 * plugged back with same display index, its hdcp properties 4838 * will be retrieved from hdcp_work within dm_dp_mst_get_modes 4839 */ 4840 4841 bool enable_encryption = false; 4842 4843 if (new_con_state->content_protection == DRM_MODE_CONTENT_PROTECTION_DESIRED) 4844 enable_encryption = true; 4845 4846 if (aconnector->dc_link && aconnector->dc_sink && 4847 aconnector->dc_link->type == dc_connection_mst_branch) { 4848 struct hdcp_workqueue *hdcp_work = adev->dm.hdcp_workqueue; 4849 struct hdcp_workqueue *hdcp_w = 4850 &hdcp_work[aconnector->dc_link->link_index]; 4851 4852 hdcp_w->hdcp_content_type[connector->index] = 4853 new_con_state->hdcp_content_type; 4854 hdcp_w->content_protection[connector->index] = 4855 new_con_state->content_protection; 4856 } 4857 4858 if (new_crtc_state && new_crtc_state->mode_changed && 4859 new_con_state->content_protection >= DRM_MODE_CONTENT_PROTECTION_DESIRED) 4860 enable_encryption = true; 4861 4862 drm_info(dev, "[HDCP_DM] hdcp_update_display enable_encryption = %x\n", enable_encryption); 4863 4864 if (aconnector->dc_link) 4865 hdcp_update_display( 4866 adev->dm.hdcp_workqueue, aconnector->dc_link->link_index, aconnector, 4867 new_con_state->hdcp_content_type, enable_encryption); 4868 } 4869 } 4870 } 4871 4872 static int amdgpu_dm_atomic_setup_commit(struct drm_atomic_commit *state) 4873 { 4874 struct drm_crtc *crtc; 4875 struct drm_crtc_state *old_crtc_state, *new_crtc_state; 4876 struct dm_crtc_state *dm_old_crtc_state, *dm_new_crtc_state; 4877 int i, ret; 4878 4879 ret = drm_dp_mst_atomic_setup_commit(state); 4880 if (ret) 4881 return ret; 4882 4883 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { 4884 dm_old_crtc_state = to_dm_crtc_state(old_crtc_state); 4885 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); 4886 /* 4887 * Color management settings. We also update color properties 4888 * when a modeset is needed, to ensure it gets reprogrammed. 4889 */ 4890 if (dm_new_crtc_state->base.active && dm_new_crtc_state->stream && 4891 (dm_new_crtc_state->base.color_mgmt_changed || 4892 dm_old_crtc_state->regamma_tf != dm_new_crtc_state->regamma_tf || 4893 drm_atomic_crtc_needs_modeset(new_crtc_state))) { 4894 ret = amdgpu_dm_update_crtc_color_mgmt(dm_new_crtc_state); 4895 if (ret) { 4896 drm_dbg_atomic(state->dev, "Failed to update color state\n"); 4897 return ret; 4898 } 4899 } 4900 } 4901 4902 return 0; 4903 } 4904 4905 STATIC_IFN_KUNIT void set_multisync_trigger_params( 4906 struct dc_stream_state *stream) 4907 { 4908 struct dc_stream_state *master = NULL; 4909 4910 if (stream->triggered_crtc_reset.enabled) { 4911 master = stream->triggered_crtc_reset.event_source; 4912 stream->triggered_crtc_reset.event = 4913 master->timing.flags.VSYNC_POSITIVE_POLARITY ? 4914 CRTC_EVENT_VSYNC_RISING : CRTC_EVENT_VSYNC_FALLING; 4915 stream->triggered_crtc_reset.delay = TRIGGER_DELAY_NEXT_PIXEL; 4916 } 4917 } 4918 EXPORT_IF_KUNIT(set_multisync_trigger_params); 4919 4920 STATIC_IFN_KUNIT void set_master_stream(struct dc_stream_state *stream_set[], 4921 int stream_count) 4922 { 4923 int j, highest_rfr = 0, master_stream = 0; 4924 4925 for (j = 0; j < stream_count; j++) { 4926 if (stream_set[j] && stream_set[j]->triggered_crtc_reset.enabled) { 4927 int refresh_rate = 0; 4928 4929 refresh_rate = (stream_set[j]->timing.pix_clk_100hz*100)/ 4930 (stream_set[j]->timing.h_total*stream_set[j]->timing.v_total); 4931 if (refresh_rate > highest_rfr) { 4932 highest_rfr = refresh_rate; 4933 master_stream = j; 4934 } 4935 } 4936 } 4937 for (j = 0; j < stream_count; j++) { 4938 if (stream_set[j]) 4939 stream_set[j]->triggered_crtc_reset.event_source = stream_set[master_stream]; 4940 } 4941 } 4942 EXPORT_IF_KUNIT(set_master_stream); 4943 4944 STATIC_IFN_KUNIT void dm_enable_per_frame_crtc_master_sync(struct dc_state *context) 4945 { 4946 int i = 0; 4947 struct dc_stream_state *stream; 4948 4949 if (context->stream_count < 2) 4950 return; 4951 for (i = 0; i < context->stream_count ; i++) { 4952 if (!context->streams[i]) 4953 continue; 4954 /* 4955 * TODO: add a function to read AMD VSDB bits and set 4956 * crtc_sync_master.multi_sync_enabled flag 4957 * For now it's set to false 4958 */ 4959 } 4960 4961 set_master_stream(context->streams, context->stream_count); 4962 4963 for (i = 0; i < context->stream_count ; i++) { 4964 stream = context->streams[i]; 4965 4966 if (!stream) 4967 continue; 4968 4969 set_multisync_trigger_params(stream); 4970 } 4971 } 4972 EXPORT_IF_KUNIT(dm_enable_per_frame_crtc_master_sync); 4973 4974 /** 4975 * amdgpu_dm_atomic_commit_tail() - AMDgpu DM's commit tail implementation. 4976 * @state: The atomic state to commit 4977 * 4978 * This will tell DC to commit the constructed DC state from atomic_check, 4979 * programming the hardware. Any failures here implies a hardware failure, since 4980 * atomic check should have filtered anything non-kosher. 4981 */ 4982 static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_commit *state) 4983 { 4984 struct drm_device *dev = state->dev; 4985 struct amdgpu_device *adev = drm_to_adev(dev); 4986 struct amdgpu_display_manager *dm = &adev->dm; 4987 struct dm_atomic_state *dm_state; 4988 struct dc_state *dc_state = NULL; 4989 u32 i, j; 4990 struct drm_crtc *crtc; 4991 struct drm_crtc_state *old_crtc_state, *new_crtc_state; 4992 unsigned long flags; 4993 bool wait_for_vblank = true; 4994 struct drm_connector *connector; 4995 struct drm_connector_state *old_con_state = NULL, *new_con_state = NULL; 4996 struct dm_crtc_state *dm_old_crtc_state, *dm_new_crtc_state; 4997 int crtc_disable_count = 0; 4998 4999 trace_amdgpu_dm_atomic_commit_tail_begin(state); 5000 5001 drm_atomic_helper_update_legacy_modeset_state(dev, state); 5002 drm_dp_mst_atomic_wait_for_dependencies(state); 5003 5004 dm_state = dm_atomic_get_new_state(state); 5005 if (dm_state && dm_state->context) { 5006 dc_state = dm_state->context; 5007 amdgpu_dm_commit_streams(state, dc_state); 5008 } 5009 5010 amdgpu_dm_update_hdcp(state); 5011 5012 /* Handle connector state changes */ 5013 for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) { 5014 struct dm_connector_state *dm_new_con_state = to_dm_connector_state(new_con_state); 5015 struct dm_connector_state *dm_old_con_state = to_dm_connector_state(old_con_state); 5016 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(dm_new_con_state->base.crtc); 5017 struct dc_surface_update *dummy_updates; 5018 struct dc_stream_update stream_update; 5019 struct dc_info_packet hdr_packet; 5020 struct dc_stream_status *status = NULL; 5021 bool abm_changed, hdr_changed, scaling_changed, output_color_space_changed = false; 5022 5023 memset(&stream_update, 0, sizeof(stream_update)); 5024 5025 if (acrtc) { 5026 new_crtc_state = drm_atomic_get_new_crtc_state(state, &acrtc->base); 5027 old_crtc_state = drm_atomic_get_old_crtc_state(state, &acrtc->base); 5028 } 5029 5030 /* Skip any modesets/resets */ 5031 if (!acrtc || drm_atomic_crtc_needs_modeset(new_crtc_state)) 5032 continue; 5033 5034 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); 5035 dm_old_crtc_state = to_dm_crtc_state(old_crtc_state); 5036 5037 scaling_changed = is_scaling_state_different(dm_new_con_state, 5038 dm_old_con_state); 5039 5040 if ((new_con_state->hdmi.broadcast_rgb != old_con_state->hdmi.broadcast_rgb) && 5041 (dm_old_crtc_state->stream->output_color_space != 5042 amdgpu_dm_get_output_color_space(&dm_new_crtc_state->stream->timing, new_con_state))) 5043 output_color_space_changed = true; 5044 5045 abm_changed = dm_new_crtc_state->abm_level != 5046 dm_old_crtc_state->abm_level; 5047 5048 hdr_changed = 5049 !drm_connector_atomic_hdr_metadata_equal(old_con_state, new_con_state); 5050 5051 if (!scaling_changed && !abm_changed && !hdr_changed && !output_color_space_changed) 5052 continue; 5053 5054 stream_update.stream = dm_new_crtc_state->stream; 5055 if (scaling_changed) { 5056 amdgpu_dm_update_stream_scaling_settings(dev, &dm_new_con_state->base.crtc->mode, 5057 dm_new_con_state, dm_new_crtc_state->stream); 5058 5059 stream_update.src = dm_new_crtc_state->stream->src; 5060 stream_update.dst = dm_new_crtc_state->stream->dst; 5061 } 5062 5063 if (output_color_space_changed) { 5064 dm_new_crtc_state->stream->output_color_space 5065 = amdgpu_dm_get_output_color_space(&dm_new_crtc_state->stream->timing, new_con_state); 5066 5067 stream_update.output_color_space = &dm_new_crtc_state->stream->output_color_space; 5068 } 5069 5070 if (abm_changed) { 5071 dm_new_crtc_state->stream->abm_level = dm_new_crtc_state->abm_level; 5072 5073 stream_update.abm_level = &dm_new_crtc_state->abm_level; 5074 } 5075 5076 if (hdr_changed) { 5077 amdgpu_dm_fill_hdr_info_packet(new_con_state, &hdr_packet); 5078 stream_update.hdr_static_metadata = &hdr_packet; 5079 } 5080 5081 status = dc_stream_get_status(dm_new_crtc_state->stream); 5082 5083 if (WARN_ON(!status)) 5084 continue; 5085 5086 WARN_ON(!status->plane_count); 5087 5088 /* 5089 * TODO: DC refuses to perform stream updates without a dc_surface_update. 5090 * Here we create an empty update on each plane. 5091 * To fix this, DC should permit updating only stream properties. 5092 */ 5093 dummy_updates = kzalloc(sizeof(struct dc_surface_update) * MAX_SURFACES, GFP_KERNEL); 5094 if (!dummy_updates) { 5095 drm_err(adev_to_drm(adev), "Failed to allocate memory for dummy_updates.\n"); 5096 continue; 5097 } 5098 for (j = 0; j < status->plane_count; j++) 5099 dummy_updates[j].surface = status->plane_states[j]; 5100 5101 sort(dummy_updates, status->plane_count, 5102 sizeof(*dummy_updates), dm_plane_layer_index_cmp, NULL); 5103 5104 mutex_lock(&dm->dc_lock); 5105 dc_exit_ips_for_hw_access(dm->dc); 5106 dc_update_planes_and_stream(dm->dc, 5107 dummy_updates, 5108 status->plane_count, 5109 dm_new_crtc_state->stream, 5110 &stream_update); 5111 mutex_unlock(&dm->dc_lock); 5112 kfree(dummy_updates); 5113 5114 drm_connector_update_privacy_screen(new_con_state); 5115 } 5116 5117 /** 5118 * Enable interrupts for CRTCs that are newly enabled or went through 5119 * a modeset. It was intentionally deferred until after the front end 5120 * state was modified to wait until the OTG was on and so the IRQ 5121 * handlers didn't access stale or invalid state. 5122 */ 5123 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { 5124 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc); 5125 #ifdef CONFIG_DEBUG_FS 5126 enum amdgpu_dm_pipe_crc_source cur_crc_src; 5127 #endif 5128 /* Count number of newly disabled CRTCs for dropping PM refs later. */ 5129 if (old_crtc_state->active && !new_crtc_state->active) 5130 crtc_disable_count++; 5131 5132 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); 5133 dm_old_crtc_state = to_dm_crtc_state(old_crtc_state); 5134 5135 /* For freesync config update on crtc state and params for irq */ 5136 amdgpu_dm_update_stream_irq_parameters(dm, dm_new_crtc_state); 5137 5138 #ifdef CONFIG_DEBUG_FS 5139 spin_lock_irqsave(&adev_to_drm(adev)->event_lock, flags); 5140 cur_crc_src = acrtc->dm_irq_params.crc_src; 5141 spin_unlock_irqrestore(&adev_to_drm(adev)->event_lock, flags); 5142 #endif 5143 5144 if (new_crtc_state->active && 5145 (!old_crtc_state->active || 5146 drm_atomic_crtc_needs_modeset(new_crtc_state))) { 5147 dc_stream_retain(dm_new_crtc_state->stream); 5148 acrtc->dm_irq_params.stream = dm_new_crtc_state->stream; 5149 manage_dm_interrupts(adev, acrtc, dm_new_crtc_state); 5150 } 5151 /* Handle vrr on->off / off->on transitions */ 5152 amdgpu_dm_handle_vrr_transition(dm, dm_old_crtc_state, dm_new_crtc_state); 5153 5154 #ifdef CONFIG_DEBUG_FS 5155 if (new_crtc_state->active && 5156 (!old_crtc_state->active || 5157 drm_atomic_crtc_needs_modeset(new_crtc_state))) { 5158 /** 5159 * Frontend may have changed so reapply the CRC capture 5160 * settings for the stream. 5161 */ 5162 if (amdgpu_dm_is_valid_crc_source(cur_crc_src)) { 5163 #if defined(CONFIG_DRM_AMD_SECURE_DISPLAY) 5164 if (amdgpu_dm_crc_window_is_activated(crtc)) { 5165 uint8_t cnt; 5166 5167 spin_lock_irqsave(&adev_to_drm(adev)->event_lock, flags); 5168 for (cnt = 0; cnt < MAX_CRC_WINDOW_NUM; cnt++) { 5169 if (acrtc->dm_irq_params.window_param[cnt].enable) { 5170 acrtc->dm_irq_params.window_param[cnt].update_win = true; 5171 5172 /** 5173 * It takes 2 frames for HW to stably generate CRC when 5174 * resuming from suspend, so we set skip_frame_cnt 2. 5175 */ 5176 acrtc->dm_irq_params.window_param[cnt].skip_frame_cnt = 2; 5177 } 5178 } 5179 spin_unlock_irqrestore(&adev_to_drm(adev)->event_lock, flags); 5180 } 5181 #endif 5182 if (amdgpu_dm_crtc_configure_crc_source( 5183 crtc, dm_new_crtc_state, cur_crc_src)) 5184 drm_dbg_atomic(dev, "Failed to configure crc source"); 5185 } 5186 } 5187 #endif 5188 } 5189 5190 amdgpu_dm_mod_power_setup_streams(state, dm); 5191 5192 for_each_new_crtc_in_state(state, crtc, new_crtc_state, j) 5193 if (new_crtc_state->async_flip) 5194 wait_for_vblank = false; 5195 5196 /* update planes when needed per crtc*/ 5197 for_each_new_crtc_in_state(state, crtc, new_crtc_state, j) { 5198 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); 5199 5200 if (dm_new_crtc_state->stream) 5201 amdgpu_dm_commit_planes(state, dev, dm, crtc, wait_for_vblank); 5202 } 5203 5204 /* Enable writeback */ 5205 for_each_new_connector_in_state(state, connector, new_con_state, i) { 5206 struct dm_connector_state *dm_new_con_state = to_dm_connector_state(new_con_state); 5207 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(dm_new_con_state->base.crtc); 5208 5209 if (connector->connector_type != DRM_MODE_CONNECTOR_WRITEBACK) 5210 continue; 5211 5212 if (!new_con_state->writeback_job) 5213 continue; 5214 5215 new_crtc_state = drm_atomic_get_new_crtc_state(state, &acrtc->base); 5216 5217 if (!new_crtc_state) 5218 continue; 5219 5220 if (acrtc->wb_enabled) 5221 continue; 5222 5223 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); 5224 5225 dm_set_writeback(dm, dm_new_crtc_state, connector, new_con_state); 5226 acrtc->wb_enabled = true; 5227 } 5228 5229 /* Update audio instances for each connector. */ 5230 amdgpu_dm_commit_audio(dev, state); 5231 5232 /* restore the backlight level */ 5233 for (i = 0; i < dm->num_of_edps; i++) { 5234 if (dm->backlight_dev[i] && 5235 (dm->actual_brightness[i] != dm->brightness[i])) 5236 amdgpu_dm_backlight_set_level(dm, i, dm->brightness[i]); 5237 } 5238 5239 /* 5240 * send vblank event on all events not handled in flip and 5241 * mark consumed event for drm_atomic_helper_commit_hw_done 5242 */ 5243 spin_lock_irqsave(&adev_to_drm(adev)->event_lock, flags); 5244 for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) { 5245 5246 if (new_crtc_state->event) 5247 drm_send_event_locked(dev, &new_crtc_state->event->base); 5248 5249 new_crtc_state->event = NULL; 5250 } 5251 spin_unlock_irqrestore(&adev_to_drm(adev)->event_lock, flags); 5252 5253 /* Signal HW programming completion */ 5254 drm_atomic_helper_commit_hw_done(state); 5255 5256 if (wait_for_vblank) 5257 drm_atomic_helper_wait_for_flip_done(dev, state); 5258 5259 drm_atomic_helper_cleanup_planes(dev, state); 5260 5261 /* Don't free the memory if we are hitting this as part of suspend. 5262 * This way we don't free any memory during suspend; see 5263 * amdgpu_bo_free_kernel(). The memory will be freed in the first 5264 * non-suspend modeset or when the driver is torn down. 5265 */ 5266 if (!adev->in_suspend) { 5267 /* return the stolen vga memory back to VRAM */ 5268 if (!adev->mman.keep_stolen_vga_memory) 5269 amdgpu_ttm_unmark_vram_reserved(adev, AMDGPU_RESV_STOLEN_VGA); 5270 amdgpu_ttm_unmark_vram_reserved(adev, AMDGPU_RESV_STOLEN_EXTENDED); 5271 } 5272 5273 /* 5274 * Finally, drop a runtime PM reference for each newly disabled CRTC, 5275 * so we can put the GPU into runtime suspend if we're not driving any 5276 * displays anymore 5277 */ 5278 for (i = 0; i < crtc_disable_count; i++) 5279 pm_runtime_put_autosuspend(dev->dev); 5280 pm_runtime_mark_last_busy(dev->dev); 5281 5282 trace_amdgpu_dm_atomic_commit_tail_finish(state); 5283 } 5284 5285 /* 5286 * Grabs all modesetting locks to serialize against any blocking commits, 5287 * Waits for completion of all non blocking commits. 5288 */ 5289 static int do_aquire_global_lock(struct drm_device *dev, 5290 struct drm_atomic_commit *state) 5291 { 5292 struct drm_crtc *crtc; 5293 struct drm_crtc_commit *commit; 5294 long ret; 5295 5296 /* 5297 * Adding all modeset locks to aquire_ctx will 5298 * ensure that when the framework release it the 5299 * extra locks we are locking here will get released to 5300 */ 5301 ret = drm_modeset_lock_all_ctx(dev, state->acquire_ctx); 5302 if (ret) 5303 return ret; 5304 5305 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 5306 spin_lock(&crtc->commit_lock); 5307 commit = list_first_entry_or_null(&crtc->commit_list, 5308 struct drm_crtc_commit, commit_entry); 5309 if (commit) 5310 drm_crtc_commit_get(commit); 5311 spin_unlock(&crtc->commit_lock); 5312 5313 if (!commit) 5314 continue; 5315 5316 /* 5317 * Make sure all pending HW programming completed and 5318 * page flips done 5319 */ 5320 ret = wait_for_completion_interruptible_timeout(&commit->hw_done, 10*HZ); 5321 5322 if (ret > 0) 5323 ret = wait_for_completion_interruptible_timeout( 5324 &commit->flip_done, 10*HZ); 5325 5326 if (ret == 0) 5327 drm_err(dev, "[CRTC:%d:%s] hw_done or flip_done timed out\n", 5328 crtc->base.id, crtc->name); 5329 5330 drm_crtc_commit_put(commit); 5331 } 5332 5333 return ret < 0 ? ret : 0; 5334 } 5335 5336 static int dm_update_crtc_state(struct amdgpu_display_manager *dm, 5337 struct drm_atomic_commit *state, 5338 struct drm_crtc *crtc, 5339 struct drm_crtc_state *old_crtc_state, 5340 struct drm_crtc_state *new_crtc_state, 5341 bool enable, 5342 bool *lock_and_validation_needed) 5343 { 5344 struct dm_atomic_state *dm_state = NULL; 5345 struct dm_crtc_state *dm_old_crtc_state, *dm_new_crtc_state; 5346 struct dc_stream_state *new_stream; 5347 struct amdgpu_device *adev = dm->adev; 5348 int ret = 0; 5349 5350 /* 5351 * TODO Move this code into dm_crtc_atomic_check once we get rid of dc_validation_set 5352 * update changed items 5353 */ 5354 struct amdgpu_crtc *acrtc = NULL; 5355 struct drm_connector *connector = NULL; 5356 struct amdgpu_dm_connector *aconnector = NULL; 5357 struct drm_connector_state *drm_new_conn_state = NULL, *drm_old_conn_state = NULL; 5358 struct dm_connector_state *dm_new_conn_state = NULL, *dm_old_conn_state = NULL; 5359 5360 new_stream = NULL; 5361 5362 dm_old_crtc_state = to_dm_crtc_state(old_crtc_state); 5363 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); 5364 acrtc = to_amdgpu_crtc(crtc); 5365 connector = amdgpu_dm_find_first_crtc_matching_connector(state, crtc); 5366 if (connector) 5367 aconnector = to_amdgpu_dm_connector(connector); 5368 5369 /* TODO This hack should go away */ 5370 if (connector && enable) { 5371 /* Make sure fake sink is created in plug-in scenario */ 5372 drm_new_conn_state = drm_atomic_get_new_connector_state(state, 5373 connector); 5374 drm_old_conn_state = drm_atomic_get_old_connector_state(state, 5375 connector); 5376 5377 if (WARN_ON(!drm_new_conn_state)) { 5378 ret = -EINVAL; 5379 goto fail; 5380 } 5381 5382 dm_new_conn_state = to_dm_connector_state(drm_new_conn_state); 5383 dm_old_conn_state = to_dm_connector_state(drm_old_conn_state); 5384 5385 if (!drm_atomic_crtc_needs_modeset(new_crtc_state)) 5386 goto skip_modeset; 5387 5388 new_stream = amdgpu_dm_create_validate_stream_for_sink(connector, 5389 &new_crtc_state->mode, 5390 dm_new_conn_state, 5391 dm_old_crtc_state->stream); 5392 5393 /* 5394 * we can have no stream on ACTION_SET if a display 5395 * was disconnected during S3, in this case it is not an 5396 * error, the OS will be updated after detection, and 5397 * will do the right thing on next atomic commit 5398 */ 5399 5400 if (!new_stream) { 5401 drm_dbg_driver(adev_to_drm(adev), "%s: Failed to create new stream for crtc %d\n", 5402 __func__, acrtc->base.base.id); 5403 ret = -ENOMEM; 5404 goto fail; 5405 } 5406 5407 /* 5408 * TODO: Check VSDB bits to decide whether this should 5409 * be enabled or not. 5410 */ 5411 new_stream->triggered_crtc_reset.enabled = 5412 dm->force_timing_sync; 5413 5414 dm_new_crtc_state->abm_level = dm_new_conn_state->abm_level; 5415 5416 ret = amdgpu_dm_fill_hdr_info_packet(drm_new_conn_state, 5417 &new_stream->hdr_static_metadata); 5418 if (ret) 5419 goto fail; 5420 5421 /* 5422 * If we already removed the old stream from the context 5423 * (and set the new stream to NULL) then we can't reuse 5424 * the old stream even if the stream and scaling are unchanged. 5425 * We'll hit the BUG_ON and black screen. 5426 * 5427 * TODO: Refactor this function to allow this check to work 5428 * in all conditions. 5429 */ 5430 if (amdgpu_freesync_vid_mode && 5431 dm_new_crtc_state->stream && 5432 amdgpu_dm_is_timing_unchanged_for_freesync(new_crtc_state, old_crtc_state)) 5433 goto skip_modeset; 5434 5435 if (dm_new_crtc_state->stream && 5436 dc_is_stream_unchanged(new_stream, dm_old_crtc_state->stream) && 5437 dc_is_stream_scaling_unchanged(new_stream, dm_old_crtc_state->stream)) { 5438 new_crtc_state->mode_changed = false; 5439 drm_dbg_driver(adev_to_drm(adev), "Mode change not required, setting mode_changed to %d", 5440 new_crtc_state->mode_changed); 5441 } 5442 } 5443 5444 /* mode_changed flag may get updated above, need to check again */ 5445 if (!drm_atomic_crtc_needs_modeset(new_crtc_state)) 5446 goto skip_modeset; 5447 5448 drm_dbg_state(state->dev, 5449 "amdgpu_crtc id:%d crtc_state_flags: enable:%d, active:%d, planes_changed:%d, mode_changed:%d,active_changed:%d,connectors_changed:%d\n", 5450 acrtc->crtc_id, 5451 new_crtc_state->enable, 5452 new_crtc_state->active, 5453 new_crtc_state->planes_changed, 5454 new_crtc_state->mode_changed, 5455 new_crtc_state->active_changed, 5456 new_crtc_state->connectors_changed); 5457 5458 /* Remove stream for any changed/disabled CRTC */ 5459 if (!enable) { 5460 5461 if (!dm_old_crtc_state->stream) 5462 goto skip_modeset; 5463 5464 /* Unset freesync video if it was active before */ 5465 if (dm_old_crtc_state->freesync_config.state == VRR_STATE_ACTIVE_FIXED) { 5466 dm_new_crtc_state->freesync_config.state = VRR_STATE_INACTIVE; 5467 dm_new_crtc_state->freesync_config.fixed_refresh_in_uhz = 0; 5468 } 5469 5470 /* Now check if we should set freesync video mode */ 5471 if (amdgpu_freesync_vid_mode && dm_new_crtc_state->stream && 5472 dc_is_stream_unchanged(new_stream, dm_old_crtc_state->stream) && 5473 dc_is_stream_scaling_unchanged(new_stream, dm_old_crtc_state->stream) && 5474 amdgpu_dm_is_timing_unchanged_for_freesync(new_crtc_state, 5475 old_crtc_state)) { 5476 new_crtc_state->mode_changed = false; 5477 drm_dbg_driver(adev_to_drm(adev), 5478 "Mode change not required for front porch change, setting mode_changed to %d", 5479 new_crtc_state->mode_changed); 5480 5481 amdgpu_dm_set_freesync_fixed_config(dm_new_crtc_state); 5482 5483 goto skip_modeset; 5484 } else if (amdgpu_freesync_vid_mode && aconnector && 5485 amdgpu_dm_is_freesync_video_mode(&new_crtc_state->mode, 5486 aconnector)) { 5487 struct drm_display_mode *high_mode; 5488 5489 high_mode = amdgpu_dm_get_highest_refresh_rate_mode(aconnector, false); 5490 if (!drm_mode_equal(&new_crtc_state->mode, high_mode)) 5491 amdgpu_dm_set_freesync_fixed_config(dm_new_crtc_state); 5492 } 5493 5494 ret = dm_atomic_get_state(state, &dm_state); 5495 if (ret) 5496 goto fail; 5497 5498 drm_dbg_driver(adev_to_drm(adev), "Disabling DRM crtc: %d\n", 5499 crtc->base.id); 5500 5501 /* i.e. reset mode */ 5502 if (dc_state_remove_stream( 5503 dm->dc, 5504 dm_state->context, 5505 dm_old_crtc_state->stream) != DC_OK) { 5506 ret = -EINVAL; 5507 goto fail; 5508 } 5509 5510 dc_stream_release(dm_old_crtc_state->stream); 5511 dm_new_crtc_state->stream = NULL; 5512 5513 amdgpu_dm_reset_freesync_config_for_crtc(dm_new_crtc_state); 5514 5515 *lock_and_validation_needed = true; 5516 5517 } else {/* Add stream for any updated/enabled CRTC */ 5518 /* 5519 * Quick fix to prevent NULL pointer on new_stream when 5520 * added MST connectors not found in existing crtc_state in the chained mode 5521 * TODO: need to dig out the root cause of that 5522 */ 5523 if (!connector) 5524 goto skip_modeset; 5525 5526 if (modereset_required(new_crtc_state)) 5527 goto skip_modeset; 5528 5529 if (amdgpu_dm_crtc_modeset_required(new_crtc_state, new_stream, 5530 dm_old_crtc_state->stream)) { 5531 5532 WARN_ON(dm_new_crtc_state->stream); 5533 5534 ret = dm_atomic_get_state(state, &dm_state); 5535 if (ret) 5536 goto fail; 5537 5538 dm_new_crtc_state->stream = new_stream; 5539 5540 dc_stream_retain(new_stream); 5541 5542 drm_dbg_atomic(adev_to_drm(adev), "Enabling DRM crtc: %d\n", 5543 crtc->base.id); 5544 5545 if (dc_state_add_stream( 5546 dm->dc, 5547 dm_state->context, 5548 dm_new_crtc_state->stream) != DC_OK) { 5549 ret = -EINVAL; 5550 goto fail; 5551 } 5552 5553 *lock_and_validation_needed = true; 5554 } 5555 } 5556 5557 skip_modeset: 5558 /* Release extra reference */ 5559 if (new_stream) 5560 dc_stream_release(new_stream); 5561 new_stream = NULL; 5562 5563 /* 5564 * We want to do dc stream updates that do not require a 5565 * full modeset below. 5566 */ 5567 if (!(enable && connector && new_crtc_state->active)) 5568 return 0; 5569 /* 5570 * Given above conditions, the dc state cannot be NULL because: 5571 * 1. We're in the process of enabling CRTCs (just been added 5572 * to the dc context, or already is on the context) 5573 * 2. Has a valid connector attached, and 5574 * 3. Is currently active and enabled. 5575 * => The dc stream state currently exists. 5576 */ 5577 BUG_ON(dm_new_crtc_state->stream == NULL); 5578 5579 /* Scaling or underscan settings */ 5580 if (is_scaling_state_different(dm_old_conn_state, dm_new_conn_state) || 5581 drm_atomic_crtc_needs_modeset(new_crtc_state)) 5582 amdgpu_dm_update_stream_scaling_settings(adev_to_drm(adev), 5583 &new_crtc_state->mode, dm_new_conn_state, dm_new_crtc_state->stream); 5584 5585 /* ABM settings */ 5586 dm_new_crtc_state->abm_level = dm_new_conn_state->abm_level; 5587 5588 /* 5589 * Color management settings. We also update color properties 5590 * when a modeset is needed, to ensure it gets reprogrammed. 5591 */ 5592 if (dm_new_crtc_state->base.color_mgmt_changed || 5593 dm_old_crtc_state->regamma_tf != dm_new_crtc_state->regamma_tf || 5594 drm_atomic_crtc_needs_modeset(new_crtc_state)) { 5595 ret = amdgpu_dm_check_crtc_color_mgmt(dm_new_crtc_state, true); 5596 if (ret) 5597 goto fail; 5598 } 5599 5600 /* Update Freesync settings. */ 5601 amdgpu_dm_get_freesync_config_for_crtc(dm_new_crtc_state, 5602 dm_new_conn_state); 5603 5604 return ret; 5605 5606 fail: 5607 if (new_stream) 5608 dc_stream_release(new_stream); 5609 return ret; 5610 } 5611 5612 static bool should_reset_plane(struct drm_atomic_commit *state, 5613 struct drm_plane *plane, 5614 struct drm_plane_state *old_plane_state, 5615 struct drm_plane_state *new_plane_state) 5616 { 5617 struct drm_plane *other; 5618 struct drm_plane_state *old_other_state, *new_other_state; 5619 struct drm_crtc_state *old_crtc_state, *new_crtc_state; 5620 struct dm_crtc_state *old_dm_crtc_state, *new_dm_crtc_state; 5621 struct amdgpu_device *adev = drm_to_adev(plane->dev); 5622 struct drm_connector_state *new_con_state; 5623 struct drm_connector *connector; 5624 int i; 5625 5626 /* 5627 * TODO: Remove this hack for all asics once it proves that the 5628 * fast updates works fine on DCN3.2+. 5629 */ 5630 if (amdgpu_ip_version(adev, DCE_HWIP, 0) < IP_VERSION(3, 2, 0) && 5631 state->allow_modeset) 5632 return true; 5633 5634 /* Check for writeback commit */ 5635 for_each_new_connector_in_state(state, connector, new_con_state, i) { 5636 if (connector->connector_type != DRM_MODE_CONNECTOR_WRITEBACK) 5637 continue; 5638 5639 if (new_con_state->writeback_job) 5640 return true; 5641 } 5642 5643 if (amdgpu_in_reset(adev) && state->allow_modeset) 5644 return true; 5645 5646 /* Exit early if we know that we're adding or removing the plane. */ 5647 if (old_plane_state->crtc != new_plane_state->crtc) 5648 return true; 5649 5650 /* old crtc == new_crtc == NULL, plane not in context. */ 5651 if (!new_plane_state->crtc) 5652 return false; 5653 5654 new_crtc_state = 5655 drm_atomic_get_new_crtc_state(state, new_plane_state->crtc); 5656 old_crtc_state = 5657 drm_atomic_get_old_crtc_state(state, old_plane_state->crtc); 5658 5659 if (!new_crtc_state) 5660 return true; 5661 5662 /* 5663 * A change in cursor mode means a new dc pipe needs to be acquired or 5664 * released from the state 5665 */ 5666 old_dm_crtc_state = to_dm_crtc_state(old_crtc_state); 5667 new_dm_crtc_state = to_dm_crtc_state(new_crtc_state); 5668 if (plane->type == DRM_PLANE_TYPE_CURSOR && 5669 old_dm_crtc_state != NULL && 5670 old_dm_crtc_state->cursor_mode != new_dm_crtc_state->cursor_mode) { 5671 return true; 5672 } 5673 5674 /* CRTC Degamma changes currently require us to recreate planes. */ 5675 if (new_crtc_state->color_mgmt_changed) 5676 return true; 5677 5678 /* 5679 * On zpos change, planes need to be reordered by removing and re-adding 5680 * them one by one to the dc state, in order of descending zpos. 5681 * 5682 * TODO: We can likely skip bandwidth validation if the only thing that 5683 * changed about the plane was it'z z-ordering. 5684 */ 5685 if (old_plane_state->normalized_zpos != new_plane_state->normalized_zpos) 5686 return true; 5687 5688 if (drm_atomic_crtc_needs_modeset(new_crtc_state)) 5689 return true; 5690 5691 /* 5692 * If there are any new primary or overlay planes being added or 5693 * removed then the z-order can potentially change. To ensure 5694 * correct z-order and pipe acquisition the current DC architecture 5695 * requires us to remove and recreate all existing planes. 5696 * 5697 * TODO: Come up with a more elegant solution for this. 5698 */ 5699 for_each_oldnew_plane_in_state(state, other, old_other_state, new_other_state, i) { 5700 struct amdgpu_framebuffer *old_afb, *new_afb; 5701 struct dm_plane_state *dm_new_other_state, *dm_old_other_state; 5702 5703 dm_new_other_state = to_dm_plane_state(new_other_state); 5704 dm_old_other_state = to_dm_plane_state(old_other_state); 5705 5706 if (other->type == DRM_PLANE_TYPE_CURSOR) 5707 continue; 5708 5709 if (old_other_state->crtc != new_plane_state->crtc && 5710 new_other_state->crtc != new_plane_state->crtc) 5711 continue; 5712 5713 if (old_other_state->crtc != new_other_state->crtc) 5714 return true; 5715 5716 /* Src/dst size and scaling updates. */ 5717 if (old_other_state->src_w != new_other_state->src_w || 5718 old_other_state->src_h != new_other_state->src_h || 5719 old_other_state->crtc_w != new_other_state->crtc_w || 5720 old_other_state->crtc_h != new_other_state->crtc_h) 5721 return true; 5722 5723 /* Rotation / mirroring updates. */ 5724 if (old_other_state->rotation != new_other_state->rotation) 5725 return true; 5726 5727 /* Blending updates. */ 5728 if (old_other_state->pixel_blend_mode != 5729 new_other_state->pixel_blend_mode) 5730 return true; 5731 5732 /* Alpha updates. */ 5733 if (old_other_state->alpha != new_other_state->alpha) 5734 return true; 5735 5736 /* Colorspace changes. */ 5737 if (old_other_state->color_range != new_other_state->color_range || 5738 old_other_state->color_encoding != new_other_state->color_encoding) 5739 return true; 5740 5741 /* HDR/Transfer Function changes. */ 5742 if (dm_old_other_state->degamma_tf != dm_new_other_state->degamma_tf || 5743 dm_old_other_state->degamma_lut != dm_new_other_state->degamma_lut || 5744 dm_old_other_state->hdr_mult != dm_new_other_state->hdr_mult || 5745 dm_old_other_state->ctm != dm_new_other_state->ctm || 5746 dm_old_other_state->shaper_lut != dm_new_other_state->shaper_lut || 5747 dm_old_other_state->shaper_tf != dm_new_other_state->shaper_tf || 5748 dm_old_other_state->lut3d != dm_new_other_state->lut3d || 5749 dm_old_other_state->blend_lut != dm_new_other_state->blend_lut || 5750 dm_old_other_state->blend_tf != dm_new_other_state->blend_tf) 5751 return true; 5752 5753 /* Framebuffer checks fall at the end. */ 5754 if (!old_other_state->fb || !new_other_state->fb) 5755 continue; 5756 5757 /* Pixel format changes can require bandwidth updates. */ 5758 if (old_other_state->fb->format != new_other_state->fb->format) 5759 return true; 5760 5761 old_afb = (struct amdgpu_framebuffer *)old_other_state->fb; 5762 new_afb = (struct amdgpu_framebuffer *)new_other_state->fb; 5763 5764 /* Tiling and DCC changes also require bandwidth updates. */ 5765 if (old_afb->base.modifier != new_afb->base.modifier) 5766 return true; 5767 } 5768 5769 return false; 5770 } 5771 5772 static int dm_update_plane_state(struct dc *dc, 5773 struct drm_atomic_commit *state, 5774 struct drm_plane *plane, 5775 struct drm_plane_state *old_plane_state, 5776 struct drm_plane_state *new_plane_state, 5777 bool enable, 5778 bool *lock_and_validation_needed, 5779 bool *is_top_most_overlay) 5780 { 5781 5782 struct dm_atomic_state *dm_state = NULL; 5783 struct drm_crtc *new_plane_crtc, *old_plane_crtc; 5784 struct drm_crtc_state *old_crtc_state, *new_crtc_state; 5785 struct dm_crtc_state *dm_new_crtc_state, *dm_old_crtc_state; 5786 struct dm_plane_state *dm_new_plane_state, *dm_old_plane_state; 5787 bool needs_reset, update_native_cursor; 5788 int ret = 0; 5789 5790 5791 new_plane_crtc = new_plane_state->crtc; 5792 old_plane_crtc = old_plane_state->crtc; 5793 dm_new_plane_state = to_dm_plane_state(new_plane_state); 5794 dm_old_plane_state = to_dm_plane_state(old_plane_state); 5795 5796 update_native_cursor = amdgpu_dm_should_update_native_cursor(state, 5797 old_plane_crtc, 5798 new_plane_crtc, 5799 enable); 5800 5801 if (plane->type == DRM_PLANE_TYPE_CURSOR && update_native_cursor) { 5802 ret = amdgpu_dm_check_native_cursor_state(new_plane_crtc, plane, 5803 new_plane_state, enable); 5804 if (ret) 5805 return ret; 5806 5807 return 0; 5808 } 5809 5810 needs_reset = should_reset_plane(state, plane, old_plane_state, 5811 new_plane_state); 5812 5813 /* Remove any changed/removed planes */ 5814 if (!enable) { 5815 if (!needs_reset) 5816 return 0; 5817 5818 if (!old_plane_crtc) 5819 return 0; 5820 5821 old_crtc_state = drm_atomic_get_old_crtc_state( 5822 state, old_plane_crtc); 5823 dm_old_crtc_state = to_dm_crtc_state(old_crtc_state); 5824 5825 if (!dm_old_crtc_state->stream) 5826 return 0; 5827 5828 drm_dbg_atomic(old_plane_crtc->dev, "Disabling DRM plane: %d on DRM crtc %d\n", 5829 plane->base.id, old_plane_crtc->base.id); 5830 5831 ret = dm_atomic_get_state(state, &dm_state); 5832 if (ret) 5833 return ret; 5834 5835 if (!dc_state_remove_plane( 5836 dc, 5837 dm_old_crtc_state->stream, 5838 dm_old_plane_state->dc_state, 5839 dm_state->context)) { 5840 5841 return -EINVAL; 5842 } 5843 5844 if (dm_old_plane_state->dc_state) 5845 dc_plane_state_release(dm_old_plane_state->dc_state); 5846 5847 dm_new_plane_state->dc_state = NULL; 5848 5849 *lock_and_validation_needed = true; 5850 5851 } else { /* Add new planes */ 5852 struct dc_plane_state *dc_new_plane_state; 5853 5854 if (drm_atomic_plane_disabling(plane->state, new_plane_state)) 5855 return 0; 5856 5857 if (!new_plane_crtc) 5858 return 0; 5859 5860 new_crtc_state = drm_atomic_get_new_crtc_state(state, new_plane_crtc); 5861 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); 5862 5863 if (!dm_new_crtc_state->stream) 5864 return 0; 5865 5866 if (!needs_reset) 5867 return 0; 5868 5869 ret = amdgpu_dm_plane_helper_check_state(new_plane_state, new_crtc_state); 5870 if (ret) 5871 goto out; 5872 5873 WARN_ON(dm_new_plane_state->dc_state); 5874 5875 dc_new_plane_state = dc_create_plane_state(dc); 5876 if (!dc_new_plane_state) { 5877 ret = -ENOMEM; 5878 goto out; 5879 } 5880 5881 drm_dbg_atomic(new_plane_crtc->dev, "Enabling DRM plane: %d on DRM crtc %d\n", 5882 plane->base.id, new_plane_crtc->base.id); 5883 5884 ret = fill_dc_plane_attributes( 5885 drm_to_adev(new_plane_crtc->dev), 5886 dc_new_plane_state, 5887 new_plane_state, 5888 new_crtc_state); 5889 if (ret) { 5890 dc_plane_state_release(dc_new_plane_state); 5891 goto out; 5892 } 5893 5894 ret = dm_atomic_get_state(state, &dm_state); 5895 if (ret) { 5896 dc_plane_state_release(dc_new_plane_state); 5897 goto out; 5898 } 5899 5900 /* 5901 * Any atomic check errors that occur after this will 5902 * not need a release. The plane state will be attached 5903 * to the stream, and therefore part of the atomic 5904 * state. It'll be released when the atomic state is 5905 * cleaned. 5906 */ 5907 if (!dc_state_add_plane( 5908 dc, 5909 dm_new_crtc_state->stream, 5910 dc_new_plane_state, 5911 dm_state->context)) { 5912 5913 dc_plane_state_release(dc_new_plane_state); 5914 ret = -EINVAL; 5915 goto out; 5916 } 5917 5918 dm_new_plane_state->dc_state = dc_new_plane_state; 5919 5920 dm_new_crtc_state->mpo_requested |= (plane->type == DRM_PLANE_TYPE_OVERLAY); 5921 5922 /* Tell DC to do a full surface update every time there 5923 * is a plane change. Inefficient, but works for now. 5924 */ 5925 dm_new_plane_state->dc_state->update_bits.full_update = 1; 5926 5927 *lock_and_validation_needed = true; 5928 } 5929 5930 out: 5931 /* If enabling cursor overlay failed, attempt fallback to native mode */ 5932 if (enable && ret == -EINVAL && plane->type == DRM_PLANE_TYPE_CURSOR) { 5933 ret = amdgpu_dm_check_native_cursor_state(new_plane_crtc, plane, 5934 new_plane_state, enable); 5935 if (ret) 5936 return ret; 5937 5938 dm_new_crtc_state->cursor_mode = DM_CURSOR_NATIVE_MODE; 5939 } 5940 5941 return ret; 5942 } 5943 5944 /* 5945 * The normalized_zpos value cannot be used by this iterator directly. It's only 5946 * calculated for enabled planes, potentially causing normalized_zpos collisions 5947 * between enabled/disabled planes in the atomic state. We need a unique value 5948 * so that the iterator will not generate the same object twice, or loop 5949 * indefinitely. 5950 */ 5951 struct __drm_planes_state *amdgpu_dm_get_next_zpos( 5952 struct drm_atomic_commit *state, 5953 struct __drm_planes_state *prev) 5954 { 5955 unsigned int highest_zpos = 0, prev_zpos = 256; 5956 uint32_t highest_id = 0, prev_id = UINT_MAX; 5957 struct drm_plane_state *new_plane_state; 5958 struct drm_plane *plane; 5959 int i, highest_i = -1; 5960 5961 if (prev != NULL) { 5962 prev_zpos = prev->new_state->zpos; 5963 prev_id = prev->ptr->base.id; 5964 } 5965 5966 for_each_new_plane_in_state(state, plane, new_plane_state, i) { 5967 /* Skip planes with higher zpos than the previously returned */ 5968 if (new_plane_state->zpos > prev_zpos || 5969 (new_plane_state->zpos == prev_zpos && 5970 plane->base.id >= prev_id)) 5971 continue; 5972 5973 /* Save the index of the plane with highest zpos */ 5974 if (new_plane_state->zpos > highest_zpos || 5975 (new_plane_state->zpos == highest_zpos && 5976 plane->base.id > highest_id)) { 5977 highest_zpos = new_plane_state->zpos; 5978 highest_id = plane->base.id; 5979 highest_i = i; 5980 } 5981 } 5982 5983 if (highest_i < 0) 5984 return NULL; 5985 5986 return &state->planes[highest_i]; 5987 } 5988 5989 static int add_affected_mst_dsc_crtcs(struct drm_atomic_commit *state, struct drm_crtc *crtc) 5990 { 5991 struct drm_connector *connector; 5992 struct drm_connector_state *conn_state, *old_conn_state; 5993 struct amdgpu_dm_connector *aconnector = NULL; 5994 int i; 5995 5996 for_each_oldnew_connector_in_state(state, connector, old_conn_state, conn_state, i) { 5997 if (!conn_state->crtc) 5998 conn_state = old_conn_state; 5999 6000 if (conn_state->crtc != crtc) 6001 continue; 6002 6003 if (connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK) 6004 continue; 6005 6006 aconnector = to_amdgpu_dm_connector(connector); 6007 if (!aconnector->mst_output_port || !aconnector->mst_root) 6008 aconnector = NULL; 6009 else 6010 break; 6011 } 6012 6013 if (!aconnector) 6014 return 0; 6015 6016 return drm_dp_mst_add_affected_dsc_crtcs(state, &aconnector->mst_root->mst_mgr); 6017 } 6018 6019 static bool amdgpu_dm_crtc_mem_type_changed(struct drm_device *dev, 6020 struct drm_atomic_commit *state, 6021 struct drm_crtc_state *crtc_state) 6022 { 6023 struct drm_plane *plane; 6024 struct drm_plane_state *new_plane_state, *old_plane_state; 6025 6026 drm_for_each_plane_mask(plane, dev, crtc_state->plane_mask) { 6027 new_plane_state = drm_atomic_get_new_plane_state(state, plane); 6028 old_plane_state = drm_atomic_get_old_plane_state(state, plane); 6029 6030 if (!old_plane_state || !new_plane_state) 6031 continue; 6032 6033 if (old_plane_state->fb && new_plane_state->fb && 6034 get_mem_type(old_plane_state->fb) != get_mem_type(new_plane_state->fb)) 6035 return true; 6036 } 6037 6038 return false; 6039 } 6040 6041 /** 6042 * amdgpu_dm_atomic_check() - Atomic check implementation for AMDgpu DM. 6043 * 6044 * @dev: The DRM device 6045 * @state: The atomic state to commit 6046 * 6047 * Validate that the given atomic state is programmable by DC into hardware. 6048 * This involves constructing a &struct dc_state reflecting the new hardware 6049 * state we wish to commit, then querying DC to see if it is programmable. It's 6050 * important not to modify the existing DC state. Otherwise, atomic_check 6051 * may unexpectedly commit hardware changes. 6052 * 6053 * When validating the DC state, it's important that the right locks are 6054 * acquired. For full updates case which removes/adds/updates streams on one 6055 * CRTC while flipping on another CRTC, acquiring global lock will guarantee 6056 * that any such full update commit will wait for completion of any outstanding 6057 * flip using DRMs synchronization events. 6058 * 6059 * Note that DM adds the affected connectors for all CRTCs in state, when that 6060 * might not seem necessary. This is because DC stream creation requires the 6061 * DC sink, which is tied to the DRM connector state. Cleaning this up should 6062 * be possible but non-trivial - a possible TODO item. 6063 * 6064 * Return: -Error code if validation failed. 6065 */ 6066 static int amdgpu_dm_atomic_check(struct drm_device *dev, 6067 struct drm_atomic_commit *state) 6068 { 6069 struct amdgpu_device *adev = drm_to_adev(dev); 6070 struct dm_atomic_state *dm_state = NULL; 6071 struct dc *dc = adev->dm.dc; 6072 struct drm_connector *connector; 6073 struct drm_connector_state *old_con_state, *new_con_state; 6074 struct drm_crtc *crtc; 6075 struct drm_crtc_state *old_crtc_state, *new_crtc_state; 6076 struct drm_plane *plane; 6077 struct drm_plane_state *old_plane_state, *new_plane_state, *new_cursor_state; 6078 enum dc_status status; 6079 int ret, i; 6080 bool lock_and_validation_needed = false; 6081 bool is_top_most_overlay = true; 6082 struct dm_crtc_state *dm_old_crtc_state, *dm_new_crtc_state; 6083 struct drm_dp_mst_topology_mgr *mgr; 6084 struct drm_dp_mst_topology_state *mst_state; 6085 struct dsc_mst_fairness_vars vars[MAX_PIPES] = {0}; 6086 6087 trace_amdgpu_dm_atomic_check_begin(state); 6088 6089 ret = drm_atomic_helper_check_modeset(dev, state); 6090 if (ret) { 6091 drm_dbg_atomic(dev, "drm_atomic_helper_check_modeset() failed: %pe\n", ERR_PTR(ret)); 6092 goto fail; 6093 } 6094 6095 /* Check connector changes */ 6096 for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) { 6097 struct dm_connector_state *dm_old_con_state = to_dm_connector_state(old_con_state); 6098 struct dm_connector_state *dm_new_con_state = to_dm_connector_state(new_con_state); 6099 6100 /* Skip connectors that are disabled or part of modeset already. */ 6101 if (!new_con_state->crtc) 6102 continue; 6103 6104 new_crtc_state = drm_atomic_get_crtc_state(state, new_con_state->crtc); 6105 if (IS_ERR(new_crtc_state)) { 6106 drm_dbg_atomic(dev, "drm_atomic_get_crtc_state() failed: %pe\n", new_crtc_state); 6107 ret = PTR_ERR(new_crtc_state); 6108 goto fail; 6109 } 6110 6111 if (dm_old_con_state->abm_level != dm_new_con_state->abm_level || 6112 dm_old_con_state->scaling != dm_new_con_state->scaling) 6113 new_crtc_state->connectors_changed = true; 6114 } 6115 6116 if (dc_resource_is_dsc_encoding_supported(dc)) { 6117 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { 6118 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); 6119 dm_new_crtc_state->mode_changed_independent_from_dsc = new_crtc_state->mode_changed; 6120 } 6121 6122 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { 6123 if (drm_atomic_crtc_needs_modeset(new_crtc_state)) { 6124 ret = add_affected_mst_dsc_crtcs(state, crtc); 6125 if (ret) { 6126 drm_dbg_atomic(dev, "add_affected_mst_dsc_crtcs() failed: %pe\n", ERR_PTR(ret)); 6127 goto fail; 6128 } 6129 } 6130 } 6131 } 6132 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { 6133 dm_old_crtc_state = to_dm_crtc_state(old_crtc_state); 6134 6135 if (!drm_atomic_crtc_needs_modeset(new_crtc_state) && 6136 !new_crtc_state->color_mgmt_changed && 6137 old_crtc_state->vrr_enabled == new_crtc_state->vrr_enabled && 6138 dm_old_crtc_state->dsc_force_changed == false) 6139 continue; 6140 6141 ret = amdgpu_dm_verify_lut_sizes(new_crtc_state); 6142 if (ret) { 6143 drm_dbg_atomic(dev, "amdgpu_dm_verify_lut_sizes() failed: %pe\n", ERR_PTR(ret)); 6144 goto fail; 6145 } 6146 6147 if (!new_crtc_state->enable) 6148 continue; 6149 6150 ret = drm_atomic_add_affected_connectors(state, crtc); 6151 if (ret) { 6152 drm_dbg_atomic(dev, "drm_atomic_add_affected_connectors() failed: %pe\n", ERR_PTR(ret)); 6153 goto fail; 6154 } 6155 6156 ret = drm_atomic_add_affected_planes(state, crtc); 6157 if (ret) { 6158 drm_dbg_atomic(dev, "drm_atomic_add_affected_planes() failed: %pe\n", ERR_PTR(ret)); 6159 goto fail; 6160 } 6161 6162 if (dm_old_crtc_state->dsc_force_changed) 6163 new_crtc_state->mode_changed = true; 6164 } 6165 6166 /* 6167 * Add all primary and overlay planes on the CRTC to the state 6168 * whenever a plane is enabled to maintain correct z-ordering 6169 * and to enable fast surface updates. 6170 */ 6171 drm_for_each_crtc(crtc, dev) { 6172 bool modified = false; 6173 6174 for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, i) { 6175 if (plane->type == DRM_PLANE_TYPE_CURSOR) 6176 continue; 6177 6178 if (new_plane_state->crtc == crtc || 6179 old_plane_state->crtc == crtc) { 6180 modified = true; 6181 break; 6182 } 6183 } 6184 6185 if (!modified) 6186 continue; 6187 6188 drm_for_each_plane_mask(plane, state->dev, crtc->state->plane_mask) { 6189 if (plane->type == DRM_PLANE_TYPE_CURSOR) 6190 continue; 6191 6192 new_plane_state = 6193 drm_atomic_get_plane_state(state, plane); 6194 6195 if (IS_ERR(new_plane_state)) { 6196 ret = PTR_ERR(new_plane_state); 6197 drm_dbg_atomic(dev, "new_plane_state is BAD: %pe\n", new_plane_state); 6198 goto fail; 6199 } 6200 } 6201 } 6202 6203 /* 6204 * DC consults the zpos (layer_index in DC terminology) to determine the 6205 * hw plane on which to enable the hw cursor (see 6206 * `dcn10_can_pipe_disable_cursor`). By now, all modified planes are in 6207 * atomic state, so call drm helper to normalize zpos. 6208 */ 6209 ret = drm_atomic_normalize_zpos(dev, state); 6210 if (ret) { 6211 drm_dbg(dev, "drm_atomic_normalize_zpos() failed: %pe\n", ERR_PTR(ret)); 6212 goto fail; 6213 } 6214 6215 /* 6216 * Determine whether cursors on each CRTC should be enabled in native or 6217 * overlay mode. 6218 */ 6219 for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) { 6220 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); 6221 6222 ret = amdgpu_dm_crtc_get_cursor_mode(adev, state, dm_new_crtc_state, 6223 &dm_new_crtc_state->cursor_mode); 6224 if (ret) { 6225 drm_dbg(dev, "Failed to determine cursor mode: %pe\n", ERR_PTR(ret)); 6226 goto fail; 6227 } 6228 6229 /* 6230 * If overlay cursor is needed, DC cannot go through the 6231 * native cursor update path. All enabled planes on the CRTC 6232 * need to be added for DC to not disable a plane by mistake 6233 */ 6234 if (dm_new_crtc_state->cursor_mode == DM_CURSOR_OVERLAY_MODE) { 6235 if (amdgpu_ip_version(adev, DCE_HWIP, 0) == 0) { 6236 drm_dbg(dev, "Overlay cursor not supported on DCE\n"); 6237 ret = -EINVAL; 6238 goto fail; 6239 } 6240 6241 ret = drm_atomic_add_affected_planes(state, crtc); 6242 if (ret) 6243 goto fail; 6244 } 6245 } 6246 6247 /* Remove exiting planes if they are modified */ 6248 for_each_oldnew_plane_in_descending_zpos(state, plane, old_plane_state, new_plane_state) { 6249 6250 ret = dm_update_plane_state(dc, state, plane, 6251 old_plane_state, 6252 new_plane_state, 6253 false, 6254 &lock_and_validation_needed, 6255 &is_top_most_overlay); 6256 if (ret) { 6257 drm_dbg_atomic(dev, "dm_update_plane_state() failed: %pe\n", ERR_PTR(ret)); 6258 goto fail; 6259 } 6260 } 6261 6262 /* Disable all crtcs which require disable */ 6263 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { 6264 ret = dm_update_crtc_state(&adev->dm, state, crtc, 6265 old_crtc_state, 6266 new_crtc_state, 6267 false, 6268 &lock_and_validation_needed); 6269 if (ret) { 6270 drm_dbg_atomic(dev, "DISABLE: dm_update_crtc_state() failed: %pe\n", ERR_PTR(ret)); 6271 goto fail; 6272 } 6273 } 6274 6275 /* Enable all crtcs which require enable */ 6276 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { 6277 ret = dm_update_crtc_state(&adev->dm, state, crtc, 6278 old_crtc_state, 6279 new_crtc_state, 6280 true, 6281 &lock_and_validation_needed); 6282 if (ret) { 6283 drm_dbg_atomic(dev, "ENABLE: dm_update_crtc_state() failed: %pe\n", ERR_PTR(ret)); 6284 goto fail; 6285 } 6286 } 6287 6288 /* Add new/modified planes */ 6289 for_each_oldnew_plane_in_descending_zpos(state, plane, old_plane_state, new_plane_state) { 6290 ret = dm_update_plane_state(dc, state, plane, 6291 old_plane_state, 6292 new_plane_state, 6293 true, 6294 &lock_and_validation_needed, 6295 &is_top_most_overlay); 6296 if (ret) { 6297 drm_dbg_atomic(dev, "dm_update_plane_state() failed: %pe\n", ERR_PTR(ret)); 6298 goto fail; 6299 } 6300 } 6301 6302 #if defined(CONFIG_DRM_AMD_DC_FP) 6303 if (dc_resource_is_dsc_encoding_supported(dc)) { 6304 ret = pre_validate_dsc(state, &dm_state, vars); 6305 if (ret != 0) 6306 goto fail; 6307 } 6308 #endif 6309 6310 /* Run this here since we want to validate the streams we created */ 6311 ret = drm_atomic_helper_check_planes(dev, state); 6312 if (ret) { 6313 drm_dbg_atomic(dev, "drm_atomic_helper_check_planes() failed: %pe\n", ERR_PTR(ret)); 6314 goto fail; 6315 } 6316 6317 for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) { 6318 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); 6319 if (dm_new_crtc_state->mpo_requested) 6320 drm_dbg_atomic(dev, "MPO enablement requested on crtc:[%p]\n", crtc); 6321 } 6322 6323 /* Check cursor restrictions */ 6324 for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) { 6325 enum amdgpu_dm_cursor_mode required_cursor_mode; 6326 int is_rotated, is_scaled; 6327 6328 /* Overlay cusor not subject to native cursor restrictions */ 6329 dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); 6330 if (dm_new_crtc_state->cursor_mode == DM_CURSOR_OVERLAY_MODE) 6331 continue; 6332 6333 /* Check if rotation or scaling is enabled on DCN401 */ 6334 if ((drm_plane_mask(crtc->cursor) & 6335 new_crtc_state->plane_mask) && 6336 (amdgpu_ip_version(adev, DCE_HWIP, 0) == IP_VERSION(4, 2, 1) || 6337 amdgpu_ip_version(adev, DCE_HWIP, 0) == IP_VERSION(4, 2, 0) || 6338 amdgpu_ip_version(adev, DCE_HWIP, 0) == IP_VERSION(4, 0, 1))) { 6339 new_cursor_state = drm_atomic_get_new_plane_state(state, crtc->cursor); 6340 6341 is_rotated = new_cursor_state && 6342 ((new_cursor_state->rotation & DRM_MODE_ROTATE_MASK) != DRM_MODE_ROTATE_0); 6343 is_scaled = new_cursor_state && ((new_cursor_state->src_w >> 16 != new_cursor_state->crtc_w) || 6344 (new_cursor_state->src_h >> 16 != new_cursor_state->crtc_h)); 6345 6346 if (is_rotated || is_scaled) { 6347 drm_dbg_driver( 6348 crtc->dev, 6349 "[CRTC:%d:%s] cannot enable hardware cursor due to rotation/scaling\n", 6350 crtc->base.id, crtc->name); 6351 ret = -EINVAL; 6352 goto fail; 6353 } 6354 } 6355 6356 /* If HW can only do native cursor, check restrictions again */ 6357 ret = amdgpu_dm_crtc_get_cursor_mode(adev, state, dm_new_crtc_state, 6358 &required_cursor_mode); 6359 if (ret) { 6360 drm_dbg_driver(crtc->dev, 6361 "[CRTC:%d:%s] Checking cursor mode failed\n", 6362 crtc->base.id, crtc->name); 6363 goto fail; 6364 } else if (required_cursor_mode == DM_CURSOR_OVERLAY_MODE) { 6365 drm_dbg_driver(crtc->dev, 6366 "[CRTC:%d:%s] Cannot enable native cursor due to scaling, YUV, or color pipeline restrictions\n", 6367 crtc->base.id, crtc->name); 6368 ret = -EINVAL; 6369 goto fail; 6370 } 6371 } 6372 6373 if (state->legacy_cursor_update) { 6374 /* 6375 * This is a fast cursor update coming from the plane update 6376 * helper, check if it can be done asynchronously for better 6377 * performance. 6378 */ 6379 state->async_update = 6380 !drm_atomic_helper_async_check(dev, state); 6381 6382 /* 6383 * Skip the remaining global validation if this is an async 6384 * update. Cursor updates can be done without affecting 6385 * state or bandwidth calcs and this avoids the performance 6386 * penalty of locking the private state object and 6387 * allocating a new dc_state. 6388 */ 6389 if (state->async_update) 6390 return 0; 6391 } 6392 6393 /* Check scaling and underscan changes*/ 6394 /* TODO Removed scaling changes validation due to inability to commit 6395 * new stream into context w\o causing full reset. Need to 6396 * decide how to handle. 6397 */ 6398 for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) { 6399 struct dm_connector_state *dm_old_con_state = to_dm_connector_state(old_con_state); 6400 struct dm_connector_state *dm_new_con_state = to_dm_connector_state(new_con_state); 6401 struct amdgpu_crtc *acrtc = to_amdgpu_crtc(dm_new_con_state->base.crtc); 6402 6403 /* Skip any modesets/resets */ 6404 if (!acrtc || drm_atomic_crtc_needs_modeset( 6405 drm_atomic_get_new_crtc_state(state, &acrtc->base))) 6406 continue; 6407 6408 /* Skip any thing not scale or underscan changes */ 6409 if (!is_scaling_state_different(dm_new_con_state, dm_old_con_state)) 6410 continue; 6411 6412 lock_and_validation_needed = true; 6413 } 6414 6415 /* set the slot info for each mst_state based on the link encoding format */ 6416 for_each_new_mst_mgr_in_state(state, mgr, mst_state, i) { 6417 struct amdgpu_dm_connector *aconnector; 6418 struct drm_connector *connector; 6419 struct drm_connector_list_iter iter; 6420 u8 link_coding_cap; 6421 6422 drm_connector_list_iter_begin(dev, &iter); 6423 drm_for_each_connector_iter(connector, &iter) { 6424 if (connector->index == mst_state->mgr->conn_base_id) { 6425 aconnector = to_amdgpu_dm_connector(connector); 6426 link_coding_cap = dc_link_dp_mst_decide_link_encoding_format(aconnector->dc_link); 6427 drm_dp_mst_update_slots(mst_state, link_coding_cap); 6428 6429 break; 6430 } 6431 } 6432 drm_connector_list_iter_end(&iter); 6433 } 6434 6435 /** 6436 * Streams and planes are reset when there are changes that affect 6437 * bandwidth. Anything that affects bandwidth needs to go through 6438 * DC global validation to ensure that the configuration can be applied 6439 * to hardware. 6440 * 6441 * We have to currently stall out here in atomic_check for outstanding 6442 * commits to finish in this case because our IRQ handlers reference 6443 * DRM state directly - we can end up disabling interrupts too early 6444 * if we don't. 6445 * 6446 * TODO: Remove this stall and drop DM state private objects. 6447 */ 6448 if (lock_and_validation_needed) { 6449 ret = dm_atomic_get_state(state, &dm_state); 6450 if (ret) { 6451 drm_dbg_atomic(dev, "dm_atomic_get_state() failed: %pe\n", ERR_PTR(ret)); 6452 goto fail; 6453 } 6454 6455 ret = do_aquire_global_lock(dev, state); 6456 if (ret) { 6457 drm_dbg_atomic(dev, "do_aquire_global_lock() failed: %pe\n", ERR_PTR(ret)); 6458 goto fail; 6459 } 6460 6461 #if defined(CONFIG_DRM_AMD_DC_FP) 6462 if (dc_resource_is_dsc_encoding_supported(dc)) { 6463 ret = compute_mst_dsc_configs_for_state(state, dm_state->context, vars); 6464 if (ret) { 6465 drm_dbg_atomic(dev, "MST_DSC compute_mst_dsc_configs_for_state() failed: %pe\n", ERR_PTR(ret)); 6466 ret = -EINVAL; 6467 goto fail; 6468 } 6469 } 6470 #endif 6471 6472 ret = dm_update_mst_vcpi_slots_for_dsc(state, dm_state->context, vars); 6473 if (ret) { 6474 drm_dbg_atomic(dev, "dm_update_mst_vcpi_slots_for_dsc() failed: %pe\n", ERR_PTR(ret)); 6475 goto fail; 6476 } 6477 6478 /* 6479 * Perform validation of MST topology in the state: 6480 * We need to perform MST atomic check before calling 6481 * dc_validate_global_state(), or there is a chance 6482 * to get stuck in an infinite loop and hang eventually. 6483 */ 6484 ret = drm_dp_mst_atomic_check(state); 6485 if (ret) { 6486 drm_dbg_atomic(dev, "MST drm_dp_mst_atomic_check() failed: %pe\n", ERR_PTR(ret)); 6487 goto fail; 6488 } 6489 status = dc_validate_global_state(dc, dm_state->context, DC_VALIDATE_MODE_ONLY); 6490 if (status != DC_OK) { 6491 drm_dbg_atomic(dev, "DC global validation failure: %s (%d)", 6492 dc_status_to_str(status), status); 6493 ret = -EINVAL; 6494 goto fail; 6495 } 6496 } else { 6497 /* 6498 * The commit is a fast update. Fast updates shouldn't change 6499 * the DC context, affect global validation, and can have their 6500 * commit work done in parallel with other commits not touching 6501 * the same resource. If we have a new DC context as part of 6502 * the DM atomic state from validation we need to free it and 6503 * retain the existing one instead. 6504 * 6505 * Furthermore, since the DM atomic state only contains the DC 6506 * context and can safely be annulled, we can free the state 6507 * and clear the associated private object now to free 6508 * some memory and avoid a possible use-after-free later. 6509 */ 6510 6511 for (i = 0; i < state->num_private_objs; i++) { 6512 struct drm_private_obj *obj = state->private_objs[i].ptr; 6513 6514 if (obj->funcs == adev->dm.atomic_obj.funcs) { 6515 int j = state->num_private_objs-1; 6516 6517 dm_atomic_destroy_state(obj, 6518 state->private_objs[i].state_to_destroy); 6519 6520 /* If i is not at the end of the array then the 6521 * last element needs to be moved to where i was 6522 * before the array can safely be truncated. 6523 */ 6524 if (i != j) 6525 state->private_objs[i] = 6526 state->private_objs[j]; 6527 6528 state->private_objs[j].ptr = NULL; 6529 state->private_objs[j].state_to_destroy = NULL; 6530 state->private_objs[j].old_state = NULL; 6531 state->private_objs[j].new_state = NULL; 6532 6533 state->num_private_objs = j; 6534 break; 6535 } 6536 } 6537 } 6538 6539 /* Store the overall update type for use later in atomic check. */ 6540 for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) { 6541 struct dm_crtc_state *dm_new_crtc_state = 6542 to_dm_crtc_state(new_crtc_state); 6543 6544 /* 6545 * Only allow async flips for fast updates that don't change 6546 * the FB pitch, the DCC state, rotation, mem_type, etc. 6547 */ 6548 if (new_crtc_state->async_flip && 6549 (lock_and_validation_needed || 6550 amdgpu_dm_crtc_mem_type_changed(dev, state, new_crtc_state))) { 6551 drm_dbg_atomic(crtc->dev, 6552 "[CRTC:%d:%s] async flips are only supported for fast updates\n", 6553 crtc->base.id, crtc->name); 6554 ret = -EINVAL; 6555 goto fail; 6556 } 6557 6558 dm_new_crtc_state->update_type = lock_and_validation_needed ? 6559 UPDATE_TYPE_FULL : UPDATE_TYPE_FAST; 6560 } 6561 6562 /* Must be success */ 6563 WARN_ON(ret); 6564 6565 trace_amdgpu_dm_atomic_check_finish(state, ret); 6566 6567 return ret; 6568 6569 fail: 6570 if (ret == -EDEADLK) 6571 drm_dbg_atomic(dev, "Atomic check stopped to avoid deadlock.\n"); 6572 else if (ret == -EINTR || ret == -EAGAIN || ret == -ERESTARTSYS) 6573 drm_dbg_atomic(dev, "Atomic check stopped due to signal.\n"); 6574 else 6575 drm_dbg_atomic(dev, "Atomic check failed: %pe\n", ERR_PTR(ret)); 6576 6577 trace_amdgpu_dm_atomic_check_finish(state, ret); 6578 6579 return ret; 6580 } 6581 6582 void amdgpu_dm_trigger_timing_sync(struct drm_device *dev) 6583 { 6584 struct amdgpu_device *adev = drm_to_adev(dev); 6585 struct dc *dc = adev->dm.dc; 6586 int i; 6587 6588 mutex_lock(&adev->dm.dc_lock); 6589 if (dc->current_state) { 6590 for (i = 0; i < dc->current_state->stream_count; ++i) 6591 dc->current_state->streams[i] 6592 ->triggered_crtc_reset.enabled = 6593 adev->dm.force_timing_sync; 6594 6595 dm_enable_per_frame_crtc_master_sync(dc->current_state); 6596 dc_trigger_sync(dc, dc->current_state); 6597 } 6598 mutex_unlock(&adev->dm.dc_lock); 6599 } 6600 6601 void dm_write_reg_func(const struct dc_context *ctx, uint32_t address, 6602 u32 value, const char *func_name) 6603 { 6604 #ifdef DM_CHECK_ADDR_0 6605 if (address == 0) { 6606 drm_err(adev_to_drm(ctx->driver_context), 6607 "invalid register write. address = 0"); 6608 return; 6609 } 6610 #endif 6611 6612 amdgpu_dm_exit_ips_for_hw_access(ctx->dc); 6613 cgs_write_register(ctx->cgs_device, address, value); 6614 trace_amdgpu_dc_wreg(&ctx->perf_trace->write_count, address, value); 6615 } 6616 6617 uint32_t dm_read_reg_func(const struct dc_context *ctx, uint32_t address, 6618 const char *func_name) 6619 { 6620 u32 value; 6621 #ifdef DM_CHECK_ADDR_0 6622 if (address == 0) { 6623 drm_err(adev_to_drm(ctx->driver_context), 6624 "invalid register read; address = 0\n"); 6625 return 0; 6626 } 6627 #endif 6628 6629 amdgpu_dm_exit_ips_for_hw_access(ctx->dc); 6630 6631 value = cgs_read_register(ctx->cgs_device, address); 6632 6633 trace_amdgpu_dc_rreg(&ctx->perf_trace->read_count, address, value); 6634 6635 return value; 6636 } 6637 6638 void dm_acpi_process_phy_transition_interlock( 6639 const struct dc_context *ctx, 6640 struct dm_process_phy_transition_init_params process_phy_transition_init_params) 6641 { 6642 // Not yet implemented 6643 } 6644