1 /* 2 * Copyright 2007-8 Advanced Micro Devices, Inc. 3 * Copyright 2008 Red Hat 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: Dave Airlie 24 * Alex Deucher 25 */ 26 27 #include <drm/amdgpu_drm.h> 28 #include "amdgpu.h" 29 #include "amdgpu_i2c.h" 30 #include "atom.h" 31 #include "amdgpu_connectors.h" 32 #include "amdgpu_display.h" 33 #include "soc15_common.h" 34 #include "gc/gc_11_0_0_offset.h" 35 #include "gc/gc_11_0_0_sh_mask.h" 36 #include <asm/div64.h> 37 38 #include <linux/pci.h> 39 #include <linux/pm_runtime.h> 40 #include <drm/drm_crtc_helper.h> 41 #include <drm/drm_damage_helper.h> 42 #include <drm/drm_drv.h> 43 #include <drm/drm_edid.h> 44 #include <drm/drm_fb_helper.h> 45 #include <drm/drm_gem_framebuffer_helper.h> 46 #include <drm/drm_fourcc.h> 47 #include <drm/drm_modeset_helper.h> 48 #include <drm/drm_vblank.h> 49 50 /** 51 * amdgpu_display_hotplug_work_func - work handler for display hotplug event 52 * 53 * @work: work struct pointer 54 * 55 * This is the hotplug event work handler (all ASICs). 56 * The work gets scheduled from the IRQ handler if there 57 * was a hotplug interrupt. It walks through the connector table 58 * and calls hotplug handler for each connector. After this, it sends 59 * a DRM hotplug event to alert userspace. 60 * 61 * This design approach is required in order to defer hotplug event handling 62 * from the IRQ handler to a work handler because hotplug handler has to use 63 * mutexes which cannot be locked in an IRQ handler (since &mutex_lock may 64 * sleep). 65 */ 66 void amdgpu_display_hotplug_work_func(struct work_struct *work) 67 { 68 struct amdgpu_device *adev = container_of(work, struct amdgpu_device, 69 hotplug_work.work); 70 struct drm_device *dev = adev_to_drm(adev); 71 struct drm_mode_config *mode_config = &dev->mode_config; 72 struct drm_connector *connector; 73 struct drm_connector_list_iter iter; 74 75 mutex_lock(&mode_config->mutex); 76 drm_connector_list_iter_begin(dev, &iter); 77 drm_for_each_connector_iter(connector, &iter) 78 amdgpu_connector_hotplug(connector); 79 drm_connector_list_iter_end(&iter); 80 mutex_unlock(&mode_config->mutex); 81 /* Just fire off a uevent and let userspace tell us what to do */ 82 drm_helper_hpd_irq_event(dev); 83 } 84 85 static int amdgpu_display_framebuffer_init(struct drm_device *dev, 86 struct amdgpu_framebuffer *rfb, 87 const struct drm_mode_fb_cmd2 *mode_cmd, 88 struct drm_gem_object *obj); 89 90 static void amdgpu_display_flip_callback(struct dma_fence *f, 91 struct dma_fence_cb *cb) 92 { 93 struct amdgpu_flip_work *work = 94 container_of(cb, struct amdgpu_flip_work, cb); 95 96 dma_fence_put(f); 97 schedule_work(&work->flip_work.work); 98 } 99 100 static bool amdgpu_display_flip_handle_fence(struct amdgpu_flip_work *work, 101 struct dma_fence **f) 102 { 103 struct dma_fence *fence = *f; 104 105 if (fence == NULL) 106 return false; 107 108 *f = NULL; 109 110 if (!dma_fence_add_callback(fence, &work->cb, 111 amdgpu_display_flip_callback)) 112 return true; 113 114 dma_fence_put(fence); 115 return false; 116 } 117 118 static void amdgpu_display_flip_work_func(struct work_struct *__work) 119 { 120 struct delayed_work *delayed_work = 121 container_of(__work, struct delayed_work, work); 122 struct amdgpu_flip_work *work = 123 container_of(delayed_work, struct amdgpu_flip_work, flip_work); 124 struct amdgpu_device *adev = work->adev; 125 struct amdgpu_crtc *amdgpu_crtc = adev->mode_info.crtcs[work->crtc_id]; 126 127 struct drm_crtc *crtc = &amdgpu_crtc->base; 128 unsigned long flags; 129 unsigned int i; 130 int vpos, hpos; 131 132 for (i = 0; i < work->shared_count; ++i) 133 if (amdgpu_display_flip_handle_fence(work, &work->shared[i])) 134 return; 135 136 /* Wait until we're out of the vertical blank period before the one 137 * targeted by the flip 138 */ 139 if (amdgpu_crtc->enabled && 140 (amdgpu_display_get_crtc_scanoutpos(adev_to_drm(adev), work->crtc_id, 0, 141 &vpos, &hpos, NULL, NULL, 142 &crtc->hwmode) 143 & (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_IN_VBLANK)) == 144 (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_IN_VBLANK) && 145 (int)(work->target_vblank - 146 amdgpu_get_vblank_counter_kms(crtc)) > 0) { 147 schedule_delayed_work(&work->flip_work, usecs_to_jiffies(1000)); 148 return; 149 } 150 151 /* We borrow the event spin lock for protecting flip_status */ 152 spin_lock_irqsave(&crtc->dev->event_lock, flags); 153 154 /* Do the flip (mmio) */ 155 adev->mode_info.funcs->page_flip(adev, work->crtc_id, work->base, work->async); 156 157 /* Set the flip status */ 158 amdgpu_crtc->pflip_status = AMDGPU_FLIP_SUBMITTED; 159 spin_unlock_irqrestore(&crtc->dev->event_lock, flags); 160 161 162 drm_dbg_vbl(adev_to_drm(adev), 163 "crtc:%d[%p], pflip_stat:AMDGPU_FLIP_SUBMITTED, work: %p,\n", 164 amdgpu_crtc->crtc_id, amdgpu_crtc, work); 165 166 } 167 168 /* 169 * Handle unpin events outside the interrupt handler proper. 170 */ 171 static void amdgpu_display_unpin_work_func(struct work_struct *__work) 172 { 173 struct amdgpu_flip_work *work = 174 container_of(__work, struct amdgpu_flip_work, unpin_work); 175 int r; 176 177 /* unpin of the old buffer */ 178 r = amdgpu_bo_reserve(work->old_abo, true); 179 if (likely(r == 0)) { 180 amdgpu_bo_unpin(work->old_abo); 181 amdgpu_bo_unreserve(work->old_abo); 182 } else 183 DRM_ERROR("failed to reserve buffer after flip\n"); 184 185 amdgpu_bo_unref(&work->old_abo); 186 kfree(work->shared); 187 kfree(work); 188 } 189 190 int amdgpu_display_crtc_page_flip_target(struct drm_crtc *crtc, 191 struct drm_framebuffer *fb, 192 struct drm_pending_vblank_event *event, 193 uint32_t page_flip_flags, uint32_t target, 194 struct drm_modeset_acquire_ctx *ctx) 195 { 196 struct drm_device *dev = crtc->dev; 197 struct amdgpu_device *adev = drm_to_adev(dev); 198 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); 199 struct drm_gem_object *obj; 200 struct amdgpu_flip_work *work; 201 struct amdgpu_bo *new_abo; 202 unsigned long flags; 203 u64 tiling_flags; 204 int i, r; 205 206 work = kzalloc(sizeof(*work), GFP_KERNEL); 207 if (work == NULL) 208 return -ENOMEM; 209 210 INIT_DELAYED_WORK(&work->flip_work, amdgpu_display_flip_work_func); 211 INIT_WORK(&work->unpin_work, amdgpu_display_unpin_work_func); 212 213 work->event = event; 214 work->adev = adev; 215 work->crtc_id = amdgpu_crtc->crtc_id; 216 work->async = (page_flip_flags & DRM_MODE_PAGE_FLIP_ASYNC) != 0; 217 218 /* schedule unpin of the old buffer */ 219 obj = crtc->primary->fb->obj[0]; 220 221 /* take a reference to the old object */ 222 work->old_abo = gem_to_amdgpu_bo(obj); 223 amdgpu_bo_ref(work->old_abo); 224 225 obj = fb->obj[0]; 226 new_abo = gem_to_amdgpu_bo(obj); 227 228 /* pin the new buffer */ 229 r = amdgpu_bo_reserve(new_abo, false); 230 if (unlikely(r != 0)) { 231 DRM_ERROR("failed to reserve new abo buffer before flip\n"); 232 goto cleanup; 233 } 234 235 if (!adev->enable_virtual_display) { 236 r = amdgpu_bo_pin(new_abo, 237 amdgpu_display_supported_domains(adev, new_abo->flags)); 238 if (unlikely(r != 0)) { 239 DRM_ERROR("failed to pin new abo buffer before flip\n"); 240 goto unreserve; 241 } 242 } 243 244 r = amdgpu_ttm_alloc_gart(&new_abo->tbo); 245 if (unlikely(r != 0)) { 246 DRM_ERROR("%p bind failed\n", new_abo); 247 goto unpin; 248 } 249 250 r = dma_resv_get_fences(new_abo->tbo.base.resv, DMA_RESV_USAGE_WRITE, 251 &work->shared_count, 252 &work->shared); 253 if (unlikely(r != 0)) { 254 DRM_ERROR("failed to get fences for buffer\n"); 255 goto unpin; 256 } 257 258 amdgpu_bo_get_tiling_flags(new_abo, &tiling_flags); 259 amdgpu_bo_unreserve(new_abo); 260 261 if (!adev->enable_virtual_display) 262 work->base = amdgpu_bo_gpu_offset(new_abo); 263 work->target_vblank = target - (uint32_t)drm_crtc_vblank_count(crtc) + 264 amdgpu_get_vblank_counter_kms(crtc); 265 266 /* we borrow the event spin lock for protecting flip_wrok */ 267 spin_lock_irqsave(&crtc->dev->event_lock, flags); 268 if (amdgpu_crtc->pflip_status != AMDGPU_FLIP_NONE) { 269 DRM_DEBUG_DRIVER("flip queue: crtc already busy\n"); 270 spin_unlock_irqrestore(&crtc->dev->event_lock, flags); 271 r = -EBUSY; 272 goto pflip_cleanup; 273 } 274 275 amdgpu_crtc->pflip_status = AMDGPU_FLIP_PENDING; 276 amdgpu_crtc->pflip_works = work; 277 278 279 DRM_DEBUG_DRIVER("crtc:%d[%p], pflip_stat:AMDGPU_FLIP_PENDING, work: %p,\n", 280 amdgpu_crtc->crtc_id, amdgpu_crtc, work); 281 /* update crtc fb */ 282 crtc->primary->fb = fb; 283 spin_unlock_irqrestore(&crtc->dev->event_lock, flags); 284 amdgpu_display_flip_work_func(&work->flip_work.work); 285 return 0; 286 287 pflip_cleanup: 288 if (unlikely(amdgpu_bo_reserve(new_abo, false) != 0)) { 289 DRM_ERROR("failed to reserve new abo in error path\n"); 290 goto cleanup; 291 } 292 unpin: 293 if (!adev->enable_virtual_display) 294 amdgpu_bo_unpin(new_abo); 295 296 unreserve: 297 amdgpu_bo_unreserve(new_abo); 298 299 cleanup: 300 amdgpu_bo_unref(&work->old_abo); 301 for (i = 0; i < work->shared_count; ++i) 302 dma_fence_put(work->shared[i]); 303 kfree(work->shared); 304 kfree(work); 305 306 return r; 307 } 308 309 int amdgpu_display_crtc_set_config(struct drm_mode_set *set, 310 struct drm_modeset_acquire_ctx *ctx) 311 { 312 struct drm_device *dev; 313 struct amdgpu_device *adev; 314 struct drm_crtc *crtc; 315 bool active = false; 316 int ret; 317 318 if (!set || !set->crtc) 319 return -EINVAL; 320 321 dev = set->crtc->dev; 322 323 ret = pm_runtime_get_sync(dev->dev); 324 if (ret < 0) 325 goto out; 326 327 ret = drm_crtc_helper_set_config(set, ctx); 328 329 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) 330 if (crtc->enabled) 331 active = true; 332 333 pm_runtime_mark_last_busy(dev->dev); 334 335 adev = drm_to_adev(dev); 336 /* if we have active crtcs and we don't have a power ref, 337 * take the current one 338 */ 339 if (active && !adev->have_disp_power_ref) { 340 adev->have_disp_power_ref = true; 341 return ret; 342 } 343 /* if we have no active crtcs, then go to 344 * drop the power ref we got before 345 */ 346 if (!active && adev->have_disp_power_ref) 347 adev->have_disp_power_ref = false; 348 out: 349 /* drop the power reference we got coming in here */ 350 pm_runtime_put_autosuspend(dev->dev); 351 return ret; 352 } 353 354 static const char *encoder_names[41] = { 355 "NONE", 356 "INTERNAL_LVDS", 357 "INTERNAL_TMDS1", 358 "INTERNAL_TMDS2", 359 "INTERNAL_DAC1", 360 "INTERNAL_DAC2", 361 "INTERNAL_SDVOA", 362 "INTERNAL_SDVOB", 363 "SI170B", 364 "CH7303", 365 "CH7301", 366 "INTERNAL_DVO1", 367 "EXTERNAL_SDVOA", 368 "EXTERNAL_SDVOB", 369 "TITFP513", 370 "INTERNAL_LVTM1", 371 "VT1623", 372 "HDMI_SI1930", 373 "HDMI_INTERNAL", 374 "INTERNAL_KLDSCP_TMDS1", 375 "INTERNAL_KLDSCP_DVO1", 376 "INTERNAL_KLDSCP_DAC1", 377 "INTERNAL_KLDSCP_DAC2", 378 "SI178", 379 "MVPU_FPGA", 380 "INTERNAL_DDI", 381 "VT1625", 382 "HDMI_SI1932", 383 "DP_AN9801", 384 "DP_DP501", 385 "INTERNAL_UNIPHY", 386 "INTERNAL_KLDSCP_LVTMA", 387 "INTERNAL_UNIPHY1", 388 "INTERNAL_UNIPHY2", 389 "NUTMEG", 390 "TRAVIS", 391 "INTERNAL_VCE", 392 "INTERNAL_UNIPHY3", 393 "HDMI_ANX9805", 394 "INTERNAL_AMCLK", 395 "VIRTUAL", 396 }; 397 398 static const char *hpd_names[6] = { 399 "HPD1", 400 "HPD2", 401 "HPD3", 402 "HPD4", 403 "HPD5", 404 "HPD6", 405 }; 406 407 void amdgpu_display_print_display_setup(struct drm_device *dev) 408 { 409 struct drm_connector *connector; 410 struct amdgpu_connector *amdgpu_connector; 411 struct drm_encoder *encoder; 412 struct amdgpu_encoder *amdgpu_encoder; 413 struct drm_connector_list_iter iter; 414 uint32_t devices; 415 int i = 0; 416 417 drm_connector_list_iter_begin(dev, &iter); 418 DRM_INFO("AMDGPU Display Connectors\n"); 419 drm_for_each_connector_iter(connector, &iter) { 420 amdgpu_connector = to_amdgpu_connector(connector); 421 DRM_INFO("Connector %d:\n", i); 422 DRM_INFO(" %s\n", connector->name); 423 if (amdgpu_connector->hpd.hpd != AMDGPU_HPD_NONE) 424 DRM_INFO(" %s\n", hpd_names[amdgpu_connector->hpd.hpd]); 425 if (amdgpu_connector->ddc_bus) { 426 DRM_INFO(" DDC: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n", 427 amdgpu_connector->ddc_bus->rec.mask_clk_reg, 428 amdgpu_connector->ddc_bus->rec.mask_data_reg, 429 amdgpu_connector->ddc_bus->rec.a_clk_reg, 430 amdgpu_connector->ddc_bus->rec.a_data_reg, 431 amdgpu_connector->ddc_bus->rec.en_clk_reg, 432 amdgpu_connector->ddc_bus->rec.en_data_reg, 433 amdgpu_connector->ddc_bus->rec.y_clk_reg, 434 amdgpu_connector->ddc_bus->rec.y_data_reg); 435 if (amdgpu_connector->router.ddc_valid) 436 DRM_INFO(" DDC Router 0x%x/0x%x\n", 437 amdgpu_connector->router.ddc_mux_control_pin, 438 amdgpu_connector->router.ddc_mux_state); 439 if (amdgpu_connector->router.cd_valid) 440 DRM_INFO(" Clock/Data Router 0x%x/0x%x\n", 441 amdgpu_connector->router.cd_mux_control_pin, 442 amdgpu_connector->router.cd_mux_state); 443 } else { 444 if (connector->connector_type == DRM_MODE_CONNECTOR_VGA || 445 connector->connector_type == DRM_MODE_CONNECTOR_DVII || 446 connector->connector_type == DRM_MODE_CONNECTOR_DVID || 447 connector->connector_type == DRM_MODE_CONNECTOR_DVIA || 448 connector->connector_type == DRM_MODE_CONNECTOR_HDMIA || 449 connector->connector_type == DRM_MODE_CONNECTOR_HDMIB) 450 DRM_INFO(" DDC: no ddc bus - possible BIOS bug - please report to xorg-driver-ati@lists.x.org\n"); 451 } 452 DRM_INFO(" Encoders:\n"); 453 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 454 amdgpu_encoder = to_amdgpu_encoder(encoder); 455 devices = amdgpu_encoder->devices & amdgpu_connector->devices; 456 if (devices) { 457 if (devices & ATOM_DEVICE_CRT1_SUPPORT) 458 DRM_INFO(" CRT1: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 459 if (devices & ATOM_DEVICE_CRT2_SUPPORT) 460 DRM_INFO(" CRT2: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 461 if (devices & ATOM_DEVICE_LCD1_SUPPORT) 462 DRM_INFO(" LCD1: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 463 if (devices & ATOM_DEVICE_DFP1_SUPPORT) 464 DRM_INFO(" DFP1: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 465 if (devices & ATOM_DEVICE_DFP2_SUPPORT) 466 DRM_INFO(" DFP2: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 467 if (devices & ATOM_DEVICE_DFP3_SUPPORT) 468 DRM_INFO(" DFP3: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 469 if (devices & ATOM_DEVICE_DFP4_SUPPORT) 470 DRM_INFO(" DFP4: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 471 if (devices & ATOM_DEVICE_DFP5_SUPPORT) 472 DRM_INFO(" DFP5: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 473 if (devices & ATOM_DEVICE_DFP6_SUPPORT) 474 DRM_INFO(" DFP6: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 475 if (devices & ATOM_DEVICE_TV1_SUPPORT) 476 DRM_INFO(" TV1: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 477 if (devices & ATOM_DEVICE_CV_SUPPORT) 478 DRM_INFO(" CV: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 479 } 480 } 481 i++; 482 } 483 drm_connector_list_iter_end(&iter); 484 } 485 486 bool amdgpu_display_ddc_probe(struct amdgpu_connector *amdgpu_connector, 487 bool use_aux) 488 { 489 u8 out = 0x0; 490 u8 buf[8]; 491 int ret; 492 struct i2c_msg msgs[] = { 493 { 494 .addr = DDC_ADDR, 495 .flags = 0, 496 .len = 1, 497 .buf = &out, 498 }, 499 { 500 .addr = DDC_ADDR, 501 .flags = I2C_M_RD, 502 .len = 8, 503 .buf = buf, 504 } 505 }; 506 507 /* on hw with routers, select right port */ 508 if (amdgpu_connector->router.ddc_valid) 509 amdgpu_i2c_router_select_ddc_port(amdgpu_connector); 510 511 if (use_aux) 512 ret = i2c_transfer(&amdgpu_connector->ddc_bus->aux.ddc, msgs, 2); 513 else 514 ret = i2c_transfer(&amdgpu_connector->ddc_bus->adapter, msgs, 2); 515 516 if (ret != 2) 517 /* Couldn't find an accessible DDC on this connector */ 518 return false; 519 /* Probe also for valid EDID header 520 * EDID header starts with: 521 * 0x00,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x00. 522 * Only the first 6 bytes must be valid as 523 * drm_edid_block_valid() can fix the last 2 bytes 524 */ 525 if (drm_edid_header_is_valid(buf) < 6) { 526 /* Couldn't find an accessible EDID on this 527 * connector 528 */ 529 return false; 530 } 531 return true; 532 } 533 534 static int amdgpu_dirtyfb(struct drm_framebuffer *fb, struct drm_file *file, 535 unsigned int flags, unsigned int color, 536 struct drm_clip_rect *clips, unsigned int num_clips) 537 { 538 539 if (file) 540 return -ENOSYS; 541 542 return drm_atomic_helper_dirtyfb(fb, file, flags, color, clips, 543 num_clips); 544 } 545 546 static const struct drm_framebuffer_funcs amdgpu_fb_funcs = { 547 .destroy = drm_gem_fb_destroy, 548 .create_handle = drm_gem_fb_create_handle, 549 }; 550 551 static const struct drm_framebuffer_funcs amdgpu_fb_funcs_atomic = { 552 .destroy = drm_gem_fb_destroy, 553 .create_handle = drm_gem_fb_create_handle, 554 .dirty = amdgpu_dirtyfb 555 }; 556 557 uint32_t amdgpu_display_supported_domains(struct amdgpu_device *adev, 558 uint64_t bo_flags) 559 { 560 uint32_t domain = AMDGPU_GEM_DOMAIN_VRAM; 561 562 #if defined(CONFIG_DRM_AMD_DC) 563 /* 564 * if amdgpu_bo_support_uswc returns false it means that USWC mappings 565 * is not supported for this board. But this mapping is required 566 * to avoid hang caused by placement of scanout BO in GTT on certain 567 * APUs. So force the BO placement to VRAM in case this architecture 568 * will not allow USWC mappings. 569 * Also, don't allow GTT domain if the BO doesn't have USWC flag set. 570 */ 571 if ((bo_flags & AMDGPU_GEM_CREATE_CPU_GTT_USWC) && 572 amdgpu_bo_support_uswc(bo_flags) && 573 adev->dc_enabled && 574 adev->mode_info.gpu_vm_support) 575 domain |= AMDGPU_GEM_DOMAIN_GTT; 576 #endif 577 578 return domain; 579 } 580 581 static const struct drm_format_info dcc_formats[] = { 582 { .format = DRM_FORMAT_XRGB8888, .depth = 24, .num_planes = 2, 583 .cpp = { 4, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, }, 584 { .format = DRM_FORMAT_XBGR8888, .depth = 24, .num_planes = 2, 585 .cpp = { 4, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, }, 586 { .format = DRM_FORMAT_ARGB8888, .depth = 32, .num_planes = 2, 587 .cpp = { 4, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, 588 .has_alpha = true, }, 589 { .format = DRM_FORMAT_ABGR8888, .depth = 32, .num_planes = 2, 590 .cpp = { 4, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, 591 .has_alpha = true, }, 592 { .format = DRM_FORMAT_BGRA8888, .depth = 32, .num_planes = 2, 593 .cpp = { 4, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, 594 .has_alpha = true, }, 595 { .format = DRM_FORMAT_XRGB2101010, .depth = 30, .num_planes = 2, 596 .cpp = { 4, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, }, 597 { .format = DRM_FORMAT_XBGR2101010, .depth = 30, .num_planes = 2, 598 .cpp = { 4, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, }, 599 { .format = DRM_FORMAT_ARGB2101010, .depth = 30, .num_planes = 2, 600 .cpp = { 4, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, 601 .has_alpha = true, }, 602 { .format = DRM_FORMAT_ABGR2101010, .depth = 30, .num_planes = 2, 603 .cpp = { 4, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, 604 .has_alpha = true, }, 605 { .format = DRM_FORMAT_RGB565, .depth = 16, .num_planes = 2, 606 .cpp = { 2, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, }, 607 }; 608 609 static const struct drm_format_info dcc_retile_formats[] = { 610 { .format = DRM_FORMAT_XRGB8888, .depth = 24, .num_planes = 3, 611 .cpp = { 4, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, }, 612 { .format = DRM_FORMAT_XBGR8888, .depth = 24, .num_planes = 3, 613 .cpp = { 4, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, }, 614 { .format = DRM_FORMAT_ARGB8888, .depth = 32, .num_planes = 3, 615 .cpp = { 4, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, 616 .has_alpha = true, }, 617 { .format = DRM_FORMAT_ABGR8888, .depth = 32, .num_planes = 3, 618 .cpp = { 4, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, 619 .has_alpha = true, }, 620 { .format = DRM_FORMAT_BGRA8888, .depth = 32, .num_planes = 3, 621 .cpp = { 4, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, 622 .has_alpha = true, }, 623 { .format = DRM_FORMAT_XRGB2101010, .depth = 30, .num_planes = 3, 624 .cpp = { 4, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, }, 625 { .format = DRM_FORMAT_XBGR2101010, .depth = 30, .num_planes = 3, 626 .cpp = { 4, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, }, 627 { .format = DRM_FORMAT_ARGB2101010, .depth = 30, .num_planes = 3, 628 .cpp = { 4, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, 629 .has_alpha = true, }, 630 { .format = DRM_FORMAT_ABGR2101010, .depth = 30, .num_planes = 3, 631 .cpp = { 4, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, 632 .has_alpha = true, }, 633 { .format = DRM_FORMAT_RGB565, .depth = 16, .num_planes = 3, 634 .cpp = { 2, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, }, 635 }; 636 637 static const struct drm_format_info * 638 lookup_format_info(const struct drm_format_info formats[], 639 int num_formats, u32 format) 640 { 641 int i; 642 643 for (i = 0; i < num_formats; i++) { 644 if (formats[i].format == format) 645 return &formats[i]; 646 } 647 648 return NULL; 649 } 650 651 const struct drm_format_info * 652 amdgpu_lookup_format_info(u32 format, uint64_t modifier) 653 { 654 if (!IS_AMD_FMT_MOD(modifier)) 655 return NULL; 656 657 if (AMD_FMT_MOD_GET(DCC_RETILE, modifier)) 658 return lookup_format_info(dcc_retile_formats, 659 ARRAY_SIZE(dcc_retile_formats), 660 format); 661 662 if (AMD_FMT_MOD_GET(DCC, modifier)) 663 return lookup_format_info(dcc_formats, ARRAY_SIZE(dcc_formats), 664 format); 665 666 /* returning NULL will cause the default format structs to be used. */ 667 return NULL; 668 } 669 670 671 /* 672 * Tries to extract the renderable DCC offset from the opaque metadata attached 673 * to the buffer. 674 */ 675 static int 676 extract_render_dcc_offset(struct amdgpu_device *adev, 677 struct drm_gem_object *obj, 678 uint64_t *offset) 679 { 680 struct amdgpu_bo *rbo; 681 int r = 0; 682 uint32_t metadata[10]; /* Something that fits a descriptor + header. */ 683 uint32_t size; 684 685 rbo = gem_to_amdgpu_bo(obj); 686 r = amdgpu_bo_reserve(rbo, false); 687 688 if (unlikely(r)) { 689 /* Don't show error message when returning -ERESTARTSYS */ 690 if (r != -ERESTARTSYS) 691 DRM_ERROR("Unable to reserve buffer: %d\n", r); 692 return r; 693 } 694 695 r = amdgpu_bo_get_metadata(rbo, metadata, sizeof(metadata), &size, NULL); 696 amdgpu_bo_unreserve(rbo); 697 698 if (r) 699 return r; 700 701 /* 702 * The first word is the metadata version, and we need space for at least 703 * the version + pci vendor+device id + 8 words for a descriptor. 704 */ 705 if (size < 40 || metadata[0] != 1) 706 return -EINVAL; 707 708 if (adev->family >= AMDGPU_FAMILY_NV) { 709 /* resource word 6/7 META_DATA_ADDRESS{_LO} */ 710 *offset = ((u64)metadata[9] << 16u) | 711 ((metadata[8] & 0xFF000000u) >> 16); 712 } else { 713 /* resource word 5/7 META_DATA_ADDRESS */ 714 *offset = ((u64)metadata[9] << 8u) | 715 ((u64)(metadata[7] & 0x1FE0000u) << 23); 716 } 717 718 return 0; 719 } 720 721 static int convert_tiling_flags_to_modifier_gfx12(struct amdgpu_framebuffer *afb) 722 { 723 struct amdgpu_device *adev = drm_to_adev(afb->base.dev); 724 const struct drm_format_info *format_info; 725 u64 modifier = 0; 726 int tile = 0; 727 int swizzle = 0; 728 729 if (amdgpu_ip_version(adev, GC_HWIP, 0) >= IP_VERSION(12, 0, 0)) { 730 tile = AMD_FMT_MOD_TILE_VER_GFX12; 731 swizzle = AMDGPU_TILING_GET(afb->tiling_flags, GFX12_SWIZZLE_MODE); 732 } 733 734 modifier = 735 AMD_FMT_MOD | 736 AMD_FMT_MOD_SET(TILE, swizzle) | 737 AMD_FMT_MOD_SET(TILE_VERSION, tile) | 738 AMD_FMT_MOD_SET(DCC, 0) | 739 AMD_FMT_MOD_SET(DCC_MAX_COMPRESSED_BLOCK, 0); 740 741 format_info = amdgpu_lookup_format_info(afb->base.format->format, 742 modifier); 743 if (!format_info) 744 return -EINVAL; 745 746 afb->base.modifier = modifier; 747 afb->base.flags |= DRM_MODE_FB_MODIFIERS; 748 749 return 0; 750 } 751 752 static int convert_tiling_flags_to_modifier(struct amdgpu_framebuffer *afb) 753 { 754 struct amdgpu_device *adev = drm_to_adev(afb->base.dev); 755 uint64_t modifier = 0; 756 int num_pipes = 0; 757 int num_pkrs = 0; 758 759 num_pkrs = adev->gfx.config.gb_addr_config_fields.num_pkrs; 760 num_pipes = adev->gfx.config.gb_addr_config_fields.num_pipes; 761 762 if (!afb->tiling_flags || !AMDGPU_TILING_GET(afb->tiling_flags, SWIZZLE_MODE)) { 763 modifier = DRM_FORMAT_MOD_LINEAR; 764 } else { 765 int swizzle = AMDGPU_TILING_GET(afb->tiling_flags, SWIZZLE_MODE); 766 bool has_xor = swizzle >= 16; 767 int block_size_bits; 768 int version; 769 int pipe_xor_bits = 0; 770 int bank_xor_bits = 0; 771 int packers = 0; 772 int rb = 0; 773 int pipes = ilog2(num_pipes); 774 uint32_t dcc_offset = AMDGPU_TILING_GET(afb->tiling_flags, DCC_OFFSET_256B); 775 776 777 if (amdgpu_ip_version(adev, GC_HWIP, 0) >= IP_VERSION(12, 0, 0)) { 778 convert_tiling_flags_to_modifier_gfx12(afb); 779 return 0; 780 } 781 782 switch (swizzle >> 2) { 783 case 0: /* 256B */ 784 block_size_bits = 8; 785 break; 786 case 1: /* 4KiB */ 787 case 5: /* 4KiB _X */ 788 block_size_bits = 12; 789 break; 790 case 2: /* 64KiB */ 791 case 4: /* 64 KiB _T */ 792 case 6: /* 64 KiB _X */ 793 block_size_bits = 16; 794 break; 795 case 7: /* 256 KiB */ 796 block_size_bits = 18; 797 break; 798 default: 799 /* RESERVED or VAR */ 800 return -EINVAL; 801 } 802 803 if (amdgpu_ip_version(adev, GC_HWIP, 0) >= IP_VERSION(11, 0, 0)) 804 version = AMD_FMT_MOD_TILE_VER_GFX11; 805 else if (amdgpu_ip_version(adev, GC_HWIP, 0) >= 806 IP_VERSION(10, 3, 0)) 807 version = AMD_FMT_MOD_TILE_VER_GFX10_RBPLUS; 808 else if (amdgpu_ip_version(adev, GC_HWIP, 0) >= 809 IP_VERSION(10, 0, 0)) 810 version = AMD_FMT_MOD_TILE_VER_GFX10; 811 else 812 version = AMD_FMT_MOD_TILE_VER_GFX9; 813 814 switch (swizzle & 3) { 815 case 0: /* Z microtiling */ 816 return -EINVAL; 817 case 1: /* S microtiling */ 818 if (amdgpu_ip_version(adev, GC_HWIP, 0) < 819 IP_VERSION(11, 0, 0)) { 820 if (!has_xor) 821 version = AMD_FMT_MOD_TILE_VER_GFX9; 822 } 823 break; 824 case 2: 825 if (amdgpu_ip_version(adev, GC_HWIP, 0) < 826 IP_VERSION(11, 0, 0)) { 827 if (!has_xor && afb->base.format->cpp[0] != 4) 828 version = AMD_FMT_MOD_TILE_VER_GFX9; 829 } 830 break; 831 case 3: 832 break; 833 } 834 835 if (has_xor) { 836 if (num_pipes == num_pkrs && num_pkrs == 0) { 837 DRM_ERROR("invalid number of pipes and packers\n"); 838 return -EINVAL; 839 } 840 841 switch (version) { 842 case AMD_FMT_MOD_TILE_VER_GFX11: 843 pipe_xor_bits = min(block_size_bits - 8, pipes); 844 packers = ilog2(adev->gfx.config.gb_addr_config_fields.num_pkrs); 845 break; 846 case AMD_FMT_MOD_TILE_VER_GFX10_RBPLUS: 847 pipe_xor_bits = min(block_size_bits - 8, pipes); 848 packers = min(block_size_bits - 8 - pipe_xor_bits, 849 ilog2(adev->gfx.config.gb_addr_config_fields.num_pkrs)); 850 break; 851 case AMD_FMT_MOD_TILE_VER_GFX10: 852 pipe_xor_bits = min(block_size_bits - 8, pipes); 853 break; 854 case AMD_FMT_MOD_TILE_VER_GFX9: 855 rb = ilog2(adev->gfx.config.gb_addr_config_fields.num_se) + 856 ilog2(adev->gfx.config.gb_addr_config_fields.num_rb_per_se); 857 pipe_xor_bits = min(block_size_bits - 8, pipes + 858 ilog2(adev->gfx.config.gb_addr_config_fields.num_se)); 859 bank_xor_bits = min(block_size_bits - 8 - pipe_xor_bits, 860 ilog2(adev->gfx.config.gb_addr_config_fields.num_banks)); 861 break; 862 } 863 } 864 865 modifier = AMD_FMT_MOD | 866 AMD_FMT_MOD_SET(TILE, AMDGPU_TILING_GET(afb->tiling_flags, SWIZZLE_MODE)) | 867 AMD_FMT_MOD_SET(TILE_VERSION, version) | 868 AMD_FMT_MOD_SET(PIPE_XOR_BITS, pipe_xor_bits) | 869 AMD_FMT_MOD_SET(BANK_XOR_BITS, bank_xor_bits) | 870 AMD_FMT_MOD_SET(PACKERS, packers); 871 872 if (dcc_offset != 0) { 873 bool dcc_i64b = AMDGPU_TILING_GET(afb->tiling_flags, DCC_INDEPENDENT_64B) != 0; 874 bool dcc_i128b = version >= AMD_FMT_MOD_TILE_VER_GFX10_RBPLUS; 875 const struct drm_format_info *format_info; 876 u64 render_dcc_offset; 877 878 /* Enable constant encode on RAVEN2 and later. */ 879 bool dcc_constant_encode = 880 (adev->asic_type > CHIP_RAVEN || 881 (adev->asic_type == CHIP_RAVEN && 882 adev->external_rev_id >= 0x81)) && 883 amdgpu_ip_version(adev, GC_HWIP, 0) < 884 IP_VERSION(11, 0, 0); 885 886 int max_cblock_size = dcc_i64b ? AMD_FMT_MOD_DCC_BLOCK_64B : 887 dcc_i128b ? AMD_FMT_MOD_DCC_BLOCK_128B : 888 AMD_FMT_MOD_DCC_BLOCK_256B; 889 890 modifier |= AMD_FMT_MOD_SET(DCC, 1) | 891 AMD_FMT_MOD_SET(DCC_CONSTANT_ENCODE, dcc_constant_encode) | 892 AMD_FMT_MOD_SET(DCC_INDEPENDENT_64B, dcc_i64b) | 893 AMD_FMT_MOD_SET(DCC_INDEPENDENT_128B, dcc_i128b) | 894 AMD_FMT_MOD_SET(DCC_MAX_COMPRESSED_BLOCK, max_cblock_size); 895 896 afb->base.offsets[1] = dcc_offset * 256 + afb->base.offsets[0]; 897 afb->base.pitches[1] = 898 AMDGPU_TILING_GET(afb->tiling_flags, DCC_PITCH_MAX) + 1; 899 900 /* 901 * If the userspace driver uses retiling the tiling flags do not contain 902 * info on the renderable DCC buffer. Luckily the opaque metadata contains 903 * the info so we can try to extract it. The kernel does not use this info 904 * but we should convert it to a modifier plane for getfb2, so the 905 * userspace driver that gets it doesn't have to juggle around another DCC 906 * plane internally. 907 */ 908 if (extract_render_dcc_offset(adev, afb->base.obj[0], 909 &render_dcc_offset) == 0 && 910 render_dcc_offset != 0 && 911 render_dcc_offset != afb->base.offsets[1] && 912 render_dcc_offset < UINT_MAX) { 913 uint32_t dcc_block_bits; /* of base surface data */ 914 915 modifier |= AMD_FMT_MOD_SET(DCC_RETILE, 1); 916 afb->base.offsets[2] = render_dcc_offset; 917 918 if (adev->family >= AMDGPU_FAMILY_NV) { 919 int extra_pipe = 0; 920 921 if ((amdgpu_ip_version(adev, GC_HWIP, 922 0) >= 923 IP_VERSION(10, 3, 0)) && 924 pipes == packers && pipes > 1) 925 extra_pipe = 1; 926 927 dcc_block_bits = max(20, 16 + pipes + extra_pipe); 928 } else { 929 modifier |= AMD_FMT_MOD_SET(RB, rb) | 930 AMD_FMT_MOD_SET(PIPE, pipes); 931 dcc_block_bits = max(20, 18 + rb); 932 } 933 934 dcc_block_bits -= ilog2(afb->base.format->cpp[0]); 935 afb->base.pitches[2] = ALIGN(afb->base.width, 936 1u << ((dcc_block_bits + 1) / 2)); 937 } 938 format_info = amdgpu_lookup_format_info(afb->base.format->format, 939 modifier); 940 if (!format_info) 941 return -EINVAL; 942 943 afb->base.format = format_info; 944 } 945 } 946 947 afb->base.modifier = modifier; 948 afb->base.flags |= DRM_MODE_FB_MODIFIERS; 949 return 0; 950 } 951 952 /* Mirrors the is_displayable check in radeonsi's gfx6_compute_surface */ 953 static int check_tiling_flags_gfx6(struct amdgpu_framebuffer *afb) 954 { 955 u64 micro_tile_mode; 956 957 /* Zero swizzle mode means linear */ 958 if (AMDGPU_TILING_GET(afb->tiling_flags, SWIZZLE_MODE) == 0) 959 return 0; 960 961 micro_tile_mode = AMDGPU_TILING_GET(afb->tiling_flags, MICRO_TILE_MODE); 962 switch (micro_tile_mode) { 963 case 0: /* DISPLAY */ 964 case 3: /* RENDER */ 965 return 0; 966 default: 967 drm_dbg_kms(afb->base.dev, 968 "Micro tile mode %llu not supported for scanout\n", 969 micro_tile_mode); 970 return -EINVAL; 971 } 972 } 973 974 static void get_block_dimensions(unsigned int block_log2, unsigned int cpp, 975 unsigned int *width, unsigned int *height) 976 { 977 unsigned int cpp_log2 = ilog2(cpp); 978 unsigned int pixel_log2 = block_log2 - cpp_log2; 979 unsigned int width_log2 = (pixel_log2 + 1) / 2; 980 unsigned int height_log2 = pixel_log2 - width_log2; 981 982 *width = 1 << width_log2; 983 *height = 1 << height_log2; 984 } 985 986 static unsigned int get_dcc_block_size(uint64_t modifier, bool rb_aligned, 987 bool pipe_aligned) 988 { 989 unsigned int ver = AMD_FMT_MOD_GET(TILE_VERSION, modifier); 990 991 switch (ver) { 992 case AMD_FMT_MOD_TILE_VER_GFX9: { 993 /* 994 * TODO: for pipe aligned we may need to check the alignment of the 995 * total size of the surface, which may need to be bigger than the 996 * natural alignment due to some HW workarounds 997 */ 998 return max(10 + (rb_aligned ? (int)AMD_FMT_MOD_GET(RB, modifier) : 0), 12); 999 } 1000 case AMD_FMT_MOD_TILE_VER_GFX10: 1001 case AMD_FMT_MOD_TILE_VER_GFX10_RBPLUS: 1002 case AMD_FMT_MOD_TILE_VER_GFX11: { 1003 int pipes_log2 = AMD_FMT_MOD_GET(PIPE_XOR_BITS, modifier); 1004 1005 if (ver >= AMD_FMT_MOD_TILE_VER_GFX10_RBPLUS && pipes_log2 > 1 && 1006 AMD_FMT_MOD_GET(PACKERS, modifier) == pipes_log2) 1007 ++pipes_log2; 1008 1009 return max(8 + (pipe_aligned ? pipes_log2 : 0), 12); 1010 } 1011 default: 1012 return 0; 1013 } 1014 } 1015 1016 static int amdgpu_display_verify_plane(struct amdgpu_framebuffer *rfb, int plane, 1017 const struct drm_format_info *format, 1018 unsigned int block_width, unsigned int block_height, 1019 unsigned int block_size_log2) 1020 { 1021 unsigned int width = rfb->base.width / 1022 ((plane && plane < format->num_planes) ? format->hsub : 1); 1023 unsigned int height = rfb->base.height / 1024 ((plane && plane < format->num_planes) ? format->vsub : 1); 1025 unsigned int cpp = plane < format->num_planes ? format->cpp[plane] : 1; 1026 unsigned int block_pitch = block_width * cpp; 1027 unsigned int min_pitch = ALIGN(width * cpp, block_pitch); 1028 unsigned int block_size = 1 << block_size_log2; 1029 uint64_t size; 1030 1031 if (rfb->base.pitches[plane] % block_pitch) { 1032 drm_dbg_kms(rfb->base.dev, 1033 "pitch %d for plane %d is not a multiple of block pitch %d\n", 1034 rfb->base.pitches[plane], plane, block_pitch); 1035 return -EINVAL; 1036 } 1037 if (rfb->base.pitches[plane] < min_pitch) { 1038 drm_dbg_kms(rfb->base.dev, 1039 "pitch %d for plane %d is less than minimum pitch %d\n", 1040 rfb->base.pitches[plane], plane, min_pitch); 1041 return -EINVAL; 1042 } 1043 1044 /* Force at least natural alignment. */ 1045 if (rfb->base.offsets[plane] % block_size) { 1046 drm_dbg_kms(rfb->base.dev, 1047 "offset 0x%x for plane %d is not a multiple of block pitch 0x%x\n", 1048 rfb->base.offsets[plane], plane, block_size); 1049 return -EINVAL; 1050 } 1051 1052 size = rfb->base.offsets[plane] + 1053 (uint64_t)rfb->base.pitches[plane] / block_pitch * 1054 block_size * DIV_ROUND_UP(height, block_height); 1055 1056 if (rfb->base.obj[0]->size < size) { 1057 drm_dbg_kms(rfb->base.dev, 1058 "BO size 0x%zx is less than 0x%llx required for plane %d\n", 1059 rfb->base.obj[0]->size, size, plane); 1060 return -EINVAL; 1061 } 1062 1063 return 0; 1064 } 1065 1066 1067 static int amdgpu_display_verify_sizes(struct amdgpu_framebuffer *rfb) 1068 { 1069 const struct drm_format_info *format_info = drm_format_info(rfb->base.format->format); 1070 uint64_t modifier = rfb->base.modifier; 1071 int ret; 1072 unsigned int i, block_width, block_height, block_size_log2; 1073 1074 if (rfb->base.dev->mode_config.fb_modifiers_not_supported) 1075 return 0; 1076 1077 for (i = 0; i < format_info->num_planes; ++i) { 1078 if (modifier == DRM_FORMAT_MOD_LINEAR) { 1079 block_width = 256 / format_info->cpp[i]; 1080 block_height = 1; 1081 block_size_log2 = 8; 1082 } else { 1083 int swizzle = AMD_FMT_MOD_GET(TILE, modifier); 1084 1085 switch ((swizzle & ~3) + 1) { 1086 case DC_SW_256B_S: 1087 block_size_log2 = 8; 1088 break; 1089 case DC_SW_4KB_S: 1090 case DC_SW_4KB_S_X: 1091 block_size_log2 = 12; 1092 break; 1093 case DC_SW_64KB_S: 1094 case DC_SW_64KB_S_T: 1095 case DC_SW_64KB_S_X: 1096 block_size_log2 = 16; 1097 break; 1098 case DC_SW_VAR_S_X: 1099 block_size_log2 = 18; 1100 break; 1101 default: 1102 drm_dbg_kms(rfb->base.dev, 1103 "Swizzle mode with unknown block size: %d\n", swizzle); 1104 return -EINVAL; 1105 } 1106 1107 get_block_dimensions(block_size_log2, format_info->cpp[i], 1108 &block_width, &block_height); 1109 } 1110 1111 ret = amdgpu_display_verify_plane(rfb, i, format_info, 1112 block_width, block_height, block_size_log2); 1113 if (ret) 1114 return ret; 1115 } 1116 1117 if (AMD_FMT_MOD_GET(DCC, modifier)) { 1118 if (AMD_FMT_MOD_GET(DCC_RETILE, modifier)) { 1119 block_size_log2 = get_dcc_block_size(modifier, false, false); 1120 get_block_dimensions(block_size_log2 + 8, format_info->cpp[0], 1121 &block_width, &block_height); 1122 ret = amdgpu_display_verify_plane(rfb, i, format_info, 1123 block_width, block_height, 1124 block_size_log2); 1125 if (ret) 1126 return ret; 1127 1128 ++i; 1129 block_size_log2 = get_dcc_block_size(modifier, true, true); 1130 } else { 1131 bool pipe_aligned = AMD_FMT_MOD_GET(DCC_PIPE_ALIGN, modifier); 1132 1133 block_size_log2 = get_dcc_block_size(modifier, true, pipe_aligned); 1134 } 1135 get_block_dimensions(block_size_log2 + 8, format_info->cpp[0], 1136 &block_width, &block_height); 1137 ret = amdgpu_display_verify_plane(rfb, i, format_info, 1138 block_width, block_height, block_size_log2); 1139 if (ret) 1140 return ret; 1141 } 1142 1143 return 0; 1144 } 1145 1146 static int amdgpu_display_get_fb_info(const struct amdgpu_framebuffer *amdgpu_fb, 1147 uint64_t *tiling_flags, bool *tmz_surface) 1148 { 1149 struct amdgpu_bo *rbo; 1150 int r; 1151 1152 if (!amdgpu_fb) { 1153 *tiling_flags = 0; 1154 *tmz_surface = false; 1155 return 0; 1156 } 1157 1158 rbo = gem_to_amdgpu_bo(amdgpu_fb->base.obj[0]); 1159 r = amdgpu_bo_reserve(rbo, false); 1160 1161 if (unlikely(r)) { 1162 /* Don't show error message when returning -ERESTARTSYS */ 1163 if (r != -ERESTARTSYS) 1164 DRM_ERROR("Unable to reserve buffer: %d\n", r); 1165 return r; 1166 } 1167 1168 if (tiling_flags) 1169 amdgpu_bo_get_tiling_flags(rbo, tiling_flags); 1170 1171 if (tmz_surface) 1172 *tmz_surface = amdgpu_bo_encrypted(rbo); 1173 1174 amdgpu_bo_unreserve(rbo); 1175 1176 return r; 1177 } 1178 1179 static int amdgpu_display_gem_fb_verify_and_init(struct drm_device *dev, 1180 struct amdgpu_framebuffer *rfb, 1181 struct drm_file *file_priv, 1182 const struct drm_mode_fb_cmd2 *mode_cmd, 1183 struct drm_gem_object *obj) 1184 { 1185 int ret; 1186 1187 rfb->base.obj[0] = obj; 1188 drm_helper_mode_fill_fb_struct(dev, &rfb->base, mode_cmd); 1189 /* Verify that the modifier is supported. */ 1190 if (!drm_any_plane_has_format(dev, mode_cmd->pixel_format, 1191 mode_cmd->modifier[0])) { 1192 drm_dbg_kms(dev, 1193 "unsupported pixel format %p4cc / modifier 0x%llx\n", 1194 &mode_cmd->pixel_format, mode_cmd->modifier[0]); 1195 1196 ret = -EINVAL; 1197 goto err; 1198 } 1199 1200 ret = amdgpu_display_framebuffer_init(dev, rfb, mode_cmd, obj); 1201 if (ret) 1202 goto err; 1203 1204 if (drm_drv_uses_atomic_modeset(dev)) 1205 ret = drm_framebuffer_init(dev, &rfb->base, 1206 &amdgpu_fb_funcs_atomic); 1207 else 1208 ret = drm_framebuffer_init(dev, &rfb->base, &amdgpu_fb_funcs); 1209 1210 if (ret) 1211 goto err; 1212 1213 return 0; 1214 err: 1215 drm_dbg_kms(dev, "Failed to verify and init gem fb: %d\n", ret); 1216 rfb->base.obj[0] = NULL; 1217 return ret; 1218 } 1219 1220 static int amdgpu_display_framebuffer_init(struct drm_device *dev, 1221 struct amdgpu_framebuffer *rfb, 1222 const struct drm_mode_fb_cmd2 *mode_cmd, 1223 struct drm_gem_object *obj) 1224 { 1225 struct amdgpu_device *adev = drm_to_adev(dev); 1226 int ret, i; 1227 1228 /* 1229 * This needs to happen before modifier conversion as that might change 1230 * the number of planes. 1231 */ 1232 for (i = 1; i < rfb->base.format->num_planes; ++i) { 1233 if (mode_cmd->handles[i] != mode_cmd->handles[0]) { 1234 drm_dbg_kms(dev, "Plane 0 and %d have different BOs: %u vs. %u\n", 1235 i, mode_cmd->handles[0], mode_cmd->handles[i]); 1236 ret = -EINVAL; 1237 return ret; 1238 } 1239 } 1240 1241 ret = amdgpu_display_get_fb_info(rfb, &rfb->tiling_flags, &rfb->tmz_surface); 1242 if (ret) 1243 return ret; 1244 1245 if (dev->mode_config.fb_modifiers_not_supported && !adev->enable_virtual_display) { 1246 drm_WARN_ONCE(dev, adev->family >= AMDGPU_FAMILY_AI, 1247 "GFX9+ requires FB check based on format modifier\n"); 1248 ret = check_tiling_flags_gfx6(rfb); 1249 if (ret) 1250 return ret; 1251 } 1252 1253 if (!dev->mode_config.fb_modifiers_not_supported && 1254 !(rfb->base.flags & DRM_MODE_FB_MODIFIERS)) { 1255 ret = convert_tiling_flags_to_modifier(rfb); 1256 if (ret) { 1257 drm_dbg_kms(dev, "Failed to convert tiling flags 0x%llX to a modifier", 1258 rfb->tiling_flags); 1259 return ret; 1260 } 1261 } 1262 1263 ret = amdgpu_display_verify_sizes(rfb); 1264 if (ret) 1265 return ret; 1266 1267 for (i = 0; i < rfb->base.format->num_planes; ++i) { 1268 drm_gem_object_get(rfb->base.obj[0]); 1269 rfb->base.obj[i] = rfb->base.obj[0]; 1270 } 1271 1272 return 0; 1273 } 1274 1275 struct drm_framebuffer * 1276 amdgpu_display_user_framebuffer_create(struct drm_device *dev, 1277 struct drm_file *file_priv, 1278 const struct drm_mode_fb_cmd2 *mode_cmd) 1279 { 1280 struct amdgpu_framebuffer *amdgpu_fb; 1281 struct drm_gem_object *obj; 1282 struct amdgpu_bo *bo; 1283 uint32_t domains; 1284 int ret; 1285 1286 obj = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]); 1287 if (obj == NULL) { 1288 drm_dbg_kms(dev, 1289 "No GEM object associated to handle 0x%08X, can't create framebuffer\n", 1290 mode_cmd->handles[0]); 1291 1292 return ERR_PTR(-ENOENT); 1293 } 1294 1295 /* Handle is imported dma-buf, so cannot be migrated to VRAM for scanout */ 1296 bo = gem_to_amdgpu_bo(obj); 1297 domains = amdgpu_display_supported_domains(drm_to_adev(dev), bo->flags); 1298 if (obj->import_attach && !(domains & AMDGPU_GEM_DOMAIN_GTT)) { 1299 drm_dbg_kms(dev, "Cannot create framebuffer from imported dma_buf\n"); 1300 drm_gem_object_put(obj); 1301 return ERR_PTR(-EINVAL); 1302 } 1303 1304 amdgpu_fb = kzalloc(sizeof(*amdgpu_fb), GFP_KERNEL); 1305 if (amdgpu_fb == NULL) { 1306 drm_gem_object_put(obj); 1307 return ERR_PTR(-ENOMEM); 1308 } 1309 1310 ret = amdgpu_display_gem_fb_verify_and_init(dev, amdgpu_fb, file_priv, 1311 mode_cmd, obj); 1312 if (ret) { 1313 kfree(amdgpu_fb); 1314 drm_gem_object_put(obj); 1315 return ERR_PTR(ret); 1316 } 1317 1318 drm_gem_object_put(obj); 1319 return &amdgpu_fb->base; 1320 } 1321 1322 const struct drm_mode_config_funcs amdgpu_mode_funcs = { 1323 .fb_create = amdgpu_display_user_framebuffer_create, 1324 }; 1325 1326 static const struct drm_prop_enum_list amdgpu_underscan_enum_list[] = { 1327 { UNDERSCAN_OFF, "off" }, 1328 { UNDERSCAN_ON, "on" }, 1329 { UNDERSCAN_AUTO, "auto" }, 1330 }; 1331 1332 static const struct drm_prop_enum_list amdgpu_audio_enum_list[] = { 1333 { AMDGPU_AUDIO_DISABLE, "off" }, 1334 { AMDGPU_AUDIO_ENABLE, "on" }, 1335 { AMDGPU_AUDIO_AUTO, "auto" }, 1336 }; 1337 1338 /* XXX support different dither options? spatial, temporal, both, etc. */ 1339 static const struct drm_prop_enum_list amdgpu_dither_enum_list[] = { 1340 { AMDGPU_FMT_DITHER_DISABLE, "off" }, 1341 { AMDGPU_FMT_DITHER_ENABLE, "on" }, 1342 }; 1343 1344 int amdgpu_display_modeset_create_props(struct amdgpu_device *adev) 1345 { 1346 int sz; 1347 1348 adev->mode_info.coherent_mode_property = 1349 drm_property_create_range(adev_to_drm(adev), 0, "coherent", 0, 1); 1350 if (!adev->mode_info.coherent_mode_property) 1351 return -ENOMEM; 1352 1353 adev->mode_info.load_detect_property = 1354 drm_property_create_range(adev_to_drm(adev), 0, "load detection", 0, 1); 1355 if (!adev->mode_info.load_detect_property) 1356 return -ENOMEM; 1357 1358 drm_mode_create_scaling_mode_property(adev_to_drm(adev)); 1359 1360 sz = ARRAY_SIZE(amdgpu_underscan_enum_list); 1361 adev->mode_info.underscan_property = 1362 drm_property_create_enum(adev_to_drm(adev), 0, 1363 "underscan", 1364 amdgpu_underscan_enum_list, sz); 1365 1366 adev->mode_info.underscan_hborder_property = 1367 drm_property_create_range(adev_to_drm(adev), 0, 1368 "underscan hborder", 0, 128); 1369 if (!adev->mode_info.underscan_hborder_property) 1370 return -ENOMEM; 1371 1372 adev->mode_info.underscan_vborder_property = 1373 drm_property_create_range(adev_to_drm(adev), 0, 1374 "underscan vborder", 0, 128); 1375 if (!adev->mode_info.underscan_vborder_property) 1376 return -ENOMEM; 1377 1378 sz = ARRAY_SIZE(amdgpu_audio_enum_list); 1379 adev->mode_info.audio_property = 1380 drm_property_create_enum(adev_to_drm(adev), 0, 1381 "audio", 1382 amdgpu_audio_enum_list, sz); 1383 1384 sz = ARRAY_SIZE(amdgpu_dither_enum_list); 1385 adev->mode_info.dither_property = 1386 drm_property_create_enum(adev_to_drm(adev), 0, 1387 "dither", 1388 amdgpu_dither_enum_list, sz); 1389 1390 return 0; 1391 } 1392 1393 void amdgpu_display_update_priority(struct amdgpu_device *adev) 1394 { 1395 /* adjustment options for the display watermarks */ 1396 if ((amdgpu_disp_priority == 0) || (amdgpu_disp_priority > 2)) 1397 adev->mode_info.disp_priority = 0; 1398 else 1399 adev->mode_info.disp_priority = amdgpu_disp_priority; 1400 1401 } 1402 1403 static bool amdgpu_display_is_hdtv_mode(const struct drm_display_mode *mode) 1404 { 1405 /* try and guess if this is a tv or a monitor */ 1406 if ((mode->vdisplay == 480 && mode->hdisplay == 720) || /* 480p */ 1407 (mode->vdisplay == 576) || /* 576p */ 1408 (mode->vdisplay == 720) || /* 720p */ 1409 (mode->vdisplay == 1080)) /* 1080p */ 1410 return true; 1411 else 1412 return false; 1413 } 1414 1415 bool amdgpu_display_crtc_scaling_mode_fixup(struct drm_crtc *crtc, 1416 const struct drm_display_mode *mode, 1417 struct drm_display_mode *adjusted_mode) 1418 { 1419 struct drm_device *dev = crtc->dev; 1420 struct drm_encoder *encoder; 1421 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); 1422 struct amdgpu_encoder *amdgpu_encoder; 1423 struct drm_connector *connector; 1424 u32 src_v = 1, dst_v = 1; 1425 u32 src_h = 1, dst_h = 1; 1426 1427 amdgpu_crtc->h_border = 0; 1428 amdgpu_crtc->v_border = 0; 1429 1430 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 1431 if (encoder->crtc != crtc) 1432 continue; 1433 amdgpu_encoder = to_amdgpu_encoder(encoder); 1434 connector = amdgpu_get_connector_for_encoder(encoder); 1435 1436 /* set scaling */ 1437 if (amdgpu_encoder->rmx_type == RMX_OFF) 1438 amdgpu_crtc->rmx_type = RMX_OFF; 1439 else if (mode->hdisplay < amdgpu_encoder->native_mode.hdisplay || 1440 mode->vdisplay < amdgpu_encoder->native_mode.vdisplay) 1441 amdgpu_crtc->rmx_type = amdgpu_encoder->rmx_type; 1442 else 1443 amdgpu_crtc->rmx_type = RMX_OFF; 1444 /* copy native mode */ 1445 memcpy(&amdgpu_crtc->native_mode, 1446 &amdgpu_encoder->native_mode, 1447 sizeof(struct drm_display_mode)); 1448 src_v = crtc->mode.vdisplay; 1449 dst_v = amdgpu_crtc->native_mode.vdisplay; 1450 src_h = crtc->mode.hdisplay; 1451 dst_h = amdgpu_crtc->native_mode.hdisplay; 1452 1453 /* fix up for overscan on hdmi */ 1454 if ((!(mode->flags & DRM_MODE_FLAG_INTERLACE)) && 1455 ((amdgpu_encoder->underscan_type == UNDERSCAN_ON) || 1456 ((amdgpu_encoder->underscan_type == UNDERSCAN_AUTO) && 1457 connector->display_info.is_hdmi && 1458 amdgpu_display_is_hdtv_mode(mode)))) { 1459 if (amdgpu_encoder->underscan_hborder != 0) 1460 amdgpu_crtc->h_border = amdgpu_encoder->underscan_hborder; 1461 else 1462 amdgpu_crtc->h_border = (mode->hdisplay >> 5) + 16; 1463 if (amdgpu_encoder->underscan_vborder != 0) 1464 amdgpu_crtc->v_border = amdgpu_encoder->underscan_vborder; 1465 else 1466 amdgpu_crtc->v_border = (mode->vdisplay >> 5) + 16; 1467 amdgpu_crtc->rmx_type = RMX_FULL; 1468 src_v = crtc->mode.vdisplay; 1469 dst_v = crtc->mode.vdisplay - (amdgpu_crtc->v_border * 2); 1470 src_h = crtc->mode.hdisplay; 1471 dst_h = crtc->mode.hdisplay - (amdgpu_crtc->h_border * 2); 1472 } 1473 } 1474 if (amdgpu_crtc->rmx_type != RMX_OFF) { 1475 fixed20_12 a, b; 1476 1477 a.full = dfixed_const(src_v); 1478 b.full = dfixed_const(dst_v); 1479 amdgpu_crtc->vsc.full = dfixed_div(a, b); 1480 a.full = dfixed_const(src_h); 1481 b.full = dfixed_const(dst_h); 1482 amdgpu_crtc->hsc.full = dfixed_div(a, b); 1483 } else { 1484 amdgpu_crtc->vsc.full = dfixed_const(1); 1485 amdgpu_crtc->hsc.full = dfixed_const(1); 1486 } 1487 return true; 1488 } 1489 1490 /* 1491 * Retrieve current video scanout position of crtc on a given gpu, and 1492 * an optional accurate timestamp of when query happened. 1493 * 1494 * \param dev Device to query. 1495 * \param pipe Crtc to query. 1496 * \param flags from caller (DRM_CALLED_FROM_VBLIRQ or 0). 1497 * For driver internal use only also supports these flags: 1498 * 1499 * USE_REAL_VBLANKSTART to use the real start of vblank instead 1500 * of a fudged earlier start of vblank. 1501 * 1502 * GET_DISTANCE_TO_VBLANKSTART to return distance to the 1503 * fudged earlier start of vblank in *vpos and the distance 1504 * to true start of vblank in *hpos. 1505 * 1506 * \param *vpos Location where vertical scanout position should be stored. 1507 * \param *hpos Location where horizontal scanout position should go. 1508 * \param *stime Target location for timestamp taken immediately before 1509 * scanout position query. Can be NULL to skip timestamp. 1510 * \param *etime Target location for timestamp taken immediately after 1511 * scanout position query. Can be NULL to skip timestamp. 1512 * 1513 * Returns vpos as a positive number while in active scanout area. 1514 * Returns vpos as a negative number inside vblank, counting the number 1515 * of scanlines to go until end of vblank, e.g., -1 means "one scanline 1516 * until start of active scanout / end of vblank." 1517 * 1518 * \return Flags, or'ed together as follows: 1519 * 1520 * DRM_SCANOUTPOS_VALID = Query successful. 1521 * DRM_SCANOUTPOS_INVBL = Inside vblank. 1522 * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of 1523 * this flag means that returned position may be offset by a constant but 1524 * unknown small number of scanlines wrt. real scanout position. 1525 * 1526 */ 1527 int amdgpu_display_get_crtc_scanoutpos(struct drm_device *dev, 1528 unsigned int pipe, unsigned int flags, int *vpos, 1529 int *hpos, ktime_t *stime, ktime_t *etime, 1530 const struct drm_display_mode *mode) 1531 { 1532 u32 vbl = 0, position = 0; 1533 int vbl_start, vbl_end, vtotal, ret = 0; 1534 bool in_vbl = true; 1535 1536 struct amdgpu_device *adev = drm_to_adev(dev); 1537 1538 /* preempt_disable_rt() should go right here in PREEMPT_RT patchset. */ 1539 1540 /* Get optional system timestamp before query. */ 1541 if (stime) 1542 *stime = ktime_get(); 1543 1544 if (amdgpu_display_page_flip_get_scanoutpos(adev, pipe, &vbl, &position) == 0) 1545 ret |= DRM_SCANOUTPOS_VALID; 1546 1547 /* Get optional system timestamp after query. */ 1548 if (etime) 1549 *etime = ktime_get(); 1550 1551 /* preempt_enable_rt() should go right here in PREEMPT_RT patchset. */ 1552 1553 /* Decode into vertical and horizontal scanout position. */ 1554 *vpos = position & 0x1fff; 1555 *hpos = (position >> 16) & 0x1fff; 1556 1557 /* Valid vblank area boundaries from gpu retrieved? */ 1558 if (vbl > 0) { 1559 /* Yes: Decode. */ 1560 ret |= DRM_SCANOUTPOS_ACCURATE; 1561 vbl_start = vbl & 0x1fff; 1562 vbl_end = (vbl >> 16) & 0x1fff; 1563 } else { 1564 /* No: Fake something reasonable which gives at least ok results. */ 1565 vbl_start = mode->crtc_vdisplay; 1566 vbl_end = 0; 1567 } 1568 1569 /* Called from driver internal vblank counter query code? */ 1570 if (flags & GET_DISTANCE_TO_VBLANKSTART) { 1571 /* Caller wants distance from real vbl_start in *hpos */ 1572 *hpos = *vpos - vbl_start; 1573 } 1574 1575 /* Fudge vblank to start a few scanlines earlier to handle the 1576 * problem that vblank irqs fire a few scanlines before start 1577 * of vblank. Some driver internal callers need the true vblank 1578 * start to be used and signal this via the USE_REAL_VBLANKSTART flag. 1579 * 1580 * The cause of the "early" vblank irq is that the irq is triggered 1581 * by the line buffer logic when the line buffer read position enters 1582 * the vblank, whereas our crtc scanout position naturally lags the 1583 * line buffer read position. 1584 */ 1585 if (!(flags & USE_REAL_VBLANKSTART)) 1586 vbl_start -= adev->mode_info.crtcs[pipe]->lb_vblank_lead_lines; 1587 1588 /* Test scanout position against vblank region. */ 1589 if ((*vpos < vbl_start) && (*vpos >= vbl_end)) 1590 in_vbl = false; 1591 1592 /* In vblank? */ 1593 if (in_vbl) 1594 ret |= DRM_SCANOUTPOS_IN_VBLANK; 1595 1596 /* Called from driver internal vblank counter query code? */ 1597 if (flags & GET_DISTANCE_TO_VBLANKSTART) { 1598 /* Caller wants distance from fudged earlier vbl_start */ 1599 *vpos -= vbl_start; 1600 return ret; 1601 } 1602 1603 /* Check if inside vblank area and apply corrective offsets: 1604 * vpos will then be >=0 in video scanout area, but negative 1605 * within vblank area, counting down the number of lines until 1606 * start of scanout. 1607 */ 1608 1609 /* Inside "upper part" of vblank area? Apply corrective offset if so: */ 1610 if (in_vbl && (*vpos >= vbl_start)) { 1611 vtotal = mode->crtc_vtotal; 1612 1613 /* With variable refresh rate displays the vpos can exceed 1614 * the vtotal value. Clamp to 0 to return -vbl_end instead 1615 * of guessing the remaining number of lines until scanout. 1616 */ 1617 *vpos = (*vpos < vtotal) ? (*vpos - vtotal) : 0; 1618 } 1619 1620 /* Correct for shifted end of vbl at vbl_end. */ 1621 *vpos = *vpos - vbl_end; 1622 1623 return ret; 1624 } 1625 1626 int amdgpu_display_crtc_idx_to_irq_type(struct amdgpu_device *adev, int crtc) 1627 { 1628 if (crtc < 0 || crtc >= adev->mode_info.num_crtc) 1629 return AMDGPU_CRTC_IRQ_NONE; 1630 1631 switch (crtc) { 1632 case 0: 1633 return AMDGPU_CRTC_IRQ_VBLANK1; 1634 case 1: 1635 return AMDGPU_CRTC_IRQ_VBLANK2; 1636 case 2: 1637 return AMDGPU_CRTC_IRQ_VBLANK3; 1638 case 3: 1639 return AMDGPU_CRTC_IRQ_VBLANK4; 1640 case 4: 1641 return AMDGPU_CRTC_IRQ_VBLANK5; 1642 case 5: 1643 return AMDGPU_CRTC_IRQ_VBLANK6; 1644 default: 1645 return AMDGPU_CRTC_IRQ_NONE; 1646 } 1647 } 1648 1649 bool amdgpu_crtc_get_scanout_position(struct drm_crtc *crtc, 1650 bool in_vblank_irq, int *vpos, 1651 int *hpos, ktime_t *stime, ktime_t *etime, 1652 const struct drm_display_mode *mode) 1653 { 1654 struct drm_device *dev = crtc->dev; 1655 unsigned int pipe = crtc->index; 1656 1657 return amdgpu_display_get_crtc_scanoutpos(dev, pipe, 0, vpos, hpos, 1658 stime, etime, mode); 1659 } 1660 1661 static bool 1662 amdgpu_display_robj_is_fb(struct amdgpu_device *adev, struct amdgpu_bo *robj) 1663 { 1664 struct drm_device *dev = adev_to_drm(adev); 1665 struct drm_fb_helper *fb_helper = dev->fb_helper; 1666 1667 if (!fb_helper || !fb_helper->buffer) 1668 return false; 1669 1670 if (gem_to_amdgpu_bo(fb_helper->buffer->gem) != robj) 1671 return false; 1672 1673 return true; 1674 } 1675 1676 int amdgpu_display_suspend_helper(struct amdgpu_device *adev) 1677 { 1678 struct drm_device *dev = adev_to_drm(adev); 1679 struct drm_crtc *crtc; 1680 struct drm_connector *connector; 1681 struct drm_connector_list_iter iter; 1682 int r; 1683 1684 drm_kms_helper_poll_disable(dev); 1685 1686 /* turn off display hw */ 1687 drm_modeset_lock_all(dev); 1688 drm_connector_list_iter_begin(dev, &iter); 1689 drm_for_each_connector_iter(connector, &iter) 1690 drm_helper_connector_dpms(connector, 1691 DRM_MODE_DPMS_OFF); 1692 drm_connector_list_iter_end(&iter); 1693 drm_modeset_unlock_all(dev); 1694 /* unpin the front buffers and cursors */ 1695 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 1696 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); 1697 struct drm_framebuffer *fb = crtc->primary->fb; 1698 struct amdgpu_bo *robj; 1699 1700 if (amdgpu_crtc->cursor_bo && !adev->enable_virtual_display) { 1701 struct amdgpu_bo *aobj = gem_to_amdgpu_bo(amdgpu_crtc->cursor_bo); 1702 1703 r = amdgpu_bo_reserve(aobj, true); 1704 if (r == 0) { 1705 amdgpu_bo_unpin(aobj); 1706 amdgpu_bo_unreserve(aobj); 1707 } 1708 } 1709 1710 if (!fb || !fb->obj[0]) 1711 continue; 1712 1713 robj = gem_to_amdgpu_bo(fb->obj[0]); 1714 if (!amdgpu_display_robj_is_fb(adev, robj)) { 1715 r = amdgpu_bo_reserve(robj, true); 1716 if (r == 0) { 1717 amdgpu_bo_unpin(robj); 1718 amdgpu_bo_unreserve(robj); 1719 } 1720 } 1721 } 1722 return 0; 1723 } 1724 1725 int amdgpu_display_resume_helper(struct amdgpu_device *adev) 1726 { 1727 struct drm_device *dev = adev_to_drm(adev); 1728 struct drm_connector *connector; 1729 struct drm_connector_list_iter iter; 1730 struct drm_crtc *crtc; 1731 int r; 1732 1733 /* pin cursors */ 1734 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 1735 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); 1736 1737 if (amdgpu_crtc->cursor_bo && !adev->enable_virtual_display) { 1738 struct amdgpu_bo *aobj = gem_to_amdgpu_bo(amdgpu_crtc->cursor_bo); 1739 1740 r = amdgpu_bo_reserve(aobj, true); 1741 if (r == 0) { 1742 r = amdgpu_bo_pin(aobj, AMDGPU_GEM_DOMAIN_VRAM); 1743 if (r != 0) 1744 dev_err(adev->dev, "Failed to pin cursor BO (%d)\n", r); 1745 amdgpu_crtc->cursor_addr = amdgpu_bo_gpu_offset(aobj); 1746 amdgpu_bo_unreserve(aobj); 1747 } 1748 } 1749 } 1750 1751 drm_helper_resume_force_mode(dev); 1752 1753 /* turn on display hw */ 1754 drm_modeset_lock_all(dev); 1755 1756 drm_connector_list_iter_begin(dev, &iter); 1757 drm_for_each_connector_iter(connector, &iter) 1758 drm_helper_connector_dpms(connector, 1759 DRM_MODE_DPMS_ON); 1760 drm_connector_list_iter_end(&iter); 1761 1762 drm_modeset_unlock_all(dev); 1763 1764 drm_kms_helper_poll_enable(dev); 1765 1766 return 0; 1767 } 1768 1769