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 "bif/bif_4_1_d.h" 37 #include <asm/div64.h> 38 39 #include <linux/pci.h> 40 #include <linux/pm_runtime.h> 41 #include <drm/drm_crtc_helper.h> 42 #include <drm/drm_damage_helper.h> 43 #include <drm/drm_drv.h> 44 #include <drm/drm_edid.h> 45 #include <drm/drm_fb_helper.h> 46 #include <drm/drm_gem_framebuffer_helper.h> 47 #include <drm/drm_fourcc.h> 48 #include <drm/drm_modeset_helper.h> 49 #include <drm/drm_vblank.h> 50 51 /** 52 * amdgpu_display_hotplug_work_func - work handler for display hotplug event 53 * 54 * @work: work struct pointer 55 * 56 * This is the hotplug event work handler (all ASICs). 57 * The work gets scheduled from the IRQ handler if there 58 * was a hotplug interrupt. It walks through the connector table 59 * and calls hotplug handler for each connector. After this, it sends 60 * a DRM hotplug event to alert userspace. 61 * 62 * This design approach is required in order to defer hotplug event handling 63 * from the IRQ handler to a work handler because hotplug handler has to use 64 * mutexes which cannot be locked in an IRQ handler (since &mutex_lock may 65 * sleep). 66 */ 67 void amdgpu_display_hotplug_work_func(struct work_struct *work) 68 { 69 struct amdgpu_device *adev = container_of(work, struct amdgpu_device, 70 hotplug_work.work); 71 struct drm_device *dev = adev_to_drm(adev); 72 struct drm_mode_config *mode_config = &dev->mode_config; 73 struct drm_connector *connector; 74 struct drm_connector_list_iter iter; 75 76 mutex_lock(&mode_config->mutex); 77 drm_connector_list_iter_begin(dev, &iter); 78 drm_for_each_connector_iter(connector, &iter) 79 amdgpu_connector_hotplug(connector); 80 drm_connector_list_iter_end(&iter); 81 mutex_unlock(&mode_config->mutex); 82 /* Just fire off a uevent and let userspace tell us what to do */ 83 drm_helper_hpd_irq_event(dev); 84 } 85 86 static int amdgpu_display_framebuffer_init(struct drm_device *dev, 87 struct amdgpu_framebuffer *rfb, 88 const struct drm_mode_fb_cmd2 *mode_cmd, 89 struct drm_gem_object *obj); 90 91 static void amdgpu_display_flip_callback(struct dma_fence *f, 92 struct dma_fence_cb *cb) 93 { 94 struct amdgpu_flip_work *work = 95 container_of(cb, struct amdgpu_flip_work, cb); 96 97 dma_fence_put(f); 98 schedule_work(&work->flip_work.work); 99 } 100 101 static bool amdgpu_display_flip_handle_fence(struct amdgpu_flip_work *work, 102 struct dma_fence **f) 103 { 104 struct dma_fence *fence = *f; 105 106 if (fence == NULL) 107 return false; 108 109 *f = NULL; 110 111 if (!dma_fence_add_callback(fence, &work->cb, 112 amdgpu_display_flip_callback)) 113 return true; 114 115 dma_fence_put(fence); 116 return false; 117 } 118 119 static void amdgpu_display_flip_work_func(struct work_struct *__work) 120 { 121 struct delayed_work *delayed_work = 122 container_of(__work, struct delayed_work, work); 123 struct amdgpu_flip_work *work = 124 container_of(delayed_work, struct amdgpu_flip_work, flip_work); 125 struct amdgpu_device *adev = work->adev; 126 struct amdgpu_crtc *amdgpu_crtc = adev->mode_info.crtcs[work->crtc_id]; 127 128 struct drm_crtc *crtc = &amdgpu_crtc->base; 129 unsigned long flags; 130 unsigned int i; 131 int vpos, hpos; 132 133 for (i = 0; i < work->shared_count; ++i) 134 if (amdgpu_display_flip_handle_fence(work, &work->shared[i])) 135 return; 136 137 /* Wait until we're out of the vertical blank period before the one 138 * targeted by the flip 139 */ 140 if (amdgpu_crtc->enabled && 141 (amdgpu_display_get_crtc_scanoutpos(adev_to_drm(adev), work->crtc_id, 0, 142 &vpos, &hpos, NULL, NULL, 143 &crtc->hwmode) 144 & (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_IN_VBLANK)) == 145 (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_IN_VBLANK) && 146 (int)(work->target_vblank - 147 amdgpu_get_vblank_counter_kms(crtc)) > 0) { 148 schedule_delayed_work(&work->flip_work, usecs_to_jiffies(1000)); 149 return; 150 } 151 152 /* We borrow the event spin lock for protecting flip_status */ 153 spin_lock_irqsave(&crtc->dev->event_lock, flags); 154 155 /* Do the flip (mmio) */ 156 adev->mode_info.funcs->page_flip(adev, work->crtc_id, work->base, work->async); 157 158 /* Set the flip status */ 159 amdgpu_crtc->pflip_status = AMDGPU_FLIP_SUBMITTED; 160 spin_unlock_irqrestore(&crtc->dev->event_lock, flags); 161 162 163 drm_dbg_vbl(adev_to_drm(adev), 164 "crtc:%d[%p], pflip_stat:AMDGPU_FLIP_SUBMITTED, work: %p,\n", 165 amdgpu_crtc->crtc_id, amdgpu_crtc, work); 166 167 } 168 169 /* 170 * Handle unpin events outside the interrupt handler proper. 171 */ 172 static void amdgpu_display_unpin_work_func(struct work_struct *__work) 173 { 174 struct amdgpu_flip_work *work = 175 container_of(__work, struct amdgpu_flip_work, unpin_work); 176 int r; 177 178 /* unpin of the old buffer */ 179 r = amdgpu_bo_reserve(work->old_abo, true); 180 if (likely(r == 0)) { 181 amdgpu_bo_unpin(work->old_abo); 182 amdgpu_bo_unreserve(work->old_abo); 183 } else 184 DRM_ERROR("failed to reserve buffer after flip\n"); 185 186 amdgpu_bo_unref(&work->old_abo); 187 kfree(work->shared); 188 kfree(work); 189 } 190 191 int amdgpu_display_crtc_page_flip_target(struct drm_crtc *crtc, 192 struct drm_framebuffer *fb, 193 struct drm_pending_vblank_event *event, 194 uint32_t page_flip_flags, uint32_t target, 195 struct drm_modeset_acquire_ctx *ctx) 196 { 197 struct drm_device *dev = crtc->dev; 198 struct amdgpu_device *adev = drm_to_adev(dev); 199 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); 200 struct drm_gem_object *obj; 201 struct amdgpu_flip_work *work; 202 struct amdgpu_bo *new_abo; 203 unsigned long flags; 204 u64 tiling_flags; 205 int i, r; 206 207 work = kzalloc(sizeof(*work), GFP_KERNEL); 208 if (work == NULL) 209 return -ENOMEM; 210 211 INIT_DELAYED_WORK(&work->flip_work, amdgpu_display_flip_work_func); 212 INIT_WORK(&work->unpin_work, amdgpu_display_unpin_work_func); 213 214 work->event = event; 215 work->adev = adev; 216 work->crtc_id = amdgpu_crtc->crtc_id; 217 work->async = (page_flip_flags & DRM_MODE_PAGE_FLIP_ASYNC) != 0; 218 219 /* schedule unpin of the old buffer */ 220 obj = crtc->primary->fb->obj[0]; 221 222 /* take a reference to the old object */ 223 work->old_abo = gem_to_amdgpu_bo(obj); 224 amdgpu_bo_ref(work->old_abo); 225 226 obj = fb->obj[0]; 227 new_abo = gem_to_amdgpu_bo(obj); 228 229 /* pin the new buffer */ 230 r = amdgpu_bo_reserve(new_abo, false); 231 if (unlikely(r != 0)) { 232 DRM_ERROR("failed to reserve new abo buffer before flip\n"); 233 goto cleanup; 234 } 235 236 if (!adev->enable_virtual_display) { 237 new_abo->flags |= AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS; 238 r = amdgpu_bo_pin(new_abo, 239 amdgpu_display_supported_domains(adev, new_abo->flags)); 240 if (unlikely(r != 0)) { 241 DRM_ERROR("failed to pin new abo buffer before flip\n"); 242 goto unreserve; 243 } 244 } 245 246 r = amdgpu_ttm_alloc_gart(&new_abo->tbo); 247 if (unlikely(r != 0)) { 248 DRM_ERROR("%p bind failed\n", new_abo); 249 goto unpin; 250 } 251 252 r = dma_resv_get_fences(new_abo->tbo.base.resv, DMA_RESV_USAGE_WRITE, 253 &work->shared_count, 254 &work->shared); 255 if (unlikely(r != 0)) { 256 DRM_ERROR("failed to get fences for buffer\n"); 257 goto unpin; 258 } 259 260 amdgpu_bo_get_tiling_flags(new_abo, &tiling_flags); 261 amdgpu_bo_unreserve(new_abo); 262 263 if (!adev->enable_virtual_display) 264 work->base = amdgpu_bo_gpu_offset(new_abo); 265 work->target_vblank = target - (uint32_t)drm_crtc_vblank_count(crtc) + 266 amdgpu_get_vblank_counter_kms(crtc); 267 268 /* we borrow the event spin lock for protecting flip_wrok */ 269 spin_lock_irqsave(&crtc->dev->event_lock, flags); 270 if (amdgpu_crtc->pflip_status != AMDGPU_FLIP_NONE) { 271 DRM_DEBUG_DRIVER("flip queue: crtc already busy\n"); 272 spin_unlock_irqrestore(&crtc->dev->event_lock, flags); 273 r = -EBUSY; 274 goto pflip_cleanup; 275 } 276 277 amdgpu_crtc->pflip_status = AMDGPU_FLIP_PENDING; 278 amdgpu_crtc->pflip_works = work; 279 280 281 DRM_DEBUG_DRIVER("crtc:%d[%p], pflip_stat:AMDGPU_FLIP_PENDING, work: %p,\n", 282 amdgpu_crtc->crtc_id, amdgpu_crtc, work); 283 /* update crtc fb */ 284 crtc->primary->fb = fb; 285 spin_unlock_irqrestore(&crtc->dev->event_lock, flags); 286 amdgpu_display_flip_work_func(&work->flip_work.work); 287 return 0; 288 289 pflip_cleanup: 290 if (unlikely(amdgpu_bo_reserve(new_abo, false) != 0)) { 291 DRM_ERROR("failed to reserve new abo in error path\n"); 292 goto cleanup; 293 } 294 unpin: 295 if (!adev->enable_virtual_display) 296 amdgpu_bo_unpin(new_abo); 297 298 unreserve: 299 amdgpu_bo_unreserve(new_abo); 300 301 cleanup: 302 amdgpu_bo_unref(&work->old_abo); 303 for (i = 0; i < work->shared_count; ++i) 304 dma_fence_put(work->shared[i]); 305 kfree(work->shared); 306 kfree(work); 307 308 return r; 309 } 310 311 int amdgpu_display_crtc_set_config(struct drm_mode_set *set, 312 struct drm_modeset_acquire_ctx *ctx) 313 { 314 struct drm_device *dev; 315 struct amdgpu_device *adev; 316 struct drm_crtc *crtc; 317 bool active = false; 318 int ret; 319 320 if (!set || !set->crtc) 321 return -EINVAL; 322 323 dev = set->crtc->dev; 324 325 ret = pm_runtime_get_sync(dev->dev); 326 if (ret < 0) 327 goto out; 328 329 ret = drm_crtc_helper_set_config(set, ctx); 330 331 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) 332 if (crtc->enabled) 333 active = true; 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(TILE_VERSION, modifier) < AMD_FMT_MOD_TILE_VER_GFX9 || 658 AMD_FMT_MOD_GET(TILE_VERSION, modifier) >= AMD_FMT_MOD_TILE_VER_GFX12) 659 return NULL; 660 661 if (AMD_FMT_MOD_GET(DCC_RETILE, modifier)) 662 return lookup_format_info(dcc_retile_formats, 663 ARRAY_SIZE(dcc_retile_formats), 664 format); 665 666 if (AMD_FMT_MOD_GET(DCC, modifier)) 667 return lookup_format_info(dcc_formats, ARRAY_SIZE(dcc_formats), 668 format); 669 670 /* returning NULL will cause the default format structs to be used. */ 671 return NULL; 672 } 673 674 675 /* 676 * Tries to extract the renderable DCC offset from the opaque metadata attached 677 * to the buffer. 678 */ 679 static int 680 extract_render_dcc_offset(struct amdgpu_device *adev, 681 struct drm_gem_object *obj, 682 uint64_t *offset) 683 { 684 struct amdgpu_bo *rbo; 685 int r = 0; 686 uint32_t metadata[10]; /* Something that fits a descriptor + header. */ 687 uint32_t size; 688 689 rbo = gem_to_amdgpu_bo(obj); 690 r = amdgpu_bo_reserve(rbo, false); 691 692 if (unlikely(r)) { 693 /* Don't show error message when returning -ERESTARTSYS */ 694 if (r != -ERESTARTSYS) 695 DRM_ERROR("Unable to reserve buffer: %d\n", r); 696 return r; 697 } 698 699 r = amdgpu_bo_get_metadata(rbo, metadata, sizeof(metadata), &size, NULL); 700 amdgpu_bo_unreserve(rbo); 701 702 if (r) 703 return r; 704 705 /* 706 * The first word is the metadata version, and we need space for at least 707 * the version + pci vendor+device id + 8 words for a descriptor. 708 */ 709 if (size < 40 || metadata[0] != 1) 710 return -EINVAL; 711 712 if (adev->family >= AMDGPU_FAMILY_NV) { 713 /* resource word 6/7 META_DATA_ADDRESS{_LO} */ 714 *offset = ((u64)metadata[9] << 16u) | 715 ((metadata[8] & 0xFF000000u) >> 16); 716 } else { 717 /* resource word 5/7 META_DATA_ADDRESS */ 718 *offset = ((u64)metadata[9] << 8u) | 719 ((u64)(metadata[7] & 0x1FE0000u) << 23); 720 } 721 722 return 0; 723 } 724 725 static int convert_tiling_flags_to_modifier_gfx12(struct amdgpu_framebuffer *afb) 726 { 727 u64 modifier = 0; 728 int swizzle_mode = AMDGPU_TILING_GET(afb->tiling_flags, GFX12_SWIZZLE_MODE); 729 730 if (!swizzle_mode) { 731 modifier = DRM_FORMAT_MOD_LINEAR; 732 } else { 733 int max_comp_block = 734 AMDGPU_TILING_GET(afb->tiling_flags, GFX12_DCC_MAX_COMPRESSED_BLOCK); 735 736 modifier = 737 AMD_FMT_MOD | 738 AMD_FMT_MOD_SET(TILE_VERSION, AMD_FMT_MOD_TILE_VER_GFX12) | 739 AMD_FMT_MOD_SET(TILE, swizzle_mode) | 740 AMD_FMT_MOD_SET(DCC, afb->gfx12_dcc) | 741 AMD_FMT_MOD_SET(DCC_MAX_COMPRESSED_BLOCK, max_comp_block); 742 } 743 744 afb->base.modifier = modifier; 745 afb->base.flags |= DRM_MODE_FB_MODIFIERS; 746 return 0; 747 } 748 749 static int convert_tiling_flags_to_modifier(struct amdgpu_framebuffer *afb) 750 { 751 struct amdgpu_device *adev = drm_to_adev(afb->base.dev); 752 uint64_t modifier = 0; 753 int num_pipes = 0; 754 int num_pkrs = 0; 755 756 num_pkrs = adev->gfx.config.gb_addr_config_fields.num_pkrs; 757 num_pipes = adev->gfx.config.gb_addr_config_fields.num_pipes; 758 759 if (!afb->tiling_flags || !AMDGPU_TILING_GET(afb->tiling_flags, SWIZZLE_MODE)) { 760 modifier = DRM_FORMAT_MOD_LINEAR; 761 } else { 762 int swizzle = AMDGPU_TILING_GET(afb->tiling_flags, SWIZZLE_MODE); 763 bool has_xor = swizzle >= 16; 764 int block_size_bits; 765 int version; 766 int pipe_xor_bits = 0; 767 int bank_xor_bits = 0; 768 int packers = 0; 769 int rb = 0; 770 int pipes = ilog2(num_pipes); 771 uint32_t dcc_offset = AMDGPU_TILING_GET(afb->tiling_flags, DCC_OFFSET_256B); 772 773 switch (swizzle >> 2) { 774 case 0: /* 256B */ 775 block_size_bits = 8; 776 break; 777 case 1: /* 4KiB */ 778 case 5: /* 4KiB _X */ 779 block_size_bits = 12; 780 break; 781 case 2: /* 64KiB */ 782 case 4: /* 64 KiB _T */ 783 case 6: /* 64 KiB _X */ 784 block_size_bits = 16; 785 break; 786 case 7: /* 256 KiB */ 787 block_size_bits = 18; 788 break; 789 default: 790 /* RESERVED or VAR */ 791 return -EINVAL; 792 } 793 794 if (amdgpu_ip_version(adev, GC_HWIP, 0) >= IP_VERSION(11, 0, 0)) 795 version = AMD_FMT_MOD_TILE_VER_GFX11; 796 else if (amdgpu_ip_version(adev, GC_HWIP, 0) >= 797 IP_VERSION(10, 3, 0)) 798 version = AMD_FMT_MOD_TILE_VER_GFX10_RBPLUS; 799 else if (amdgpu_ip_version(adev, GC_HWIP, 0) >= 800 IP_VERSION(10, 0, 0)) 801 version = AMD_FMT_MOD_TILE_VER_GFX10; 802 else 803 version = AMD_FMT_MOD_TILE_VER_GFX9; 804 805 switch (swizzle & 3) { 806 case 0: /* Z microtiling */ 807 return -EINVAL; 808 case 1: /* S microtiling */ 809 if (amdgpu_ip_version(adev, GC_HWIP, 0) < 810 IP_VERSION(11, 0, 0)) { 811 if (!has_xor) 812 version = AMD_FMT_MOD_TILE_VER_GFX9; 813 } 814 break; 815 case 2: 816 if (amdgpu_ip_version(adev, GC_HWIP, 0) < 817 IP_VERSION(11, 0, 0)) { 818 if (!has_xor && afb->base.format->cpp[0] != 4) 819 version = AMD_FMT_MOD_TILE_VER_GFX9; 820 } 821 break; 822 case 3: 823 break; 824 } 825 826 if (has_xor) { 827 if (num_pipes == num_pkrs && num_pkrs == 0) { 828 DRM_ERROR("invalid number of pipes and packers\n"); 829 return -EINVAL; 830 } 831 832 switch (version) { 833 case AMD_FMT_MOD_TILE_VER_GFX11: 834 pipe_xor_bits = min(block_size_bits - 8, pipes); 835 packers = ilog2(adev->gfx.config.gb_addr_config_fields.num_pkrs); 836 break; 837 case AMD_FMT_MOD_TILE_VER_GFX10_RBPLUS: 838 pipe_xor_bits = min(block_size_bits - 8, pipes); 839 packers = min(block_size_bits - 8 - pipe_xor_bits, 840 ilog2(adev->gfx.config.gb_addr_config_fields.num_pkrs)); 841 break; 842 case AMD_FMT_MOD_TILE_VER_GFX10: 843 pipe_xor_bits = min(block_size_bits - 8, pipes); 844 break; 845 case AMD_FMT_MOD_TILE_VER_GFX9: 846 rb = ilog2(adev->gfx.config.gb_addr_config_fields.num_se) + 847 ilog2(adev->gfx.config.gb_addr_config_fields.num_rb_per_se); 848 pipe_xor_bits = min(block_size_bits - 8, pipes + 849 ilog2(adev->gfx.config.gb_addr_config_fields.num_se)); 850 bank_xor_bits = min(block_size_bits - 8 - pipe_xor_bits, 851 ilog2(adev->gfx.config.gb_addr_config_fields.num_banks)); 852 break; 853 } 854 } 855 856 modifier = AMD_FMT_MOD | 857 AMD_FMT_MOD_SET(TILE, AMDGPU_TILING_GET(afb->tiling_flags, SWIZZLE_MODE)) | 858 AMD_FMT_MOD_SET(TILE_VERSION, version) | 859 AMD_FMT_MOD_SET(PIPE_XOR_BITS, pipe_xor_bits) | 860 AMD_FMT_MOD_SET(BANK_XOR_BITS, bank_xor_bits) | 861 AMD_FMT_MOD_SET(PACKERS, packers); 862 863 if (dcc_offset != 0) { 864 bool dcc_i64b = AMDGPU_TILING_GET(afb->tiling_flags, DCC_INDEPENDENT_64B) != 0; 865 bool dcc_i128b = version >= AMD_FMT_MOD_TILE_VER_GFX10_RBPLUS; 866 const struct drm_format_info *format_info; 867 u64 render_dcc_offset; 868 869 /* Enable constant encode on RAVEN2 and later. */ 870 bool dcc_constant_encode = 871 (adev->asic_type > CHIP_RAVEN || 872 (adev->asic_type == CHIP_RAVEN && 873 adev->external_rev_id >= 0x81)) && 874 amdgpu_ip_version(adev, GC_HWIP, 0) < 875 IP_VERSION(11, 0, 0); 876 877 int max_cblock_size = dcc_i64b ? AMD_FMT_MOD_DCC_BLOCK_64B : 878 dcc_i128b ? AMD_FMT_MOD_DCC_BLOCK_128B : 879 AMD_FMT_MOD_DCC_BLOCK_256B; 880 881 modifier |= AMD_FMT_MOD_SET(DCC, 1) | 882 AMD_FMT_MOD_SET(DCC_CONSTANT_ENCODE, dcc_constant_encode) | 883 AMD_FMT_MOD_SET(DCC_INDEPENDENT_64B, dcc_i64b) | 884 AMD_FMT_MOD_SET(DCC_INDEPENDENT_128B, dcc_i128b) | 885 AMD_FMT_MOD_SET(DCC_MAX_COMPRESSED_BLOCK, max_cblock_size); 886 887 afb->base.offsets[1] = dcc_offset * 256 + afb->base.offsets[0]; 888 afb->base.pitches[1] = 889 AMDGPU_TILING_GET(afb->tiling_flags, DCC_PITCH_MAX) + 1; 890 891 /* 892 * If the userspace driver uses retiling the tiling flags do not contain 893 * info on the renderable DCC buffer. Luckily the opaque metadata contains 894 * the info so we can try to extract it. The kernel does not use this info 895 * but we should convert it to a modifier plane for getfb2, so the 896 * userspace driver that gets it doesn't have to juggle around another DCC 897 * plane internally. 898 */ 899 if (extract_render_dcc_offset(adev, afb->base.obj[0], 900 &render_dcc_offset) == 0 && 901 render_dcc_offset != 0 && 902 render_dcc_offset != afb->base.offsets[1] && 903 render_dcc_offset < UINT_MAX) { 904 uint32_t dcc_block_bits; /* of base surface data */ 905 906 modifier |= AMD_FMT_MOD_SET(DCC_RETILE, 1); 907 afb->base.offsets[2] = render_dcc_offset; 908 909 if (adev->family >= AMDGPU_FAMILY_NV) { 910 int extra_pipe = 0; 911 912 if ((amdgpu_ip_version(adev, GC_HWIP, 913 0) >= 914 IP_VERSION(10, 3, 0)) && 915 pipes == packers && pipes > 1) 916 extra_pipe = 1; 917 918 dcc_block_bits = max(20, 16 + pipes + extra_pipe); 919 } else { 920 modifier |= AMD_FMT_MOD_SET(RB, rb) | 921 AMD_FMT_MOD_SET(PIPE, pipes); 922 dcc_block_bits = max(20, 18 + rb); 923 } 924 925 dcc_block_bits -= ilog2(afb->base.format->cpp[0]); 926 afb->base.pitches[2] = ALIGN(afb->base.width, 927 1u << ((dcc_block_bits + 1) / 2)); 928 } 929 format_info = amdgpu_lookup_format_info(afb->base.format->format, 930 modifier); 931 if (!format_info) 932 return -EINVAL; 933 934 afb->base.format = format_info; 935 } 936 } 937 938 afb->base.modifier = modifier; 939 afb->base.flags |= DRM_MODE_FB_MODIFIERS; 940 return 0; 941 } 942 943 /* Mirrors the is_displayable check in radeonsi's gfx6_compute_surface */ 944 static int check_tiling_flags_gfx6(struct amdgpu_framebuffer *afb) 945 { 946 u64 micro_tile_mode; 947 948 if (AMDGPU_TILING_GET(afb->tiling_flags, ARRAY_MODE) == 1) /* LINEAR_ALIGNED */ 949 return 0; 950 951 micro_tile_mode = AMDGPU_TILING_GET(afb->tiling_flags, MICRO_TILE_MODE); 952 switch (micro_tile_mode) { 953 case 0: /* DISPLAY */ 954 case 3: /* RENDER */ 955 return 0; 956 default: 957 drm_dbg_kms(afb->base.dev, 958 "Micro tile mode %llu not supported for scanout\n", 959 micro_tile_mode); 960 return -EINVAL; 961 } 962 } 963 964 static void get_block_dimensions(unsigned int block_log2, unsigned int cpp, 965 unsigned int *width, unsigned int *height) 966 { 967 unsigned int cpp_log2 = ilog2(cpp); 968 unsigned int pixel_log2 = block_log2 - cpp_log2; 969 unsigned int width_log2 = (pixel_log2 + 1) / 2; 970 unsigned int height_log2 = pixel_log2 - width_log2; 971 972 *width = 1 << width_log2; 973 *height = 1 << height_log2; 974 } 975 976 static unsigned int get_dcc_block_size(uint64_t modifier, bool rb_aligned, 977 bool pipe_aligned) 978 { 979 unsigned int ver = AMD_FMT_MOD_GET(TILE_VERSION, modifier); 980 981 switch (ver) { 982 case AMD_FMT_MOD_TILE_VER_GFX9: { 983 /* 984 * TODO: for pipe aligned we may need to check the alignment of the 985 * total size of the surface, which may need to be bigger than the 986 * natural alignment due to some HW workarounds 987 */ 988 return max(10 + (rb_aligned ? (int)AMD_FMT_MOD_GET(RB, modifier) : 0), 12); 989 } 990 case AMD_FMT_MOD_TILE_VER_GFX10: 991 case AMD_FMT_MOD_TILE_VER_GFX10_RBPLUS: 992 case AMD_FMT_MOD_TILE_VER_GFX11: { 993 int pipes_log2 = AMD_FMT_MOD_GET(PIPE_XOR_BITS, modifier); 994 995 if (ver >= AMD_FMT_MOD_TILE_VER_GFX10_RBPLUS && pipes_log2 > 1 && 996 AMD_FMT_MOD_GET(PACKERS, modifier) == pipes_log2) 997 ++pipes_log2; 998 999 return max(8 + (pipe_aligned ? pipes_log2 : 0), 12); 1000 } 1001 default: 1002 return 0; 1003 } 1004 } 1005 1006 static int amdgpu_display_verify_plane(struct amdgpu_framebuffer *rfb, int plane, 1007 const struct drm_format_info *format, 1008 unsigned int block_width, unsigned int block_height, 1009 unsigned int block_size_log2) 1010 { 1011 unsigned int width = rfb->base.width / 1012 ((plane && plane < format->num_planes) ? format->hsub : 1); 1013 unsigned int height = rfb->base.height / 1014 ((plane && plane < format->num_planes) ? format->vsub : 1); 1015 unsigned int cpp = plane < format->num_planes ? format->cpp[plane] : 1; 1016 unsigned int block_pitch = block_width * cpp; 1017 unsigned int min_pitch = ALIGN(width * cpp, block_pitch); 1018 unsigned int block_size = 1 << block_size_log2; 1019 uint64_t size; 1020 1021 if (rfb->base.pitches[plane] % block_pitch) { 1022 drm_dbg_kms(rfb->base.dev, 1023 "pitch %d for plane %d is not a multiple of block pitch %d\n", 1024 rfb->base.pitches[plane], plane, block_pitch); 1025 return -EINVAL; 1026 } 1027 if (rfb->base.pitches[plane] < min_pitch) { 1028 drm_dbg_kms(rfb->base.dev, 1029 "pitch %d for plane %d is less than minimum pitch %d\n", 1030 rfb->base.pitches[plane], plane, min_pitch); 1031 return -EINVAL; 1032 } 1033 1034 /* Force at least natural alignment. */ 1035 if (rfb->base.offsets[plane] % block_size) { 1036 drm_dbg_kms(rfb->base.dev, 1037 "offset 0x%x for plane %d is not a multiple of block pitch 0x%x\n", 1038 rfb->base.offsets[plane], plane, block_size); 1039 return -EINVAL; 1040 } 1041 1042 size = rfb->base.offsets[plane] + 1043 (uint64_t)rfb->base.pitches[plane] / block_pitch * 1044 block_size * DIV_ROUND_UP(height, block_height); 1045 1046 if (rfb->base.obj[0]->size < size) { 1047 drm_dbg_kms(rfb->base.dev, 1048 "BO size 0x%zx is less than 0x%llx required for plane %d\n", 1049 rfb->base.obj[0]->size, size, plane); 1050 return -EINVAL; 1051 } 1052 1053 return 0; 1054 } 1055 1056 1057 static int amdgpu_display_verify_sizes(struct amdgpu_framebuffer *rfb) 1058 { 1059 const struct drm_format_info *format_info = drm_format_info(rfb->base.format->format); 1060 uint64_t modifier = rfb->base.modifier; 1061 int ret; 1062 unsigned int i, block_width, block_height, block_size_log2; 1063 1064 if (rfb->base.dev->mode_config.fb_modifiers_not_supported) 1065 return 0; 1066 1067 for (i = 0; i < format_info->num_planes; ++i) { 1068 if (modifier == DRM_FORMAT_MOD_LINEAR) { 1069 block_width = 256 / format_info->cpp[i]; 1070 block_height = 1; 1071 block_size_log2 = 8; 1072 } else if (AMD_FMT_MOD_GET(TILE_VERSION, modifier) >= AMD_FMT_MOD_TILE_VER_GFX12) { 1073 int swizzle = AMD_FMT_MOD_GET(TILE, modifier); 1074 1075 switch (swizzle) { 1076 case AMD_FMT_MOD_TILE_GFX12_256B_2D: 1077 block_size_log2 = 8; 1078 break; 1079 case AMD_FMT_MOD_TILE_GFX12_4K_2D: 1080 block_size_log2 = 12; 1081 break; 1082 case AMD_FMT_MOD_TILE_GFX12_64K_2D: 1083 block_size_log2 = 16; 1084 break; 1085 case AMD_FMT_MOD_TILE_GFX12_256K_2D: 1086 block_size_log2 = 18; 1087 break; 1088 default: 1089 drm_dbg_kms(rfb->base.dev, 1090 "Gfx12 swizzle mode with unknown block size: %d\n", swizzle); 1091 return -EINVAL; 1092 } 1093 1094 get_block_dimensions(block_size_log2, format_info->cpp[i], 1095 &block_width, &block_height); 1096 } else { 1097 int swizzle = AMD_FMT_MOD_GET(TILE, modifier); 1098 1099 switch ((swizzle & ~3) + 1) { 1100 case DC_SW_256B_S: 1101 block_size_log2 = 8; 1102 break; 1103 case DC_SW_4KB_S: 1104 case DC_SW_4KB_S_X: 1105 block_size_log2 = 12; 1106 break; 1107 case DC_SW_64KB_S: 1108 case DC_SW_64KB_S_T: 1109 case DC_SW_64KB_S_X: 1110 block_size_log2 = 16; 1111 break; 1112 case DC_SW_VAR_S_X: 1113 block_size_log2 = 18; 1114 break; 1115 default: 1116 drm_dbg_kms(rfb->base.dev, 1117 "Swizzle mode with unknown block size: %d\n", swizzle); 1118 return -EINVAL; 1119 } 1120 1121 get_block_dimensions(block_size_log2, format_info->cpp[i], 1122 &block_width, &block_height); 1123 } 1124 1125 ret = amdgpu_display_verify_plane(rfb, i, format_info, 1126 block_width, block_height, block_size_log2); 1127 if (ret) 1128 return ret; 1129 } 1130 1131 if (AMD_FMT_MOD_GET(TILE_VERSION, modifier) <= AMD_FMT_MOD_TILE_VER_GFX11 && 1132 AMD_FMT_MOD_GET(DCC, modifier)) { 1133 if (AMD_FMT_MOD_GET(DCC_RETILE, modifier)) { 1134 block_size_log2 = get_dcc_block_size(modifier, false, false); 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, 1139 block_size_log2); 1140 if (ret) 1141 return ret; 1142 1143 ++i; 1144 block_size_log2 = get_dcc_block_size(modifier, true, true); 1145 } else { 1146 bool pipe_aligned = AMD_FMT_MOD_GET(DCC_PIPE_ALIGN, modifier); 1147 1148 block_size_log2 = get_dcc_block_size(modifier, true, pipe_aligned); 1149 } 1150 get_block_dimensions(block_size_log2 + 8, format_info->cpp[0], 1151 &block_width, &block_height); 1152 ret = amdgpu_display_verify_plane(rfb, i, format_info, 1153 block_width, block_height, block_size_log2); 1154 if (ret) 1155 return ret; 1156 } 1157 1158 return 0; 1159 } 1160 1161 static int amdgpu_display_get_fb_info(const struct amdgpu_framebuffer *amdgpu_fb, 1162 uint64_t *tiling_flags, bool *tmz_surface, 1163 bool *gfx12_dcc) 1164 { 1165 struct amdgpu_bo *rbo; 1166 int r; 1167 1168 if (!amdgpu_fb) { 1169 *tiling_flags = 0; 1170 *tmz_surface = false; 1171 *gfx12_dcc = false; 1172 return 0; 1173 } 1174 1175 rbo = gem_to_amdgpu_bo(amdgpu_fb->base.obj[0]); 1176 r = amdgpu_bo_reserve(rbo, false); 1177 1178 if (unlikely(r)) { 1179 /* Don't show error message when returning -ERESTARTSYS */ 1180 if (r != -ERESTARTSYS) 1181 DRM_ERROR("Unable to reserve buffer: %d\n", r); 1182 return r; 1183 } 1184 1185 amdgpu_bo_get_tiling_flags(rbo, tiling_flags); 1186 *tmz_surface = amdgpu_bo_encrypted(rbo); 1187 *gfx12_dcc = rbo->flags & AMDGPU_GEM_CREATE_GFX12_DCC; 1188 1189 amdgpu_bo_unreserve(rbo); 1190 1191 return r; 1192 } 1193 1194 static int amdgpu_display_gem_fb_verify_and_init(struct drm_device *dev, 1195 struct amdgpu_framebuffer *rfb, 1196 struct drm_file *file_priv, 1197 const struct drm_format_info *info, 1198 const struct drm_mode_fb_cmd2 *mode_cmd, 1199 struct drm_gem_object *obj) 1200 { 1201 int ret; 1202 1203 rfb->base.obj[0] = obj; 1204 drm_helper_mode_fill_fb_struct(dev, &rfb->base, info, mode_cmd); 1205 /* Verify that the modifier is supported. */ 1206 if (!drm_any_plane_has_format(dev, mode_cmd->pixel_format, 1207 mode_cmd->modifier[0])) { 1208 drm_dbg_kms(dev, 1209 "unsupported pixel format %p4cc / modifier 0x%llx\n", 1210 &mode_cmd->pixel_format, mode_cmd->modifier[0]); 1211 1212 ret = -EINVAL; 1213 goto err; 1214 } 1215 1216 ret = amdgpu_display_framebuffer_init(dev, rfb, mode_cmd, obj); 1217 if (ret) 1218 goto err; 1219 1220 if (drm_drv_uses_atomic_modeset(dev)) 1221 ret = drm_framebuffer_init(dev, &rfb->base, 1222 &amdgpu_fb_funcs_atomic); 1223 else 1224 ret = drm_framebuffer_init(dev, &rfb->base, &amdgpu_fb_funcs); 1225 1226 if (ret) 1227 goto err; 1228 1229 return 0; 1230 err: 1231 drm_dbg_kms(dev, "Failed to verify and init gem fb: %d\n", ret); 1232 rfb->base.obj[0] = NULL; 1233 return ret; 1234 } 1235 1236 static int amdgpu_display_framebuffer_init(struct drm_device *dev, 1237 struct amdgpu_framebuffer *rfb, 1238 const struct drm_mode_fb_cmd2 *mode_cmd, 1239 struct drm_gem_object *obj) 1240 { 1241 struct amdgpu_device *adev = drm_to_adev(dev); 1242 int ret, i; 1243 1244 /* 1245 * This needs to happen before modifier conversion as that might change 1246 * the number of planes. 1247 */ 1248 for (i = 1; i < rfb->base.format->num_planes; ++i) { 1249 if (mode_cmd->handles[i] != mode_cmd->handles[0]) { 1250 drm_dbg_kms(dev, "Plane 0 and %d have different BOs: %u vs. %u\n", 1251 i, mode_cmd->handles[0], mode_cmd->handles[i]); 1252 ret = -EINVAL; 1253 return ret; 1254 } 1255 } 1256 1257 ret = amdgpu_display_get_fb_info(rfb, &rfb->tiling_flags, &rfb->tmz_surface, 1258 &rfb->gfx12_dcc); 1259 if (ret) 1260 return ret; 1261 1262 if (dev->mode_config.fb_modifiers_not_supported && !adev->enable_virtual_display) { 1263 drm_WARN_ONCE(dev, adev->family >= AMDGPU_FAMILY_AI, 1264 "GFX9+ requires FB check based on format modifier\n"); 1265 ret = check_tiling_flags_gfx6(rfb); 1266 if (ret) 1267 return ret; 1268 } 1269 1270 if (!dev->mode_config.fb_modifiers_not_supported && 1271 !(rfb->base.flags & DRM_MODE_FB_MODIFIERS)) { 1272 if (amdgpu_ip_version(adev, GC_HWIP, 0) >= IP_VERSION(12, 0, 0)) 1273 ret = convert_tiling_flags_to_modifier_gfx12(rfb); 1274 else 1275 ret = convert_tiling_flags_to_modifier(rfb); 1276 1277 if (ret) { 1278 drm_dbg_kms(dev, "Failed to convert tiling flags 0x%llX to a modifier", 1279 rfb->tiling_flags); 1280 return ret; 1281 } 1282 } 1283 1284 ret = amdgpu_display_verify_sizes(rfb); 1285 if (ret) 1286 return ret; 1287 1288 for (i = 0; i < rfb->base.format->num_planes; ++i) { 1289 drm_gem_object_get(rfb->base.obj[0]); 1290 rfb->base.obj[i] = rfb->base.obj[0]; 1291 } 1292 1293 return 0; 1294 } 1295 1296 struct drm_framebuffer * 1297 amdgpu_display_user_framebuffer_create(struct drm_device *dev, 1298 struct drm_file *file_priv, 1299 const struct drm_format_info *info, 1300 const struct drm_mode_fb_cmd2 *mode_cmd) 1301 { 1302 struct amdgpu_framebuffer *amdgpu_fb; 1303 struct drm_gem_object *obj; 1304 struct amdgpu_bo *bo; 1305 uint32_t domains; 1306 int ret; 1307 1308 obj = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]); 1309 if (obj == NULL) { 1310 drm_dbg_kms(dev, 1311 "No GEM object associated to handle 0x%08X, can't create framebuffer\n", 1312 mode_cmd->handles[0]); 1313 1314 return ERR_PTR(-ENOENT); 1315 } 1316 1317 /* Handle is imported dma-buf, so cannot be migrated to VRAM for scanout */ 1318 bo = gem_to_amdgpu_bo(obj); 1319 domains = amdgpu_display_supported_domains(drm_to_adev(dev), bo->flags); 1320 if (drm_gem_is_imported(obj) && !(domains & AMDGPU_GEM_DOMAIN_GTT)) { 1321 drm_dbg_kms(dev, "Cannot create framebuffer from imported dma_buf\n"); 1322 drm_gem_object_put(obj); 1323 return ERR_PTR(-EINVAL); 1324 } 1325 1326 amdgpu_fb = kzalloc(sizeof(*amdgpu_fb), GFP_KERNEL); 1327 if (amdgpu_fb == NULL) { 1328 drm_gem_object_put(obj); 1329 return ERR_PTR(-ENOMEM); 1330 } 1331 1332 ret = amdgpu_display_gem_fb_verify_and_init(dev, amdgpu_fb, file_priv, 1333 info, mode_cmd, obj); 1334 if (ret) { 1335 kfree(amdgpu_fb); 1336 drm_gem_object_put(obj); 1337 return ERR_PTR(ret); 1338 } 1339 1340 drm_gem_object_put(obj); 1341 return &amdgpu_fb->base; 1342 } 1343 1344 const struct drm_mode_config_funcs amdgpu_mode_funcs = { 1345 .fb_create = amdgpu_display_user_framebuffer_create, 1346 }; 1347 1348 static const struct drm_prop_enum_list amdgpu_underscan_enum_list[] = { 1349 { UNDERSCAN_OFF, "off" }, 1350 { UNDERSCAN_ON, "on" }, 1351 { UNDERSCAN_AUTO, "auto" }, 1352 }; 1353 1354 static const struct drm_prop_enum_list amdgpu_audio_enum_list[] = { 1355 { AMDGPU_AUDIO_DISABLE, "off" }, 1356 { AMDGPU_AUDIO_ENABLE, "on" }, 1357 { AMDGPU_AUDIO_AUTO, "auto" }, 1358 }; 1359 1360 /* XXX support different dither options? spatial, temporal, both, etc. */ 1361 static const struct drm_prop_enum_list amdgpu_dither_enum_list[] = { 1362 { AMDGPU_FMT_DITHER_DISABLE, "off" }, 1363 { AMDGPU_FMT_DITHER_ENABLE, "on" }, 1364 }; 1365 1366 /** 1367 * DOC: property for adaptive backlight modulation 1368 * 1369 * The 'adaptive backlight modulation' property is used for the compositor to 1370 * directly control the adaptive backlight modulation power savings feature 1371 * that is part of DCN hardware. 1372 * 1373 * The property will be attached specifically to eDP panels that support it. 1374 * 1375 * The property is by default set to 'sysfs' to allow the sysfs file 'panel_power_savings' 1376 * to be able to control it. 1377 * If set to 'off' the compositor will ensure it stays off. 1378 * The other values 'min', 'bias min', 'bias max', and 'max' will control the 1379 * intensity of the power savings. 1380 * 1381 * Modifying this value can have implications on color accuracy, so tread 1382 * carefully. 1383 */ 1384 static int amdgpu_display_setup_abm_prop(struct amdgpu_device *adev) 1385 { 1386 const struct drm_prop_enum_list props[] = { 1387 { ABM_SYSFS_CONTROL, "sysfs" }, 1388 { ABM_LEVEL_OFF, "off" }, 1389 { ABM_LEVEL_MIN, "min" }, 1390 { ABM_LEVEL_BIAS_MIN, "bias min" }, 1391 { ABM_LEVEL_BIAS_MAX, "bias max" }, 1392 { ABM_LEVEL_MAX, "max" }, 1393 }; 1394 struct drm_property *prop; 1395 int i; 1396 1397 if (!adev->dc_enabled) 1398 return 0; 1399 1400 prop = drm_property_create(adev_to_drm(adev), DRM_MODE_PROP_ENUM, 1401 "adaptive backlight modulation", 1402 6); 1403 if (!prop) 1404 return -ENOMEM; 1405 1406 for (i = 0; i < ARRAY_SIZE(props); i++) { 1407 int ret; 1408 1409 ret = drm_property_add_enum(prop, props[i].type, 1410 props[i].name); 1411 1412 if (ret) { 1413 drm_property_destroy(adev_to_drm(adev), prop); 1414 1415 return ret; 1416 } 1417 } 1418 1419 adev->mode_info.abm_level_property = prop; 1420 1421 return 0; 1422 } 1423 1424 int amdgpu_display_modeset_create_props(struct amdgpu_device *adev) 1425 { 1426 int sz; 1427 1428 adev->mode_info.coherent_mode_property = 1429 drm_property_create_range(adev_to_drm(adev), 0, "coherent", 0, 1); 1430 if (!adev->mode_info.coherent_mode_property) 1431 return -ENOMEM; 1432 1433 adev->mode_info.load_detect_property = 1434 drm_property_create_range(adev_to_drm(adev), 0, "load detection", 0, 1); 1435 if (!adev->mode_info.load_detect_property) 1436 return -ENOMEM; 1437 1438 drm_mode_create_scaling_mode_property(adev_to_drm(adev)); 1439 1440 sz = ARRAY_SIZE(amdgpu_underscan_enum_list); 1441 adev->mode_info.underscan_property = 1442 drm_property_create_enum(adev_to_drm(adev), 0, 1443 "underscan", 1444 amdgpu_underscan_enum_list, sz); 1445 1446 adev->mode_info.underscan_hborder_property = 1447 drm_property_create_range(adev_to_drm(adev), 0, 1448 "underscan hborder", 0, 128); 1449 if (!adev->mode_info.underscan_hborder_property) 1450 return -ENOMEM; 1451 1452 adev->mode_info.underscan_vborder_property = 1453 drm_property_create_range(adev_to_drm(adev), 0, 1454 "underscan vborder", 0, 128); 1455 if (!adev->mode_info.underscan_vborder_property) 1456 return -ENOMEM; 1457 1458 sz = ARRAY_SIZE(amdgpu_audio_enum_list); 1459 adev->mode_info.audio_property = 1460 drm_property_create_enum(adev_to_drm(adev), 0, 1461 "audio", 1462 amdgpu_audio_enum_list, sz); 1463 1464 sz = ARRAY_SIZE(amdgpu_dither_enum_list); 1465 adev->mode_info.dither_property = 1466 drm_property_create_enum(adev_to_drm(adev), 0, 1467 "dither", 1468 amdgpu_dither_enum_list, sz); 1469 1470 return amdgpu_display_setup_abm_prop(adev); 1471 } 1472 1473 void amdgpu_display_update_priority(struct amdgpu_device *adev) 1474 { 1475 /* adjustment options for the display watermarks */ 1476 if ((amdgpu_disp_priority == 0) || (amdgpu_disp_priority > 2)) 1477 adev->mode_info.disp_priority = 0; 1478 else 1479 adev->mode_info.disp_priority = amdgpu_disp_priority; 1480 1481 } 1482 1483 static bool amdgpu_display_is_hdtv_mode(const struct drm_display_mode *mode) 1484 { 1485 /* try and guess if this is a tv or a monitor */ 1486 if ((mode->vdisplay == 480 && mode->hdisplay == 720) || /* 480p */ 1487 (mode->vdisplay == 576) || /* 576p */ 1488 (mode->vdisplay == 720) || /* 720p */ 1489 (mode->vdisplay == 1080)) /* 1080p */ 1490 return true; 1491 else 1492 return false; 1493 } 1494 1495 bool amdgpu_display_crtc_scaling_mode_fixup(struct drm_crtc *crtc, 1496 const struct drm_display_mode *mode, 1497 struct drm_display_mode *adjusted_mode) 1498 { 1499 struct drm_device *dev = crtc->dev; 1500 struct drm_encoder *encoder; 1501 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); 1502 struct amdgpu_encoder *amdgpu_encoder; 1503 struct drm_connector *connector; 1504 u32 src_v = 1, dst_v = 1; 1505 u32 src_h = 1, dst_h = 1; 1506 1507 amdgpu_crtc->h_border = 0; 1508 amdgpu_crtc->v_border = 0; 1509 1510 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 1511 if (encoder->crtc != crtc) 1512 continue; 1513 amdgpu_encoder = to_amdgpu_encoder(encoder); 1514 connector = amdgpu_get_connector_for_encoder(encoder); 1515 1516 /* set scaling */ 1517 if (amdgpu_encoder->rmx_type == RMX_OFF) 1518 amdgpu_crtc->rmx_type = RMX_OFF; 1519 else if (mode->hdisplay < amdgpu_encoder->native_mode.hdisplay || 1520 mode->vdisplay < amdgpu_encoder->native_mode.vdisplay) 1521 amdgpu_crtc->rmx_type = amdgpu_encoder->rmx_type; 1522 else 1523 amdgpu_crtc->rmx_type = RMX_OFF; 1524 /* copy native mode */ 1525 memcpy(&amdgpu_crtc->native_mode, 1526 &amdgpu_encoder->native_mode, 1527 sizeof(struct drm_display_mode)); 1528 src_v = crtc->mode.vdisplay; 1529 dst_v = amdgpu_crtc->native_mode.vdisplay; 1530 src_h = crtc->mode.hdisplay; 1531 dst_h = amdgpu_crtc->native_mode.hdisplay; 1532 1533 /* fix up for overscan on hdmi */ 1534 if ((!(mode->flags & DRM_MODE_FLAG_INTERLACE)) && 1535 ((amdgpu_encoder->underscan_type == UNDERSCAN_ON) || 1536 ((amdgpu_encoder->underscan_type == UNDERSCAN_AUTO) && 1537 connector && connector->display_info.is_hdmi && 1538 amdgpu_display_is_hdtv_mode(mode)))) { 1539 if (amdgpu_encoder->underscan_hborder != 0) 1540 amdgpu_crtc->h_border = amdgpu_encoder->underscan_hborder; 1541 else 1542 amdgpu_crtc->h_border = (mode->hdisplay >> 5) + 16; 1543 if (amdgpu_encoder->underscan_vborder != 0) 1544 amdgpu_crtc->v_border = amdgpu_encoder->underscan_vborder; 1545 else 1546 amdgpu_crtc->v_border = (mode->vdisplay >> 5) + 16; 1547 amdgpu_crtc->rmx_type = RMX_FULL; 1548 src_v = crtc->mode.vdisplay; 1549 dst_v = crtc->mode.vdisplay - (amdgpu_crtc->v_border * 2); 1550 src_h = crtc->mode.hdisplay; 1551 dst_h = crtc->mode.hdisplay - (amdgpu_crtc->h_border * 2); 1552 } 1553 } 1554 if (amdgpu_crtc->rmx_type != RMX_OFF) { 1555 fixed20_12 a, b; 1556 1557 a.full = dfixed_const(src_v); 1558 b.full = dfixed_const(dst_v); 1559 amdgpu_crtc->vsc.full = dfixed_div(a, b); 1560 a.full = dfixed_const(src_h); 1561 b.full = dfixed_const(dst_h); 1562 amdgpu_crtc->hsc.full = dfixed_div(a, b); 1563 } else { 1564 amdgpu_crtc->vsc.full = dfixed_const(1); 1565 amdgpu_crtc->hsc.full = dfixed_const(1); 1566 } 1567 return true; 1568 } 1569 1570 /* 1571 * Retrieve current video scanout position of crtc on a given gpu, and 1572 * an optional accurate timestamp of when query happened. 1573 * 1574 * \param dev Device to query. 1575 * \param pipe Crtc to query. 1576 * \param flags from caller (DRM_CALLED_FROM_VBLIRQ or 0). 1577 * For driver internal use only also supports these flags: 1578 * 1579 * USE_REAL_VBLANKSTART to use the real start of vblank instead 1580 * of a fudged earlier start of vblank. 1581 * 1582 * GET_DISTANCE_TO_VBLANKSTART to return distance to the 1583 * fudged earlier start of vblank in *vpos and the distance 1584 * to true start of vblank in *hpos. 1585 * 1586 * \param *vpos Location where vertical scanout position should be stored. 1587 * \param *hpos Location where horizontal scanout position should go. 1588 * \param *stime Target location for timestamp taken immediately before 1589 * scanout position query. Can be NULL to skip timestamp. 1590 * \param *etime Target location for timestamp taken immediately after 1591 * scanout position query. Can be NULL to skip timestamp. 1592 * 1593 * Returns vpos as a positive number while in active scanout area. 1594 * Returns vpos as a negative number inside vblank, counting the number 1595 * of scanlines to go until end of vblank, e.g., -1 means "one scanline 1596 * until start of active scanout / end of vblank." 1597 * 1598 * \return Flags, or'ed together as follows: 1599 * 1600 * DRM_SCANOUTPOS_VALID = Query successful. 1601 * DRM_SCANOUTPOS_INVBL = Inside vblank. 1602 * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of 1603 * this flag means that returned position may be offset by a constant but 1604 * unknown small number of scanlines wrt. real scanout position. 1605 * 1606 */ 1607 int amdgpu_display_get_crtc_scanoutpos(struct drm_device *dev, 1608 unsigned int pipe, unsigned int flags, int *vpos, 1609 int *hpos, ktime_t *stime, ktime_t *etime, 1610 const struct drm_display_mode *mode) 1611 { 1612 u32 vbl = 0, position = 0; 1613 int vbl_start, vbl_end, vtotal, ret = 0; 1614 bool in_vbl = true; 1615 1616 struct amdgpu_device *adev = drm_to_adev(dev); 1617 1618 /* preempt_disable_rt() should go right here in PREEMPT_RT patchset. */ 1619 1620 /* Get optional system timestamp before query. */ 1621 if (stime) 1622 *stime = ktime_get(); 1623 1624 if (amdgpu_display_page_flip_get_scanoutpos(adev, pipe, &vbl, &position) == 0) 1625 ret |= DRM_SCANOUTPOS_VALID; 1626 1627 /* Get optional system timestamp after query. */ 1628 if (etime) 1629 *etime = ktime_get(); 1630 1631 /* preempt_enable_rt() should go right here in PREEMPT_RT patchset. */ 1632 1633 /* Decode into vertical and horizontal scanout position. */ 1634 *vpos = position & 0x1fff; 1635 *hpos = (position >> 16) & 0x1fff; 1636 1637 /* Valid vblank area boundaries from gpu retrieved? */ 1638 if (vbl > 0) { 1639 /* Yes: Decode. */ 1640 ret |= DRM_SCANOUTPOS_ACCURATE; 1641 vbl_start = vbl & 0x1fff; 1642 vbl_end = (vbl >> 16) & 0x1fff; 1643 } else { 1644 /* No: Fake something reasonable which gives at least ok results. */ 1645 vbl_start = mode->crtc_vdisplay; 1646 vbl_end = 0; 1647 } 1648 1649 /* Called from driver internal vblank counter query code? */ 1650 if (flags & GET_DISTANCE_TO_VBLANKSTART) { 1651 /* Caller wants distance from real vbl_start in *hpos */ 1652 *hpos = *vpos - vbl_start; 1653 } 1654 1655 /* Fudge vblank to start a few scanlines earlier to handle the 1656 * problem that vblank irqs fire a few scanlines before start 1657 * of vblank. Some driver internal callers need the true vblank 1658 * start to be used and signal this via the USE_REAL_VBLANKSTART flag. 1659 * 1660 * The cause of the "early" vblank irq is that the irq is triggered 1661 * by the line buffer logic when the line buffer read position enters 1662 * the vblank, whereas our crtc scanout position naturally lags the 1663 * line buffer read position. 1664 */ 1665 if (!(flags & USE_REAL_VBLANKSTART)) 1666 vbl_start -= adev->mode_info.crtcs[pipe]->lb_vblank_lead_lines; 1667 1668 /* Test scanout position against vblank region. */ 1669 if ((*vpos < vbl_start) && (*vpos >= vbl_end)) 1670 in_vbl = false; 1671 1672 /* In vblank? */ 1673 if (in_vbl) 1674 ret |= DRM_SCANOUTPOS_IN_VBLANK; 1675 1676 /* Called from driver internal vblank counter query code? */ 1677 if (flags & GET_DISTANCE_TO_VBLANKSTART) { 1678 /* Caller wants distance from fudged earlier vbl_start */ 1679 *vpos -= vbl_start; 1680 return ret; 1681 } 1682 1683 /* Check if inside vblank area and apply corrective offsets: 1684 * vpos will then be >=0 in video scanout area, but negative 1685 * within vblank area, counting down the number of lines until 1686 * start of scanout. 1687 */ 1688 1689 /* Inside "upper part" of vblank area? Apply corrective offset if so: */ 1690 if (in_vbl && (*vpos >= vbl_start)) { 1691 vtotal = mode->crtc_vtotal; 1692 1693 /* With variable refresh rate displays the vpos can exceed 1694 * the vtotal value. Clamp to 0 to return -vbl_end instead 1695 * of guessing the remaining number of lines until scanout. 1696 */ 1697 *vpos = (*vpos < vtotal) ? (*vpos - vtotal) : 0; 1698 } 1699 1700 /* Correct for shifted end of vbl at vbl_end. */ 1701 *vpos = *vpos - vbl_end; 1702 1703 return ret; 1704 } 1705 1706 int amdgpu_display_crtc_idx_to_irq_type(struct amdgpu_device *adev, int crtc) 1707 { 1708 if (crtc < 0 || crtc >= adev->mode_info.num_crtc) 1709 return AMDGPU_CRTC_IRQ_NONE; 1710 1711 switch (crtc) { 1712 case 0: 1713 return AMDGPU_CRTC_IRQ_VBLANK1; 1714 case 1: 1715 return AMDGPU_CRTC_IRQ_VBLANK2; 1716 case 2: 1717 return AMDGPU_CRTC_IRQ_VBLANK3; 1718 case 3: 1719 return AMDGPU_CRTC_IRQ_VBLANK4; 1720 case 4: 1721 return AMDGPU_CRTC_IRQ_VBLANK5; 1722 case 5: 1723 return AMDGPU_CRTC_IRQ_VBLANK6; 1724 default: 1725 return AMDGPU_CRTC_IRQ_NONE; 1726 } 1727 } 1728 1729 bool amdgpu_crtc_get_scanout_position(struct drm_crtc *crtc, 1730 bool in_vblank_irq, int *vpos, 1731 int *hpos, ktime_t *stime, ktime_t *etime, 1732 const struct drm_display_mode *mode) 1733 { 1734 struct drm_device *dev = crtc->dev; 1735 unsigned int pipe = crtc->index; 1736 1737 return amdgpu_display_get_crtc_scanoutpos(dev, pipe, 0, vpos, hpos, 1738 stime, etime, mode); 1739 } 1740 1741 static bool 1742 amdgpu_display_robj_is_fb(struct amdgpu_device *adev, struct amdgpu_bo *robj) 1743 { 1744 struct drm_device *dev = adev_to_drm(adev); 1745 struct drm_fb_helper *fb_helper = dev->fb_helper; 1746 1747 if (!fb_helper || !fb_helper->buffer) 1748 return false; 1749 1750 if (gem_to_amdgpu_bo(fb_helper->buffer->gem) != robj) 1751 return false; 1752 1753 return true; 1754 } 1755 1756 int amdgpu_display_suspend_helper(struct amdgpu_device *adev) 1757 { 1758 struct drm_device *dev = adev_to_drm(adev); 1759 struct drm_crtc *crtc; 1760 struct drm_connector *connector; 1761 struct drm_connector_list_iter iter; 1762 int r; 1763 1764 drm_kms_helper_poll_disable(dev); 1765 1766 /* turn off display hw */ 1767 drm_modeset_lock_all(dev); 1768 drm_connector_list_iter_begin(dev, &iter); 1769 drm_for_each_connector_iter(connector, &iter) 1770 drm_helper_connector_dpms(connector, 1771 DRM_MODE_DPMS_OFF); 1772 drm_connector_list_iter_end(&iter); 1773 drm_modeset_unlock_all(dev); 1774 /* unpin the front buffers and cursors */ 1775 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 1776 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); 1777 struct drm_framebuffer *fb = crtc->primary->fb; 1778 struct amdgpu_bo *robj; 1779 1780 if (amdgpu_crtc->cursor_bo && !adev->enable_virtual_display) { 1781 struct amdgpu_bo *aobj = gem_to_amdgpu_bo(amdgpu_crtc->cursor_bo); 1782 1783 r = amdgpu_bo_reserve(aobj, true); 1784 if (r == 0) { 1785 amdgpu_bo_unpin(aobj); 1786 amdgpu_bo_unreserve(aobj); 1787 } 1788 } 1789 1790 if (!fb || !fb->obj[0]) 1791 continue; 1792 1793 robj = gem_to_amdgpu_bo(fb->obj[0]); 1794 if (!amdgpu_display_robj_is_fb(adev, robj)) { 1795 r = amdgpu_bo_reserve(robj, true); 1796 if (r == 0) { 1797 amdgpu_bo_unpin(robj); 1798 amdgpu_bo_unreserve(robj); 1799 } 1800 } 1801 } 1802 return 0; 1803 } 1804 1805 int amdgpu_display_resume_helper(struct amdgpu_device *adev) 1806 { 1807 struct drm_device *dev = adev_to_drm(adev); 1808 struct drm_connector *connector; 1809 struct drm_connector_list_iter iter; 1810 struct drm_crtc *crtc; 1811 int r; 1812 1813 /* pin cursors */ 1814 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 1815 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); 1816 1817 if (amdgpu_crtc->cursor_bo && !adev->enable_virtual_display) { 1818 struct amdgpu_bo *aobj = gem_to_amdgpu_bo(amdgpu_crtc->cursor_bo); 1819 1820 r = amdgpu_bo_reserve(aobj, true); 1821 if (r == 0) { 1822 aobj->flags |= AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS; 1823 r = amdgpu_bo_pin(aobj, AMDGPU_GEM_DOMAIN_VRAM); 1824 if (r != 0) 1825 dev_err(adev->dev, "Failed to pin cursor BO (%d)\n", r); 1826 amdgpu_crtc->cursor_addr = amdgpu_bo_gpu_offset(aobj); 1827 amdgpu_bo_unreserve(aobj); 1828 } 1829 } 1830 } 1831 1832 drm_helper_resume_force_mode(dev); 1833 1834 /* turn on display hw */ 1835 drm_modeset_lock_all(dev); 1836 1837 drm_connector_list_iter_begin(dev, &iter); 1838 drm_for_each_connector_iter(connector, &iter) 1839 drm_helper_connector_dpms(connector, 1840 DRM_MODE_DPMS_ON); 1841 drm_connector_list_iter_end(&iter); 1842 1843 drm_modeset_unlock_all(dev); 1844 1845 drm_kms_helper_poll_enable(dev); 1846 1847 return 0; 1848 } 1849 1850 /* panic_bo is set in amdgpu_dm_plane_get_scanout_buffer() and only used in amdgpu_dm_set_pixel() 1851 * they are called from the panic handler, and protected by the drm_panic spinlock. 1852 */ 1853 static struct amdgpu_bo *panic_abo; 1854 1855 /* Use the indirect MMIO to write each pixel to the GPU VRAM, 1856 * This is a simplified version of amdgpu_device_mm_access() 1857 */ 1858 static void amdgpu_display_set_pixel(struct drm_scanout_buffer *sb, 1859 unsigned int x, 1860 unsigned int y, 1861 u32 color) 1862 { 1863 struct amdgpu_res_cursor cursor; 1864 unsigned long offset; 1865 struct amdgpu_bo *abo = panic_abo; 1866 struct amdgpu_device *adev = amdgpu_ttm_adev(abo->tbo.bdev); 1867 uint32_t tmp; 1868 1869 offset = x * 4 + y * sb->pitch[0]; 1870 amdgpu_res_first(abo->tbo.resource, offset, 4, &cursor); 1871 1872 tmp = cursor.start >> 31; 1873 WREG32_NO_KIQ(mmMM_INDEX, ((uint32_t) cursor.start) | 0x80000000); 1874 if (tmp != 0xffffffff) 1875 WREG32_NO_KIQ(mmMM_INDEX_HI, tmp); 1876 WREG32_NO_KIQ(mmMM_DATA, color); 1877 } 1878 1879 int amdgpu_display_get_scanout_buffer(struct drm_plane *plane, 1880 struct drm_scanout_buffer *sb) 1881 { 1882 struct amdgpu_bo *abo; 1883 struct drm_framebuffer *fb = plane->state->fb; 1884 1885 if (!fb) 1886 return -EINVAL; 1887 1888 DRM_DEBUG_KMS("Framebuffer %dx%d %p4cc\n", fb->width, fb->height, &fb->format->format); 1889 1890 abo = gem_to_amdgpu_bo(fb->obj[0]); 1891 if (!abo) 1892 return -EINVAL; 1893 1894 sb->width = fb->width; 1895 sb->height = fb->height; 1896 /* Use the generic linear format, because tiling will be disabled in panic_flush() */ 1897 sb->format = drm_format_info(fb->format->format); 1898 if (!sb->format) 1899 return -EINVAL; 1900 1901 sb->pitch[0] = fb->pitches[0]; 1902 1903 if (abo->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS) { 1904 if (abo->tbo.resource->mem_type != TTM_PL_VRAM) { 1905 drm_warn(plane->dev, "amdgpu panic, framebuffer not in VRAM\n"); 1906 return -EINVAL; 1907 } 1908 /* Only handle 32bits format, to simplify mmio access */ 1909 if (fb->format->cpp[0] != 4) { 1910 drm_warn(plane->dev, "amdgpu panic, pixel format is not 32bits\n"); 1911 return -EINVAL; 1912 } 1913 sb->set_pixel = amdgpu_display_set_pixel; 1914 panic_abo = abo; 1915 return 0; 1916 } 1917 if (!abo->kmap.virtual && 1918 ttm_bo_kmap(&abo->tbo, 0, PFN_UP(abo->tbo.base.size), &abo->kmap)) { 1919 drm_warn(plane->dev, "amdgpu bo map failed, panic won't be displayed\n"); 1920 return -ENOMEM; 1921 } 1922 if (abo->kmap.bo_kmap_type & TTM_BO_MAP_IOMEM_MASK) 1923 iosys_map_set_vaddr_iomem(&sb->map[0], abo->kmap.virtual); 1924 else 1925 iosys_map_set_vaddr(&sb->map[0], abo->kmap.virtual); 1926 1927 return 0; 1928 } 1929