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 #include <drm/drmP.h> 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 <asm/div64.h> 34 35 #include <linux/pm_runtime.h> 36 #include <drm/drm_crtc_helper.h> 37 #include <drm/drm_edid.h> 38 #include <drm/drm_gem_framebuffer_helper.h> 39 #include <drm/drm_fb_helper.h> 40 41 static void amdgpu_display_flip_callback(struct dma_fence *f, 42 struct dma_fence_cb *cb) 43 { 44 struct amdgpu_flip_work *work = 45 container_of(cb, struct amdgpu_flip_work, cb); 46 47 dma_fence_put(f); 48 schedule_work(&work->flip_work.work); 49 } 50 51 static bool amdgpu_display_flip_handle_fence(struct amdgpu_flip_work *work, 52 struct dma_fence **f) 53 { 54 struct dma_fence *fence= *f; 55 56 if (fence == NULL) 57 return false; 58 59 *f = NULL; 60 61 if (!dma_fence_add_callback(fence, &work->cb, 62 amdgpu_display_flip_callback)) 63 return true; 64 65 dma_fence_put(fence); 66 return false; 67 } 68 69 static void amdgpu_display_flip_work_func(struct work_struct *__work) 70 { 71 struct delayed_work *delayed_work = 72 container_of(__work, struct delayed_work, work); 73 struct amdgpu_flip_work *work = 74 container_of(delayed_work, struct amdgpu_flip_work, flip_work); 75 struct amdgpu_device *adev = work->adev; 76 struct amdgpu_crtc *amdgpu_crtc = adev->mode_info.crtcs[work->crtc_id]; 77 78 struct drm_crtc *crtc = &amdgpu_crtc->base; 79 unsigned long flags; 80 unsigned i; 81 int vpos, hpos; 82 83 if (amdgpu_display_flip_handle_fence(work, &work->excl)) 84 return; 85 86 for (i = 0; i < work->shared_count; ++i) 87 if (amdgpu_display_flip_handle_fence(work, &work->shared[i])) 88 return; 89 90 /* Wait until we're out of the vertical blank period before the one 91 * targeted by the flip 92 */ 93 if (amdgpu_crtc->enabled && 94 (amdgpu_display_get_crtc_scanoutpos(adev->ddev, work->crtc_id, 0, 95 &vpos, &hpos, NULL, NULL, 96 &crtc->hwmode) 97 & (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_IN_VBLANK)) == 98 (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_IN_VBLANK) && 99 (int)(work->target_vblank - 100 amdgpu_get_vblank_counter_kms(adev->ddev, amdgpu_crtc->crtc_id)) > 0) { 101 schedule_delayed_work(&work->flip_work, usecs_to_jiffies(1000)); 102 return; 103 } 104 105 /* We borrow the event spin lock for protecting flip_status */ 106 spin_lock_irqsave(&crtc->dev->event_lock, flags); 107 108 /* Do the flip (mmio) */ 109 adev->mode_info.funcs->page_flip(adev, work->crtc_id, work->base, work->async); 110 111 /* Set the flip status */ 112 amdgpu_crtc->pflip_status = AMDGPU_FLIP_SUBMITTED; 113 spin_unlock_irqrestore(&crtc->dev->event_lock, flags); 114 115 116 DRM_DEBUG_DRIVER("crtc:%d[%p], pflip_stat:AMDGPU_FLIP_SUBMITTED, work: %p,\n", 117 amdgpu_crtc->crtc_id, amdgpu_crtc, work); 118 119 } 120 121 /* 122 * Handle unpin events outside the interrupt handler proper. 123 */ 124 static void amdgpu_display_unpin_work_func(struct work_struct *__work) 125 { 126 struct amdgpu_flip_work *work = 127 container_of(__work, struct amdgpu_flip_work, unpin_work); 128 int r; 129 130 /* unpin of the old buffer */ 131 r = amdgpu_bo_reserve(work->old_abo, true); 132 if (likely(r == 0)) { 133 r = amdgpu_bo_unpin(work->old_abo); 134 if (unlikely(r != 0)) { 135 DRM_ERROR("failed to unpin buffer after flip\n"); 136 } 137 amdgpu_bo_unreserve(work->old_abo); 138 } else 139 DRM_ERROR("failed to reserve buffer after flip\n"); 140 141 amdgpu_bo_unref(&work->old_abo); 142 kfree(work->shared); 143 kfree(work); 144 } 145 146 int amdgpu_display_crtc_page_flip_target(struct drm_crtc *crtc, 147 struct drm_framebuffer *fb, 148 struct drm_pending_vblank_event *event, 149 uint32_t page_flip_flags, uint32_t target, 150 struct drm_modeset_acquire_ctx *ctx) 151 { 152 struct drm_device *dev = crtc->dev; 153 struct amdgpu_device *adev = dev->dev_private; 154 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); 155 struct drm_gem_object *obj; 156 struct amdgpu_flip_work *work; 157 struct amdgpu_bo *new_abo; 158 unsigned long flags; 159 u64 tiling_flags; 160 int i, r; 161 162 work = kzalloc(sizeof *work, GFP_KERNEL); 163 if (work == NULL) 164 return -ENOMEM; 165 166 INIT_DELAYED_WORK(&work->flip_work, amdgpu_display_flip_work_func); 167 INIT_WORK(&work->unpin_work, amdgpu_display_unpin_work_func); 168 169 work->event = event; 170 work->adev = adev; 171 work->crtc_id = amdgpu_crtc->crtc_id; 172 work->async = (page_flip_flags & DRM_MODE_PAGE_FLIP_ASYNC) != 0; 173 174 /* schedule unpin of the old buffer */ 175 obj = crtc->primary->fb->obj[0]; 176 177 /* take a reference to the old object */ 178 work->old_abo = gem_to_amdgpu_bo(obj); 179 amdgpu_bo_ref(work->old_abo); 180 181 obj = fb->obj[0]; 182 new_abo = gem_to_amdgpu_bo(obj); 183 184 /* pin the new buffer */ 185 r = amdgpu_bo_reserve(new_abo, false); 186 if (unlikely(r != 0)) { 187 DRM_ERROR("failed to reserve new abo buffer before flip\n"); 188 goto cleanup; 189 } 190 191 if (!adev->enable_virtual_display) { 192 r = amdgpu_bo_pin(new_abo, amdgpu_display_supported_domains(adev)); 193 if (unlikely(r != 0)) { 194 DRM_ERROR("failed to pin new abo buffer before flip\n"); 195 goto unreserve; 196 } 197 } 198 199 r = amdgpu_ttm_alloc_gart(&new_abo->tbo); 200 if (unlikely(r != 0)) { 201 DRM_ERROR("%p bind failed\n", new_abo); 202 goto unpin; 203 } 204 205 r = reservation_object_get_fences_rcu(new_abo->tbo.resv, &work->excl, 206 &work->shared_count, 207 &work->shared); 208 if (unlikely(r != 0)) { 209 DRM_ERROR("failed to get fences for buffer\n"); 210 goto unpin; 211 } 212 213 amdgpu_bo_get_tiling_flags(new_abo, &tiling_flags); 214 amdgpu_bo_unreserve(new_abo); 215 216 if (!adev->enable_virtual_display) 217 work->base = amdgpu_bo_gpu_offset(new_abo); 218 work->target_vblank = target - (uint32_t)drm_crtc_vblank_count(crtc) + 219 amdgpu_get_vblank_counter_kms(dev, work->crtc_id); 220 221 /* we borrow the event spin lock for protecting flip_wrok */ 222 spin_lock_irqsave(&crtc->dev->event_lock, flags); 223 if (amdgpu_crtc->pflip_status != AMDGPU_FLIP_NONE) { 224 DRM_DEBUG_DRIVER("flip queue: crtc already busy\n"); 225 spin_unlock_irqrestore(&crtc->dev->event_lock, flags); 226 r = -EBUSY; 227 goto pflip_cleanup; 228 } 229 230 amdgpu_crtc->pflip_status = AMDGPU_FLIP_PENDING; 231 amdgpu_crtc->pflip_works = work; 232 233 234 DRM_DEBUG_DRIVER("crtc:%d[%p], pflip_stat:AMDGPU_FLIP_PENDING, work: %p,\n", 235 amdgpu_crtc->crtc_id, amdgpu_crtc, work); 236 /* update crtc fb */ 237 crtc->primary->fb = fb; 238 spin_unlock_irqrestore(&crtc->dev->event_lock, flags); 239 amdgpu_display_flip_work_func(&work->flip_work.work); 240 return 0; 241 242 pflip_cleanup: 243 if (unlikely(amdgpu_bo_reserve(new_abo, false) != 0)) { 244 DRM_ERROR("failed to reserve new abo in error path\n"); 245 goto cleanup; 246 } 247 unpin: 248 if (!adev->enable_virtual_display) 249 if (unlikely(amdgpu_bo_unpin(new_abo) != 0)) 250 DRM_ERROR("failed to unpin new abo in error path\n"); 251 252 unreserve: 253 amdgpu_bo_unreserve(new_abo); 254 255 cleanup: 256 amdgpu_bo_unref(&work->old_abo); 257 dma_fence_put(work->excl); 258 for (i = 0; i < work->shared_count; ++i) 259 dma_fence_put(work->shared[i]); 260 kfree(work->shared); 261 kfree(work); 262 263 return r; 264 } 265 266 int amdgpu_display_crtc_set_config(struct drm_mode_set *set, 267 struct drm_modeset_acquire_ctx *ctx) 268 { 269 struct drm_device *dev; 270 struct amdgpu_device *adev; 271 struct drm_crtc *crtc; 272 bool active = false; 273 int ret; 274 275 if (!set || !set->crtc) 276 return -EINVAL; 277 278 dev = set->crtc->dev; 279 280 ret = pm_runtime_get_sync(dev->dev); 281 if (ret < 0) 282 return ret; 283 284 ret = drm_crtc_helper_set_config(set, ctx); 285 286 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) 287 if (crtc->enabled) 288 active = true; 289 290 pm_runtime_mark_last_busy(dev->dev); 291 292 adev = dev->dev_private; 293 /* if we have active crtcs and we don't have a power ref, 294 take the current one */ 295 if (active && !adev->have_disp_power_ref) { 296 adev->have_disp_power_ref = true; 297 return ret; 298 } 299 /* if we have no active crtcs, then drop the power ref 300 we got before */ 301 if (!active && adev->have_disp_power_ref) { 302 pm_runtime_put_autosuspend(dev->dev); 303 adev->have_disp_power_ref = false; 304 } 305 306 /* drop the power reference we got coming in here */ 307 pm_runtime_put_autosuspend(dev->dev); 308 return ret; 309 } 310 311 static const char *encoder_names[41] = { 312 "NONE", 313 "INTERNAL_LVDS", 314 "INTERNAL_TMDS1", 315 "INTERNAL_TMDS2", 316 "INTERNAL_DAC1", 317 "INTERNAL_DAC2", 318 "INTERNAL_SDVOA", 319 "INTERNAL_SDVOB", 320 "SI170B", 321 "CH7303", 322 "CH7301", 323 "INTERNAL_DVO1", 324 "EXTERNAL_SDVOA", 325 "EXTERNAL_SDVOB", 326 "TITFP513", 327 "INTERNAL_LVTM1", 328 "VT1623", 329 "HDMI_SI1930", 330 "HDMI_INTERNAL", 331 "INTERNAL_KLDSCP_TMDS1", 332 "INTERNAL_KLDSCP_DVO1", 333 "INTERNAL_KLDSCP_DAC1", 334 "INTERNAL_KLDSCP_DAC2", 335 "SI178", 336 "MVPU_FPGA", 337 "INTERNAL_DDI", 338 "VT1625", 339 "HDMI_SI1932", 340 "DP_AN9801", 341 "DP_DP501", 342 "INTERNAL_UNIPHY", 343 "INTERNAL_KLDSCP_LVTMA", 344 "INTERNAL_UNIPHY1", 345 "INTERNAL_UNIPHY2", 346 "NUTMEG", 347 "TRAVIS", 348 "INTERNAL_VCE", 349 "INTERNAL_UNIPHY3", 350 "HDMI_ANX9805", 351 "INTERNAL_AMCLK", 352 "VIRTUAL", 353 }; 354 355 static const char *hpd_names[6] = { 356 "HPD1", 357 "HPD2", 358 "HPD3", 359 "HPD4", 360 "HPD5", 361 "HPD6", 362 }; 363 364 void amdgpu_display_print_display_setup(struct drm_device *dev) 365 { 366 struct drm_connector *connector; 367 struct amdgpu_connector *amdgpu_connector; 368 struct drm_encoder *encoder; 369 struct amdgpu_encoder *amdgpu_encoder; 370 uint32_t devices; 371 int i = 0; 372 373 DRM_INFO("AMDGPU Display Connectors\n"); 374 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 375 amdgpu_connector = to_amdgpu_connector(connector); 376 DRM_INFO("Connector %d:\n", i); 377 DRM_INFO(" %s\n", connector->name); 378 if (amdgpu_connector->hpd.hpd != AMDGPU_HPD_NONE) 379 DRM_INFO(" %s\n", hpd_names[amdgpu_connector->hpd.hpd]); 380 if (amdgpu_connector->ddc_bus) { 381 DRM_INFO(" DDC: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n", 382 amdgpu_connector->ddc_bus->rec.mask_clk_reg, 383 amdgpu_connector->ddc_bus->rec.mask_data_reg, 384 amdgpu_connector->ddc_bus->rec.a_clk_reg, 385 amdgpu_connector->ddc_bus->rec.a_data_reg, 386 amdgpu_connector->ddc_bus->rec.en_clk_reg, 387 amdgpu_connector->ddc_bus->rec.en_data_reg, 388 amdgpu_connector->ddc_bus->rec.y_clk_reg, 389 amdgpu_connector->ddc_bus->rec.y_data_reg); 390 if (amdgpu_connector->router.ddc_valid) 391 DRM_INFO(" DDC Router 0x%x/0x%x\n", 392 amdgpu_connector->router.ddc_mux_control_pin, 393 amdgpu_connector->router.ddc_mux_state); 394 if (amdgpu_connector->router.cd_valid) 395 DRM_INFO(" Clock/Data Router 0x%x/0x%x\n", 396 amdgpu_connector->router.cd_mux_control_pin, 397 amdgpu_connector->router.cd_mux_state); 398 } else { 399 if (connector->connector_type == DRM_MODE_CONNECTOR_VGA || 400 connector->connector_type == DRM_MODE_CONNECTOR_DVII || 401 connector->connector_type == DRM_MODE_CONNECTOR_DVID || 402 connector->connector_type == DRM_MODE_CONNECTOR_DVIA || 403 connector->connector_type == DRM_MODE_CONNECTOR_HDMIA || 404 connector->connector_type == DRM_MODE_CONNECTOR_HDMIB) 405 DRM_INFO(" DDC: no ddc bus - possible BIOS bug - please report to xorg-driver-ati@lists.x.org\n"); 406 } 407 DRM_INFO(" Encoders:\n"); 408 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 409 amdgpu_encoder = to_amdgpu_encoder(encoder); 410 devices = amdgpu_encoder->devices & amdgpu_connector->devices; 411 if (devices) { 412 if (devices & ATOM_DEVICE_CRT1_SUPPORT) 413 DRM_INFO(" CRT1: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 414 if (devices & ATOM_DEVICE_CRT2_SUPPORT) 415 DRM_INFO(" CRT2: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 416 if (devices & ATOM_DEVICE_LCD1_SUPPORT) 417 DRM_INFO(" LCD1: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 418 if (devices & ATOM_DEVICE_DFP1_SUPPORT) 419 DRM_INFO(" DFP1: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 420 if (devices & ATOM_DEVICE_DFP2_SUPPORT) 421 DRM_INFO(" DFP2: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 422 if (devices & ATOM_DEVICE_DFP3_SUPPORT) 423 DRM_INFO(" DFP3: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 424 if (devices & ATOM_DEVICE_DFP4_SUPPORT) 425 DRM_INFO(" DFP4: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 426 if (devices & ATOM_DEVICE_DFP5_SUPPORT) 427 DRM_INFO(" DFP5: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 428 if (devices & ATOM_DEVICE_DFP6_SUPPORT) 429 DRM_INFO(" DFP6: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 430 if (devices & ATOM_DEVICE_TV1_SUPPORT) 431 DRM_INFO(" TV1: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 432 if (devices & ATOM_DEVICE_CV_SUPPORT) 433 DRM_INFO(" CV: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 434 } 435 } 436 i++; 437 } 438 } 439 440 /** 441 * amdgpu_display_ddc_probe 442 * 443 */ 444 bool amdgpu_display_ddc_probe(struct amdgpu_connector *amdgpu_connector, 445 bool use_aux) 446 { 447 u8 out = 0x0; 448 u8 buf[8]; 449 int ret; 450 struct i2c_msg msgs[] = { 451 { 452 .addr = DDC_ADDR, 453 .flags = 0, 454 .len = 1, 455 .buf = &out, 456 }, 457 { 458 .addr = DDC_ADDR, 459 .flags = I2C_M_RD, 460 .len = 8, 461 .buf = buf, 462 } 463 }; 464 465 /* on hw with routers, select right port */ 466 if (amdgpu_connector->router.ddc_valid) 467 amdgpu_i2c_router_select_ddc_port(amdgpu_connector); 468 469 if (use_aux) { 470 ret = i2c_transfer(&amdgpu_connector->ddc_bus->aux.ddc, msgs, 2); 471 } else { 472 ret = i2c_transfer(&amdgpu_connector->ddc_bus->adapter, msgs, 2); 473 } 474 475 if (ret != 2) 476 /* Couldn't find an accessible DDC on this connector */ 477 return false; 478 /* Probe also for valid EDID header 479 * EDID header starts with: 480 * 0x00,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x00. 481 * Only the first 6 bytes must be valid as 482 * drm_edid_block_valid() can fix the last 2 bytes */ 483 if (drm_edid_header_is_valid(buf) < 6) { 484 /* Couldn't find an accessible EDID on this 485 * connector */ 486 return false; 487 } 488 return true; 489 } 490 491 static const struct drm_framebuffer_funcs amdgpu_fb_funcs = { 492 .destroy = drm_gem_fb_destroy, 493 .create_handle = drm_gem_fb_create_handle, 494 }; 495 496 uint32_t amdgpu_display_supported_domains(struct amdgpu_device *adev) 497 { 498 uint32_t domain = AMDGPU_GEM_DOMAIN_VRAM; 499 500 #if defined(CONFIG_DRM_AMD_DC) 501 if (adev->asic_type >= CHIP_CARRIZO && adev->asic_type < CHIP_RAVEN && 502 adev->flags & AMD_IS_APU && 503 amdgpu_device_asic_has_dc_support(adev->asic_type)) 504 domain |= AMDGPU_GEM_DOMAIN_GTT; 505 #endif 506 507 return domain; 508 } 509 510 int amdgpu_display_framebuffer_init(struct drm_device *dev, 511 struct amdgpu_framebuffer *rfb, 512 const struct drm_mode_fb_cmd2 *mode_cmd, 513 struct drm_gem_object *obj) 514 { 515 int ret; 516 rfb->base.obj[0] = obj; 517 drm_helper_mode_fill_fb_struct(dev, &rfb->base, mode_cmd); 518 ret = drm_framebuffer_init(dev, &rfb->base, &amdgpu_fb_funcs); 519 if (ret) { 520 rfb->base.obj[0] = NULL; 521 return ret; 522 } 523 return 0; 524 } 525 526 struct drm_framebuffer * 527 amdgpu_display_user_framebuffer_create(struct drm_device *dev, 528 struct drm_file *file_priv, 529 const struct drm_mode_fb_cmd2 *mode_cmd) 530 { 531 struct drm_gem_object *obj; 532 struct amdgpu_framebuffer *amdgpu_fb; 533 int ret; 534 535 obj = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]); 536 if (obj == NULL) { 537 dev_err(&dev->pdev->dev, "No GEM object associated to handle 0x%08X, " 538 "can't create framebuffer\n", mode_cmd->handles[0]); 539 return ERR_PTR(-ENOENT); 540 } 541 542 /* Handle is imported dma-buf, so cannot be migrated to VRAM for scanout */ 543 if (obj->import_attach) { 544 DRM_DEBUG_KMS("Cannot create framebuffer from imported dma_buf\n"); 545 return ERR_PTR(-EINVAL); 546 } 547 548 amdgpu_fb = kzalloc(sizeof(*amdgpu_fb), GFP_KERNEL); 549 if (amdgpu_fb == NULL) { 550 drm_gem_object_put_unlocked(obj); 551 return ERR_PTR(-ENOMEM); 552 } 553 554 ret = amdgpu_display_framebuffer_init(dev, amdgpu_fb, mode_cmd, obj); 555 if (ret) { 556 kfree(amdgpu_fb); 557 drm_gem_object_put_unlocked(obj); 558 return ERR_PTR(ret); 559 } 560 561 return &amdgpu_fb->base; 562 } 563 564 const struct drm_mode_config_funcs amdgpu_mode_funcs = { 565 .fb_create = amdgpu_display_user_framebuffer_create, 566 .output_poll_changed = drm_fb_helper_output_poll_changed, 567 }; 568 569 static const struct drm_prop_enum_list amdgpu_underscan_enum_list[] = 570 { { UNDERSCAN_OFF, "off" }, 571 { UNDERSCAN_ON, "on" }, 572 { UNDERSCAN_AUTO, "auto" }, 573 }; 574 575 static const struct drm_prop_enum_list amdgpu_audio_enum_list[] = 576 { { AMDGPU_AUDIO_DISABLE, "off" }, 577 { AMDGPU_AUDIO_ENABLE, "on" }, 578 { AMDGPU_AUDIO_AUTO, "auto" }, 579 }; 580 581 /* XXX support different dither options? spatial, temporal, both, etc. */ 582 static const struct drm_prop_enum_list amdgpu_dither_enum_list[] = 583 { { AMDGPU_FMT_DITHER_DISABLE, "off" }, 584 { AMDGPU_FMT_DITHER_ENABLE, "on" }, 585 }; 586 587 int amdgpu_display_modeset_create_props(struct amdgpu_device *adev) 588 { 589 int sz; 590 591 adev->mode_info.coherent_mode_property = 592 drm_property_create_range(adev->ddev, 0 , "coherent", 0, 1); 593 if (!adev->mode_info.coherent_mode_property) 594 return -ENOMEM; 595 596 adev->mode_info.load_detect_property = 597 drm_property_create_range(adev->ddev, 0, "load detection", 0, 1); 598 if (!adev->mode_info.load_detect_property) 599 return -ENOMEM; 600 601 drm_mode_create_scaling_mode_property(adev->ddev); 602 603 sz = ARRAY_SIZE(amdgpu_underscan_enum_list); 604 adev->mode_info.underscan_property = 605 drm_property_create_enum(adev->ddev, 0, 606 "underscan", 607 amdgpu_underscan_enum_list, sz); 608 609 adev->mode_info.underscan_hborder_property = 610 drm_property_create_range(adev->ddev, 0, 611 "underscan hborder", 0, 128); 612 if (!adev->mode_info.underscan_hborder_property) 613 return -ENOMEM; 614 615 adev->mode_info.underscan_vborder_property = 616 drm_property_create_range(adev->ddev, 0, 617 "underscan vborder", 0, 128); 618 if (!adev->mode_info.underscan_vborder_property) 619 return -ENOMEM; 620 621 sz = ARRAY_SIZE(amdgpu_audio_enum_list); 622 adev->mode_info.audio_property = 623 drm_property_create_enum(adev->ddev, 0, 624 "audio", 625 amdgpu_audio_enum_list, sz); 626 627 sz = ARRAY_SIZE(amdgpu_dither_enum_list); 628 adev->mode_info.dither_property = 629 drm_property_create_enum(adev->ddev, 0, 630 "dither", 631 amdgpu_dither_enum_list, sz); 632 633 if (amdgpu_device_has_dc_support(adev)) { 634 adev->mode_info.max_bpc_property = 635 drm_property_create_range(adev->ddev, 0, "max bpc", 8, 16); 636 if (!adev->mode_info.max_bpc_property) 637 return -ENOMEM; 638 adev->mode_info.abm_level_property = 639 drm_property_create_range(adev->ddev, 0, 640 "abm level", 0, 4); 641 if (!adev->mode_info.abm_level_property) 642 return -ENOMEM; 643 } 644 645 return 0; 646 } 647 648 void amdgpu_display_update_priority(struct amdgpu_device *adev) 649 { 650 /* adjustment options for the display watermarks */ 651 if ((amdgpu_disp_priority == 0) || (amdgpu_disp_priority > 2)) 652 adev->mode_info.disp_priority = 0; 653 else 654 adev->mode_info.disp_priority = amdgpu_disp_priority; 655 656 } 657 658 static bool amdgpu_display_is_hdtv_mode(const struct drm_display_mode *mode) 659 { 660 /* try and guess if this is a tv or a monitor */ 661 if ((mode->vdisplay == 480 && mode->hdisplay == 720) || /* 480p */ 662 (mode->vdisplay == 576) || /* 576p */ 663 (mode->vdisplay == 720) || /* 720p */ 664 (mode->vdisplay == 1080)) /* 1080p */ 665 return true; 666 else 667 return false; 668 } 669 670 bool amdgpu_display_crtc_scaling_mode_fixup(struct drm_crtc *crtc, 671 const struct drm_display_mode *mode, 672 struct drm_display_mode *adjusted_mode) 673 { 674 struct drm_device *dev = crtc->dev; 675 struct drm_encoder *encoder; 676 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); 677 struct amdgpu_encoder *amdgpu_encoder; 678 struct drm_connector *connector; 679 struct amdgpu_connector *amdgpu_connector; 680 u32 src_v = 1, dst_v = 1; 681 u32 src_h = 1, dst_h = 1; 682 683 amdgpu_crtc->h_border = 0; 684 amdgpu_crtc->v_border = 0; 685 686 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 687 if (encoder->crtc != crtc) 688 continue; 689 amdgpu_encoder = to_amdgpu_encoder(encoder); 690 connector = amdgpu_get_connector_for_encoder(encoder); 691 amdgpu_connector = to_amdgpu_connector(connector); 692 693 /* set scaling */ 694 if (amdgpu_encoder->rmx_type == RMX_OFF) 695 amdgpu_crtc->rmx_type = RMX_OFF; 696 else if (mode->hdisplay < amdgpu_encoder->native_mode.hdisplay || 697 mode->vdisplay < amdgpu_encoder->native_mode.vdisplay) 698 amdgpu_crtc->rmx_type = amdgpu_encoder->rmx_type; 699 else 700 amdgpu_crtc->rmx_type = RMX_OFF; 701 /* copy native mode */ 702 memcpy(&amdgpu_crtc->native_mode, 703 &amdgpu_encoder->native_mode, 704 sizeof(struct drm_display_mode)); 705 src_v = crtc->mode.vdisplay; 706 dst_v = amdgpu_crtc->native_mode.vdisplay; 707 src_h = crtc->mode.hdisplay; 708 dst_h = amdgpu_crtc->native_mode.hdisplay; 709 710 /* fix up for overscan on hdmi */ 711 if ((!(mode->flags & DRM_MODE_FLAG_INTERLACE)) && 712 ((amdgpu_encoder->underscan_type == UNDERSCAN_ON) || 713 ((amdgpu_encoder->underscan_type == UNDERSCAN_AUTO) && 714 drm_detect_hdmi_monitor(amdgpu_connector_edid(connector)) && 715 amdgpu_display_is_hdtv_mode(mode)))) { 716 if (amdgpu_encoder->underscan_hborder != 0) 717 amdgpu_crtc->h_border = amdgpu_encoder->underscan_hborder; 718 else 719 amdgpu_crtc->h_border = (mode->hdisplay >> 5) + 16; 720 if (amdgpu_encoder->underscan_vborder != 0) 721 amdgpu_crtc->v_border = amdgpu_encoder->underscan_vborder; 722 else 723 amdgpu_crtc->v_border = (mode->vdisplay >> 5) + 16; 724 amdgpu_crtc->rmx_type = RMX_FULL; 725 src_v = crtc->mode.vdisplay; 726 dst_v = crtc->mode.vdisplay - (amdgpu_crtc->v_border * 2); 727 src_h = crtc->mode.hdisplay; 728 dst_h = crtc->mode.hdisplay - (amdgpu_crtc->h_border * 2); 729 } 730 } 731 if (amdgpu_crtc->rmx_type != RMX_OFF) { 732 fixed20_12 a, b; 733 a.full = dfixed_const(src_v); 734 b.full = dfixed_const(dst_v); 735 amdgpu_crtc->vsc.full = dfixed_div(a, b); 736 a.full = dfixed_const(src_h); 737 b.full = dfixed_const(dst_h); 738 amdgpu_crtc->hsc.full = dfixed_div(a, b); 739 } else { 740 amdgpu_crtc->vsc.full = dfixed_const(1); 741 amdgpu_crtc->hsc.full = dfixed_const(1); 742 } 743 return true; 744 } 745 746 /* 747 * Retrieve current video scanout position of crtc on a given gpu, and 748 * an optional accurate timestamp of when query happened. 749 * 750 * \param dev Device to query. 751 * \param pipe Crtc to query. 752 * \param flags Flags from caller (DRM_CALLED_FROM_VBLIRQ or 0). 753 * For driver internal use only also supports these flags: 754 * 755 * USE_REAL_VBLANKSTART to use the real start of vblank instead 756 * of a fudged earlier start of vblank. 757 * 758 * GET_DISTANCE_TO_VBLANKSTART to return distance to the 759 * fudged earlier start of vblank in *vpos and the distance 760 * to true start of vblank in *hpos. 761 * 762 * \param *vpos Location where vertical scanout position should be stored. 763 * \param *hpos Location where horizontal scanout position should go. 764 * \param *stime Target location for timestamp taken immediately before 765 * scanout position query. Can be NULL to skip timestamp. 766 * \param *etime Target location for timestamp taken immediately after 767 * scanout position query. Can be NULL to skip timestamp. 768 * 769 * Returns vpos as a positive number while in active scanout area. 770 * Returns vpos as a negative number inside vblank, counting the number 771 * of scanlines to go until end of vblank, e.g., -1 means "one scanline 772 * until start of active scanout / end of vblank." 773 * 774 * \return Flags, or'ed together as follows: 775 * 776 * DRM_SCANOUTPOS_VALID = Query successful. 777 * DRM_SCANOUTPOS_INVBL = Inside vblank. 778 * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of 779 * this flag means that returned position may be offset by a constant but 780 * unknown small number of scanlines wrt. real scanout position. 781 * 782 */ 783 int amdgpu_display_get_crtc_scanoutpos(struct drm_device *dev, 784 unsigned int pipe, unsigned int flags, int *vpos, 785 int *hpos, ktime_t *stime, ktime_t *etime, 786 const struct drm_display_mode *mode) 787 { 788 u32 vbl = 0, position = 0; 789 int vbl_start, vbl_end, vtotal, ret = 0; 790 bool in_vbl = true; 791 792 struct amdgpu_device *adev = dev->dev_private; 793 794 /* preempt_disable_rt() should go right here in PREEMPT_RT patchset. */ 795 796 /* Get optional system timestamp before query. */ 797 if (stime) 798 *stime = ktime_get(); 799 800 if (amdgpu_display_page_flip_get_scanoutpos(adev, pipe, &vbl, &position) == 0) 801 ret |= DRM_SCANOUTPOS_VALID; 802 803 /* Get optional system timestamp after query. */ 804 if (etime) 805 *etime = ktime_get(); 806 807 /* preempt_enable_rt() should go right here in PREEMPT_RT patchset. */ 808 809 /* Decode into vertical and horizontal scanout position. */ 810 *vpos = position & 0x1fff; 811 *hpos = (position >> 16) & 0x1fff; 812 813 /* Valid vblank area boundaries from gpu retrieved? */ 814 if (vbl > 0) { 815 /* Yes: Decode. */ 816 ret |= DRM_SCANOUTPOS_ACCURATE; 817 vbl_start = vbl & 0x1fff; 818 vbl_end = (vbl >> 16) & 0x1fff; 819 } 820 else { 821 /* No: Fake something reasonable which gives at least ok results. */ 822 vbl_start = mode->crtc_vdisplay; 823 vbl_end = 0; 824 } 825 826 /* Called from driver internal vblank counter query code? */ 827 if (flags & GET_DISTANCE_TO_VBLANKSTART) { 828 /* Caller wants distance from real vbl_start in *hpos */ 829 *hpos = *vpos - vbl_start; 830 } 831 832 /* Fudge vblank to start a few scanlines earlier to handle the 833 * problem that vblank irqs fire a few scanlines before start 834 * of vblank. Some driver internal callers need the true vblank 835 * start to be used and signal this via the USE_REAL_VBLANKSTART flag. 836 * 837 * The cause of the "early" vblank irq is that the irq is triggered 838 * by the line buffer logic when the line buffer read position enters 839 * the vblank, whereas our crtc scanout position naturally lags the 840 * line buffer read position. 841 */ 842 if (!(flags & USE_REAL_VBLANKSTART)) 843 vbl_start -= adev->mode_info.crtcs[pipe]->lb_vblank_lead_lines; 844 845 /* Test scanout position against vblank region. */ 846 if ((*vpos < vbl_start) && (*vpos >= vbl_end)) 847 in_vbl = false; 848 849 /* In vblank? */ 850 if (in_vbl) 851 ret |= DRM_SCANOUTPOS_IN_VBLANK; 852 853 /* Called from driver internal vblank counter query code? */ 854 if (flags & GET_DISTANCE_TO_VBLANKSTART) { 855 /* Caller wants distance from fudged earlier vbl_start */ 856 *vpos -= vbl_start; 857 return ret; 858 } 859 860 /* Check if inside vblank area and apply corrective offsets: 861 * vpos will then be >=0 in video scanout area, but negative 862 * within vblank area, counting down the number of lines until 863 * start of scanout. 864 */ 865 866 /* Inside "upper part" of vblank area? Apply corrective offset if so: */ 867 if (in_vbl && (*vpos >= vbl_start)) { 868 vtotal = mode->crtc_vtotal; 869 870 /* With variable refresh rate displays the vpos can exceed 871 * the vtotal value. Clamp to 0 to return -vbl_end instead 872 * of guessing the remaining number of lines until scanout. 873 */ 874 *vpos = (*vpos < vtotal) ? (*vpos - vtotal) : 0; 875 } 876 877 /* Correct for shifted end of vbl at vbl_end. */ 878 *vpos = *vpos - vbl_end; 879 880 return ret; 881 } 882 883 int amdgpu_display_crtc_idx_to_irq_type(struct amdgpu_device *adev, int crtc) 884 { 885 if (crtc < 0 || crtc >= adev->mode_info.num_crtc) 886 return AMDGPU_CRTC_IRQ_NONE; 887 888 switch (crtc) { 889 case 0: 890 return AMDGPU_CRTC_IRQ_VBLANK1; 891 case 1: 892 return AMDGPU_CRTC_IRQ_VBLANK2; 893 case 2: 894 return AMDGPU_CRTC_IRQ_VBLANK3; 895 case 3: 896 return AMDGPU_CRTC_IRQ_VBLANK4; 897 case 4: 898 return AMDGPU_CRTC_IRQ_VBLANK5; 899 case 5: 900 return AMDGPU_CRTC_IRQ_VBLANK6; 901 default: 902 return AMDGPU_CRTC_IRQ_NONE; 903 } 904 } 905