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 <asm/div64.h> 33 34 #include <linux/pm_runtime.h> 35 #include <drm/drm_crtc_helper.h> 36 #include <drm/drm_edid.h> 37 38 static void amdgpu_flip_callback(struct dma_fence *f, struct dma_fence_cb *cb) 39 { 40 struct amdgpu_flip_work *work = 41 container_of(cb, struct amdgpu_flip_work, cb); 42 43 dma_fence_put(f); 44 schedule_work(&work->flip_work.work); 45 } 46 47 static bool amdgpu_flip_handle_fence(struct amdgpu_flip_work *work, 48 struct dma_fence **f) 49 { 50 struct dma_fence *fence= *f; 51 52 if (fence == NULL) 53 return false; 54 55 *f = NULL; 56 57 if (!dma_fence_add_callback(fence, &work->cb, amdgpu_flip_callback)) 58 return true; 59 60 dma_fence_put(fence); 61 return false; 62 } 63 64 static void amdgpu_flip_work_func(struct work_struct *__work) 65 { 66 struct delayed_work *delayed_work = 67 container_of(__work, struct delayed_work, work); 68 struct amdgpu_flip_work *work = 69 container_of(delayed_work, struct amdgpu_flip_work, flip_work); 70 struct amdgpu_device *adev = work->adev; 71 struct amdgpu_crtc *amdgpu_crtc = adev->mode_info.crtcs[work->crtc_id]; 72 73 struct drm_crtc *crtc = &amdgpu_crtc->base; 74 unsigned long flags; 75 unsigned i; 76 int vpos, hpos; 77 78 if (amdgpu_flip_handle_fence(work, &work->excl)) 79 return; 80 81 for (i = 0; i < work->shared_count; ++i) 82 if (amdgpu_flip_handle_fence(work, &work->shared[i])) 83 return; 84 85 /* Wait until we're out of the vertical blank period before the one 86 * targeted by the flip 87 */ 88 if (amdgpu_crtc->enabled && 89 (amdgpu_get_crtc_scanoutpos(adev->ddev, work->crtc_id, 0, 90 &vpos, &hpos, NULL, NULL, 91 &crtc->hwmode) 92 & (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_IN_VBLANK)) == 93 (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_IN_VBLANK) && 94 (int)(work->target_vblank - 95 amdgpu_get_vblank_counter_kms(adev->ddev, amdgpu_crtc->crtc_id)) > 0) { 96 schedule_delayed_work(&work->flip_work, usecs_to_jiffies(1000)); 97 return; 98 } 99 100 /* We borrow the event spin lock for protecting flip_status */ 101 spin_lock_irqsave(&crtc->dev->event_lock, flags); 102 103 /* Do the flip (mmio) */ 104 adev->mode_info.funcs->page_flip(adev, work->crtc_id, work->base, work->async); 105 106 /* Set the flip status */ 107 amdgpu_crtc->pflip_status = AMDGPU_FLIP_SUBMITTED; 108 spin_unlock_irqrestore(&crtc->dev->event_lock, flags); 109 110 111 DRM_DEBUG_DRIVER("crtc:%d[%p], pflip_stat:AMDGPU_FLIP_SUBMITTED, work: %p,\n", 112 amdgpu_crtc->crtc_id, amdgpu_crtc, work); 113 114 } 115 116 /* 117 * Handle unpin events outside the interrupt handler proper. 118 */ 119 static void amdgpu_unpin_work_func(struct work_struct *__work) 120 { 121 struct amdgpu_flip_work *work = 122 container_of(__work, struct amdgpu_flip_work, unpin_work); 123 int r; 124 125 /* unpin of the old buffer */ 126 r = amdgpu_bo_reserve(work->old_abo, false); 127 if (likely(r == 0)) { 128 r = amdgpu_bo_unpin(work->old_abo); 129 if (unlikely(r != 0)) { 130 DRM_ERROR("failed to unpin buffer after flip\n"); 131 } 132 amdgpu_bo_unreserve(work->old_abo); 133 } else 134 DRM_ERROR("failed to reserve buffer after flip\n"); 135 136 amdgpu_bo_unref(&work->old_abo); 137 kfree(work->shared); 138 kfree(work); 139 } 140 141 int amdgpu_crtc_page_flip_target(struct drm_crtc *crtc, 142 struct drm_framebuffer *fb, 143 struct drm_pending_vblank_event *event, 144 uint32_t page_flip_flags, uint32_t target) 145 { 146 struct drm_device *dev = crtc->dev; 147 struct amdgpu_device *adev = dev->dev_private; 148 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); 149 struct amdgpu_framebuffer *old_amdgpu_fb; 150 struct amdgpu_framebuffer *new_amdgpu_fb; 151 struct drm_gem_object *obj; 152 struct amdgpu_flip_work *work; 153 struct amdgpu_bo *new_abo; 154 unsigned long flags; 155 u64 tiling_flags; 156 u64 base; 157 int i, r; 158 159 work = kzalloc(sizeof *work, GFP_KERNEL); 160 if (work == NULL) 161 return -ENOMEM; 162 163 INIT_DELAYED_WORK(&work->flip_work, amdgpu_flip_work_func); 164 INIT_WORK(&work->unpin_work, amdgpu_unpin_work_func); 165 166 work->event = event; 167 work->adev = adev; 168 work->crtc_id = amdgpu_crtc->crtc_id; 169 work->async = (page_flip_flags & DRM_MODE_PAGE_FLIP_ASYNC) != 0; 170 171 /* schedule unpin of the old buffer */ 172 old_amdgpu_fb = to_amdgpu_framebuffer(crtc->primary->fb); 173 obj = old_amdgpu_fb->obj; 174 175 /* take a reference to the old object */ 176 work->old_abo = gem_to_amdgpu_bo(obj); 177 amdgpu_bo_ref(work->old_abo); 178 179 new_amdgpu_fb = to_amdgpu_framebuffer(fb); 180 obj = new_amdgpu_fb->obj; 181 new_abo = gem_to_amdgpu_bo(obj); 182 183 /* pin the new buffer */ 184 r = amdgpu_bo_reserve(new_abo, false); 185 if (unlikely(r != 0)) { 186 DRM_ERROR("failed to reserve new abo buffer before flip\n"); 187 goto cleanup; 188 } 189 190 r = amdgpu_bo_pin(new_abo, AMDGPU_GEM_DOMAIN_VRAM, &base); 191 if (unlikely(r != 0)) { 192 r = -EINVAL; 193 DRM_ERROR("failed to pin new abo buffer before flip\n"); 194 goto unreserve; 195 } 196 197 r = reservation_object_get_fences_rcu(new_abo->tbo.resv, &work->excl, 198 &work->shared_count, 199 &work->shared); 200 if (unlikely(r != 0)) { 201 DRM_ERROR("failed to get fences for buffer\n"); 202 goto unpin; 203 } 204 205 amdgpu_bo_get_tiling_flags(new_abo, &tiling_flags); 206 amdgpu_bo_unreserve(new_abo); 207 208 work->base = base; 209 work->target_vblank = target - drm_crtc_vblank_count(crtc) + 210 amdgpu_get_vblank_counter_kms(dev, work->crtc_id); 211 212 /* we borrow the event spin lock for protecting flip_wrok */ 213 spin_lock_irqsave(&crtc->dev->event_lock, flags); 214 if (amdgpu_crtc->pflip_status != AMDGPU_FLIP_NONE) { 215 DRM_DEBUG_DRIVER("flip queue: crtc already busy\n"); 216 spin_unlock_irqrestore(&crtc->dev->event_lock, flags); 217 r = -EBUSY; 218 goto pflip_cleanup; 219 } 220 221 amdgpu_crtc->pflip_status = AMDGPU_FLIP_PENDING; 222 amdgpu_crtc->pflip_works = work; 223 224 225 DRM_DEBUG_DRIVER("crtc:%d[%p], pflip_stat:AMDGPU_FLIP_PENDING, work: %p,\n", 226 amdgpu_crtc->crtc_id, amdgpu_crtc, work); 227 /* update crtc fb */ 228 crtc->primary->fb = fb; 229 spin_unlock_irqrestore(&crtc->dev->event_lock, flags); 230 amdgpu_flip_work_func(&work->flip_work.work); 231 return 0; 232 233 pflip_cleanup: 234 if (unlikely(amdgpu_bo_reserve(new_abo, false) != 0)) { 235 DRM_ERROR("failed to reserve new abo in error path\n"); 236 goto cleanup; 237 } 238 unpin: 239 if (unlikely(amdgpu_bo_unpin(new_abo) != 0)) { 240 DRM_ERROR("failed to unpin new abo in error path\n"); 241 } 242 unreserve: 243 amdgpu_bo_unreserve(new_abo); 244 245 cleanup: 246 amdgpu_bo_unref(&work->old_abo); 247 dma_fence_put(work->excl); 248 for (i = 0; i < work->shared_count; ++i) 249 dma_fence_put(work->shared[i]); 250 kfree(work->shared); 251 kfree(work); 252 253 return r; 254 } 255 256 int amdgpu_crtc_set_config(struct drm_mode_set *set) 257 { 258 struct drm_device *dev; 259 struct amdgpu_device *adev; 260 struct drm_crtc *crtc; 261 bool active = false; 262 int ret; 263 264 if (!set || !set->crtc) 265 return -EINVAL; 266 267 dev = set->crtc->dev; 268 269 ret = pm_runtime_get_sync(dev->dev); 270 if (ret < 0) 271 return ret; 272 273 ret = drm_crtc_helper_set_config(set); 274 275 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) 276 if (crtc->enabled) 277 active = true; 278 279 pm_runtime_mark_last_busy(dev->dev); 280 281 adev = dev->dev_private; 282 /* if we have active crtcs and we don't have a power ref, 283 take the current one */ 284 if (active && !adev->have_disp_power_ref) { 285 adev->have_disp_power_ref = true; 286 return ret; 287 } 288 /* if we have no active crtcs, then drop the power ref 289 we got before */ 290 if (!active && adev->have_disp_power_ref) { 291 pm_runtime_put_autosuspend(dev->dev); 292 adev->have_disp_power_ref = false; 293 } 294 295 /* drop the power reference we got coming in here */ 296 pm_runtime_put_autosuspend(dev->dev); 297 return ret; 298 } 299 300 static const char *encoder_names[41] = { 301 "NONE", 302 "INTERNAL_LVDS", 303 "INTERNAL_TMDS1", 304 "INTERNAL_TMDS2", 305 "INTERNAL_DAC1", 306 "INTERNAL_DAC2", 307 "INTERNAL_SDVOA", 308 "INTERNAL_SDVOB", 309 "SI170B", 310 "CH7303", 311 "CH7301", 312 "INTERNAL_DVO1", 313 "EXTERNAL_SDVOA", 314 "EXTERNAL_SDVOB", 315 "TITFP513", 316 "INTERNAL_LVTM1", 317 "VT1623", 318 "HDMI_SI1930", 319 "HDMI_INTERNAL", 320 "INTERNAL_KLDSCP_TMDS1", 321 "INTERNAL_KLDSCP_DVO1", 322 "INTERNAL_KLDSCP_DAC1", 323 "INTERNAL_KLDSCP_DAC2", 324 "SI178", 325 "MVPU_FPGA", 326 "INTERNAL_DDI", 327 "VT1625", 328 "HDMI_SI1932", 329 "DP_AN9801", 330 "DP_DP501", 331 "INTERNAL_UNIPHY", 332 "INTERNAL_KLDSCP_LVTMA", 333 "INTERNAL_UNIPHY1", 334 "INTERNAL_UNIPHY2", 335 "NUTMEG", 336 "TRAVIS", 337 "INTERNAL_VCE", 338 "INTERNAL_UNIPHY3", 339 "HDMI_ANX9805", 340 "INTERNAL_AMCLK", 341 "VIRTUAL", 342 }; 343 344 static const char *hpd_names[6] = { 345 "HPD1", 346 "HPD2", 347 "HPD3", 348 "HPD4", 349 "HPD5", 350 "HPD6", 351 }; 352 353 void amdgpu_print_display_setup(struct drm_device *dev) 354 { 355 struct drm_connector *connector; 356 struct amdgpu_connector *amdgpu_connector; 357 struct drm_encoder *encoder; 358 struct amdgpu_encoder *amdgpu_encoder; 359 uint32_t devices; 360 int i = 0; 361 362 DRM_INFO("AMDGPU Display Connectors\n"); 363 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 364 amdgpu_connector = to_amdgpu_connector(connector); 365 DRM_INFO("Connector %d:\n", i); 366 DRM_INFO(" %s\n", connector->name); 367 if (amdgpu_connector->hpd.hpd != AMDGPU_HPD_NONE) 368 DRM_INFO(" %s\n", hpd_names[amdgpu_connector->hpd.hpd]); 369 if (amdgpu_connector->ddc_bus) { 370 DRM_INFO(" DDC: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n", 371 amdgpu_connector->ddc_bus->rec.mask_clk_reg, 372 amdgpu_connector->ddc_bus->rec.mask_data_reg, 373 amdgpu_connector->ddc_bus->rec.a_clk_reg, 374 amdgpu_connector->ddc_bus->rec.a_data_reg, 375 amdgpu_connector->ddc_bus->rec.en_clk_reg, 376 amdgpu_connector->ddc_bus->rec.en_data_reg, 377 amdgpu_connector->ddc_bus->rec.y_clk_reg, 378 amdgpu_connector->ddc_bus->rec.y_data_reg); 379 if (amdgpu_connector->router.ddc_valid) 380 DRM_INFO(" DDC Router 0x%x/0x%x\n", 381 amdgpu_connector->router.ddc_mux_control_pin, 382 amdgpu_connector->router.ddc_mux_state); 383 if (amdgpu_connector->router.cd_valid) 384 DRM_INFO(" Clock/Data Router 0x%x/0x%x\n", 385 amdgpu_connector->router.cd_mux_control_pin, 386 amdgpu_connector->router.cd_mux_state); 387 } else { 388 if (connector->connector_type == DRM_MODE_CONNECTOR_VGA || 389 connector->connector_type == DRM_MODE_CONNECTOR_DVII || 390 connector->connector_type == DRM_MODE_CONNECTOR_DVID || 391 connector->connector_type == DRM_MODE_CONNECTOR_DVIA || 392 connector->connector_type == DRM_MODE_CONNECTOR_HDMIA || 393 connector->connector_type == DRM_MODE_CONNECTOR_HDMIB) 394 DRM_INFO(" DDC: no ddc bus - possible BIOS bug - please report to xorg-driver-ati@lists.x.org\n"); 395 } 396 DRM_INFO(" Encoders:\n"); 397 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 398 amdgpu_encoder = to_amdgpu_encoder(encoder); 399 devices = amdgpu_encoder->devices & amdgpu_connector->devices; 400 if (devices) { 401 if (devices & ATOM_DEVICE_CRT1_SUPPORT) 402 DRM_INFO(" CRT1: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 403 if (devices & ATOM_DEVICE_CRT2_SUPPORT) 404 DRM_INFO(" CRT2: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 405 if (devices & ATOM_DEVICE_LCD1_SUPPORT) 406 DRM_INFO(" LCD1: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 407 if (devices & ATOM_DEVICE_DFP1_SUPPORT) 408 DRM_INFO(" DFP1: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 409 if (devices & ATOM_DEVICE_DFP2_SUPPORT) 410 DRM_INFO(" DFP2: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 411 if (devices & ATOM_DEVICE_DFP3_SUPPORT) 412 DRM_INFO(" DFP3: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 413 if (devices & ATOM_DEVICE_DFP4_SUPPORT) 414 DRM_INFO(" DFP4: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 415 if (devices & ATOM_DEVICE_DFP5_SUPPORT) 416 DRM_INFO(" DFP5: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 417 if (devices & ATOM_DEVICE_DFP6_SUPPORT) 418 DRM_INFO(" DFP6: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 419 if (devices & ATOM_DEVICE_TV1_SUPPORT) 420 DRM_INFO(" TV1: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 421 if (devices & ATOM_DEVICE_CV_SUPPORT) 422 DRM_INFO(" CV: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 423 } 424 } 425 i++; 426 } 427 } 428 429 /** 430 * amdgpu_ddc_probe 431 * 432 */ 433 bool amdgpu_ddc_probe(struct amdgpu_connector *amdgpu_connector, 434 bool use_aux) 435 { 436 u8 out = 0x0; 437 u8 buf[8]; 438 int ret; 439 struct i2c_msg msgs[] = { 440 { 441 .addr = DDC_ADDR, 442 .flags = 0, 443 .len = 1, 444 .buf = &out, 445 }, 446 { 447 .addr = DDC_ADDR, 448 .flags = I2C_M_RD, 449 .len = 8, 450 .buf = buf, 451 } 452 }; 453 454 /* on hw with routers, select right port */ 455 if (amdgpu_connector->router.ddc_valid) 456 amdgpu_i2c_router_select_ddc_port(amdgpu_connector); 457 458 if (use_aux) { 459 ret = i2c_transfer(&amdgpu_connector->ddc_bus->aux.ddc, msgs, 2); 460 } else { 461 ret = i2c_transfer(&amdgpu_connector->ddc_bus->adapter, msgs, 2); 462 } 463 464 if (ret != 2) 465 /* Couldn't find an accessible DDC on this connector */ 466 return false; 467 /* Probe also for valid EDID header 468 * EDID header starts with: 469 * 0x00,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x00. 470 * Only the first 6 bytes must be valid as 471 * drm_edid_block_valid() can fix the last 2 bytes */ 472 if (drm_edid_header_is_valid(buf) < 6) { 473 /* Couldn't find an accessible EDID on this 474 * connector */ 475 return false; 476 } 477 return true; 478 } 479 480 static void amdgpu_user_framebuffer_destroy(struct drm_framebuffer *fb) 481 { 482 struct amdgpu_framebuffer *amdgpu_fb = to_amdgpu_framebuffer(fb); 483 484 drm_gem_object_unreference_unlocked(amdgpu_fb->obj); 485 drm_framebuffer_cleanup(fb); 486 kfree(amdgpu_fb); 487 } 488 489 static int amdgpu_user_framebuffer_create_handle(struct drm_framebuffer *fb, 490 struct drm_file *file_priv, 491 unsigned int *handle) 492 { 493 struct amdgpu_framebuffer *amdgpu_fb = to_amdgpu_framebuffer(fb); 494 495 return drm_gem_handle_create(file_priv, amdgpu_fb->obj, handle); 496 } 497 498 static const struct drm_framebuffer_funcs amdgpu_fb_funcs = { 499 .destroy = amdgpu_user_framebuffer_destroy, 500 .create_handle = amdgpu_user_framebuffer_create_handle, 501 }; 502 503 int 504 amdgpu_framebuffer_init(struct drm_device *dev, 505 struct amdgpu_framebuffer *rfb, 506 const struct drm_mode_fb_cmd2 *mode_cmd, 507 struct drm_gem_object *obj) 508 { 509 int ret; 510 rfb->obj = obj; 511 drm_helper_mode_fill_fb_struct(dev, &rfb->base, mode_cmd); 512 ret = drm_framebuffer_init(dev, &rfb->base, &amdgpu_fb_funcs); 513 if (ret) { 514 rfb->obj = NULL; 515 return ret; 516 } 517 return 0; 518 } 519 520 static struct drm_framebuffer * 521 amdgpu_user_framebuffer_create(struct drm_device *dev, 522 struct drm_file *file_priv, 523 const struct drm_mode_fb_cmd2 *mode_cmd) 524 { 525 struct drm_gem_object *obj; 526 struct amdgpu_framebuffer *amdgpu_fb; 527 int ret; 528 529 obj = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]); 530 if (obj == NULL) { 531 dev_err(&dev->pdev->dev, "No GEM object associated to handle 0x%08X, " 532 "can't create framebuffer\n", mode_cmd->handles[0]); 533 return ERR_PTR(-ENOENT); 534 } 535 536 amdgpu_fb = kzalloc(sizeof(*amdgpu_fb), GFP_KERNEL); 537 if (amdgpu_fb == NULL) { 538 drm_gem_object_unreference_unlocked(obj); 539 return ERR_PTR(-ENOMEM); 540 } 541 542 ret = amdgpu_framebuffer_init(dev, amdgpu_fb, mode_cmd, obj); 543 if (ret) { 544 kfree(amdgpu_fb); 545 drm_gem_object_unreference_unlocked(obj); 546 return ERR_PTR(ret); 547 } 548 549 return &amdgpu_fb->base; 550 } 551 552 static void amdgpu_output_poll_changed(struct drm_device *dev) 553 { 554 struct amdgpu_device *adev = dev->dev_private; 555 amdgpu_fb_output_poll_changed(adev); 556 } 557 558 const struct drm_mode_config_funcs amdgpu_mode_funcs = { 559 .fb_create = amdgpu_user_framebuffer_create, 560 .output_poll_changed = amdgpu_output_poll_changed 561 }; 562 563 static const struct drm_prop_enum_list amdgpu_underscan_enum_list[] = 564 { { UNDERSCAN_OFF, "off" }, 565 { UNDERSCAN_ON, "on" }, 566 { UNDERSCAN_AUTO, "auto" }, 567 }; 568 569 static const struct drm_prop_enum_list amdgpu_audio_enum_list[] = 570 { { AMDGPU_AUDIO_DISABLE, "off" }, 571 { AMDGPU_AUDIO_ENABLE, "on" }, 572 { AMDGPU_AUDIO_AUTO, "auto" }, 573 }; 574 575 /* XXX support different dither options? spatial, temporal, both, etc. */ 576 static const struct drm_prop_enum_list amdgpu_dither_enum_list[] = 577 { { AMDGPU_FMT_DITHER_DISABLE, "off" }, 578 { AMDGPU_FMT_DITHER_ENABLE, "on" }, 579 }; 580 581 int amdgpu_modeset_create_props(struct amdgpu_device *adev) 582 { 583 int sz; 584 585 adev->mode_info.coherent_mode_property = 586 drm_property_create_range(adev->ddev, 0 , "coherent", 0, 1); 587 if (!adev->mode_info.coherent_mode_property) 588 return -ENOMEM; 589 590 adev->mode_info.load_detect_property = 591 drm_property_create_range(adev->ddev, 0, "load detection", 0, 1); 592 if (!adev->mode_info.load_detect_property) 593 return -ENOMEM; 594 595 drm_mode_create_scaling_mode_property(adev->ddev); 596 597 sz = ARRAY_SIZE(amdgpu_underscan_enum_list); 598 adev->mode_info.underscan_property = 599 drm_property_create_enum(adev->ddev, 0, 600 "underscan", 601 amdgpu_underscan_enum_list, sz); 602 603 adev->mode_info.underscan_hborder_property = 604 drm_property_create_range(adev->ddev, 0, 605 "underscan hborder", 0, 128); 606 if (!adev->mode_info.underscan_hborder_property) 607 return -ENOMEM; 608 609 adev->mode_info.underscan_vborder_property = 610 drm_property_create_range(adev->ddev, 0, 611 "underscan vborder", 0, 128); 612 if (!adev->mode_info.underscan_vborder_property) 613 return -ENOMEM; 614 615 sz = ARRAY_SIZE(amdgpu_audio_enum_list); 616 adev->mode_info.audio_property = 617 drm_property_create_enum(adev->ddev, 0, 618 "audio", 619 amdgpu_audio_enum_list, sz); 620 621 sz = ARRAY_SIZE(amdgpu_dither_enum_list); 622 adev->mode_info.dither_property = 623 drm_property_create_enum(adev->ddev, 0, 624 "dither", 625 amdgpu_dither_enum_list, sz); 626 627 return 0; 628 } 629 630 void amdgpu_update_display_priority(struct amdgpu_device *adev) 631 { 632 /* adjustment options for the display watermarks */ 633 if ((amdgpu_disp_priority == 0) || (amdgpu_disp_priority > 2)) 634 adev->mode_info.disp_priority = 0; 635 else 636 adev->mode_info.disp_priority = amdgpu_disp_priority; 637 638 } 639 640 static bool is_hdtv_mode(const struct drm_display_mode *mode) 641 { 642 /* try and guess if this is a tv or a monitor */ 643 if ((mode->vdisplay == 480 && mode->hdisplay == 720) || /* 480p */ 644 (mode->vdisplay == 576) || /* 576p */ 645 (mode->vdisplay == 720) || /* 720p */ 646 (mode->vdisplay == 1080)) /* 1080p */ 647 return true; 648 else 649 return false; 650 } 651 652 bool amdgpu_crtc_scaling_mode_fixup(struct drm_crtc *crtc, 653 const struct drm_display_mode *mode, 654 struct drm_display_mode *adjusted_mode) 655 { 656 struct drm_device *dev = crtc->dev; 657 struct drm_encoder *encoder; 658 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); 659 struct amdgpu_encoder *amdgpu_encoder; 660 struct drm_connector *connector; 661 struct amdgpu_connector *amdgpu_connector; 662 u32 src_v = 1, dst_v = 1; 663 u32 src_h = 1, dst_h = 1; 664 665 amdgpu_crtc->h_border = 0; 666 amdgpu_crtc->v_border = 0; 667 668 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 669 if (encoder->crtc != crtc) 670 continue; 671 amdgpu_encoder = to_amdgpu_encoder(encoder); 672 connector = amdgpu_get_connector_for_encoder(encoder); 673 amdgpu_connector = to_amdgpu_connector(connector); 674 675 /* set scaling */ 676 if (amdgpu_encoder->rmx_type == RMX_OFF) 677 amdgpu_crtc->rmx_type = RMX_OFF; 678 else if (mode->hdisplay < amdgpu_encoder->native_mode.hdisplay || 679 mode->vdisplay < amdgpu_encoder->native_mode.vdisplay) 680 amdgpu_crtc->rmx_type = amdgpu_encoder->rmx_type; 681 else 682 amdgpu_crtc->rmx_type = RMX_OFF; 683 /* copy native mode */ 684 memcpy(&amdgpu_crtc->native_mode, 685 &amdgpu_encoder->native_mode, 686 sizeof(struct drm_display_mode)); 687 src_v = crtc->mode.vdisplay; 688 dst_v = amdgpu_crtc->native_mode.vdisplay; 689 src_h = crtc->mode.hdisplay; 690 dst_h = amdgpu_crtc->native_mode.hdisplay; 691 692 /* fix up for overscan on hdmi */ 693 if ((!(mode->flags & DRM_MODE_FLAG_INTERLACE)) && 694 ((amdgpu_encoder->underscan_type == UNDERSCAN_ON) || 695 ((amdgpu_encoder->underscan_type == UNDERSCAN_AUTO) && 696 drm_detect_hdmi_monitor(amdgpu_connector_edid(connector)) && 697 is_hdtv_mode(mode)))) { 698 if (amdgpu_encoder->underscan_hborder != 0) 699 amdgpu_crtc->h_border = amdgpu_encoder->underscan_hborder; 700 else 701 amdgpu_crtc->h_border = (mode->hdisplay >> 5) + 16; 702 if (amdgpu_encoder->underscan_vborder != 0) 703 amdgpu_crtc->v_border = amdgpu_encoder->underscan_vborder; 704 else 705 amdgpu_crtc->v_border = (mode->vdisplay >> 5) + 16; 706 amdgpu_crtc->rmx_type = RMX_FULL; 707 src_v = crtc->mode.vdisplay; 708 dst_v = crtc->mode.vdisplay - (amdgpu_crtc->v_border * 2); 709 src_h = crtc->mode.hdisplay; 710 dst_h = crtc->mode.hdisplay - (amdgpu_crtc->h_border * 2); 711 } 712 } 713 if (amdgpu_crtc->rmx_type != RMX_OFF) { 714 fixed20_12 a, b; 715 a.full = dfixed_const(src_v); 716 b.full = dfixed_const(dst_v); 717 amdgpu_crtc->vsc.full = dfixed_div(a, b); 718 a.full = dfixed_const(src_h); 719 b.full = dfixed_const(dst_h); 720 amdgpu_crtc->hsc.full = dfixed_div(a, b); 721 } else { 722 amdgpu_crtc->vsc.full = dfixed_const(1); 723 amdgpu_crtc->hsc.full = dfixed_const(1); 724 } 725 return true; 726 } 727 728 /* 729 * Retrieve current video scanout position of crtc on a given gpu, and 730 * an optional accurate timestamp of when query happened. 731 * 732 * \param dev Device to query. 733 * \param pipe Crtc to query. 734 * \param flags Flags from caller (DRM_CALLED_FROM_VBLIRQ or 0). 735 * For driver internal use only also supports these flags: 736 * 737 * USE_REAL_VBLANKSTART to use the real start of vblank instead 738 * of a fudged earlier start of vblank. 739 * 740 * GET_DISTANCE_TO_VBLANKSTART to return distance to the 741 * fudged earlier start of vblank in *vpos and the distance 742 * to true start of vblank in *hpos. 743 * 744 * \param *vpos Location where vertical scanout position should be stored. 745 * \param *hpos Location where horizontal scanout position should go. 746 * \param *stime Target location for timestamp taken immediately before 747 * scanout position query. Can be NULL to skip timestamp. 748 * \param *etime Target location for timestamp taken immediately after 749 * scanout position query. Can be NULL to skip timestamp. 750 * 751 * Returns vpos as a positive number while in active scanout area. 752 * Returns vpos as a negative number inside vblank, counting the number 753 * of scanlines to go until end of vblank, e.g., -1 means "one scanline 754 * until start of active scanout / end of vblank." 755 * 756 * \return Flags, or'ed together as follows: 757 * 758 * DRM_SCANOUTPOS_VALID = Query successful. 759 * DRM_SCANOUTPOS_INVBL = Inside vblank. 760 * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of 761 * this flag means that returned position may be offset by a constant but 762 * unknown small number of scanlines wrt. real scanout position. 763 * 764 */ 765 int amdgpu_get_crtc_scanoutpos(struct drm_device *dev, unsigned int pipe, 766 unsigned int flags, int *vpos, int *hpos, 767 ktime_t *stime, ktime_t *etime, 768 const struct drm_display_mode *mode) 769 { 770 u32 vbl = 0, position = 0; 771 int vbl_start, vbl_end, vtotal, ret = 0; 772 bool in_vbl = true; 773 774 struct amdgpu_device *adev = dev->dev_private; 775 776 /* preempt_disable_rt() should go right here in PREEMPT_RT patchset. */ 777 778 /* Get optional system timestamp before query. */ 779 if (stime) 780 *stime = ktime_get(); 781 782 if (amdgpu_display_page_flip_get_scanoutpos(adev, pipe, &vbl, &position) == 0) 783 ret |= DRM_SCANOUTPOS_VALID; 784 785 /* Get optional system timestamp after query. */ 786 if (etime) 787 *etime = ktime_get(); 788 789 /* preempt_enable_rt() should go right here in PREEMPT_RT patchset. */ 790 791 /* Decode into vertical and horizontal scanout position. */ 792 *vpos = position & 0x1fff; 793 *hpos = (position >> 16) & 0x1fff; 794 795 /* Valid vblank area boundaries from gpu retrieved? */ 796 if (vbl > 0) { 797 /* Yes: Decode. */ 798 ret |= DRM_SCANOUTPOS_ACCURATE; 799 vbl_start = vbl & 0x1fff; 800 vbl_end = (vbl >> 16) & 0x1fff; 801 } 802 else { 803 /* No: Fake something reasonable which gives at least ok results. */ 804 vbl_start = mode->crtc_vdisplay; 805 vbl_end = 0; 806 } 807 808 /* Called from driver internal vblank counter query code? */ 809 if (flags & GET_DISTANCE_TO_VBLANKSTART) { 810 /* Caller wants distance from real vbl_start in *hpos */ 811 *hpos = *vpos - vbl_start; 812 } 813 814 /* Fudge vblank to start a few scanlines earlier to handle the 815 * problem that vblank irqs fire a few scanlines before start 816 * of vblank. Some driver internal callers need the true vblank 817 * start to be used and signal this via the USE_REAL_VBLANKSTART flag. 818 * 819 * The cause of the "early" vblank irq is that the irq is triggered 820 * by the line buffer logic when the line buffer read position enters 821 * the vblank, whereas our crtc scanout position naturally lags the 822 * line buffer read position. 823 */ 824 if (!(flags & USE_REAL_VBLANKSTART)) 825 vbl_start -= adev->mode_info.crtcs[pipe]->lb_vblank_lead_lines; 826 827 /* Test scanout position against vblank region. */ 828 if ((*vpos < vbl_start) && (*vpos >= vbl_end)) 829 in_vbl = false; 830 831 /* In vblank? */ 832 if (in_vbl) 833 ret |= DRM_SCANOUTPOS_IN_VBLANK; 834 835 /* Called from driver internal vblank counter query code? */ 836 if (flags & GET_DISTANCE_TO_VBLANKSTART) { 837 /* Caller wants distance from fudged earlier vbl_start */ 838 *vpos -= vbl_start; 839 return ret; 840 } 841 842 /* Check if inside vblank area and apply corrective offsets: 843 * vpos will then be >=0 in video scanout area, but negative 844 * within vblank area, counting down the number of lines until 845 * start of scanout. 846 */ 847 848 /* Inside "upper part" of vblank area? Apply corrective offset if so: */ 849 if (in_vbl && (*vpos >= vbl_start)) { 850 vtotal = mode->crtc_vtotal; 851 *vpos = *vpos - vtotal; 852 } 853 854 /* Correct for shifted end of vbl at vbl_end. */ 855 *vpos = *vpos - vbl_end; 856 857 return ret; 858 } 859 860 int amdgpu_crtc_idx_to_irq_type(struct amdgpu_device *adev, int crtc) 861 { 862 if (crtc < 0 || crtc >= adev->mode_info.num_crtc) 863 return AMDGPU_CRTC_IRQ_NONE; 864 865 switch (crtc) { 866 case 0: 867 return AMDGPU_CRTC_IRQ_VBLANK1; 868 case 1: 869 return AMDGPU_CRTC_IRQ_VBLANK2; 870 case 2: 871 return AMDGPU_CRTC_IRQ_VBLANK3; 872 case 3: 873 return AMDGPU_CRTC_IRQ_VBLANK4; 874 case 4: 875 return AMDGPU_CRTC_IRQ_VBLANK5; 876 case 5: 877 return AMDGPU_CRTC_IRQ_VBLANK6; 878 default: 879 return AMDGPU_CRTC_IRQ_NONE; 880 } 881 } 882