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 <asm/div64.h> 34 35 #include <linux/pci.h> 36 #include <linux/pm_runtime.h> 37 #include <drm/drm_crtc_helper.h> 38 #include <drm/drm_edid.h> 39 #include <drm/drm_gem_framebuffer_helper.h> 40 #include <drm/drm_fb_helper.h> 41 #include <drm/drm_fourcc.h> 42 #include <drm/drm_vblank.h> 43 44 static void amdgpu_display_flip_callback(struct dma_fence *f, 45 struct dma_fence_cb *cb) 46 { 47 struct amdgpu_flip_work *work = 48 container_of(cb, struct amdgpu_flip_work, cb); 49 50 dma_fence_put(f); 51 schedule_work(&work->flip_work.work); 52 } 53 54 static bool amdgpu_display_flip_handle_fence(struct amdgpu_flip_work *work, 55 struct dma_fence **f) 56 { 57 struct dma_fence *fence= *f; 58 59 if (fence == NULL) 60 return false; 61 62 *f = NULL; 63 64 if (!dma_fence_add_callback(fence, &work->cb, 65 amdgpu_display_flip_callback)) 66 return true; 67 68 dma_fence_put(fence); 69 return false; 70 } 71 72 static void amdgpu_display_flip_work_func(struct work_struct *__work) 73 { 74 struct delayed_work *delayed_work = 75 container_of(__work, struct delayed_work, work); 76 struct amdgpu_flip_work *work = 77 container_of(delayed_work, struct amdgpu_flip_work, flip_work); 78 struct amdgpu_device *adev = work->adev; 79 struct amdgpu_crtc *amdgpu_crtc = adev->mode_info.crtcs[work->crtc_id]; 80 81 struct drm_crtc *crtc = &amdgpu_crtc->base; 82 unsigned long flags; 83 unsigned i; 84 int vpos, hpos; 85 86 if (amdgpu_display_flip_handle_fence(work, &work->excl)) 87 return; 88 89 for (i = 0; i < work->shared_count; ++i) 90 if (amdgpu_display_flip_handle_fence(work, &work->shared[i])) 91 return; 92 93 /* Wait until we're out of the vertical blank period before the one 94 * targeted by the flip 95 */ 96 if (amdgpu_crtc->enabled && 97 (amdgpu_display_get_crtc_scanoutpos(adev_to_drm(adev), work->crtc_id, 0, 98 &vpos, &hpos, NULL, NULL, 99 &crtc->hwmode) 100 & (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_IN_VBLANK)) == 101 (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_IN_VBLANK) && 102 (int)(work->target_vblank - 103 amdgpu_get_vblank_counter_kms(crtc)) > 0) { 104 schedule_delayed_work(&work->flip_work, usecs_to_jiffies(1000)); 105 return; 106 } 107 108 /* We borrow the event spin lock for protecting flip_status */ 109 spin_lock_irqsave(&crtc->dev->event_lock, flags); 110 111 /* Do the flip (mmio) */ 112 adev->mode_info.funcs->page_flip(adev, work->crtc_id, work->base, work->async); 113 114 /* Set the flip status */ 115 amdgpu_crtc->pflip_status = AMDGPU_FLIP_SUBMITTED; 116 spin_unlock_irqrestore(&crtc->dev->event_lock, flags); 117 118 119 DRM_DEBUG_DRIVER("crtc:%d[%p], pflip_stat:AMDGPU_FLIP_SUBMITTED, work: %p,\n", 120 amdgpu_crtc->crtc_id, amdgpu_crtc, work); 121 122 } 123 124 /* 125 * Handle unpin events outside the interrupt handler proper. 126 */ 127 static void amdgpu_display_unpin_work_func(struct work_struct *__work) 128 { 129 struct amdgpu_flip_work *work = 130 container_of(__work, struct amdgpu_flip_work, unpin_work); 131 int r; 132 133 /* unpin of the old buffer */ 134 r = amdgpu_bo_reserve(work->old_abo, true); 135 if (likely(r == 0)) { 136 amdgpu_bo_unpin(work->old_abo); 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 = drm_to_adev(dev); 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, 193 amdgpu_display_supported_domains(adev, new_abo->flags)); 194 if (unlikely(r != 0)) { 195 DRM_ERROR("failed to pin new abo buffer before flip\n"); 196 goto unreserve; 197 } 198 } 199 200 r = amdgpu_ttm_alloc_gart(&new_abo->tbo); 201 if (unlikely(r != 0)) { 202 DRM_ERROR("%p bind failed\n", new_abo); 203 goto unpin; 204 } 205 206 r = dma_resv_get_fences_rcu(new_abo->tbo.base.resv, &work->excl, 207 &work->shared_count, 208 &work->shared); 209 if (unlikely(r != 0)) { 210 DRM_ERROR("failed to get fences for buffer\n"); 211 goto unpin; 212 } 213 214 amdgpu_bo_get_tiling_flags(new_abo, &tiling_flags); 215 amdgpu_bo_unreserve(new_abo); 216 217 if (!adev->enable_virtual_display) 218 work->base = amdgpu_bo_gpu_offset(new_abo); 219 work->target_vblank = target - (uint32_t)drm_crtc_vblank_count(crtc) + 220 amdgpu_get_vblank_counter_kms(crtc); 221 222 /* we borrow the event spin lock for protecting flip_wrok */ 223 spin_lock_irqsave(&crtc->dev->event_lock, flags); 224 if (amdgpu_crtc->pflip_status != AMDGPU_FLIP_NONE) { 225 DRM_DEBUG_DRIVER("flip queue: crtc already busy\n"); 226 spin_unlock_irqrestore(&crtc->dev->event_lock, flags); 227 r = -EBUSY; 228 goto pflip_cleanup; 229 } 230 231 amdgpu_crtc->pflip_status = AMDGPU_FLIP_PENDING; 232 amdgpu_crtc->pflip_works = work; 233 234 235 DRM_DEBUG_DRIVER("crtc:%d[%p], pflip_stat:AMDGPU_FLIP_PENDING, work: %p,\n", 236 amdgpu_crtc->crtc_id, amdgpu_crtc, work); 237 /* update crtc fb */ 238 crtc->primary->fb = fb; 239 spin_unlock_irqrestore(&crtc->dev->event_lock, flags); 240 amdgpu_display_flip_work_func(&work->flip_work.work); 241 return 0; 242 243 pflip_cleanup: 244 if (unlikely(amdgpu_bo_reserve(new_abo, false) != 0)) { 245 DRM_ERROR("failed to reserve new abo in error path\n"); 246 goto cleanup; 247 } 248 unpin: 249 if (!adev->enable_virtual_display) 250 amdgpu_bo_unpin(new_abo); 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 goto out; 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 = drm_to_adev(dev); 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 out: 307 /* drop the power reference we got coming in here */ 308 pm_runtime_put_autosuspend(dev->dev); 309 return ret; 310 } 311 312 static const char *encoder_names[41] = { 313 "NONE", 314 "INTERNAL_LVDS", 315 "INTERNAL_TMDS1", 316 "INTERNAL_TMDS2", 317 "INTERNAL_DAC1", 318 "INTERNAL_DAC2", 319 "INTERNAL_SDVOA", 320 "INTERNAL_SDVOB", 321 "SI170B", 322 "CH7303", 323 "CH7301", 324 "INTERNAL_DVO1", 325 "EXTERNAL_SDVOA", 326 "EXTERNAL_SDVOB", 327 "TITFP513", 328 "INTERNAL_LVTM1", 329 "VT1623", 330 "HDMI_SI1930", 331 "HDMI_INTERNAL", 332 "INTERNAL_KLDSCP_TMDS1", 333 "INTERNAL_KLDSCP_DVO1", 334 "INTERNAL_KLDSCP_DAC1", 335 "INTERNAL_KLDSCP_DAC2", 336 "SI178", 337 "MVPU_FPGA", 338 "INTERNAL_DDI", 339 "VT1625", 340 "HDMI_SI1932", 341 "DP_AN9801", 342 "DP_DP501", 343 "INTERNAL_UNIPHY", 344 "INTERNAL_KLDSCP_LVTMA", 345 "INTERNAL_UNIPHY1", 346 "INTERNAL_UNIPHY2", 347 "NUTMEG", 348 "TRAVIS", 349 "INTERNAL_VCE", 350 "INTERNAL_UNIPHY3", 351 "HDMI_ANX9805", 352 "INTERNAL_AMCLK", 353 "VIRTUAL", 354 }; 355 356 static const char *hpd_names[6] = { 357 "HPD1", 358 "HPD2", 359 "HPD3", 360 "HPD4", 361 "HPD5", 362 "HPD6", 363 }; 364 365 void amdgpu_display_print_display_setup(struct drm_device *dev) 366 { 367 struct drm_connector *connector; 368 struct amdgpu_connector *amdgpu_connector; 369 struct drm_encoder *encoder; 370 struct amdgpu_encoder *amdgpu_encoder; 371 struct drm_connector_list_iter iter; 372 uint32_t devices; 373 int i = 0; 374 375 drm_connector_list_iter_begin(dev, &iter); 376 DRM_INFO("AMDGPU Display Connectors\n"); 377 drm_for_each_connector_iter(connector, &iter) { 378 amdgpu_connector = to_amdgpu_connector(connector); 379 DRM_INFO("Connector %d:\n", i); 380 DRM_INFO(" %s\n", connector->name); 381 if (amdgpu_connector->hpd.hpd != AMDGPU_HPD_NONE) 382 DRM_INFO(" %s\n", hpd_names[amdgpu_connector->hpd.hpd]); 383 if (amdgpu_connector->ddc_bus) { 384 DRM_INFO(" DDC: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n", 385 amdgpu_connector->ddc_bus->rec.mask_clk_reg, 386 amdgpu_connector->ddc_bus->rec.mask_data_reg, 387 amdgpu_connector->ddc_bus->rec.a_clk_reg, 388 amdgpu_connector->ddc_bus->rec.a_data_reg, 389 amdgpu_connector->ddc_bus->rec.en_clk_reg, 390 amdgpu_connector->ddc_bus->rec.en_data_reg, 391 amdgpu_connector->ddc_bus->rec.y_clk_reg, 392 amdgpu_connector->ddc_bus->rec.y_data_reg); 393 if (amdgpu_connector->router.ddc_valid) 394 DRM_INFO(" DDC Router 0x%x/0x%x\n", 395 amdgpu_connector->router.ddc_mux_control_pin, 396 amdgpu_connector->router.ddc_mux_state); 397 if (amdgpu_connector->router.cd_valid) 398 DRM_INFO(" Clock/Data Router 0x%x/0x%x\n", 399 amdgpu_connector->router.cd_mux_control_pin, 400 amdgpu_connector->router.cd_mux_state); 401 } else { 402 if (connector->connector_type == DRM_MODE_CONNECTOR_VGA || 403 connector->connector_type == DRM_MODE_CONNECTOR_DVII || 404 connector->connector_type == DRM_MODE_CONNECTOR_DVID || 405 connector->connector_type == DRM_MODE_CONNECTOR_DVIA || 406 connector->connector_type == DRM_MODE_CONNECTOR_HDMIA || 407 connector->connector_type == DRM_MODE_CONNECTOR_HDMIB) 408 DRM_INFO(" DDC: no ddc bus - possible BIOS bug - please report to xorg-driver-ati@lists.x.org\n"); 409 } 410 DRM_INFO(" Encoders:\n"); 411 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 412 amdgpu_encoder = to_amdgpu_encoder(encoder); 413 devices = amdgpu_encoder->devices & amdgpu_connector->devices; 414 if (devices) { 415 if (devices & ATOM_DEVICE_CRT1_SUPPORT) 416 DRM_INFO(" CRT1: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 417 if (devices & ATOM_DEVICE_CRT2_SUPPORT) 418 DRM_INFO(" CRT2: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 419 if (devices & ATOM_DEVICE_LCD1_SUPPORT) 420 DRM_INFO(" LCD1: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 421 if (devices & ATOM_DEVICE_DFP1_SUPPORT) 422 DRM_INFO(" DFP1: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 423 if (devices & ATOM_DEVICE_DFP2_SUPPORT) 424 DRM_INFO(" DFP2: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 425 if (devices & ATOM_DEVICE_DFP3_SUPPORT) 426 DRM_INFO(" DFP3: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 427 if (devices & ATOM_DEVICE_DFP4_SUPPORT) 428 DRM_INFO(" DFP4: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 429 if (devices & ATOM_DEVICE_DFP5_SUPPORT) 430 DRM_INFO(" DFP5: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 431 if (devices & ATOM_DEVICE_DFP6_SUPPORT) 432 DRM_INFO(" DFP6: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 433 if (devices & ATOM_DEVICE_TV1_SUPPORT) 434 DRM_INFO(" TV1: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 435 if (devices & ATOM_DEVICE_CV_SUPPORT) 436 DRM_INFO(" CV: %s\n", encoder_names[amdgpu_encoder->encoder_id]); 437 } 438 } 439 i++; 440 } 441 drm_connector_list_iter_end(&iter); 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 uint64_t bo_flags) 498 { 499 uint32_t domain = AMDGPU_GEM_DOMAIN_VRAM; 500 501 #if defined(CONFIG_DRM_AMD_DC) 502 /* 503 * if amdgpu_bo_support_uswc returns false it means that USWC mappings 504 * is not supported for this board. But this mapping is required 505 * to avoid hang caused by placement of scanout BO in GTT on certain 506 * APUs. So force the BO placement to VRAM in case this architecture 507 * will not allow USWC mappings. 508 * Also, don't allow GTT domain if the BO doesn't have USWC flag set. 509 */ 510 if ((bo_flags & AMDGPU_GEM_CREATE_CPU_GTT_USWC) && 511 amdgpu_bo_support_uswc(bo_flags) && 512 amdgpu_device_asic_has_dc_support(adev->asic_type)) { 513 switch (adev->asic_type) { 514 case CHIP_CARRIZO: 515 case CHIP_STONEY: 516 domain |= AMDGPU_GEM_DOMAIN_GTT; 517 break; 518 case CHIP_RAVEN: 519 /* enable S/G on PCO and RV2 */ 520 if ((adev->apu_flags & AMD_APU_IS_RAVEN2) || 521 (adev->apu_flags & AMD_APU_IS_PICASSO)) 522 domain |= AMDGPU_GEM_DOMAIN_GTT; 523 break; 524 case CHIP_RENOIR: 525 case CHIP_VANGOGH: 526 domain |= AMDGPU_GEM_DOMAIN_GTT; 527 break; 528 529 default: 530 break; 531 } 532 } 533 #endif 534 535 return domain; 536 } 537 538 static const struct drm_format_info dcc_formats[] = { 539 { .format = DRM_FORMAT_XRGB8888, .depth = 24, .num_planes = 2, 540 .cpp = { 4, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, }, 541 { .format = DRM_FORMAT_XBGR8888, .depth = 24, .num_planes = 2, 542 .cpp = { 4, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, }, 543 { .format = DRM_FORMAT_ARGB8888, .depth = 32, .num_planes = 2, 544 .cpp = { 4, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, 545 .has_alpha = true, }, 546 { .format = DRM_FORMAT_ABGR8888, .depth = 32, .num_planes = 2, 547 .cpp = { 4, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, 548 .has_alpha = true, }, 549 { .format = DRM_FORMAT_BGRA8888, .depth = 32, .num_planes = 2, 550 .cpp = { 4, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, 551 .has_alpha = true, }, 552 { .format = DRM_FORMAT_XRGB2101010, .depth = 30, .num_planes = 2, 553 .cpp = { 4, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, }, 554 { .format = DRM_FORMAT_XBGR2101010, .depth = 30, .num_planes = 2, 555 .cpp = { 4, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, }, 556 { .format = DRM_FORMAT_ARGB2101010, .depth = 30, .num_planes = 2, 557 .cpp = { 4, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, 558 .has_alpha = true, }, 559 { .format = DRM_FORMAT_ABGR2101010, .depth = 30, .num_planes = 2, 560 .cpp = { 4, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, 561 .has_alpha = true, }, 562 { .format = DRM_FORMAT_RGB565, .depth = 16, .num_planes = 2, 563 .cpp = { 2, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, }, 564 }; 565 566 static const struct drm_format_info dcc_retile_formats[] = { 567 { .format = DRM_FORMAT_XRGB8888, .depth = 24, .num_planes = 3, 568 .cpp = { 4, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, }, 569 { .format = DRM_FORMAT_XBGR8888, .depth = 24, .num_planes = 3, 570 .cpp = { 4, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, }, 571 { .format = DRM_FORMAT_ARGB8888, .depth = 32, .num_planes = 3, 572 .cpp = { 4, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, 573 .has_alpha = true, }, 574 { .format = DRM_FORMAT_ABGR8888, .depth = 32, .num_planes = 3, 575 .cpp = { 4, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, 576 .has_alpha = true, }, 577 { .format = DRM_FORMAT_BGRA8888, .depth = 32, .num_planes = 3, 578 .cpp = { 4, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, 579 .has_alpha = true, }, 580 { .format = DRM_FORMAT_XRGB2101010, .depth = 30, .num_planes = 3, 581 .cpp = { 4, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, }, 582 { .format = DRM_FORMAT_XBGR2101010, .depth = 30, .num_planes = 3, 583 .cpp = { 4, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, }, 584 { .format = DRM_FORMAT_ARGB2101010, .depth = 30, .num_planes = 3, 585 .cpp = { 4, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, 586 .has_alpha = true, }, 587 { .format = DRM_FORMAT_ABGR2101010, .depth = 30, .num_planes = 3, 588 .cpp = { 4, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, 589 .has_alpha = true, }, 590 { .format = DRM_FORMAT_RGB565, .depth = 16, .num_planes = 3, 591 .cpp = { 2, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, }, 592 }; 593 594 static const struct drm_format_info * 595 lookup_format_info(const struct drm_format_info formats[], 596 int num_formats, u32 format) 597 { 598 int i; 599 600 for (i = 0; i < num_formats; i++) { 601 if (formats[i].format == format) 602 return &formats[i]; 603 } 604 605 return NULL; 606 } 607 608 const struct drm_format_info * 609 amdgpu_lookup_format_info(u32 format, uint64_t modifier) 610 { 611 if (!IS_AMD_FMT_MOD(modifier)) 612 return NULL; 613 614 if (AMD_FMT_MOD_GET(DCC_RETILE, modifier)) 615 return lookup_format_info(dcc_retile_formats, 616 ARRAY_SIZE(dcc_retile_formats), 617 format); 618 619 if (AMD_FMT_MOD_GET(DCC, modifier)) 620 return lookup_format_info(dcc_formats, ARRAY_SIZE(dcc_formats), 621 format); 622 623 /* returning NULL will cause the default format structs to be used. */ 624 return NULL; 625 } 626 627 628 /* 629 * Tries to extract the renderable DCC offset from the opaque metadata attached 630 * to the buffer. 631 */ 632 static int 633 extract_render_dcc_offset(struct amdgpu_device *adev, 634 struct drm_gem_object *obj, 635 uint64_t *offset) 636 { 637 struct amdgpu_bo *rbo; 638 int r = 0; 639 uint32_t metadata[10]; /* Something that fits a descriptor + header. */ 640 uint32_t size; 641 642 rbo = gem_to_amdgpu_bo(obj); 643 r = amdgpu_bo_reserve(rbo, false); 644 645 if (unlikely(r)) { 646 /* Don't show error message when returning -ERESTARTSYS */ 647 if (r != -ERESTARTSYS) 648 DRM_ERROR("Unable to reserve buffer: %d\n", r); 649 return r; 650 } 651 652 r = amdgpu_bo_get_metadata(rbo, metadata, sizeof(metadata), &size, NULL); 653 amdgpu_bo_unreserve(rbo); 654 655 if (r) 656 return r; 657 658 /* 659 * The first word is the metadata version, and we need space for at least 660 * the version + pci vendor+device id + 8 words for a descriptor. 661 */ 662 if (size < 40 || metadata[0] != 1) 663 return -EINVAL; 664 665 if (adev->family >= AMDGPU_FAMILY_NV) { 666 /* resource word 6/7 META_DATA_ADDRESS{_LO} */ 667 *offset = ((u64)metadata[9] << 16u) | 668 ((metadata[8] & 0xFF000000u) >> 16); 669 } else { 670 /* resource word 5/7 META_DATA_ADDRESS */ 671 *offset = ((u64)metadata[9] << 8u) | 672 ((u64)(metadata[7] & 0x1FE0000u) << 23); 673 } 674 675 return 0; 676 } 677 678 static int convert_tiling_flags_to_modifier(struct amdgpu_framebuffer *afb) 679 { 680 struct amdgpu_device *adev = drm_to_adev(afb->base.dev); 681 uint64_t modifier = 0; 682 683 if (!afb->tiling_flags || !AMDGPU_TILING_GET(afb->tiling_flags, SWIZZLE_MODE)) { 684 modifier = DRM_FORMAT_MOD_LINEAR; 685 } else { 686 int swizzle = AMDGPU_TILING_GET(afb->tiling_flags, SWIZZLE_MODE); 687 bool has_xor = swizzle >= 16; 688 int block_size_bits; 689 int version; 690 int pipe_xor_bits = 0; 691 int bank_xor_bits = 0; 692 int packers = 0; 693 int rb = 0; 694 int pipes = ilog2(adev->gfx.config.gb_addr_config_fields.num_pipes); 695 uint32_t dcc_offset = AMDGPU_TILING_GET(afb->tiling_flags, DCC_OFFSET_256B); 696 697 switch (swizzle >> 2) { 698 case 0: /* 256B */ 699 block_size_bits = 8; 700 break; 701 case 1: /* 4KiB */ 702 case 5: /* 4KiB _X */ 703 block_size_bits = 12; 704 break; 705 case 2: /* 64KiB */ 706 case 4: /* 64 KiB _T */ 707 case 6: /* 64 KiB _X */ 708 block_size_bits = 16; 709 break; 710 default: 711 /* RESERVED or VAR */ 712 return -EINVAL; 713 } 714 715 if (adev->asic_type >= CHIP_SIENNA_CICHLID) 716 version = AMD_FMT_MOD_TILE_VER_GFX10_RBPLUS; 717 else if (adev->family == AMDGPU_FAMILY_NV) 718 version = AMD_FMT_MOD_TILE_VER_GFX10; 719 else 720 version = AMD_FMT_MOD_TILE_VER_GFX9; 721 722 switch (swizzle & 3) { 723 case 0: /* Z microtiling */ 724 return -EINVAL; 725 case 1: /* S microtiling */ 726 if (!has_xor) 727 version = AMD_FMT_MOD_TILE_VER_GFX9; 728 break; 729 case 2: 730 if (!has_xor && afb->base.format->cpp[0] != 4) 731 version = AMD_FMT_MOD_TILE_VER_GFX9; 732 break; 733 case 3: 734 break; 735 } 736 737 if (has_xor) { 738 switch (version) { 739 case AMD_FMT_MOD_TILE_VER_GFX10_RBPLUS: 740 pipe_xor_bits = min(block_size_bits - 8, pipes); 741 packers = min(block_size_bits - 8 - pipe_xor_bits, 742 ilog2(adev->gfx.config.gb_addr_config_fields.num_pkrs)); 743 break; 744 case AMD_FMT_MOD_TILE_VER_GFX10: 745 pipe_xor_bits = min(block_size_bits - 8, pipes); 746 break; 747 case AMD_FMT_MOD_TILE_VER_GFX9: 748 rb = ilog2(adev->gfx.config.gb_addr_config_fields.num_se) + 749 ilog2(adev->gfx.config.gb_addr_config_fields.num_rb_per_se); 750 pipe_xor_bits = min(block_size_bits - 8, pipes + 751 ilog2(adev->gfx.config.gb_addr_config_fields.num_se)); 752 bank_xor_bits = min(block_size_bits - 8 - pipe_xor_bits, 753 ilog2(adev->gfx.config.gb_addr_config_fields.num_banks)); 754 break; 755 } 756 } 757 758 modifier = AMD_FMT_MOD | 759 AMD_FMT_MOD_SET(TILE, AMDGPU_TILING_GET(afb->tiling_flags, SWIZZLE_MODE)) | 760 AMD_FMT_MOD_SET(TILE_VERSION, version) | 761 AMD_FMT_MOD_SET(PIPE_XOR_BITS, pipe_xor_bits) | 762 AMD_FMT_MOD_SET(BANK_XOR_BITS, bank_xor_bits) | 763 AMD_FMT_MOD_SET(PACKERS, packers); 764 765 if (dcc_offset != 0) { 766 bool dcc_i64b = AMDGPU_TILING_GET(afb->tiling_flags, DCC_INDEPENDENT_64B) != 0; 767 bool dcc_i128b = version >= AMD_FMT_MOD_TILE_VER_GFX10_RBPLUS; 768 const struct drm_format_info *format_info; 769 u64 render_dcc_offset; 770 771 /* Enable constant encode on RAVEN2 and later. */ 772 bool dcc_constant_encode = adev->asic_type > CHIP_RAVEN || 773 (adev->asic_type == CHIP_RAVEN && 774 adev->external_rev_id >= 0x81); 775 776 int max_cblock_size = dcc_i64b ? AMD_FMT_MOD_DCC_BLOCK_64B : 777 dcc_i128b ? AMD_FMT_MOD_DCC_BLOCK_128B : 778 AMD_FMT_MOD_DCC_BLOCK_256B; 779 780 modifier |= AMD_FMT_MOD_SET(DCC, 1) | 781 AMD_FMT_MOD_SET(DCC_CONSTANT_ENCODE, dcc_constant_encode) | 782 AMD_FMT_MOD_SET(DCC_INDEPENDENT_64B, dcc_i64b) | 783 AMD_FMT_MOD_SET(DCC_INDEPENDENT_128B, dcc_i128b) | 784 AMD_FMT_MOD_SET(DCC_MAX_COMPRESSED_BLOCK, max_cblock_size); 785 786 afb->base.offsets[1] = dcc_offset * 256 + afb->base.offsets[0]; 787 afb->base.pitches[1] = 788 AMDGPU_TILING_GET(afb->tiling_flags, DCC_PITCH_MAX) + 1; 789 790 /* 791 * If the userspace driver uses retiling the tiling flags do not contain 792 * info on the renderable DCC buffer. Luckily the opaque metadata contains 793 * the info so we can try to extract it. The kernel does not use this info 794 * but we should convert it to a modifier plane for getfb2, so the 795 * userspace driver that gets it doesn't have to juggle around another DCC 796 * plane internally. 797 */ 798 if (extract_render_dcc_offset(adev, afb->base.obj[0], 799 &render_dcc_offset) == 0 && 800 render_dcc_offset != 0 && 801 render_dcc_offset != afb->base.offsets[1] && 802 render_dcc_offset < UINT_MAX) { 803 uint32_t dcc_block_bits; /* of base surface data */ 804 805 modifier |= AMD_FMT_MOD_SET(DCC_RETILE, 1); 806 afb->base.offsets[2] = render_dcc_offset; 807 808 if (adev->family >= AMDGPU_FAMILY_NV) { 809 int extra_pipe = 0; 810 811 if (adev->asic_type >= CHIP_SIENNA_CICHLID && 812 pipes == packers && pipes > 1) 813 extra_pipe = 1; 814 815 dcc_block_bits = max(20, 16 + pipes + extra_pipe); 816 } else { 817 modifier |= AMD_FMT_MOD_SET(RB, rb) | 818 AMD_FMT_MOD_SET(PIPE, pipes); 819 dcc_block_bits = max(20, 18 + rb); 820 } 821 822 dcc_block_bits -= ilog2(afb->base.format->cpp[0]); 823 afb->base.pitches[2] = ALIGN(afb->base.width, 824 1u << ((dcc_block_bits + 1) / 2)); 825 } 826 format_info = amdgpu_lookup_format_info(afb->base.format->format, 827 modifier); 828 if (!format_info) 829 return -EINVAL; 830 831 afb->base.format = format_info; 832 } 833 } 834 835 afb->base.modifier = modifier; 836 afb->base.flags |= DRM_MODE_FB_MODIFIERS; 837 return 0; 838 } 839 840 static int amdgpu_display_get_fb_info(const struct amdgpu_framebuffer *amdgpu_fb, 841 uint64_t *tiling_flags, bool *tmz_surface) 842 { 843 struct amdgpu_bo *rbo; 844 int r; 845 846 if (!amdgpu_fb) { 847 *tiling_flags = 0; 848 *tmz_surface = false; 849 return 0; 850 } 851 852 rbo = gem_to_amdgpu_bo(amdgpu_fb->base.obj[0]); 853 r = amdgpu_bo_reserve(rbo, false); 854 855 if (unlikely(r)) { 856 /* Don't show error message when returning -ERESTARTSYS */ 857 if (r != -ERESTARTSYS) 858 DRM_ERROR("Unable to reserve buffer: %d\n", r); 859 return r; 860 } 861 862 if (tiling_flags) 863 amdgpu_bo_get_tiling_flags(rbo, tiling_flags); 864 865 if (tmz_surface) 866 *tmz_surface = amdgpu_bo_encrypted(rbo); 867 868 amdgpu_bo_unreserve(rbo); 869 870 return r; 871 } 872 873 int amdgpu_display_framebuffer_init(struct drm_device *dev, 874 struct amdgpu_framebuffer *rfb, 875 const struct drm_mode_fb_cmd2 *mode_cmd, 876 struct drm_gem_object *obj) 877 { 878 int ret, i; 879 rfb->base.obj[0] = obj; 880 drm_helper_mode_fill_fb_struct(dev, &rfb->base, mode_cmd); 881 ret = drm_framebuffer_init(dev, &rfb->base, &amdgpu_fb_funcs); 882 if (ret) 883 goto fail; 884 885 /* 886 * This needs to happen before modifier conversion as that might change 887 * the number of planes. 888 */ 889 for (i = 1; i < rfb->base.format->num_planes; ++i) { 890 if (mode_cmd->handles[i] != mode_cmd->handles[0]) { 891 drm_dbg_kms(dev, "Plane 0 and %d have different BOs: %u vs. %u\n", 892 i, mode_cmd->handles[0], mode_cmd->handles[i]); 893 ret = -EINVAL; 894 goto fail; 895 } 896 } 897 898 ret = amdgpu_display_get_fb_info(rfb, &rfb->tiling_flags, &rfb->tmz_surface); 899 if (ret) 900 goto fail; 901 902 if (dev->mode_config.allow_fb_modifiers && 903 !(rfb->base.flags & DRM_MODE_FB_MODIFIERS)) { 904 ret = convert_tiling_flags_to_modifier(rfb); 905 if (ret) { 906 drm_dbg_kms(dev, "Failed to convert tiling flags 0x%llX to a modifier", 907 rfb->tiling_flags); 908 goto fail; 909 } 910 } 911 912 for (i = 1; i < rfb->base.format->num_planes; ++i) { 913 rfb->base.obj[i] = rfb->base.obj[0]; 914 drm_gem_object_get(rfb->base.obj[i]); 915 } 916 917 return 0; 918 919 fail: 920 rfb->base.obj[0] = NULL; 921 return ret; 922 } 923 924 struct drm_framebuffer * 925 amdgpu_display_user_framebuffer_create(struct drm_device *dev, 926 struct drm_file *file_priv, 927 const struct drm_mode_fb_cmd2 *mode_cmd) 928 { 929 struct amdgpu_framebuffer *amdgpu_fb; 930 struct drm_gem_object *obj; 931 struct amdgpu_bo *bo; 932 uint32_t domains; 933 int ret; 934 935 obj = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]); 936 if (obj == NULL) { 937 drm_dbg_kms(dev, "No GEM object associated to handle 0x%08X, " 938 "can't create framebuffer\n", mode_cmd->handles[0]); 939 return ERR_PTR(-ENOENT); 940 } 941 942 /* Handle is imported dma-buf, so cannot be migrated to VRAM for scanout */ 943 bo = gem_to_amdgpu_bo(obj); 944 domains = amdgpu_display_supported_domains(drm_to_adev(dev), bo->flags); 945 if (obj->import_attach && !(domains & AMDGPU_GEM_DOMAIN_GTT)) { 946 drm_dbg_kms(dev, "Cannot create framebuffer from imported dma_buf\n"); 947 return ERR_PTR(-EINVAL); 948 } 949 950 amdgpu_fb = kzalloc(sizeof(*amdgpu_fb), GFP_KERNEL); 951 if (amdgpu_fb == NULL) { 952 drm_gem_object_put(obj); 953 return ERR_PTR(-ENOMEM); 954 } 955 956 ret = amdgpu_display_framebuffer_init(dev, amdgpu_fb, mode_cmd, obj); 957 if (ret) { 958 kfree(amdgpu_fb); 959 drm_gem_object_put(obj); 960 return ERR_PTR(ret); 961 } 962 963 return &amdgpu_fb->base; 964 } 965 966 const struct drm_mode_config_funcs amdgpu_mode_funcs = { 967 .fb_create = amdgpu_display_user_framebuffer_create, 968 .output_poll_changed = drm_fb_helper_output_poll_changed, 969 }; 970 971 static const struct drm_prop_enum_list amdgpu_underscan_enum_list[] = 972 { { UNDERSCAN_OFF, "off" }, 973 { UNDERSCAN_ON, "on" }, 974 { UNDERSCAN_AUTO, "auto" }, 975 }; 976 977 static const struct drm_prop_enum_list amdgpu_audio_enum_list[] = 978 { { AMDGPU_AUDIO_DISABLE, "off" }, 979 { AMDGPU_AUDIO_ENABLE, "on" }, 980 { AMDGPU_AUDIO_AUTO, "auto" }, 981 }; 982 983 /* XXX support different dither options? spatial, temporal, both, etc. */ 984 static const struct drm_prop_enum_list amdgpu_dither_enum_list[] = 985 { { AMDGPU_FMT_DITHER_DISABLE, "off" }, 986 { AMDGPU_FMT_DITHER_ENABLE, "on" }, 987 }; 988 989 int amdgpu_display_modeset_create_props(struct amdgpu_device *adev) 990 { 991 int sz; 992 993 adev->mode_info.coherent_mode_property = 994 drm_property_create_range(adev_to_drm(adev), 0, "coherent", 0, 1); 995 if (!adev->mode_info.coherent_mode_property) 996 return -ENOMEM; 997 998 adev->mode_info.load_detect_property = 999 drm_property_create_range(adev_to_drm(adev), 0, "load detection", 0, 1); 1000 if (!adev->mode_info.load_detect_property) 1001 return -ENOMEM; 1002 1003 drm_mode_create_scaling_mode_property(adev_to_drm(adev)); 1004 1005 sz = ARRAY_SIZE(amdgpu_underscan_enum_list); 1006 adev->mode_info.underscan_property = 1007 drm_property_create_enum(adev_to_drm(adev), 0, 1008 "underscan", 1009 amdgpu_underscan_enum_list, sz); 1010 1011 adev->mode_info.underscan_hborder_property = 1012 drm_property_create_range(adev_to_drm(adev), 0, 1013 "underscan hborder", 0, 128); 1014 if (!adev->mode_info.underscan_hborder_property) 1015 return -ENOMEM; 1016 1017 adev->mode_info.underscan_vborder_property = 1018 drm_property_create_range(adev_to_drm(adev), 0, 1019 "underscan vborder", 0, 128); 1020 if (!adev->mode_info.underscan_vborder_property) 1021 return -ENOMEM; 1022 1023 sz = ARRAY_SIZE(amdgpu_audio_enum_list); 1024 adev->mode_info.audio_property = 1025 drm_property_create_enum(adev_to_drm(adev), 0, 1026 "audio", 1027 amdgpu_audio_enum_list, sz); 1028 1029 sz = ARRAY_SIZE(amdgpu_dither_enum_list); 1030 adev->mode_info.dither_property = 1031 drm_property_create_enum(adev_to_drm(adev), 0, 1032 "dither", 1033 amdgpu_dither_enum_list, sz); 1034 1035 if (amdgpu_device_has_dc_support(adev)) { 1036 adev->mode_info.abm_level_property = 1037 drm_property_create_range(adev_to_drm(adev), 0, 1038 "abm level", 0, 4); 1039 if (!adev->mode_info.abm_level_property) 1040 return -ENOMEM; 1041 } 1042 1043 return 0; 1044 } 1045 1046 void amdgpu_display_update_priority(struct amdgpu_device *adev) 1047 { 1048 /* adjustment options for the display watermarks */ 1049 if ((amdgpu_disp_priority == 0) || (amdgpu_disp_priority > 2)) 1050 adev->mode_info.disp_priority = 0; 1051 else 1052 adev->mode_info.disp_priority = amdgpu_disp_priority; 1053 1054 } 1055 1056 static bool amdgpu_display_is_hdtv_mode(const struct drm_display_mode *mode) 1057 { 1058 /* try and guess if this is a tv or a monitor */ 1059 if ((mode->vdisplay == 480 && mode->hdisplay == 720) || /* 480p */ 1060 (mode->vdisplay == 576) || /* 576p */ 1061 (mode->vdisplay == 720) || /* 720p */ 1062 (mode->vdisplay == 1080)) /* 1080p */ 1063 return true; 1064 else 1065 return false; 1066 } 1067 1068 bool amdgpu_display_crtc_scaling_mode_fixup(struct drm_crtc *crtc, 1069 const struct drm_display_mode *mode, 1070 struct drm_display_mode *adjusted_mode) 1071 { 1072 struct drm_device *dev = crtc->dev; 1073 struct drm_encoder *encoder; 1074 struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); 1075 struct amdgpu_encoder *amdgpu_encoder; 1076 struct drm_connector *connector; 1077 u32 src_v = 1, dst_v = 1; 1078 u32 src_h = 1, dst_h = 1; 1079 1080 amdgpu_crtc->h_border = 0; 1081 amdgpu_crtc->v_border = 0; 1082 1083 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 1084 if (encoder->crtc != crtc) 1085 continue; 1086 amdgpu_encoder = to_amdgpu_encoder(encoder); 1087 connector = amdgpu_get_connector_for_encoder(encoder); 1088 1089 /* set scaling */ 1090 if (amdgpu_encoder->rmx_type == RMX_OFF) 1091 amdgpu_crtc->rmx_type = RMX_OFF; 1092 else if (mode->hdisplay < amdgpu_encoder->native_mode.hdisplay || 1093 mode->vdisplay < amdgpu_encoder->native_mode.vdisplay) 1094 amdgpu_crtc->rmx_type = amdgpu_encoder->rmx_type; 1095 else 1096 amdgpu_crtc->rmx_type = RMX_OFF; 1097 /* copy native mode */ 1098 memcpy(&amdgpu_crtc->native_mode, 1099 &amdgpu_encoder->native_mode, 1100 sizeof(struct drm_display_mode)); 1101 src_v = crtc->mode.vdisplay; 1102 dst_v = amdgpu_crtc->native_mode.vdisplay; 1103 src_h = crtc->mode.hdisplay; 1104 dst_h = amdgpu_crtc->native_mode.hdisplay; 1105 1106 /* fix up for overscan on hdmi */ 1107 if ((!(mode->flags & DRM_MODE_FLAG_INTERLACE)) && 1108 ((amdgpu_encoder->underscan_type == UNDERSCAN_ON) || 1109 ((amdgpu_encoder->underscan_type == UNDERSCAN_AUTO) && 1110 drm_detect_hdmi_monitor(amdgpu_connector_edid(connector)) && 1111 amdgpu_display_is_hdtv_mode(mode)))) { 1112 if (amdgpu_encoder->underscan_hborder != 0) 1113 amdgpu_crtc->h_border = amdgpu_encoder->underscan_hborder; 1114 else 1115 amdgpu_crtc->h_border = (mode->hdisplay >> 5) + 16; 1116 if (amdgpu_encoder->underscan_vborder != 0) 1117 amdgpu_crtc->v_border = amdgpu_encoder->underscan_vborder; 1118 else 1119 amdgpu_crtc->v_border = (mode->vdisplay >> 5) + 16; 1120 amdgpu_crtc->rmx_type = RMX_FULL; 1121 src_v = crtc->mode.vdisplay; 1122 dst_v = crtc->mode.vdisplay - (amdgpu_crtc->v_border * 2); 1123 src_h = crtc->mode.hdisplay; 1124 dst_h = crtc->mode.hdisplay - (amdgpu_crtc->h_border * 2); 1125 } 1126 } 1127 if (amdgpu_crtc->rmx_type != RMX_OFF) { 1128 fixed20_12 a, b; 1129 a.full = dfixed_const(src_v); 1130 b.full = dfixed_const(dst_v); 1131 amdgpu_crtc->vsc.full = dfixed_div(a, b); 1132 a.full = dfixed_const(src_h); 1133 b.full = dfixed_const(dst_h); 1134 amdgpu_crtc->hsc.full = dfixed_div(a, b); 1135 } else { 1136 amdgpu_crtc->vsc.full = dfixed_const(1); 1137 amdgpu_crtc->hsc.full = dfixed_const(1); 1138 } 1139 return true; 1140 } 1141 1142 /* 1143 * Retrieve current video scanout position of crtc on a given gpu, and 1144 * an optional accurate timestamp of when query happened. 1145 * 1146 * \param dev Device to query. 1147 * \param pipe Crtc to query. 1148 * \param flags Flags from caller (DRM_CALLED_FROM_VBLIRQ or 0). 1149 * For driver internal use only also supports these flags: 1150 * 1151 * USE_REAL_VBLANKSTART to use the real start of vblank instead 1152 * of a fudged earlier start of vblank. 1153 * 1154 * GET_DISTANCE_TO_VBLANKSTART to return distance to the 1155 * fudged earlier start of vblank in *vpos and the distance 1156 * to true start of vblank in *hpos. 1157 * 1158 * \param *vpos Location where vertical scanout position should be stored. 1159 * \param *hpos Location where horizontal scanout position should go. 1160 * \param *stime Target location for timestamp taken immediately before 1161 * scanout position query. Can be NULL to skip timestamp. 1162 * \param *etime Target location for timestamp taken immediately after 1163 * scanout position query. Can be NULL to skip timestamp. 1164 * 1165 * Returns vpos as a positive number while in active scanout area. 1166 * Returns vpos as a negative number inside vblank, counting the number 1167 * of scanlines to go until end of vblank, e.g., -1 means "one scanline 1168 * until start of active scanout / end of vblank." 1169 * 1170 * \return Flags, or'ed together as follows: 1171 * 1172 * DRM_SCANOUTPOS_VALID = Query successful. 1173 * DRM_SCANOUTPOS_INVBL = Inside vblank. 1174 * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of 1175 * this flag means that returned position may be offset by a constant but 1176 * unknown small number of scanlines wrt. real scanout position. 1177 * 1178 */ 1179 int amdgpu_display_get_crtc_scanoutpos(struct drm_device *dev, 1180 unsigned int pipe, unsigned int flags, int *vpos, 1181 int *hpos, ktime_t *stime, ktime_t *etime, 1182 const struct drm_display_mode *mode) 1183 { 1184 u32 vbl = 0, position = 0; 1185 int vbl_start, vbl_end, vtotal, ret = 0; 1186 bool in_vbl = true; 1187 1188 struct amdgpu_device *adev = drm_to_adev(dev); 1189 1190 /* preempt_disable_rt() should go right here in PREEMPT_RT patchset. */ 1191 1192 /* Get optional system timestamp before query. */ 1193 if (stime) 1194 *stime = ktime_get(); 1195 1196 if (amdgpu_display_page_flip_get_scanoutpos(adev, pipe, &vbl, &position) == 0) 1197 ret |= DRM_SCANOUTPOS_VALID; 1198 1199 /* Get optional system timestamp after query. */ 1200 if (etime) 1201 *etime = ktime_get(); 1202 1203 /* preempt_enable_rt() should go right here in PREEMPT_RT patchset. */ 1204 1205 /* Decode into vertical and horizontal scanout position. */ 1206 *vpos = position & 0x1fff; 1207 *hpos = (position >> 16) & 0x1fff; 1208 1209 /* Valid vblank area boundaries from gpu retrieved? */ 1210 if (vbl > 0) { 1211 /* Yes: Decode. */ 1212 ret |= DRM_SCANOUTPOS_ACCURATE; 1213 vbl_start = vbl & 0x1fff; 1214 vbl_end = (vbl >> 16) & 0x1fff; 1215 } 1216 else { 1217 /* No: Fake something reasonable which gives at least ok results. */ 1218 vbl_start = mode->crtc_vdisplay; 1219 vbl_end = 0; 1220 } 1221 1222 /* Called from driver internal vblank counter query code? */ 1223 if (flags & GET_DISTANCE_TO_VBLANKSTART) { 1224 /* Caller wants distance from real vbl_start in *hpos */ 1225 *hpos = *vpos - vbl_start; 1226 } 1227 1228 /* Fudge vblank to start a few scanlines earlier to handle the 1229 * problem that vblank irqs fire a few scanlines before start 1230 * of vblank. Some driver internal callers need the true vblank 1231 * start to be used and signal this via the USE_REAL_VBLANKSTART flag. 1232 * 1233 * The cause of the "early" vblank irq is that the irq is triggered 1234 * by the line buffer logic when the line buffer read position enters 1235 * the vblank, whereas our crtc scanout position naturally lags the 1236 * line buffer read position. 1237 */ 1238 if (!(flags & USE_REAL_VBLANKSTART)) 1239 vbl_start -= adev->mode_info.crtcs[pipe]->lb_vblank_lead_lines; 1240 1241 /* Test scanout position against vblank region. */ 1242 if ((*vpos < vbl_start) && (*vpos >= vbl_end)) 1243 in_vbl = false; 1244 1245 /* In vblank? */ 1246 if (in_vbl) 1247 ret |= DRM_SCANOUTPOS_IN_VBLANK; 1248 1249 /* Called from driver internal vblank counter query code? */ 1250 if (flags & GET_DISTANCE_TO_VBLANKSTART) { 1251 /* Caller wants distance from fudged earlier vbl_start */ 1252 *vpos -= vbl_start; 1253 return ret; 1254 } 1255 1256 /* Check if inside vblank area and apply corrective offsets: 1257 * vpos will then be >=0 in video scanout area, but negative 1258 * within vblank area, counting down the number of lines until 1259 * start of scanout. 1260 */ 1261 1262 /* Inside "upper part" of vblank area? Apply corrective offset if so: */ 1263 if (in_vbl && (*vpos >= vbl_start)) { 1264 vtotal = mode->crtc_vtotal; 1265 1266 /* With variable refresh rate displays the vpos can exceed 1267 * the vtotal value. Clamp to 0 to return -vbl_end instead 1268 * of guessing the remaining number of lines until scanout. 1269 */ 1270 *vpos = (*vpos < vtotal) ? (*vpos - vtotal) : 0; 1271 } 1272 1273 /* Correct for shifted end of vbl at vbl_end. */ 1274 *vpos = *vpos - vbl_end; 1275 1276 return ret; 1277 } 1278 1279 int amdgpu_display_crtc_idx_to_irq_type(struct amdgpu_device *adev, int crtc) 1280 { 1281 if (crtc < 0 || crtc >= adev->mode_info.num_crtc) 1282 return AMDGPU_CRTC_IRQ_NONE; 1283 1284 switch (crtc) { 1285 case 0: 1286 return AMDGPU_CRTC_IRQ_VBLANK1; 1287 case 1: 1288 return AMDGPU_CRTC_IRQ_VBLANK2; 1289 case 2: 1290 return AMDGPU_CRTC_IRQ_VBLANK3; 1291 case 3: 1292 return AMDGPU_CRTC_IRQ_VBLANK4; 1293 case 4: 1294 return AMDGPU_CRTC_IRQ_VBLANK5; 1295 case 5: 1296 return AMDGPU_CRTC_IRQ_VBLANK6; 1297 default: 1298 return AMDGPU_CRTC_IRQ_NONE; 1299 } 1300 } 1301 1302 bool amdgpu_crtc_get_scanout_position(struct drm_crtc *crtc, 1303 bool in_vblank_irq, int *vpos, 1304 int *hpos, ktime_t *stime, ktime_t *etime, 1305 const struct drm_display_mode *mode) 1306 { 1307 struct drm_device *dev = crtc->dev; 1308 unsigned int pipe = crtc->index; 1309 1310 return amdgpu_display_get_crtc_scanoutpos(dev, pipe, 0, vpos, hpos, 1311 stime, etime, mode); 1312 } 1313