1 /* $NetBSD: nouveau_display.c,v 1.5 2021/12/18 23:45:32 riastradh Exp $ */ 2 3 /* 4 * Copyright (C) 2008 Maarten Maathuis. 5 * All Rights Reserved. 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining 8 * a copy of this software and associated documentation files (the 9 * "Software"), to deal in the Software without restriction, including 10 * without limitation the rights to use, copy, modify, merge, publish, 11 * distribute, sublicense, and/or sell copies of the Software, and to 12 * permit persons to whom the Software is furnished to do so, subject to 13 * the following conditions: 14 * 15 * The above copyright notice and this permission notice (including the 16 * next paragraph) shall be included in all copies or substantial 17 * portions of the Software. 18 * 19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 20 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 22 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE 23 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 24 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 25 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 26 * 27 */ 28 29 #include <sys/cdefs.h> 30 __KERNEL_RCSID(0, "$NetBSD: nouveau_display.c,v 1.5 2021/12/18 23:45:32 riastradh Exp $"); 31 32 #include <acpi/video.h> 33 34 #include <drm/drm_atomic.h> 35 #include <drm/drm_atomic_helper.h> 36 #include <drm/drm_crtc_helper.h> 37 #include <drm/drm_fb_helper.h> 38 #include <drm/drm_fourcc.h> 39 #include <drm/drm_probe_helper.h> 40 #include <drm/drm_vblank.h> 41 42 #include "nouveau_fbcon.h" 43 #include "nouveau_crtc.h" 44 #include "nouveau_gem.h" 45 #include "nouveau_connector.h" 46 #include "nv50_display.h" 47 48 #include <nvif/class.h> 49 #include <nvif/cl0046.h> 50 #include <nvif/event.h> 51 52 static int 53 nouveau_display_vblank_handler(struct nvif_notify *notify) 54 { 55 struct nouveau_crtc *nv_crtc = 56 container_of(notify, typeof(*nv_crtc), vblank); 57 drm_crtc_handle_vblank(&nv_crtc->base); 58 return NVIF_NOTIFY_KEEP; 59 } 60 61 int 62 nouveau_display_vblank_enable(struct drm_device *dev, unsigned int pipe) 63 { 64 struct drm_crtc *crtc; 65 struct nouveau_crtc *nv_crtc; 66 67 crtc = drm_crtc_from_index(dev, pipe); 68 if (!crtc) 69 return -EINVAL; 70 71 nv_crtc = nouveau_crtc(crtc); 72 nvif_notify_get(&nv_crtc->vblank); 73 74 return 0; 75 } 76 77 void 78 nouveau_display_vblank_disable(struct drm_device *dev, unsigned int pipe) 79 { 80 struct drm_crtc *crtc; 81 struct nouveau_crtc *nv_crtc; 82 83 crtc = drm_crtc_from_index(dev, pipe); 84 if (!crtc) 85 return; 86 87 nv_crtc = nouveau_crtc(crtc); 88 nvif_notify_put(&nv_crtc->vblank); 89 } 90 91 static inline int 92 calc(int blanks, int blanke, int total, int line) 93 { 94 if (blanke >= blanks) { 95 if (line >= blanks) 96 line -= total; 97 } else { 98 if (line >= blanks) 99 line -= total; 100 line -= blanke + 1; 101 } 102 return line; 103 } 104 105 static bool 106 nouveau_display_scanoutpos_head(struct drm_crtc *crtc, int *vpos, int *hpos, 107 ktime_t *stime, ktime_t *etime) 108 { 109 struct { 110 struct nv04_disp_mthd_v0 base; 111 struct nv04_disp_scanoutpos_v0 scan; 112 } args = { 113 .base.method = NV04_DISP_SCANOUTPOS, 114 .base.head = nouveau_crtc(crtc)->index, 115 }; 116 struct nouveau_display *disp = nouveau_display(crtc->dev); 117 struct drm_vblank_crtc *vblank = &crtc->dev->vblank[drm_crtc_index(crtc)]; 118 int retry = 20; 119 bool ret = false; 120 121 do { 122 ret = nvif_mthd(&disp->disp.object, 0, &args, sizeof(args)); 123 if (ret != 0) 124 return false; 125 126 if (args.scan.vline) { 127 ret = true; 128 break; 129 } 130 131 if (retry) ndelay(vblank->linedur_ns); 132 } while (retry--); 133 134 *hpos = args.scan.hline; 135 *vpos = calc(args.scan.vblanks, args.scan.vblanke, 136 args.scan.vtotal, args.scan.vline); 137 if (stime) *stime = ns_to_ktime(args.scan.time[0]); 138 if (etime) *etime = ns_to_ktime(args.scan.time[1]); 139 140 return ret; 141 } 142 143 bool 144 nouveau_display_scanoutpos(struct drm_device *dev, unsigned int pipe, 145 bool in_vblank_irq, int *vpos, int *hpos, 146 ktime_t *stime, ktime_t *etime, 147 const struct drm_display_mode *mode) 148 { 149 struct drm_crtc *crtc; 150 151 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 152 if (nouveau_crtc(crtc)->index == pipe) { 153 return nouveau_display_scanoutpos_head(crtc, vpos, hpos, 154 stime, etime); 155 } 156 } 157 158 return false; 159 } 160 161 static void 162 nouveau_display_vblank_fini(struct drm_device *dev) 163 { 164 struct drm_crtc *crtc; 165 166 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 167 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); 168 nvif_notify_fini(&nv_crtc->vblank); 169 } 170 } 171 172 static int 173 nouveau_display_vblank_init(struct drm_device *dev) 174 { 175 struct nouveau_display *disp = nouveau_display(dev); 176 struct drm_crtc *crtc; 177 int ret; 178 179 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 180 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); 181 ret = nvif_notify_init(&disp->disp.object, 182 nouveau_display_vblank_handler, false, 183 NV04_DISP_NTFY_VBLANK, 184 &(struct nvif_notify_head_req_v0) { 185 .head = nv_crtc->index, 186 }, 187 sizeof(struct nvif_notify_head_req_v0), 188 sizeof(struct nvif_notify_head_rep_v0), 189 &nv_crtc->vblank); 190 if (ret) { 191 nouveau_display_vblank_fini(dev); 192 return ret; 193 } 194 } 195 196 ret = drm_vblank_init(dev, dev->mode_config.num_crtc); 197 if (ret) { 198 nouveau_display_vblank_fini(dev); 199 return ret; 200 } 201 202 return 0; 203 } 204 205 static void 206 nouveau_user_framebuffer_destroy(struct drm_framebuffer *drm_fb) 207 { 208 struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb); 209 210 if (fb->nvbo) 211 drm_gem_object_put_unlocked(&fb->nvbo->bo.base); 212 213 drm_framebuffer_cleanup(drm_fb); 214 kfree(fb); 215 } 216 217 static int 218 nouveau_user_framebuffer_create_handle(struct drm_framebuffer *drm_fb, 219 struct drm_file *file_priv, 220 unsigned int *handle) 221 { 222 struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb); 223 224 return drm_gem_handle_create(file_priv, &fb->nvbo->bo.base, handle); 225 } 226 227 static const struct drm_framebuffer_funcs nouveau_framebuffer_funcs = { 228 .destroy = nouveau_user_framebuffer_destroy, 229 .create_handle = nouveau_user_framebuffer_create_handle, 230 }; 231 232 int 233 nouveau_framebuffer_new(struct drm_device *dev, 234 const struct drm_mode_fb_cmd2 *mode_cmd, 235 struct nouveau_bo *nvbo, 236 struct nouveau_framebuffer **pfb) 237 { 238 struct nouveau_drm *drm = nouveau_drm(dev); 239 struct nouveau_framebuffer *fb; 240 int ret; 241 242 /* YUV overlays have special requirements pre-NV50 */ 243 if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA && 244 245 (mode_cmd->pixel_format == DRM_FORMAT_YUYV || 246 mode_cmd->pixel_format == DRM_FORMAT_UYVY || 247 mode_cmd->pixel_format == DRM_FORMAT_NV12 || 248 mode_cmd->pixel_format == DRM_FORMAT_NV21) && 249 (mode_cmd->pitches[0] & 0x3f || /* align 64 */ 250 mode_cmd->pitches[0] >= 0x10000 || /* at most 64k pitch */ 251 (mode_cmd->pitches[1] && /* pitches for planes must match */ 252 mode_cmd->pitches[0] != mode_cmd->pitches[1]))) { 253 struct drm_format_name_buf format_name; 254 DRM_DEBUG_KMS("Unsuitable framebuffer: format: %s; pitches: 0x%x\n 0x%x\n", 255 drm_get_format_name(mode_cmd->pixel_format, 256 &format_name), 257 mode_cmd->pitches[0], 258 mode_cmd->pitches[1]); 259 return -EINVAL; 260 } 261 262 if (!(fb = *pfb = kzalloc(sizeof(*fb), GFP_KERNEL))) 263 return -ENOMEM; 264 265 drm_helper_mode_fill_fb_struct(dev, &fb->base, mode_cmd); 266 fb->nvbo = nvbo; 267 268 ret = drm_framebuffer_init(dev, &fb->base, &nouveau_framebuffer_funcs); 269 if (ret) 270 kfree(fb); 271 return ret; 272 } 273 274 struct drm_framebuffer * 275 nouveau_user_framebuffer_create(struct drm_device *dev, 276 struct drm_file *file_priv, 277 const struct drm_mode_fb_cmd2 *mode_cmd) 278 { 279 struct nouveau_framebuffer *fb; 280 struct nouveau_bo *nvbo; 281 struct drm_gem_object *gem; 282 int ret; 283 284 gem = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]); 285 if (!gem) 286 return ERR_PTR(-ENOENT); 287 nvbo = nouveau_gem_object(gem); 288 289 ret = nouveau_framebuffer_new(dev, mode_cmd, nvbo, &fb); 290 if (ret == 0) 291 return &fb->base; 292 293 drm_gem_object_put_unlocked(gem); 294 return ERR_PTR(ret); 295 } 296 297 static const struct drm_mode_config_funcs nouveau_mode_config_funcs = { 298 .fb_create = nouveau_user_framebuffer_create, 299 .output_poll_changed = nouveau_fbcon_output_poll_changed, 300 }; 301 302 303 struct nouveau_drm_prop_enum_list { 304 u8 gen_mask; 305 int type; 306 const char *name; 307 }; 308 309 static struct nouveau_drm_prop_enum_list underscan[] = { 310 { 6, UNDERSCAN_AUTO, "auto" }, 311 { 6, UNDERSCAN_OFF, "off" }, 312 { 6, UNDERSCAN_ON, "on" }, 313 {} 314 }; 315 316 static struct nouveau_drm_prop_enum_list dither_mode[] = { 317 { 7, DITHERING_MODE_AUTO, "auto" }, 318 { 7, DITHERING_MODE_OFF, "off" }, 319 { 1, DITHERING_MODE_ON, "on" }, 320 { 6, DITHERING_MODE_STATIC2X2, "static 2x2" }, 321 { 6, DITHERING_MODE_DYNAMIC2X2, "dynamic 2x2" }, 322 { 4, DITHERING_MODE_TEMPORAL, "temporal" }, 323 {} 324 }; 325 326 static struct nouveau_drm_prop_enum_list dither_depth[] = { 327 { 6, DITHERING_DEPTH_AUTO, "auto" }, 328 { 6, DITHERING_DEPTH_6BPC, "6 bpc" }, 329 { 6, DITHERING_DEPTH_8BPC, "8 bpc" }, 330 {} 331 }; 332 333 #define PROP_ENUM(p,gen,n,list) do { \ 334 struct nouveau_drm_prop_enum_list *l = (list); \ 335 int c = 0; \ 336 while (l->gen_mask) { \ 337 if (l->gen_mask & (1 << (gen))) \ 338 c++; \ 339 l++; \ 340 } \ 341 if (c) { \ 342 p = drm_property_create(dev, DRM_MODE_PROP_ENUM, n, c); \ 343 l = (list); \ 344 while (p && l->gen_mask) { \ 345 if (l->gen_mask & (1 << (gen))) { \ 346 drm_property_add_enum(p, l->type, l->name); \ 347 } \ 348 l++; \ 349 } \ 350 } \ 351 } while(0) 352 353 static void 354 nouveau_display_hpd_work(struct work_struct *work) 355 { 356 struct nouveau_drm *drm = container_of(work, typeof(*drm), hpd_work); 357 358 pm_runtime_get_sync(drm->dev->dev); 359 360 drm_helper_hpd_irq_event(drm->dev); 361 362 pm_runtime_mark_last_busy(drm->dev->dev); 363 pm_runtime_put_sync(drm->dev->dev); 364 } 365 366 #ifdef CONFIG_ACPI 367 368 static int 369 nouveau_display_acpi_ntfy(struct notifier_block *nb, unsigned long val, 370 void *data) 371 { 372 struct nouveau_drm *drm = container_of(nb, typeof(*drm), acpi_nb); 373 struct acpi_bus_event *info = data; 374 int ret; 375 376 if (!strcmp(info->device_class, ACPI_VIDEO_CLASS)) { 377 if (info->type == ACPI_VIDEO_NOTIFY_PROBE) { 378 ret = pm_runtime_get(drm->dev->dev); 379 if (ret == 1 || ret == -EACCES) { 380 /* If the GPU is already awake, or in a state 381 * where we can't wake it up, it can handle 382 * it's own hotplug events. 383 */ 384 pm_runtime_put_autosuspend(drm->dev->dev); 385 } else if (ret == 0) { 386 /* This may be the only indication we receive 387 * of a connector hotplug on a runtime 388 * suspended GPU, schedule hpd_work to check. 389 */ 390 NV_DEBUG(drm, "ACPI requested connector reprobe\n"); 391 schedule_work(&drm->hpd_work); 392 pm_runtime_put_noidle(drm->dev->dev); 393 } else { 394 NV_WARN(drm, "Dropped ACPI reprobe event due to RPM error: %d\n", 395 ret); 396 } 397 398 /* acpi-video should not generate keypresses for this */ 399 return NOTIFY_BAD; 400 } 401 } 402 403 return NOTIFY_DONE; 404 } 405 #endif 406 407 int 408 nouveau_display_init(struct drm_device *dev, bool resume, bool runtime) 409 { 410 struct nouveau_display *disp = nouveau_display(dev); 411 struct drm_connector *connector; 412 struct drm_connector_list_iter conn_iter; 413 int ret; 414 415 /* 416 * Enable hotplug interrupts (done as early as possible, since we need 417 * them for MST) 418 */ 419 drm_connector_list_iter_begin(dev, &conn_iter); 420 nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) { 421 struct nouveau_connector *conn = nouveau_connector(connector); 422 nvif_notify_get(&conn->hpd); 423 } 424 drm_connector_list_iter_end(&conn_iter); 425 426 ret = disp->init(dev, resume, runtime); 427 if (ret) 428 return ret; 429 430 /* enable connector detection and polling for connectors without HPD 431 * support 432 */ 433 drm_kms_helper_poll_enable(dev); 434 435 return ret; 436 } 437 438 void 439 nouveau_display_fini(struct drm_device *dev, bool suspend, bool runtime) 440 { 441 struct nouveau_display *disp = nouveau_display(dev); 442 struct nouveau_drm *drm = nouveau_drm(dev); 443 struct drm_connector *connector; 444 struct drm_connector_list_iter conn_iter; 445 446 if (!suspend) { 447 if (drm_drv_uses_atomic_modeset(dev)) 448 drm_atomic_helper_shutdown(dev); 449 else 450 drm_helper_force_disable_all(dev); 451 } 452 453 /* disable hotplug interrupts */ 454 drm_connector_list_iter_begin(dev, &conn_iter); 455 nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) { 456 struct nouveau_connector *conn = nouveau_connector(connector); 457 nvif_notify_put(&conn->hpd); 458 } 459 drm_connector_list_iter_end(&conn_iter); 460 461 if (!runtime) 462 cancel_work_sync(&drm->hpd_work); 463 464 drm_kms_helper_poll_disable(dev); 465 disp->fini(dev, suspend); 466 } 467 468 static void 469 nouveau_display_create_properties(struct drm_device *dev) 470 { 471 struct nouveau_display *disp = nouveau_display(dev); 472 int gen; 473 474 if (disp->disp.object.oclass < NV50_DISP) 475 gen = 0; 476 else 477 if (disp->disp.object.oclass < GF110_DISP) 478 gen = 1; 479 else 480 gen = 2; 481 482 PROP_ENUM(disp->dithering_mode, gen, "dithering mode", dither_mode); 483 PROP_ENUM(disp->dithering_depth, gen, "dithering depth", dither_depth); 484 PROP_ENUM(disp->underscan_property, gen, "underscan", underscan); 485 486 disp->underscan_hborder_property = 487 drm_property_create_range(dev, 0, "underscan hborder", 0, 128); 488 489 disp->underscan_vborder_property = 490 drm_property_create_range(dev, 0, "underscan vborder", 0, 128); 491 492 if (gen < 1) 493 return; 494 495 /* -90..+90 */ 496 disp->vibrant_hue_property = 497 drm_property_create_range(dev, 0, "vibrant hue", 0, 180); 498 499 /* -100..+100 */ 500 disp->color_vibrance_property = 501 drm_property_create_range(dev, 0, "color vibrance", 0, 200); 502 } 503 504 int 505 nouveau_display_create(struct drm_device *dev) 506 { 507 struct nouveau_drm *drm = nouveau_drm(dev); 508 struct nvkm_device *device = nvxx_device(&drm->client.device); 509 struct nouveau_display *disp; 510 int ret; 511 512 disp = drm->display = kzalloc(sizeof(*disp), GFP_KERNEL); 513 if (!disp) 514 return -ENOMEM; 515 516 drm_mode_config_init(dev); 517 drm_mode_create_scaling_mode_property(dev); 518 drm_mode_create_dvi_i_properties(dev); 519 520 dev->mode_config.funcs = &nouveau_mode_config_funcs; 521 dev->mode_config.fb_base = device->func->resource_addr(device, 1); 522 523 dev->mode_config.min_width = 0; 524 dev->mode_config.min_height = 0; 525 if (drm->client.device.info.family < NV_DEVICE_INFO_V0_CELSIUS) { 526 dev->mode_config.max_width = 2048; 527 dev->mode_config.max_height = 2048; 528 } else 529 if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) { 530 dev->mode_config.max_width = 4096; 531 dev->mode_config.max_height = 4096; 532 } else 533 if (drm->client.device.info.family < NV_DEVICE_INFO_V0_FERMI) { 534 dev->mode_config.max_width = 8192; 535 dev->mode_config.max_height = 8192; 536 } else { 537 dev->mode_config.max_width = 16384; 538 dev->mode_config.max_height = 16384; 539 } 540 541 dev->mode_config.preferred_depth = 24; 542 dev->mode_config.prefer_shadow = 1; 543 544 if (drm->client.device.info.chipset < 0x11) 545 dev->mode_config.async_page_flip = false; 546 else 547 dev->mode_config.async_page_flip = true; 548 549 drm_kms_helper_poll_init(dev); 550 drm_kms_helper_poll_disable(dev); 551 552 if (nouveau_modeset != 2 && drm->vbios.dcb.entries) { 553 ret = nvif_disp_ctor(&drm->client.device, 0, &disp->disp); 554 if (ret == 0) { 555 nouveau_display_create_properties(dev); 556 if (disp->disp.object.oclass < NV50_DISP) 557 ret = nv04_display_create(dev); 558 else 559 ret = nv50_display_create(dev); 560 } 561 } else { 562 ret = 0; 563 } 564 565 if (ret) 566 goto disp_create_err; 567 568 drm_mode_config_reset(dev); 569 570 if (dev->mode_config.num_crtc) { 571 ret = nouveau_display_vblank_init(dev); 572 if (ret) 573 goto vblank_err; 574 } 575 576 INIT_WORK(&drm->hpd_work, nouveau_display_hpd_work); 577 #ifdef CONFIG_ACPI 578 drm->acpi_nb.notifier_call = nouveau_display_acpi_ntfy; 579 register_acpi_notifier(&drm->acpi_nb); 580 #endif 581 582 return 0; 583 584 vblank_err: 585 disp->dtor(dev); 586 disp_create_err: 587 drm_kms_helper_poll_fini(dev); 588 drm_mode_config_cleanup(dev); 589 return ret; 590 } 591 592 void 593 nouveau_display_destroy(struct drm_device *dev) 594 { 595 struct nouveau_display *disp = nouveau_display(dev); 596 597 #ifdef CONFIG_ACPI 598 unregister_acpi_notifier(&nouveau_drm(dev)->acpi_nb); 599 #endif 600 nouveau_display_vblank_fini(dev); 601 602 drm_kms_helper_poll_fini(dev); 603 drm_mode_config_cleanup(dev); 604 605 if (disp->dtor) 606 disp->dtor(dev); 607 608 nvif_disp_dtor(&disp->disp); 609 610 nouveau_drm(dev)->display = NULL; 611 kfree(disp); 612 } 613 614 int 615 nouveau_display_suspend(struct drm_device *dev, bool runtime) 616 { 617 struct nouveau_display *disp = nouveau_display(dev); 618 619 if (drm_drv_uses_atomic_modeset(dev)) { 620 if (!runtime) { 621 disp->suspend = drm_atomic_helper_suspend(dev); 622 if (IS_ERR(disp->suspend)) { 623 int ret = PTR_ERR(disp->suspend); 624 disp->suspend = NULL; 625 return ret; 626 } 627 } 628 } 629 630 nouveau_display_fini(dev, true, runtime); 631 return 0; 632 } 633 634 void 635 nouveau_display_resume(struct drm_device *dev, bool runtime) 636 { 637 struct nouveau_display *disp = nouveau_display(dev); 638 639 nouveau_display_init(dev, true, runtime); 640 641 if (drm_drv_uses_atomic_modeset(dev)) { 642 if (disp->suspend) { 643 drm_atomic_helper_resume(dev, disp->suspend); 644 disp->suspend = NULL; 645 } 646 return; 647 } 648 } 649 650 int 651 nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev, 652 struct drm_mode_create_dumb *args) 653 { 654 struct nouveau_cli *cli = nouveau_cli(file_priv); 655 struct nouveau_bo *bo; 656 uint32_t domain; 657 int ret; 658 659 args->pitch = roundup(args->width * (args->bpp / 8), 256); 660 args->size = args->pitch * args->height; 661 args->size = roundup(args->size, PAGE_SIZE); 662 663 /* Use VRAM if there is any ; otherwise fallback to system memory */ 664 if (nouveau_drm(dev)->client.device.info.ram_size != 0) 665 domain = NOUVEAU_GEM_DOMAIN_VRAM; 666 else 667 domain = NOUVEAU_GEM_DOMAIN_GART; 668 669 ret = nouveau_gem_new(cli, args->size, 0, domain, 0, 0, &bo); 670 if (ret) 671 return ret; 672 673 ret = drm_gem_handle_create(file_priv, &bo->bo.base, &args->handle); 674 drm_gem_object_put_unlocked(&bo->bo.base); 675 return ret; 676 } 677 678 int 679 nouveau_display_dumb_map_offset(struct drm_file *file_priv, 680 struct drm_device *dev, 681 uint32_t handle, uint64_t *poffset) 682 { 683 struct drm_gem_object *gem; 684 685 gem = drm_gem_object_lookup(file_priv, handle); 686 if (gem) { 687 struct nouveau_bo *bo = nouveau_gem_object(gem); 688 *poffset = drm_vma_node_offset_addr(&bo->bo.base.vma_node); 689 drm_gem_object_put_unlocked(gem); 690 return 0; 691 } 692 693 return -ENOENT; 694 } 695