Hi Thomas, I love your patch! Yet something to improve: [auto build test ERROR on drm-misc/drm-misc-next] [also build test ERROR on linus/master v6.3-rc4] [cannot apply to next-20230330] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Thomas-Zimmermann/drm-msm-Clear-aperture-ownership-outside-of-fbdev-code/20230330-154729 base: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next patch link: https://lore.kernel.org/r/20230330074150.7637-7-tzimmermann%40suse.de patch subject: [PATCH 6/6] drm/msm: Implement fbdev emulation as in-kernel client config: csky-randconfig-r011-20230329 (https://download.01.org/0day-ci/archive/20230330/202303301849.HjMnKXNi-lkp@xxxxxxxxx/config) compiler: csky-linux-gcc (GCC) 12.1.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/intel-lab-lkp/linux/commit/ec39cb11cf72fb01ada6fe51c7c572a31dcc805d git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Thomas-Zimmermann/drm-msm-Clear-aperture-ownership-outside-of-fbdev-code/20230330-154729 git checkout ec39cb11cf72fb01ada6fe51c7c572a31dcc805d # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=csky olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=csky SHELL=/bin/bash drivers/gpu/drm/msm/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202303301849.HjMnKXNi-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): drivers/gpu/drm/msm/msm_drv.c: In function 'msm_drm_init': >> drivers/gpu/drm/msm/msm_drv.c:538:20: error: 'fbdev' undeclared (first use in this function) 538 | if (kms && fbdev) | ^~~~~ drivers/gpu/drm/msm/msm_drv.c:538:20: note: each undeclared identifier is reported only once for each function it appears in vim +/fbdev +538 drivers/gpu/drm/msm/msm_drv.c 398 399 static int msm_drm_init(struct device *dev, const struct drm_driver *drv) 400 { 401 struct msm_drm_private *priv = dev_get_drvdata(dev); 402 struct drm_device *ddev; 403 struct msm_kms *kms; 404 int ret, i; 405 406 if (drm_firmware_drivers_only()) 407 return -ENODEV; 408 409 /* the fw fb could be anywhere in memory */ 410 ret = drm_aperture_remove_framebuffers(false, drv); 411 if (ret) 412 return ret; 413 414 ddev = drm_dev_alloc(drv, dev); 415 if (IS_ERR(ddev)) { 416 DRM_DEV_ERROR(dev, "failed to allocate drm_device\n"); 417 return PTR_ERR(ddev); 418 } 419 ddev->dev_private = priv; 420 priv->dev = ddev; 421 422 priv->wq = alloc_ordered_workqueue("msm", 0); 423 if (!priv->wq) 424 return -ENOMEM; 425 426 INIT_LIST_HEAD(&priv->objects); 427 mutex_init(&priv->obj_lock); 428 429 /* 430 * Initialize the LRUs: 431 */ 432 mutex_init(&priv->lru.lock); 433 drm_gem_lru_init(&priv->lru.unbacked, &priv->lru.lock); 434 drm_gem_lru_init(&priv->lru.pinned, &priv->lru.lock); 435 drm_gem_lru_init(&priv->lru.willneed, &priv->lru.lock); 436 drm_gem_lru_init(&priv->lru.dontneed, &priv->lru.lock); 437 438 /* Teach lockdep about lock ordering wrt. shrinker: */ 439 fs_reclaim_acquire(GFP_KERNEL); 440 might_lock(&priv->lru.lock); 441 fs_reclaim_release(GFP_KERNEL); 442 443 drm_mode_config_init(ddev); 444 445 ret = msm_init_vram(ddev); 446 if (ret) 447 goto err_drm_dev_put; 448 449 /* Bind all our sub-components: */ 450 ret = component_bind_all(dev, ddev); 451 if (ret) 452 goto err_drm_dev_put; 453 454 dma_set_max_seg_size(dev, UINT_MAX); 455 456 msm_gem_shrinker_init(ddev); 457 458 if (priv->kms_init) { 459 ret = priv->kms_init(ddev); 460 if (ret) { 461 DRM_DEV_ERROR(dev, "failed to load kms\n"); 462 priv->kms = NULL; 463 goto err_msm_uninit; 464 } 465 kms = priv->kms; 466 } else { 467 /* valid only for the dummy headless case, where of_node=NULL */ 468 WARN_ON(dev->of_node); 469 kms = NULL; 470 } 471 472 /* Enable normalization of plane zpos */ 473 ddev->mode_config.normalize_zpos = true; 474 475 if (kms) { 476 kms->dev = ddev; 477 ret = kms->funcs->hw_init(kms); 478 if (ret) { 479 DRM_DEV_ERROR(dev, "kms hw init failed: %d\n", ret); 480 goto err_msm_uninit; 481 } 482 } 483 484 drm_helper_move_panel_connectors_to_head(ddev); 485 486 ddev->mode_config.funcs = &mode_config_funcs; 487 ddev->mode_config.helper_private = &mode_config_helper_funcs; 488 489 for (i = 0; i < priv->num_crtcs; i++) { 490 /* initialize event thread */ 491 priv->event_thread[i].crtc_id = priv->crtcs[i]->base.id; 492 priv->event_thread[i].dev = ddev; 493 priv->event_thread[i].worker = kthread_create_worker(0, 494 "crtc_event:%d", priv->event_thread[i].crtc_id); 495 if (IS_ERR(priv->event_thread[i].worker)) { 496 ret = PTR_ERR(priv->event_thread[i].worker); 497 DRM_DEV_ERROR(dev, "failed to create crtc_event kthread\n"); 498 priv->event_thread[i].worker = NULL; 499 goto err_msm_uninit; 500 } 501 502 sched_set_fifo(priv->event_thread[i].worker->task); 503 } 504 505 ret = drm_vblank_init(ddev, priv->num_crtcs); 506 if (ret < 0) { 507 DRM_DEV_ERROR(dev, "failed to initialize vblank\n"); 508 goto err_msm_uninit; 509 } 510 511 if (kms) { 512 pm_runtime_get_sync(dev); 513 ret = msm_irq_install(ddev, kms->irq); 514 pm_runtime_put_sync(dev); 515 if (ret < 0) { 516 DRM_DEV_ERROR(dev, "failed to install IRQ handler\n"); 517 goto err_msm_uninit; 518 } 519 } 520 521 ret = drm_dev_register(ddev, 0); 522 if (ret) 523 goto err_msm_uninit; 524 525 if (kms) { 526 ret = msm_disp_snapshot_init(ddev); 527 if (ret) 528 DRM_DEV_ERROR(dev, "msm_disp_snapshot_init failed ret = %d\n", ret); 529 } 530 drm_mode_config_reset(ddev); 531 532 ret = msm_debugfs_late_init(ddev); 533 if (ret) 534 goto err_msm_uninit; 535 536 drm_kms_helper_poll_init(ddev); 537 > 538 if (kms && fbdev) 539 msm_fbdev_setup(ddev); 540 541 return 0; 542 543 err_msm_uninit: 544 msm_drm_uninit(dev); 545 err_drm_dev_put: 546 drm_dev_put(ddev); 547 return ret; 548 } 549 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
