Hi Maíra, kernel test robot noticed the following build warnings: [auto build test WARNING on 83a0237859bc5a9e0a716e1db8e7fd3cafd63259] url: https://github.com/intel-lab-lkp/linux/commits/Ma-ra-Canal/drm-v3d-Associate-a-V3D-tech-revision-to-all-supported-devices/20250318-090556 base: 83a0237859bc5a9e0a716e1db8e7fd3cafd63259 patch link: https://lore.kernel.org/r/20250317-v3d-gpu-reset-fixes-v6-1-f3ee7717ed17%40igalia.com patch subject: [PATCH v6 1/5] drm/v3d: Associate a V3D tech revision to all supported devices config: x86_64-buildonly-randconfig-002-20250318 (https://download.01.org/0day-ci/archive/20250319/202503190317.nnVNkMGI-lkp@xxxxxxxxx/config) compiler: clang version 20.1.0 (https://github.com/llvm/llvm-project 24a30daaa559829ad079f2ff7f73eb4e18095f88) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250319/202503190317.nnVNkMGI-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202503190317.nnVNkMGI-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/gpu/drm/v3d/v3d_drv.c:292:8: warning: cast to smaller integer type 'enum v3d_gen' from 'const void *' [-Wvoid-pointer-to-enum-cast] 292 | gen = (enum v3d_gen)of_device_get_match_data(dev); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1 warning generated. vim +292 drivers/gpu/drm/v3d/v3d_drv.c 272 273 static int v3d_platform_drm_probe(struct platform_device *pdev) 274 { 275 struct device *dev = &pdev->dev; 276 struct drm_device *drm; 277 struct v3d_dev *v3d; 278 enum v3d_gen gen; 279 int ret; 280 u32 mmu_debug; 281 u32 ident1, ident3; 282 u64 mask; 283 284 v3d = devm_drm_dev_alloc(dev, &v3d_drm_driver, struct v3d_dev, drm); 285 if (IS_ERR(v3d)) 286 return PTR_ERR(v3d); 287 288 drm = &v3d->drm; 289 290 platform_set_drvdata(pdev, drm); 291 > 292 gen = (enum v3d_gen)of_device_get_match_data(dev); 293 v3d->ver = gen; 294 295 ret = map_regs(v3d, &v3d->hub_regs, "hub"); 296 if (ret) 297 return ret; 298 299 ret = map_regs(v3d, &v3d->core_regs[0], "core0"); 300 if (ret) 301 return ret; 302 303 v3d->clk = devm_clk_get_optional(dev, NULL); 304 if (IS_ERR(v3d->clk)) 305 return dev_err_probe(dev, PTR_ERR(v3d->clk), "Failed to get V3D clock\n"); 306 307 ret = clk_prepare_enable(v3d->clk); 308 if (ret) { 309 dev_err(&pdev->dev, "Couldn't enable the V3D clock\n"); 310 return ret; 311 } 312 313 mmu_debug = V3D_READ(V3D_MMU_DEBUG_INFO); 314 mask = DMA_BIT_MASK(30 + V3D_GET_FIELD(mmu_debug, V3D_MMU_PA_WIDTH)); 315 ret = dma_set_mask_and_coherent(dev, mask); 316 if (ret) 317 goto clk_disable; 318 319 v3d->va_width = 30 + V3D_GET_FIELD(mmu_debug, V3D_MMU_VA_WIDTH); 320 321 ident1 = V3D_READ(V3D_HUB_IDENT1); 322 v3d->ver = (V3D_GET_FIELD(ident1, V3D_HUB_IDENT1_TVER) * 10 + 323 V3D_GET_FIELD(ident1, V3D_HUB_IDENT1_REV)); 324 /* Make sure that the V3D tech version retrieved from the HW is equal 325 * to the one advertised by the device tree. 326 */ 327 WARN_ON(v3d->ver != gen); 328 329 v3d->cores = V3D_GET_FIELD(ident1, V3D_HUB_IDENT1_NCORES); 330 WARN_ON(v3d->cores > 1); /* multicore not yet implemented */ 331 332 ident3 = V3D_READ(V3D_HUB_IDENT3); 333 v3d->rev = V3D_GET_FIELD(ident3, V3D_HUB_IDENT3_IPREV); 334 335 v3d_perfmon_init(v3d); 336 337 v3d->reset = devm_reset_control_get_exclusive(dev, NULL); 338 if (IS_ERR(v3d->reset)) { 339 ret = PTR_ERR(v3d->reset); 340 341 if (ret == -EPROBE_DEFER) 342 goto clk_disable; 343 344 v3d->reset = NULL; 345 ret = map_regs(v3d, &v3d->bridge_regs, "bridge"); 346 if (ret) { 347 dev_err(dev, 348 "Failed to get reset control or bridge regs\n"); 349 goto clk_disable; 350 } 351 } 352 353 if (v3d->ver < V3D_GEN_41) { 354 ret = map_regs(v3d, &v3d->gca_regs, "gca"); 355 if (ret) 356 goto clk_disable; 357 } 358 359 v3d->mmu_scratch = dma_alloc_wc(dev, 4096, &v3d->mmu_scratch_paddr, 360 GFP_KERNEL | __GFP_NOWARN | __GFP_ZERO); 361 if (!v3d->mmu_scratch) { 362 dev_err(dev, "Failed to allocate MMU scratch page\n"); 363 ret = -ENOMEM; 364 goto clk_disable; 365 } 366 367 ret = v3d_gem_init(drm); 368 if (ret) 369 goto dma_free; 370 371 ret = v3d_irq_init(v3d); 372 if (ret) 373 goto gem_destroy; 374 375 ret = drm_dev_register(drm, 0); 376 if (ret) 377 goto irq_disable; 378 379 ret = v3d_sysfs_init(dev); 380 if (ret) 381 goto drm_unregister; 382 383 return 0; 384 385 drm_unregister: 386 drm_dev_unregister(drm); 387 irq_disable: 388 v3d_irq_disable(v3d); 389 gem_destroy: 390 v3d_gem_destroy(drm); 391 dma_free: 392 dma_free_wc(dev, 4096, v3d->mmu_scratch, v3d->mmu_scratch_paddr); 393 clk_disable: 394 clk_disable_unprepare(v3d->clk); 395 return ret; 396 } 397 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
