tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 632a8c88e339fe86ae6e420a24dfc641d4dd0ab5 commit: 3d879e81f0f9ed5d33b5eda0fe5226c884bb8073 [8949/9357] drm/amdgpu: add init support for GFX11 (v2) config: arm64-allmodconfig (https://download.01.org/0day-ci/archive/20220506/202205060132.uhqyUx1l-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 5e004fb787698440a387750db7f8028e7cb14cfc) 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 # install arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=3d879e81f0f9ed5d33b5eda0fe5226c884bb8073 git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 3d879e81f0f9ed5d33b5eda0fe5226c884bb8073 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/gpu/drm/amd/amdgpu/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c:362:6: warning: variable 'index' is used uninitialized whenever 'if' condition is true [-Wsometimes-uninitialized] if (ring->is_mes_queue) { ^~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c:419:30: note: uninitialized use occurs here amdgpu_device_wb_free(adev, index); ^~~~~ drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c:362:2: note: remove the 'if' if its condition is always false if (ring->is_mes_queue) { ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c:350:16: note: initialize the variable 'index' to silence this warning unsigned index; ^ = 0 >> drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c:1945:6: warning: no previous prototype for function 'gfx_v11_0_rlc_stop' [-Wmissing-prototypes] void gfx_v11_0_rlc_stop(struct amdgpu_device *adev) ^ drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c:1945:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void gfx_v11_0_rlc_stop(struct amdgpu_device *adev) ^ static >> drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c:5873:2: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough] default: ^ drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c:5873:2: note: insert 'break;' to avoid fall-through default: ^ break; 3 warnings generated. vim +362 drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c 344 345 static int gfx_v11_0_ring_test_ib(struct amdgpu_ring *ring, long timeout) 346 { 347 struct amdgpu_device *adev = ring->adev; 348 struct amdgpu_ib ib; 349 struct dma_fence *f = NULL; 350 unsigned index; 351 uint64_t gpu_addr; 352 volatile uint32_t *cpu_ptr; 353 long r; 354 355 /* MES KIQ fw hasn't indirect buffer support for now */ 356 if (adev->enable_mes_kiq && 357 ring->funcs->type == AMDGPU_RING_TYPE_KIQ) 358 return 0; 359 360 memset(&ib, 0, sizeof(ib)); 361 > 362 if (ring->is_mes_queue) { 363 uint32_t padding, offset; 364 365 offset = amdgpu_mes_ctx_get_offs(ring, AMDGPU_MES_CTX_IB_OFFS); 366 padding = amdgpu_mes_ctx_get_offs(ring, 367 AMDGPU_MES_CTX_PADDING_OFFS); 368 369 ib.gpu_addr = amdgpu_mes_ctx_get_offs_gpu_addr(ring, offset); 370 ib.ptr = amdgpu_mes_ctx_get_offs_cpu_addr(ring, offset); 371 372 gpu_addr = amdgpu_mes_ctx_get_offs_gpu_addr(ring, padding); 373 cpu_ptr = amdgpu_mes_ctx_get_offs_cpu_addr(ring, padding); 374 *cpu_ptr = cpu_to_le32(0xCAFEDEAD); 375 } else { 376 r = amdgpu_device_wb_get(adev, &index); 377 if (r) 378 return r; 379 380 gpu_addr = adev->wb.gpu_addr + (index * 4); 381 adev->wb.wb[index] = cpu_to_le32(0xCAFEDEAD); 382 cpu_ptr = &adev->wb.wb[index]; 383 384 r = amdgpu_ib_get(adev, NULL, 16, AMDGPU_IB_POOL_DIRECT, &ib); 385 if (r) { 386 DRM_ERROR("amdgpu: failed to get ib (%ld).\n", r); 387 goto err1; 388 } 389 } 390 391 ib.ptr[0] = PACKET3(PACKET3_WRITE_DATA, 3); 392 ib.ptr[1] = WRITE_DATA_DST_SEL(5) | WR_CONFIRM; 393 ib.ptr[2] = lower_32_bits(gpu_addr); 394 ib.ptr[3] = upper_32_bits(gpu_addr); 395 ib.ptr[4] = 0xDEADBEEF; 396 ib.length_dw = 5; 397 398 r = amdgpu_ib_schedule(ring, 1, &ib, NULL, &f); 399 if (r) 400 goto err2; 401 402 r = dma_fence_wait_timeout(f, false, timeout); 403 if (r == 0) { 404 r = -ETIMEDOUT; 405 goto err2; 406 } else if (r < 0) { 407 goto err2; 408 } 409 410 if (le32_to_cpu(*cpu_ptr) == 0xDEADBEEF) 411 r = 0; 412 else 413 r = -EINVAL; 414 err2: 415 if (!ring->is_mes_queue) 416 amdgpu_ib_free(adev, &ib, NULL); 417 dma_fence_put(f); 418 err1: 419 amdgpu_device_wb_free(adev, index); 420 return r; 421 } 422 -- 0-DAY CI Kernel Test Service https://01.org/lkp
