tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 632a8c88e339fe86ae6e420a24dfc641d4dd0ab5 commit: 15d839c16a66434c19f9c8a560b7553f9468e588 [8878/9357] drm/amdgpu/gfx10: add mes support for gfx ib test config: arm64-allmodconfig (https://download.01.org/0day-ci/archive/20220505/202205052242.u5bVKpOl-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=15d839c16a66434c19f9c8a560b7553f9468e588 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 15d839c16a66434c19f9c8a560b7553f9468e588 # 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_v10_0.c:3829:12: error: implicit declaration of function 'amdgpu_mes_ctx_get_offs' [-Werror,-Wimplicit-function-declaration] offset = amdgpu_mes_ctx_get_offs(ring, AMDGPU_MES_CTX_IB_OFFS); ^ >> drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c:3826:6: warning: variable 'index' is used uninitialized whenever 'if' condition is true [-Wsometimes-uninitialized] if (ring->is_mes_queue) { ^~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c:3883:30: note: uninitialized use occurs here amdgpu_device_wb_free(adev, index); ^~~~~ drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c:3826:2: note: remove the 'if' if its condition is always false if (ring->is_mes_queue) { ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c:3819:16: note: initialize the variable 'index' to silence this warning unsigned index; ^ = 0 1 warning and 1 error generated. vim +3826 drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c 3813 3814 static int gfx_v10_0_ring_test_ib(struct amdgpu_ring *ring, long timeout) 3815 { 3816 struct amdgpu_device *adev = ring->adev; 3817 struct amdgpu_ib ib; 3818 struct dma_fence *f = NULL; 3819 unsigned index; 3820 uint64_t gpu_addr; 3821 volatile uint32_t *cpu_ptr; 3822 long r; 3823 3824 memset(&ib, 0, sizeof(ib)); 3825 > 3826 if (ring->is_mes_queue) { 3827 uint32_t padding, offset; 3828 3829 offset = amdgpu_mes_ctx_get_offs(ring, AMDGPU_MES_CTX_IB_OFFS); 3830 padding = amdgpu_mes_ctx_get_offs(ring, 3831 AMDGPU_MES_CTX_PADDING_OFFS); 3832 3833 ib.gpu_addr = amdgpu_mes_ctx_get_offs_gpu_addr(ring, offset); 3834 ib.ptr = amdgpu_mes_ctx_get_offs_cpu_addr(ring, offset); 3835 3836 gpu_addr = amdgpu_mes_ctx_get_offs_gpu_addr(ring, padding); 3837 cpu_ptr = amdgpu_mes_ctx_get_offs_cpu_addr(ring, padding); 3838 *cpu_ptr = cpu_to_le32(0xCAFEDEAD); 3839 } else { 3840 r = amdgpu_device_wb_get(adev, &index); 3841 if (r) 3842 return r; 3843 3844 gpu_addr = adev->wb.gpu_addr + (index * 4); 3845 adev->wb.wb[index] = cpu_to_le32(0xCAFEDEAD); 3846 cpu_ptr = &adev->wb.wb[index]; 3847 3848 r = amdgpu_ib_get(adev, NULL, 20, AMDGPU_IB_POOL_DIRECT, &ib); 3849 if (r) { 3850 DRM_ERROR("amdgpu: failed to get ib (%ld).\n", r); 3851 goto err1; 3852 } 3853 } 3854 3855 ib.ptr[0] = PACKET3(PACKET3_WRITE_DATA, 3); 3856 ib.ptr[1] = WRITE_DATA_DST_SEL(5) | WR_CONFIRM; 3857 ib.ptr[2] = lower_32_bits(gpu_addr); 3858 ib.ptr[3] = upper_32_bits(gpu_addr); 3859 ib.ptr[4] = 0xDEADBEEF; 3860 ib.length_dw = 5; 3861 3862 r = amdgpu_ib_schedule(ring, 1, &ib, NULL, &f); 3863 if (r) 3864 goto err2; 3865 3866 r = dma_fence_wait_timeout(f, false, timeout); 3867 if (r == 0) { 3868 r = -ETIMEDOUT; 3869 goto err2; 3870 } else if (r < 0) { 3871 goto err2; 3872 } 3873 3874 if (le32_to_cpu(*cpu_ptr) == 0xDEADBEEF) 3875 r = 0; 3876 else 3877 r = -EINVAL; 3878 err2: 3879 if (!ring->is_mes_queue) 3880 amdgpu_ib_free(adev, &ib, NULL); 3881 dma_fence_put(f); 3882 err1: 3883 amdgpu_device_wb_free(adev, index); 3884 return r; 3885 } 3886 -- 0-DAY CI Kernel Test Service https://01.org/lkp
