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Sat, 10 Jun 2023 00:02:57 +0000 Date: Sat, 10 Jun 2023 08:02:40 +0800 From: kernel test robot To: Leo Liu Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, Alex Deucher , James Zhu Subject: drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c:1303:12: warning: stack frame size (3536) exceeds limit (2048) in 'vcn_v4_0_stop' Message-ID: <202306100755.2Kmzf3xm-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 64569520920a3ca5d456ddd9f4f95fc6ea9b8b45 commit: 8da1170a16e4d4b49fa07d1f75ad480847ff7eca drm/amdgpu: add VCN4 ip block support date: 1 year, 1 month ago config: riscv-randconfig-r012-20230608 (https://download.01.org/0day-ci/archive/20230610/202306100755.2Kmzf3xm-lkp@intel.com/config) compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project.git f28c006a5895fc0e329fe15fead81e37457cb1d1) reproduce (this is a W=1 build): mkdir -p ~/bin wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install riscv cross compiling tool for clang build # apt-get install binutils-riscv64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8da1170a16e4d4b49fa07d1f75ad480847ff7eca git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 8da1170a16e4d4b49fa07d1f75ad480847ff7eca # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang ~/bin/make.cross W=1 O=build_dir ARCH=riscv olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang ~/bin/make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash drivers/gpu/drm/ lib/ 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 | Closes: https://lore.kernel.org/oe-kbuild-all/202306100755.2Kmzf3xm-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c:1303:12: warning: stack frame size (3536) exceeds limit (2048) in 'vcn_v4_0_stop' [-Wframe-larger-than] static int vcn_v4_0_stop(struct amdgpu_device *adev) ^ >> drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c:1057:12: warning: stack frame size (8896) exceeds limit (2048) in 'vcn_v4_0_start' [-Wframe-larger-than] static int vcn_v4_0_start(struct amdgpu_device *adev) ^ drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c:887:12: warning: stack frame size (3056) exceeds limit (2048) in 'vcn_v4_0_start_dpg_mode' [-Wframe-larger-than] static int vcn_v4_0_start_dpg_mode(struct amdgpu_device *adev, int inst_idx, bool indirect) ^ 3 warnings generated. vim +/vcn_v4_0_stop +1303 drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c 1295 1296 /** 1297 * vcn_v4_0_stop - VCN stop 1298 * 1299 * @adev: amdgpu_device pointer 1300 * 1301 * Stop VCN block 1302 */ > 1303 static int vcn_v4_0_stop(struct amdgpu_device *adev) 1304 { 1305 uint32_t tmp; 1306 int i, r = 0; 1307 1308 for (i = 0; i < adev->vcn.num_vcn_inst; ++i) { 1309 if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) { 1310 r = vcn_v4_0_stop_dpg_mode(adev, i); 1311 continue; 1312 } 1313 1314 /* wait for vcn idle */ 1315 r = SOC15_WAIT_ON_RREG(VCN, i, regUVD_STATUS, UVD_STATUS__IDLE, 0x7); 1316 if (r) 1317 return r; 1318 1319 tmp = UVD_LMI_STATUS__VCPU_LMI_WRITE_CLEAN_MASK | 1320 UVD_LMI_STATUS__READ_CLEAN_MASK | 1321 UVD_LMI_STATUS__WRITE_CLEAN_MASK | 1322 UVD_LMI_STATUS__WRITE_CLEAN_RAW_MASK; 1323 r = SOC15_WAIT_ON_RREG(VCN, i, regUVD_LMI_STATUS, tmp, tmp); 1324 if (r) 1325 return r; 1326 1327 /* disable LMI UMC channel */ 1328 tmp = RREG32_SOC15(VCN, i, regUVD_LMI_CTRL2); 1329 tmp |= UVD_LMI_CTRL2__STALL_ARB_UMC_MASK; 1330 WREG32_SOC15(VCN, i, regUVD_LMI_CTRL2, tmp); 1331 tmp = UVD_LMI_STATUS__UMC_READ_CLEAN_RAW_MASK | 1332 UVD_LMI_STATUS__UMC_WRITE_CLEAN_RAW_MASK; 1333 r = SOC15_WAIT_ON_RREG(VCN, i, regUVD_LMI_STATUS, tmp, tmp); 1334 if (r) 1335 return r; 1336 1337 /* block VCPU register access */ 1338 WREG32_P(SOC15_REG_OFFSET(VCN, i, regUVD_RB_ARB_CTRL), 1339 UVD_RB_ARB_CTRL__VCPU_DIS_MASK, 1340 ~UVD_RB_ARB_CTRL__VCPU_DIS_MASK); 1341 1342 /* reset VCPU */ 1343 WREG32_P(SOC15_REG_OFFSET(VCN, i, regUVD_VCPU_CNTL), 1344 UVD_VCPU_CNTL__BLK_RST_MASK, 1345 ~UVD_VCPU_CNTL__BLK_RST_MASK); 1346 1347 /* disable VCPU clock */ 1348 WREG32_P(SOC15_REG_OFFSET(VCN, i, regUVD_VCPU_CNTL), 0, 1349 ~(UVD_VCPU_CNTL__CLK_EN_MASK)); 1350 1351 /* apply soft reset */ 1352 tmp = RREG32_SOC15(VCN, i, regUVD_SOFT_RESET); 1353 tmp |= UVD_SOFT_RESET__LMI_UMC_SOFT_RESET_MASK; 1354 WREG32_SOC15(VCN, i, regUVD_SOFT_RESET, tmp); 1355 tmp = RREG32_SOC15(VCN, i, regUVD_SOFT_RESET); 1356 tmp |= UVD_SOFT_RESET__LMI_SOFT_RESET_MASK; 1357 WREG32_SOC15(VCN, i, regUVD_SOFT_RESET, tmp); 1358 1359 /* clear status */ 1360 WREG32_SOC15(VCN, i, regUVD_STATUS, 0); 1361 1362 /* apply HW clock gating */ 1363 vcn_v4_0_enable_clock_gating(adev, i); 1364 1365 /* enable VCN power gating */ 1366 vcn_v4_0_enable_static_power_gating(adev, i); 1367 } 1368 1369 if (adev->pm.dpm_enabled) 1370 amdgpu_dpm_enable_uvd(adev, false); 1371 1372 return 0; 1373 } 1374 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki