Hi Kuogee, kernel test robot noticed the following build warnings:
[auto build test WARNING on drm-misc/drm-misc-next] [also build test WARNING on drm/drm-next drm-exynos/exynos-drm-next drm-intel/for-linux-next drm-intel/for-linux-next-fixes drm-tip/drm-tip linus/master v6.3-rc7 next-20230420] [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/Kuogee-Hsieh/drm-msm-dpu-add-support-for-DSC-encoder-v1-2-engine/20230421-072925 base: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next patch link: https://lore.kernel.org/r/1682033114-28483-2-git-send-email-quic_khsieh%40quicinc.com patch subject: [PATCH v1 1/5] drm/msm/dpu: add support for DSC encoder v1.2 engine config: sparc-allyesconfig (https://download.01.org/0day-ci/archive/20230421/202304211131.lqjki60t-...@intel.com/config) compiler: sparc64-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/1c3eede9e4f8fc63f52eddb0c55f63d59fad4b68 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Kuogee-Hsieh/drm-msm-dpu-add-support-for-DSC-encoder-v1-2-engine/20230421-072925 git checkout 1c3eede9e4f8fc63f52eddb0c55f63d59fad4b68 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=sparc olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=sparc SHELL=/bin/bash drivers/gpu/drm/msm/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <l...@intel.com> | Link: https://lore.kernel.org/oe-kbuild-all/202304211131.lqjki60t-...@intel.com/ All warnings (new ones prefixed by >>): drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc_1_2.c: In function 'dpu_hw_dsc_config_1_2': drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc_1_2.c:227:31: error: implicit declaration of function 'drm_dsc_calculate_flatness_det_thresh' [-Werror=implicit-function-declaration] 227 | det_thresh_flatness = drm_dsc_calculate_flatness_det_thresh(dsc); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ >> drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc_1_2.c:124:23: warning: variable >> 'off' set but not used [-Wunused-but-set-variable] 124 | void __iomem *off; | ^~~ cc1: some warnings being treated as errors vim +/off +124 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc_1_2.c 112 113 static void dpu_hw_dsc_config_1_2(struct dpu_hw_dsc *hw_dsc, 114 struct drm_dsc_config *dsc, 115 u32 mode, 116 u32 initial_lines) 117 { 118 struct dpu_hw_blk_reg_map *hw; 119 u32 offset; 120 u32 data = 0; 121 u32 det_thresh_flatness; 122 u32 num_active_ss_per_enc; 123 u32 bpp; > 124 void __iomem *off; 125 126 if (!hw_dsc || !dsc) 127 return; 128 129 hw = &hw_dsc->hw; 130 131 _dsc_subblk_offset(hw_dsc, DPU_DSC_ENC, &offset); 132 133 if (mode & DSC_MODE_SPLIT_PANEL) 134 data |= BIT(0); 135 136 if (mode & DSC_MODE_MULTIPLEX) 137 data |= BIT(1); 138 139 num_active_ss_per_enc = dsc->slice_count; 140 if (mode & DSC_MODE_MULTIPLEX) 141 num_active_ss_per_enc = dsc->slice_count >> 1; 142 143 data |= (num_active_ss_per_enc & 0x3) << 7; 144 145 DPU_REG_WRITE(hw, DSC_CMN_MAIN_CNF, data); 146 147 data = (initial_lines & 0xff); 148 149 if (mode & DSC_MODE_VIDEO) 150 data |= BIT(9); 151 152 data |= (_dsc_calc_ob_max_addr(hw_dsc, num_active_ss_per_enc) << 18); 153 154 DPU_REG_WRITE(hw, offset + ENC_DF_CTRL, data); 155 156 data = (dsc->dsc_version_minor & 0xf) << 28; 157 if (dsc->dsc_version_minor == 0x2) { 158 if (dsc->native_422) 159 data |= BIT(22); 160 if (dsc->native_420) 161 data |= BIT(21); 162 } 163 164 bpp = dsc->bits_per_pixel; 165 /* as per hw requirement bpp should be programmed 166 * twice the actual value in case of 420 or 422 encoding 167 */ 168 if (dsc->native_422 || dsc->native_420) 169 bpp = 2 * bpp; 170 data |= (dsc->block_pred_enable ? 1 : 0) << 20; 171 data |= bpp << 10; 172 data |= (dsc->line_buf_depth & 0xf) << 6; 173 data |= dsc->convert_rgb << 4; 174 data |= dsc->bits_per_component & 0xf; 175 176 DPU_REG_WRITE(hw, offset + DSC_MAIN_CONF, data); 177 178 data = (dsc->pic_width & 0xffff) | 179 ((dsc->pic_height & 0xffff) << 16); 180 181 DPU_REG_WRITE(hw, offset + DSC_PICTURE_SIZE, data); 182 183 data = (dsc->slice_width & 0xffff) | 184 ((dsc->slice_height & 0xffff) << 16); 185 186 DPU_REG_WRITE(hw, offset + DSC_SLICE_SIZE, data); 187 188 DPU_REG_WRITE(hw, offset + DSC_MISC_SIZE, 189 (dsc->slice_chunk_size) & 0xffff); 190 191 data = (dsc->initial_xmit_delay & 0xffff) | 192 ((dsc->initial_dec_delay & 0xffff) << 16); 193 194 DPU_REG_WRITE(hw, offset + DSC_HRD_DELAYS, data); 195 196 DPU_REG_WRITE(hw, offset + DSC_RC_SCALE, 197 dsc->initial_scale_value & 0x3f); 198 199 data = (dsc->scale_increment_interval & 0xffff) | 200 ((dsc->scale_decrement_interval & 0x7ff) << 16); 201 202 DPU_REG_WRITE(hw, offset + DSC_RC_SCALE_INC_DEC, data); 203 204 data = (dsc->first_line_bpg_offset & 0x1f) | 205 ((dsc->second_line_bpg_offset & 0x1f) << 5); 206 207 DPU_REG_WRITE(hw, offset + DSC_RC_OFFSETS_1, data); 208 209 data = (dsc->nfl_bpg_offset & 0xffff) | 210 ((dsc->slice_bpg_offset & 0xffff) << 16); 211 212 DPU_REG_WRITE(hw, offset + DSC_RC_OFFSETS_2, data); 213 214 data = (dsc->initial_offset & 0xffff) | 215 ((dsc->final_offset & 0xffff) << 16); 216 217 DPU_REG_WRITE(hw, offset + DSC_RC_OFFSETS_3, data); 218 219 data = (dsc->nsl_bpg_offset & 0xffff) | 220 ((dsc->second_line_offset_adj & 0xffff) << 16); 221 222 DPU_REG_WRITE(hw, offset + DSC_RC_OFFSETS_4, data); 223 224 data = (dsc->flatness_min_qp & 0x1f); 225 data |= (dsc->flatness_max_qp & 0x1f) << 5; 226 227 det_thresh_flatness = drm_dsc_calculate_flatness_det_thresh(dsc); 228 data |= (det_thresh_flatness & 0xff) << 10; 229 230 DPU_REG_WRITE(hw, offset + DSC_FLATNESS_QP, data); 231 232 DPU_REG_WRITE(hw, offset + DSC_RC_MODEL_SIZE, 233 (dsc->rc_model_size) & 0xffff); 234 235 data = dsc->rc_edge_factor & 0xf; 236 data |= (dsc->rc_quant_incr_limit0 & 0x1f) << 8; 237 data |= (dsc->rc_quant_incr_limit1 & 0x1f) << 13; 238 data |= (dsc->rc_tgt_offset_high & 0xf) << 20; 239 data |= (dsc->rc_tgt_offset_low & 0xf) << 24; 240 241 DPU_REG_WRITE(hw, offset + DSC_RC_CONFIG, data); 242 243 /* program the dsc wrapper */ 244 _dsc_subblk_offset(hw_dsc, DPU_DSC_CTL, &offset); 245 246 off = hw->blk_addr + offset; 247 248 data = BIT(0); /* encoder enable */ 249 if (dsc->native_422) 250 data |= BIT(8); 251 else if (dsc->native_420) 252 data |= BIT(9); 253 if (!dsc->convert_rgb) 254 data |= BIT(10); 255 if (dsc->bits_per_component == 8) 256 data |= BIT(11); 257 if (mode & DSC_MODE_SPLIT_PANEL) 258 data |= BIT(12); 259 if (mode & DSC_MODE_MULTIPLEX) 260 data |= BIT(13); 261 if (!(mode & DSC_MODE_VIDEO)) 262 data |= BIT(17); 263 264 DPU_REG_WRITE(hw, offset + DSC_CFG, data); 265 } 266 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
