tree: https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git pending-5.13 head: 9e20d32ceee869b30775be931beb33f561a4f955 commit: 6fbba0e81319c3e92bc038421cb1750160cb74bd [106/176] drm/amd/display: Cover edge-case when changing DISPCLK WDIVIDER config: i386-randconfig-a003-20210715 (attached as .config) compiler: gcc-10 (Ubuntu 10.3.0-1ubuntu1~20.04) 10.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git/c... git remote add sashal-linux-stable https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git git fetch --no-tags sashal-linux-stable pending-5.13 git checkout 6fbba0e81319c3e92bc038421cb1750160cb74bd # save the attached .config to linux build tree mkdir build_dir make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn20/dcn20_clk_mgr.c: In function 'dcn20_update_clocks_update_dentist': 154 | if (!stream_enc->funcs->get_fifo_cal_average_level) | ^~ drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn20/dcn20_clk_mgr.c:156:34: error: 'const struct stream_encoder_funcs' has no member named 'get_fifo_cal_average_level' 156 | fifo_level = stream_enc->funcs->get_fifo_cal_average_level( | ^~ 159 | dccg->funcs->set_fifo_errdet_ovr_en( | ^~ 163 | dccg->funcs->otg_drop_pixel( | ^~ drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn20/dcn20_clk_mgr.c:166:15: error: 'const struct dccg_funcs' has no member named 'set_fifo_errdet_ovr_en' 166 | dccg->funcs->set_fifo_errdet_ovr_en( | ^~ drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn20/dcn20_clk_mgr.c:185:26: error: 'const struct stream_encoder_funcs' has no member named 'get_fifo_cal_average_level' 185 | if (!stream_enc->funcs->get_fifo_cal_average_level) | ^~ drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn20/dcn20_clk_mgr.c:187:34: error: 'const struct stream_encoder_funcs' has no member named 'get_fifo_cal_average_level' 187 | fifo_level = stream_enc->funcs->get_fifo_cal_average_level( | ^~ drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn20/dcn20_clk_mgr.c:190:15: error: 'const struct dccg_funcs' has no member named 'set_fifo_errdet_ovr_en' 190 | dccg->funcs->set_fifo_errdet_ovr_en(dccg, true); | ^~ 192 | dccg->funcs->otg_add_pixel(dccg, | ^~ drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn20/dcn20_clk_mgr.c:194:15: error: 'const struct dccg_funcs' has no member named 'set_fifo_errdet_ovr_en' 194 | dccg->funcs->set_fifo_errdet_ovr_en(dccg, false); | ^~ drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn20/dcn20_clk_mgr.c: At top level: drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn20/dcn20_clk_mgr.c:400:6: warning: no previous prototype for 'dcn2_enable_pme_wa' [-Wmissing-prototypes] 400 | void dcn2_enable_pme_wa(struct clk_mgr *clk_mgr_base) | ^~~~~~~~~~~~~~~~~~ vim +154 drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn20/dcn20_clk_mgr.c 125 126 void dcn20_update_clocks_update_dentist(struct clk_mgr_internal *clk_mgr, struct dc_state *context) 127 { 128 int dpp_divider = DENTIST_DIVIDER_RANGE_SCALE_FACTOR 129 * clk_mgr->base.dentist_vco_freq_khz / clk_mgr->base.clks.dppclk_khz; 130 int disp_divider = DENTIST_DIVIDER_RANGE_SCALE_FACTOR 131 * clk_mgr->base.dentist_vco_freq_khz / clk_mgr->base.clks.dispclk_khz; 132 133 uint32_t dppclk_wdivider = dentist_get_did_from_divider(dpp_divider); 134 uint32_t dispclk_wdivider = dentist_get_did_from_divider(disp_divider); 135 uint32_t current_dispclk_wdivider; 136 uint32_t i; 137 138 REG_GET(DENTIST_DISPCLK_CNTL, 139 DENTIST_DISPCLK_WDIVIDER, &current_dispclk_wdivider); 140 141 /* When changing divider to or from 127, some extra programming is required to prevent corruption */ 142 if (current_dispclk_wdivider == 127 && dispclk_wdivider != 127) { 143 for (i = 0; i < clk_mgr->base.ctx->dc->res_pool->pipe_count; i++) { 144 struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i]; 145 uint32_t fifo_level; 146 struct dccg *dccg = clk_mgr->base.ctx->dc->res_pool->dccg; 147 struct stream_encoder *stream_enc = pipe_ctx->stream_res.stream_enc; 148 int32_t N; 149 int32_t j; 150 151 if (!pipe_ctx->stream) 152 continue; 153 /* Virtual encoders don't have this function */ 155 continue; 156 fifo_level = stream_enc->funcs->get_fifo_cal_average_level( 157 stream_enc); 158 N = fifo_level / 4; 160 dccg, 161 true); 162 for (j = 0; j < N - 4; j++) 164 dccg, 165 pipe_ctx->stream_res.tg->inst); 166 dccg->funcs->set_fifo_errdet_ovr_en( 167 dccg, 168 false); 169 } 170 } else if (dispclk_wdivider == 127 && current_dispclk_wdivider != 127) { 171 REG_UPDATE(DENTIST_DISPCLK_CNTL, 172 DENTIST_DISPCLK_WDIVIDER, 126); 173 REG_WAIT(DENTIST_DISPCLK_CNTL, DENTIST_DISPCLK_CHG_DONE, 1, 50, 100); 174 for (i = 0; i < clk_mgr->base.ctx->dc->res_pool->pipe_count; i++) { 175 struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i]; 176 struct dccg *dccg = clk_mgr->base.ctx->dc->res_pool->dccg; 177 struct stream_encoder *stream_enc = pipe_ctx->stream_res.stream_enc; 178 uint32_t fifo_level; 179 int32_t N; 180 int32_t j; 181 182 if (!pipe_ctx->stream) 183 continue; 184 /* Virtual encoders don't have this function */ 186 continue; 187 fifo_level = stream_enc->funcs->get_fifo_cal_average_level( 188 stream_enc); 189 N = fifo_level / 4; 190 dccg->funcs->set_fifo_errdet_ovr_en(dccg, true); 191 for (j = 0; j < 12 - N; j++) 193 pipe_ctx->stream_res.tg->inst); 194 dccg->funcs->set_fifo_errdet_ovr_en(dccg, false); 195 } 196 } 197 198 REG_UPDATE(DENTIST_DISPCLK_CNTL, 199 DENTIST_DISPCLK_WDIVIDER, dispclk_wdivider); 200 // REG_WAIT(DENTIST_DISPCLK_CNTL, DENTIST_DISPCLK_CHG_DONE, 1, 5, 100); 201 REG_UPDATE(DENTIST_DISPCLK_CNTL, 202 DENTIST_DPPCLK_WDIVIDER, dppclk_wdivider); 203 REG_WAIT(DENTIST_DISPCLK_CNTL, DENTIST_DPPCLK_CHG_DONE, 1, 5, 100); 204 } 205 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org