Hi Alex, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 89698becf06d341a700913c3d89ce2a914af69a2 commit: 582e2ce5b4ece37055c6ebe58ab48a4817d30b10 drm/amdgpu/display: FP fixes for DCN3.x (v4) date: 5 months ago config: powerpc64-randconfig-r013-20210413 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 9829f5e6b1bca9b61efc629770d28bb9014dec45) 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 powerpc64 cross compiling tool for clang build # apt-get install binutils-powerpc64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit... git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 582e2ce5b4ece37055c6ebe58ab48a4817d30b10 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc64 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/dcn30/dcn30_clk_mgr.c:214:2: error: implicit declaration of function 'enable_kernel_vsx' [-Werror,-Wimplicit-function-declaration] DC_FP_START(); ^ drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:68:3: note: expanded from macro 'DC_FP_START' enable_kernel_vsx(); \ ^ drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c:214:2: note: did you mean 'enable_kernel_fp'? drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:68:3: note: expanded from macro 'DC_FP_START' enable_kernel_vsx(); \ ^ arch/powerpc/include/asm/switch_to.h:40:13: note: 'enable_kernel_fp' declared here extern void enable_kernel_fp(void); ^ DC_FP_START(); ^ drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:71:3: note: expanded from macro 'DC_FP_START' enable_kernel_altivec(); \ ^ drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c:214:2: note: did you mean 'enable_kernel_fp'? drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:71:3: note: expanded from macro 'DC_FP_START' enable_kernel_altivec(); \ ^ arch/powerpc/include/asm/switch_to.h:40:13: note: 'enable_kernel_fp' declared here extern void enable_kernel_fp(void); ^ drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c:216:2: error: implicit declaration of function 'disable_kernel_vsx' [-Werror,-Wimplicit-function-declaration] DC_FP_END(); ^ drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:79:3: note: expanded from macro 'DC_FP_END' disable_kernel_vsx(); \ ^ drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c:216:2: note: did you mean 'disable_kernel_fp'? drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:79:3: note: expanded from macro 'DC_FP_END' disable_kernel_vsx(); \ ^ arch/powerpc/include/asm/switch_to.h:44:20: note: 'disable_kernel_fp' declared here static inline void disable_kernel_fp(void) ^ DC_FP_END(); ^ drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:82:3: note: expanded from macro 'DC_FP_END' disable_kernel_altivec(); \ ^ drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c:216:2: note: did you mean 'disable_kernel_fp'? drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:82:3: note: expanded from macro 'DC_FP_END' disable_kernel_altivec(); \ ^ arch/powerpc/include/asm/switch_to.h:44:20: note: 'disable_kernel_fp' declared here static inline void disable_kernel_fp(void) ^ 4 errors generated. -- drivers/gpu/drm/amd/amdgpu/../display/dc/dce/dce_hwseq.h:244:2: note: expanded from macro 'HWSEQ_DCN2_REG_LIST' SR(MPC_CRC_RESULT_C), \ ^~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:247:15: note: expanded from macro 'SR' .reg_name = BASE(mm ## reg_name ## _BASE_IDX) + \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:242:25: note: expanded from macro 'BASE_INNER' #define BASE_INNER(seg) DCN_BASE__INST0_SEG ## seg ^ <scratch space>:170:1: note: expanded from here DCN_BASE__INST0_SEG3 ^ drivers/gpu/drm/amd/amdgpu/../include/sienna_cichlid_ip_offset.h:373:52: note: expanded from macro 'DCN_BASE__INST0_SEG3' #define DCN_BASE__INST0_SEG3 0x00009000 ^ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:753:3: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides] HWSEQ_DCN30_REG_LIST() ^~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/dc/dce/dce_hwseq.h:357:2: note: expanded from macro 'HWSEQ_DCN30_REG_LIST' SR(MPC_CRC_RESULT_AR), \ ^~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:247:15: note: expanded from macro 'SR' .reg_name = BASE(mm ## reg_name ## _BASE_IDX) + \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:244:19: note: expanded from macro 'BASE' #define BASE(seg) BASE_INNER(seg) ^ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:242:25: note: expanded from macro 'BASE_INNER' #define BASE_INNER(seg) DCN_BASE__INST0_SEG ## seg ^ <scratch space>:159:1: note: expanded from here DCN_BASE__INST0_SEG3 ^ drivers/gpu/drm/amd/amdgpu/../include/sienna_cichlid_ip_offset.h:373:52: note: expanded from macro 'DCN_BASE__INST0_SEG3' #define DCN_BASE__INST0_SEG3 0x00009000 ^ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:753:3: note: previous initialization is here HWSEQ_DCN30_REG_LIST() ^~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/dc/dce/dce_hwseq.h:341:2: note: expanded from macro 'HWSEQ_DCN30_REG_LIST' HWSEQ_DCN2_REG_LIST(),\ ^~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/dc/dce/dce_hwseq.h:245:2: note: expanded from macro 'HWSEQ_DCN2_REG_LIST' SR(MPC_CRC_RESULT_AR), \ ^~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:247:15: note: expanded from macro 'SR' .reg_name = BASE(mm ## reg_name ## _BASE_IDX) + \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:242:25: note: expanded from macro 'BASE_INNER' #define BASE_INNER(seg) DCN_BASE__INST0_SEG ## seg ^ <scratch space>:174:1: note: expanded from here DCN_BASE__INST0_SEG3 ^ drivers/gpu/drm/amd/amdgpu/../include/sienna_cichlid_ip_offset.h:373:52: note: expanded from macro 'DCN_BASE__INST0_SEG3' #define DCN_BASE__INST0_SEG3 0x00009000 ^ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:875:6: warning: no previous prototype for function 'dcn30_dpp_destroy' [-Wmissing-prototypes] void dcn30_dpp_destroy(struct dpp **dpp) ^ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:875:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void dcn30_dpp_destroy(struct dpp **dpp) ^ static drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:992:16: warning: no previous prototype for function 'dcn30_hubbub_create' [-Wmissing-prototypes] struct hubbub *dcn30_hubbub_create(struct dc_context *ctx) ^ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:992:1: note: declare 'static' if the function is not intended to be used outside of this translation unit struct hubbub *dcn30_hubbub_create(struct dc_context *ctx) ^ static drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:1143:24: warning: no previous prototype for function 'dcn30_stream_encoder_create' [-Wmissing-prototypes] struct stream_encoder *dcn30_stream_encoder_create( ^ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:1143:1: note: declare 'static' if the function is not intended to be used outside of this translation unit struct stream_encoder *dcn30_stream_encoder_create( ^ static drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:1175:19: warning: no previous prototype for function 'dcn30_hwseq_create' [-Wmissing-prototypes] struct dce_hwseq *dcn30_hwseq_create( ^ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:1175:1: note: declare 'static' if the function is not intended to be used outside of this translation unit struct dce_hwseq *dcn30_hwseq_create( ^ static drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:1576:2: error: implicit declaration of function 'enable_kernel_vsx' [-Werror,-Wimplicit-function-declaration] DC_FP_START(); ^ drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:68:3: note: expanded from macro 'DC_FP_START' enable_kernel_vsx(); \ ^ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:1576:2: note: did you mean 'enable_kernel_fp'? drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:68:3: note: expanded from macro 'DC_FP_START' enable_kernel_vsx(); \ ^ arch/powerpc/include/asm/switch_to.h:40:13: note: 'enable_kernel_fp' declared here extern void enable_kernel_fp(void); ^ DC_FP_START(); ^ drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:71:3: note: expanded from macro 'DC_FP_START' enable_kernel_altivec(); \ ^ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:1576:2: note: did you mean 'enable_kernel_fp'? drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:71:3: note: expanded from macro 'DC_FP_START' enable_kernel_altivec(); \ ^ arch/powerpc/include/asm/switch_to.h:40:13: note: 'enable_kernel_fp' declared here extern void enable_kernel_fp(void); ^ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:1578:2: error: implicit declaration of function 'disable_kernel_vsx' [-Werror,-Wimplicit-function-declaration] DC_FP_END(); ^ drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:79:3: note: expanded from macro 'DC_FP_END' disable_kernel_vsx(); \ ^ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:1578:2: note: did you mean 'disable_kernel_fp'? drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:79:3: note: expanded from macro 'DC_FP_END' disable_kernel_vsx(); \ ^ arch/powerpc/include/asm/switch_to.h:44:20: note: 'disable_kernel_fp' declared here static inline void disable_kernel_fp(void) ^ DC_FP_END(); ^ drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:82:3: note: expanded from macro 'DC_FP_END' disable_kernel_altivec(); \ ^ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:1578:2: note: did you mean 'disable_kernel_fp'? drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:82:3: note: expanded from macro 'DC_FP_END' disable_kernel_altivec(); \ ^ arch/powerpc/include/asm/switch_to.h:44:20: note: 'disable_kernel_fp' declared here static inline void disable_kernel_fp(void) ^ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:2401:2: error: implicit declaration of function 'enable_kernel_vsx' [-Werror,-Wimplicit-function-declaration] DC_FP_START(); ^ drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:68:3: note: expanded from macro 'DC_FP_START' enable_kernel_vsx(); \ ^ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:2401:2: error: implicit declaration of function 'enable_kernel_altivec' [-Werror,-Wimplicit-function-declaration] drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:71:3: note: expanded from macro 'DC_FP_START' enable_kernel_altivec(); \ ^ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:2403:2: error: implicit declaration of function 'disable_kernel_vsx' [-Werror,-Wimplicit-function-declaration] DC_FP_END(); ^ drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:79:3: note: expanded from macro 'DC_FP_END' disable_kernel_vsx(); \ ^ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:2403:2: error: implicit declaration of function 'disable_kernel_altivec' [-Werror,-Wimplicit-function-declaration] drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:82:3: note: expanded from macro 'DC_FP_END' disable_kernel_altivec(); \ ^ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:2463:2: error: implicit declaration of function 'enable_kernel_vsx' [-Werror,-Wimplicit-function-declaration] DC_FP_START(); ^ drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:68:3: note: expanded from macro 'DC_FP_START' enable_kernel_vsx(); \ ^ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:2463:2: error: implicit declaration of function 'enable_kernel_altivec' [-Werror,-Wimplicit-function-declaration] drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:71:3: note: expanded from macro 'DC_FP_START' enable_kernel_altivec(); \ ^ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:2465:2: error: implicit declaration of function 'disable_kernel_vsx' [-Werror,-Wimplicit-function-declaration] DC_FP_END(); ^ drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:79:3: note: expanded from macro 'DC_FP_END' disable_kernel_vsx(); \ ^ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:2465:2: error: implicit declaration of function 'disable_kernel_altivec' [-Werror,-Wimplicit-function-declaration] drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:82:3: note: expanded from macro 'DC_FP_END' disable_kernel_altivec(); \ ^ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:2537:4: error: implicit declaration of function 'enable_kernel_vsx' [-Werror,-Wimplicit-function-declaration] DC_FP_START(); ^ drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:68:3: note: expanded from macro 'DC_FP_START' enable_kernel_vsx(); \ ^ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:2537:4: error: implicit declaration of function 'enable_kernel_altivec' [-Werror,-Wimplicit-function-declaration] drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:71:3: note: expanded from macro 'DC_FP_START' enable_kernel_altivec(); \ ^ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:2540:4: error: implicit declaration of function 'disable_kernel_vsx' [-Werror,-Wimplicit-function-declaration] DC_FP_END(); ^ drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:79:3: note: expanded from macro 'DC_FP_END' disable_kernel_vsx(); \ ^ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:2540:4: error: implicit declaration of function 'disable_kernel_altivec' [-Werror,-Wimplicit-function-declaration] drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:82:3: note: expanded from macro 'DC_FP_END' disable_kernel_altivec(); \ ^ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:2644:2: error: implicit declaration of function 'enable_kernel_vsx' [-Werror,-Wimplicit-function-declaration] DC_FP_START(); ^ drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:68:3: note: expanded from macro 'DC_FP_START' enable_kernel_vsx(); \ ^ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:2644:2: error: implicit declaration of function 'enable_kernel_altivec' [-Werror,-Wimplicit-function-declaration] drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:71:3: note: expanded from macro 'DC_FP_START' enable_kernel_altivec(); \ ^ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:2923:2: error: implicit declaration of function 'disable_kernel_vsx' [-Werror,-Wimplicit-function-declaration] DC_FP_END(); ^ drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:79:3: note: expanded from macro 'DC_FP_END' disable_kernel_vsx(); \ ^ fatal error: too many errors emitted, stopping now [-ferror-limit=] 115 warnings and 20 errors generated. vim +/enable_kernel_altivec +214 drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c 159 160 void dcn3_init_clocks(struct clk_mgr *clk_mgr_base) 161 { 162 struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); 163 unsigned int num_levels; 164 165 memset(&(clk_mgr_base->clks), 0, sizeof(struct dc_clocks)); 166 clk_mgr_base->clks.p_state_change_support = true; 167 clk_mgr_base->clks.prev_p_state_change_support = true; 168 clk_mgr->smu_present = false; 169 170 if (!clk_mgr_base->bw_params) 171 return; 172 173 if (!clk_mgr_base->force_smu_not_present && dcn30_smu_get_smu_version(clk_mgr, &clk_mgr->smu_ver)) 174 clk_mgr->smu_present = true; 175 176 if (!clk_mgr->smu_present) 177 return; 178 179 // do we fail if these fail? if so, how? do we not care to check? 180 dcn30_smu_check_driver_if_version(clk_mgr); 181 dcn30_smu_check_msg_header_version(clk_mgr); 182 183 /* DCFCLK */ 184 dcn3_init_single_clock(clk_mgr, PPCLK_DCEFCLK, 185 &clk_mgr_base->bw_params->clk_table.entries[0].dcfclk_mhz, 186 &num_levels); 187 188 /* DTBCLK */ 189 dcn3_init_single_clock(clk_mgr, PPCLK_DTBCLK, 190 &clk_mgr_base->bw_params->clk_table.entries[0].dtbclk_mhz, 191 &num_levels); 192 193 // DPREFCLK ??? 194 195 /* DISPCLK */ 196 dcn3_init_single_clock(clk_mgr, PPCLK_DISPCLK, 197 &clk_mgr_base->bw_params->clk_table.entries[0].dispclk_mhz, 198 &num_levels); 199 200 /* DPPCLK */ 201 dcn3_init_single_clock(clk_mgr, PPCLK_PIXCLK, 202 &clk_mgr_base->bw_params->clk_table.entries[0].dppclk_mhz, 203 &num_levels); 204 205 /* PHYCLK */ 206 dcn3_init_single_clock(clk_mgr, PPCLK_PHYCLK, 207 &clk_mgr_base->bw_params->clk_table.entries[0].phyclk_mhz, 208 &num_levels); 209 210 /* Get UCLK, update bounding box */ 211 clk_mgr_base->funcs->get_memclk_states_from_smu(clk_mgr_base); 212 213 /* WM range table */ 215 dcn3_build_wm_range_table(clk_mgr); 217 } 218 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org