* [linux-next:master 11999/15183] drivers/gpu/drm/amd/amdgpu/../display/dc/dml2_0/dml21/inc/bounding_boxes/utm_qos_model_dchub_v2.h:66:undefined reference to `__udivdi3'
@ 2026-08-14 19:17 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2026-08-14 19:17 UTC (permalink / raw)
To: Aurabindo Pillai; +Cc: oe-kbuild-all, Alex Deucher, Roman Li, Ivan Lipski
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: 2697ef8943c9985c14708a6429e21812693857b2
commit: 992694ad28584188725751f695a85661e8e3797a [11999/15183] drm/amd/display: Enable DCN6 sources compilation
config: i386-randconfig-054-20260814 (https://download.01.org/0day-ci/archive/20260815/202608150342.p7BAOsOA-lkp@intel.com/config)
compiler: gcc-13 (Debian 13.3.0-16) 13.3.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260815/202608150342.p7BAOsOA-lkp@intel.com/reproduce)
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 <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202608150342.p7BAOsOA-lkp@intel.com/
All errors (new ones prefixed by >>):
ld: drivers/gpu/drm/amd/display/dc/dml2_0/dml21/src/dml2_utm_soc_bb/dml2_utm_soc_bb_dcn6.o: in function `dchub_v2_get_sop_total_available_bandwidth_KBps':
>> drivers/gpu/drm/amd/amdgpu/../display/dc/dml2_0/dml21/inc/bounding_boxes/utm_qos_model_dchub_v2.h:66:(.text+0x6e): undefined reference to `__udivdi3'
>> ld: drivers/gpu/drm/amd/amdgpu/../display/dc/dml2_0/dml21/inc/bounding_boxes/utm_qos_model_dchub_v2.h:71:(.text+0x97): undefined reference to `__udivdi3'
ld: drivers/gpu/drm/amd/amdgpu/../display/dc/dml2_0/dml21/inc/bounding_boxes/utm_qos_model_dchub_v2.h:76:(.text+0xd0): undefined reference to `__udivdi3'
ld: drivers/gpu/drm/amd/amdgpu/../display/dc/dml2_0/dml21/inc/bounding_boxes/utm_qos_model_dchub_v2.h:79:(.text+0xf4): undefined reference to `__udivdi3'
ld: drivers/gpu/drm/amd/display/dc/dml2_0/dml21/src/dml2_utm_soc_bb/dml2_utm_soc_bb_dcn6.o: in function `dchub_v2_is_qos_bandwidth_supported_by_sop':
drivers/gpu/drm/amd/amdgpu/../display/dc/dml2_0/dml21/inc/bounding_boxes/utm_qos_model_dchub_v2.h:115:(.text+0x18a): undefined reference to `__udivdi3'
ld: drivers/gpu/drm/amd/display/dc/dml2_0/dml21/src/dml2_utm_soc_bb/dml2_utm_soc_bb_dcn6.o:drivers/gpu/drm/amd/amdgpu/../display/dc/dml2_0/dml21/inc/bounding_boxes/utm_qos_model_dchub_v2.h:117: more undefined references to `__udivdi3' follow
vim +66 drivers/gpu/drm/amd/amdgpu/../display/dc/dml2_0/dml21/inc/bounding_boxes/utm_qos_model_dchub_v2.h
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 53
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 54 static inline void dchub_v2_get_sop_total_available_bandwidth_KBps(
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 55 const struct utm_qos_model *model,
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 56 struct utm_qos_model_dchub_memory_path_bandwidth_v2 *total_available_bandwidth,
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 57 uint8_t sop_index)
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 58 {
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 59 const struct utm_soc_operating_point *sop = &model->sops[sop_index];
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 60 const struct utm_qos_model_socbb *socbb = &model->socbb;
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 61 uint64_t dram_available_bandwidth_KBps_nominal;
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 62 uint64_t fabric_available_bandwidth_KBps_nominal;
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 63 uint64_t dram_available_bandwidth_KBps_urgent;
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 64 uint64_t fabric_available_bandwidth_KBps_urgent;
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 65
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 @66 dram_available_bandwidth_KBps_nominal = (uint64_t) sop->uclk_khz
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 67 * socbb->dram_channel_count
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 68 * socbb->dram_channel_width_bytes
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 69 * socbb->dram_transactions_per_clock
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 70 * socbb->dram_derate_percent_nominal / 100;
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 @71 dram_available_bandwidth_KBps_urgent = (uint64_t) sop->uclk_khz
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 72 * socbb->dram_channel_count
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 73 * socbb->dram_channel_width_bytes
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 74 * socbb->dram_transactions_per_clock
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 75 * socbb->dram_derate_percent_urgent / 100;
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 76 fabric_available_bandwidth_KBps_nominal = (uint64_t) sop->fclk_khz
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 77 * socbb->fabric_datapath_to_dcn_data_return_bytes
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 78 * socbb->fabric_derate_percent_nominal / 100;
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 79 fabric_available_bandwidth_KBps_urgent = (uint64_t) sop->fclk_khz
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 80 * socbb->fabric_datapath_to_dcn_data_return_bytes
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 81 * socbb->fabric_derate_percent_urgent / 100;
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 82
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 83 total_available_bandwidth->nominal_bandwidth_KBps =
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 84 dram_available_bandwidth_KBps_nominal < fabric_available_bandwidth_KBps_nominal ?
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 85 (uint32_t) dram_available_bandwidth_KBps_nominal :
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 86 (uint32_t) fabric_available_bandwidth_KBps_nominal;
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 87 total_available_bandwidth->urgent_bandwidth_KBps =
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 88 dram_available_bandwidth_KBps_urgent < fabric_available_bandwidth_KBps_urgent ?
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 89 (uint32_t) dram_available_bandwidth_KBps_urgent :
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 90 (uint32_t) fabric_available_bandwidth_KBps_urgent;
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 91 }
7f7d7ea1fa5151 Aurabindo Pillai 2026-07-22 92
:::::: The code at line 66 was first introduced by commit
:::::: 7f7d7ea1fa515157162d0d21245925551ed103a1 drm/amd/display: Add new sources for DCN6
:::::: TO: Aurabindo Pillai <aurabindo.pillai@amd.com>
:::::: CC: Alex Deucher <alexander.deucher@amd.com>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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2026-08-14 19:17 [linux-next:master 11999/15183] drivers/gpu/drm/amd/amdgpu/../display/dc/dml2_0/dml21/inc/bounding_boxes/utm_qos_model_dchub_v2.h:66:undefined reference to `__udivdi3' kernel test robot
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