CC: [email protected] CC: [email protected] TO: Jonathan Kim <[email protected]> CC: Alex Deucher <[email protected]> CC: Felix Kuehling <[email protected]>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 5472f14a37421d1bca3dddf33cabd3bd6dbefbbc commit: 3f46c4e9ce25bbcb9d619dbce57c8737c856b272 drm/amdkfd: report xgmi bandwidth between direct peers to the kfd date: 5 months ago :::::: branch date: 25 hours ago :::::: commit date: 5 months ago compiler: alpha-linux-gcc (GCC) 11.2.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> cppcheck possible warnings: (new ones prefixed by >>, may not real problems) In file included from drivers/gpu/drm/amd/amdgpu/../pm/amdgpu_pm.c: >> drivers/gpu/drm/amd/pm/amdgpu_pm.c:1109:15: warning: Shifting signed 32-bit >> value by 31 bits is undefined behaviour. See condition at line 1107. >> [shiftTooManyBitsSigned] *mask |= 1 << level; ^ drivers/gpu/drm/amd/pm/amdgpu_pm.c:1107:21: note: Assuming that condition 'level>31' is not redundant if (ret || level > 31) ^ drivers/gpu/drm/amd/pm/amdgpu_pm.c:1109:15: note: Shift *mask |= 1 << level; ^ >> drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c:568:59: warning: Uninitialized >> variable: peer_adev [uninitvar] num_links = is_min ? 1 : amdgpu_xgmi_get_num_links(adev, peer_adev); ^ vim +568 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c db8b62c04b2344 Shaoyun Liu 2018-07-06 555 3f46c4e9ce25bb Jonathan Kim 2021-05-12 556 int amdgpu_amdkfd_get_xgmi_bandwidth_mbytes(struct kgd_dev *dst, struct kgd_dev *src, bool is_min) 3f46c4e9ce25bb Jonathan Kim 2021-05-12 557 { 3f46c4e9ce25bb Jonathan Kim 2021-05-12 558 struct amdgpu_device *adev = (struct amdgpu_device *)dst, *peer_adev; 3f46c4e9ce25bb Jonathan Kim 2021-05-12 559 int num_links; 3f46c4e9ce25bb Jonathan Kim 2021-05-12 560 3f46c4e9ce25bb Jonathan Kim 2021-05-12 561 if (adev->asic_type != CHIP_ALDEBARAN) 3f46c4e9ce25bb Jonathan Kim 2021-05-12 562 return 0; 3f46c4e9ce25bb Jonathan Kim 2021-05-12 563 3f46c4e9ce25bb Jonathan Kim 2021-05-12 564 if (src) 3f46c4e9ce25bb Jonathan Kim 2021-05-12 565 peer_adev = (struct amdgpu_device *)src; 3f46c4e9ce25bb Jonathan Kim 2021-05-12 566 3f46c4e9ce25bb Jonathan Kim 2021-05-12 567 /* num links returns 0 for indirect peers since indirect route is unknown. */ 3f46c4e9ce25bb Jonathan Kim 2021-05-12 @568 num_links = is_min ? 1 : amdgpu_xgmi_get_num_links(adev, peer_adev); 3f46c4e9ce25bb Jonathan Kim 2021-05-12 569 if (num_links < 0) { 3f46c4e9ce25bb Jonathan Kim 2021-05-12 570 DRM_ERROR("amdgpu: failed to get xgmi num links between node %d and %d. ret = %d\n", 3f46c4e9ce25bb Jonathan Kim 2021-05-12 571 adev->gmc.xgmi.physical_node_id, 3f46c4e9ce25bb Jonathan Kim 2021-05-12 572 peer_adev->gmc.xgmi.physical_node_id, num_links); 3f46c4e9ce25bb Jonathan Kim 2021-05-12 573 num_links = 0; 3f46c4e9ce25bb Jonathan Kim 2021-05-12 574 } 3f46c4e9ce25bb Jonathan Kim 2021-05-12 575 3f46c4e9ce25bb Jonathan Kim 2021-05-12 576 /* Aldebaran xGMI DPM is defeatured so assume x16 x 25Gbps for bandwidth. */ 3f46c4e9ce25bb Jonathan Kim 2021-05-12 577 return (num_links * 16 * 25000)/BITS_PER_BYTE; 3f46c4e9ce25bb Jonathan Kim 2021-05-12 578 } 3f46c4e9ce25bb Jonathan Kim 2021-05-12 579 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected] _______________________________________________ kbuild mailing list -- [email protected] To unsubscribe send an email to [email protected]
