Hi Vivek, kernel test robot noticed the following build errors: [auto build test ERROR on drm-xe/drm-xe-next] [also build test ERROR on drm/drm-next drm-exynos/exynos-drm-next drm-intel/for-linux-next drm-intel/for-linux-next-fixes drm-misc/drm-misc-next drm-tip/drm-tip linus/master v6.12-rc4 next-20241021] [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/Vivek-Kasireddy/PCI-P2PDMA-Don-t-enforce-ACS-check-for-functions-of-same-device/20241021-134804 base: https://gitlab.freedesktop.org/drm/xe/kernel.git drm-xe-next patch link: https://lore.kernel.org/r/20241021052236.1820329-5-vivek.kasireddy%40intel.com patch subject: [PATCH v2 4/5] drm/xe/bo: Create new dma_addr array for dmabuf BOs associated with VFs config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20241022/202410221832.R04DR21j-lkp@xxxxxxxxx/config) compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241022/202410221832.R04DR21j-lkp@xxxxxxxxx/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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202410221832.R04DR21j-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): >> drivers/gpu/drm/xe/xe_bo.c:591:15: error: subscript of pointer to incomplete type 'struct drm_pagemap_dma_addr' 591 | bo->dma_addr[i] = drm_pagemap_dma_addr_encode(addr, | ~~~~~~~~~~~~^ drivers/gpu/drm/xe/xe_bo_types.h:78:9: note: forward declaration of 'struct drm_pagemap_dma_addr' 78 | struct drm_pagemap_dma_addr *dma_addr; | ^ >> drivers/gpu/drm/xe/xe_bo.c:591:21: error: call to undeclared function 'drm_pagemap_dma_addr_encode'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 591 | bo->dma_addr[i] = drm_pagemap_dma_addr_encode(addr, | ^ >> drivers/gpu/drm/xe/xe_bo.c:592:7: error: use of undeclared identifier 'DRM_INTERCONNECT_DRIVER' 592 | DRM_INTERCONNECT_DRIVER, | ^ >> drivers/gpu/drm/xe/xe_bo.c:626:48: error: invalid application of 'sizeof' to an incomplete type 'struct drm_pagemap_dma_addr' 626 | bo->dma_addr = kmalloc_array(sg->nents, sizeof(*bo->dma_addr), | ^~~~~~~~~~~~~~~ include/linux/slab.h:925:63: note: expanded from macro 'kmalloc_array' 925 | #define kmalloc_array(...) alloc_hooks(kmalloc_array_noprof(__VA_ARGS__)) | ^~~~~~~~~~~ include/linux/alloc_tag.h:210:31: note: expanded from macro 'alloc_hooks' 210 | alloc_hooks_tag(&_alloc_tag, _do_alloc); \ | ^~~~~~~~~ include/linux/alloc_tag.h:202:9: note: expanded from macro 'alloc_hooks_tag' 202 | typeof(_do_alloc) _res = _do_alloc; \ | ^~~~~~~~~ drivers/gpu/drm/xe/xe_bo_types.h:78:9: note: forward declaration of 'struct drm_pagemap_dma_addr' 78 | struct drm_pagemap_dma_addr *dma_addr; | ^ >> drivers/gpu/drm/xe/xe_bo.c:626:48: error: invalid application of 'sizeof' to an incomplete type 'struct drm_pagemap_dma_addr' 626 | bo->dma_addr = kmalloc_array(sg->nents, sizeof(*bo->dma_addr), | ^~~~~~~~~~~~~~~ include/linux/slab.h:925:63: note: expanded from macro 'kmalloc_array' 925 | #define kmalloc_array(...) alloc_hooks(kmalloc_array_noprof(__VA_ARGS__)) | ^~~~~~~~~~~ include/linux/alloc_tag.h:210:31: note: expanded from macro 'alloc_hooks' 210 | alloc_hooks_tag(&_alloc_tag, _do_alloc); \ | ^~~~~~~~~ include/linux/alloc_tag.h:202:27: note: expanded from macro 'alloc_hooks_tag' 202 | typeof(_do_alloc) _res = _do_alloc; \ | ^~~~~~~~~ drivers/gpu/drm/xe/xe_bo_types.h:78:9: note: forward declaration of 'struct drm_pagemap_dma_addr' 78 | struct drm_pagemap_dma_addr *dma_addr; | ^ 5 errors generated. Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for MODVERSIONS Depends on [n]: MODULES [=y] && !COMPILE_TEST [=y] Selected by [y]: - RANDSTRUCT_FULL [=y] && (CC_HAS_RANDSTRUCT [=y] || GCC_PLUGINS [=n]) && MODULES [=y] vim +591 drivers/gpu/drm/xe/xe_bo.c 570 571 572 static void xe_bo_translate_iova_to_dpa(struct iommu_domain *domain, 573 struct xe_bo *bo, struct sg_table *sg, 574 resource_size_t io_start, int vfid) 575 { 576 struct xe_device *xe = xe_bo_device(bo); 577 struct xe_gt *gt = xe_root_mmio_gt(xe); 578 struct scatterlist *sgl; 579 struct xe_bo *lmem_bo; 580 phys_addr_t phys; 581 dma_addr_t addr; 582 u64 offset, i; 583 584 lmem_bo = xe_gt_sriov_pf_config_get_lmem_obj(gt, ++vfid); 585 586 for_each_sgtable_dma_sg(sg, sgl, i) { 587 phys = iommu_iova_to_phys(domain, sg_dma_address(sgl)); 588 offset = phys - io_start; 589 addr = xe_bo_addr(lmem_bo, offset, sg_dma_len(sgl)); 590 > 591 bo->dma_addr[i] = drm_pagemap_dma_addr_encode(addr, > 592 DRM_INTERCONNECT_DRIVER, 593 get_order(sg_dma_len(sgl)), 594 DMA_BIDIRECTIONAL); 595 } 596 } 597 598 static int xe_bo_sg_to_dma_addr_array(struct sg_table *sg, struct xe_bo *bo) 599 { 600 struct xe_device *xe = xe_bo_device(bo); 601 struct iommu_domain *domain; 602 resource_size_t io_start; 603 struct pci_dev *pdev; 604 phys_addr_t phys; 605 int vfid; 606 607 if (!IS_SRIOV_PF(xe)) 608 return 0; 609 610 domain = iommu_get_domain_for_dev(xe->drm.dev); 611 if (!domain) 612 return 0; 613 614 phys = iommu_iova_to_phys(domain, sg_dma_address(sg->sgl)); 615 if (page_is_ram(PFN_DOWN(phys))) 616 return 0; 617 618 pdev = xe_find_vf_dev(xe, phys); 619 if (!pdev) 620 return 0; 621 622 vfid = pci_iov_vf_id(pdev); 623 if (vfid < 0) 624 return 0; 625 > 626 bo->dma_addr = kmalloc_array(sg->nents, sizeof(*bo->dma_addr), 627 GFP_KERNEL); 628 if (!bo->dma_addr) 629 return -ENOMEM; 630 631 bo->is_devmem_external = true; 632 io_start = pci_resource_start(pdev, LMEM_BAR); 633 xe_bo_translate_iova_to_dpa(domain, bo, sg, io_start, vfid); 634 635 return 0; 636 } 637 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
