Hi Ashok, Thank you for the patch! Yet something to improve: [auto build test ERROR on pci/next] [also build test ERROR on iommu/next linux/master linus/master v5.8-rc6 next-20200720] [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] url: https://github.com/0day-ci/linux/commits/Ashok-Raj/PCI-ATS-PASID-and-PRI-are-only-enumerated-in-PF-devices/20200721-004510 base: https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git next config: x86_64-kexec (attached as .config) compiler: gcc-9 (Debian 9.3.0-14) 9.3.0 reproduce (this is a W=1 build): # save the attached .config to linux build tree make W=1 ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): drivers/iommu/intel/iommu.c: In function 'dmar_insert_one_dev_info': >> drivers/iommu/intel/iommu.c:2557:8: error: implicit declaration of function 'pci_pri_supported'; did you mean 'pci_ats_supported'? [-Werror=implicit-function-declaration] 2557 | pci_pri_supported(pdev)) | ^~~~~~~~~~~~~~~~~ | pci_ats_supported cc1: some warnings being treated as errors vim +2557 drivers/iommu/intel/iommu.c 2504 2505 static struct dmar_domain *dmar_insert_one_dev_info(struct intel_iommu *iommu, 2506 int bus, int devfn, 2507 struct device *dev, 2508 struct dmar_domain *domain) 2509 { 2510 struct dmar_domain *found = NULL; 2511 struct device_domain_info *info; 2512 unsigned long flags; 2513 int ret; 2514 2515 info = alloc_devinfo_mem(); 2516 if (!info) 2517 return NULL; 2518 2519 if (!dev_is_real_dma_subdevice(dev)) { 2520 info->bus = bus; 2521 info->devfn = devfn; 2522 info->segment = iommu->segment; 2523 } else { 2524 struct pci_dev *pdev = to_pci_dev(dev); 2525 2526 info->bus = pdev->bus->number; 2527 info->devfn = pdev->devfn; 2528 info->segment = pci_domain_nr(pdev->bus); 2529 } 2530 2531 info->ats_supported = info->pasid_supported = info->pri_supported = 0; 2532 info->ats_enabled = info->pasid_enabled = info->pri_enabled = 0; 2533 info->ats_qdep = 0; 2534 info->dev = dev; 2535 info->domain = domain; 2536 info->iommu = iommu; 2537 info->pasid_table = NULL; 2538 info->auxd_enabled = 0; 2539 INIT_LIST_HEAD(&info->auxiliary_domains); 2540 2541 if (dev && dev_is_pci(dev)) { 2542 struct pci_dev *pdev = to_pci_dev(info->dev); 2543 2544 if (ecap_dev_iotlb_support(iommu->ecap) && 2545 pci_ats_supported(pdev) && 2546 dmar_find_matched_atsr_unit(pdev)) 2547 info->ats_supported = 1; 2548 2549 if (sm_supported(iommu)) { 2550 if (pasid_supported(iommu)) { 2551 int features = pci_pasid_features(pdev); 2552 if (features >= 0) 2553 info->pasid_supported = features | 1; 2554 } 2555 2556 if (info->ats_supported && ecap_prs(iommu->ecap) && > 2557 pci_pri_supported(pdev)) 2558 info->pri_supported = 1; 2559 } 2560 } 2561 2562 spin_lock_irqsave(&device_domain_lock, flags); 2563 if (dev) 2564 found = find_domain(dev); 2565 2566 if (!found) { 2567 struct device_domain_info *info2; 2568 info2 = dmar_search_domain_by_dev_info(info->segment, info->bus, 2569 info->devfn); 2570 if (info2) { 2571 found = info2->domain; 2572 info2->dev = dev; 2573 } 2574 } 2575 2576 if (found) { 2577 spin_unlock_irqrestore(&device_domain_lock, flags); 2578 free_devinfo_mem(info); 2579 /* Caller must free the original domain */ 2580 return found; 2581 } 2582 2583 spin_lock(&iommu->lock); 2584 ret = domain_attach_iommu(domain, iommu); 2585 spin_unlock(&iommu->lock); 2586 2587 if (ret) { 2588 spin_unlock_irqrestore(&device_domain_lock, flags); 2589 free_devinfo_mem(info); 2590 return NULL; 2591 } 2592 2593 list_add(&info->link, &domain->devices); 2594 list_add(&info->global, &device_domain_list); 2595 if (dev) 2596 dev->archdata.iommu = info; 2597 spin_unlock_irqrestore(&device_domain_lock, flags); 2598 2599 /* PASID table is mandatory for a PCI device in scalable mode. */ 2600 if (dev && dev_is_pci(dev) && sm_supported(iommu)) { 2601 ret = intel_pasid_alloc_table(dev); 2602 if (ret) { 2603 dev_err(dev, "PASID table allocation failed\n"); 2604 dmar_remove_one_dev_info(dev); 2605 return NULL; 2606 } 2607 2608 /* Setup the PASID entry for requests without PASID: */ 2609 spin_lock(&iommu->lock); 2610 if (hw_pass_through && domain_type_is_si(domain)) 2611 ret = intel_pasid_setup_pass_through(iommu, domain, 2612 dev, PASID_RID2PASID); 2613 else if (domain_use_first_level(domain)) 2614 ret = domain_setup_first_level(iommu, domain, dev, 2615 PASID_RID2PASID); 2616 else 2617 ret = intel_pasid_setup_second_level(iommu, domain, 2618 dev, PASID_RID2PASID); 2619 spin_unlock(&iommu->lock); 2620 if (ret) { 2621 dev_err(dev, "Setup RID2PASID failed\n"); 2622 dmar_remove_one_dev_info(dev); 2623 return NULL; 2624 } 2625 } 2626 2627 if (dev && domain_context_mapping(domain, dev)) { 2628 dev_err(dev, "Domain context map failed\n"); 2629 dmar_remove_one_dev_info(dev); 2630 return NULL; 2631 } 2632 2633 return domain; 2634 } 2635 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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