diff options
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/iommu/amd_iommu.c | 11 | ||||
| -rw-r--r-- | drivers/iommu/intel-iommu.c | 3 |
3 files changed, 11 insertions, 4 deletions
diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig index c76157e57f6b..8ea77efb2e29 100644 --- a/drivers/iommu/Kconfig +++ b/drivers/iommu/Kconfig @@ -146,6 +146,7 @@ config INTEL_IOMMU select DMA_DIRECT_OPS select IOMMU_API select IOMMU_IOVA + select NEED_DMA_MAP_STATE select DMAR_TABLE help DMA remapping (DMAR) devices support enables independent address diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index 8cb28def43e3..1912e9106fbe 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -354,6 +354,9 @@ static bool pci_iommuv2_capable(struct pci_dev *pdev) }; int i, pos; + if (pci_ats_disabled()) + return false; + for (i = 0; i < 3; ++i) { pos = pci_find_ext_capability(pdev, caps[i]); if (pos == 0) @@ -3524,9 +3527,11 @@ int amd_iommu_device_info(struct pci_dev *pdev, memset(info, 0, sizeof(*info)); - pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_ATS); - if (pos) - info->flags |= AMD_IOMMU_DEVICE_FLAG_ATS_SUP; + if (!pci_ats_disabled()) { + pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_ATS); + if (pos) + info->flags |= AMD_IOMMU_DEVICE_FLAG_ATS_SUP; + } pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PRI); if (pos) diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index d79e3ebbe437..89e49a429c57 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -2472,7 +2472,8 @@ static struct dmar_domain *dmar_insert_one_dev_info(struct intel_iommu *iommu, if (dev && dev_is_pci(dev)) { struct pci_dev *pdev = to_pci_dev(info->dev); - if (ecap_dev_iotlb_support(iommu->ecap) && + if (!pci_ats_disabled() && + ecap_dev_iotlb_support(iommu->ecap) && pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_ATS) && dmar_find_matched_atsr_unit(pdev)) info->ats_supported = 1; |
