diff options
Diffstat (limited to 'drivers/iommu/amd/iommu.c')
| -rw-r--r-- | drivers/iommu/amd/iommu.c | 42 |
1 files changed, 0 insertions, 42 deletions
diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c index 5abf181f5ecd..8f43d89a98db 100644 --- a/drivers/iommu/amd/iommu.c +++ b/drivers/iommu/amd/iommu.c @@ -2741,48 +2741,6 @@ int amd_iommu_complete_ppr(struct pci_dev *pdev, u32 pasid, } EXPORT_SYMBOL(amd_iommu_complete_ppr); -int amd_iommu_device_info(struct pci_dev *pdev, - struct amd_iommu_device_info *info) -{ - int max_pasids; - int pos; - - if (pdev == NULL || info == NULL) - return -EINVAL; - - if (!amd_iommu_v2_supported()) - return -EINVAL; - - memset(info, 0, sizeof(*info)); - - if (pci_ats_supported(pdev)) - info->flags |= AMD_IOMMU_DEVICE_FLAG_ATS_SUP; - - pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PRI); - if (pos) - info->flags |= AMD_IOMMU_DEVICE_FLAG_PRI_SUP; - - pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PASID); - if (pos) { - int features; - - max_pasids = 1 << (9 * (amd_iommu_max_glx_val + 1)); - max_pasids = min(max_pasids, (1 << 20)); - - info->flags |= AMD_IOMMU_DEVICE_FLAG_PASID_SUP; - info->max_pasids = min(pci_max_pasids(pdev), max_pasids); - - features = pci_pasid_features(pdev); - if (features & PCI_PASID_CAP_EXEC) - info->flags |= AMD_IOMMU_DEVICE_FLAG_EXEC_SUP; - if (features & PCI_PASID_CAP_PRIV) - info->flags |= AMD_IOMMU_DEVICE_FLAG_PRIV_SUP; - } - - return 0; -} -EXPORT_SYMBOL(amd_iommu_device_info); - #ifdef CONFIG_IRQ_REMAP /***************************************************************************** |