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iommu/amd: Remove dev_data->passthrough

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Make use of generic IOMMU infrastructure to gather the same information
carried in dev_data->passthrough and remove the struct member.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
Link: https://lore.kernel.org/r/20200429133712.31431-15-joro@8bytes.org
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Joerg Roedel 2020-04-29 15:36:52 +02:00
parent 5012c39685
commit 57f9842e48
2 changed files with 5 additions and 6 deletions
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10
drivers/iommu/amd_iommu.c
View file

@ -2047,8 +2047,8 @@ static int pdev_iommuv2_enable(struct pci_dev *pdev)
static int attach_device(struct device *dev,
struct protection_domain *domain)
{
struct pci_dev *pdev;
struct iommu_dev_data *dev_data;
struct pci_dev *pdev;
unsigned long flags;
int ret;
@ -2067,8 +2067,10 @@ static int attach_device(struct device *dev,
pdev = to_pci_dev(dev);
if (domain->flags & PD_IOMMUV2_MASK) {
struct iommu_domain *def_domain = iommu_get_dma_domain(dev);
ret = -EINVAL;
if (!dev_data->passthrough)
if (def_domain->type != IOMMU_DOMAIN_IDENTITY)
goto out;
if (dev_data->iommu_v2) {
@ -2189,9 +2191,7 @@ static int amd_iommu_add_device(struct device *dev)
/* Domains are initialized for this device - have a look what we ended up with */
domain = iommu_get_domain_for_dev(dev);
if (domain->type == IOMMU_DOMAIN_IDENTITY)
dev_data->passthrough = true;
else if (domain->type == IOMMU_DOMAIN_DMA)
if (domain->type == IOMMU_DOMAIN_DMA)
iommu_setup_dma_ops(dev, IOVA_START_PFN << PAGE_SHIFT, 0);
out:

1
drivers/iommu/amd_iommu_types.h
View file

@ -640,7 +640,6 @@ struct iommu_dev_data {
struct pci_dev *pdev;
u16 devid; /* PCI Device ID */
bool iommu_v2; /* Device can make use of IOMMUv2 */
bool passthrough; /* Device is identity mapped */
struct {
bool enabled;
int qdep;