diff options
| author | Vasant Hegde <vasant.hegde@amd.com> | 2023-09-21 09:21:46 +0000 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2023-09-25 12:39:06 +0200 |
| commit | eda8c2860ab6799620c6fbb8600d56e32f437a90 (patch) | |
| tree | 8f971c67a1bb93658218ca750b1b8e55fafe054b /drivers/iommu/amd/amd_iommu.h | |
| parent | 92e2bd56a5f9fc44313fda802a43a63cc2a9c8f6 (diff) | |
iommu/amd: Enable device ATS/PASID/PRI capabilities independently
Introduce helper functions to enable/disable device ATS/PASID/PRI
capabilities independently along with the new pasid_enabled and
pri_enabled variables in struct iommu_dev_data to keep track,
which allows attach_device() and detach_device() to be simplified.
Co-developed-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Link: https://lore.kernel.org/r/20230921092147.5930-14-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/amd/amd_iommu.h')
| -rw-r--r-- | drivers/iommu/amd/amd_iommu.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/iommu/amd/amd_iommu.h b/drivers/iommu/amd/amd_iommu.h index 5395a21215b9..9df53961d5ef 100644 --- a/drivers/iommu/amd/amd_iommu.h +++ b/drivers/iommu/amd/amd_iommu.h @@ -51,6 +51,10 @@ int amd_iommu_pc_get_reg(struct amd_iommu *iommu, u8 bank, u8 cntr, int amd_iommu_pc_set_reg(struct amd_iommu *iommu, u8 bank, u8 cntr, u8 fxn, u64 *value); +/* Device capabilities */ +int amd_iommu_pdev_enable_cap_pri(struct pci_dev *pdev); +void amd_iommu_pdev_disable_cap_pri(struct pci_dev *pdev); + int amd_iommu_register_ppr_notifier(struct notifier_block *nb); int amd_iommu_unregister_ppr_notifier(struct notifier_block *nb); void amd_iommu_domain_direct_map(struct iommu_domain *dom); |