diff options
Diffstat (limited to 'drivers/iommu/amd/amd_iommu.h')
| -rw-r--r-- | drivers/iommu/amd/amd_iommu.h | 35 |
1 files changed, 22 insertions, 13 deletions
diff --git a/drivers/iommu/amd/amd_iommu.h b/drivers/iommu/amd/amd_iommu.h index e2857109e966..86be1edd50ee 100644 --- a/drivers/iommu/amd/amd_iommu.h +++ b/drivers/iommu/amd/amd_iommu.h @@ -38,9 +38,6 @@ extern int amd_iommu_guest_ir; extern enum io_pgtable_fmt amd_iommu_pgtable; extern int amd_iommu_gpt_level; -/* IOMMUv2 specific functions */ -struct iommu_domain; - bool amd_iommu_v2_supported(void); struct amd_iommu *get_amd_iommu(unsigned int idx); u8 amd_iommu_pc_get_max_banks(unsigned int idx); @@ -51,10 +48,10 @@ 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); -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); -int amd_iommu_domain_enable_v2(struct iommu_domain *dom, int pasids); +/* 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_flush_page(struct iommu_domain *dom, u32 pasid, u64 address); void amd_iommu_update_and_flush_device_table(struct protection_domain *domain); void amd_iommu_domain_update(struct protection_domain *domain); @@ -87,9 +84,25 @@ static inline bool is_rd890_iommu(struct pci_dev *pdev) (pdev->device == PCI_DEVICE_ID_RD890_IOMMU); } -static inline bool iommu_feature(struct amd_iommu *iommu, u64 mask) +static inline bool check_feature(u64 mask) +{ + return (amd_iommu_efr & mask); +} + +static inline bool check_feature2(u64 mask) +{ + return (amd_iommu_efr2 & mask); +} + +static inline int check_feature_gpt_level(void) +{ + return ((amd_iommu_efr >> FEATURE_GATS_SHIFT) & FEATURE_GATS_MASK); +} + +static inline bool amd_iommu_gt_ppr_supported(void) { - return !!(iommu->features & mask); + return (check_feature(FEATURE_GT) && + check_feature(FEATURE_PPR)); } static inline u64 iommu_virt_to_phys(void *vaddr) @@ -105,7 +118,6 @@ static inline void *iommu_phys_to_virt(unsigned long paddr) static inline void amd_iommu_domain_set_pt_root(struct protection_domain *domain, u64 root) { - atomic64_set(&domain->iop.pt_root, root); domain->iop.root = (u64 *)(root & PAGE_MASK); domain->iop.mode = root & 7; /* lowest 3 bits encode pgtable mode */ } @@ -146,8 +158,5 @@ void amd_iommu_domain_set_pgtable(struct protection_domain *domain, u64 *root, int mode); struct dev_table_entry *get_dev_table(struct amd_iommu *iommu); -extern u64 amd_iommu_efr; -extern u64 amd_iommu_efr2; - extern bool amd_iommu_snp_en; #endif |