diff options
Diffstat (limited to 'drivers/iommu/amd_iommu_proto.h')
| -rw-r--r-- | drivers/iommu/amd_iommu_proto.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/iommu/amd_iommu_proto.h b/drivers/iommu/amd_iommu_proto.h index 7ffaa64410b0..1a7f41c6cc66 100644 --- a/drivers/iommu/amd_iommu_proto.h +++ b/drivers/iommu/amd_iommu_proto.h @@ -31,6 +31,30 @@ extern int amd_iommu_init_devices(void); extern void amd_iommu_uninit_devices(void); extern void amd_iommu_init_notifier(void); extern void amd_iommu_init_api(void); + +/* IOMMUv2 specific functions */ +struct iommu_domain; + +extern bool amd_iommu_v2_supported(void); +extern int amd_iommu_register_ppr_notifier(struct notifier_block *nb); +extern int amd_iommu_unregister_ppr_notifier(struct notifier_block *nb); +extern void amd_iommu_domain_direct_map(struct iommu_domain *dom); +extern int amd_iommu_domain_enable_v2(struct iommu_domain *dom, int pasids); +extern int amd_iommu_flush_page(struct iommu_domain *dom, int pasid, + u64 address); +extern int amd_iommu_flush_tlb(struct iommu_domain *dom, int pasid); +extern int amd_iommu_domain_set_gcr3(struct iommu_domain *dom, int pasid, + unsigned long cr3); +extern int amd_iommu_domain_clear_gcr3(struct iommu_domain *dom, int pasid); +extern struct iommu_domain *amd_iommu_get_v2_domain(struct pci_dev *pdev); + +#define PPR_SUCCESS 0x0 +#define PPR_INVALID 0x1 +#define PPR_FAILURE 0xf + +extern int amd_iommu_complete_ppr(struct pci_dev *pdev, int pasid, + int status, int tag); + #ifndef CONFIG_AMD_IOMMU_STATS static inline void amd_iommu_stats_init(void) { } |