* @map: map a physically contiguous memory region to an iommu domain
* @unmap: unmap a physically contiguous memory region from an iommu domain
* @map_sg: map a scatter-gather list of physically contiguous memory chunks
+ * @flush_tlb_all: Synchronously flush all hardware TLBs for this domain
+ * @tlb_range_add: Add a given iova range to the flush queue for this domain
+ * @tlb_sync: Flush all queued ranges from the hardware TLBs and empty flush
+ * queue
* to an iommu domain
* @iova_to_phys: translate iova to physical address
* @add_device: add device to iommu grouping
size_t size);
size_t (*map_sg)(struct iommu_domain *domain, unsigned long iova,
struct scatterlist *sg, unsigned int nents, int prot);
+ void (*flush_iotlb_all)(struct iommu_domain *domain);
+ void (*iotlb_range_add)(struct iommu_domain *domain,
+ unsigned long iova, size_t size);
+ void (*iotlb_sync)(struct iommu_domain *domain);
phys_addr_t (*iova_to_phys)(struct iommu_domain *domain, dma_addr_t iova);
int (*add_device)(struct device *dev);
void (*remove_device)(struct device *dev);
u32 (*domain_get_windows)(struct iommu_domain *domain);
int (*of_xlate)(struct device *dev, struct of_phandle_args *args);
+ bool (*is_attach_deferred)(struct iommu_domain *domain, struct device *dev);
unsigned long pgsize_bitmap;
};
struct list_head list;
const struct iommu_ops *ops;
struct fwnode_handle *fwnode;
- struct device dev;
+ struct device *dev;
};
int iommu_device_register(struct iommu_device *iommu);
iommu->fwnode = fwnode;
}
+static inline struct iommu_device *dev_to_iommu_device(struct device *dev)
+{
+ return (struct iommu_device *)dev_get_drvdata(dev);
+}
+
#define IOMMU_GROUP_NOTIFY_ADD_DEVICE 1 /* Device added */
#define IOMMU_GROUP_NOTIFY_DEL_DEVICE 2 /* Pre Device removed */
#define IOMMU_GROUP_NOTIFY_BIND_DRIVER 3 /* Pre Driver bind */
extern int iommu_map(struct iommu_domain *domain, unsigned long iova,
phys_addr_t paddr, size_t size, int prot);
extern size_t iommu_unmap(struct iommu_domain *domain, unsigned long iova,
- size_t size);
+ size_t size);
+extern size_t iommu_unmap_fast(struct iommu_domain *domain,
+ unsigned long iova, size_t size);
extern size_t default_iommu_map_sg(struct iommu_domain *domain, unsigned long iova,
struct scatterlist *sg,unsigned int nents,
int prot);
extern int report_iommu_fault(struct iommu_domain *domain, struct device *dev,
unsigned long iova, int flags);
+static inline void iommu_flush_tlb_all(struct iommu_domain *domain)
+{
+ if (domain->ops->flush_iotlb_all)
+ domain->ops->flush_iotlb_all(domain);
+}
+
+static inline void iommu_tlb_range_add(struct iommu_domain *domain,
+ unsigned long iova, size_t size)
+{
+ if (domain->ops->iotlb_range_add)
+ domain->ops->iotlb_range_add(domain, iova, size);
+}
+
+static inline void iommu_tlb_sync(struct iommu_domain *domain)
+{
+ if (domain->ops->iotlb_sync)
+ domain->ops->iotlb_sync(domain);
+}
+
static inline size_t iommu_map_sg(struct iommu_domain *domain,
unsigned long iova, struct scatterlist *sg,
unsigned int nents, int prot)
return -ENODEV;
}
+static inline int iommu_unmap_fast(struct iommu_domain *domain, unsigned long iova,
+ int gfp_order)
+{
+ return -ENODEV;
+}
+
static inline size_t iommu_map_sg(struct iommu_domain *domain,
unsigned long iova, struct scatterlist *sg,
unsigned int nents, int prot)
return -ENODEV;
}
+static inline void iommu_flush_tlb_all(struct iommu_domain *domain)
+{
+}
+
+static inline void iommu_tlb_range_add(struct iommu_domain *domain,
+ unsigned long iova, size_t size)
+{
+}
+
+static inline void iommu_tlb_sync(struct iommu_domain *domain)
+{
+}
+
static inline int iommu_domain_window_enable(struct iommu_domain *domain,
u32 wnd_nr, phys_addr_t paddr,
u64 size, int prot)
{
}
+static inline struct iommu_device *dev_to_iommu_device(struct device *dev)
+{
+ return NULL;
+}
+
static inline void iommu_device_unregister(struct iommu_device *iommu)
{
}