linux-4.4.1/iommu_ops の履歴(No.1)

履歴一覧
差分を表示
現在との差分を表示
ソースを表示
linux-4.4.1/iommu_ops へ行く。
- 1 (2017-11-28 (火) 10:41:01)

参照元†

↑

説明†

パス: linux-4.4.1/include/linux/iommu.h

FIXME: これは何？
- 説明

↑

参考†

↑

実装†

/**
 * struct iommu_ops - iommu ops and capabilities
 * @domain_init: init iommu domain
 * @domain_destroy: destroy iommu domain
 * @attach_dev: attach device to an iommu domain
 * @detach_dev: detach device from an iommu domain
 * @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
 * to an iommu domain
 * @iova_to_phys: translate iova to physical address
 * @add_device: add device to iommu grouping
 * @remove_device: remove device from iommu grouping
 * @domain_get_attr: Query domain attributes
 * @domain_set_attr: Change domain attributes
 * @of_xlate: add OF master IDs to iommu grouping
 * @pgsize_bitmap: bitmap of supported page sizes
 * @priv: per-instance data private to the iommu driver
 */
struct iommu_ops {
	bool (*capable)(enum iommu_cap);

- linux-4.4.1/iommu_cap

	/* Domain allocation and freeing by the iommu driver */
	struct iommu_domain *(*domain_alloc)(unsigned iommu_domain_type);
	void (*domain_free)(struct iommu_domain *);

- linux-4.4.1/iommu_domain

	int (*attach_dev)(struct iommu_domain *domain, struct device *dev);
	void (*detach_dev)(struct iommu_domain *domain, struct device *dev);

- linux-4.4.1/device

	int (*map)(struct iommu_domain *domain, unsigned long iova,
		   phys_addr_t paddr, size_t size, int prot);
	size_t (*unmap)(struct iommu_domain *domain, unsigned long iova,
		     size_t size);
	size_t (*map_sg)(struct iommu_domain *domain, unsigned long iova,
			 struct scatterlist *sg, unsigned int nents, int prot);

- linux-4.4.1/phys_addr_t
- linux-4.4.1/scatterlist

	phys_addr_t (*iova_to_phys)(struct iommu_domain *domain, dma_addr_t iova);

- linux-4.4.1/dma_addr_t

	int (*add_device)(struct device *dev);
	void (*remove_device)(struct device *dev);
	struct iommu_group *(*device_group)(struct device *dev);

- linux-4.4.1/iommu_group

	int (*domain_get_attr)(struct iommu_domain *domain,
			       enum iommu_attr attr, void *data);
	int (*domain_set_attr)(struct iommu_domain *domain,
			       enum iommu_attr attr, void *data);

- linux-4.4.1/iommu_attr

	/* Request/Free a list of direct mapping requirements for a device */
	void (*get_dm_regions)(struct device *dev, struct list_head *list);
	void (*put_dm_regions)(struct device *dev, struct list_head *list);

- linux-4.4.1/list_head

	/* Window handling functions */
	int (*domain_window_enable)(struct iommu_domain *domain, u32 wnd_nr,
				    phys_addr_t paddr, u64 size, int prot);
	void (*domain_window_disable)(struct iommu_domain *domain, u32 wnd_nr);
	/* Set the numer of window per domain */
	int (*domain_set_windows)(struct iommu_domain *domain, u32 w_count);
	/* Get the numer of window per domain */
	u32 (*domain_get_windows)(struct iommu_domain *domain);

#ifdef CONFIG_OF_IOMMU

- linux-4.4.1/CONFIG_OF_IOMMU

	int (*of_xlate)(struct device *dev, struct of_phandle_args *args);

- linux-4.4.1/of_phandle_args

#endif

	unsigned long pgsize_bitmap;
	void *priv;
};

↑

linux-4.4.1/iommu_ops の履歴(No.1)

参照元†

説明†

参考†

実装†

コメント†