diff options
Diffstat (limited to 'include/linux/iommu.h')
| -rw-r--r-- | include/linux/iommu.h | 43 |
1 files changed, 42 insertions, 1 deletions
diff --git a/include/linux/iommu.h b/include/linux/iommu.h index 436dc21318af..a4510152f5b5 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -31,6 +31,11 @@ #define IOMMU_CACHE (1 << 2) /* DMA cache coherency */ #define IOMMU_NOEXEC (1 << 3) #define IOMMU_MMIO (1 << 4) /* e.g. things like MSI doorbells */ +#ifdef CONFIG_HISI_IOMMU +#define IOMMU_DEVICE (1 << 4) +#define IOMMU_SEC (1 << 5) +#define IOMMU_EXEC (1 << 6) +#endif struct iommu_ops; struct iommu_group; @@ -84,6 +89,7 @@ struct iommu_domain { void *handler_token; struct iommu_domain_geometry geometry; void *iova_cookie; + void *priv; }; enum iommu_cap { @@ -117,6 +123,26 @@ enum iommu_attr { DOMAIN_ATTR_MAX, }; +/* metadata for iommu mapping */ +struct iommu_map_format { + unsigned long iova_start; + unsigned long iova_size; + unsigned long iommu_ptb_base; + unsigned long iommu_iova_base; + unsigned long header_size; + unsigned long phys_page_line; + unsigned long virt_page_line; + unsigned long is_tile; + unsigned long prot; +}; + +struct tile_format { + unsigned long header_size; + unsigned long is_tile; + unsigned long phys_page_line; + unsigned long virt_page_line; +}; + /** * struct iommu_dm_region - descriptor for a direct mapped memory region * @list: Linked list pointers @@ -201,6 +227,14 @@ struct iommu_ops { int (*of_xlate)(struct device *dev, struct of_phandle_args *args); +#ifdef CONFIG_HISI_IOMMU + int (*map_tile)(struct iommu_domain *domain, unsigned long iova, + struct scatterlist *sg, size_t size, int prot, + struct tile_format *format); + size_t (*unmap_tile)(struct iommu_domain *domain, unsigned long iova, + size_t size); +#endif + unsigned long pgsize_bitmap; }; @@ -272,7 +306,14 @@ struct device *iommu_device_create(struct device *parent, void *drvdata, void iommu_device_destroy(struct device *dev); int iommu_device_link(struct device *dev, struct device *link); void iommu_device_unlink(struct device *dev, struct device *link); - +#ifdef CONFIG_HISI_IOMMU +int iommu_map_tile(struct iommu_domain *domain, unsigned long iova, + struct scatterlist *sg, size_t size, int prot, + struct tile_format *format); + +int iommu_unmap_tile(struct iommu_domain *domain, unsigned long iova, + size_t size); +#endif /* Window handling function prototypes */ extern int iommu_domain_window_enable(struct iommu_domain *domain, u32 wnd_nr, phys_addr_t offset, u64 size, |