1 /* Public domain. */ 2 3 #ifndef _LINUXKPI_LINUX_IOMMU_H_ 4 #define _LINUXKPI_LINUX_IOMMU_H_ 5 6 #include <linux/device.h> 7 8 #define __IOMMU_DOMAIN_PAGING (1U << 0) 9 #define __IOMMU_DOMAIN_DMA_API (1U << 1) 10 #define __IOMMU_DOMAIN_PT (1U << 2) 11 #define __IOMMU_DOMAIN_DMA_FQ (1U << 3) 12 13 #define IOMMU_DOMAIN_BLOCKED (0U) 14 #define IOMMU_DOMAIN_IDENTITY (__IOMMU_DOMAIN_PT) 15 #define IOMMU_DOMAIN_UNMANAGED (__IOMMU_DOMAIN_PAGING) 16 #define IOMMU_DOMAIN_DMA (__IOMMU_DOMAIN_PAGING | __IOMMU_DOMAIN_DMA_API) 17 #define IOMMU_DOMAIN_DMA_FQ (__IOMMU_DOMAIN_PAGING | __IOMMU_DOMAIN_DMA_API | __IOMMU_DOMAIN_DMA_FQ) 18 19 struct iommu_domain { 20 unsigned int type; 21 }; 22 23 static inline struct iommu_domain * 24 iommu_get_domain_for_dev(struct device *dev __unused) 25 { 26 return (NULL); 27 } 28 29 #endif /* _LINUXKPI_LINUX_IOMMU_H_ */ 30