diff options
Diffstat (limited to 'include/linux/dma-iommu.h')
| -rw-r--r-- | include/linux/dma-iommu.h | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/include/linux/dma-iommu.h b/include/linux/dma-iommu.h index 81c5c8d167ad..7f7e9a7e3839 100644 --- a/include/linux/dma-iommu.h +++ b/include/linux/dma-iommu.h @@ -21,6 +21,7 @@ #ifdef CONFIG_IOMMU_DMA #include <linux/iommu.h> +#include <linux/msi.h> int iommu_dma_init(void); @@ -29,7 +30,8 @@ int iommu_get_dma_cookie(struct iommu_domain *domain); void iommu_put_dma_cookie(struct iommu_domain *domain); /* Setup call for arch DMA mapping code */ -int iommu_dma_init_domain(struct iommu_domain *domain, dma_addr_t base, u64 size); +int iommu_dma_init_domain(struct iommu_domain *domain, dma_addr_t base, + u64 size, struct device *dev); /* General helpers for DMA-API <-> IOMMU-API interaction */ int dma_direction_to_prot(enum dma_data_direction dir, bool coherent); @@ -59,12 +61,20 @@ void iommu_dma_unmap_page(struct device *dev, dma_addr_t handle, size_t size, enum dma_data_direction dir, unsigned long attrs); void iommu_dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nents, enum dma_data_direction dir, unsigned long attrs); +dma_addr_t iommu_dma_map_resource(struct device *dev, phys_addr_t phys, + size_t size, enum dma_data_direction dir, unsigned long attrs); +void iommu_dma_unmap_resource(struct device *dev, dma_addr_t handle, + size_t size, enum dma_data_direction dir, unsigned long attrs); int iommu_dma_supported(struct device *dev, u64 mask); int iommu_dma_mapping_error(struct device *dev, dma_addr_t dma_addr); +/* The DMA API isn't _quite_ the whole story, though... */ +void iommu_dma_map_msi_msg(int irq, struct msi_msg *msg); + #else struct iommu_domain; +struct msi_msg; static inline int iommu_dma_init(void) { @@ -80,6 +90,10 @@ static inline void iommu_put_dma_cookie(struct iommu_domain *domain) { } +static inline void iommu_dma_map_msi_msg(int irq, struct msi_msg *msg) +{ +} + #endif /* CONFIG_IOMMU_DMA */ #endif /* __KERNEL__ */ #endif /* __DMA_IOMMU_H */ |