diff options
Diffstat (limited to 'arch/arm/include')
| -rw-r--r-- | arch/arm/include/asm/device.h | 6 | ||||
| -rw-r--r-- | arch/arm/include/asm/dma-iommu.h | 2 |
2 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm/include/asm/device.h b/arch/arm/include/asm/device.h index b69c0d3285f8..dc662fca9230 100644 --- a/arch/arm/include/asm/device.h +++ b/arch/arm/include/asm/device.h @@ -27,4 +27,10 @@ struct pdev_archdata { #endif }; +#ifdef CONFIG_ARM_DMA_USE_IOMMU +#define to_dma_iommu_mapping(dev) ((dev)->archdata.mapping) +#else +#define to_dma_iommu_mapping(dev) NULL +#endif + #endif diff --git a/arch/arm/include/asm/dma-iommu.h b/arch/arm/include/asm/dma-iommu.h index 799b09409fad..a8c56acc8c98 100644 --- a/arch/arm/include/asm/dma-iommu.h +++ b/arch/arm/include/asm/dma-iommu.h @@ -7,6 +7,7 @@ #include <linux/scatterlist.h> #include <linux/dma-debug.h> #include <linux/kmemcheck.h> +#include <linux/kref.h> struct dma_iommu_mapping { /* iommu specific data */ @@ -29,6 +30,7 @@ void arm_iommu_release_mapping(struct dma_iommu_mapping *mapping); int arm_iommu_attach_device(struct device *dev, struct dma_iommu_mapping *mapping); +void arm_iommu_detach_device(struct device *dev); #endif /* __KERNEL__ */ #endif |