diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/iommu/iommu-uclass.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/iommu/iommu-uclass.c b/drivers/iommu/iommu-uclass.c index ed917b3c3e8..f6b14577362 100644 --- a/drivers/iommu/iommu-uclass.c +++ b/drivers/iommu/iommu-uclass.c @@ -7,6 +7,9 @@ #include <common.h> #include <dm.h> +#include <iommu.h> +#include <phys2bus.h> +#include <asm/io.h> #if (CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)) int dev_iommu_enable(struct udevice *dev) @@ -33,12 +36,37 @@ int dev_iommu_enable(struct udevice *dev) __func__, ret); return ret; } + dev->iommu = dev_iommu; } return 0; } #endif +dma_addr_t dev_iommu_dma_map(struct udevice *dev, void *addr, size_t size) +{ + const struct iommu_ops *ops; + + if (dev->iommu) { + ops = device_get_ops(dev->iommu); + if (ops && ops->map) + return ops->map(dev->iommu, addr, size); + } + + return dev_phys_to_bus(dev, virt_to_phys(addr)); +} + +void dev_iommu_dma_unmap(struct udevice *dev, dma_addr_t addr, size_t size) +{ + const struct iommu_ops *ops; + + if (dev->iommu) { + ops = device_get_ops(dev->iommu); + if (ops && ops->unmap) + ops->unmap(dev->iommu, addr, size); + } +} + UCLASS_DRIVER(iommu) = { .id = UCLASS_IOMMU, .name = "iommu", |