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arm64: device: add iommu pointer to device archdata

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When using an IOMMU for device mappings, it is necessary to keep a
pointer between the device and the IOMMU to which it is attached in
order to obtain the correct IOMMU when attaching the device to a domain.

This patch adds an iommu pointer to the dev_archdata structure, in a
similar manner to other architectures (ARM, PowerPC, x86, ...).

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Will Deacon
2013-06-10 19:34:42 +01:00
committed by Catalin Marinas
parent 9ab6d02fdd
commit 73150c983a
1 changed files with 3 additions and 0 deletions
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3
arch/arm64/include/asm/device.h
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@@ -18,6 +18,9 @@
struct dev_archdata { struct dev_archdata {
struct dma_map_ops *dma_ops; struct dma_map_ops *dma_ops;
#ifdef CONFIG_IOMMU_API
void *iommu; /* private IOMMU data */
#endif
}; };
struct pdev_archdata { struct pdev_archdata {