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powerpc: Add iommu domain pointer to device archdata

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Add an iommu domain pointer to device (powerpc) archdata.  Devices
are attached to iommu domains and this pointer provides a mechanism
to correlate between a device and the associated iommu domain.  This
field is set when a device is attached to a domain.

Signed-off-by: Varun Sethi <Varun.Sethi@freescale.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
This commit is contained in:
Varun Sethi 2013-07-15 10:20:55 +05:30 committed by Joerg Roedel
parent d4e4ab86bc
commit bb9175051a
1 changed files with 3 additions and 0 deletions
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3
arch/powerpc/include/asm/device.h
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@ -28,6 +28,9 @@ struct dev_archdata {
void *iommu_table_base;
} dma_data;
#ifdef CONFIG_IOMMU_API
void *iommu_domain;
#endif
#ifdef CONFIG_SWIOTLB
dma_addr_t max_direct_dma_addr;
#endif