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dma-mapping: support non-coherent devices in dma_common_get_sgtable

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We can use the arch_dma_coherent_to_pfn hook to provide a ->get_sgtable
implementation.  Note that this isn't an endorsement of this interface
(which is a horrible bad idea), but it is required to move arm64 over
to the generic code without a loss of functionality.

Signed-off-by: Christoph Hellwig <[email protected]>
This commit is contained in:
Christoph Hellwig 2018-08-23 09:39:38 +02:00
commit 9406a49fd1
3 changed files with 21 additions and 11 deletions
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2
drivers/xen/swiotlb-xen.c
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@ -689,7 +689,7 @@ xen_swiotlb_get_sgtable(struct device *dev, struct sg_table *sgt,
handle, size, attrs);
}
#endif
return dma_common_get_sgtable(dev, sgt, cpu_addr, handle, size);
return dma_common_get_sgtable(dev, sgt, cpu_addr, handle, size, attrs);
}
static int xen_swiotlb_mapping_error(struct device *dev, dma_addr_t dma_addr)