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[POWERPC] cleanup dma_mapping_ops

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For pseries IOMMU bypass I want to be able to fall back to the regular
IOMMU ops. Do this by creating a dma_mapping_ops struct, and convert
the others while at it.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Anton Blanchard
2006-06-10 23:04:39 +10:00
committed by Paul Mackerras
parent ca1588e71b
commit df310656c7
3 changed files with 33 additions and 21 deletions
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18
arch/powerpc/kernel/pci_iommu.c
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@@ -148,13 +148,17 @@ static int pci_iommu_dma_supported(struct device *dev, u64 mask)
return 1;
}
struct dma_mapping_ops pci_iommu_ops = {
.alloc_coherent = pci_iommu_alloc_coherent,
.free_coherent = pci_iommu_free_coherent,
.map_single = pci_iommu_map_single,
.unmap_single = pci_iommu_unmap_single,
.map_sg = pci_iommu_map_sg,
.unmap_sg = pci_iommu_unmap_sg,
.dma_supported = pci_iommu_dma_supported,
};
void pci_iommu_init(void)
{
pci_dma_ops.alloc_coherent = pci_iommu_alloc_coherent;
pci_dma_ops.free_coherent = pci_iommu_free_coherent;
pci_dma_ops.map_single = pci_iommu_map_single;
pci_dma_ops.unmap_single = pci_iommu_unmap_single;
pci_dma_ops.map_sg = pci_iommu_map_sg;
pci_dma_ops.unmap_sg = pci_iommu_unmap_sg;
pci_dma_ops.dma_supported = pci_iommu_dma_supported;
pci_dma_ops = pci_iommu_ops;
}