forked from Minki/linux
arm64/dma-mapping: Extend DMA ops workaround to PCI devices
PCI devices now suffer the same hiccup as platform devices, in that they get their DMA ops configured before they have been added to their bus, and thus before we know whether they have successfully registered with an IOMMU or not. Until the necessary driver core changes to reorder calls during device creation have been worked out, extend our delayed notifier trick onto the PCI bus so as to avoid broken DMA ops once IOMMUs get plugged into the PCI code. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
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@ -933,6 +933,10 @@ static int __init __iommu_dma_init(void)
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ret = register_iommu_dma_ops_notifier(&platform_bus_type);
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if (!ret)
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ret = register_iommu_dma_ops_notifier(&amba_bustype);
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#ifdef CONFIG_PCI
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if (!ret)
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ret = register_iommu_dma_ops_notifier(&pci_bus_type);
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#endif
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/* handle devices queued before this arch_initcall */
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if (!ret)
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