Commit 226d89cb authored by Robin Murphy's avatar Robin Murphy Committed by Will Deacon
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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: default avatarCatalin Marinas <>
Signed-off-by: default avatarRobin Murphy <>
Signed-off-by: default avatarWill Deacon <>
parent 643d703d
......@@ -933,6 +933,10 @@ static int __init __iommu_dma_init(void)
ret = register_iommu_dma_ops_notifier(&platform_bus_type);
if (!ret)
ret = register_iommu_dma_ops_notifier(&amba_bustype);
if (!ret)
ret = register_iommu_dma_ops_notifier(&pci_bus_type);
/* handle devices queued before this arch_initcall */
if (!ret)
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