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SubjectRe: [PATCH] x86-64: disable the GART in shutdown

> I'm going to need exactly the same hook fro Calgary, as well Intel for
> VT-d, and AMD for their upcoming IOMMU, etc. How about we do
> struct iommu_ops {
> struct dma_ops {
> ...
> }
> void (*shutdown)(void);
> }
> And then pci_iommu_shutdown() becomes
> if (iommu_ops->shutdown)
> iommu_ops->shutdown();

I think it's cleaner if everybody registers their own shutdown handler in sysfs
Don't see any value in going through a generic layer because there is no
shared code.


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