Re: PCI-DMA: Out of IOMMU space on x86-64 (Athlon64x2), with solution

[Andi Kleen]

On Thursday 02 March 2006 13:30, Jens Axboe wrote:

> I'd much rather prefer punting and letting the upper layer decide how to
> handle it. Who knows, it may have to do something active like kicking
> pending io in action at the controller level.

But how would you wait for new space to be available then?

You need at least a wait queue from the IOMMU code to hook into I suspect.

-Andi
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