Re: [PATCH] x86: enable DMA CMA with swiotlb

[Andi Kleen]

"H. Peter Anvin" <hpa@xxxxxxxxx> writes:
>
> If you have a real iotlb, why would you need contiguous memory?

iotlb is often slow.

Another use case is allocating 1GB pages at runtime.

-Andi
-- 
ak@xxxxxxxxxxxxxxx -- Speaking for myself only
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