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SubjectRe: [PATCH] x86: enable DMA CMA with swiotlb
Date
"H. Peter Anvin" <hpa@zytor.com> 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@linux.intel.com -- Speaking for myself only


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