Subject: Re: Phyr Starter

From: Christoph Hellwig <[email-masked]>
Date: Thu, 20 Jan 2022 16:28:58 +0100

On Thu, Jan 20, 2022 at 07:27:36AM -0800, Keith Busch wrote:
> It doesn't look like IOMMU page sizes are exported, or even necessarily
> consistently sized on at least one arch (power).

At the DMA API layer dma_get_merge_boundary is the API for it.