Thread (22 messages) 22 messages, 5 authors, 2021-01-28

Re: [PATCH v3 5/6] media: uvcvideo: Use dma_alloc_noncontiguos API

From: ". Christoph Hellwig" <hch@lst.de>
Date: 2021-01-11 08:37:19
Also in: linux-iommu, linux-media, lkml

On Thu, Jan 07, 2021 at 03:14:08PM +0100, Ricardo Ribalda wrote:
quoted
So I think we do want these branches for coherent vs non-coherent as they
have very different semantics and I do not think that hiding them under
the same API helps people to understand those vastly different semantics.

OTOH we should look into a fallback for DMA API instances that do not
support the discontigous allocations.

I think between your comments and those from Ricardo I have a good idea
for a somewhat updated API.  I'll try to post something in the next days.
Did you have time to look into this?

No hurry, I just want to make sure that I didn't miss anything ;)
Haven't managed to get to it, sorry.
Best regards!



-- 
Ricardo Ribalda
---end quoted text---
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