On Mon, Nov 30, 2020 at 11:45:17AM +0100, Lars-Peter Clausen wrote: > On 11/30/20 10:57 AM, Sit, Michael Wei Hong wrote: > > Is there anymore comment on this RFC? > > We will be using the ASoC framework to split the linked-list, since resplitting the linked-list in DMA is a no go. > > If there isn't any more comments, we will push these patches for review and merging. > Why is splitting the list in the DMAengine framework a no go? > > The whole idea of the DMAengine framework is to hide hardware specifics. It > offers an API with certain semantics and it is up to the driver to provide > an implementation that implements these semantics. There does not > necessarily have to be a 1-to-1 mapping to hardware primitives in such an > implementation. I would say it's not desirable. Why should we split than resplit if we may do it in one go? Why then we have DMA capabilities returned to the consumers. So, I have that we need to optimize DMA SG list preparation in a way that consumer gets SG list cooked in accordance with DMA limitations / requirements. -- With Best Regards, Andy Shevchenko
