Re: [PATCH 1/3] dmaengine: Add multi-buffer support in single DMA transfer

[Sumit Kumar]

On 3/17/2026 4:24 PM, Vinod Koul wrote:
> On 13-03-26, 12:19, Sumit Kumar wrote:
> > Add dmaengine_prep_batch_sg API for batching multiple independent buffers
> > in a single DMA transaction. Each scatter-gather entry specifies both
> > source and destination addresses. This allows multiple non-contiguous
> Looks like you want to bring back dmaengine_prep_dma_sg() see commit c678fa66341c
I was not aware about this commit, I will bring back this change (only 
the core dma part).
Along with my changes was are integrated with the above commit.
> > memory regions to be transferred in a single DMA transaction instead of
> > separate operations, significantly reducing submission overhead and
> > interrupt overhead.
> >
> > Extends struct scatterlist with optional dma_dst_address field
> > and implements support in dw-edma driver.
> If this is memcpy why are you talking about dma_dst_address which is a
> slave field?
As we are going back with the commit c678fa66341c we can ignore the 
current patch.

- Sumit