Re: [PATCH 0/7] MIPS DMA coherence fixes

[Jiaxun Yang]

> 2023年2月21日 17:54，Christoph Hellwig <h...@lst.de> 写道：
> 
> Can you explain the motivation here?  Also why riscv patches are at
> the end of a mips fіxes series?

Ah sorry for any confusion.

So the main purpose of this patch is to fix MIPS’s broken per-device coherency.
To be more precise, we want to be able to control the default coherency for all 
devices probed from
devicetree in early boot code.

To achieve that I decided to reuse dma_default_coherent to set default 
coherency for devicetree.
And all later patches are severing for this purpose.

Thanks
- Jiaxun