Re: [PATCH 4/6] MIPS: Loongson: Add DMA support for 7A1000

[Tiezhu Yang]

On 03/13/2020 04:24 PM, Christoph Hellwig wrote:
> On Mon, Mar 09, 2020 at 04:23:24PM +0800, Tiezhu Yang wrote:
> > Implement __phys_to_dma() and __dma_to_phys() according to the
> > node id offset in 7A1000 DMA route config register.
> Can you just switch Loongson over to use the dma_pfn_offset field in
> struct device?  I'd love to kill the __phys_to_dma and __dma_to_phys
> hooks wherever possible.

Hi Christoph,

Thanks for your suggestion, I will refactor the code.

Thanks,

Tiezhu Yang