Messages in this thread | | | Subject | Re: [PATCH v6] MIPS: Loongson: Add DMA support for LS7A | From | Tiezhu Yang <> | Date | Thu, 7 May 2020 18:23:00 +0800 |
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On 05/07/2020 09:41 AM, Huacai Chen wrote: > Hi, Christoph, > > On Wed, May 6, 2020 at 10:44 PM Christoph Hellwig <hch@infradead.org> wrote: >> On Wed, May 06, 2020 at 04:47:30PM +0800, Huacai Chen wrote: >>>> For the above reasons, I think what you are concerned is not a >>>> big deal. >>> I don't think so, this is obviously a regression. If we can accept a >>> regression of RS780E, why we still maintain Loongson-2EF rather than >>> simply drop them? >> While I much prefer to use the default, regression an otherwise >> working platform seems like a bad idea. I don't really know much >> about the Loongson platforms, do they all boot using the same kernel >> image? > All Loongson-3 machines (with LS7A bridge or RS780 bridge) use the > same kernel image.
Hi Christoph, Huacai and Jiaxun,
Thank you very much for your reviews and discussions.
If you agree to use the platform dependent implementation of __phys_to_dma() and __dma_to_phys(), I will make a slight modification based on the v4 patch [1] to put ls7a things before rs780e things, and then send v7 as soon as possible.
If anyone has any objections, please let me know.
[1] https://lore.kernel.org/patchwork/patch/1220010/
Thanks, Tiezhu Yang
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