dma_declare_coherent_memory on main memory

Rob Landley rob at landley.net
Sat Dec 8 21:25:50 UTC 2018


On 12/7/18 9:34 AM, Christoph Hellwig wrote:
> Hi all,
> 
> the ARM imx27/31 ports and various sh boards use
> dma_declare_coherent_memory on main memory taken from the memblock
> allocator.
> 
> Is there any good reason these couldn't be switched to CMA areas?
> Getting rid of these magic dma_declare_coherent_memory area would
> help making the dma allocator a lot simpler.

Not that I know of?

Rob



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