Re: [PATCH 6/6] atmel_serial: Add DMA support

[Alan Cox]

> No, I think GFP_DMA is for legacy ISA DMA and other DMA controllers
> with addressing limitations. The PDC is capable of accessing the full
> 32-bit physical address space on both AT91 and AVR32, so no special DMA
> flags are needed.

For kernel coherent DMA buffers use the dma_ API to allocate the memory.

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