On Tue, 2019-07-09 at 07:20 -0700, Christoph Hellwig wrote:
> The DMA API requires that 32-bit DMA masks are always supported, but on
> arm LPAE configs they do not currently work when memory is present
> above 4GB. Wire up the swiotlb code like for all other architectures
> to provide the bounce buffering in that case.
>
> Fixes: 21e07dba9fb11 ("scsi: reduce use of block bounce buffers").
> Reported-by: Roger Quadros <[email protected]>
> Signed-off-by: Christoph Hellwig <[email protected]>
> ---Hi Chistoph, Out of curiosity, what is the reason stopping us from using dma-direct/swiotlb instead of arm_dma_ops altogether? Regards, Nicolas
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