sparc64/pci_sun4v: allow large DMA masks
We've been moving to a model where the device just sets the DMA mask supported by it, instead of having to fallback to something it thinks the platform might support. Sparc64 is the remaining holdout forcing drivers to supply a matching mask. Change dma_4v_supported to just check if the supplied dma mask is large enough. and adjust the mapping code to check ATU presence in addition to the DMA mask to decide on the mapping method. Signed-off-by:Christoph Hellwig <hch@lst.de> Acked-by:
David S. Miller <davem@davemloft.net>
parent
254ecb16
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