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Commit 688cb30b authored by David S. Miller's avatar David S. Miller
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[SPARC64]: Eliminate PCI IOMMU dma mapping size limit.



The hairy fast allocator in the sparc64 PCI IOMMU code
has a hard limit of 256 pages.  Certain devices can
exceed this when performing very large I/Os.

So replace with a more simple allocator, based largely
upon the arch/ppc64/kernel/iommu.c code.

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 51e85136
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