This change allows ATU (new IOMMU) in SPARC systems to request
large (32M) contiguous memory during boot for creating IOTSB backing
store.
Signed-off-by: NDave Kleikamp <dave.kleikamp@oracle.com>
Signed-off-by: NTushar Dave <tushar.n.dave@oracle.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>