powerpc/powernv: Build DMA space for PE on PHB3
The patch intends to build 32-bits DMA space for individual PEs on PHB3. The TVE# is recognized by the combo of PE# and fixed bits from DMA address, which is zero for 32-bits DMA space. Signed-off-by: NGavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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