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powerpc/powernv: Check PHB type in advance
authorGavin Shan <gwshan@linux.vnet.ibm.com>
Wed, 12 Nov 2014 02:36:04 +0000 (13:36 +1100)
committerMichael Ellerman <mpe@ellerman.id.au>
Fri, 14 Nov 2014 06:24:22 +0000 (17:24 +1100)
The patch checks PHB type a bit early to save a bit cycles
for P7 because we don't support M64 for P7IOC no matter what
OPAL firmware we have.

Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

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