[PATCH 3/3] powerpc/powernv: Don't configure IO window on PHB3

[Gavin Shan]

We needn't configure IO windows for the corresponding PEs on PHB3
since that doesn't support IO.

Signed-off-by: Gavin Shan <shangw at linux.vnet.ibm.com>
---
 arch/powerpc/platforms/powernv/pci-ioda.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index 0c3fa29..b4f3edb 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -894,7 +894,9 @@ static void pnv_ioda_setup_pe_seg(struct pci_controller *hose,
 		    res->start > res->end)
 			continue;
 
-		if (res->flags & IORESOURCE_IO) {
+		/* We needn't setup IO windows for PHB3 */
+		if (!(pe->pbus->bus_flags & PCI_BUS_FLAGS_NO_IO) &&
+		    res->flags & IORESOURCE_IO) {
 			region.start = res->start - phb->ioda.io_pci_base;
 			region.end   = res->end - phb->ioda.io_pci_base;
 			index = region.start / phb->ioda.io_segsize;
-- 
1.7.5.4