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powerpc/powernv: Don't use pe->pbus to get the domain number

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If the PE contains single PCI function, "pe->pbus" would be NULL.
It's not reliable to be used by pci_domain_nr().  We just grab the
PCI domain number from the PCI host controller (struct pci_controller)
instance.

Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Gavin Shan 2014-04-24 18:00:29 +10:00 committed by Benjamin Herrenschmidt
parent 65fd766b99
commit e9bc03fe22
1 changed files with 2 additions and 2 deletions
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4
arch/powerpc/platforms/powernv/pci-ioda.c
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@ -672,7 +672,7 @@ static void pnv_pci_ioda_setup_dma_pe(struct pnv_phb *phb,
TCE_PCI_SWINV_PAIR);
}
iommu_init_table(tbl, phb->hose->node);
iommu_register_group(tbl, pci_domain_nr(pe->pbus), pe->pe_number);
iommu_register_group(tbl, phb->hose->global_number, pe->pe_number);
if (pe->pdev)
set_iommu_table_base_and_group(&pe->pdev->dev, tbl);
@ -800,7 +800,7 @@ static void pnv_pci_ioda2_setup_dma_pe(struct pnv_phb *phb,
tbl->it_type |= (TCE_PCI_SWINV_CREATE | TCE_PCI_SWINV_FREE);
}
iommu_init_table(tbl, phb->hose->node);
iommu_register_group(tbl, pci_domain_nr(pe->pbus), pe->pe_number);
iommu_register_group(tbl, phb->hose->global_number, pe->pe_number);
if (pe->pdev)
set_iommu_table_base_and_group(&pe->pdev->dev, tbl);