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powerpc/powernv: Update dev->dma_mask in pci_set_dma_mask() path

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powerpc defines various machine-specific routines for handling
pci_set_dma_mask().  The routines for machine "PowerNV" may neglect
to set dev->dma_mask.  This could confuse anyone (e.g. drivers) that
consult dev->dma_mask to find the current mask.  Set the dma_mask in
the PowerNV leaf routine.

Signed-off-by: Brian W. Hart <hartb@linux.vnet.ibm.com>
CC: <stable@vger.kernel.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Brian W Hart 2014-07-31 14:24:37 -05:00 committed by Benjamin Herrenschmidt
parent 7d17622159
commit a32305bf90
1 changed files with 1 additions and 0 deletions
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arch/powerpc/platforms/powernv/pci-ioda.c
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@ -491,6 +491,7 @@ static int pnv_pci_ioda_dma_set_mask(struct pnv_phb *phb,
set_dma_ops(&pdev->dev, &dma_iommu_ops);
set_iommu_table_base(&pdev->dev, &pe->tce32_table);
}
*pdev->dev.dma_mask = dma_mask;
return 0;
}