powerpc/iommu: Cleanup setting of DMA base/offset

Now that the table and the offset can co-exist, we no longer need
to flip/flop, we can just establish both once at boot time.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index 5738d31..2c286b5 100644 (file)
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -1620,11 +1620,9 @@ static int pnv_pci_ioda_dma_set_mask(struct pci_dev *pdev, u64 dma_mask)
        if (bypass) {
                dev_info(&pdev->dev, "Using 64-bit DMA iommu bypass\n");
                set_dma_ops(&pdev->dev, &dma_direct_ops);
-               set_dma_offset(&pdev->dev, pe->tce_bypass_base);
        } else {
                dev_info(&pdev->dev, "Using 32-bit DMA via iommu\n");
                set_dma_ops(&pdev->dev, &dma_iommu_ops);
-               set_iommu_table_base(&pdev->dev, pe->table_group.tables[0]);
        }
        *pdev->dev.dma_mask = dma_mask;
        return 0;
@@ -1659,6 +1657,7 @@ static void pnv_ioda_setup_bus_dma(struct pnv_ioda_pe *pe,
 
        list_for_each_entry(dev, &bus->devices, bus_list) {
                set_iommu_table_base(&dev->dev, pe->table_group.tables[0]);
+               set_dma_offset(&dev->dev, pe->tce_bypass_base);
                iommu_add_device(&dev->dev);
 
                if ((pe->flags & PNV_IODA_PE_BUS_ALL) && dev->subordinate)

diff --cc arch/powerpc/platforms/pseries/iommu.c
Simple merge

diff --cc arch/powerpc/sysdev/dart_iommu.c
Simple merge