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[POWERPC] Set archdata.dma_data for direct DMA in cell_dma_dev_setup() 

Store the direct_dma_offset in each device's dma_data in the case
where we're using the direct DMA ops.

We need to make sure we setup the ppc_md.pci_dma_dev_setup() callback
if we're using a non-zero offset.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Michael Ellerman 2008-01-21 16:42:41 +11:00 committed by Paul Mackerras
parent 9d5f49283b
commit 110f95c9f0
1 changed files with 6 additions and 2 deletions
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8
arch/powerpc/platforms/cell/iommu.c
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@ -496,9 +496,10 @@ static void cell_dma_dev_setup(struct device *dev)
struct cbe_iommu *iommu;
struct dev_archdata *archdata = &dev->archdata;
/* If we run without iommu, no need to do anything */
if (get_pci_dma_ops() == &dma_direct_ops)
if (get_pci_dma_ops() == &dma_direct_ops) {
archdata->dma_data = (void *)dma_direct_offset;
return;
}
/* Current implementation uses the first window available in that
* node's iommu. We -might- do something smarter later though it may
@ -690,6 +691,9 @@ static int __init cell_iommu_init_disabled(void)
dma_direct_offset += base;
if (dma_direct_offset != 0)
ppc_md.pci_dma_dev_setup = cell_pci_dma_dev_setup;
printk("iommu: disabled, direct DMA offset is 0x%lx\n",
dma_direct_offset);