From 110f95c9f082709c5a28a64c00bae819916e8578 Mon Sep 17 00:00:00 2001
From: Michael Ellerman <michael@ellerman.id.au>
Date: Mon, 21 Jan 2008 16:42:41 +1100
Subject: [PATCH] [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>
---
arch/powerpc/platforms/cell/iommu.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c
index bceb5e13da5c7..9682b63dfc786 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -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);
--
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