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authorMichael Ellerman <michael@ellerman.id.au>2008-01-30 01:14:01 +1100
committerPaul Mackerras <paulus@samba.org>2008-01-31 12:11:10 +1100
commit86865771ea213d756b03e1f2ff44d3f811672762 (patch)
tree8e82d63ab4cf2ea9815b4a1b0ba7dae0f0f36cf6 /arch/powerpc
parent7fc67afc436cf7f74d8cc697012696187332fc35 (diff)
[POWERPC] Split out the IOMMU logic from cell_dma_dev_setup()
Split the IOMMU logic out from cell_dma_dev_setup() into a separate function. If we're not using dma_direct_ops or dma_iommu_ops we don't know what the hell's going on, so BUG. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/platforms/cell/iommu.c19
1 files changed, 13 insertions, 6 deletions
diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c
index b3655aa88dd..a6e6bc1b020 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -507,17 +507,12 @@ static struct cbe_iommu *cell_iommu_for_node(int nid)
static unsigned long cell_dma_direct_offset;
-static void cell_dma_dev_setup(struct device *dev)
+static void cell_dma_dev_setup_iommu(struct device *dev)
{
struct iommu_window *window;
struct cbe_iommu *iommu;
struct dev_archdata *archdata = &dev->archdata;
- if (get_pci_dma_ops() == &dma_direct_ops) {
- archdata->dma_data = (void *)cell_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
* never be necessary
@@ -534,6 +529,18 @@ static void cell_dma_dev_setup(struct device *dev)
archdata->dma_data = &window->table;
}
+static void cell_dma_dev_setup(struct device *dev)
+{
+ struct dev_archdata *archdata = &dev->archdata;
+
+ if (get_pci_dma_ops() == &dma_iommu_ops)
+ cell_dma_dev_setup_iommu(dev);
+ else if (get_pci_dma_ops() == &dma_direct_ops)
+ archdata->dma_data = (void *)cell_dma_direct_offset;
+ else
+ BUG();
+}
+
static void cell_pci_dma_dev_setup(struct pci_dev *dev)
{
cell_dma_dev_setup(&dev->dev);