diff options
| author | Michael Ellerman <michael@ellerman.id.au> | 2008-01-30 01:14:01 +1100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2008-01-31 12:11:10 +1100 |
| commit | 86865771ea213d756b03e1f2ff44d3f811672762 (patch) | |
| tree | 8e82d63ab4cf2ea9815b4a1b0ba7dae0f0f36cf6 /arch | |
| parent | 7fc67afc436cf7f74d8cc697012696187332fc35 (diff) | |
| download | lwn-86865771ea213d756b03e1f2ff44d3f811672762.tar.gz lwn-86865771ea213d756b03e1f2ff44d3f811672762.zip | |
[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')
| -rw-r--r-- | arch/powerpc/platforms/cell/iommu.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c index b3655aa88ddb..a6e6bc1b020f 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); |