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| author | Mark Nelson <markn@au1.ibm.com> | 2008-07-05 05:05:44 +1000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-07-09 16:30:43 +1000 |
| commit | 7e5f8105030038de94b44a74cd7b64dd000830fc (patch) | |
| tree | f06d44bb94b9d1dfd4b32fe99fa8c918a4284ad2 /arch/powerpc/platforms/cell/iommu.c | |
| parent | 3affedc4e1ce837033b6c5e9289d2ce2f5a62d31 (diff) | |
| download | lwn-7e5f8105030038de94b44a74cd7b64dd000830fc.tar.gz lwn-7e5f8105030038de94b44a74cd7b64dd000830fc.zip | |
powerpc/cell: cell_dma_dev_setup_iommu() return the iommu table
Make cell_dma_dev_setup_iommu() return a pointer to the struct iommu_table
(or NULL if no table can be found) rather than putting this pointer into
dev->archdata.dma_data (let the caller do that), and rename this function
to cell_get_iommu_table() to reflect this change.
This will allow us to get the iommu table for a device that doesn't have
the table in the archdata.
Signed-off-by: Mark Nelson <markn@au1.ibm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/platforms/cell/iommu.c')
| -rw-r--r-- | arch/powerpc/platforms/cell/iommu.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c index 45646b2b4af4..eeacb3a52ca1 100644 --- a/arch/powerpc/platforms/cell/iommu.c +++ b/arch/powerpc/platforms/cell/iommu.c @@ -540,7 +540,7 @@ static unsigned long cell_dma_direct_offset; static unsigned long dma_iommu_fixed_base; struct dma_mapping_ops dma_iommu_fixed_ops; -static void cell_dma_dev_setup_iommu(struct device *dev) +static struct iommu_table *cell_get_iommu_table(struct device *dev) { struct iommu_window *window; struct cbe_iommu *iommu; @@ -555,11 +555,11 @@ static void cell_dma_dev_setup_iommu(struct device *dev) printk(KERN_ERR "iommu: missing iommu for %s (node %d)\n", archdata->of_node ? archdata->of_node->full_name : "?", archdata->numa_node); - return; + return NULL; } window = list_entry(iommu->windows.next, struct iommu_window, list); - archdata->dma_data = &window->table; + return &window->table; } static void cell_dma_dev_setup_fixed(struct device *dev); @@ -572,7 +572,7 @@ static void cell_dma_dev_setup(struct device *dev) if (get_dma_ops(dev) == &dma_iommu_fixed_ops) cell_dma_dev_setup_fixed(dev); else if (get_pci_dma_ops() == &dma_iommu_ops) - cell_dma_dev_setup_iommu(dev); + archdata->dma_data = cell_get_iommu_table(dev); else if (get_pci_dma_ops() == &dma_direct_ops) archdata->dma_data = (void *)cell_dma_direct_offset; else |