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authorBecky Bruce <beckyb@kernel.crashing.org>2009-09-21 08:26:35 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-09-24 15:31:43 +1000
commit738ef42e32fe95553a424c04016b936c9f6c9afb (patch)
treef45f21a92eacbb22bd3223c5ac725473c6ec1d72 /arch/powerpc/kernel/dma-iommu.c
parent1cebd7a0f62804ca24f7b7b35e8105000b9e879a (diff)
downloadlinux-738ef42e32fe95553a424c04016b936c9f6c9afb.tar.bz2
powerpc: Change archdata dma_data to a union
Sometimes this is used to hold a simple offset, and sometimes it is used to hold a pointer. This patch changes it to a union containing void * and dma_addr_t. get/set accessors are also provided, because it was getting a bit ugly to get to the actual data. Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/dma-iommu.c')
-rw-r--r--arch/powerpc/kernel/dma-iommu.c16
1 files changed, 8 insertions, 8 deletions
diff --git a/arch/powerpc/kernel/dma-iommu.c b/arch/powerpc/kernel/dma-iommu.c
index 87ddb3fb948c..37771a518119 100644
--- a/arch/powerpc/kernel/dma-iommu.c
+++ b/arch/powerpc/kernel/dma-iommu.c
@@ -18,7 +18,7 @@
static void *dma_iommu_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t flag)
{
- return iommu_alloc_coherent(dev, dev->archdata.dma_data, size,
+ return iommu_alloc_coherent(dev, get_iommu_table_base(dev), size,
dma_handle, device_to_mask(dev), flag,
dev_to_node(dev));
}
@@ -26,7 +26,7 @@ static void *dma_iommu_alloc_coherent(struct device *dev, size_t size,
static void dma_iommu_free_coherent(struct device *dev, size_t size,
void *vaddr, dma_addr_t dma_handle)
{
- iommu_free_coherent(dev->archdata.dma_data, size, vaddr, dma_handle);
+ iommu_free_coherent(get_iommu_table_base(dev), size, vaddr, dma_handle);
}
/* Creates TCEs for a user provided buffer. The user buffer must be
@@ -39,8 +39,8 @@ static dma_addr_t dma_iommu_map_page(struct device *dev, struct page *page,
enum dma_data_direction direction,
struct dma_attrs *attrs)
{
- return iommu_map_page(dev, dev->archdata.dma_data, page, offset, size,
- device_to_mask(dev), direction, attrs);
+ return iommu_map_page(dev, get_iommu_table_base(dev), page, offset,
+ size, device_to_mask(dev), direction, attrs);
}
@@ -48,7 +48,7 @@ static void dma_iommu_unmap_page(struct device *dev, dma_addr_t dma_handle,
size_t size, enum dma_data_direction direction,
struct dma_attrs *attrs)
{
- iommu_unmap_page(dev->archdata.dma_data, dma_handle, size, direction,
+ iommu_unmap_page(get_iommu_table_base(dev), dma_handle, size, direction,
attrs);
}
@@ -57,7 +57,7 @@ static int dma_iommu_map_sg(struct device *dev, struct scatterlist *sglist,
int nelems, enum dma_data_direction direction,
struct dma_attrs *attrs)
{
- return iommu_map_sg(dev, dev->archdata.dma_data, sglist, nelems,
+ return iommu_map_sg(dev, get_iommu_table_base(dev), sglist, nelems,
device_to_mask(dev), direction, attrs);
}
@@ -65,14 +65,14 @@ static void dma_iommu_unmap_sg(struct device *dev, struct scatterlist *sglist,
int nelems, enum dma_data_direction direction,
struct dma_attrs *attrs)
{
- iommu_unmap_sg(dev->archdata.dma_data, sglist, nelems, direction,
+ iommu_unmap_sg(get_iommu_table_base(dev), sglist, nelems, direction,
attrs);
}
/* We support DMA to/from any memory page via the iommu */
static int dma_iommu_dma_supported(struct device *dev, u64 mask)
{
- struct iommu_table *tbl = dev->archdata.dma_data;
+ struct iommu_table *tbl = get_iommu_table_base(dev);
if (!tbl || tbl->it_offset > mask) {
printk(KERN_INFO