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yaml
---
r: 81346
b: refs/heads/master
c: 35e4a6e
h: refs/heads/master
v: v3
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Michael Ellerman authored and Paul Mackerras committed Jan 25, 2008
1 parent 76f53b0 commit 41bc959
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Showing 2 changed files with 9 additions and 4 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 450d87eaeb4d43bd9e1f9523a6a3bfeb48209fea
refs/heads/master: 35e4a6e26d0c6bc7f32087db61f0fb3666531183
11 changes: 8 additions & 3 deletions trunk/arch/powerpc/kernel/dma_64.c
Original file line number Diff line number Diff line change
Expand Up @@ -117,6 +117,11 @@ EXPORT_SYMBOL(dma_iommu_ops);
*/
unsigned long dma_direct_offset;

static unsigned long get_dma_direct_offset(struct device *dev)
{
return (unsigned long)dev->archdata.dma_data;
}

static void *dma_direct_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t flag)
{
Expand All @@ -130,7 +135,7 @@ static void *dma_direct_alloc_coherent(struct device *dev, size_t size,
return NULL;
ret = page_address(page);
memset(ret, 0, size);
*dma_handle = virt_to_abs(ret) | dma_direct_offset;
*dma_handle = virt_to_abs(ret) + get_dma_direct_offset(dev);

return ret;
}
Expand All @@ -145,7 +150,7 @@ static dma_addr_t dma_direct_map_single(struct device *dev, void *ptr,
size_t size,
enum dma_data_direction direction)
{
return virt_to_abs(ptr) | dma_direct_offset;
return virt_to_abs(ptr) + get_dma_direct_offset(dev);
}

static void dma_direct_unmap_single(struct device *dev, dma_addr_t dma_addr,
Expand All @@ -161,7 +166,7 @@ static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
int i;

for_each_sg(sgl, sg, nents, i) {
sg->dma_address = sg_phys(sg) | dma_direct_offset;
sg->dma_address = sg_phys(sg) + get_dma_direct_offset(dev);
sg->dma_length = sg->length;
}

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