Commit c73049f6 authored by Mark Nelson's avatar Mark Nelson Committed by Paul Mackerras

powerpc: Remove map_/unmap_single() from dma_mapping_ops

Now that all of the remaining dma_mapping_ops have had their
map_/unmap_single functions updated to become map/unmap_page
functions, there is no need to have the map_/unmap_single function
pointers in the dma_mapping_ops.

So, this removes them and also removes the code that does the checking
for which set of functions to use.
Signed-off-by: default avatarMark Nelson <markn@au1.ibm.com>
Acked-by: default avatarBecky Bruce <becky.bruce@freescale.com>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent 7eef440a
......@@ -60,12 +60,6 @@ struct dma_mapping_ops {
dma_addr_t *dma_handle, gfp_t flag);
void (*free_coherent)(struct device *dev, size_t size,
void *vaddr, dma_addr_t dma_handle);
dma_addr_t (*map_single)(struct device *dev, void *ptr,
size_t size, enum dma_data_direction direction,
struct dma_attrs *attrs);
void (*unmap_single)(struct device *dev, dma_addr_t dma_addr,
size_t size, enum dma_data_direction direction,
struct dma_attrs *attrs);
int (*map_sg)(struct device *dev, struct scatterlist *sg,
int nents, enum dma_data_direction direction,
struct dma_attrs *attrs);
......@@ -149,10 +143,9 @@ static inline int dma_set_mask(struct device *dev, u64 dma_mask)
}
/*
* TODO: map_/unmap_single will ideally go away, to be completely
* replaced by map/unmap_page. Until then, we allow dma_ops to have
* one or the other, or both by checking to see if the specific
* function requested exists; and if not, falling back on the other set.
* map_/unmap_single actually call through to map/unmap_page now that all the
* dma_mapping_ops have been converted over. We just have to get the page and
* offset to pass through to map_page
*/
static inline dma_addr_t dma_map_single_attrs(struct device *dev,
void *cpu_addr,
......@@ -164,10 +157,6 @@ static inline dma_addr_t dma_map_single_attrs(struct device *dev,
BUG_ON(!dma_ops);
if (dma_ops->map_single)
return dma_ops->map_single(dev, cpu_addr, size, direction,
attrs);
return dma_ops->map_page(dev, virt_to_page(cpu_addr),
(unsigned long)cpu_addr % PAGE_SIZE, size,
direction, attrs);
......@@ -183,11 +172,6 @@ static inline void dma_unmap_single_attrs(struct device *dev,
BUG_ON(!dma_ops);
if (dma_ops->unmap_single) {
dma_ops->unmap_single(dev, dma_addr, size, direction, attrs);
return;
}
dma_ops->unmap_page(dev, dma_addr, size, direction, attrs);
}
......@@ -201,12 +185,7 @@ static inline dma_addr_t dma_map_page_attrs(struct device *dev,
BUG_ON(!dma_ops);
if (dma_ops->map_page)
return dma_ops->map_page(dev, page, offset, size, direction,
attrs);
return dma_ops->map_single(dev, page_address(page) + offset, size,
direction, attrs);
return dma_ops->map_page(dev, page, offset, size, direction, attrs);
}
static inline void dma_unmap_page_attrs(struct device *dev,
......@@ -219,12 +198,7 @@ static inline void dma_unmap_page_attrs(struct device *dev,
BUG_ON(!dma_ops);
if (dma_ops->unmap_page) {
dma_ops->unmap_page(dev, dma_address, size, direction, attrs);
return;
}
dma_ops->unmap_single(dev, dma_address, size, direction, attrs);
}
static inline int dma_map_sg_attrs(struct device *dev, struct scatterlist *sg,
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment