Skip to content

Commit

Permalink
convert the DMA API to use dma_ops
Browse files Browse the repository at this point in the history 
This writes asm/dma-mapping.h to convert the DMA API to use dma_ops.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
  • Loading branch information
FUJITA Tomonori authored and Ingo Molnar committed Jan 6, 2009
1 parent 4d9b977 commit b7ea6e9
Showing 1 changed file with 77 additions and 36 deletions.
113 changes: 77 additions & 36 deletions arch/ia64/include/asm/dma-mapping.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -65,52 +65,92 @@ extern struct dma_mapping_ops *dma_ops;
extern struct ia64_machine_vector ia64_mv;
extern void set_iommu_machvec(void);

#define dma_alloc_coherent(dev, size, handle, gfp) \
platform_dma_alloc_coherent(dev, size, handle, (gfp) | GFP_DMA)
static inline void *dma_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *daddr, gfp_t gfp)
{
return dma_ops->alloc_coherent(dev, size, daddr, gfp | GFP_DMA);
}

/* coherent mem. is cheap */
static inline void *
dma_alloc_noncoherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
gfp_t flag)
static inline void dma_free_coherent(struct device *dev, size_t size,
void *caddr, dma_addr_t daddr)
{
return dma_alloc_coherent(dev, size, dma_handle, flag);
dma_ops->free_coherent(dev, size, caddr, daddr);
}
#define dma_free_coherent platform_dma_free_coherent
static inline void
dma_free_noncoherent(struct device *dev, size_t size, void *cpu_addr,
dma_addr_t dma_handle)

#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)

static inline dma_addr_t dma_map_single_attrs(struct device *dev,
void *caddr, size_t size,
enum dma_data_direction dir,
struct dma_attrs *attrs)
{
return dma_ops->map_single_attrs(dev, caddr, size, dir, attrs);
}

static inline void dma_unmap_single_attrs(struct device *dev, dma_addr_t daddr,
size_t size,
enum dma_data_direction dir,
struct dma_attrs *attrs)
{
dma_free_coherent(dev, size, cpu_addr, dma_handle);
dma_ops->unmap_single_attrs(dev, daddr, size, dir, attrs);
}
#define dma_map_single_attrs platform_dma_map_single_attrs
static inline dma_addr_t dma_map_single(struct device *dev, void *cpu_addr,
size_t size, int dir)

#define dma_map_single(d, a, s, r) dma_map_single_attrs(d, a, s, r, NULL)
#define dma_unmap_single(d, a, s, r) dma_unmap_single_attrs(d, a, s, r, NULL)

static inline int dma_map_sg_attrs(struct device *dev, struct scatterlist *sgl,
int nents, enum dma_data_direction dir,
struct dma_attrs *attrs)
{
return dma_map_single_attrs(dev, cpu_addr, size, dir, NULL);
return dma_ops->map_sg_attrs(dev, sgl, nents, dir, attrs);
}
#define dma_map_sg_attrs platform_dma_map_sg_attrs
static inline int dma_map_sg(struct device *dev, struct scatterlist *sgl,
int nents, int dir)

static inline void dma_unmap_sg_attrs(struct device *dev,
struct scatterlist *sgl, int nents,
enum dma_data_direction dir,
struct dma_attrs *attrs)
{
return dma_map_sg_attrs(dev, sgl, nents, dir, NULL);
dma_ops->unmap_sg_attrs(dev, sgl, nents, dir, attrs);
}
#define dma_unmap_single_attrs platform_dma_unmap_single_attrs
static inline void dma_unmap_single(struct device *dev, dma_addr_t cpu_addr,
size_t size, int dir)

#define dma_map_sg(d, s, n, r) dma_map_sg_attrs(d, s, n, r, NULL)
#define dma_unmap_sg(d, s, n, r) dma_unmap_sg_attrs(d, s, n, r, NULL)

static inline void dma_sync_single_for_cpu(struct device *dev, dma_addr_t daddr,
size_t size,
enum dma_data_direction dir)
{
return dma_unmap_single_attrs(dev, cpu_addr, size, dir, NULL);
dma_ops->sync_single_for_cpu(dev, daddr, size, dir);
}
#define dma_unmap_sg_attrs platform_dma_unmap_sg_attrs
static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sgl,
int nents, int dir)

static inline void dma_sync_sg_for_cpu(struct device *dev,
struct scatterlist *sgl,
int nents, enum dma_data_direction dir)
{
return dma_unmap_sg_attrs(dev, sgl, nents, dir, NULL);
dma_ops->sync_sg_for_cpu(dev, sgl, nents, dir);
}

static inline void dma_sync_single_for_device(struct device *dev,
dma_addr_t daddr,
size_t size,
enum dma_data_direction dir)
{
dma_ops->sync_single_for_device(dev, daddr, size, dir);
}

static inline void dma_sync_sg_for_device(struct device *dev,
struct scatterlist *sgl,
int nents,
enum dma_data_direction dir)
{
dma_ops->sync_sg_for_device(dev, sgl, nents, dir);
}

static inline int dma_mapping_error(struct device *dev, dma_addr_t daddr)
{
return dma_ops->mapping_error(dev, daddr);
}
#define dma_sync_single_for_cpu platform_dma_sync_single_for_cpu
#define dma_sync_sg_for_cpu platform_dma_sync_sg_for_cpu
#define dma_sync_single_for_device platform_dma_sync_single_for_device
#define dma_sync_sg_for_device platform_dma_sync_sg_for_device
#define dma_mapping_error platform_dma_mapping_error

#define dma_map_page(dev, pg, off, size, dir) \
dma_map_single(dev, page_address(pg) + (off), (size), (dir))
Expand All @@ -127,7 +167,10 @@ static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sgl,
#define dma_sync_single_range_for_device(dev, dma_handle, offset, size, dir) \
dma_sync_single_for_device(dev, dma_handle, size, dir)

#define dma_supported platform_dma_supported
static inline int dma_supported(struct device *dev, u64 mask)
{
return dma_ops->dma_supported_op(dev, mask);
}

static inline int
dma_set_mask (struct device *dev, u64 mask)
Expand Down Expand Up @@ -158,6 +201,4 @@ static inline struct dma_mapping_ops *get_dma_ops(struct device *dev)
return dma_ops;
}



#endif /* _ASM_IA64_DMA_MAPPING_H */

0 comments on commit b7ea6e9

Please sign in to comment.