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#ifndef _ASM_DMA_MAPPING_H
#define _ASM_DMA_MAPPING_H
#include <asm/scatterlist.h>
#include <asm/cache.h>
#include <asm-generic/dma-coherent.h>
#ifndef CONFIG_SGI_IP27 /* Kludge to fix 2.6.39 build for IP27 */
#include <dma-coherence.h>
#endif
extern struct dma_map_ops *mips_dma_map_ops;
static inline struct dma_map_ops *get_dma_ops(struct device *dev)
{
if (dev && dev->archdata.dma_ops)
return dev->archdata.dma_ops;
else
return mips_dma_map_ops;
}
static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
{
if (!dev->dma_mask)
return 0;
return addr + size <= *dev->dma_mask;
}
static inline void dma_mark_clean(void *addr, size_t size) {}
#include <asm-generic/dma-mapping-common.h>
static inline int dma_supported(struct device *dev, u64 mask)
{
struct dma_map_ops *ops = get_dma_ops(dev);
return ops->dma_supported(dev, mask);
}
static inline int dma_mapping_error(struct device *dev, u64 mask)
{
struct dma_map_ops *ops = get_dma_ops(dev);
return ops->mapping_error(dev, mask);
}
static inline int
dma_set_mask(struct device *dev, u64 mask)
{
if(!dev->dma_mask || !dma_supported(dev, mask))
return -EIO;
*dev->dma_mask = mask;
return 0;
}
extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
enum dma_data_direction direction);
static inline void *dma_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t gfp)
{
void *ret;
struct dma_map_ops *ops = get_dma_ops(dev);
ret = ops->alloc_coherent(dev, size, dma_handle, gfp);
debug_dma_alloc_coherent(dev, size, *dma_handle, ret);
return ret;
}
static inline void dma_free_coherent(struct device *dev, size_t size,
void *vaddr, dma_addr_t dma_handle)
{
struct dma_map_ops *ops = get_dma_ops(dev);
ops->free_coherent(dev, size, vaddr, dma_handle);
debug_dma_free_coherent(dev, size, vaddr, dma_handle);
}
void *dma_alloc_noncoherent(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t flag);
void dma_free_noncoherent(struct device *dev, size_t size,
void *vaddr, dma_addr_t dma_handle);
#endif /* _ASM_DMA_MAPPING_H */
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