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#ifndef ___ASM_SPARC_DMA_MAPPING_H
#define ___ASM_SPARC_DMA_MAPPING_H
#include <linux/scatterlist.h>
#include <linux/mm.h>
#include <linux/dma-debug.h>
#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
int dma_supported(struct device *dev, u64 mask);
static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
enum dma_data_direction dir)
{
/* Since dma_{alloc,free}_noncoherent() allocated coherent memory, this
* routine can be a nop.
*/
}
extern struct dma_map_ops *dma_ops;
extern struct dma_map_ops *leon_dma_ops;
extern struct dma_map_ops pci32_dma_ops;
extern struct bus_type pci_bus_type;
static inline struct dma_map_ops *get_dma_ops(struct device *dev)
{
#ifdef CONFIG_SPARC_LEON
if (sparc_cpu_model == sparc_leon)
return leon_dma_ops;
#endif
#if defined(CONFIG_SPARC32) && defined(CONFIG_PCI)
if (dev->bus == &pci_bus_type)
return &pci32_dma_ops;
#endif
return dma_ops;
}
#include <asm-generic/dma-mapping-common.h>
static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
{
debug_dma_mapping_error(dev, dma_addr);
return (dma_addr == DMA_ERROR_CODE);
}
static inline int dma_set_mask(struct device *dev, u64 mask)
{
#ifdef CONFIG_PCI
if (dev->bus == &pci_bus_type) {
if (!dev->dma_mask || !dma_supported(dev, mask))
return -EINVAL;
*dev->dma_mask = mask;
return 0;
}
#endif
return -EINVAL;
}
#endif
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