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* Copyright (C) 2003-2004 Hewlett-Packard Co
* David Mosberger-Tang <>
#include <asm/machvec.h>
#include <linux/scatterlist.h>
#define dma_alloc_coherent platform_dma_alloc_coherent
/* coherent mem. is cheap */
static inline void *
dma_alloc_noncoherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
gfp_t flag)
return dma_alloc_coherent(dev, size, dma_handle, flag);
#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)
dma_free_coherent(dev, size, cpu_addr, dma_handle);
#define dma_map_single platform_dma_map_single
#define dma_map_sg platform_dma_map_sg
#define dma_unmap_single platform_dma_unmap_single
#define dma_unmap_sg platform_dma_unmap_sg
#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))
#define dma_unmap_page(dev, dma_addr, size, dir) \
dma_unmap_single(dev, dma_addr, size, dir)
* Rest of this file is part of the "Advanced DMA API". Use at your own risk.
* See Documentation/DMA-API.txt for details.
#define dma_sync_single_range_for_cpu(dev, dma_handle, offset, size, dir) \
dma_sync_single_for_cpu(dev, dma_handle, size, dir)
#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_set_mask (struct device *dev, u64 mask)
if (!dev->dma_mask || !dma_supported(dev, mask))
return -EIO;
*dev->dma_mask = mask;
return 0;
extern int dma_get_cache_alignment(void);
static inline void
dma_cache_sync (struct device *dev, void *vaddr, size_t size,
enum dma_data_direction dir)
* IA-64 is cache-coherent, so this is mostly a no-op. However, we do need to
* ensure that dma_cache_sync() enforces order, hence the mb().
#define dma_is_consistent(d, h) (1) /* all we do is coherent memory... */
#endif /* _ASM_IA64_DMA_MAPPING_H */