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[PATCH] m68k: dma API addition

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Additions to dma API with some small cleanups.

Signed-off-by: Richard Hirst <rhirst@levanta.com>
Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Roman Zippel 2006-06-25 05:46:57 -07:00 committed by Linus Torvalds
parent b035c96b2d
commit 742636f5bf
1 changed files with 28 additions and 0 deletions
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28
include/asm-m68k/dma-mapping.h
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@ -1,6 +1,8 @@
#ifndef _M68K_DMA_MAPPING_H
#define _M68K_DMA_MAPPING_H
#include <asm/cache.h>
struct scatterlist;
static inline int dma_supported(struct device *dev, u64 mask)
@ -13,11 +15,37 @@ static inline int dma_set_mask(struct device *dev, u64 mask)
return 0;
}
static inline int dma_get_cache_alignment(void)
{
return 1 << L1_CACHE_SHIFT;
}
static inline int dma_is_consistent(dma_addr_t dma_addr)
{
return 0;
}
extern void *dma_alloc_coherent(struct device *, size_t,
dma_addr_t *, int);
extern void dma_free_coherent(struct device *, size_t,
void *, dma_addr_t);
static inline void *dma_alloc_noncoherent(struct device *dev, size_t size,
dma_addr_t *handle, int flag)
{
return dma_alloc_coherent(dev, size, handle, flag);
}
static inline void dma_free_noncoherent(struct device *dev, size_t size,
void *addr, dma_addr_t handle)
{
dma_free_coherent(dev, size, addr, handle);
}
static inline void dma_cache_sync(void *vaddr, size_t size,
enum dma_data_direction dir)
{
/* we use coherent allocation, so not much to do here. */
}
extern dma_addr_t dma_map_single(struct device *, void *, size_t,
enum dma_data_direction);
static inline void dma_unmap_single(struct device *dev, dma_addr_t addr,