[PATCH 06/21] dma API addition

zippel
2006-06-23T18:43:16Z

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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>

---

include/asm-m68k/dma-mapping.h | 28 ++++++++++++++++++++++++++++
1 files changed, 28 insertions(+), 0 deletions(-)

917fa3653132a17ee8b8ad27e906683cabe3dce1
diff --git a/include/asm-m68k/dma-mapping.h b/include/asm-m68k/dma-mapping.h
index 4f8575e..cebbb03 100644
--- a/include/asm-m68k/dma-mapping.h
+++ b/include/asm-m68k/dma-mapping.h
@@ -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 de
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,
--
1.3.3

--