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Diffstat (limited to 'arch/m32r/include/asm/dma-mapping.h')
-rw-r--r--arch/m32r/include/asm/dma-mapping.h32
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/m32r/include/asm/dma-mapping.h b/arch/m32r/include/asm/dma-mapping.h
new file mode 100644
index 000000000000..2c43a77fe942
--- /dev/null
+++ b/arch/m32r/include/asm/dma-mapping.h
@@ -0,0 +1,32 @@
+#ifndef _ASM_M32R_DMA_MAPPING_H
+#define _ASM_M32R_DMA_MAPPING_H
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <linux/scatterlist.h>
+#include <linux/dma-debug.h>
+#include <linux/io.h>
+
+#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
+
+static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+{
+ if (dev && dev->archdata.dma_ops)
+ return dev->archdata.dma_ops;
+ return &dma_noop_ops;
+}
+
+static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
+ enum dma_data_direction direction)
+{
+}
+
+static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
+{
+ if (!dev->dma_mask)
+ return false;
+ return addr + size - 1 <= *dev->dma_mask;
+}
+
+#endif /* _ASM_M32R_DMA_MAPPING_H */