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-rw-r--r--arch/avr32/include/asm/scatterlist.h26
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/avr32/include/asm/scatterlist.h b/arch/avr32/include/asm/scatterlist.h
new file mode 100644
index 00000000000..377320e3bd1
--- /dev/null
+++ b/arch/avr32/include/asm/scatterlist.h
@@ -0,0 +1,26 @@
+#ifndef __ASM_AVR32_SCATTERLIST_H
+#define __ASM_AVR32_SCATTERLIST_H
+
+#include <asm/types.h>
+
+struct scatterlist {
+#ifdef CONFIG_DEBUG_SG
+ unsigned long sg_magic;
+#endif
+ unsigned long page_link;
+ unsigned int offset;
+ dma_addr_t dma_address;
+ unsigned int length;
+};
+
+/* These macros should be used after a pci_map_sg call has been done
+ * to get bus addresses of each of the SG entries and their lengths.
+ * You should only work with the number of sg entries pci_map_sg
+ * returns.
+ */
+#define sg_dma_address(sg) ((sg)->dma_address)
+#define sg_dma_len(sg) ((sg)->length)
+
+#define ISA_DMA_THRESHOLD (0xffffffff)
+
+#endif /* __ASM_AVR32_SCATTERLIST_H */