[LINUX][IA64] New file swiotlb.h.

Signed-off-by: Alex Williamson <alex.williamson@hp.com>

diff --git a/linux-2.6-xen-sparse/include/asm-ia64/swiotlb.h b/linux-2.6-xen-sparse/include/asm-ia64/swiotlb.h
new file mode 100644 (file)
index 0000000..bb3d7d2
--- /dev/null
+++ b/linux-2.6-xen-sparse/include/asm-ia64/swiotlb.h
@@ -0,0 +1,45 @@
+#ifndef _ASM_SWIOTLB_H
+#define _ASM_SWIOTLB_H 1
+
+#include <linux/config.h>
+
+/* SWIOTLB interface */
+
+extern dma_addr_t swiotlb_map_single(struct device *hwdev, void *ptr, size_t size,
+                                     int dir);
+extern void swiotlb_unmap_single(struct device *hwdev, dma_addr_t dev_addr,
+                                 size_t size, int dir);
+extern void swiotlb_sync_single_for_cpu(struct device *hwdev,
+                                        dma_addr_t dev_addr,
+                                        size_t size, int dir);
+extern void swiotlb_sync_single_for_device(struct device *hwdev,
+                                           dma_addr_t dev_addr,
+                                           size_t size, int dir);
+extern void swiotlb_sync_sg_for_cpu(struct device *hwdev,
+                                    struct scatterlist *sg, int nelems,
+                                    int dir);
+extern void swiotlb_sync_sg_for_device(struct device *hwdev,
+                                       struct scatterlist *sg, int nelems,
+                                       int dir);
+extern int swiotlb_map_sg(struct device *hwdev, struct scatterlist *sg,
+                     int nents, int direction);
+extern void swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sg,
+                        int nents, int direction);
+extern int swiotlb_dma_mapping_error(dma_addr_t dma_addr);
+extern dma_addr_t swiotlb_map_page(struct device *hwdev, struct page *page,
+                                   unsigned long offset, size_t size,
+                                   enum dma_data_direction direction);
+extern void swiotlb_unmap_page(struct device *hwdev, dma_addr_t dma_address,
+                               size_t size, enum dma_data_direction direction);
+extern int swiotlb_dma_supported(struct device *hwdev, u64 mask);
+extern void swiotlb_init(void);
+
+extern unsigned int dma_bits;
+
+#ifdef CONFIG_SWIOTLB
+extern int swiotlb;
+#else
+#define swiotlb 0
+#endif
+
+#endif