1 files changed, 70 insertions, 0 deletions

diff --git a/include/asm-ia64/dma-mapping.h b/include/asm-ia64/dma-mapping.h
new file mode 100644
index 000000000000..6347c9845642
--- /dev/null
+++ b/include/asm-ia64/dma-mapping.h
@@ -0,0 +1,70 @@
+#ifndef _ASM_IA64_DMA_MAPPING_H
+#define _ASM_IA64_DMA_MAPPING_H
+
+/*
+ * Copyright (C) 2003-2004 Hewlett-Packard Co
+ *      David Mosberger-Tang <davidm@hpl.hp.com>
+ */
+#include <linux/config.h>
+#include <asm/machvec.h>
+
+#define dma_alloc_coherent      platform_dma_alloc_coherent
+#define dma_alloc_noncoherent   platform_dma_alloc_coherent     /* coherent mem. is cheap */
+#define dma_free_coherent       platform_dma_free_coherent
+#define dma_free_noncoherent    platform_dma_free_coherent
+#define dma_map_single          platform_dma_map_single
+#define dma_map_sg              platform_dma_map_sg
+#define dma_unmap_single        platform_dma_unmap_single
+#define dma_unmap_sg            platform_dma_unmap_sg
+#define dma_sync_single_for_cpu platform_dma_sync_single_for_cpu
+#define dma_sync_sg_for_cpu     platform_dma_sync_sg_for_cpu
+#define dma_sync_single_for_device platform_dma_sync_single_for_device
+#define dma_sync_sg_for_device  platform_dma_sync_sg_for_device
+#define dma_mapping_error       platform_dma_mapping_error
+
+#define dma_map_page(dev, pg, off, size, dir)                           \
+        dma_map_single(dev, page_address(pg) + (off), (size), (dir))
+#define dma_unmap_page(dev, dma_addr, size, dir)                        \
+        dma_unmap_single(dev, dma_addr, size, dir)
+
+/*
+ * Rest of this file is part of the "Advanced DMA API".  Use at your own risk.
+ * See Documentation/DMA-API.txt for details.
+ */
+
+#define dma_sync_single_range_for_cpu(dev, dma_handle, offset, size, dir)       \
+        dma_sync_single_for_cpu(dev, dma_handle, size, dir)
+#define dma_sync_single_range_for_device(dev, dma_handle, offset, size, dir)    \
+        dma_sync_single_for_device(dev, dma_handle, size, dir)
+
+#define dma_supported           platform_dma_supported
+
+static inline int
+dma_set_mask (struct device *dev, u64 mask)
+{
+        if (!dev->dma_mask || !dma_supported(dev, mask))
+                return -EIO;
+        *dev->dma_mask = mask;
+        return 0;
+}
+
+static inline int
+dma_get_cache_alignment (void)
+{
+        extern int ia64_max_cacheline_size;
+        return ia64_max_cacheline_size;
+}
+
+static inline void
+dma_cache_sync (void *vaddr, size_t size, enum dma_data_direction dir)
+{
+        /*
+         * IA-64 is cache-coherent, so this is mostly a no-op.  However, we do need to
+         * ensure that dma_cache_sync() enforces order, hence the mb().
+         */
+        mb();
+}
+
+#define dma_is_consistent(dma_handle)   (1)     /* all we do is coherent memory... */
+
+#endif /* _ASM_IA64_DMA_MAPPING_H */