x86: move dma_ops struct definition to dma-mapping.h

take it off the x86_64 specific header

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 54 insertions, 0 deletions

diff --git a/include/asm-x86/dma-mapping.h b/include/asm-x86/dma-mapping.h
index 58f790f4df52..aebd178a19ac 100644
--- a/include/asm-x86/dma-mapping.h
+++ b/include/asm-x86/dma-mapping.h
@@ -1,5 +1,59 @@
+#ifndef _ASM_DMA_MAPPING_H_
+#define _ASM_DMA_MAPPING_H_
+
+/*
+ * IOMMU interface. See Documentation/DMA-mapping.txt and DMA-API.txt for
+ * documentation.
+ */
+
+#include <linux/scatterlist.h>
+#include <asm/io.h>
+#include <asm/swiotlb.h>
+
+struct dma_mapping_ops {
+        int             (*mapping_error)(dma_addr_t dma_addr);
+        void*           (*alloc_coherent)(struct device *dev, size_t size,
+                                dma_addr_t *dma_handle, gfp_t gfp);
+        void            (*free_coherent)(struct device *dev, size_t size,
+                                void *vaddr, dma_addr_t dma_handle);
+        dma_addr_t      (*map_single)(struct device *hwdev, void *ptr,
+                                size_t size, int direction);
+        /* like map_single, but doesn't check the device mask */
+        dma_addr_t      (*map_simple)(struct device *hwdev, char *ptr,
+                                size_t size, int direction);
+        void            (*unmap_single)(struct device *dev, dma_addr_t addr,
+                                size_t size, int direction);
+        void            (*sync_single_for_cpu)(struct device *hwdev,
+                                dma_addr_t dma_handle, size_t size,
+                                int direction);
+        void            (*sync_single_for_device)(struct device *hwdev,
+                                dma_addr_t dma_handle, size_t size,
+                                int direction);
+        void            (*sync_single_range_for_cpu)(struct device *hwdev,
+                                dma_addr_t dma_handle, unsigned long offset,
+                                size_t size, int direction);
+        void            (*sync_single_range_for_device)(struct device *hwdev,
+                                dma_addr_t dma_handle, unsigned long offset,
+                                size_t size, int direction);
+        void            (*sync_sg_for_cpu)(struct device *hwdev,
+                                struct scatterlist *sg, int nelems,
+                                int direction);
+        void            (*sync_sg_for_device)(struct device *hwdev,
+                                struct scatterlist *sg, int nelems,
+                                int direction);
+        int             (*map_sg)(struct device *hwdev, struct scatterlist *sg,
+                                int nents, int direction);
+        void            (*unmap_sg)(struct device *hwdev,
+                                struct scatterlist *sg, int nents,
+                                int direction);
+        int             (*dma_supported)(struct device *hwdev, u64 mask);
+        int             is_phys;
+};
+
 #ifdef CONFIG_X86_32
 # include "dma-mapping_32.h"
 #else
 # include "dma-mapping_64.h"
 #endif
+
+#endif