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authorGlauber Costa <gcosta@redhat.com>2008-03-26 00:36:20 +0300
committerIngo Molnar <mingo@elte.hu>2008-04-19 21:19:56 +0400
commit6f5366354bf86f8d2c1cf241c9bbf44b2d350e30 (patch)
tree5f252a68c623a213ea4d767015d6c12e8f54f10f /include/asm-x86/dma-mapping.h
parent752bea4abbff5e3ffef36802b860e80d0b632990 (diff)
downloadlinux-6f5366354bf86f8d2c1cf241c9bbf44b2d350e30.tar.xz
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>
Diffstat (limited to 'include/asm-x86/dma-mapping.h')
-rw-r--r--include/asm-x86/dma-mapping.h54
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