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yaml
---
r: 90993
b: refs/heads/master
c: 6f53663
h: refs/heads/master
i:
  90991: 53c90bf
v: v3
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Glauber Costa authored and Ingo Molnar committed Apr 19, 2008
1 parent 1bf5014 commit 885fff3
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Showing 3 changed files with 55 additions and 50 deletions.
2 changes: 1 addition & 1 deletion [refs]
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@@ -1,2 +1,2 @@
---
refs/heads/master: 752bea4abbff5e3ffef36802b860e80d0b632990
refs/heads/master: 6f5366354bf86f8d2c1cf241c9bbf44b2d350e30
54 changes: 54 additions & 0 deletions trunk/include/asm-x86/dma-mapping.h
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@@ -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
49 changes: 0 additions & 49 deletions trunk/include/asm-x86/dma-mapping_64.h
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@@ -1,55 +1,6 @@
#ifndef _X8664_DMA_MAPPING_H
#define _X8664_DMA_MAPPING_H 1

/*
* 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;
};

extern dma_addr_t bad_dma_address;
extern const struct dma_mapping_ops* dma_ops;
extern int iommu_merge;
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