dma-mapping.h File Reference

#include <linux/kmemcheck.h>
#include <linux/scatterlist.h>
#include <linux/dma-debug.h>
#include <linux/dma-attrs.h>
#include <asm/io.h>
#include <asm/swiotlb.h>
#include <asm-generic/dma-coherent.h>
#include <linux/dma-contiguous.h>
#include <asm-generic/dma-mapping-common.h>

Go to the source code of this file.

Macros
#define	ISA_DMA_BIT_MASK   DMA_BIT_MASK(32)
#define	DMA_ERROR_CODE   0
#define	dma_alloc_noncoherent(d, s, h, f)   dma_alloc_coherent(d, s, h, f)
#define	dma_free_noncoherent(d, s, v, h)   dma_free_coherent(d, s, v, h)
#define	dma_alloc_coherent(d, s, h, f)   dma_alloc_attrs(d,s,h,f,NULL)
#define	dma_free_coherent(d, s, c, h)   dma_free_attrs(d,s,c,h,NULL)

Functions
int	dma_supported (struct device *hwdev, u64 mask)
int	dma_set_mask (struct device *dev, u64 mask)
void *	dma_generic_alloc_coherent (struct device *dev, size_t size, dma_addr_t *dma_addr, gfp_t flag, struct dma_attrs *attrs)
void	dma_generic_free_coherent (struct device *dev, size_t size, void *vaddr, dma_addr_t dma_addr, struct dma_attrs *attrs)

Variables
int	iommu_merge
struct device	x86_dma_fallback_dev
int	panic_on_overflow
struct dma_map_ops *	dma_ops

Macro Definition Documentation

#define dma_alloc_coherent	(		d,
			s,
			h,
			f
	)		dma_alloc_attrs(d,s,h,f,NULL)

Definition at line 127 of file dma-mapping.h.

#define dma_alloc_noncoherent	(		d,
			s,
			h,
			f
	)		dma_alloc_coherent(d, s, h, f)

Definition at line 56 of file dma-mapping.h.

#define DMA_ERROR_CODE   0

Definition at line 24 of file dma-mapping.h.

#define dma_free_coherent	(		d,
			s,
			c,
			h
	)		dma_free_attrs(d,s,c,h,NULL)

Definition at line 157 of file dma-mapping.h.

#define dma_free_noncoherent	(		d,
			s,
			v,
			h
	)		dma_free_coherent(d, s, v, h)

Definition at line 57 of file dma-mapping.h.

#define ISA_DMA_BIT_MASK   DMA_BIT_MASK(32)

Definition at line 21 of file dma-mapping.h.

Function Documentation

void* dma_generic_alloc_coherent	(	struct device *	dev,
		size_t	size,
		dma_addr_t *	dma_addr,
		gfp_t	flag,
		struct dma_attrs *	attrs
	)

Definition at line 35 of file consistent.c.

void dma_generic_free_coherent	(	struct device *	dev,
		size_t	size,
		void *	vaddr,
		dma_addr_t	dma_addr,
		struct dma_attrs *	attrs
	)

Definition at line 67 of file consistent.c.

int dma_set_mask	(	struct device *	dev,
		u64	mask
	)

Definition at line 41 of file dma.c.

int dma_supported	(	struct device *	hwdev,
		u64	mask
	)

Definition at line 966 of file dma-mapping.c.

Variable Documentation

struct dma_map_ops* dma_ops

Definition at line 188 of file pci-noop.c.

int iommu_merge

int panic_on_overflow

struct device x86_dma_fallback_dev

Definition at line 51 of file pci-dma.c.