dma.c File Reference

#include <linux/device.h>
#include <linux/dma-mapping.h>
#include <linux/dma-debug.h>
#include <linux/gfp.h>
#include <linux/memblock.h>
#include <linux/export.h>
#include <linux/pci.h>
#include <asm/vio.h>
#include <asm/bug.h>
#include <asm/machdep.h>

Go to the source code of this file.

Macros
#define	PREALLOC_DMA_DEBUG_ENTRIES   (1 << 16)

Functions
void *	dma_direct_alloc_coherent (struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag, struct dma_attrs *attrs)
void	dma_direct_free_coherent (struct device *dev, size_t size, void *vaddr, dma_addr_t dma_handle, struct dma_attrs *attrs)
int	dma_direct_mmap_coherent (struct device *dev, struct vm_area_struct *vma, void *cpu_addr, dma_addr_t handle, size_t size, struct dma_attrs *attrs)
	EXPORT_SYMBOL (dma_direct_ops)
int	dma_set_mask (struct device *dev, u64 dma_mask)
	EXPORT_SYMBOL (dma_set_mask)
u64	dma_get_required_mask (struct device *dev)
	EXPORT_SYMBOL_GPL (dma_get_required_mask)
	fs_initcall (dma_init)

Variables
struct dma_map_ops	dma_direct_ops

Macro Definition Documentation

#define PREALLOC_DMA_DEBUG_ENTRIES   (1 << 16)

Definition at line 192 of file dma.c.

Function Documentation

void* dma_direct_alloc_coherent	(	struct device *	dev,
		size_t	size,
		dma_addr_t *	dma_handle,
		gfp_t	flag,
		struct dma_attrs *	attrs
	)

Definition at line 29 of file dma.c.

void dma_direct_free_coherent	(	struct device *	dev,
		size_t	size,
		void *	vaddr,
		dma_addr_t	dma_handle,
		struct dma_attrs *	attrs
	)

Definition at line 58 of file dma.c.

int dma_direct_mmap_coherent	(	struct device *	dev,
		struct vm_area_struct *	vma,
		void *	cpu_addr,
		dma_addr_t	handle,
		size_t	size,
		struct dma_attrs *	attrs
	)

Definition at line 69 of file dma.c.

u64 dma_get_required_mask

(

struct device *

dev

)

Definition at line 209 of file dma.c.

int dma_set_mask	(	struct device *	dev,
		u64	dma_mask
	)

Definition at line 194 of file dma.c.

EXPORT_SYMBOL

(

dma_direct_ops

)

EXPORT_SYMBOL

(

dma_set_mask

)

EXPORT_SYMBOL_GPL

(

dma_get_required_mask

)

fs_initcall

(

dma_init

)

Variable Documentation

struct dma_map_ops dma_direct_ops

Initial value:

= {
    .alloc              = dma_direct_alloc_coherent,
    .free               = dma_direct_free_coherent,
    .mmap               = dma_direct_mmap_coherent,
    .map_sg             = dma_direct_map_sg,
    .unmap_sg           = dma_direct_unmap_sg,
    .dma_supported          = dma_direct_dma_supported,
    .map_page           = dma_direct_map_page,
    .unmap_page         = dma_direct_unmap_page,
    .get_required_mask      = dma_direct_get_required_mask,






}

Definition at line 173 of file dma.c.