dma.c File Reference

#include <linux/init.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
#include <linux/dmaengine.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/workqueue.h>
#include <linux/prefetch.h>
#include <linux/i7300_idle.h>
#include "dma.h"
#include "registers.h"
#include "hw.h"
#include "../dmaengine.h"

Go to the source code of this file.

Macros
#define	IOAT_TEST_SIZE   2000

Functions
	module_param (ioat_pending_level, int, 0644)
	MODULE_PARM_DESC (ioat_pending_level,"high-water mark for pushing ioat descriptors (default: 4)")
void	ioat_init_channel (struct ioatdma_device *device, struct ioat_chan_common *chan, int idx)
	module_param (ioat_initial_desc_count, int, 0644)
	MODULE_PARM_DESC (ioat_initial_desc_count,"ioat1: initial descriptors per channel (default: 256)")
void	ioat_dma_unmap (struct ioat_chan_common *chan, enum dma_ctrl_flags flags, size_t len, struct ioat_dma_descriptor *hw)
dma_addr_t	ioat_get_current_completion (struct ioat_chan_common *chan)
bool	ioat_cleanup_preamble (struct ioat_chan_common *chan, dma_addr_t *phys_complete)
enum dma_status	ioat_dma_tx_status (struct dma_chan *c, dma_cookie_t cookie, struct dma_tx_state *txstate)
int __devinit	ioat_dma_self_test (struct ioatdma_device *device)
	module_param_string (ioat_interrupt_style, ioat_interrupt_style, sizeof(ioat_interrupt_style), 0644)
	MODULE_PARM_DESC (ioat_interrupt_style,"set ioat interrupt style: msix (default), ""msix-single-vector, msi, intx)")
int __devinit	ioat_probe (struct ioatdma_device *device)
int __devinit	ioat_register (struct ioatdma_device *device)
void	ioat_kobject_add (struct ioatdma_device *device, struct kobj_type *type)
void	ioat_kobject_del (struct ioatdma_device *device)
int __devinit	ioat1_dma_probe (struct ioatdma_device *device, int dca)
void __devexit	ioat_dma_remove (struct ioatdma_device *device)

Variables
int	ioat_pending_level = 4
struct ioat_sysfs_entry	ioat_cap_attr = __ATTR_RO(cap)
struct ioat_sysfs_entry	ioat_version_attr = __ATTR_RO(version)
struct sysfs_ops	ioat_sysfs_ops

Macro Definition Documentation

#define IOAT_TEST_SIZE   2000

Definition at line 783 of file dma.c.

Function Documentation

int __devinit ioat1_dma_probe	(	struct ioatdma_device *	device,
		int	dca
	)

Definition at line 1186 of file dma.c.

bool ioat_cleanup_preamble	(	struct ioat_chan_common *	chan,
		dma_addr_t *	phys_complete
	)

Definition at line 571 of file dma.c.

void __devexit ioat_dma_remove

(

struct ioatdma_device *

device

)

Definition at line 1219 of file dma.c.

int __devinit ioat_dma_self_test

(

struct ioatdma_device *

device

)

ioat_dma_self_test - Perform a IOAT transaction to verify the HW works. : device to be tested

Definition at line 796 of file dma.c.

enum dma_status ioat_dma_tx_status	(	struct dma_chan *	c,
		dma_cookie_t	cookie,
		struct dma_tx_state *	txstate
	)

Definition at line 728 of file dma.c.

void ioat_dma_unmap	(	struct ioat_chan_common *	chan,
		enum dma_ctrl_flags	flags,
		size_t	len,
		struct ioat_dma_descriptor *	hw
	)

Definition at line 534 of file dma.c.

dma_addr_t ioat_get_current_completion

(

struct ioat_chan_common *

chan

)

Definition at line 549 of file dma.c.

void ioat_init_channel	(	struct ioatdma_device *	device,
		struct ioat_chan_common *	chan,
		int	idx
	)

Definition at line 102 of file dma.c.

void ioat_kobject_add	(	struct ioatdma_device *	device,
		struct kobj_type *	type
	)

Definition at line 1151 of file dma.c.

void ioat_kobject_del

(

struct ioatdma_device *

device

)

Definition at line 1171 of file dma.c.

int __devinit ioat_probe

(

struct ioatdma_device *

device

)

Definition at line 997 of file dma.c.

int __devinit ioat_register

(

struct ioatdma_device *

device

)

Definition at line 1052 of file dma.c.

module_param	(	ioat_pending_level	,
		int	,
		0644
	)

module_param	(	ioat_initial_desc_count	,
		int	,
		0644
	)

module_param_string	(	ioat_interrupt_style	,
		ioat_interrupt_style	,
		sizeof(ioat_interrupt_style)	,
		0644
	)

MODULE_PARM_DESC	(	ioat_pending_level	,
		"high-water mark for pushing ioat descriptors (default: 4)"
	)

MODULE_PARM_DESC	(	ioat_initial_desc_count	,
		"ioat1: initial descriptors per channel (default: 256)"
	)

MODULE_PARM_DESC	(	ioat_interrupt_style	,
		"set ioat interrupt style: msix	default,
		""msix-single-	vector,
		msi	,
		intx
	)

Variable Documentation

struct ioat_sysfs_entry ioat_cap_attr = __ATTR_RO(cap)

Definition at line 1108 of file dma.c.

int ioat_pending_level = 4

Definition at line 45 of file dma.c.

struct sysfs_ops ioat_sysfs_ops

Initial value:

= {
    .show   = ioat_attr_show,
}

Definition at line 1142 of file dma.c.

struct ioat_sysfs_entry ioat_version_attr = __ATTR_RO(version)

Definition at line 1118 of file dma.c.