dma_queue.c File Reference

#include <linux/io.h>
#include <linux/atomic.h>
#include <linux/module.h>
#include <gxio/dma_queue.h>

Go to the source code of this file.

Data Structures
union	__gxio_ring_t

Macros
#define	wait_for_value(val)   __asm__ __volatile__("move %0, %0" :: "r"(val))
#define	DMA_QUEUE_INDEX_MASK   ((1 << 16) - 1)

Functions
void	__gxio_dma_queue_init (__gxio_dma_queue_t *dma_queue, void *post_region_addr, unsigned int num_entries)
	EXPORT_SYMBOL_GPL (__gxio_dma_queue_init)
void	__gxio_dma_queue_update_credits (__gxio_dma_queue_t *dma_queue)
	EXPORT_SYMBOL_GPL (__gxio_dma_queue_update_credits)
int64_t	__gxio_dma_queue_wait_for_credits (__gxio_dma_queue_t *dma_queue, int64_t modifier)
	EXPORT_SYMBOL_GPL (__gxio_dma_queue_wait_for_credits)
int64_t	__gxio_dma_queue_reserve_aux (__gxio_dma_queue_t *dma_queue, unsigned int num, int wait)
	EXPORT_SYMBOL_GPL (__gxio_dma_queue_reserve_aux)
int	__gxio_dma_queue_is_complete (__gxio_dma_queue_t *dma_queue, int64_t completion_slot, int update)
	EXPORT_SYMBOL_GPL (__gxio_dma_queue_is_complete)

Macro Definition Documentation

#define DMA_QUEUE_INDEX_MASK   ((1 << 16) - 1)

Definition at line 25 of file dma_queue.c.

#define wait_for_value

(

val

)

__asm__ __volatile__("move %0, %0" :: "r"(val))

Definition at line 21 of file dma_queue.c.

Function Documentation

void __gxio_dma_queue_init	(	__gxio_dma_queue_t *	dma_queue,
		void *	post_region_addr,
		unsigned int	num_entries
	)

Definition at line 50 of file dma_queue.c.

int __gxio_dma_queue_is_complete	(	__gxio_dma_queue_t *	dma_queue,
		int64_t	completion_slot,
		int	update
	)

Definition at line 162 of file dma_queue.c.

int64_t __gxio_dma_queue_reserve_aux	(	__gxio_dma_queue_t *	dma_queue,
		unsigned int	num,
		int	wait
	)

Definition at line 154 of file dma_queue.c.

void __gxio_dma_queue_update_credits

(

__gxio_dma_queue_t *

dma_queue

)

Definition at line 68 of file dma_queue.c.

int64_t __gxio_dma_queue_wait_for_credits	(	__gxio_dma_queue_t *	dma_queue,
		int64_t	modifier
	)

Definition at line 127 of file dma_queue.c.

EXPORT_SYMBOL_GPL

(

__gxio_dma_queue_init

)

EXPORT_SYMBOL_GPL

(

__gxio_dma_queue_update_credits

)

EXPORT_SYMBOL_GPL

(

__gxio_dma_queue_wait_for_credits

)

EXPORT_SYMBOL_GPL

(

__gxio_dma_queue_reserve_aux

)

EXPORT_SYMBOL_GPL

(

__gxio_dma_queue_is_complete

)