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/*
* bmm_lib.h
*
* Buffer Management Module
*
* User level BMM Defines/Globals/Functions
*
* Li Li (lea.li@marvell.com)
*(C) Copyright 2007 Marvell International Ltd.
* All Rights Reserved
*/
#if !defined (__BMM_LIB_H__)
#define __BMM_LIB_H__
/* ioctl arguments: memory attributes */
#define BMM_ATTR_DEFAULT (0) /* cacheable bufferable */
#define BMM_ATTR_WRITECOMBINE (1 << 0) /* non-cacheable & bufferable */
#define BMM_ATTR_NONCACHED (1 << 1) /* non-cacheable & non-bufferable */
/* Note: extra attributes below are not supported yet! */
#define BMM_ATTR_HUGE_PAGE (1 << 2) /* 64KB page size */
#define BMM_ATTR_WRITETHROUGH (1 << 3) /* implies L1 Cacheable */
#define BMM_ATTR_L2_CACHEABLE (1 << 4) /* implies L1 Cacheable */
/* obsolete */
#define BMM_ATTR_NONBUFFERABLE (1 << 5) /* non-bufferable */
#define BMM_ATTR_NONCACHEABLE (1 << 6) /* non-cacheable */
/* ioctl arguments: cache flush direction */
#define BMM_DMA_BIDIRECTIONAL (0) /* DMA_BIDIRECTIONAL */
#define BMM_DMA_TO_DEVICE (1) /* DMA_TO_DEVICE */
#define BMM_DMA_FROM_DEVICE (2) /* DMA_FROM_DEVICE */
#define BMM_DMA_NONE (3) /* DMA_NONE */
#if defined (__cplusplus)
extern "C" {
#endif
int bmm_init(void);
void bmm_exit(void);
int bmm_dmabuf_alloc(unsigned long size, int attr, unsigned align);
void *bmm_dmabuf_map(int fd, unsigned offset, unsigned size);
void bmm_dmabuf_unmap(void *addr);
int bmm_dmabuf_flush(int fd, void *addr, unsigned offset, unsigned size, unsigned direction);
int bmm_dmabuf_fd(void *addr);
void bmm_dmabuf_free(int fd);
#if defined (__cplusplus)
}
#endif
#endif /* __BMM_LIB_H__ */
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