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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);
void *bmm_malloc(unsigned long size, int attr);
void *bmm_malloc_aligned(unsigned long size, int attr, unsigned align);
void *bmm_malloc_aligned_phys(unsigned long size, int attr, unsigned align,
unsigned long *paddr);
void bmm_free(void *vaddr);
void *bmm_attach(unsigned long paddr, unsigned long len);
void bmm_detach(void *vaddr, unsigned long len);
void *bmm_get_vaddr(unsigned long paddr);
unsigned long bmm_get_paddr(void *vaddr);
int bmm_get_dmabuf_fd(void *vaddr);
int bmm_get_phys_dmabuf_fd(unsigned long paddr);
int bmm_get_mem_attr(void *vaddr);
int bmm_set_mem_attr(void *vaddr, int attr); /* Not supported yet */
unsigned long bmm_get_mem_size(void *vaddr);
unsigned long bmm_get_total_space(void);
unsigned long bmm_get_free_space(void);
unsigned long bmm_get_allocated_space(void);
void bmm_flush_cache(void *vaddr, int dir);
void bmm_flush_cache_range(void *start, size_t size, int direction);
void bmm_flush_user(void *start, long size, int direction);
void bmm_dump(void); /* for debugging */
#if defined (__cplusplus)
}
#endif
#endif /* __BMM_LIB_H__ */
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