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/*
* dmm.h
*
* DSP-BIOS Bridge driver support functions for TI OMAP processors.
*
* The Dynamic Memory Mapping(DMM) module manages the DSP Virtual address
* space that can be directly mapped to any MPU buffer or memory region.
*
* Copyright (C) 2005-2006 Texas Instruments, Inc.
*
* This package is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#ifndef DMM_
#define DMM_
#include <dspbridge/dbdefs.h>
struct dmm_object;
/* DMM attributes used in dmm_create() */
struct dmm_mgrattrs {
u32 reserved;
};
#define DMMPOOLSIZE 0x4000000
/*
* ======== dmm_get_handle ========
* Purpose:
* Return the dynamic memory manager object for this device.
* This is typically called from the client process.
*/
extern int dmm_get_handle(void *hprocessor,
struct dmm_object **dmm_manager);
extern int dmm_reserve_memory(struct dmm_object *dmm_mgr,
u32 size, u32 *prsv_addr);
extern int dmm_un_reserve_memory(struct dmm_object *dmm_mgr,
u32 rsv_addr);
extern int dmm_map_memory(struct dmm_object *dmm_mgr, u32 addr,
u32 size);
extern int dmm_un_map_memory(struct dmm_object *dmm_mgr,
u32 addr, u32 *psize);
extern int dmm_destroy(struct dmm_object *dmm_mgr);
extern int dmm_delete_tables(struct dmm_object *dmm_mgr);
extern int dmm_create(struct dmm_object **dmm_manager,
struct dev_object *hdev_obj,
const struct dmm_mgrattrs *mgr_attrts);
extern bool dmm_init(void);
extern void dmm_exit(void);
extern int dmm_create_tables(struct dmm_object *dmm_mgr,
u32 addr, u32 size);
#ifdef DSP_DMM_DEBUG
u32 dmm_mem_map_dump(struct dmm_object *dmm_mgr);
#endif
#endif /* DMM_ */
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