diff options
Diffstat (limited to 'drivers/staging/tidspbridge/include/dspbridge/dmm.h')
-rw-r--r-- | drivers/staging/tidspbridge/include/dspbridge/dmm.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/drivers/staging/tidspbridge/include/dspbridge/dmm.h b/drivers/staging/tidspbridge/include/dspbridge/dmm.h new file mode 100644 index 000000000000..6c58335c5f60 --- /dev/null +++ b/drivers/staging/tidspbridge/include/dspbridge/dmm.h @@ -0,0 +1,75 @@ +/* + * 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_ */ |