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/*
* bvinternal.h
*
* Copyright (C) 2011 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.
*/
/*
* This file contains definitions used by implementations of BLTsville
* 2-D libraries. It should not be used by clients.
*/
#ifndef BVINTERNAL_H
#define BVINTENRAL_H
/*
* bvbuffmap - The bvbuffmap structure is used to track resources
* associated with a buffer, such as a h/w MMU entry. The implementations
* add bvbuffmap objects when they allocate the resources. Then when a
* buffer is accessed, the implementations can regain access to the
* associated resources. The implementations allocate and populate this
* structure when a bv_map() call is made. It is used in subsequent
* bv_blt() and bv_unmap() calls. The latter frees the associated resource
* and the structure (if applicable). Note that a given resource might be
* used by more than one implementation.
*/
struct bvbuffmap {
unsigned int structsize; /* used to ID structure ver */
/* function to unmap this resource */
BVFN_UNMAP bv_unmap;
unsigned long handle; /* resource-specific info */
/* pointer to next resource mapping structure */
struct bvbuffmap *nextmap;
};
#endif /* BVINTERNAL_H */
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