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/*
* bvinternal.h
*
* Copyright (C) 2011 Texas Instruments, Inc.
*
* This file is part of BLTsville, an open application programming interface
* (API) for accessing 2-D software or hardware implementations.
*
* This work is licensed under the Creative Commons Attribution-NoDerivs 3.0
* Unported License. To view a copy of this license, visit
* http://creativecommons.org/licenses/by-nd/3.0/ or send a letter to
* Creative Commons, 444 Castro Street, Suite 900, Mountain View, California,
* 94041, USA.
*/
/*
* 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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