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[/] [openrisc/] [trunk/] [rtos/] [ecos-3.0/] [packages/] [hal/] [cortexm/] [a2fxxx/] [var/] [current/] [include/] [hal_cache.h] - Rev 786

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#ifndef CYGONCE_HAL_CACHE_H
#define CYGONCE_HAL_CACHE_H
 
//=============================================================================
//
//      hal_cache.h
//
//      HAL cache control API
//
//=============================================================================
// ####ECOSGPLCOPYRIGHTBEGIN####                                            
// -------------------------------------------                              
// This file is part of eCos, the Embedded Configurable Operating System.   
// Copyright (C) 2011 Free Software Foundation, Inc.
//
// eCos is free software; you can redistribute it and/or modify it under    
// the terms of the GNU General Public License as published by the Free     
// Software Foundation; either version 2 or (at your option) any later      
// version.                                                                 
//
// eCos is distributed in the hope that it will be useful, but WITHOUT      
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or    
// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License    
// for more details.                                                        
//
// You should have received a copy of the GNU General Public License        
// along with eCos; if not, write to the Free Software Foundation, Inc.,    
// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.            
//
// As a special exception, if other files instantiate templates or use      
// macros or inline functions from this file, or you compile this file      
// and link it with other works to produce a work based on this file,       
// this file does not by itself cause the resulting work to be covered by   
// the GNU General Public License. However the source code for this file    
// must still be made available in accordance with section (3) of the GNU   
// General Public License v2.                                               
//
// This exception does not invalidate any other reasons why a work based    
// on this file might be covered by the GNU General Public License.         
// -------------------------------------------                              
// ####ECOSGPLCOPYRIGHTEND####                                              
//=============================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s):    jlarmour
// Contributors: 
// Date:         2011-00-03
// Purpose:      Cache control API
// Description:  The macros defined here provide the HAL APIs for handling
//               cache control operations.
//
//               For the Atcel SmartFusion, these are empty macros as there
//               is no cache.
// Usage:
//               #include <cyg/hal/hal_cache.h>
//               ...
//              
//
//####DESCRIPTIONEND####
//
//=============================================================================
 
#include <cyg/infra/cyg_type.h>
 
//-----------------------------------------------------------------------------
// Cache dimensions
 
 
//-----------------------------------------------------------------------------
// Global control of data cache
 
// Enable the data cache
#define HAL_DCACHE_ENABLE()
 
// Disable the data cache
#define HAL_DCACHE_DISABLE()
 
// Invalidate the entire cache
#define HAL_DCACHE_INVALIDATE_ALL()
 
// Synchronize the contents of the cache with memory.
#define HAL_DCACHE_SYNC()
 
// Purge contents of data cache
#define HAL_DCACHE_PURGE_ALL()
 
// Query the state of the data cache (does not affect the caching)
#define HAL_DCACHE_IS_ENABLED(_state_)          \
    CYG_MACRO_START                             \
    (_state_) = 0;                              \
    CYG_MACRO_END
 
//-----------------------------------------------------------------------------
// Global control of Instruction cache
 
// Enable the instruction cache
#define HAL_ICACHE_ENABLE()
 
// Disable the instruction cache
#define HAL_ICACHE_DISABLE()
 
// Invalidate the entire cache
#define HAL_ICACHE_INVALIDATE_ALL()
 
// Synchronize the contents of the cache with memory.
#define HAL_ICACHE_SYNC()
 
// Query the state of the instruction cache (does not affect the caching)
#define HAL_ICACHE_IS_ENABLED(_state_)          \
    CYG_MACRO_START                             \
    (_state_) = 0;                              \
    CYG_MACRO_END
 
//-----------------------------------------------------------------------------
#endif // ifndef CYGONCE_HAL_CACHE_H
// End of hal_cache.h
 

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