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#ifndef CYGONCE_HAL_CACHE_H
#define CYGONCE_HAL_CACHE_H
 
//=============================================================================
//
//      hal_cache.h
//
//      HAL cache control API
//
//=============================================================================
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//
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// General Public License v2.                                               
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//=============================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s):   larsi
// Contributors:
// Date:        2008-07-09
// Purpose:     Cache control API
// Description: The macros defined here provide the HAL APIs for handling
//              cache control operations.
// Usage:       #include <cyg/hal/hal_cache.h>
//
//####DESCRIPTIONEND####
//
//=============================================================================
#include <pkgconf/hal.h>
#include <cyg/infra/cyg_type.h>
 
#include <cyg/hal/var_cache.h>
 
//-----------------------------------------------------------------------------
// Cache dimensions
 
// FR30 only has an instruction cache, so data cache macros are empty
#ifndef HAL_DCACHE_SIZES_DEFINED
#define HAL_DCACHE_SIZE                 0       // Size of cache in bytes
#define HAL_DCACHE_LINE_SIZE            16      // Size of a cache line
#define HAL_DCACHE_WAYS                 2       // Associativity of the cache
 
#define HAL_DCACHE_SETS (HAL_DCACHE_SIZE/(HAL_DCACHE_LINE_SIZE*HAL_DCACHE_WAYS))
#endif
 
#ifndef HAL_ICACHE_SIZES_DEFINED
#define HAL_ICACHE_SIZE                 4096    // Size of cache in bytes
#define HAL_ICACHE_LINE_SIZE            16      // Size of a cache line
#define HAL_ICACHE_WAYS                 2       // Associativity of the cache
 
#define HAL_ICACHE_SETS (HAL_ICACHE_SIZE/(HAL_ICACHE_LINE_SIZE*HAL_ICACHE_WAYS))
#endif
//-----------------------------------------------------------------------------
// Global control of the data cache
// FR30 only has an instruction cache, so data cache macros are empty
 
// Enable the cache
#ifndef HAL_DCACHE_ENABLE_DEFINED
#define HAL_DCACHE_ENABLE()
#endif
 
// Disable the cache
#ifndef HAL_DCACHE_DISABLE_DEFINED
#define HAL_DCACHE_DISABLE()
#endif
 
// Query the state of the cache
#ifndef HAL_DCACHE_IS_ENABLED_DEFINED
#define HAL_DCACHE_IS_ENABLED(_state_) \
CYG_MACRO_START                        \
_state_ = 1;	                       \
CYG_MACRO_END
#endif
 
// Invalidate the entire cache
#ifndef HAL_DCACHE_INVALIDATE_ALL_DEFINED
#define HAL_DCACHE_INVALIDATE_ALL()
#endif
 
// Synchronize the contents of the cache to the memory
#ifndef HAL_DCACHE_SYNC_DEFINED
#define HAL_DCACHE_SYNC()
#endif
 
// Locks entry in the cache
#ifndef HAL_DCACHE_LOCK_DEFINED
#define HAL_DCACHE_LOCK(_base_, _size_)
#endif
 
// Unlocks entry in the cache
#ifndef HAL_DCACHE_UNLOCK_DEFINED
#define HAL_DCACHE_UNLOCK(_base_, _size_)
#endif
 
// Unlocks the whole cache.
#ifndef HAL_DCACHE_UNLOCK_ALL_DEFINED
#define HAL_DCACHE_UNLOCK_ALL()
#endif
 
//-----------------------------------------------------------------------------
// Global control of the instruction cache
 
// Enable the cache
#ifndef HAL_ICACHE_ENABLE_DEFINED
#define HAL_ICACHE_ENABLE()
#endif
 
// Disable the cache
#ifndef HAL_ICACHE_DISABLE_DEFINED
#define HAL_ICACHE_DISABLE()
#endif
 
// Query the state of the cache
#ifndef HAL_ICACHE_IS_ENABLED_DEFINED
#define HAL_ICACHE_IS_ENABLED(_state_) \
CYG_MACRO_START                        \
_state_ = 1;                           \
CYG_MACRO_END
#endif
 
// Invalidate the entire cache
#ifndef HAL_ICACHE_INVALIDATE_ALL_DEFINED
#define HAL_ICACHE_INVALIDATE_ALL()
#endif
 
// Synchronize the contents of the cache to the memory.
#ifndef HAL_ICACHE_SYNC_DEFINED
#define HAL_ICACHE_SYNC()
#endif
 
// Locks entry in the cache, fr30 architecture does not support locking specifc
// regions, so _base_ and _size are ignored and the whole cache is locked.
// During cache lock only valid entries are locked. Invalid entries are updated.
#ifndef HAL_ICACHE_LOCK_DEFINED
#define HAL_ICACHE_LOCK(_base_, _size_)
#endif
 
// Unlocks entry in the cache. fr30 architecture does not support locking specifc
// regions, so _base_ and _size are ignored and the whole cache is unlocked.
#ifndef HAL_ICACHE_UNLOCK_DEFINED
#define HAL_ICACHE_UNLOCK(_base_, _size_)
#endif
 
// Unlocks the whole cache.
#ifndef HAL_ICACHE_UNLOCK_ALL_DEFINED
#define HAL_ICACHE_UNLOCK_ALL()
#endif
 
//-----------------------------------------------------------------------------
#endif // ifndef CYGONCE_HAL_CACHE_H
// End of hal_cache.h