/******************************************************************************
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******************************************************************************/
/*****************************************************************************/
/**
*
* @file xil_cache.h
*
* This header file contains cache related driver functions (or macros)
* that can be used to access the device.  The user should refer to the
* hardware device specification for more details of the device operation.
* The functions in this header file can be used across all Xilinx supported
* processors.
*
* <pre>
* MODIFICATION HISTORY:
*
* Ver   Who  Date     Changes
* ----- ---- -------- -------------------------------------------------------
* 1.00  hbm  07/28/09 Initial release
* 3.02a sdm  10/24/11 Updated the file to include xparameters.h so that
*                     the correct cache flush routines are used based on
*                     whether the write-back or write-through caches are
*                     used (cr #630532).
*
* </pre>
*
* @note
*
* None.
*
******************************************************************************/

#ifndef XIL_CACHE_H
#define XIL_CACHE_H

#if defined XENV_VXWORKS
/* VxWorks environment */
#error "Unknown processor / architecture. Must be PPC for VxWorks."
#else
/* standalone environment */

#include "mb_interface.h"
#include "xil_types.h"
#include "xparameters.h"

#ifdef __cplusplus
extern "C" {
#endif

/****************************************************************************/
/**
*
* Invalidate the entire data cache. If the cacheline is modified (dirty),
* the modified contents are lost.
*
* @param    None.
*    
* @return   None.
*
* @note     
*
* Processor must be in real mode.
****************************************************************************/
#define Xil_DCacheInvalidate() microblaze_invalidate_dcache()


/****************************************************************************/
/**
*
* Invalidate the data cache for the given address range.
* If the bytes specified by the address (Addr) are cached by the data cache, 
* the cacheline containing that byte is invalidated.  If the cacheline 
* is modified (dirty), the modified contents are lost.
*
* @param    Addr is address of ragne to be invalidated.
* @param    Len is the length in bytes to be invalidated.
*    
* @return   None.
*
* @note     
*
* Processor must be in real mode.
****************************************************************************/
#define Xil_DCacheInvalidateRange(Addr, Len) \
        microblaze_invalidate_dcache_range(Addr, Len)

/****************************************************************************/
/**
* Flush the data cache for the given address range.
* If the bytes specified by the address (Addr) are cached by the data cache, 
* and is modified (dirty), the cacheline will be written to system memory.
* The cacheline will also be invalidated.
*
* @param    Addr is the starting address of the range to be flushed.
* @param    Len is the length in byte to be flushed.
*    
* @return   None.
*
****************************************************************************/
#if (XPAR_MICROBLAZE_DCACHE_USE_WRITEBACK == 1)
#   define Xil_DCacheFlushRange(Addr, Len) \
        microblaze_flush_dcache_range(Addr, Len)
#else
#   define Xil_DCacheFlushRange(Addr, Len) \
	microblaze_invalidate_dcache_range(Addr, Len)
#endif /* XPAR_MICROBLAZE_DCACHE_USE_WRITEBACK */

/****************************************************************************/
/**
* Flush the entire data cache. If any cacheline is dirty, the cacheline will be
* written to system memory. The entire data cache will be invalidated.
*
* @return   None.
*
* @note     
*
****************************************************************************/
#if (XPAR_MICROBLAZE_DCACHE_USE_WRITEBACK == 1)
#   define Xil_DCacheFlush() microblaze_flush_dcache()
#else
#   define Xil_DCacheFlush() microblaze_invalidate_dcache()
#endif /* XPAR_MICROBLAZE_DCACHE_USE_WRITEBACK */

/****************************************************************************/
/**
*
* Invalidate the instruction cache for the given address range.
*
* @param    Addr is address of ragne to be invalidated.
* @param    Len is the length in bytes to be invalidated.
*    
* @return   None.
*
****************************************************************************/
#define Xil_ICacheInvalidateRange(Addr, Len) \
        microblaze_invalidate_icache_range(Addr, Len)

/****************************************************************************/
/**
*
* Invalidate the entire instruction cache.
*
* @param    None
*
* @return   None.
*
****************************************************************************/
#define Xil_ICacheInvalidate() \
        microblaze_invalidate_icache()


/****************************************************************************/
/**
*
* Enable the data cache.
*
* @return   None.
*
* @note     This is processor specific.
*
****************************************************************************/
#define Xil_DCacheEnable() \
        microblaze_enable_dcache()

/****************************************************************************/
/**
*
* Enable the instruction cache.
*
* @return   None.
*
* @note     This is processor specific.
*
****************************************************************************/
#define Xil_ICacheEnable() \
        microblaze_enable_icache()

extern void Xil_DCacheDisable(void);
extern void Xil_ICacheDisable(void);

#ifdef __cplusplus
}
#endif

#endif

#endif
