xcache_l.h

实用的程序代码

/*-----------------------------------------------------------------------------
//     $Date: 2002/09/16 21:19:30 $
//     $RCSfile: xcache_l.h,v $
//-----------------------------------------------------------------------------
//
//     XILINX IS PROVIDING THIS DESIGN, CODE, OR INFORMATION "AS IS"
//     SOLELY FOR USE IN DEVELOPING PROGRAMS AND SOLUTIONS FOR
//     XILINX DEVICES.  BY PROVIDING THIS DESIGN, CODE, OR INFORMATION
//     AS ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE, APPLICATION
//     OR STANDARD, XILINX IS MAKING NO REPRESENTATION THAT THIS
//     IMPLEMENTATION IS FREE FROM ANY CLAIMS OF INFRINGEMENT,
//     AND YOU ARE RESPONSIBLE FOR OBTAINING ANY RIGHTS YOU MAY REQUIRE
//     FOR YOUR IMPLEMENTATION.  XILINX EXPRESSLY DISCLAIMS ANY
//     WARRANTY WHATSOEVER WITH RESPECT TO THE ADEQUACY OF THE
//     IMPLEMENTATION, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OR
//     REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE FROM CLAIMS OF
//     INFRINGEMENT, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
//     FOR A PARTICULAR PURPOSE.
//     
//     (c) Copyright 2002 Xilinx, Inc.
//     All rights reserved.
//
//---------------------------------------------------------------------------*/
// Design Notes: 
//  - Processor must be in real mode!
//  - disable_dcache makes assumptions about available memory.
//  - each bit in the regions variable stands for 128MB of memory:
//      regions    --> cached address range
//      ------------|--------------------------------------------------
//      0x80000000  | [0, 0x7FFFFFF]
//      0x00000001  | [0xF8000000, 0xFFFFFFFF]
//      0x80000001  | [0, 0x7FFFFFF],[0xF8000000, 0xFFFFFFFF]
//    
//---------------------------------------------------------------------------*/

#ifndef CACHE_H
#define CACHE_H


void XCache_WriteCCR0(unsigned int val);

void XCache_EnableDCache(unsigned int regions);
void XCache_DisableDCache(void);
void XCache_FlushDCacheLine(unsigned int adr); 
void XCache_StoreDCacheLine(unsigned int adr);

void XCache_EnableICache(unsigned int regions);
void XCache_DisableICache(void);
void XCache_InvalidateICache(void);
void XCache_InvalidateICacheLine(unsigned int adr);

#endif