var_cache.h

来自「eCos操作系统源码」· C头文件 代码 · 共 81 行

#ifndef CYGONCE_VAR_CACHE_H
#define CYGONCE_VAR_CACHE_H

//=============================================================================
//
//      var_cache.h
//
//      HAL cache control API
//
//=============================================================================
//####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, 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.,
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 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.
//
// This exception does not invalidate any other reasons why a work based on
// this file might be covered by the GNU General Public License.
//
// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
// at http://sources.redhat.com/ecos/ecos-license/
// -------------------------------------------
//####ECOSGPLCOPYRIGHTEND####
//=============================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s):    nickg
// Contributors: nickg,jlarmour
// Date:         2001-03-21
// Purpose:      Cache control API
// Description:  The macros defined here provide the HAL APIs for handling
//               cache control operations.
// Usage:
//               #include <cyg/hal/var_cache.h>
//               ...
//              
//
//####DESCRIPTIONEND####
//
//=============================================================================

#include <cyg/hal/plf_cache.h>

// No caches defined in this variant by default
#ifndef HAL_ICACHE_ENABLE
# define HAL_ICACHE_ENABLE()
# define HAL_ICACHE_DISABLE()
# define HAL_ICACHE_SYNC()
# define HAL_ICACHE_INVALIDATE_ALL()
#endif

#ifndef HAL_DCACHE_ENABLE
# define HAL_DCACHE_ENABLE()
# define HAL_DCACHE_DISABLE()
# define HAL_DCACHE_SYNC()
# define HAL_DCACHE_INVALIDATE_ALL()
#endif

//-----------------------------------------------------------------------------
#endif // ifndef CYGONCE_VAR_CACHE_H
// End of var_cache.h