65 lines
2.2 KiB
ArmAsm
65 lines
2.2 KiB
ArmAsm
/* cache_s.s - cache manipulation */
|
|
|
|
/*
|
|
* Copyright (c) 2013-2014 Wind River Systems, Inc.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1) Redistributions of source code must retain the above copyright notice,
|
|
* this list of conditions and the following disclaimer.
|
|
*
|
|
* 2) Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
*
|
|
* 3) Neither the name of Wind River Systems nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software without
|
|
* specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
/*
|
|
DESCRIPTION
|
|
This module contains functions for manipulating caches.
|
|
*/
|
|
|
|
#ifndef CONFIG_CLFLUSH_INSTRUCTION_SUPPORTED
|
|
|
|
#define _ASMLANGUAGE
|
|
#include <nanokernel/x86/asm.h>
|
|
|
|
/* externs (internal APIs) */
|
|
GTEXT(_SysCacheFlush)
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* _SysCacheFlush - flush a page to main memory
|
|
*
|
|
* This implementation flushes the whole cache.
|
|
*
|
|
* C signature:
|
|
*
|
|
* void _SysCacheFlush (VIRT_ADDR virt, size_t size)
|
|
*
|
|
* Both parameters are ignored in this implementation.
|
|
*
|
|
* RETURNS: N/A
|
|
*/
|
|
|
|
SECTION_FUNC(TEXT, _SysCacheFlush)
|
|
wbinvd
|
|
ret
|
|
|
|
#endif /* !CONFIG_CLFLUSH_INSTRUCTION_SUPPORTED */
|