* ========== Copyright Header Begin ==========================================
* OpenSPARC T2 Processor File: LoadStoreBuffer.h
* Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES.
* The above named program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public
* License version 2 as published by the Free Software Foundation.
* The above named program 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 this work; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
* ========== Copyright Header End ============================================
#ifndef _LOADSTOREBUFFER_H
#define _LOADSTOREBUFFER_H
/************************************************************************
** Copyright (C) 2002, Sun Microsystems, Inc.
** Sun considers its source code as an unpublished, proprietary
** trade secret and it is available only under strict license provisions.
** This copyright notice is placed here only to protect Sun in the event
** the source is deemed a published work. Disassembly, decompilation,
** or other means of reducing the object code to human readable form
** is prohibited by the license agreement under which this code is
** provided to the user or company in possession of this copy."
*************************************************************************/
#include "MemorySyncDefs.h"
#include "LoadStoreCmd.h"
#include "LoadStoreEntry.h"
* @param orig The LoadStoreBuffer object to copy.
LoadStoreBuffer( const LoadStoreBuffer
&orig
);
virtual ~LoadStoreBuffer();
* @param rhs The right hand side of the equality operator
* @return Return true if this objec and rhs are equal,
bool operator==( const LoadStoreBuffer
&rhs
) const;
* @param rhs The right hand side of the assignment operator.
* @return The lvalue of the assignment.
const LoadStoreBuffer
& operator=( const LoadStoreBuffer
&rhs
);
* Return a string representation of this LoadStoreBuffer object.
std::string
toString() const;
void setBufName (char* name
) { strcpy (bufName_
, name
); }
char* getBufName () { return bufName_
; }
void insert (LoadStoreCmd
& cmd
);
std::list
<LoadStoreEntry
>::iterator
pushBack(LoadStoreEntry
& cmd
);
void erase(std::list
<LoadStoreEntry
>::iterator ii
);
void popBack(int count
=1);
std::list
<LoadStoreEntry
>::iterator
findMatchY2O(uint64_t addr
, uint8_t size_vector
);
std::list
<LoadStoreEntry
>::iterator
findMatchY2O(uint64_t id
, uint64_t addr
, uint8_t size_vector
);
std::list
<LoadStoreEntry
>::iterator
findMatchO2Y(uint64_t addr
, uint8_t size_vector
);
std::list
<LoadStoreEntry
>::iterator
findMatchO2Y(uint64_t id
, uint64_t addr
, uint8_t size_vector
);
std::list
<LoadStoreEntry
>::iterator
findMatchO2Y(uint64_t addr
, enum LS_ENTRY_STATE state
, uint64_t addrMask
);
std::list
<LoadStoreEntry
>::iterator
findMatchO2Y(uint64_t addr
);
std::list
<LoadStoreEntry
>::iterator
findNotIssuedO2Y(uint64_t addr
);
std::list
<LoadStoreEntry
>::iterator
find1stNonExe();
std::list
<LoadStoreEntry
>::iterator
find1stNonExeMatchedAddr(uint64_t addr
);
std::list
<LoadStoreEntry
>::iterator
find1stNonExeOrMatchedAddrAtomic(uint64_t addr
);
std::list
<LoadStoreEntry
>::iterator
findNeedTDataO2Y(uint64_t addr
);
* Method to find data bypassing
* This method attempts to find matched entry that satisfies the data access request.
* Note that the search is from back to front, i.e., young to old.
* The rule of searching is <br>
* - partial fulfill the request, return buf_.end()
* - fully comply with the request, return the matched entry's iterator
* @param addr address to be matched, the 3 least significant bits are ignored
* @param size_vector valid bytes of data to ask
* @return entry iterator that satisfies the request; otherwise, return buf_.end()
std::list
<LoadStoreEntry
>::iterator
findDataBypassing (uint64_t addr
, uint8_t size_vector
);
std::list
<LoadStoreEntry
>::iterator
findN2DataBypassing (uint64_t addr
, uint8_t size_vector
);
std::list
<LoadStoreEntry
>::iterator
findMatchO2Y(uint64_t addr
, bool rmo
, uint64_t addrMask
);
std::list
<LoadStoreEntry
>::iterator
LoadStoreBuffer::find1stNonExeFetch(uint64_t addr
);
std::list
<LoadStoreEntry
>::iterator
find1stNoLink(uint64_t id
, uint64_t addr
, uint64_t addrMask
);
std::list
<LoadStoreEntry
>::reference
front() { return buf_
.front(); }
std::list
<LoadStoreEntry
>::iterator
end() { return buf_
.end(); }
std::list
<LoadStoreEntry
>::iterator
begin() { return buf_
.begin(); }
std::list
<LoadStoreEntry
>::size_type
size() { return buf_
.size(); }
std::list
<LoadStoreEntry
>* getBufPtr() { return &buf_
; }
std::list
<LoadStoreEntry
>::iterator
queryBack();
std::list
<LoadStoreEntry
> buf_
;
#endif /* _LOADSTOREBUFFER_H */