b6b972da99
The eventual aim of this change is to pass RubySystem pointers through to objects generated from the SLICC protocol code. Because some of these objects need to dereference their RubySystem pointers, they need access to the System.hh header file. In src/mem/ruby/SConscript, the MakeInclude function creates single-line header files in the build directory that do nothing except include the corresponding header file from the source tree. However, SLICC also generates a list of header files from its symbol table, and writes it to mem/protocol/Types.hh in the build directory. This code assumes that the header file name is the same as the class name. The end result of this is the many of the generated slicc files try to include RubySystem.hh, when the file they really need is System.hh. The path of least resistence is just to rename System.hh to RubySystem.hh. --HG-- rename : src/mem/ruby/system/System.cc => src/mem/ruby/system/RubySystem.cc rename : src/mem/ruby/system/System.hh => src/mem/ruby/system/RubySystem.hh
79 lines
2.7 KiB
C++
79 lines
2.7 KiB
C++
/*
|
|
* Copyright (c) 2012 Advanced Micro Devices, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are
|
|
* met: redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer;
|
|
* 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;
|
|
* neither the name of the copyright holders 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
|
|
* OWNER 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.
|
|
*
|
|
* Author: Brad Beckmann
|
|
*
|
|
*/
|
|
|
|
#ifndef __MEM_RUBY_STRUCTURES_BANKEDARRAY_HH__
|
|
#define __MEM_RUBY_STRUCTURES_BANKEDARRAY_HH__
|
|
|
|
#include <vector>
|
|
|
|
#include "mem/ruby/common/TypeDefines.hh"
|
|
#include "mem/ruby/system/RubySystem.hh"
|
|
#include "sim/core.hh"
|
|
|
|
class BankedArray
|
|
{
|
|
private:
|
|
unsigned int banks;
|
|
Cycles accessLatency;
|
|
unsigned int bankBits;
|
|
unsigned int startIndexBit;
|
|
RubySystem *m_ruby_system;
|
|
|
|
class AccessRecord
|
|
{
|
|
public:
|
|
AccessRecord() : idx(0), startAccess(0), endAccess(0) {}
|
|
int64_t idx;
|
|
Tick startAccess;
|
|
Tick endAccess;
|
|
};
|
|
|
|
// If the tick event is scheduled then the bank is busy
|
|
// otherwise, schedule the event and wait for it to complete
|
|
std::vector<AccessRecord> busyBanks;
|
|
|
|
unsigned int mapIndexToBank(int64_t idx);
|
|
|
|
public:
|
|
BankedArray(unsigned int banks, Cycles accessLatency,
|
|
unsigned int startIndexBit, RubySystem *rs);
|
|
|
|
// Note: We try the access based on the cache index, not the address
|
|
// This is so we don't get aliasing on blocks being replaced
|
|
bool tryAccess(int64_t idx);
|
|
|
|
void reserve(int64_t idx);
|
|
|
|
Cycles getLatency() const { return accessLatency; }
|
|
};
|
|
|
|
#endif
|