129 lines
4.2 KiB
C++
129 lines
4.2 KiB
C++
/*
|
|
* Copyright (c) 2023, RPTU Kaiserslautern-Landau
|
|
* All rights reserved.
|
|
*
|
|
* 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 the copyright holder 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.
|
|
*
|
|
* Authors:
|
|
* Derek Christ
|
|
*/
|
|
|
|
#include "ListInitiator.h"
|
|
#include "TargetMemory.h"
|
|
|
|
#include <simulator/Cache.h>
|
|
#include <simulator/MemoryManager.h>
|
|
|
|
#include <gtest/gtest.h>
|
|
|
|
class SystemCTest : public testing::Test
|
|
{
|
|
public:
|
|
~SystemCTest() override { sc_core::sc_get_curr_simcontext()->reset(); }
|
|
};
|
|
|
|
class DirectMappedCache : public SystemCTest
|
|
{
|
|
protected:
|
|
DirectMappedCache() :
|
|
memoryManager(true),
|
|
initiator("ListInitiator", memoryManager),
|
|
target("TargetMemory",
|
|
sc_core::sc_time(1, sc_core::SC_NS),
|
|
sc_core::sc_time(10, sc_core::SC_NS)),
|
|
cache("Cache",
|
|
32768,
|
|
1,
|
|
32,
|
|
8,
|
|
8,
|
|
8,
|
|
true,
|
|
sc_core::sc_time(1, sc_core::SC_NS),
|
|
5,
|
|
memoryManager)
|
|
{
|
|
initiator.iSocket.bind(cache.tSocket);
|
|
cache.iSocket.bind(target.tSocket);
|
|
}
|
|
|
|
MemoryManager memoryManager;
|
|
ListInitiator initiator;
|
|
TargetMemory target;
|
|
Cache cache;
|
|
};
|
|
|
|
TEST_F(DirectMappedCache, Basic)
|
|
{
|
|
using sc_core::SC_NS;
|
|
using sc_core::sc_time;
|
|
using Command = ListInitiator::TestTransactionData::Command;
|
|
|
|
std::vector<ListInitiator::TestTransactionData> list{
|
|
// Test miss
|
|
{sc_time(0, SC_NS), sc_time(17, SC_NS), Command::Read, 0x0, 4, 0x0},
|
|
|
|
// Test secondary miss
|
|
{sc_time(1, SC_NS), sc_time(18, SC_NS), Command::Read, 0x0, 4, 0x0},
|
|
|
|
// Test hit
|
|
{sc_time(100, SC_NS), sc_time(106, SC_NS), Command::Read, 0x0, 4, 0x0},
|
|
|
|
// Test write hit
|
|
{sc_time(200, SC_NS), sc_time(206, SC_NS), Command::Write, 0x0, 4, 0x8},
|
|
|
|
// Test eviction
|
|
{sc_time(300, SC_NS), sc_time(317, SC_NS), Command::Write, 1024 * 32, 4, 0x0}};
|
|
|
|
initiator.appendTestTransactionList(list);
|
|
sc_core::sc_start();
|
|
}
|
|
|
|
// Does not work yet
|
|
// Unclear if a snoop should even happen when the line eviction fails
|
|
// TEST_F(DirectMappedCache, WriteBufferSnooping)
|
|
// {
|
|
// using sc_core::SC_NS;
|
|
// using sc_core::sc_time;
|
|
// using Command = ListInitiator::TestTransactionData::Command;
|
|
|
|
// std::vector<ListInitiator::TestTransactionData> list{
|
|
// // Allocate line
|
|
// {sc_time(0, SC_NS), sc_time(17, SC_NS), Command::Write, 0x0, 4, 0x0},
|
|
|
|
// // Evict line
|
|
// {sc_time(100, SC_NS), sc_time(117, SC_NS), Command::Read, 1024 * 32, 4, 0x0},
|
|
|
|
// // Snoop from write buffer
|
|
// {sc_time(102, SC_NS), sc_time(108, SC_NS), Command::Read, 0x0, 4, 0x0},
|
|
// };
|
|
|
|
// initiator.appendTestTransactionList(list);
|
|
// sc_core::sc_start();
|
|
// }
|