gem5/util/tlm/sc_mm.cc
Christian Menard b25ea094d4 misc: Clean up and complete the gem5<->SystemC-TLM bridge [1/10]
The current TLM bridge only provides a Slave Port that allows the gem5
world to send request to the SystemC world. This patch series refractors
and cleans up the existing code, and adds a Master Port that allows the
SystemC world to send requests to the gem5 world.

This patch:
 * Restructure the existing sources in preparation of the addition of the
 * new
   Master Port.
 * Refractor names to allow for distinction of the slave and master port.
 * Replace the Makefile by a SConstruct.

Testing Done: The examples provided in util/tlm (now
util/tlm/examples/slave_port) still compile and run error free.

Reviewed at http://reviews.gem5.org/r/3527/

Signed-off-by: Jason Lowe-Power <jason@lowepower.com>
2017-02-09 19:15:30 -05:00

79 lines
2.3 KiB
C++

/*
* Copyright (c) 2015, University of Kaiserslautern
* 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:
* Robert Gernhardt
* Matthias Jung
*/
#include <iostream>
#include "sc_mm.hh"
using namespace std;
namespace Gem5SystemC
{
MemoryManager::MemoryManager(): numberOfAllocations(0), numberOfFrees(0)
{
}
MemoryManager::~MemoryManager()
{
for (gp* payload: freePayloads) {
delete payload;
numberOfFrees++;
}
}
gp*
MemoryManager::allocate()
{
if (freePayloads.empty()) {
numberOfAllocations++;
return new gp(this);
} else {
gp* result = freePayloads.back();
freePayloads.pop_back();
return result;
}
}
void
MemoryManager::free(gp* payload)
{
payload->reset(); //clears all extensions
freePayloads.push_back(payload);
}
}