851f91f245
Make PioPort use it
Make Physical memory use it as well
src/SConscript:
Add timing port to sconscript
src/dev/io_device.cc:
src/dev/io_device.hh:
Move simple timing pio port stuff into a simple timing port class so it can be used by the physical memory
src/mem/physical.cc:
src/mem/physical.hh:
use a simple timing port stuff instead of rolling our own here
--HG--
extra : convert_revision : e5befbd295a572568cfdca533efb5ed1984c59d1
83 lines
2.7 KiB
C++
83 lines
2.7 KiB
C++
/*
|
|
* Copyright (c) 2006 The Regents of The University of Michigan
|
|
* 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.
|
|
*
|
|
* Authors: Ali Saidi
|
|
*/
|
|
|
|
#include "mem/tport.hh"
|
|
|
|
void
|
|
SimpleTimingPort::recvRetry()
|
|
{
|
|
bool result = true;
|
|
while (result && transmitList.size()) {
|
|
result = Port::sendTiming(transmitList.front());
|
|
if (result)
|
|
transmitList.pop_front();
|
|
}
|
|
if (transmitList.size() == 0 && drainEvent) {
|
|
drainEvent->process();
|
|
drainEvent = NULL;
|
|
}
|
|
}
|
|
|
|
void
|
|
SimpleTimingPort::SendEvent::process()
|
|
{
|
|
port->outTiming--;
|
|
assert(port->outTiming >= 0);
|
|
if (port->Port::sendTiming(packet))
|
|
if (port->transmitList.size() == 0 && port->drainEvent) {
|
|
port->drainEvent->process();
|
|
port->drainEvent = NULL;
|
|
}
|
|
return;
|
|
|
|
port->transmitList.push_back(packet);
|
|
}
|
|
|
|
void
|
|
SimpleTimingPort::resendNacked(Packet *pkt) {
|
|
pkt->reinitNacked();
|
|
if (transmitList.size()) {
|
|
transmitList.push_front(pkt);
|
|
} else {
|
|
if (!Port::sendTiming(pkt))
|
|
transmitList.push_front(pkt);
|
|
}
|
|
};
|
|
|
|
|
|
unsigned int
|
|
SimpleTimingPort::drain(Event *de)
|
|
{
|
|
if (outTiming == 0 && transmitList.size() == 0)
|
|
return 0;
|
|
drainEvent = de;
|
|
return 1;
|
|
}
|