8e111ba250
There was a bunch of commented out code in the MIPS malta implementation which originally came from Alpha. That code is now deleted. Also, the MIPS code pulled in the TheISA namespace which it didn't use. Change-Id: I8470cc2fecb302f4399e52de4de9daf79c00a711 Reviewed-on: https://gem5-review.googlesource.com/9405 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Maintainer: Gabe Black <gabeblack@google.com>
156 lines
4.1 KiB
C++
156 lines
4.1 KiB
C++
/*
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* Copyright (c) 2004-2005 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Authors: Ali Saidi
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* Andrew Schultz
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* Miguel Serrano
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*/
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/** @file
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* Malta I/O including PIC, PIT, RTC, DMA
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*/
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#include "dev/mips/malta_io.hh"
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#include <sys/time.h>
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#include <deque>
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#include <string>
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#include <vector>
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#include "base/time.hh"
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#include "base/trace.hh"
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#include "debug/Malta.hh"
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#include "dev/mips/malta.hh"
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#include "dev/mips/malta_cchip.hh"
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#include "dev/mips/maltareg.h"
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#include "dev/rtcreg.h"
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#include "mem/packet.hh"
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#include "mem/packet_access.hh"
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#include "mem/port.hh"
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#include "params/MaltaIO.hh"
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#include "sim/system.hh"
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using namespace std;
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MaltaIO::RTC::RTC(const string &name, const MaltaIOParams *p)
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: MC146818(p->malta, name, p->time, p->year_is_bcd, p->frequency),
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malta(p->malta)
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{
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}
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MaltaIO::MaltaIO(const Params *p)
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: BasicPioDevice(p, 0x100), malta(p->malta),
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pitimer(this, p->name + "pitimer"), rtc(p->name + ".rtc", p)
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{
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// set the back pointer from malta to myself
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malta->io = this;
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timerData = 0;
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picr = 0;
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picInterrupting = false;
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}
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Tick
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MaltaIO::frequency() const
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{
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return SimClock::Frequency / params()->frequency;
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}
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Tick
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MaltaIO::read(PacketPtr pkt)
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{
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panic("MaltaIO::read(...) not implemented inside malta_io.cc");
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return pioDelay;
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}
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Tick
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MaltaIO::write(PacketPtr pkt)
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{
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panic("MaltaIO::write(...) not implemented inside malta_io.cc");
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return pioDelay;
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}
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void
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MaltaIO::postIntr(uint8_t interrupt)
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{
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malta->cchip->postIntr(interrupt);
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DPRINTF(Malta, "posting pic interrupt to cchip\n");
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}
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void
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MaltaIO::clearIntr(uint8_t interrupt)
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{
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malta->cchip->clearIntr(interrupt);
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DPRINTF(Malta, "clear pic interrupt to cchip\n");
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}
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void
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MaltaIO::serialize(CheckpointOut &cp) const
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{
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SERIALIZE_SCALAR(timerData);
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SERIALIZE_SCALAR(mask1);
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SERIALIZE_SCALAR(mask2);
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SERIALIZE_SCALAR(mode1);
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SERIALIZE_SCALAR(mode2);
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SERIALIZE_SCALAR(picr);
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SERIALIZE_SCALAR(picInterrupting);
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// Serialize the timers
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pitimer.serialize("pitimer", cp);
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rtc.serialize("rtc", cp);
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}
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void
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MaltaIO::unserialize(CheckpointIn &cp)
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{
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UNSERIALIZE_SCALAR(timerData);
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UNSERIALIZE_SCALAR(mask1);
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UNSERIALIZE_SCALAR(mask2);
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UNSERIALIZE_SCALAR(mode1);
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UNSERIALIZE_SCALAR(mode2);
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UNSERIALIZE_SCALAR(picr);
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UNSERIALIZE_SCALAR(picInterrupting);
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// Unserialize the timers
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pitimer.unserialize("pitimer", cp);
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rtc.unserialize("rtc", cp);
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}
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void
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MaltaIO::startup()
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{
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rtc.startup();
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pitimer.startup();
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}
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MaltaIO *
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MaltaIOParams::create()
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{
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return new MaltaIO(this);
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}
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