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/*
* Copyright (c) 2004-2005 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.
*/
/** @file
* Emulation of the Malta CChip CSRs
*/
#include "dev/mips/malta_cchip.hh"
#include <deque>
#include <string>
#include <vector>
#include "base/trace.hh"
#include "cpu/base.hh"
#include "cpu/thread_context.hh"
#include "debug/Malta.hh"
#include "dev/mips/malta.hh"
#include "dev/mips/maltareg.h"
#include "mem/packet.hh"
#include "mem/packet_access.hh"
#include "mem/port.hh"
#include "params/MaltaCChip.hh"
#include "sim/system.hh"
namespace gem5
{
MaltaCChip::MaltaCChip(const Params &p)
: BasicPioDevice(p, 0xfffffff), malta(p.malta)
{
warn("MaltaCCHIP::MaltaCChip() not implemented.");
//Put back pointer in malta
malta->cchip = this;
}
Tick
MaltaCChip::read(PacketPtr pkt)
{
panic("MaltaCCHIP::read() not implemented.");
return pioDelay;
}
Tick
MaltaCChip::write(PacketPtr pkt)
{
panic("MaltaCCHIP::write() not implemented.");
return pioDelay;
}
void
MaltaCChip::clearIPI(uint64_t ipintr)
{
panic("MaltaCCHIP::clear() not implemented.");
}
void
MaltaCChip::clearITI(uint64_t itintr)
{
panic("MaltaCCHIP::clearITI() not implemented.");
}
void
MaltaCChip::reqIPI(uint64_t ipreq)
{
panic("MaltaCCHIP::reqIPI() not implemented.");
}
void
MaltaCChip::postRTC()
{
panic("MaltaCCHIP::postRTC() not implemented.");
}
void
MaltaCChip::postIntr(uint32_t interrupt)
{
uint64_t size = sys->threads.size();
assert(size <= Malta::Max_CPUs);
for (int i=0; i < size; i++) {
//Note: Malta does not use index, but this was added to use the
//pre-existing implementation
auto tc = sys->threads[i];
tc->getCpuPtr()->postInterrupt(tc->threadId(), interrupt, 0);
DPRINTF(Malta, "posting interrupt to cpu %d, interrupt %d\n",
i, interrupt);
}
}
void
MaltaCChip::clearIntr(uint32_t interrupt)
{
uint64_t size = sys->threads.size();
assert(size <= Malta::Max_CPUs);
for (int i=0; i < size; i++) {
//Note: Malta does not use index, but this was added to use the
//pre-existing implementation
auto tc = sys->threads[i];
tc->getCpuPtr()->clearInterrupt(tc->threadId(), interrupt, 0);
DPRINTF(Malta, "clearing interrupt to cpu %d, interrupt %d\n",
i, interrupt);
}
}
void
MaltaCChip::serialize(CheckpointOut &cp) const
{
}
void
MaltaCChip::unserialize(CheckpointIn &cp)
{
}
} // namespace gem5