abc76f20cb
creation and initialization now happens in python. Parameter objects are generated and initialized by python. The .ini file is now solely for debugging purposes and is not used in construction of the objects in any way. --HG-- extra : convert_revision : 7e722873e417cb3d696f2e34c35ff488b7bff4ed
314 lines
10 KiB
C++
314 lines
10 KiB
C++
/*
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* Copyright (c) 2001-2005 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: Nathan Binkert
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* Ali Saidi
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* Steve Reinhardt
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* Erik Hallnor
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*/
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/** @file
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* Alpha Console Definition
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*/
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#include <cstddef>
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#include <string>
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#include "arch/alpha/system.hh"
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#include "base/inifile.hh"
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#include "base/str.hh"
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#include "base/trace.hh"
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#include "cpu/base.hh"
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#include "cpu/thread_context.hh"
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#include "dev/alpha/console.hh"
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#include "dev/platform.hh"
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#include "dev/simconsole.hh"
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#include "dev/simple_disk.hh"
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#include "mem/packet.hh"
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#include "mem/packet_access.hh"
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#include "mem/physical.hh"
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#include "params/AlphaConsole.hh"
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#include "sim/sim_object.hh"
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using namespace std;
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using namespace AlphaISA;
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AlphaConsole::AlphaConsole(const Params *p)
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: BasicPioDevice(p), disk(p->disk), console(p->sim_console),
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system(p->system), cpu(p->cpu)
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{
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pioSize = sizeof(struct AlphaAccess);
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alphaAccess = new Access();
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alphaAccess->last_offset = pioSize - 1;
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alphaAccess->version = ALPHA_ACCESS_VERSION;
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alphaAccess->diskUnit = 1;
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alphaAccess->diskCount = 0;
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alphaAccess->diskPAddr = 0;
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alphaAccess->diskBlock = 0;
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alphaAccess->diskOperation = 0;
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alphaAccess->outputChar = 0;
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alphaAccess->inputChar = 0;
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std::memset(alphaAccess->cpuStack, 0, sizeof(alphaAccess->cpuStack));
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}
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void
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AlphaConsole::startup()
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{
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system->setAlphaAccess(pioAddr);
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alphaAccess->numCPUs = system->getNumCPUs();
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alphaAccess->kernStart = system->getKernelStart();
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alphaAccess->kernEnd = system->getKernelEnd();
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alphaAccess->entryPoint = system->getKernelEntry();
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alphaAccess->mem_size = system->physmem->size();
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alphaAccess->cpuClock = cpu->frequency() / 1000000; // In MHz
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alphaAccess->intrClockFrequency = params()->platform->intrFrequency();
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}
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Tick
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AlphaConsole::read(PacketPtr pkt)
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{
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/** XXX Do we want to push the addr munging to a bus brige or something? So
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* the device has it's physical address and then the bridge adds on whatever
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* machine dependent address swizzle is required?
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*/
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assert(pkt->result == Packet::Unknown);
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assert(pkt->getAddr() >= pioAddr && pkt->getAddr() < pioAddr + pioSize);
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Addr daddr = pkt->getAddr() - pioAddr;
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pkt->allocate();
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switch (pkt->getSize())
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{
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case sizeof(uint32_t):
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switch (daddr)
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{
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case offsetof(AlphaAccess, last_offset):
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pkt->set(alphaAccess->last_offset);
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break;
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case offsetof(AlphaAccess, version):
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pkt->set(alphaAccess->version);
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break;
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case offsetof(AlphaAccess, numCPUs):
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pkt->set(alphaAccess->numCPUs);
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break;
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case offsetof(AlphaAccess, intrClockFrequency):
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pkt->set(alphaAccess->intrClockFrequency);
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break;
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default:
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/* Old console code read in everyting as a 32bit int
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* we now break that for better error checking.
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*/
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pkt->result = Packet::BadAddress;
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}
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DPRINTF(AlphaConsole, "read: offset=%#x val=%#x\n", daddr,
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pkt->get<uint32_t>());
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break;
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case sizeof(uint64_t):
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switch (daddr)
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{
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case offsetof(AlphaAccess, inputChar):
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pkt->set(console->console_in());
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break;
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case offsetof(AlphaAccess, cpuClock):
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pkt->set(alphaAccess->cpuClock);
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break;
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case offsetof(AlphaAccess, mem_size):
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pkt->set(alphaAccess->mem_size);
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break;
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case offsetof(AlphaAccess, kernStart):
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pkt->set(alphaAccess->kernStart);
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break;
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case offsetof(AlphaAccess, kernEnd):
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pkt->set(alphaAccess->kernEnd);
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break;
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case offsetof(AlphaAccess, entryPoint):
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pkt->set(alphaAccess->entryPoint);
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break;
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case offsetof(AlphaAccess, diskUnit):
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pkt->set(alphaAccess->diskUnit);
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break;
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case offsetof(AlphaAccess, diskCount):
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pkt->set(alphaAccess->diskCount);
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break;
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case offsetof(AlphaAccess, diskPAddr):
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pkt->set(alphaAccess->diskPAddr);
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break;
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case offsetof(AlphaAccess, diskBlock):
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pkt->set(alphaAccess->diskBlock);
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break;
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case offsetof(AlphaAccess, diskOperation):
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pkt->set(alphaAccess->diskOperation);
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break;
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case offsetof(AlphaAccess, outputChar):
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pkt->set(alphaAccess->outputChar);
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break;
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default:
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int cpunum = (daddr - offsetof(AlphaAccess, cpuStack)) /
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sizeof(alphaAccess->cpuStack[0]);
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if (cpunum >= 0 && cpunum < 64)
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pkt->set(alphaAccess->cpuStack[cpunum]);
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else
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panic("Unknown 64bit access, %#x\n", daddr);
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}
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DPRINTF(AlphaConsole, "read: offset=%#x val=%#x\n", daddr,
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pkt->get<uint64_t>());
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break;
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default:
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pkt->result = Packet::BadAddress;
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}
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if (pkt->result == Packet::Unknown)
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pkt->result = Packet::Success;
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return pioDelay;
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}
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Tick
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AlphaConsole::write(PacketPtr pkt)
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{
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assert(pkt->result == Packet::Unknown);
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assert(pkt->getAddr() >= pioAddr && pkt->getAddr() < pioAddr + pioSize);
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Addr daddr = pkt->getAddr() - pioAddr;
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uint64_t val = pkt->get<uint64_t>();
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assert(pkt->getSize() == sizeof(uint64_t));
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switch (daddr) {
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case offsetof(AlphaAccess, diskUnit):
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alphaAccess->diskUnit = val;
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break;
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case offsetof(AlphaAccess, diskCount):
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alphaAccess->diskCount = val;
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break;
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case offsetof(AlphaAccess, diskPAddr):
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alphaAccess->diskPAddr = val;
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break;
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case offsetof(AlphaAccess, diskBlock):
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alphaAccess->diskBlock = val;
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break;
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case offsetof(AlphaAccess, diskOperation):
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if (val == 0x13)
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disk->read(alphaAccess->diskPAddr, alphaAccess->diskBlock,
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alphaAccess->diskCount);
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else
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panic("Invalid disk operation!");
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break;
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case offsetof(AlphaAccess, outputChar):
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console->out((char)(val & 0xff));
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break;
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default:
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int cpunum = (daddr - offsetof(AlphaAccess, cpuStack)) /
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sizeof(alphaAccess->cpuStack[0]);
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warn("%d: Trying to launch CPU number %d!", curTick, cpunum);
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assert(val > 0 && "Must not access primary cpu");
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if (cpunum >= 0 && cpunum < 64)
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alphaAccess->cpuStack[cpunum] = val;
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else
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panic("Unknown 64bit access, %#x\n", daddr);
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}
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pkt->result = Packet::Success;
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return pioDelay;
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}
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void
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AlphaConsole::Access::serialize(ostream &os)
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{
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SERIALIZE_SCALAR(last_offset);
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SERIALIZE_SCALAR(version);
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SERIALIZE_SCALAR(numCPUs);
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SERIALIZE_SCALAR(mem_size);
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SERIALIZE_SCALAR(cpuClock);
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SERIALIZE_SCALAR(intrClockFrequency);
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SERIALIZE_SCALAR(kernStart);
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SERIALIZE_SCALAR(kernEnd);
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SERIALIZE_SCALAR(entryPoint);
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SERIALIZE_SCALAR(diskUnit);
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SERIALIZE_SCALAR(diskCount);
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SERIALIZE_SCALAR(diskPAddr);
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SERIALIZE_SCALAR(diskBlock);
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SERIALIZE_SCALAR(diskOperation);
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SERIALIZE_SCALAR(outputChar);
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SERIALIZE_SCALAR(inputChar);
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SERIALIZE_ARRAY(cpuStack,64);
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}
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void
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AlphaConsole::Access::unserialize(Checkpoint *cp, const std::string §ion)
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{
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UNSERIALIZE_SCALAR(last_offset);
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UNSERIALIZE_SCALAR(version);
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UNSERIALIZE_SCALAR(numCPUs);
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UNSERIALIZE_SCALAR(mem_size);
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UNSERIALIZE_SCALAR(cpuClock);
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UNSERIALIZE_SCALAR(intrClockFrequency);
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UNSERIALIZE_SCALAR(kernStart);
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UNSERIALIZE_SCALAR(kernEnd);
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UNSERIALIZE_SCALAR(entryPoint);
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UNSERIALIZE_SCALAR(diskUnit);
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UNSERIALIZE_SCALAR(diskCount);
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UNSERIALIZE_SCALAR(diskPAddr);
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UNSERIALIZE_SCALAR(diskBlock);
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UNSERIALIZE_SCALAR(diskOperation);
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UNSERIALIZE_SCALAR(outputChar);
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UNSERIALIZE_SCALAR(inputChar);
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UNSERIALIZE_ARRAY(cpuStack, 64);
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}
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void
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AlphaConsole::serialize(ostream &os)
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{
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alphaAccess->serialize(os);
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}
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void
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AlphaConsole::unserialize(Checkpoint *cp, const std::string §ion)
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{
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alphaAccess->unserialize(cp, section);
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}
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AlphaConsole *
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AlphaConsoleParams::create()
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{
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return new AlphaConsole(this);
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}
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