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Diffstat (limited to 'src/dev/mips/backdoor.cc')
| -rwxr-xr-x | src/dev/mips/backdoor.cc | 297 |
1 files changed, 0 insertions, 297 deletions
diff --git a/src/dev/mips/backdoor.cc b/src/dev/mips/backdoor.cc deleted file mode 100755 index a1247fbd0..000000000 --- a/src/dev/mips/backdoor.cc +++ /dev/null @@ -1,297 +0,0 @@ -/* - * Copyright (c) 2001-2005 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. - * - * Authors: Nathan Binkert - * Ali Saidi - * Steve Reinhardt - * Erik Hallnor - */ - -/** @file - * Mips Console Backdoor Definition - */ -#include <cstddef> -#include <string> - -#include "arch/mips/system.hh" -#include "base/inifile.hh" -#include "base/str.hh" -#include "base/trace.hh" -#include "cpu/base.hh" -#include "cpu/thread_context.hh" -#include "dev/mips/backdoor.hh" -#include "dev/platform.hh" -#include "dev/simple_disk.hh" -#include "dev/terminal.hh" -#include "mem/packet.hh" -#include "mem/packet_access.hh" -#include "mem/physical.hh" -#include "params/MipsBackdoor.hh" -#include "sim/sim_object.hh" - - -using namespace std; -using namespace MipsISA; - -MipsBackdoor::MipsBackdoor(const Params *p) - : BasicPioDevice(p), disk(p->disk), terminal(p->terminal), - system(p->system), cpu(p->cpu) -{ - - pioSize = sizeof(struct MipsAccess); - - mipsAccess = new Access(); - mipsAccess->last_offset = pioSize - 1; - - mipsAccess->version = MIPS_ACCESS_VERSION; - mipsAccess->diskUnit = 1; - - mipsAccess->diskCount = 0; - mipsAccess->diskPAddr = 0; - mipsAccess->diskBlock = 0; - mipsAccess->diskOperation = 0; - mipsAccess->outputChar = 0; - mipsAccess->inputChar = 0; - bzero(mipsAccess->cpuStack, sizeof(mipsAccess->cpuStack)); - -} - -void -MipsBackdoor::startup() -{ - system->setMipsAccess(pioAddr); - mipsAccess->numCPUs = system->numContexts(); - mipsAccess->kernStart = MipsISA::Phys2K0Seg(system->getKernelStart()); - mipsAccess->kernEnd = MipsISA::Phys2K0Seg(system->getKernelEnd()); - mipsAccess->entryPoint = MipsISA::Phys2K0Seg(system->getKernelEntry()); - mipsAccess->mem_size = system->physmem->size(); - mipsAccess->cpuClock = cpu->frequency() / 1000000; // In MHz - mipsAccess->intrClockFrequency = params()->platform->intrFrequency(); -} - -Tick -MipsBackdoor::read(PacketPtr pkt) -{ - - /** XXX Do we want to push the addr munging to a bus brige or something? So - * the device has it's physical address and then the bridge adds on whatever - * machine dependent address swizzle is required? - */ - assert(pkt->getAddr() >= pioAddr && pkt->getAddr() < pioAddr + pioSize); - - Addr daddr = pkt->getAddr() - pioAddr; - - pkt->allocate(); - - switch (pkt->getSize()) - { - case sizeof(uint32_t): - switch (daddr) - { - case offsetof(MipsAccess, last_offset): - pkt->set(mipsAccess->last_offset); - break; - case offsetof(MipsAccess, version): - pkt->set(mipsAccess->version); - break; - case offsetof(MipsAccess, numCPUs): - pkt->set(mipsAccess->numCPUs); - break; - case offsetof(MipsAccess, intrClockFrequency): - pkt->set(mipsAccess->intrClockFrequency); - break; - case offsetof(MipsAccess, inputChar): - pkt->set(terminal->console_in()); - break; - case offsetof(MipsAccess, cpuClock): - pkt->set(mipsAccess->cpuClock); - break; - case offsetof(MipsAccess, mem_size): - pkt->set(mipsAccess->mem_size); - break; - case offsetof(MipsAccess, kernStart): - pkt->set(mipsAccess->kernStart); - break; - case offsetof(MipsAccess, kernEnd): - pkt->set(mipsAccess->kernEnd); - break; - case offsetof(MipsAccess, entryPoint): - pkt->set(mipsAccess->entryPoint); - break; - case offsetof(MipsAccess, diskUnit): - pkt->set(mipsAccess->diskUnit); - break; - case offsetof(MipsAccess, diskCount): - pkt->set(mipsAccess->diskCount); - break; - case offsetof(MipsAccess, diskPAddr): - pkt->set(mipsAccess->diskPAddr); - break; - case offsetof(MipsAccess, diskBlock): - pkt->set(mipsAccess->diskBlock); - break; - case offsetof(MipsAccess, diskOperation): - pkt->set(mipsAccess->diskOperation); - break; - case offsetof(MipsAccess, outputChar): - pkt->set(mipsAccess->outputChar); - break; - default: - int cpunum = (daddr - offsetof(MipsAccess, cpuStack)) / - sizeof(mipsAccess->cpuStack[0]); - - if (cpunum >= 0 && cpunum < 64) - pkt->set(mipsAccess->cpuStack[cpunum]); - else - panic("Unknown 32bit access, %#x\n", daddr); - } - //DPRINTF(MipsBackdoor, "read: offset=%#x val=%#x\n", daddr, - // pkt->get<uint64_t>()); - break; - default: - pkt->setBadAddress(); - } - - pkt->makeAtomicResponse(); - return pioDelay; -} - -Tick -MipsBackdoor::write(PacketPtr pkt) -{ - assert(pkt->getAddr() >= pioAddr && pkt->getAddr() < pioAddr + pioSize); - Addr daddr = pkt->getAddr() - pioAddr; - - uint32_t val = pkt->get<uint32_t>(); - assert(pkt->getSize() == sizeof(uint32_t)); - switch (daddr) { - case offsetof(MipsAccess, diskUnit): - mipsAccess->diskUnit = val; - break; - - case offsetof(MipsAccess, diskCount): - mipsAccess->diskCount = val; - break; - - case offsetof(MipsAccess, diskPAddr): - mipsAccess->diskPAddr = val; - break; - - case offsetof(MipsAccess, diskBlock): - mipsAccess->diskBlock = val; - break; - - case offsetof(MipsAccess, diskOperation): - if (val == 0x13) - disk->read(mipsAccess->diskPAddr, mipsAccess->diskBlock, - mipsAccess->diskCount); - else - panic("Invalid disk operation!"); - - break; - - case offsetof(MipsAccess, outputChar): - terminal->out((char)(val & 0xff)); - break; - - default: - int cpunum = (daddr - offsetof(MipsAccess, cpuStack)) / - sizeof(mipsAccess->cpuStack[0]); - warn("%d: Trying to launch CPU number %d!", curTick, cpunum); - assert(val > 0 && "Must not access primary cpu"); - if (cpunum >= 0 && cpunum < 64) - mipsAccess->cpuStack[cpunum] = val; - else - panic("Unknown 32bit access, %#x\n", daddr); - } - - pkt->makeAtomicResponse(); - - return pioDelay; -} - -void -MipsBackdoor::Access::serialize(ostream &os) -{ - SERIALIZE_SCALAR(last_offset); - SERIALIZE_SCALAR(version); - SERIALIZE_SCALAR(numCPUs); - SERIALIZE_SCALAR(mem_size); - SERIALIZE_SCALAR(cpuClock); - SERIALIZE_SCALAR(intrClockFrequency); - SERIALIZE_SCALAR(kernStart); - SERIALIZE_SCALAR(kernEnd); - SERIALIZE_SCALAR(entryPoint); - SERIALIZE_SCALAR(diskUnit); - SERIALIZE_SCALAR(diskCount); - SERIALIZE_SCALAR(diskPAddr); - SERIALIZE_SCALAR(diskBlock); - SERIALIZE_SCALAR(diskOperation); - SERIALIZE_SCALAR(outputChar); - SERIALIZE_SCALAR(inputChar); - SERIALIZE_ARRAY(cpuStack,64); -} - -void -MipsBackdoor::Access::unserialize(Checkpoint *cp, const std::string §ion) -{ - UNSERIALIZE_SCALAR(last_offset); - UNSERIALIZE_SCALAR(version); - UNSERIALIZE_SCALAR(numCPUs); - UNSERIALIZE_SCALAR(mem_size); - UNSERIALIZE_SCALAR(cpuClock); - UNSERIALIZE_SCALAR(intrClockFrequency); - UNSERIALIZE_SCALAR(kernStart); - UNSERIALIZE_SCALAR(kernEnd); - UNSERIALIZE_SCALAR(entryPoint); - UNSERIALIZE_SCALAR(diskUnit); - UNSERIALIZE_SCALAR(diskCount); - UNSERIALIZE_SCALAR(diskPAddr); - UNSERIALIZE_SCALAR(diskBlock); - UNSERIALIZE_SCALAR(diskOperation); - UNSERIALIZE_SCALAR(outputChar); - UNSERIALIZE_SCALAR(inputChar); - UNSERIALIZE_ARRAY(cpuStack, 64); -} - -void -MipsBackdoor::serialize(ostream &os) -{ - mipsAccess->serialize(os); -} - -void -MipsBackdoor::unserialize(Checkpoint *cp, const std::string §ion) -{ - mipsAccess->unserialize(cp, section); -} - -MipsBackdoor * -MipsBackdoorParams::create() -{ - return new MipsBackdoor(this); -} |