/* * 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. */ /** @file * Alpha Console Definition */ #include #include #include "arch/alpha/system.hh" #include "base/inifile.hh" #include "base/str.hh" #include "base/trace.hh" #include "cpu/base.hh" #include "cpu/exec_context.hh" #include "dev/alpha_console.hh" #include "dev/platform.hh" #include "dev/simconsole.hh" #include "dev/simple_disk.hh" #include "mem/physical.hh" #include "sim/builder.hh" #include "sim/sim_object.hh" using namespace std; using namespace AlphaISA; AlphaConsole::AlphaConsole(Params *p) : BasicPioDevice(p), disk(p->disk), console(params()->cons), system(params()->alpha_sys), cpu(params()->cpu) { pioSize = sizeof(struct AlphaAccess); alphaAccess = new Access(); alphaAccess->last_offset = pioSize - 1; alphaAccess->version = ALPHA_ACCESS_VERSION; alphaAccess->diskUnit = 1; alphaAccess->diskCount = 0; alphaAccess->diskPAddr = 0; alphaAccess->diskBlock = 0; alphaAccess->diskOperation = 0; alphaAccess->outputChar = 0; alphaAccess->inputChar = 0; bzero(alphaAccess->cpuStack, sizeof(alphaAccess->cpuStack)); } void AlphaConsole::startup() { system->setAlphaAccess(pioAddr); alphaAccess->numCPUs = system->getNumCPUs(); alphaAccess->kernStart = system->getKernelStart(); alphaAccess->kernEnd = system->getKernelEnd(); alphaAccess->entryPoint = system->getKernelEntry(); alphaAccess->mem_size = system->physmem->size(); alphaAccess->cpuClock = cpu->frequency() / 1000000; // In MHz alphaAccess->intrClockFrequency = params()->platform->intrFrequency(); } Tick AlphaConsole::read(Packet &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.result == Unknown); assert(pkt.addr >= pioAddr && pkt.addr < pioAddr + pioSize); pkt.time += pioDelay; Addr daddr = pkt.addr - pioAddr; pkt.allocate(); switch (pkt.size) { case sizeof(uint32_t): switch (daddr) { case offsetof(AlphaAccess, last_offset): pkt.set(alphaAccess->last_offset); break; case offsetof(AlphaAccess, version): pkt.set(alphaAccess->version); break; case offsetof(AlphaAccess, numCPUs): pkt.set(alphaAccess->numCPUs); break; case offsetof(AlphaAccess, intrClockFrequency): pkt.set(alphaAccess->intrClockFrequency); break; default: /* Old console code read in everyting as a 32bit int * we now break that for better error checking. */ pkt.result = BadAddress; } DPRINTF(AlphaConsole, "read: offset=%#x val=%#x\n", daddr, pkt.get()); break; case sizeof(uint64_t): switch (daddr) { case offsetof(AlphaAccess, inputChar): pkt.set(console->console_in()); break; case offsetof(AlphaAccess, cpuClock): pkt.set(alphaAccess->cpuClock); break; case offsetof(AlphaAccess, mem_size): pkt.set(alphaAccess->mem_size); break; case offsetof(AlphaAccess, kernStart): pkt.set(alphaAccess->kernStart); break; case offsetof(AlphaAccess, kernEnd): pkt.set(alphaAccess->kernEnd); break; case offsetof(AlphaAccess, entryPoint): pkt.set(alphaAccess->entryPoint); break; case offsetof(AlphaAccess, diskUnit): pkt.set(alphaAccess->diskUnit); break; case offsetof(AlphaAccess, diskCount): pkt.set(alphaAccess->diskCount); break; case offsetof(AlphaAccess, diskPAddr): pkt.set(alphaAccess->diskPAddr); break; case offsetof(AlphaAccess, diskBlock): pkt.set(alphaAccess->diskBlock); break; case offsetof(AlphaAccess, diskOperation): pkt.set(alphaAccess->diskOperation); break; case offsetof(AlphaAccess, outputChar): pkt.set(alphaAccess->outputChar); break; default: int cpunum = (daddr - offsetof(AlphaAccess, cpuStack)) / sizeof(alphaAccess->cpuStack[0]); if (cpunum >= 0 && cpunum < 64) pkt.set(alphaAccess->cpuStack[cpunum]); else panic("Unknown 64bit access, %#x\n", daddr); } DPRINTF(AlphaConsole, "read: offset=%#x val=%#x\n", daddr, pkt.get()); break; default: pkt.result = BadAddress; } if (pkt.result == Unknown) pkt.result = Success; return pioDelay; } Tick AlphaConsole::write(Packet &pkt) { pkt.time += pioDelay; assert(pkt.result == Unknown); assert(pkt.addr >= pioAddr && pkt.addr < pioAddr + pioSize); Addr daddr = pkt.addr - pioAddr; uint64_t val = pkt.get(); assert(pkt.size == sizeof(uint64_t)); switch (daddr) { case offsetof(AlphaAccess, diskUnit): alphaAccess->diskUnit = val; break; case offsetof(AlphaAccess, diskCount): alphaAccess->diskCount = val; break; case offsetof(AlphaAccess, diskPAddr): alphaAccess->diskPAddr = val; break; case offsetof(AlphaAccess, diskBlock): alphaAccess->diskBlock = val; break; case offsetof(AlphaAccess, diskOperation): if (val == 0x13) disk->read(alphaAccess->diskPAddr, alphaAccess->diskBlock, alphaAccess->diskCount); else panic("Invalid disk operation!"); break; case offsetof(AlphaAccess, outputChar): console->out((char)(val & 0xff)); break; default: int cpunum = (daddr - offsetof(AlphaAccess, cpuStack)) / sizeof(alphaAccess->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) alphaAccess->cpuStack[cpunum] = val; else panic("Unknown 64bit access, %#x\n", daddr); } pkt.result = Success; return pioDelay; } void AlphaConsole::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 AlphaConsole::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 AlphaConsole::serialize(ostream &os) { alphaAccess->serialize(os); } void AlphaConsole::unserialize(Checkpoint *cp, const std::string §ion) { alphaAccess->unserialize(cp, section); } BEGIN_DECLARE_SIM_OBJECT_PARAMS(AlphaConsole) SimObjectParam sim_console; SimObjectParam disk; Param pio_addr; SimObjectParam system; SimObjectParam cpu; SimObjectParam platform; Param pio_latency; END_DECLARE_SIM_OBJECT_PARAMS(AlphaConsole) BEGIN_INIT_SIM_OBJECT_PARAMS(AlphaConsole) INIT_PARAM(sim_console, "The Simulator Console"), INIT_PARAM(disk, "Simple Disk"), INIT_PARAM(pio_addr, "Device Address"), INIT_PARAM(system, "system object"), INIT_PARAM(cpu, "Processor"), INIT_PARAM(platform, "platform"), INIT_PARAM_DFLT(pio_latency, "Programmed IO latency", 1000) END_INIT_SIM_OBJECT_PARAMS(AlphaConsole) CREATE_SIM_OBJECT(AlphaConsole) { AlphaConsole::Params *p = new AlphaConsole::Params; p->name = getInstanceName(); p->platform = platform; p->pio_addr = pio_addr; p->pio_delay = pio_latency; p->cons = sim_console; p->disk = disk; p->alpha_sys = system; p->system = system; p->cpu = cpu; return new AlphaConsole(p); } REGISTER_SIM_OBJECT("AlphaConsole", AlphaConsole)