7976794aad
interfaces, and specific support for Alpha Linux. Split syscall emulation functions into several groups, based on whether they depend on the specific OS and/or architecture (and all combinations of above), including the use of template functions to support syscalls with slightly different constants or interface structs. arch/alpha/alpha_tru64_process.cc: Incorporate full Tru64 object definition here, including structure and constant definitions. This way we can wrap all of the functions inside the object, and not worry about namespace conflicts because no one outside this file will ever see it. base/loader/aout_object.cc: base/loader/aout_object.hh: base/loader/ecoff_object.cc: base/loader/ecoff_object.hh: base/loader/elf_object.cc: base/loader/elf_object.hh: base/loader/object_file.cc: base/loader/object_file.hh: Add enums to ObjectFile to indicate the object's architecture and operating system. cpu/exec_context.cc: prog.hh is now process.hh cpu/exec_context.hh: prog.hh is now process.hh move architecture-specific syscall arg accessors into ExecContext cpu/simple_cpu/simple_cpu.cc: No need to include prog.hh (which has been renamed) sim/process.cc: sim/process.hh: LiveProcess is now effectively an abstract base class. New LiveProcess::create() function takes an object file and dynamically picks the appropriate subclass of LiveProcess to handle the syscall interface that file expects (currently Tru64 or Linux). --HG-- rename : arch/alpha/fake_syscall.cc => arch/alpha/alpha_tru64_process.cc rename : sim/prog.cc => sim/process.cc rename : sim/prog.hh => sim/process.hh extra : convert_revision : 4a03ca7d94a34177cb672931f8aae83a6bad179a
792 lines
21 KiB
C++
792 lines
21 KiB
C++
/*
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* Copyright (c) 2003 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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#include <cmath>
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#include <cstdio>
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#include <cstdlib>
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#include <iostream>
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#include <iomanip>
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#include <list>
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#include <sstream>
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#include <string>
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#include "base/cprintf.hh"
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#include "base/inifile.hh"
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#include "base/loader/symtab.hh"
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#include "base/misc.hh"
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#include "base/pollevent.hh"
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#include "base/range.hh"
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#include "base/trace.hh"
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#include "cpu/base_cpu.hh"
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#include "cpu/exec_context.hh"
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#include "cpu/exetrace.hh"
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#include "cpu/full_cpu/smt.hh"
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#include "cpu/simple_cpu/simple_cpu.hh"
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#include "cpu/static_inst.hh"
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#include "mem/base_mem.hh"
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#include "mem/mem_interface.hh"
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#include "sim/annotation.hh"
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#include "sim/builder.hh"
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#include "sim/debug.hh"
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#include "sim/host.hh"
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#include "sim/sim_events.hh"
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#include "sim/sim_object.hh"
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#include "sim/sim_stats.hh"
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#ifdef FULL_SYSTEM
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#include "base/remote_gdb.hh"
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#include "dev/alpha_access.h"
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#include "dev/pciareg.h"
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#include "mem/functional_mem/memory_control.hh"
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#include "mem/functional_mem/physical_memory.hh"
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#include "sim/system.hh"
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#include "targetarch/alpha_memory.hh"
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#include "targetarch/vtophys.hh"
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#else // !FULL_SYSTEM
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#include "eio/eio.hh"
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#include "mem/functional_mem/functional_memory.hh"
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#endif // FULL_SYSTEM
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using namespace std;
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SimpleCPU::TickEvent::TickEvent(SimpleCPU *c)
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: Event(&mainEventQueue, 100), cpu(c)
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{
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}
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void
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SimpleCPU::TickEvent::process()
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{
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cpu->tick();
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}
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const char *
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SimpleCPU::TickEvent::description()
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{
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return "SimpleCPU tick event";
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}
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SimpleCPU::CacheCompletionEvent::CacheCompletionEvent(SimpleCPU *_cpu)
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: Event(&mainEventQueue),
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cpu(_cpu)
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{
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}
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void SimpleCPU::CacheCompletionEvent::process()
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{
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cpu->processCacheCompletion();
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}
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const char *
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SimpleCPU::CacheCompletionEvent::description()
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{
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return "SimpleCPU cache completion event";
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}
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#ifdef FULL_SYSTEM
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SimpleCPU::SimpleCPU(const string &_name,
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System *_system,
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Counter max_insts_any_thread,
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Counter max_insts_all_threads,
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Counter max_loads_any_thread,
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Counter max_loads_all_threads,
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AlphaItb *itb, AlphaDtb *dtb,
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FunctionalMemory *mem,
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MemInterface *icache_interface,
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MemInterface *dcache_interface,
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Tick freq)
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: BaseCPU(_name, /* number_of_threads */ 1,
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max_insts_any_thread, max_insts_all_threads,
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max_loads_any_thread, max_loads_all_threads,
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_system, freq),
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#else
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SimpleCPU::SimpleCPU(const string &_name, Process *_process,
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Counter max_insts_any_thread,
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Counter max_insts_all_threads,
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Counter max_loads_any_thread,
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Counter max_loads_all_threads,
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MemInterface *icache_interface,
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MemInterface *dcache_interface)
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: BaseCPU(_name, /* number_of_threads */ 1,
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max_insts_any_thread, max_insts_all_threads,
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max_loads_any_thread, max_loads_all_threads),
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#endif
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tickEvent(this), xc(NULL), cacheCompletionEvent(this)
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{
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_status = Idle;
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#ifdef FULL_SYSTEM
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xc = new ExecContext(this, 0, system, itb, dtb, mem);
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// initialize CPU, including PC
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TheISA::initCPU(&xc->regs);
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#else
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xc = new ExecContext(this, /* thread_num */ 0, _process, /* asid */ 0);
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#endif // !FULL_SYSTEM
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icacheInterface = icache_interface;
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dcacheInterface = dcache_interface;
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memReq = new MemReq();
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memReq->xc = xc;
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memReq->asid = 0;
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memReq->data = new uint8_t[64];
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numInst = 0;
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startNumInst = 0;
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numLoad = 0;
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startNumLoad = 0;
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lastIcacheStall = 0;
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lastDcacheStall = 0;
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execContexts.push_back(xc);
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}
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SimpleCPU::~SimpleCPU()
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{
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}
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void
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SimpleCPU::switchOut()
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{
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_status = SwitchedOut;
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if (tickEvent.scheduled())
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tickEvent.squash();
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}
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void
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SimpleCPU::takeOverFrom(BaseCPU *oldCPU)
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{
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BaseCPU::takeOverFrom(oldCPU);
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assert(!tickEvent.scheduled());
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// if any of this CPU's ExecContexts are active, mark the CPU as
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// running and schedule its tick event.
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for (int i = 0; i < execContexts.size(); ++i) {
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ExecContext *xc = execContexts[i];
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if (xc->status() == ExecContext::Active && _status != Running) {
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_status = Running;
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tickEvent.schedule(curTick);
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}
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}
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oldCPU->switchOut();
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}
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void
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SimpleCPU::execCtxStatusChg(int thread_num) {
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assert(thread_num == 0);
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assert(xc);
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if (xc->status() == ExecContext::Active)
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setStatus(Running);
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else
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setStatus(Idle);
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}
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void
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SimpleCPU::regStats()
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{
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using namespace Statistics;
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BaseCPU::regStats();
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numInsts
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.name(name() + ".num_insts")
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.desc("Number of instructions executed")
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;
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numMemRefs
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.name(name() + ".num_refs")
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.desc("Number of memory references")
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;
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idleFraction
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.name(name() + ".idle_fraction")
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.desc("Percentage of idle cycles")
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;
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icacheStallCycles
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.name(name() + ".icache_stall_cycles")
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.desc("ICache total stall cycles")
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.prereq(icacheStallCycles)
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;
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dcacheStallCycles
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.name(name() + ".dcache_stall_cycles")
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.desc("DCache total stall cycles")
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.prereq(dcacheStallCycles)
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;
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numInsts = Statistics::scalar(numInst) - Statistics::scalar(startNumInst);
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simInsts += numInsts;
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}
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void
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SimpleCPU::resetStats()
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{
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startNumInst = numInst;
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}
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void
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SimpleCPU::serialize(ostream &os)
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{
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SERIALIZE_ENUM(_status);
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SERIALIZE_SCALAR(inst);
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nameOut(os, csprintf("%s.xc", name()));
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xc->serialize(os);
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nameOut(os, csprintf("%s.tickEvent", name()));
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tickEvent.serialize(os);
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nameOut(os, csprintf("%s.cacheCompletionEvent", name()));
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cacheCompletionEvent.serialize(os);
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}
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void
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SimpleCPU::unserialize(Checkpoint *cp, const string §ion)
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{
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UNSERIALIZE_ENUM(_status);
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UNSERIALIZE_SCALAR(inst);
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xc->unserialize(cp, csprintf("%s.xc", section));
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tickEvent.unserialize(cp, csprintf("%s.tickEvent", section));
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cacheCompletionEvent
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.unserialize(cp, csprintf("%s.cacheCompletionEvent", section));
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}
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void
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change_thread_state(int thread_number, int activate, int priority)
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{
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}
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// precise architected memory state accessor macros
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template <class T>
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Fault
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SimpleCPU::read(Addr addr, T& data, unsigned flags)
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{
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memReq->reset(addr, sizeof(T), flags);
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// translate to physical address
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Fault fault = xc->translateDataReadReq(memReq);
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// do functional access
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if (fault == No_Fault)
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fault = xc->read(memReq, data);
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if (traceData) {
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traceData->setAddr(addr);
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if (fault == No_Fault)
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traceData->setData(data);
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}
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// if we have a cache, do cache access too
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if (fault == No_Fault && dcacheInterface) {
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memReq->cmd = Read;
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memReq->completionEvent = NULL;
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memReq->time = curTick;
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memReq->flags &= ~UNCACHEABLE;
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MemAccessResult result = dcacheInterface->access(memReq);
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// Ugly hack to get an event scheduled *only* if the access is
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// a miss. We really should add first-class support for this
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// at some point.
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if (result != MA_HIT && dcacheInterface->doEvents) {
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memReq->completionEvent = &cacheCompletionEvent;
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setStatus(DcacheMissStall);
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}
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}
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return fault;
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}
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#ifndef DOXYGEN_SHOULD_SKIP_THIS
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template
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Fault
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SimpleCPU::read(Addr addr, uint64_t& data, unsigned flags);
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template
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Fault
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SimpleCPU::read(Addr addr, uint32_t& data, unsigned flags);
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template
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Fault
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SimpleCPU::read(Addr addr, uint16_t& data, unsigned flags);
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template
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Fault
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SimpleCPU::read(Addr addr, uint8_t& data, unsigned flags);
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#endif //DOXYGEN_SHOULD_SKIP_THIS
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template<>
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Fault
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SimpleCPU::read(Addr addr, double& data, unsigned flags)
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{
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return read(addr, *(uint64_t*)&data, flags);
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}
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template<>
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Fault
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SimpleCPU::read(Addr addr, float& data, unsigned flags)
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{
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return read(addr, *(uint32_t*)&data, flags);
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}
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template<>
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Fault
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SimpleCPU::read(Addr addr, int32_t& data, unsigned flags)
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{
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return read(addr, (uint32_t&)data, flags);
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}
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template <class T>
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Fault
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SimpleCPU::write(T data, Addr addr, unsigned flags, uint64_t *res)
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{
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if (traceData) {
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traceData->setAddr(addr);
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traceData->setData(data);
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}
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memReq->reset(addr, sizeof(T), flags);
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// translate to physical address
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Fault fault = xc->translateDataWriteReq(memReq);
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// do functional access
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if (fault == No_Fault)
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fault = xc->write(memReq, data);
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if (fault == No_Fault && dcacheInterface) {
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memReq->cmd = Write;
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memcpy(memReq->data,(uint8_t *)&data,memReq->size);
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memReq->completionEvent = NULL;
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memReq->time = curTick;
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memReq->flags &= ~UNCACHEABLE;
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MemAccessResult result = dcacheInterface->access(memReq);
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// Ugly hack to get an event scheduled *only* if the access is
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// a miss. We really should add first-class support for this
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// at some point.
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if (result != MA_HIT && dcacheInterface->doEvents) {
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memReq->completionEvent = &cacheCompletionEvent;
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setStatus(DcacheMissStall);
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}
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}
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if (res && (fault == No_Fault))
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*res = memReq->result;
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return fault;
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}
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#ifndef DOXYGEN_SHOULD_SKIP_THIS
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template
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Fault
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SimpleCPU::write(uint64_t data, Addr addr, unsigned flags, uint64_t *res);
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template
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Fault
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SimpleCPU::write(uint32_t data, Addr addr, unsigned flags, uint64_t *res);
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template
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Fault
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SimpleCPU::write(uint16_t data, Addr addr, unsigned flags, uint64_t *res);
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template
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Fault
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SimpleCPU::write(uint8_t data, Addr addr, unsigned flags, uint64_t *res);
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#endif //DOXYGEN_SHOULD_SKIP_THIS
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template<>
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Fault
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SimpleCPU::write(double data, Addr addr, unsigned flags, uint64_t *res)
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{
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return write(*(uint64_t*)&data, addr, flags, res);
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}
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template<>
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Fault
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SimpleCPU::write(float data, Addr addr, unsigned flags, uint64_t *res)
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{
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return write(*(uint32_t*)&data, addr, flags, res);
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}
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template<>
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Fault
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SimpleCPU::write(int32_t data, Addr addr, unsigned flags, uint64_t *res)
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{
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return write((uint32_t)data, addr, flags, res);
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}
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#ifdef FULL_SYSTEM
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Addr
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SimpleCPU::dbg_vtophys(Addr addr)
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{
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return vtophys(xc, addr);
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}
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#endif // FULL_SYSTEM
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Tick save_cycle = 0;
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void
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SimpleCPU::processCacheCompletion()
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{
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switch (status()) {
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case IcacheMissStall:
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icacheStallCycles += curTick - lastIcacheStall;
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setStatus(IcacheMissComplete);
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break;
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case DcacheMissStall:
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dcacheStallCycles += curTick - lastDcacheStall;
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setStatus(Running);
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break;
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case SwitchedOut:
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// If this CPU has been switched out due to sampling/warm-up,
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// ignore any further status changes (e.g., due to cache
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// misses outstanding at the time of the switch).
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return;
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default:
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panic("SimpleCPU::processCacheCompletion: bad state");
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break;
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}
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}
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#ifdef FULL_SYSTEM
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void
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SimpleCPU::post_interrupt(int int_num, int index)
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{
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BaseCPU::post_interrupt(int_num, index);
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if (xc->status() == ExecContext::Suspended) {
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DPRINTF(IPI,"Suspended Processor awoke\n");
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xc->setStatus(ExecContext::Active);
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Annotate::Resume(xc);
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}
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}
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#endif // FULL_SYSTEM
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/* start simulation, program loaded, processor precise state initialized */
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void
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SimpleCPU::tick()
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{
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traceData = NULL;
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Fault fault = No_Fault;
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#ifdef FULL_SYSTEM
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if (AlphaISA::check_interrupts &&
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xc->cpu->check_interrupts() &&
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!PC_PAL(xc->regs.pc) &&
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status() != IcacheMissComplete) {
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int ipl = 0;
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int summary = 0;
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AlphaISA::check_interrupts = 0;
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IntReg *ipr = xc->regs.ipr;
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if (xc->regs.ipr[TheISA::IPR_SIRR]) {
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for (int i = TheISA::INTLEVEL_SOFTWARE_MIN;
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i < TheISA::INTLEVEL_SOFTWARE_MAX; i++) {
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if (ipr[TheISA::IPR_SIRR] & (ULL(1) << i)) {
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// See table 4-19 of 21164 hardware reference
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ipl = (i - TheISA::INTLEVEL_SOFTWARE_MIN) + 1;
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summary |= (ULL(1) << i);
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}
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}
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}
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uint64_t interrupts = xc->cpu->intr_status();
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for (int i = TheISA::INTLEVEL_EXTERNAL_MIN;
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i < TheISA::INTLEVEL_EXTERNAL_MAX; i++) {
|
|
if (interrupts & (ULL(1) << i)) {
|
|
// See table 4-19 of 21164 hardware reference
|
|
ipl = i;
|
|
summary |= (ULL(1) << i);
|
|
}
|
|
}
|
|
|
|
if (ipr[TheISA::IPR_ASTRR])
|
|
panic("asynchronous traps not implemented\n");
|
|
|
|
if (ipl && ipl > xc->regs.ipr[TheISA::IPR_IPLR]) {
|
|
ipr[TheISA::IPR_ISR] = summary;
|
|
ipr[TheISA::IPR_INTID] = ipl;
|
|
xc->ev5_trap(Interrupt_Fault);
|
|
|
|
DPRINTF(Flow, "Interrupt! IPLR=%d ipl=%d summary=%x\n",
|
|
ipr[TheISA::IPR_IPLR], ipl, summary);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
// maintain $r0 semantics
|
|
xc->regs.intRegFile[ZeroReg] = 0;
|
|
#ifdef TARGET_ALPHA
|
|
xc->regs.floatRegFile.d[ZeroReg] = 0.0;
|
|
#endif // TARGET_ALPHA
|
|
|
|
if (status() == IcacheMissComplete) {
|
|
// We've already fetched an instruction and were stalled on an
|
|
// I-cache miss. No need to fetch it again.
|
|
|
|
setStatus(Running);
|
|
}
|
|
else {
|
|
// Try to fetch an instruction
|
|
|
|
// set up memory request for instruction fetch
|
|
#ifdef FULL_SYSTEM
|
|
#define IFETCH_FLAGS(pc) ((pc) & 1) ? PHYSICAL : 0
|
|
#else
|
|
#define IFETCH_FLAGS(pc) 0
|
|
#endif
|
|
|
|
memReq->cmd = Read;
|
|
memReq->reset(xc->regs.pc & ~3, sizeof(uint32_t),
|
|
IFETCH_FLAGS(xc->regs.pc));
|
|
|
|
fault = xc->translateInstReq(memReq);
|
|
|
|
if (fault == No_Fault)
|
|
fault = xc->mem->read(memReq, inst);
|
|
|
|
if (icacheInterface && fault == No_Fault) {
|
|
memReq->completionEvent = NULL;
|
|
|
|
memReq->time = curTick;
|
|
memReq->flags &= ~UNCACHEABLE;
|
|
MemAccessResult result = icacheInterface->access(memReq);
|
|
|
|
// Ugly hack to get an event scheduled *only* if the access is
|
|
// a miss. We really should add first-class support for this
|
|
// at some point.
|
|
if (result != MA_HIT && icacheInterface->doEvents) {
|
|
memReq->completionEvent = &cacheCompletionEvent;
|
|
setStatus(IcacheMissStall);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
// If we've got a valid instruction (i.e., no fault on instruction
|
|
// fetch), then execute it.
|
|
if (fault == No_Fault) {
|
|
|
|
// keep an instruction count
|
|
numInst++;
|
|
|
|
// check for instruction-count-based events
|
|
comInsnEventQueue[0]->serviceEvents(numInst);
|
|
|
|
// decode the instruction
|
|
StaticInstPtr<TheISA> si(inst);
|
|
|
|
traceData = Trace::getInstRecord(curTick, xc, this, si,
|
|
xc->regs.pc);
|
|
|
|
#ifdef FULL_SYSTEM
|
|
xc->regs.opcode = (inst >> 26) & 0x3f;
|
|
xc->regs.ra = (inst >> 21) & 0x1f;
|
|
#endif // FULL_SYSTEM
|
|
|
|
xc->func_exe_insn++;
|
|
|
|
fault = si->execute(this, xc, traceData);
|
|
#ifdef FS_MEASURE
|
|
if (!(xc->misspeculating()) && (xc->system->bin)) {
|
|
SWContext *ctx = xc->swCtx;
|
|
if (ctx && !ctx->callStack.empty()) {
|
|
if (si->isCall()) {
|
|
ctx->calls++;
|
|
}
|
|
if (si->isReturn()) {
|
|
if (ctx->calls == 0) {
|
|
fnCall *top = ctx->callStack.top();
|
|
DPRINTF(TCPIP, "Removing %s from callstack.\n", top->name);
|
|
delete top;
|
|
ctx->callStack.pop();
|
|
if (ctx->callStack.empty())
|
|
xc->system->nonPath->activate();
|
|
else
|
|
ctx->callStack.top()->myBin->activate();
|
|
|
|
xc->system->dumpState(xc);
|
|
} else {
|
|
ctx->calls--;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
if (si->isMemRef()) {
|
|
numMemRefs++;
|
|
}
|
|
|
|
if (si->isLoad()) {
|
|
++numLoad;
|
|
comLoadEventQueue[0]->serviceEvents(numLoad);
|
|
}
|
|
|
|
if (traceData)
|
|
traceData->finalize();
|
|
|
|
} // if (fault == No_Fault)
|
|
|
|
if (fault != No_Fault) {
|
|
#ifdef FULL_SYSTEM
|
|
xc->ev5_trap(fault);
|
|
#else // !FULL_SYSTEM
|
|
fatal("fault (%d) detected @ PC 0x%08p", fault, xc->regs.pc);
|
|
#endif // FULL_SYSTEM
|
|
}
|
|
else {
|
|
// go to the next instruction
|
|
xc->regs.pc = xc->regs.npc;
|
|
xc->regs.npc += sizeof(MachInst);
|
|
}
|
|
|
|
#ifdef FULL_SYSTEM
|
|
Addr oldpc;
|
|
do {
|
|
oldpc = xc->regs.pc;
|
|
system->pcEventQueue.service(xc);
|
|
} while (oldpc != xc->regs.pc);
|
|
#endif
|
|
|
|
assert(status() == Running ||
|
|
status() == Idle ||
|
|
status() == DcacheMissStall);
|
|
|
|
if (status() == Running && !tickEvent.scheduled())
|
|
tickEvent.schedule(curTick + 1);
|
|
}
|
|
|
|
|
|
////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// SimpleCPU Simulation Object
|
|
//
|
|
BEGIN_DECLARE_SIM_OBJECT_PARAMS(SimpleCPU)
|
|
|
|
Param<Counter> max_insts_any_thread;
|
|
Param<Counter> max_insts_all_threads;
|
|
Param<Counter> max_loads_any_thread;
|
|
Param<Counter> max_loads_all_threads;
|
|
|
|
#ifdef FULL_SYSTEM
|
|
SimObjectParam<AlphaItb *> itb;
|
|
SimObjectParam<AlphaDtb *> dtb;
|
|
SimObjectParam<FunctionalMemory *> mem;
|
|
SimObjectParam<System *> system;
|
|
Param<int> mult;
|
|
#else
|
|
SimObjectParam<Process *> workload;
|
|
#endif // FULL_SYSTEM
|
|
|
|
SimObjectParam<BaseMem *> icache;
|
|
SimObjectParam<BaseMem *> dcache;
|
|
|
|
Param<bool> defer_registration;
|
|
|
|
END_DECLARE_SIM_OBJECT_PARAMS(SimpleCPU)
|
|
|
|
BEGIN_INIT_SIM_OBJECT_PARAMS(SimpleCPU)
|
|
|
|
INIT_PARAM_DFLT(max_insts_any_thread,
|
|
"terminate when any thread reaches this insn count",
|
|
0),
|
|
INIT_PARAM_DFLT(max_insts_all_threads,
|
|
"terminate when all threads have reached this insn count",
|
|
0),
|
|
INIT_PARAM_DFLT(max_loads_any_thread,
|
|
"terminate when any thread reaches this load count",
|
|
0),
|
|
INIT_PARAM_DFLT(max_loads_all_threads,
|
|
"terminate when all threads have reached this load count",
|
|
0),
|
|
|
|
#ifdef FULL_SYSTEM
|
|
INIT_PARAM(itb, "Instruction TLB"),
|
|
INIT_PARAM(dtb, "Data TLB"),
|
|
INIT_PARAM(mem, "memory"),
|
|
INIT_PARAM(system, "system object"),
|
|
INIT_PARAM_DFLT(mult, "system clock multiplier", 1),
|
|
#else
|
|
INIT_PARAM(workload, "processes to run"),
|
|
#endif // FULL_SYSTEM
|
|
|
|
INIT_PARAM_DFLT(icache, "L1 instruction cache object", NULL),
|
|
INIT_PARAM_DFLT(dcache, "L1 data cache object", NULL),
|
|
INIT_PARAM_DFLT(defer_registration, "defer registration with system "
|
|
"(for sampling)", false)
|
|
|
|
END_INIT_SIM_OBJECT_PARAMS(SimpleCPU)
|
|
|
|
|
|
CREATE_SIM_OBJECT(SimpleCPU)
|
|
{
|
|
SimpleCPU *cpu;
|
|
#ifdef FULL_SYSTEM
|
|
if (mult != 1)
|
|
panic("processor clock multiplier must be 1\n");
|
|
|
|
cpu = new SimpleCPU(getInstanceName(), system,
|
|
max_insts_any_thread, max_insts_all_threads,
|
|
max_loads_any_thread, max_loads_all_threads,
|
|
itb, dtb, mem,
|
|
(icache) ? icache->getInterface() : NULL,
|
|
(dcache) ? dcache->getInterface() : NULL,
|
|
ticksPerSecond * mult);
|
|
#else
|
|
|
|
cpu = new SimpleCPU(getInstanceName(), workload,
|
|
max_insts_any_thread, max_insts_all_threads,
|
|
max_loads_any_thread, max_loads_all_threads,
|
|
(icache) ? icache->getInterface() : NULL,
|
|
(dcache) ? dcache->getInterface() : NULL);
|
|
|
|
#endif // FULL_SYSTEM
|
|
|
|
if (!defer_registration) {
|
|
cpu->registerExecContexts();
|
|
}
|
|
|
|
return cpu;
|
|
}
|
|
|
|
REGISTER_SIM_OBJECT("SimpleCPU", SimpleCPU)
|