3022d463fb
This patch is the final in the series. The whole series and this patch in particular were written with the aim of interfacing ruby's directory controller with the memory controller in the classic memory system. This is being done since ruby's memory controller has not being kept up to date with the changes going on in DRAMs. Classic's memory controller is more up to date and supports multiple different types of DRAM. This also brings classic and ruby ever more close. The patch also changes ruby's memory controller to expose the same interface.
314 lines
12 KiB
Python
314 lines
12 KiB
Python
# Copyright (c) 2010-2013 ARM Limited
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# All rights reserved.
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#
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# The license below extends only to copyright in the software and shall
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# not be construed as granting a license to any other intellectual
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# property including but not limited to intellectual property relating
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# to a hardware implementation of the functionality of the software
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# licensed hereunder. You may use the software subject to the license
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# terms below provided that you ensure that this notice is replicated
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# unmodified and in its entirety in all distributions of the software,
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# modified or unmodified, in source code or in binary form.
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#
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# Copyright (c) 2012-2014 Mark D. Hill and David A. Wood
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# Copyright (c) 2009-2011 Advanced Micro Devices, Inc.
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# Copyright (c) 2006-2007 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: Ali Saidi
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# Brad Beckmann
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import optparse
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import sys
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import m5
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from m5.defines import buildEnv
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from m5.objects import *
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from m5.util import addToPath, fatal
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addToPath('../common')
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addToPath('../ruby')
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import Ruby
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from FSConfig import *
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from SysPaths import *
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from Benchmarks import *
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import Simulation
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import CacheConfig
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import MemConfig
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from Caches import *
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import Options
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# Check if KVM support has been enabled, we might need to do VM
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# configuration if that's the case.
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have_kvm_support = 'BaseKvmCPU' in globals()
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def is_kvm_cpu(cpu_class):
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return have_kvm_support and cpu_class != None and \
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issubclass(cpu_class, BaseKvmCPU)
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def build_test_system(np):
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if buildEnv['TARGET_ISA'] == "alpha":
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test_sys = makeLinuxAlphaSystem(test_mem_mode, bm[0], options.ruby)
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elif buildEnv['TARGET_ISA'] == "mips":
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test_sys = makeLinuxMipsSystem(test_mem_mode, bm[0])
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elif buildEnv['TARGET_ISA'] == "sparc":
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test_sys = makeSparcSystem(test_mem_mode, bm[0])
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elif buildEnv['TARGET_ISA'] == "x86":
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test_sys = makeLinuxX86System(test_mem_mode, options.num_cpus, bm[0],
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options.ruby)
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elif buildEnv['TARGET_ISA'] == "arm":
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test_sys = makeArmSystem(test_mem_mode, options.machine_type,
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options.num_cpus, bm[0], options.dtb_filename,
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bare_metal=options.bare_metal)
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if options.enable_context_switch_stats_dump:
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test_sys.enable_context_switch_stats_dump = True
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else:
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fatal("Incapable of building %s full system!", buildEnv['TARGET_ISA'])
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# Set the cache line size for the entire system
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test_sys.cache_line_size = options.cacheline_size
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# Create a top-level voltage domain
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test_sys.voltage_domain = VoltageDomain(voltage = options.sys_voltage)
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# Create a source clock for the system and set the clock period
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test_sys.clk_domain = SrcClockDomain(clock = options.sys_clock,
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voltage_domain = test_sys.voltage_domain)
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# Create a CPU voltage domain
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test_sys.cpu_voltage_domain = VoltageDomain()
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# Create a source clock for the CPUs and set the clock period
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test_sys.cpu_clk_domain = SrcClockDomain(clock = options.cpu_clock,
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voltage_domain =
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test_sys.cpu_voltage_domain)
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if options.kernel is not None:
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test_sys.kernel = binary(options.kernel)
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if options.script is not None:
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test_sys.readfile = options.script
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if options.lpae:
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test_sys.have_lpae = True
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if options.virtualisation:
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test_sys.have_virtualization = True
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test_sys.init_param = options.init_param
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# For now, assign all the CPUs to the same clock domain
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test_sys.cpu = [TestCPUClass(clk_domain=test_sys.cpu_clk_domain, cpu_id=i)
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for i in xrange(np)]
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if is_kvm_cpu(TestCPUClass) or is_kvm_cpu(FutureClass):
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test_sys.vm = KvmVM()
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if options.ruby:
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# Check for timing mode because ruby does not support atomic accesses
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if not (options.cpu_type == "detailed" or options.cpu_type == "timing"):
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print >> sys.stderr, "Ruby requires TimingSimpleCPU or O3CPU!!"
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sys.exit(1)
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Ruby.create_system(options, True, test_sys, test_sys.iobus,
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test_sys._dma_ports)
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# Create a seperate clock domain for Ruby
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test_sys.ruby.clk_domain = SrcClockDomain(clock = options.ruby_clock,
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voltage_domain = test_sys.voltage_domain)
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for (i, cpu) in enumerate(test_sys.cpu):
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#
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# Tie the cpu ports to the correct ruby system ports
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#
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cpu.clk_domain = test_sys.cpu_clk_domain
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cpu.createThreads()
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cpu.createInterruptController()
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cpu.icache_port = test_sys.ruby._cpu_ports[i].slave
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cpu.dcache_port = test_sys.ruby._cpu_ports[i].slave
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if buildEnv['TARGET_ISA'] == "x86":
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cpu.itb.walker.port = test_sys.ruby._cpu_ports[i].slave
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cpu.dtb.walker.port = test_sys.ruby._cpu_ports[i].slave
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cpu.interrupts.pio = test_sys.ruby._cpu_ports[i].master
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cpu.interrupts.int_master = test_sys.ruby._cpu_ports[i].slave
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cpu.interrupts.int_slave = test_sys.ruby._cpu_ports[i].master
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# Connect the ruby io port to the PIO bus,
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# assuming that there is just one such port.
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test_sys.iobus.master = test_sys.ruby._io_port.slave
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else:
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if options.caches or options.l2cache:
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# By default the IOCache runs at the system clock
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test_sys.iocache = IOCache(addr_ranges = test_sys.mem_ranges)
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test_sys.iocache.cpu_side = test_sys.iobus.master
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test_sys.iocache.mem_side = test_sys.membus.slave
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else:
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test_sys.iobridge = Bridge(delay='50ns', ranges = test_sys.mem_ranges)
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test_sys.iobridge.slave = test_sys.iobus.master
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test_sys.iobridge.master = test_sys.membus.slave
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# Sanity check
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if options.fastmem:
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if TestCPUClass != AtomicSimpleCPU:
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fatal("Fastmem can only be used with atomic CPU!")
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if (options.caches or options.l2cache):
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fatal("You cannot use fastmem in combination with caches!")
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for i in xrange(np):
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if options.fastmem:
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test_sys.cpu[i].fastmem = True
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if options.checker:
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test_sys.cpu[i].addCheckerCpu()
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test_sys.cpu[i].createThreads()
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CacheConfig.config_cache(options, test_sys)
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MemConfig.config_mem(options, test_sys)
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return test_sys
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def build_drive_system(np):
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# driver system CPU is always simple, so is the memory
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# Note this is an assignment of a class, not an instance.
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DriveCPUClass = AtomicSimpleCPU
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drive_mem_mode = 'atomic'
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DriveMemClass = SimpleMemory
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if buildEnv['TARGET_ISA'] == 'alpha':
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drive_sys = makeLinuxAlphaSystem(drive_mem_mode, bm[1])
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elif buildEnv['TARGET_ISA'] == 'mips':
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drive_sys = makeLinuxMipsSystem(drive_mem_mode, bm[1])
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elif buildEnv['TARGET_ISA'] == 'sparc':
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drive_sys = makeSparcSystem(drive_mem_mode, bm[1])
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elif buildEnv['TARGET_ISA'] == 'x86':
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drive_sys = makeLinuxX86System(drive_mem_mode, np, bm[1])
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elif buildEnv['TARGET_ISA'] == 'arm':
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drive_sys = makeArmSystem(drive_mem_mode, options.machine_type, bm[1])
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# Create a top-level voltage domain
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drive_sys.voltage_domain = VoltageDomain(voltage = options.sys_voltage)
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# Create a source clock for the system and set the clock period
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drive_sys.clk_domain = SrcClockDomain(clock = options.sys_clock,
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voltage_domain = drive_sys.voltage_domain)
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# Create a CPU voltage domain
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drive_sys.cpu_voltage_domain = VoltageDomain()
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# Create a source clock for the CPUs and set the clock period
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drive_sys.cpu_clk_domain = SrcClockDomain(clock = options.cpu_clock,
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voltage_domain =
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drive_sys.cpu_voltage_domain)
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drive_sys.cpu = DriveCPUClass(clk_domain=drive_sys.cpu_clk_domain,
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cpu_id=0)
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drive_sys.cpu.createThreads()
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drive_sys.cpu.createInterruptController()
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drive_sys.cpu.connectAllPorts(drive_sys.membus)
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if options.fastmem:
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drive_sys.cpu.fastmem = True
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if options.kernel is not None:
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drive_sys.kernel = binary(options.kernel)
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if is_kvm_cpu(DriveCPUClass):
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drive_sys.vm = KvmVM()
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drive_sys.iobridge = Bridge(delay='50ns',
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ranges = drive_sys.mem_ranges)
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drive_sys.iobridge.slave = drive_sys.iobus.master
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drive_sys.iobridge.master = drive_sys.membus.slave
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# Create the appropriate memory controllers and connect them to the
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# memory bus
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drive_sys.mem_ctrls = [DriveMemClass(range = r)
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for r in drive_sys.mem_ranges]
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for i in xrange(len(drive_sys.mem_ctrls)):
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drive_sys.mem_ctrls[i].port = drive_sys.membus.master
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drive_sys.init_param = options.init_param
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return drive_sys
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# Add options
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parser = optparse.OptionParser()
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Options.addCommonOptions(parser)
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Options.addFSOptions(parser)
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# Add the ruby specific and protocol specific options
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if '--ruby' in sys.argv:
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Ruby.define_options(parser)
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(options, args) = parser.parse_args()
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if args:
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print "Error: script doesn't take any positional arguments"
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sys.exit(1)
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# system under test can be any CPU
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(TestCPUClass, test_mem_mode, FutureClass) = Simulation.setCPUClass(options)
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# Match the memories with the CPUs, based on the options for the test system
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TestMemClass = Simulation.setMemClass(options)
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if options.benchmark:
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try:
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bm = Benchmarks[options.benchmark]
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except KeyError:
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print "Error benchmark %s has not been defined." % options.benchmark
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print "Valid benchmarks are: %s" % DefinedBenchmarks
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sys.exit(1)
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else:
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if options.dual:
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bm = [SysConfig(disk=options.disk_image, mem=options.mem_size),
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SysConfig(disk=options.disk_image, mem=options.mem_size)]
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else:
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bm = [SysConfig(disk=options.disk_image, mem=options.mem_size)]
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np = options.num_cpus
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test_sys = build_test_system(np)
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if len(bm) == 2:
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drive_sys = build_drive_system(np)
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root = makeDualRoot(True, test_sys, drive_sys, options.etherdump)
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elif len(bm) == 1:
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root = Root(full_system=True, system=test_sys)
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else:
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print "Error I don't know how to create more than 2 systems."
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sys.exit(1)
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if options.timesync:
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root.time_sync_enable = True
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if options.frame_capture:
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VncServer.frame_capture = True
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Simulation.setWorkCountOptions(test_sys, options)
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Simulation.run(options, root, test_sys, FutureClass)
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