| # Copyright (c) 2006-2007 The Regents of The University of Michigan |
| # Copyright (c) 2009 Advanced Micro Devices, Inc. |
| # 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: Brad Beckmann |
| |
| import math |
| import m5 |
| from m5.objects import * |
| from m5.defines import buildEnv |
| from .Ruby import create_topology, create_directories |
| from .Ruby import send_evicts |
| |
| # |
| # Declare caches used by the protocol |
| # |
| class L1Cache(RubyCache): pass |
| |
| def define_options(parser): |
| return |
| |
| def create_system(options, full_system, system, dma_ports, bootmem, |
| ruby_system): |
| |
| if buildEnv['PROTOCOL'] != 'MI_example': |
| panic("This script requires the MI_example protocol to be built.") |
| |
| cpu_sequencers = [] |
| |
| # |
| # The ruby network creation expects the list of nodes in the system to be |
| # consistent with the NetDest list. Therefore the l1 controller nodes must be |
| # listed before the directory nodes and directory nodes before dma nodes, etc. |
| # |
| l1_cntrl_nodes = [] |
| dma_cntrl_nodes = [] |
| |
| # |
| # Must create the individual controllers before the network to ensure the |
| # controller constructors are called before the network constructor |
| # |
| block_size_bits = int(math.log(options.cacheline_size, 2)) |
| |
| for i in range(options.num_cpus): |
| # |
| # First create the Ruby objects associated with this cpu |
| # Only one cache exists for this protocol, so by default use the L1D |
| # config parameters. |
| # |
| cache = L1Cache(size = options.l1d_size, |
| assoc = options.l1d_assoc, |
| start_index_bit = block_size_bits) |
| |
| |
| # the ruby random tester reuses num_cpus to specify the |
| # number of cpu ports connected to the tester object, which |
| # is stored in system.cpu. because there is only ever one |
| # tester object, num_cpus is not necessarily equal to the |
| # size of system.cpu; therefore if len(system.cpu) == 1 |
| # we use system.cpu[0] to set the clk_domain, thereby ensuring |
| # we don't index off the end of the cpu list. |
| if len(system.cpu) == 1: |
| clk_domain = system.cpu[0].clk_domain |
| else: |
| clk_domain = system.cpu[i].clk_domain |
| |
| # Only one unified L1 cache exists. Can cache instructions and data. |
| l1_cntrl = L1Cache_Controller(version=i, cacheMemory=cache, |
| send_evictions=send_evicts(options), |
| transitions_per_cycle=options.ports, |
| clk_domain=clk_domain, |
| ruby_system=ruby_system) |
| |
| cpu_seq = RubySequencer(version=i, icache=cache, dcache=cache, |
| clk_domain=clk_domain, ruby_system=ruby_system) |
| |
| l1_cntrl.sequencer = cpu_seq |
| exec("ruby_system.l1_cntrl%d = l1_cntrl" % i) |
| |
| # Add controllers and sequencers to the appropriate lists |
| cpu_sequencers.append(cpu_seq) |
| l1_cntrl_nodes.append(l1_cntrl) |
| |
| # Connect the L1 controllers and the network |
| l1_cntrl.mandatoryQueue = MessageBuffer() |
| l1_cntrl.requestFromCache = MessageBuffer(ordered = True) |
| l1_cntrl.requestFromCache.master = ruby_system.network.slave |
| l1_cntrl.responseFromCache = MessageBuffer(ordered = True) |
| l1_cntrl.responseFromCache.master = ruby_system.network.slave |
| l1_cntrl.forwardToCache = MessageBuffer(ordered = True) |
| l1_cntrl.forwardToCache.slave = ruby_system.network.master |
| l1_cntrl.responseToCache = MessageBuffer(ordered = True) |
| l1_cntrl.responseToCache.slave = ruby_system.network.master |
| |
| phys_mem_size = sum(map(lambda r: r.size(), system.mem_ranges)) |
| assert(phys_mem_size % options.num_dirs == 0) |
| mem_module_size = phys_mem_size / options.num_dirs |
| |
| # Run each of the ruby memory controllers at a ratio of the frequency of |
| # the ruby system. |
| # clk_divider value is a fix to pass regression. |
| ruby_system.memctrl_clk_domain = DerivedClockDomain( |
| clk_domain=ruby_system.clk_domain, |
| clk_divider=3) |
| |
| mem_dir_cntrl_nodes, rom_dir_cntrl_node = create_directories( |
| options, bootmem, ruby_system, system) |
| dir_cntrl_nodes = mem_dir_cntrl_nodes[:] |
| if rom_dir_cntrl_node is not None: |
| dir_cntrl_nodes.append(rom_dir_cntrl_node) |
| for dir_cntrl in dir_cntrl_nodes: |
| # Connect the directory controllers and the network |
| dir_cntrl.requestToDir = MessageBuffer(ordered = True) |
| dir_cntrl.requestToDir.slave = ruby_system.network.master |
| dir_cntrl.dmaRequestToDir = MessageBuffer(ordered = True) |
| dir_cntrl.dmaRequestToDir.slave = ruby_system.network.master |
| |
| dir_cntrl.responseFromDir = MessageBuffer() |
| dir_cntrl.responseFromDir.master = ruby_system.network.slave |
| dir_cntrl.dmaResponseFromDir = MessageBuffer(ordered = True) |
| dir_cntrl.dmaResponseFromDir.master = ruby_system.network.slave |
| dir_cntrl.forwardFromDir = MessageBuffer() |
| dir_cntrl.forwardFromDir.master = ruby_system.network.slave |
| dir_cntrl.responseFromMemory = MessageBuffer() |
| |
| |
| for i, dma_port in enumerate(dma_ports): |
| # |
| # Create the Ruby objects associated with the dma controller |
| # |
| dma_seq = DMASequencer(version = i, |
| ruby_system = ruby_system) |
| |
| dma_cntrl = DMA_Controller(version = i, |
| dma_sequencer = dma_seq, |
| transitions_per_cycle = options.ports, |
| ruby_system = ruby_system) |
| |
| exec("ruby_system.dma_cntrl%d = dma_cntrl" % i) |
| exec("ruby_system.dma_cntrl%d.dma_sequencer.slave = dma_port" % i) |
| dma_cntrl_nodes.append(dma_cntrl) |
| |
| # Connect the directory controllers and the network |
| dma_cntrl.mandatoryQueue = MessageBuffer() |
| dma_cntrl.requestToDir = MessageBuffer() |
| dma_cntrl.requestToDir.master = ruby_system.network.slave |
| dma_cntrl.responseFromDir = MessageBuffer(ordered = True) |
| dma_cntrl.responseFromDir.slave = ruby_system.network.master |
| |
| all_cntrls = l1_cntrl_nodes + dir_cntrl_nodes + dma_cntrl_nodes |
| |
| # Create the io controller and the sequencer |
| if full_system: |
| io_seq = DMASequencer(version=len(dma_ports), ruby_system=ruby_system) |
| ruby_system._io_port = io_seq |
| io_controller = DMA_Controller(version = len(dma_ports), |
| dma_sequencer = io_seq, |
| ruby_system = ruby_system) |
| ruby_system.io_controller = io_controller |
| |
| # Connect the dma controller to the network |
| io_controller.mandatoryQueue = MessageBuffer() |
| io_controller.requestToDir = MessageBuffer() |
| io_controller.requestToDir.master = ruby_system.network.slave |
| io_controller.responseFromDir = MessageBuffer(ordered = True) |
| io_controller.responseFromDir.slave = ruby_system.network.master |
| |
| all_cntrls = all_cntrls + [io_controller] |
| |
| ruby_system.network.number_of_virtual_networks = 5 |
| topology = create_topology(all_cntrls, options) |
| return (cpu_sequencers, mem_dir_cntrl_nodes, topology) |
