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ruby: single physical memory in fs mode

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Both ruby and the system used to maintain memory copies.  With the changes
carried for programmed io accesses, only one single memory is required for
fs simulations.  This patch sets the copy of memory that used to reside
with the system to null, so that no space is allocated, but address checks
can still be carried out.  All the memory accesses now source and sink values
to the memory maintained by ruby.
This commit is contained in:
Nilay Vaish
2014-11-06 05:41:44 -06:00
parent 8ccfd9defa
commit 95a0b18431
25 changed files with 155 additions and 98 deletions
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17
configs/ruby/MESI_Three_Level.py
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@@ -56,7 +56,7 @@ def define_options(parser):
caches private to clusters")
return
def create_system(options, system, dma_ports, ruby_system):
def create_system(options, full_system, system, dma_ports, ruby_system):
if buildEnv['PROTOCOL'] != 'MESI_Three_Level':
fatal("This script requires the MESI_Three_Level protocol to be built.")
@@ -231,5 +231,20 @@ def create_system(options, system, dma_ports, ruby_system):
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.responseFromDir = ruby_system.network.master
io_controller.requestToDir = ruby_system.network.slave
all_cntrls = all_cntrls + [io_controller]
topology = create_topology(all_cntrls, options)
return (cpu_sequencers, dir_cntrl_nodes, topology)