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ruby: Add support for address ranges in the directory

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Previously the directory covered a flat address range that always
started from address 0. This change adds a vector of address ranges
with interleaving and hashing that each directory keeps track of and
the necessary flexibility to support systems with non continuous
memory ranges.

Change-Id: I6ea1c629bdf4c5137b7d9c89dbaf6c826adfd977
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/2903
Reviewed-by: Bradford Beckmann <brad.beckmann@amd.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>
This commit is contained in:
Nikos Nikoleris
2017-03-13 18:19:08 +00:00
parent dd3fc1f996
commit 12db50c895
45 changed files with 577 additions and 416 deletions
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25
configs/ruby/MOESI_CMP_token.py
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@@ -31,7 +31,7 @@ import math
import m5
from m5.objects import *
from m5.defines import buildEnv
from Ruby import create_topology
from Ruby import create_topology, create_directories
from Ruby import send_evicts
#
@@ -70,7 +70,6 @@ def create_system(options, full_system, system, dma_ports, ruby_system):
#
l1_cntrl_nodes = []
l2_cntrl_nodes = []
dir_cntrl_nodes = []
dma_cntrl_nodes = []
#
@@ -184,10 +183,6 @@ def create_system(options, full_system, system, dma_ports, ruby_system):
l2_cntrl.persistentToL2Cache.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.
@@ -195,20 +190,10 @@ def create_system(options, full_system, system, dma_ports, ruby_system):
clk_domain=ruby_system.clk_domain,
clk_divider=3)
for i in xrange(options.num_dirs):
dir_size = MemorySize('0B')
dir_size.value = mem_module_size
dir_cntrl = Directory_Controller(version = i,
directory = RubyDirectoryMemory(
version = i, size = dir_size),
l2_select_num_bits = l2_bits,
transitions_per_cycle = options.ports,
ruby_system = ruby_system)
exec("ruby_system.dir_cntrl%d = dir_cntrl" % i)
dir_cntrl_nodes.append(dir_cntrl)
dir_cntrl_nodes = create_directories(options, system.mem_ranges,
ruby_system)
for dir_cntrl in dir_cntrl_nodes:
dir_cntrl.l2_select_num_bits = l2_bits
# Connect the directory controllers and the network
dir_cntrl.requestToDir = MessageBuffer()
dir_cntrl.requestToDir.slave = ruby_system.network.master