ruby: Support for merging ALPHA_FS and ruby

Connects M5 cpu and dma ports directly to ruby sequencers and dma
sequencers.  Rubymem also includes a pio port so that pio requests
and be forwarded to a special pio bus connecting to device pio
ports.

1 files changed, 182 insertions, 0 deletions

diff --git a/configs/example/ruby_fs.py b/configs/example/ruby_fs.py
new file mode 100644
index 000000000..d27eae596
--- /dev/null
+++ b/configs/example/ruby_fs.py
@@ -0,0 +1,182 @@
+# 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
+
+#
+# Full system configuraiton for ruby
+#
+
+import os
+import optparse
+import sys
+from os.path import join as joinpath
+
+import m5
+from m5.defines import buildEnv
+from m5.objects import *
+from m5.util import addToPath, panic
+
+if not buildEnv['FULL_SYSTEM']:
+    panic("This script requires full-system mode (*_FS).")
+
+addToPath('../../tests/configs/')
+addToPath('../common')
+
+import ruby_config
+
+from FSConfig import *
+from SysPaths import *
+from Benchmarks import *
+import Simulation
+from Caches import *
+
+# Get paths we might need.  It's expected this file is in m5/configs/example.
+config_path = os.path.dirname(os.path.abspath(__file__))
+config_root = os.path.dirname(config_path)
+m5_root = os.path.dirname(config_root)
+
+parser = optparse.OptionParser()
+
+# Benchmark options
+parser.add_option("-b", "--benchmark", action="store", type="string",
+                  dest="benchmark",
+                  help="Specify the benchmark to run. Available benchmarks: %s"\
+                  % DefinedBenchmarks)
+parser.add_option("-o", "--options", default="",
+    help='The options to pass to the binary, use " " around the entire string')
+parser.add_option("-i", "--input", default="", help="Read stdin from a file.")
+parser.add_option("--output", default="", help="Redirect stdout to a file.")
+parser.add_option("--errout", default="", help="Redirect stderr to a file.")
+parser.add_option("--ruby-debug", action="store_true")
+parser.add_option("--ruby-debug-file", default="", help="Ruby debug out file (stdout if blank)")
+
+# ruby host memory experimentation
+parser.add_option("--cache_size", type="int")
+parser.add_option("--cache_assoc", type="int")
+parser.add_option("--map_levels", type="int")
+
+execfile(os.path.join(config_root, "common", "Options.py"))
+
+(options, args) = parser.parse_args()
+
+if args:
+    print "Error: script doesn't take any positional arguments"
+    sys.exit(1)
+
+if options.benchmark:
+    try:
+        bm = Benchmarks[options.benchmark]
+    except KeyError:
+        print "Error benchmark %s has not been defined." % options.benchmark
+        print "Valid benchmarks are: %s" % DefinedBenchmarks
+        sys.exit(1)
+else:
+    bm = [SysConfig()]
+
+#
+# currently ruby fs only works in timing mode because ruby does not support
+# atomic accesses by devices
+#
+assert(options.timing)
+
+(CPUClass, test_mem_mode, FutureClass) = Simulation.setCPUClass(options)
+
+CPUClass.clock = '1GHz'
+
+#
+# Since we are running in timing mode, set the number of M5 ticks to ruby ticks
+# to the cpu clock frequency
+#
+M5_to_ruby_tick = '1000t'
+
+np = options.num_cpus
+
+# check for max instruction count
+if options.max_inst:
+    max_inst = options.max_inst
+else:
+    max_inst = 0
+    
+# set cache size
+if options.cache_size:
+    cache_size = options.cache_size
+else:
+    cache_size = 32768 # 32 kB is default
+    
+# set cache assoc
+if options.cache_assoc:
+    cache_assoc = options.cache_assoc
+else:
+    cache_assoc = 8 # 8 is default
+    
+# set map levels
+if options.map_levels:
+    map_levels = options.map_levels
+else:
+    map_levels = 4 # 4 levels is the default
+
+#
+# Currently, since ruby configuraiton is separate from m5, we need to manually
+# tell ruby that two dma ports are created by makeLinuxAlphaRubySystem().
+# Eventually, this will be fix with a unified configuration system.
+#
+rubymem = ruby_config.generate("MI_example-homogeneous.rb",
+                               np,
+                               np,
+                               128,
+                               False,
+                               cache_size,
+                               cache_assoc,
+                               map_levels,
+                               2,
+                               M5_to_ruby_tick)
+
+if options.ruby_debug == True:
+  rubymem.debug = True
+  rubymem.debug_file = options.ruby_debug_file
+
+system = makeLinuxAlphaRubySystem(test_mem_mode, rubymem, bm[0])
+
+system.cpu = [CPUClass(cpu_id=i) for i in xrange(np)]
+
+if options.l2cache:
+    print "Error: -l2cache incompatible with ruby, must configure it ruby-style"
+    sys.exit(1)
+
+if options.caches:
+    print "Error: -caches incompatible with ruby, must configure it ruby-style"
+    sys.exit(1)
+
+for i in xrange(np):
+    system.cpu[i].connectMemPorts(system.physmem)
+
+    if options.fastmem:
+        system.cpu[i].physmem_port = system.physmem.port
+
+root = Root(system = system)
+
+Simulation.run(options, root, system, FutureClass)