Commit graph

11 commits

Author SHA1 Message Date
Andreas Hansson
b00949d88b MEM: Enable multiple distributed generalized memories
This patch removes the assumption on having on single instance of
PhysicalMemory, and enables a distributed memory where the individual
memories in the system are each responsible for a single contiguous
address range.

All memories inherit from an AbstractMemory that encompasses the basic
behaviuor of a random access memory, and provides untimed access
methods. What was previously called PhysicalMemory is now
SimpleMemory, and a subclass of AbstractMemory. All future types of
memory controllers should inherit from AbstractMemory.

To enable e.g. the atomic CPU and RubyPort to access the now
distributed memory, the system has a wrapper class, called
PhysicalMemory that is aware of all the memories in the system and
their associated address ranges. This class thus acts as an
infinitely-fast bus and performs address decoding for these "shortcut"
accesses. Each memory can specify that it should not be part of the
global address map (used e.g. by the functional memories by some
testers). Moreover, each memory can be configured to be reported to
the OS configuration table, useful for populating ATAG structures, and
any potential ACPI tables.

Checkpointing support currently assumes that all memories have the
same size and organisation when creating and resuming from the
checkpoint. A future patch will enable a more flexible
re-organisation.

--HG--
rename : src/mem/PhysicalMemory.py => src/mem/AbstractMemory.py
rename : src/mem/PhysicalMemory.py => src/mem/SimpleMemory.py
rename : src/mem/physical.cc => src/mem/abstract_mem.cc
rename : src/mem/physical.hh => src/mem/abstract_mem.hh
rename : src/mem/physical.cc => src/mem/simple_mem.cc
rename : src/mem/physical.hh => src/mem/simple_mem.hh
2012-04-06 13:46:31 -04:00
Andreas Hansson
f1a6090613 Ruby: Fix the example configurations option parsing
This patch fixes the, currently broken, Ruby example scripts to
reflect the changes in the parsing of command-line options.
2012-04-05 10:45:26 -04:00
Andreas Hansson
00978170f3 MEM: Fix master/slave ports in Ruby and non-regression scripts
This patch brings the Ruby and other scripts up to date with the
introduction of the master/slave ports.
2012-02-14 03:41:53 -05:00
Gabe Black
d7f71bf424 SE/FS: Get rid of FULL_SYSTEM in the configs directory 2012-01-28 07:24:50 -08:00
Gabe Black
ec20ee2f7c SE/FS: Make SE vs. FS mode a runtime parameter. 2012-01-28 07:24:34 -08:00
Brad Beckmann
0b7b3766af config: removed unnecessary slashes
This patch removes unnecessary slashes from a couple of python scripts.
2011-06-30 19:54:02 -05:00
Brad Beckmann ext:(%2C%20Nilay%20Vaish%20%3Cnilay%40cs.wisc.edu%3E)
c86f849d5a Ruby: Add support for functional accesses
This patch rpovides functional access support in Ruby. Currently only
the M5Port of RubyPort supports functional accesses. The support for
functional through the PioPort will be added as a separate patch.
2011-06-30 19:49:26 -05:00
Steve Reinhardt
8a652f9871 config: tweak ruby configs to clean up hierarchy
Re-enabling implicit parenting (see previous patch) causes current
Ruby config scripts to create some strange hierarchies and generate
several warnings.  This patch makes three general changes to address
these issues.

1. The order of object creation in the ruby config files makes the L1
   caches children of the sequencer rather than the controller; these
   config ciles are rewritten to assign the L1 caches to the
   controller first.

2. The assignment of the sequencer list to system.ruby.cpu_ruby_ports
   causes the sequencers to be children of system.ruby, generating
   warnings because they are already parented to their respective
   controllers.  Changing this attribute to _cpu_ruby_ports fixes this
   because the leading underscore means this is now treated as a plain
   Python attribute rather than a child assignment. As a result, the
   configuration hierarchy changes such that, e.g.,
   system.ruby.cpu_ruby_ports0 becomes system.l1_cntrl0.sequencer.

3. In the topology classes, the routers become children of some random
   internal link node rather than direct children of the topology.
   The topology classes are rewritten to assign the routers to the
   topology object first.
2011-05-23 14:29:23 -07:00
Tushar Krishna
de97d75965 configs: remove -p from ruby_network_test.py
A recent patch broke the ruby network tester by adding -p inside Options.py
which conflicts with the -p inside ruby_network_test.py.
Have removed -p from ruby_network_test.py
2011-05-21 00:00:54 -04:00
Tushar Krishna
1267ff5949 NetworkTest: added sim_cycles parameter to the network tester.
The network tester terminates after injecting for sim_cycles
(default=1000), instead of having to explicitly pass --maxticks from the
command line as before. If fixed_pkts is enabled, the tester only
injects maxpackets number of packets, else it keeps injecting till sim_cycles.
The tester also works with zero command line arguments now.
2011-05-07 17:43:30 -04:00
Tushar Krishna
09c3a97a4c This patch adds the network tester for simple and garnet networks.
The tester code is in testers/networktest.
The tester can be invoked by configs/example/ruby_network_test.py.
A dummy coherence protocol called Network_test is also addded for network-only simulations and testing. The protocol takes in messages from the tester and just pushes them into the network in the appropriate vnet, without storing any state.
2011-03-21 22:51:58 -04:00