Commit graph

991 commits

Author SHA1 Message Date
Tushar Krishna
3d06ffa7d5 slicc: added vnet_type to MI_example
Forgot to add this to MI_example in my previous patch.
2011-05-20 05:06:43 -04:00
Tushar Krishna
3ed048e4f5 slicc: added vnet_type field to identify response vnets from others
Identifying response vnets versus other vnets will allow garnet to
determine which vnets will carry data packets, and which will carry
ctrl packets, and use appropriate buffer sizes (since data packets are larger
than ctrl packets). This in turn allows the orion power model to accurately
estimate buffer power.
2011-05-18 03:06:07 -04:00
Tushar Krishna
26eaba4cb5 garnet: rename and rearrange config parameters.
Renamed (message) class to vnet for consistency with rest of ruby.
Moved some parameters specific to fixed/flexible garnet networks into their
corresponding py files.
2011-05-18 03:04:14 -04:00
Tushar Krishna
770f2ce330 network: added Torus and Pt2Pt topologies 2011-05-07 17:28:15 -04:00
Korey Sewell
a0415f2b24 ruby: use RubyMemory flag & remove setDebug() functionality
The RubyMemory flag wasnt used in the code, creating large gaps in trace output. Replace cprintfs w/dprintfs
using RubyMemory in memory controller. DPRINTF also deprecate the usage of the setDebug() pure virtual
function in the AbstractMemoryOrCache Class as well the m_debug/cprintf functions in MemoryControl.hh/cc
2011-05-05 02:20:31 -04:00
Korey Sewell
dd95bc4d44 ruby: dbg: use system ticks instead of cycles 2011-05-02 00:16:14 -04:00
Brad Beckmann
93a50fc318 network: set the ExtLink bw to 16 bytes
Therefore all links by default are 16 bytes wide and thus work with Garnet's
uniform link bandwidth assumption.
2011-04-28 17:18:14 -07:00
Brad Beckmann
6c7429dbe3 garnet: removed flit_width from Routers 2011-04-28 17:18:14 -07:00
Brad Beckmann
651cfbab03 network: adjusted default endpoint bandwidth
The simple network's endpoint bandwidth value is used to adjust the overall
bandwidth of the network.  Specifically, the ration between endpoint bandwidth
and the MESSAGE_SIZE_MULTIPLIER determines the increase.  By setting the value
to 1000, that means the bandwdith factor specified in the links translates to
the link bandwidth in bytes.  Previously, it was increasing that value by 10.

This patch will likely require a reset of the ruby regression tester stats.
2011-04-28 17:18:14 -07:00
Brad Beckmann
887e2df5a3 network: removed the unused network-wide latency param 2011-04-28 17:18:14 -07:00
Brad Beckmann
491cc1a9f4 network: moved network config params
Moved the buffer_size, endpoint_bandwidth, and adaptive_routing params out of
the top-level parent network object and to only those networks that actually
use those parameters.
2011-04-28 17:18:14 -07:00
Brad Beckmann
8733ed4b7d network: basic link bw for garnet and simple networks
This patch ensures that both Garnet and the simple networks use the bw value
specified in the topology.  To do so, the patch generalizes the specification
of bw for basic links.  This value is then translated to the specific value
used by the simple and Garnet networks.  Since Garent does not support
non-uniformed link bandwidth, the patch also adds a check to ensure all bws are
equal.

--HG--
rename : src/mem/ruby/network/BasicLink.cc => src/mem/ruby/network/simple/SimpleLink.cc
rename : src/mem/ruby/network/BasicLink.hh => src/mem/ruby/network/simple/SimpleLink.hh
rename : src/mem/ruby/network/BasicLink.py => src/mem/ruby/network/simple/SimpleLink.py
2011-04-28 17:18:14 -07:00
Brad Beckmann
40bcbf4253 network: convert links & switches to first class C++ SimObjects
This patch converts links and switches from second class simobjects that were
virtually ignored by the networks (both simple and Garnet) to first class
simobjects that directly correspond to c++ ojbects manipulated by the
topology and network classes.  This is especially true for Garnet, where the
links and switches directly correspond to specific C++ objects.

By making this change, many aspects of the Topology class were simplified.

--HG--
rename : src/mem/ruby/network/Network.cc => src/mem/ruby/network/BasicLink.cc
rename : src/mem/ruby/network/Network.hh => src/mem/ruby/network/BasicLink.hh
rename : src/mem/ruby/network/Network.cc => src/mem/ruby/network/garnet/fixed-pipeline/GarnetLink_d.cc
rename : src/mem/ruby/network/Network.hh => src/mem/ruby/network/garnet/fixed-pipeline/GarnetLink_d.hh
rename : src/mem/ruby/network/garnet/fixed-pipeline/GarnetNetwork_d.py => src/mem/ruby/network/garnet/fixed-pipeline/GarnetLink_d.py
rename : src/mem/ruby/network/garnet/fixed-pipeline/GarnetNetwork_d.py => src/mem/ruby/network/garnet/fixed-pipeline/GarnetRouter_d.py
rename : src/mem/ruby/network/Network.cc => src/mem/ruby/network/garnet/flexible-pipeline/GarnetLink.cc
rename : src/mem/ruby/network/Network.hh => src/mem/ruby/network/garnet/flexible-pipeline/GarnetLink.hh
rename : src/mem/ruby/network/garnet/fixed-pipeline/GarnetNetwork_d.py => src/mem/ruby/network/garnet/flexible-pipeline/GarnetLink.py
rename : src/mem/ruby/network/garnet/fixed-pipeline/GarnetNetwork_d.py => src/mem/ruby/network/garnet/flexible-pipeline/GarnetRouter.py
2011-04-28 17:18:14 -07:00
Brad Beckmann
bc5eb59605 garnet: cleaned up flexible network header file 2011-04-28 17:18:12 -07:00
Brad Beckmann
cf9ce2cf28 ruby: moved topology to the top network directory
Moved the Topology class to the top network directory because it is shared by
both the simple and Garnet networks.

--HG--
rename : src/mem/ruby/network/simple/Topology.cc => src/mem/ruby/network/Topology.cc
rename : src/mem/ruby/network/simple/Topology.hh => src/mem/ruby/network/Topology.hh
2011-04-28 17:18:12 -07:00
Brad Beckmann
7adb8fa94b ruby: removed dated comment in SimpleNetwork 2011-04-28 17:18:12 -07:00
Nathan Binkert
99fbd18ea5 fix some build problems from prior changesets 2011-04-20 18:45:03 -07:00
Nathan Binkert
63371c8664 stats: rename stats so they can be used as python expressions 2011-04-19 18:45:21 -07:00
Nathan Binkert
eddac53ff6 trace: reimplement the DTRACE function so it doesn't use a vector
At the same time, rename the trace flags to debug flags since they
have broader usage than simply tracing.  This means that
--trace-flags is now --debug-flags and --trace-help is now --debug-help
2011-04-15 10:44:32 -07:00
Nathan Binkert
39a055645f includes: sort all includes 2011-04-15 10:44:06 -07:00
Brad Beckmann
95faf1904b ruby: fixes to support more types of RubyRequests 2011-04-06 14:41:41 -07:00
Brad Beckmann
0788ea7b3b hammer: fixed dma uniproc error
Fixed an error reguarding DMA for uninprocessor systems.  Basically removed an
overly agressive optimization that lead to inconsistent state between the
cache and the directory.
2011-04-01 15:50:23 -07:00
Lisa Hsu
01fc529bb2 CacheMemory: add allocateVoid() that is == allocate() but no return value.
This function duplicates the functionality of allocate() exactly, except that it does not return
a return value.  In protocols where you just want to allocate a block
but do not want that block to be your implicitly passed cache_entry, use this function.
Otherwise, SLICC will complain if you do not consume the pointer returned by allocate(),
and if you do a dummy assignment Entry foo := cache.allocate(address), the C++
compiler will complain of an unused variable.  This is kind of a hack to get around
those issues, but suggestions welcome.
2011-03-31 18:20:12 -07:00
Lisa Hsu
d857105b5a Ruby: Simplify SLICC and Entry/TBE handling.
Before this changeset, all local variables of type Entry and TBE were considered
to be pointers, but an immediate use of said variables would not be automatically
deferenced in SLICC-generated code.  Instead, deferences occurred when such
variables were passed to functions, and were automatically dereferenced in
the bodies of the functions (e.g. the implicitly passed cache_entry).

This is a more general way to do it, which leaves in place the
assumption that parameters to functions and local variables of type AbstractCacheEntry
and TBE are always pointers, but instead of dereferencing to access member variables
on a contextual basis, the dereferencing automatically occurs on a type basis at the
moment a member is being accessed.  So, now, things you can do that you couldn't before
include:

Entry foo := getCacheEntry(address);
cache_entry.DataBlk := foo.DataBlk;

or

cache_entry.DataBlk := getCacheEntry(address).DataBlk;

or even

cache_entry.DataBlk := static_cast(Entry, pointer, cache.lookup(address)).DataBlk;
2011-03-31 17:18:00 -07:00
Lisa Hsu
322b9ca2c5 Ruby: Add new object called WireBuffer to mimic a Wire.
This is a substitute for MessageBuffers between controllers where you don't
want messages to actually go through the Network, because requests/responses can
always get reordered wrt to one another (even if you turn off Randomization and turn on Ordered)
because you are, after all, going through a network with contention. For systems where you model
multiple controllers that are very tightly coupled and do not actually go through a network,
it is a pain to have to write a coherence protocol to account for mixed up request/response orderings
despite the fact that it's completely unrealistic.  This is *not* meant as a substitute for real
MessageBuffers when messages do in fact go over a network.
2011-03-31 17:17:57 -07:00
Lisa Hsu
c9621cc69b Ruby: enable multiple sequencers in one controller. 2011-03-31 17:17:49 -07:00
Lisa Hsu
225e67f531 Ruby: pass Packet->Req->contextId() to Ruby.
It is useful for Ruby to understand from whence request packets came.
This has all request packets going into Ruby pass the contextId value, if
it exists.  This supplants the old libruby proc_id value passed around in
all the Messages, so I've also removed the unused unsigned proc_id; member
generated by SLICC for all Message types.
2011-03-31 17:17:47 -07:00
Lisa Hsu
f6a0b63d7b Ruby: Bug in SLICC forgot semicolon at end of code. 2011-03-31 12:20:16 -07:00
Somayeh Sardashti
c8bbfed937 This patch supports cache flushing in MOESI_hammer 2011-03-28 10:49:45 -05:00
Nilay Vaish
1764ebbf30 Ruby: Remove CacheMsg class from SLICC
The goal of the patch is to do away with the CacheMsg class currently in use
in coherence protocols. In place of CacheMsg, the RubyRequest class will used.
This class is already present in slicc_interface/RubyRequest.hh. In fact,
objects of class CacheMsg are generated by copying values from a RubyRequest
object.
2011-03-22 06:41:54 -05:00
Tushar Krishna
46cce440be This patch makes garnet use the info about active and inactive vnets during allocation and power estimations etc 2011-03-21 22:51:59 -04:00
Tushar Krishna
1b9002eefc fix garnet fleible pipeline 2011-03-21 22:51:59 -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
Nilay Vaish
d7aa794155 SLICC: Remove WakeUp* import calls from ast/__init__.py
I had recently committed a patch that removed the WakeUp*.py files from the
slicc/ast directory. I had forgotten to remove the import  calls for these
files from slicc/ast/__init__.py. This resulted in error while running
regressions on zizzer. This patch does the needful.
2011-03-20 09:23:27 -05:00
Nilay Vaish
611f052e96 Ruby: Convert CacheRequestType to RubyRequestType
This patch converts CacheRequestType to RubyRequestType so that both the
protocol dependent and independent code makes use of the same request type.
2011-03-19 18:34:59 -05:00
Nilay Vaish
2f4276448b Ruby: Convert AccessModeType to RubyAccessMode
This patch converts AccessModeType to RubyAccessMode so that both the
protocol dependent and independent code uses the same access mode.
2011-03-19 18:34:37 -05:00
Brad Beckmann
dd9083115e MOESI_hammer: minor fixes to full-bit dir 2011-03-19 14:17:48 -07:00
Brad Beckmann
541fa1091a Ruby: dma retry fix
This patch fixes the problem where Ruby would fail to call sendRetry on ports
after it nacked the port.  This patch is particularly helpful for bursty dma
requests which often include several packets.
2011-03-19 14:17:48 -07:00
Brad Beckmann
d1cecc2241 RubyPort: minor fixes to trace flag and dprintfs 2011-03-19 14:17:48 -07:00
Brad Beckmann
8e61805a21 ruby: added useful dma progress dprintf 2011-03-19 14:17:48 -07:00
Brad Beckmann
08d73529bc slicc: improved invalid transition message 2011-03-19 14:17:48 -07:00
Brad Beckmann
31d0a421a9 MOESI_hammer: fixed dma bug with shared data 2011-03-19 14:17:48 -07:00
Brad Beckmann
a2e98f191f MOESI_CMP_directory: significant dma bug fixes 2011-03-19 14:17:48 -07:00
Nilay Vaish
18142df5b9 SLICC: Remove external_type for structures
In SLICC, in order to define a type a data type for which it should not
generate any code, the keyword external_type is used. For those data types for
which code should be generated, the keyword structure is used. This patch
eliminates the use of keyword external_type for defining structures. structure
key word can now have an optional attribute external, which would be used for
figuring out whether or not to generate the code for this structure. Also, now
structures can have functions as well data members in them.
2011-03-18 14:12:04 -05:00
Nilay Vaish
3f27ccbb54 SLICC: Remove the keyword wake_up_dependents
In order to add stall and wait facility for protocols, a keyword
wake_up_dependents was introduced. This patch removes the keyword,
instead this functionality is now implemented as function call.
2011-03-18 14:12:03 -05:00
Nilay Vaish
847ba941ea SLICC: Remove the keyword wake_up_all_dependents
In order to add stall and wait facility for protocols, a keyword
wake_up_all_dependents was introduced. This patch removes the keyword,
instead this functionality is now implemented as function call.
2011-03-18 14:12:01 -05:00
Ali Saidi
6daf44dae6 Automated merge with ssh://hg@repo.m5sim.org/m5 2011-03-17 19:24:37 -05:00
Ali Saidi
a432d8e085 Mem: Fix issue with dirty block being lost when entire block transferred to non-cache.
This change fixes the problem for all the cases we actively use. If you want to try
more creative I/O device attachments (E.g. sharing an L2), this won't work. You
would need another level of caching between the I/O device and the cache
(which you actually need anyway with our current code to make sure writes
propagate). This is required so that you can mark the cache in between as
top level and it won't try to send ownership of a block to the I/O device.
Asserts have been added that should catch any issues.
2011-03-17 19:20:19 -05:00
Lisa Hsu
c4de6a0522 Ruby: minor bugfix, line did not adhere to some macro usage conventions. 2011-03-17 17:08:35 -07:00
Lisa Hsu
556b5c5488 Ruby: expose a simple mod function in slicc interface. 2011-03-17 17:01:41 -07:00
Gabe Black
b6ba1a528b Gems: Eliminate the now unused GEMS_ROOT scons variable. 2011-03-11 11:27:26 -08:00
Gabe Black
a78e772929 Ruby: Get rid of the dead ruby tester.
None of the code in the ruby tester directory is compiled or referred to
outside of that directory. This change eliminates it. If it's needed in the
future, it can be revived from the history. In the mean time, this removes
clutter and the only use of the GEMS_ROOT scons variable.
2011-03-11 11:27:16 -08:00
Gabe Black
96e0f3bda5 SCons: Clean up some inconsistent capitalization in scons options. 2011-03-03 23:55:21 -08:00
Gabe Black
579c5f0b65 Spelling: Fix the a spelling error by changing mmaped to mmapped.
There may not be a formally correct spelling for the past tense of mmap, but
mmapped is the spelling Google doesn't try to autocorrect. This makes sense
because it mirrors the past tense of map->mapped and not the past tense of
cape->caped.

--HG--
rename : src/arch/alpha/mmaped_ipr.hh => src/arch/alpha/mmapped_ipr.hh
rename : src/arch/arm/mmaped_ipr.hh => src/arch/arm/mmapped_ipr.hh
rename : src/arch/mips/mmaped_ipr.hh => src/arch/mips/mmapped_ipr.hh
rename : src/arch/power/mmaped_ipr.hh => src/arch/power/mmapped_ipr.hh
rename : src/arch/sparc/mmaped_ipr.hh => src/arch/sparc/mmapped_ipr.hh
rename : src/arch/x86/mmaped_ipr.hh => src/arch/x86/mmapped_ipr.hh
2011-03-01 23:18:47 -08:00
Nilay Vaish
3a10b200f7 Ruby: Fix DPRINTF bugs in PerfectSwitch and MessageBuffer
At a couple of places in PerfectSwitch.cc and MessageBuffer.cc, DPRINTF()
has not been provided with correct number of arguments. The patch fixes these
bugs.
2011-03-01 15:26:11 -06:00
Gabe Black
993e83ef80 Ruby: Mention that Ruby's bound checking option only applies to Ruby. 2011-03-01 02:59:09 -08:00
Nathan Binkert
586564895f getopt: Remove GPL code.
This code is unused and should never have been committed
2011-02-26 21:43:11 -08:00
Nilay Vaish
a4c038764d Ruby: Remove store buffer
This patch removes the store buffer from Ruby. It is not in use currently.
Since libruby is being and store buffer makes calls to libruby, it is not
possible to maintain it until substantial changes are made.
2011-02-25 17:55:20 -06:00
Nilay Vaish
e7edd270aa Ruby: Remove libruby
This patch removes libruby_internal.hh, libruby.hh and libruby.cc. It moves
the contents to libruby.hh to RubyRequest.hh and RubyRequest.cc files.
2011-02-25 17:54:56 -06:00
Nilay Vaish
6bf7153104 Ruby: Make Address.hh independent of RubySystem
This patch changes Address.hh so that it is not dependent on RubySystem.
This dependence seems unecessary. All those functions that depend on
RubySystem have been moved to Address.cc file.
2011-02-25 17:51:56 -06:00
Nilay Vaish
80b3886475 Ruby: Make DataBlock.hh independent of RubySystem
This patch changes DataBlock.hh so that it is not dependent on RubySystem.
This dependence seems unecessary. All those functions that depende on
RubySystem have been moved to DataBlock.cc file.
2011-02-25 17:51:02 -06:00
Brad Beckmann
12a05c23b7 ruby: automate permission setting
This patch integrates permissions with cache and memory states, and then
automates the setting of permissions within the generated code.  No longer
does one need to manually set the permissions within the setState funciton.
This patch will faciliate easier functional access support by always correctly
setting permissions for both cache and memory states.

--HG--
rename : src/mem/slicc/ast/EnumDeclAST.py => src/mem/slicc/ast/StateDeclAST.py
rename : src/mem/slicc/ast/TypeFieldEnumAST.py => src/mem/slicc/ast/TypeFieldStateAST.py
2011-02-23 16:41:59 -08:00
Brad Beckmann
7842e95519 MOESI_hammer: cache probe address clean up 2011-02-23 16:41:58 -08:00
Brad Beckmann
3bc33eeaea ruby: cleaned up access permission enum 2011-02-23 16:41:58 -08:00
Brad Beckmann
c09a33e5d5 ruby: removed unsupported protocol files 2011-02-23 16:41:26 -08:00
Ali Saidi
057598843a Mem: Print out memory when access > 8 bytes 2011-02-23 15:10:50 -06:00
Ali Saidi
f05f35df99 Includes: Don't include isa_traits.hh and use the TheISA namespace unless really needed. 2011-02-23 15:10:49 -06:00
Korey Sewell
78c37b8048 ruby: extend dprintfs for RubyGenerated TraceFlag
"executing" isnt a very descriptive debug message and in going through the
output you get multiple messages that say "executing" but nothing to help
you parse through the code/execution.

So instead, at least print out the name of the action that is taking
place in these functions.
2011-02-23 00:58:42 -05:00
Korey Sewell
67cc52a605 ruby: cleaning up RubyQueue and RubyNetwork dprintfs
Overall, continue to progress Ruby debug messages to more of the normal M5
debug message style
- add a name() to the Ruby Throttle & PerfectSwitch objects so that the debug output
isn't littered w/"global:" everywhere.
- clean up messages that print over multiple lines when possible
- clean up duplicate prints in the message buffer
2011-02-23 00:58:40 -05:00
Brad Beckmann
63a25a56cc m5: merged in hammer fix 2011-02-22 11:16:40 -08:00
Nilay Vaish
77eed184f5 Ruby: Machine Type missing in MOESI CMP directory protocol
In certain actions of the L1 cache controller, while creating an outgoing
message, the machine type was not being set. This results in a
segmentation fault when trace is collected. Joseph Pusudesris provided
his patch for fixing this issue.
2011-02-19 17:32:43 -06:00
Nilay Vaish
293ccb7037 Ruby: clean MOESI CMP directory protocol
The L1 cache controller file contains references to foo and goo queues, which
are not in use at all. These have been removed.
2011-02-19 17:32:00 -06:00
Nilay Vaish
343e94a257 Ruby: Improve Change PerfectSwitch's wakeup function
Currently the wakeup function for the PerfectSwitch contains three loops -

loop on number of virtual networks
  loop on number of incoming links
	    loop till all messages for this (link, network) have been routed

With an 8 processor mesh network and Hammer protocol, about 11-12% of the
was observed to have been spent in this function, which is the highest
amongst all the functions. It was found that the innermost loop is executed
about 45 times per invocation of the wakeup function, when each invocation
of the wakeup function processes just about one message.

The patch tries to do away with the redundant executions of the innermost
loop. Counters have been added for each virtual network that record the
number of messages that need to be routed for that virtual network. The
inner loops are only executed when the number of messages for that particular
virtual network > 0. This does away with almost 80% of the executions of the
innermost loop. The function now consumes about 5-6% of the total execution
time.
2011-02-14 16:14:54 -06:00
Nilay Vaish
0cede15d6c Ruby: Reorder Cache Lookup in Protocol Files
The patch changes the order in which L1 dcache and icache are looked up when
a request comes in. Earlier, if a request came in for instruction fetch, the
dcache was looked up before the icache, to correctly handle self-modifying
code. But, in the common case, dcache is going to report a miss and the
subsequent icache lookup is going to report a hit. Given the invariant -
caches under the same controller keep track of disjoint sets of cache blocks,
we can move the icache lookup before the dcache lookup. In case of a hit in
the icache, using our invariant, we know that the dcache would have reported
a miss. In  case of a miss in the icache, we know that icache would have
missed even if the dcache was looked up before looking up the icache.
Effectively, we are doing the same thing as before, though in the common case,
we expect reduction in the number of lookups. This was empirically confirmed
for MOESI hammer. The ratio lookups to access requests is now about 1.1 to 1.
2011-02-12 11:41:20 -06:00
Brad Beckmann
fbebe9a642 MOESI_hammer: fixed wakeup for SS->S transistion 2011-02-10 13:28:23 -08:00
Brad Beckmann
06dfee5cea ruby: removed duplicate make response call 2011-02-09 16:02:09 -08:00
Nilay Vaish
488280e48b MESI CMP: Unset TBE pointer in L2 cache controller
The TBE pointer in the MESI CMP implementation was not being set to NULL
when the TBE is deallocated. This resulted in segmentation fault on testing
the protocol when the ProtocolTrace was switched on.
2011-02-08 07:47:02 -06:00
Nilay Vaish
10b4b364d9 Orion: Replace printf() with fatal()
The code for Orion 2.0 makes use of printf() at several places where there as
an error in configuration of the model. These have been replaced with fatal().
2011-02-07 12:42:23 -06:00
Korey Sewell
1b4e788407 ruby: add stdio header in SRAM.hh
missing header file caused RUBY_FS to not compile
2011-02-07 12:19:46 -05:00
Brad Beckmann
f5aa75fdc5 ruby: support to stallAndWait the mandatory queue
By stalling and waiting the mandatory queue instead of recycling it, one can
ensure that no incoming messages are starved when the mandatory queue puts
signficant of pressure on the L1 cache controller (i.e. the ruby memtester).

--HG--
rename : src/mem/slicc/ast/WakeUpDependentsStatementAST.py => src/mem/slicc/ast/WakeUpAllDependentsStatementAST.py
2011-02-06 22:14:19 -08:00
Brad Beckmann
194a137498 ruby: minor fix to deadlock panic message 2011-02-06 22:14:19 -08:00
Joel Hestness
ebe563e531 garnet: Split network power in ruby.stats
Split out dynamic and static power numbers for printing to ruby.stats
2011-02-06 22:14:19 -08:00
Brad Beckmann
5c2f4937b3 MOESI_hammer: fixed dir bug counting received acks 2011-02-06 22:14:19 -08:00
Brad Beckmann
7edab47448 ruby: numa bit fix for sparse memory 2011-02-06 22:14:19 -08:00
Tushar Krishna
4fa690e8ff MOESI_CMP_token: removed unused message fields 2011-02-06 22:14:19 -08:00
Brad Beckmann
273e3d4924 mem: Added support for Null data packet
The packet now identifies whether static or dynamic data has been allocated and
is used by Ruby to determine whehter to copy the data pointer into the ruby
request.  Subsequently, Ruby can be told not to update phys memory when
receiving packets.
2011-02-06 22:14:19 -08:00
Brad Beckmann
2da54d1285 ruby: Fix RubyPort to properly handle retrys 2011-02-06 22:14:18 -08:00
Joel Hestness
dedb4fbf05 Ruby: Fix to return cache block size to CPU for split data transfers 2011-02-06 22:14:18 -08:00
Joel Hestness
82844618fd Ruby: Add support for locked memory accesses in X86_FS 2011-02-06 22:14:18 -08:00
Joel Hestness
16c1edebd0 Ruby: Update the Ruby request type names for LL/SC 2011-02-06 22:14:18 -08:00
Brad Beckmann
9782ca5def ruby: Assert for x86 misaligned access
This patch ensures only aligned access are passed to ruby and includes a fix
to the DPRINTF address print.
2011-02-06 22:14:18 -08:00
Brad Beckmann
1b54344aeb MOESI_hammer: Added full-bit directory support 2011-02-06 22:14:18 -08:00
Joel Hestness
02b05bf9be MOESI_hammer: trigge queue fix. 2011-02-06 22:14:17 -08:00
Tushar Krishna
a679e732ce garnet: added orion2.0 for network power calculation 2011-02-06 22:14:17 -08:00
Tushar Krishna
59163f824c garnet: separate data and ctrl VCs
Separate data VCs and ctrl VCs in garnet, as ctrl VCs have 1 buffer per VC,
while data VCs have > 1 buffers per VC. This is for correct power estimations.
2011-02-06 22:14:16 -08:00
Nilay Vaish
c82a8979a3 Change interface between coherence protocols and CacheMemory
The purpose of this patch is to change the way CacheMemory interfaces with
coherence protocols. Currently, whenever a cache controller (defined in the
protocol under consideration) needs to carry out any operation on a cache
block, it looks up the tag hash map and figures out whether or not the block
exists in the cache. In case it does exist, the operation is carried out
(which requires another lookup). As observed through profiling of different
protocols, multiple such lookups take place for a given cache block. It was
noted that the tag lookup takes anything from 10% to 20% of the simulation
time. In order to reduce this time, this patch is being posted.

I have to acknowledge that the many of the thoughts that went in to this
patch belong to Brad.

Changes to CacheMemory, TBETable and AbstractCacheEntry classes:
1. The lookup function belonging to CacheMemory class now returns a pointer
to a cache block entry, instead of a reference. The pointer is NULL in case
the block being looked up is not present in the cache. Similar change has
been carried out in the lookup function of the TBETable class.
2. Function for setting and getting access permission of a cache block have
been moved from CacheMemory class to AbstractCacheEntry class.
3. The allocate function in CacheMemory class now returns pointer to the
allocated cache entry.

Changes to SLICC:
1. Each action now has implicit variables - cache_entry and tbe. cache_entry,
if != NULL, must point to the cache entry for the address on which the action
is being carried out. Similarly, tbe should also point to the transaction
buffer entry of the address on which the action is being carried out.
2. If a cache entry or a transaction buffer entry is passed on as an
argument to a function, it is presumed that a pointer is being passed on.
3. The cache entry and the tbe pointers received __implicitly__ by the
actions, are passed __explicitly__ to the trigger function.
4. While performing an action, set/unset_cache_entry, set/unset_tbe are to
be used for setting / unsetting cache entry and tbe pointers respectively.
5. is_valid() and is_invalid() has been made available for testing whether
a given pointer 'is not NULL' and 'is NULL' respectively.
6. Local variables are now available, but they are assumed to be pointers
always.
7. It is now possible for an object of the derieved class to make calls to
a function defined in the interface.
8. An OOD token has been introduced in SLICC. It is same as the NULL token
used in C/C++. If you are wondering, OOD stands for Out Of Domain.
9. static_cast can now taken an optional parameter that asks for casting the
given variable to a pointer of the given type.
10. Functions can be annotated with 'return_by_pointer=yes' to return a
pointer.
11. StateMachine has two new variables, EntryType and TBEType. EntryType is
set to the type which inherits from 'AbstractCacheEntry'. There can only be
one such type in the machine. TBEType is set to the type for which 'TBE' is
used as the name.

All the protocols have been modified to conform with the new interface.
2011-01-17 18:46:16 -06:00
Nilay Vaish
47ba26f6b3 Ruby: Fixes MESI CMP directory protocol
The current implementation of MESI CMP directory protocol is broken.
This patch, from Arkaprava Basu, fixes the protocol.
2011-01-13 22:17:11 -06:00
Nathan Binkert
bd18ac8287 ruby: get rid of ruby's Debug.hh
Get rid of the Debug class
Get rid of ASSERT and use assert
Use DPRINTFR for ProtocolTrace
2011-01-10 11:11:20 -08:00
Steve Reinhardt
6f1187943c Replace curTick global variable with accessor functions.
This step makes it easy to replace the accessor functions
(which still access a global variable) with ones that access
per-thread curTick values.
2011-01-07 21:50:29 -08:00
Nilay Vaish
d36cc62c11 Ruby: Updates MOESI Hammer protocol
This patch changes the manner in which data is copied from L1 to L2 cache in
the implementation of the Hammer's cache coherence protocol. Earlier, data was
copied directly from one cache entry to another. This has been broken in to
two parts. First, the data is copied from the source cache entry to a
transaction buffer entry. Then, data is copied from the transaction buffer
entry to the destination cache entry.

This has been done to maintain the invariant - at any given instant, multiple
caches under a controller are exclusive with respect to each other.
2011-01-04 21:40:49 -06:00