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2020-02-25learning-gem5: timing readsimple-object-demoIru Cai
Change-Id: I566aa3e6e14c9d1784eaf93ede88c98a52a1fa71
2020-02-11learning-gem5: memory access example for simple objectIru Cai
Change-Id: I63a68239ac73b2bce3dea5692deac29a3467d27b
2019-10-11mem-ruby: Allow Ruby to use all replacement policies in ClassicJingQuJQ
Add support in Ruby to use all replacement policies in Classic. Furthermore, if new replacement policies are added to the Classic system, the Ruby system will recognize new policies without any other changes in Ruby system. The following list all the major changes: * Make Ruby cache entries (AbstractCacheEntry) inherit from Classic cache entries (ReplaceableEntry). By doing this, replacement policies can use cache entries from Ruby caches. AccessPermission and print function are moved from AbstractEntry to AbstractCacheEntry, so AbstractEntry is no longer needed. * DirectoryMemory and all SLICC files are changed to use AbstractCacheEntry as their cache entry interface. So do the python files in mem/slicc/ast which check the entry interface. * "main='false'" argument is added to the protocol files where the DirectoryEntry is defined. This change helps differentiate DirectoryEntry from CacheEntry because they are both the instances of AbstractCacheEntry now. * Use BaseReplacementPolicy in Ruby caches instead of AbstractReplacementPolicy so that Ruby caches will recognize the replacement policies from Classic. * Add getLastAccess() and useOccupancy() function to Classic system so that Ruby caches can use them. Move lastTouchTick to ReplacementData struct because it's needed by getLastAccess() to return the correct value. * Add a 2-dimensional array of ReplacementData in Ruby caches to store information for different replacement policies. Note that, unlike Classic caches, where policy information is stored in cache entries, the policy information needs to be stored in a new 2-dimensional array. This is due to Ruby caches deleting the cache entry every time the corresponding cache line get evicted. Change-Id: Idff6fdd2102a552c103e9d5f31f779aae052943f Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/20879 Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br> Reviewed-by: Matt Sinclair <mattdsinclair@gmail.com> Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Jason Lowe-Power <jason@lowepower.com> Tested-by: kokoro <noreply+kokoro@google.com>
2019-09-09dev: Scrub out some lingering uses of MemObject.Gabe Black
MemObject doesn't do anything any more, and is basically just an alias for ClockedObject. Change-Id: Ic0e1658609e4e1d7f4b829fbc421f222e4869dee Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/20719 Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Gabe Black <gabeblack@google.com> Tested-by: kokoro <noreply+kokoro@google.com>
2019-08-23mem: Move ruby protocols into a directory called ruby_protocol.Gabe Black
Now that the gem5 protocols are split out, it would be nice to put them in their own protocol directory. It's also confusing to have files called *_protocol which are not in the protocol directory. Change-Id: I7475ee111630050a2421816dfd290921baab9f71 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/20230 Reviewed-by: Gabe Black <gabeblack@google.com> Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Gabe Black <gabeblack@google.com> Tested-by: kokoro <noreply+kokoro@google.com>
2019-04-08learning_gem5: Fix vector port panic in SimpleCacheJason Lowe-Power
Change-Id: I0f3b71fdbed77690c533d9d14e774ab2cc08c053 Signed-off-by: Jason Lowe-Power <jason@lowepower.com> Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/17870 Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com>
2019-03-19arch, cpu, dev, gpu, mem, sim, python: start using getPort.Gabe Black
Replace the getMasterPort, getSlavePort, and getEthPort functions with getPort, and remove extraneous mechanisms that are no longer necessary. Change-Id: Iab7e3c02d2f3a0cf33e7e824e18c28646b5bc318 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/17040 Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br> Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
2019-02-12python: Don't assume SimObjects live in the global namespaceAndreas Sandberg
The importer in Python 3 doesn't like the way we import SimObjects from the global namespace. Convert the existing SimObject declarations to import from m5.objects. As a side-effect, this makes these files consistent with configuration files. Change-Id: I11153502b430822130722839e1fa767b82a027aa Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/15981 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
2018-06-11misc: Using smart pointers for memory RequestsGiacomo Travaglini
This patch is changing the underlying type for RequestPtr from Request* to shared_ptr<Request>. Having memory requests being managed by smart pointers will simplify the code; it will also prevent memory leakage and dangling pointers. Change-Id: I7749af38a11ac8eb4d53d8df1252951e0890fde3 Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-on: https://gem5-review.googlesource.com/10996 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-03-23learning_gem5: Add a simple Ruby protocolJason Lowe-Power
Adds the MSI protocol from "A Primer on Memory Consistency and Cache Coherence" by Daniel J. Sorin, Mark D. Hill, and David A. Wood. This code follows Learning gem5 Part 3. http://learning.gem5.org/book/part3/index.html This is meant to be a simple, clean, example of how to make a Ruby protocol. Currently, it only works in SE mode. The next changeset will contain the required configuration files. Change-Id: If2cc53f5e6b9c6891749f929d872671615a2b4ab Signed-off-by: Jason Lowe-Power <jason@lowepower.com> Reviewed-on: https://gem5-review.googlesource.com/8942
2017-12-05learning-gem5: Fix missing misc.hh in hello_object.ccHanhwi Jang
misc.hh has been renamed in commit 1088f0c4ac3999fc3c363cc51daef4cfb360a2bd Change-Id: Ic4f8c6423e6a5466f8d924e793a24f62bb4eca9c Reviewed-on: https://gem5-review.googlesource.com/6361 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Jason Lowe-Power <jason@lowepower.com>
2017-12-05learning_gem5: Adding code for SimpleCacheJason Lowe-Power
This is the rest of the code for part 2. See http://learning.gem5.org/book/part2/simplecache.html Change-Id: I5db099266a1196914656be3858fdd5fb4f8eab48 Signed-off-by: Jason Lowe-Power <jason@lowepower.com> Reviewed-on: https://gem5-review.googlesource.com/5023 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
2017-12-05learning_gem5: Adds the simple MemObject codeJason Lowe-Power
Adding more code from Learning gem5 Part II See http://learning.gem5.org/book/part2/memoryobject.html Change-Id: Iaa9480c5cdbe4090364f02e81dc1d0a0ddac392a Signed-off-by: Jason Lowe-Power <jason@lowepower.com> Reviewed-on: https://gem5-review.googlesource.com/5022 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
2017-12-05learning_gem5: Add code for hello-goodbye exampleJason Lowe-Power
Adding more code from Learning gem5 Part II See http://learning.gem5.org/book/part2/parameters.html Change-Id: I9fe5655239e011c718c5cf5fd62bebcda66ea966 Signed-off-by: Jason Lowe-Power <jason@lowepower.com> Reviewed-on: https://gem5-review.googlesource.com/5021 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
2017-12-05learning_gem5: Add code for simple SimObjectJason Lowe-Power
This adds code from Learning gem5 Part II. See http://learning.gem5.org/book/part2/helloobject.html Change-Id: Ic2caa07876ca57f937729c27ce29b2cd8bf2380c Signed-off-by: Jason Lowe-Power <jason@lowepower.com> Reviewed-on: https://gem5-review.googlesource.com/5020 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
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