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2019-02-26mem-cache: Copy over flags to forwarded responseNikos Nikoleris
A cache that forwards a request to the memory below does not fill and forwards the response with the data to cache above. This change ensures that the flags of the original response are also preserved. Change-Id: I244b20b073c31b976358816c5b14bba413b8271f Signed-off-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/16182 Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br>
2019-02-26configs: Fix Python 3 iterator and exec compatibility issuesAndreas Sandberg
Python 2.7 used to return lists for operations such as map and range, this has changed in Python 3. To make the configs Python 3 compliant, add explicit conversions from iterators to lists where needed, replace xrange with range, and fix changes to exec syntax. This change doesn't fix import paths since that might require us to restructure the configs slightly. Change-Id: Idcea8482b286779fc98b4e144ca8f54069c08024 Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/16002 Reviewed-by: Gabe Black <gabeblack@google.com>
2019-02-26scons: Marshal Python sources using the same Python as gem5Andreas Sandberg
We currently use the Python version used by scons to marshal Python code. This doesn't work when building gem5 with Python 3 support since scons typically runs in Python 2.7. Add a custom marshal helper that links with the same library as gem5 to generate byte code that is guaranteed to work in gem5's Python interpreter. Change-Id: I665b0f2078726d4c055d74a3e668a580fc613b59 Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/16422 Reviewed-by: Gabe Black <gabeblack@google.com>
2019-02-25systemc: Remove _m5.systemc passthroughs from SystemC_Kernel.Gabe Black
These functions are now exposed through m5.systemc and m5.tlm. Change-Id: I9f519debbe7380ee38594badcc1146e66e15f8a8 Reviewed-on: https://gem5-review.googlesource.com/c/16570 Maintainer: Gabe Black <gabeblack@google.com> Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
2019-02-25systemc: Update the systemc example to use m5.systemc for sc_main.Gabe Black
Change-Id: I431d3f2c18964bac1a3f19eacfffd49cd6e50fa2 Reviewed-on: https://gem5-review.googlesource.com/c/16569 Maintainer: Gabe Black <gabeblack@google.com> Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
2019-02-25systemc: Update the sc_main.py config to use m5.systemc.Gabe Black
Change-Id: I386970b5cf7ee1262b259abfb3b5e902ccea9991 Reviewed-on: https://gem5-review.googlesource.com/c/16568 Maintainer: Gabe Black <gabeblack@google.com> Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
2019-02-25systemc: Get rid of --working-dir in the test's config.py.Gabe Black
This option is no longer used and isn't needed. Change-Id: Iec1e2799b4f8c9ea258614323d55941b55828d27 Reviewed-on: https://gem5-review.googlesource.com/c/16565 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Maintainer: Gabe Black <gabeblack@google.com>
2019-02-25systemc: Start using the m5.systemc module in the test config.py.Gabe Black
Start using sc_main and sc_main_result from the systemc module, and stop using the versions of those functions which are attached to the SystemC_Kernel SimObject. Change-Id: I802898038c80ed36e6a9176211cffb7e0fde2d7e Reviewed-on: https://gem5-review.googlesource.com/c/16564 Maintainer: Gabe Black <gabeblack@google.com> Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
2019-02-25systemc: Add m5.systemc and m5.tlm python modules.Gabe Black
These will be how systemc and tlm APIs which are not attached to SimObjects will be exposed. This avoids having to artificially attach them to wrapping SimObjects for instance, which is a bit awkward and non-obvious. The python code which attaches the systemc and tlm modules to the m5 modules lives in src/python/m5/__init__.py, but the modules themselves live in src/systemc/python to keep all the systemc code grouped together. It might be a little confusing to have a small part of the glue that adds those modules in a separate place (__init__.py), but that is, as far as I can tell, unavoidable, and it's better in my opinion to keep the systemc code grouped together than to put it alongside the other python code and __init__.py. Change-Id: Iecb218daec5e15772152b5ad22b51f43b86c3d4b Reviewed-on: https://gem5-review.googlesource.com/c/16563 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Maintainer: Gabe Black <gabeblack@google.com>
2019-02-25systemc: Export the tlm::tlm_global_quantum class to python.Gabe Black
This way the python code can set up the global quantum without having an sc_main function to do it. Change-Id: I96df4dea0f1bfe9e3e86d4784bbda8f5b6b74d0b Reviewed-on: https://gem5-review.googlesource.com/c/16503 Maintainer: Gabe Black <gabeblack@google.com> Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
2019-02-25systemc: Export the sc_core::sc_time class to python.Gabe Black
This class isn't incredibly useful in python, but it's needed to call some other functions which are more useful. Change-Id: I5c23cca0b50f0455423399db8b009bdf86a6ec41 Reviewed-on: https://gem5-review.googlesource.com/c/16502 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Maintainer: Gabe Black <gabeblack@google.com>
2019-02-25mem-cache: added missing override specifier in BoPAndrea Mondelli
Added missing specifier for various virtual functions. Change-Id: I41aebb3b76bce6dd3bee21ac0e2b0e52cb90fc80 Reviewed-on: https://gem5-review.googlesource.com/c/16728 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2019-02-25python: Stop using basestring to test for stringsAndreas Sandberg
The base class basestring doesn't exist in Python 3. Use string_types from six instead. Change-Id: I7e84903fb7dd4a0af7ae4e9f4ec2e54338f212bb Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/15998 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Reviewed-by: Juha Jäykkä <juha.jaykka@arm.com>
2019-02-25python: Add Python 3 workarounds for longAndreas Sandberg
Python 3 doesn't have a separate long type. Make long an alias for int where needed to maintain compatibility. Change-Id: I4c0861302bc3a2fa5226b3041803ef975d29b2fd Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/15988 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
2019-02-25tests: Update test scripts to work with Python 3Andreas Sandberg
Change-Id: I71b1e595765fed9e9f234c9722c33ac5348d4f11 Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/15999 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
2019-02-25mem-cache: A Best-Offset PrefetcherIvan Pizarro
Michaud, P. (2015, June). A best-offset prefetcher. In 2nd Data Prefetching Championship. Change-Id: I61bb89ca5639356d54aeb04e856d5bf6e8805c22 Reviewed-on: https://gem5-review.googlesource.com/c/14820 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2019-02-25python: Fix params/proxy import loopAndreas Sandberg
There is a circular dependency between params and proxy at import time. This causes issues for Python 3. Add the imports to the specific methods with the dependencies to make the import happen when the method is executed instead. Change-Id: I770112fd3c07c395459e204976942bda3dc7236f Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/15993 Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Reviewed-by: Juha Jäykkä <juha.jaykka@arm.com>
2019-02-23scons: Add support for specifying Python versionAndreas Sandberg
Add a sticky variable (PYTHON_CONFIG) to select which python-config version to use. This can, for example, be used to build with Python 3 or with Python 2.7 in a custom location. Change-Id: I1f4c00d66f85a9c99f50fe4d746b69dd82b60b4b Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/16003 Reviewed-by: Gabe Black <gabeblack@google.com>
2019-02-23python: Enforce absolute imports for Python 3 compatibilityAndreas Sandberg
Change-Id: Ia88d7fd472f7aed9b97df81468211384981bf6c6 Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/15983 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2019-02-23scons: conditional use of new RPATH inclusionAndrea Mondelli
On OSX, clang doesn’t support the -z option. This patch resolve the compiler error produced on MacOS platform. Change-Id: Idfe69c30fe40add97d16d0f2e25e598b30d26a9d Reviewed-on: https://gem5-review.googlesource.com/c/16649 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2019-02-22python: Add fallbacks for packages that have been renamedAndreas Sandberg
Python 3 has restructured some packages. Specifically, __builtin__ has been renamed to builtins and urlparse has been included in urllib. Change-Id: I81f8f3942471db1043006a36abbad6e5a49e0a43 Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/15994 Reviewed-by: Juha Jäykkä <juha.jaykka@arm.com>
2019-02-22python: Fix param -> int conversion issuesAndreas Sandberg
Python 3 doesn't convert params to integers automatically in range(). Add __index__ to CheckedInt to enable implicit conversions again. Add explicit conversions where necessary. Change-Id: I2de6c9906d3bb7616f12ada6728b9e4b1928511c Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/16000 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Jason Lowe-Power <jason@lowepower.com>
2019-02-22cpu-o3: Add cache read ports limit to LSQGabor Dozsa
This change introduces cache read ports to limit the number of per-cycle loads. Previously only the number of per-cycle stores could be limited. Change-Id: I39bbd984056c5a696725ee2db462a55b2079e2d4 Signed-off-by: Gabor Dozsa <gabor.dozsa@arm.com> Reviewed-by: Giacomo Gabrielli <giacomo.gabrielli@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/13517 Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br> Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
2019-02-22python: Make iterator handling Python 3 compatibleAndreas Sandberg
Many functions that used to return lists (e.g., dict.items()) now return iterators and their iterator counterparts (e.g., dict.iteritems()) have been removed. Switch calls to the Python 2.7 iterator methods to use the Python 3 equivalent and add explicit list conversions where necessary. Change-Id: I0c18114955af8f4932d81fb689a0adb939dafaba Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/15992 Reviewed-by: Juha Jäykkä <juha.jaykka@arm.com> Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
2019-02-22python: Add missing operators to NumericParamValueAndreas Sandberg
Add missing operators to NumericParamValue and ensure that they are able to work on the underlying value if the right hand side is a param. Change-Id: I2bd86662aee9891bbd89aed7ebe20b827b5528bd Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/16001 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
2019-02-22mem-cache: Add a mechanism to iterate all entries of an AssociativeSetJavier Bueno
Added functions to obtain an iterator to access all entries of an AssociativeSet container. Change-Id: I1ec555bd97d97e3edaced2b8f61287e922279c26 Reviewed-on: https://gem5-review.googlesource.com/c/16582 Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br> Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2019-02-21scons: Add a convenience method to set RPATH for local libraries.Gabe Black
When linking in a dynamic library which is in the gem5 build directory, it's useful to set RPATH so that you don't have to set LD_LIBRARY_PATH when you run gem5 so that the dynamic linker can find it. Since it's tricky and not entirely obvious how to set up those paths correctly, this change adds a small convenience function which does that for you. It also handles situations where the same dynamic library may be linked into different binaries in different directories which each need a different relative RPATH. It does that by letting the environment for each binary set a construction variable which says how to get from that particular binary back to the build directory. This helper method then sets RPATH to start at $ORIGIN (the binary), to follow that relative path to the variant build directory, and then the per-library but not per-binary path to the library's directory. This change also adds the -z origin linker flag which makes the linker handle $ORIGIN properly. Change-Id: I45f4d72cd14396a73e0b963cea6a39d9bfb7f984 Reviewed-on: https://gem5-review.googlesource.com/c/16566 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Maintainer: Gabe Black <gabeblack@google.com>
2019-02-21systemc: Make the verify.py script work when run from different dirs.Gabe Black
The verify.py script ran scons from the CWD, and that would fail if there wasn't a SConstruct in that directory, ie if it wasn't from the source of the checkout. This change makes verify.py use scons' --directory option to run from where the SConstruct is, or at least the SConstruct which was checked out alongside that copy of verify.py. That location can be overridden using the new -C or --scons-dir options. Change-Id: I9f033d6dd30e0c2992b7f3102c573b34ea9c49e0 Reviewed-on: https://gem5-review.googlesource.com/c/16562 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Maintainer: Gabe Black <gabeblack@google.com>
2019-02-21ext: test: Split up the GTEST_CPPFLAGS and CPPFLAGS.Gabe Black
scons seems to get confused in some situations when this is a single large string and passes it as one big argument to g++ instead of breaking it up into several arguments. We need to do the work for it and break it into individual arguments, like what was already being done with GTEST_LIBS. Also wrap some overly long lines. Change-Id: Ib7688a7abced43a9c62994d17b78d358fc0dc000 Reviewed-on: https://gem5-review.googlesource.com/c/16567 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Maintainer: Gabe Black <gabeblack@google.com>
2019-02-21systemc: Make sc_(pause|stop) exit to python when not using sc_main.Gabe Black
In those cases, there's no sc_main to return control to. The python config script is serving more or less the same purpose, so we can return control to there instead. Change-Id: I3cf0623ae51d989b883fb8556ebbf44651bbec99 Reviewed-on: https://gem5-review.googlesource.com/c/16445 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Maintainer: Gabe Black <gabeblack@google.com>
2019-02-21systemc: Init some values in the scheduler for running without sc_main.Gabe Black
When running without sc_main, sc_start won't be called, and therefore runToTime and maxTick won't be initialized. To avoid the scheduler getting confused and behaving erratically, those values should be initialized to something that makes sense in situations where there's no sc_main. Change-Id: I6ddd7db9ecb36d716eb5ef75e1c38bb99a386092 Reviewed-on: https://gem5-review.googlesource.com/c/16443 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Maintainer: Gabe Black <gabeblack@google.com>
2019-02-21systemc: Handle exceptions "correctly" even if sc_main hasn't been run.Gabe Black
If sc_main hasn't run, for instance if there isn't an sc_main and gem5 is orchestrating the simulation directly, then exceptions shouldn't be thrown to the sc_main fiber since it isn't running and may not be able to run since sc_main may not even exist. Instead, we need to check whether it makes sense to throw to sc_main, and if not pass the exception directly to the report handler since there likely won't be anyone to catch it if we just throw it from the scheduler or into general purpose gem5. Since the name throwToScMain is no longer a complete description for what that function does, this change renames it to throwUp, since it will now throw exceptions up the stack, either to sc_main or to the conceptual top level by going directly to the report handler. Change-Id: Ibdc92c9cf213ec6aa15ad654862057b7bf2e1c8e Reviewed-on: https://gem5-review.googlesource.com/c/16442 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Maintainer: Gabe Black <gabeblack@google.com>
2019-02-21mem-cache: Added the Slim AMPM PrefetcherJavier Bueno
Reference: Towards Bandwidth-Efficient Prefetching with Slim AMPM. Young, V., & Krishna, A. (2015). The 2nd Data Prefetching Championship. Slim AMPM is composed of two prefetchers, the DPCT and the AMPM (both already in gem5). Change-Id: I6e868faf216e3e75231cf181d59884ed6f0d382a Reviewed-on: https://gem5-review.googlesource.com/c/16383 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2019-02-20python: Fix Param initialization issue in Python 3Andreas Sandberg
When initializing a param with a SimObject NULL pointer, convert() checks if the 'ptype' attribute has been created and whether the value is NULL. In that case, it assumes that the object is being initizalized as a part of SimObject initialization and defers the conversion. This check is implemented using hasattr() which in turn is implemented using the __getattr__ implementation that asserts because all SimObjects haven't been initialized yet. Implement the check using a lookup in the object's dictionary instead to prevent the SimObject lookup. Change-Id: I7367563c4fb71f6d2be541ebdc0be418e9f73d48 Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/15990 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
2019-02-20python: Use __name__ instead of func_name for Py3 compatAndreas Sandberg
Change-Id: I62a9685b4bce7e9012bc65309fcafe26135fde6d Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/15997 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
2019-02-20python: Add __bool__ helpers in addition to __nonzero__Andreas Sandberg
Python 3 uses __bool__ instead of __nonzero__ when performing a Boolean comparison. Change-Id: I85185bbe136ecae67346fa23569e24edd7329222 Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/15996 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
2019-02-20config: Make parameter conversion handle integers in other bases.Gabe Black
Python's float() function/type can't handle hexadecimal notation, but int() can. Since there are also cases where converting to a float and then back to an int (or long) can cause rounding error, this change splits toFloat and toInteger apart and makes them call a worker function which accepts a conversion function which does the work of converting a numeric string into an actual number. in the case of toFloat, it still uses the standard float(), and in the case of toInteger it uses a lambda which wraps int(x, 0). Change-Id: Ic46cf4ae86b7eba6f55d731d1b25e3f84b8bb64c Reviewed-on: https://gem5-review.googlesource.com/c/16504 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
2019-02-20x86: Call the base class's regStats in X86ISA::TLBBagus Hanindhito
When I try to build x86 architecture and run the se.py sample script with helloworld example, there is a panic warning stated "Not all stats have been initialized. You may need to add <ParentClass>::regStats() to a new SimObject's regStats() function." I see that in x86 tlb.cc, there is no initialization in regStats() function that causes memory allocation error in some machine which make gem5 exit abnormally. I add the BaseTLB::regStats(); on TLB::regStats() method and can solve the problem Change-Id: I8b62bebc15f896c3136ff4f8253dabbf998f618f Reviewed-on: https://gem5-review.googlesource.com/c/16522 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2019-02-19sim: Add a mechanism to exit the simulation loop immediately.Gabe Black
There are some cases, specifically when running systemc, that it's necessary to exit the simulation loop immediately rather than finishing running events scheduled for the current Tick. When running under sc_main, sc_stop and sc_pause return control to sc_main which can happen immediately. When running without sc_main, control needs to return to the python config script which needs to happen through a global exit event. Since sc_pause and sc_stop are supposed to stop simulation without necessarily letting all the events at the current time run, we need a way to schedule an exit event with a very high priority (rather than a very low priority). This change adds a new exitSimLoopNow function which does that, and adds a new constructor to the GlobalSimLoopExitEvent which uses that priority. Also, a couple of cruft functions from the sim events are removed. Change-Id: Icfbec17fb10f98084a75740acd839dbf4096fbb3 Reviewed-on: https://gem5-review.googlesource.com/c/16444 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
2019-02-19cpu: Add ISA* getter in Thread interfaceGiacomo Gabrielli
This patch is adding a ISA* getter to the TC interface Change-Id: Ib8ddc5d8fdd44e782f50a2ad15878a6bcf931e58 Reviewed-on: https://gem5-review.googlesource.com/c/16462 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com> Maintainer: Anthony Gutierrez <anthony.gutierrez@amd.com>
2019-02-18arch-generic: Making base TLB class a MemObjectIvan Pizarro
Allow configuring a TLB hierarchy using ports Change-Id: I1f791829d4e072a9104e67eacf69a69de9543634 Reviewed-on: https://gem5-review.googlesource.com/c/14117 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com> Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
2019-02-18arch-arm: Move GICv3 detection at startup timeGiacomo Travaglini
At the moment the haveGicV3 parameter is used only to signal its presence when reading the MISCREG_ID_AA64PFR0_EL1 register. It depends on the system->getGIC pointing to a GICv3 model. However this pointer is set in the System only at init time (after construction), which means that the haveGICv3CPUInterface will always be false. This patch is fixing this by moving the parameter initialization at startup time, together with the cpu interface registration. Change-Id: I8da6711ea741ecd0f78ec8ca60a8c3ae3bca2421 Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Reviewed-by: Anouk Van Laer <anouk.vanlaer@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/16483 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
2019-02-18dev-arm: LPI support for GICv3. This doesn't include an ITS model.Jairo Balart
Change-Id: Ia2c02cca4f95672d6361fba16201a56e2047ddb7 Reviewed-on: https://gem5-review.googlesource.com/c/16142 Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
2019-02-18base: Fix enums checkpointingGiacomo Travaglini
Creating an extra version of string to number converters (__to_number) in base/str.hh; it will be used by enums only when unserializing them. The reason not to have a single helper for both enums and integers is that std::numeric_limits trait is not specialized for enums. We fix this by using the std::underlying_type trait. Change-Id: I819e35c0df8c094de7b7a6390152964fa47d513d Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Reviewed-by: Ciro Santilli <ciro.santilli@arm.com> Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/16382 Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br> Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Maintainer: Jason Lowe-Power <jason@lowepower.com>
2019-02-15cpu: Fix fast build broken due to unused variableGiacomo Travaglini
This fixes fast build for commit 25dc765889d948693995cfa622f001aa94b5364b (fast build is striping out assertions) Change-Id: I9536ad58a3d85990b16a1f8c2515f6bf5d3acf71 Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/16463 Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br> Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Jason Lowe-Power <jason@lowepower.com>
2019-02-14systemc: Add a systemc_home directory which maps to the ext headers.Gabe Black
Some systemc code bases expect to find a SYSTEMC_HOME environment variable which points to the installed header files provided by systemc, all under ${SYSTEMC_HOME}/include. The systemc headers in gem5 are not supposed to be installed anywhere, but to satisfy those expectations this change creates a dummy systemc_home directory with an include/ in it which has headers which just include the actual headers in src/systemc/ext. More gem5 aware code bases can still access the headers either by letting gem5's scons environment -I the ext directory, or can do so themselves if they're not being built by gem5's scons. Change-Id: I5f2e6bfcf20dd314d525207c2e13ca53474a33f3 Reviewed-on: https://gem5-review.googlesource.com/c/16263 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2019-02-14systemc: Make an include in src/systemc/ext use a relative path.Gabe Black
The includes in src/systemc/ext are supposed to use relative paths so that they can be included in other bodies of code which aren't based in gem5 and don't share it's -I-s, or potentially even have access to anything outside of src/systemc/ext. Change-Id: Icde457329c2c4ab4689221015bfcfe2ff8b051f0 Reviewed-on: https://gem5-review.googlesource.com/c/16262 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2019-02-13cpu: Added 8KB and 64KB TAGE-SC-L branch predictorJavier Bueno
The original paper of the branch predictor can be found here: http://www.jilp.org/cbp2016/paper/AndreSeznecLimited.pdf Change-Id: I684863752407685adaacedebb699205c3559c528 Reviewed-on: https://gem5-review.googlesource.com/c/14855 Reviewed-by: Sudhanshu Jha <sudhanshu.jha@arm.com> Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
2019-02-13configs: simpoint-profile usable with NonCachingCPUs onlyGiacomo Travaglini
NonCachingCPU is replacing the Atomic+fastmem option. Change-Id: I66f5c8a880d1b3fd1331871d89e8d6a229938e57 Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/15935 Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br> Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
2019-02-13python: Remove uses of tuple unpacking in function paramsAndreas Sandberg
Python 3 doesn't support tuple unpacking in function parameters and lambdas. Change-Id: I36c72962e33a9ad37145089687834becccc76adb Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/15991 Reviewed-by: Gabe Black <gabeblack@google.com>
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