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2018-09-05systemc: Implement the sensitivity mechanism.Gabe Black
This change lets processes be sensitive to events, timeouts, etc. Change-Id: If30a256dfa8a2e92192c1f9c96b48e2aa28ec27e Reviewed-on: https://gem5-review.googlesource.com/11713 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-09-05systemc: Implement much of events, event lists and event exprs.Gabe Black
Three things aren't yet implemented, waking up processes which are sensitive to the event, triggering of events, and garbage collecting list objects which came from expression objects. The garbage collection aspect is problematic since there doesn't seem to be a correct way to implement it given the constraints in the spec, including the way that's implemented by Accellera. It's something that will need to be dealt with at some point, but in the interest of forward progress it's being ignored for now. Change-Id: Ic4e3c219ff482729f1f1302ab10181a798d48041 Reviewed-on: https://gem5-review.googlesource.com/11711 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-09-05systemc: Implement channel updates and rework the scheduler.Gabe Black
This change implements channel updates, and also reworks the scheduler to delegate more to the gem5 event queue by taking advantage of event priorities to ensure things happen in the right order. There's a lengthy comment in scheduler.hh describes how that all works. Change-Id: I5dee71b86b2e612bb720a4429f3a72e4b7c6d01f Reviewed-on: https://gem5-review.googlesource.com/11710 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-09-05systemc: Fill out sc_process_handle and create Process classes.Gabe Black
The sc_process_handle class now primarily delegates to a Process object it points at. The Process object does book keeping as far as its internal state, but doesn't yet have a way to run its target function or to schedule itself or inject exceptions into its context of execution. Change-Id: I98389778abe29aa26e3e3a91bf02e6721acc8a9c Reviewed-on: https://gem5-review.googlesource.com/11613 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-09-05systemc: Implement some basic plumbing in sc_module.hh.Gabe Black
Take care of some low hanging fruit as far as wrapper methods and the sc_bind_proxy class. Change-Id: I7f55a37eeaa82338bd608218c0261fbc39e65fc2 Reviewed-on: https://gem5-review.googlesource.com/11612 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-09-05systemc: Implement most of sc_object.Gabe Black
To avoid making it hard to change sc_object's implementation in the future, this change keeps most of the data members out of sc_object and keeps them in a seperate Object which is managed independently but still matches to the sc_objects one to one. This change also moves away from the SystemC/sc_gem5 namespace pair in favor of sc_gem5. Having two namespaces with classes, etc, living in both was complicating things. Having to use a namespace that doesn't fit in one scheme or the other isn't great, but it's the lesser of two evils. Change-Id: Ib59c3c515ca98c7fe519c59e9fe9270304b71cc0 Reviewed-on: https://gem5-review.googlesource.com/11611 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-09-05systemc: Implement the sc_attr classes.Gabe Black
Change-Id: Ibbe6da957b1b36687178f226e80718adc0f4ab81 Reviewed-on: https://gem5-review.googlesource.com/11609 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-09-05systemc: Enable some more sc_simcontext related tests.Gabe Black
Now that we bit the bullet and stubbed out sc_simcontext and related functions a little bit, we can enable a couple more tests. This change also adds in some functions the new tests expect sc_simcontext to have. Change-Id: I00b5cc0c6eb658eb689b9c85ed171f290009768d Reviewed-on: https://gem5-review.googlesource.com/11356 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-09-05systemc: Add m_cur_val and m_new_val to sc_signal.Gabe Black
These members are referred to in one of the tests. Change-Id: Iab0110a0e3acf627986664069622704f17b703a1 Reviewed-on: https://gem5-review.googlesource.com/11355 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-09-05systemc: Add the "implementation defined" vport function.Gabe Black
This function is in an "implementation defined" class body in the spec, and has a comment next to it which says "(for internal use only)" next to it, but it is still used directly in one of the tests. Change-Id: Ib3727c93cc531ddd31a24897291dc7e7c97c2b58 Reviewed-on: https://gem5-review.googlesource.com/11354 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-09-05systemc: Add the nonstandard sc_join class and sc_thread_handle type.Gabe Black
Change-Id: I09905bad4797d9c456229afe601006ce16977394 Reviewed-on: https://gem5-review.googlesource.com/11353 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-08-28systemc: Minimally implemented the deprecated sc_simcontext.Gabe Black
This is supposed to be deprecated, but is still used in a small way by the tests. Change-Id: I94fc32f9e0f03d50c00ce5421926203859064020 Reviewed-on: https://gem5-review.googlesource.com/11352 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-08-28systemc: Add a minimal version of the deprecated sc_process_b.Gabe Black
This type is deprecated, but some tests still rely on it. This change adds just enough of it to satisfy the tests, and also the several different mechanisms for retrieving the sc_process_b which refers to the currently active process. Change-Id: Id122ae5df23744b5de1e1c97573412f97a73b77a Reviewed-on: https://gem5-review.googlesource.com/11351 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-08-28systemc: Add bind() to sc_port_base.Gabe Black
sc_port_base is supposed to be implementation defined, but internal details of it are relied on by the systemc tests. Change-Id: I53d84e708a5543a2cf4bd0deffc2efea1c008d97 Reviewed-on: https://gem5-review.googlesource.com/11350 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-08-28systemc: Add the nonstandard sc_user exception type.Gabe Black
This type is not in the spec but is used in the tests. Change-Id: I4537a33b0b5dcb3c72a091276d601c244c4a3862 Reviewed-on: https://gem5-review.googlesource.com/11284 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-08-28systemc: Add the nonstandard sc_trace_params and sc_trace_params_vec.Gabe Black
These two types are supposedly only for internal use in the Accellera implementation based on a big warning in all caps, but they still appear in the tests and examples in that version of systemc. Change-Id: Icfb3ffdf1e78988def5dac145172bf28f93d7d38 Reviewed-on: https://gem5-review.googlesource.com/11283 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-08-28systemc: Make some functions static in conflict with the spec.Gabe Black
The spec is likely wrong in this case since a lot of the other neighboring functions are static, and the Accellera implementation and the tests seem to assume they're static. Change-Id: Ia12a3735497b50f8a2419a52c83ef256416e7bc5 Reviewed-on: https://gem5-review.googlesource.com/11282 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-08-28systemc: Add the nonstandard time_stamp function.Gabe Black
Change-Id: I608c390b125611e5b62483c7e8567bb5479df553 Reviewed-on: https://gem5-review.googlesource.com/11281 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-08-28systemc: Add the nonstandard sc_hierarchical_name_exists function.Gabe Black
Change-Id: I1340bb6cb0ae29d81b5d73b3dd39ebb11c14802c Reviewed-on: https://gem5-review.googlesource.com/11280 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-08-28systemc: Add the nonstandard timed_out function.Gabe Black
Change-Id: If14a5f98f03448c712827b7f92d2a36992541518 Reviewed-on: https://gem5-review.googlesource.com/11279 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-08-28systemc: Add some deprecated sc_module constructors.Gabe Black
Change-Id: Ibe2bfe63536af33fca6040f4aef999ee928d876b Reviewed-on: https://gem5-review.googlesource.com/11278 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-08-28systemc: Add the non-standard sc_time_tuple class.Gabe Black
Change-Id: Ia3d6a6a4ea3383c82605653faac570ced7bebb70 Reviewed-on: https://gem5-review.googlesource.com/11277 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-08-28systemc: Add non-standard sc_status constants.Gabe Black
Change-Id: I02f52df318473906062035b188348fb875daad08 Reviewed-on: https://gem5-review.googlesource.com/11276 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-08-28systemc: Add deprecated sc_time constructors.Gabe Black
Change-Id: Iffae751272302ff2996258a1ab31b086e12bbb8d Reviewed-on: https://gem5-review.googlesource.com/11275 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-08-28systemc: Add an sc_event_finder::find_event method.Gabe Black
The guts of sc_event_finder are supposed to be implementation defined, but the tests reach in and call this particular method on that class. Change-Id: I21c18fa68ccce7bc1a13122ee3b452ecb81b713a Reviewed-on: https://gem5-review.googlesource.com/11274 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-08-28systemc: Add some deprecated sc_time factory methods.Gabe Black
Change-Id: I0d9a7040a48b9f0d0079e9daecaf44ea78c186de Reviewed-on: https://gem5-review.googlesource.com/11273 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-08-28systemc: Add some nonstandard, undocumented sc_report_* functions.Gabe Black
The tests use these functions. Change-Id: I3cdc10d433d9388742a20fb3a97a1a3efa699e11 Reviewed-on: https://gem5-review.googlesource.com/11271 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-08-22systemc: Add deprecated default time unit management functions.Gabe Black
Having default time units is deprecated, and so are the functions that manage them. Change-Id: Ie21f9a5fca9868dd4f0adcd9f32c568fbec1fa72 Reviewed-on: https://gem5-review.googlesource.com/11270 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-08-22systemc: Add deprecated notify_delayed functions.Gabe Black
Change-Id: I8ec68920b35f9207b6856a0b1ddfdf7545b7148a Reviewed-on: https://gem5-review.googlesource.com/11269 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-08-22systemc: Add some nonstandard cthread related sc_module functions.Gabe Black
Change-Id: I73f9868b80f9b75e7bd90df6e894daea60a203a1 Reviewed-on: https://gem5-review.googlesource.com/11268 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-08-22systemc: Add the deprecated sc_trace_delta_cycles function.Gabe Black
This function enables or disables tracing of delta cycles in a particular trace file. Change-Id: I53164a792856d071de1fefc76977cca8eb5fd735 Reviewed-on: https://gem5-review.googlesource.com/11267 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-08-22systemc: Add a nonstandard sc_signal constructor.Gabe Black
This constructor takes an initial value to set the sc_signal to, and is used in the tests. Change-Id: I197218846d9a79f9237238c78b1bbd8a7f55443f Reviewed-on: https://gem5-review.googlesource.com/11266 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-08-22systemc: Add some nonstandard (get|set)_catch_actions functions.Gabe Black
These are used by the tests. Change-Id: I09bbe81854f0faa524a4c6aa0ef31d80e4a8de24 Reviewed-on: https://gem5-review.googlesource.com/11265 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-08-22systemc: Add the nonstandard, undocumented halt function.Gabe Black
Used in the tests. Change-Id: I9b4f10600a50e0def1b5d55428cb4ad49e401295 Reviewed-on: https://gem5-review.googlesource.com/11263 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-08-22systemc: Define the nonstandard sc_event_queue_port typedef.Gabe Black
Used in the tests. Change-Id: Ic4b4a313b2bd02e5cb3ec07c4f7ee79219728881 Reviewed-on: https://gem5-review.googlesource.com/11262 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-08-22systemc: Add some nonstandard SC_WAIT* macros.Gabe Black
These are not in the standard, but are defined by Accellera and used in the tests. Change-Id: I4cbddac4eb75c58d8ae3eb77d1f291dac3c51cd6 Reviewed-on: https://gem5-review.googlesource.com/11261 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-08-22systemc: Add nonstandard sc_trace-s for sc_event and sc_time.Gabe Black
These are not in the standard but are defined by Accellera and are used in the regression tests. Change-Id: Idb8358530b1135526c52733e628461a17308e216 Reviewed-on: https://gem5-review.googlesource.com/11259 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-08-22systemc: Add support for deprecated integer report handler ids.Gabe Black
These are deprecated but still used in the regression tests. Change-Id: Id59cf950fbe0530a6cdce20a256d450b243f12d3 Reviewed-on: https://gem5-review.googlesource.com/11256 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-08-22systemc: Add the nonstandard macro SC_NEW.Gabe Black
This is in the Accellera implementation and in the regression tests. The implementation here is a bit different than theirs in that it uses std::unique_ptrs. Change-Id: Id3d1ad82482b94a5d99f27e02d1e447ca1944797 Reviewed-on: https://gem5-review.googlesource.com/11255 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-08-22systemc: Add the nonstandard triggered function sc_event.Gabe Black
The Accellera implementation of sc_event has a non-standard triggered function which returns whether or not that particular event has been triggered in the current delta cycle. The tests call it, so we probably need to have it. Change-Id: I675099b65d00e09536618d4d2d707bf3c25e3bde Reviewed-on: https://gem5-review.googlesource.com/11187 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-08-22systemc: Add the nonstandard variable sc_allow_process_control_corners.Gabe Black
This variable controls what happens in some situations which are left as undefined in the spec. It's behavior is explained in a big comment in the Accellera implementation. Since it's used in the regression tests, we need to at least have that variable so they'll compile and link properly. Change-Id: I1ac4592641be3d9dd10e7bf6144704a6fac1b2d4 Reviewed-on: https://gem5-review.googlesource.com/11186 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-08-22systemc: Add some "implementation defined" stuff to sc_attr_cltn.Gabe Black
These "impelementation defined" methods are tested by the regression tests, so we need to have them. We might as well have the same general interface as the Accellera implementation since nothing there seems overly specialized for that environment. Change-Id: Ief6567fcd9d99d3a0f526cfa3b65043b2c828efa Reviewed-on: https://gem5-review.googlesource.com/11185 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-08-15systemc: Partially implement SC_FORK and SC_JOIN.Gabe Black
These macros need to expand to some minimal amount of wrapping code to make the regression tests syntactically legal and compile. Change-Id: I0b5569704b129d9c315526fc3363ef846a1b5c65 Reviewed-on: https://gem5-review.googlesource.com/11184 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-08-15systemc: Add some deprecated features to sc_clock.*.Gabe Black
Add in two deprecated typedefs, and a deprecated constructor. These are necessary to get the regressions to build. Change-Id: Id8320a67c680acbca0abaee9898158ffd2678d67 Reviewed-on: https://gem5-review.googlesource.com/11183 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-08-15systemc: Add some non-standard sc_trace variants.Gabe Black
These overloads of sc_trace take the unsigned version of some primitive types. The compiler thought it was ambiguous how to convert an unsigned integer value into a signed one since there were several different functions which took signed integer parameters of various sizes. These versions of sc_trace aren't in the standard, but they are in the Accellera implementation and do fix building of the regression tests. Change-Id: I26fd06d90ae6bf5fc5aed24bc2ac826ad69eee31 Reviewed-on: https://gem5-review.googlesource.com/11182 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-08-15systemc: Turn some macros into enums to fix regression test building.Gabe Black
The spec defines these constants to be macros, but the regression test refers to them using the sc_core namespace. That breaks things because the macros don't expand to an identifier, they expand to an expression. This change converts the macros into enums like in the Accellera implementation to get the regression tests to build. Change-Id: I3db7dc87a7a597907df658624a7343bc6ca1734e Reviewed-on: https://gem5-review.googlesource.com/11180 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-08-15systemc: Include boost/bind.hpp in the systemc header.Gabe Black
The systemc spec says that sc_bind, sc_ref and sc_cref macros should expand to boost::bind, boost::ref, and boost::cref respectively, but that it's "use is not mandantory". Unfortunately, the regression tests use those macros without actually including the boost headers for themselves, and so they won't compile without dragging in these boost headers as a dependency. This should be mostly ok to include here since gem5 itself shouldn't include systemc, just the sub headers that systemc brings in. systemc code which includes systemc *will* have a dependency on boost, but that at least contains the new dependency somewhat. Change-Id: I1877a1b7dae2952f30a9d577d778739abbe7ac3b Reviewed-on: https://gem5-review.googlesource.com/11178 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-08-15systemc: Fill out some of the sc_vector.hh classes.Gabe Black
The iterator class needs to have some operators, etc., defined so that tests written against it can compile correctly. The implementations were heavily influenced by the Accellera implementation. Also it should be noted that the systemc spec is incorrect where it defines these classes. When implemented like they are in the Accellera version, the versions of bind in sc_vector_assembly which take sc_vector<T>::iterator and iterator parameters are different, and so they can overload each other. If implemented as described by the spec however, those types are the same and the code won't compile. Change-Id: I62852adf7e6c0a2f3df076ba4e93d2501859c32d Reviewed-on: https://gem5-review.googlesource.com/11177 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-08-15systemc: Add in the deprecated binding port constructors.Gabe Black
These are needed by... you guessed it, the regression tests. Change-Id: Id30e71944cc7f3faca7dcb197f37938368364fcd Reviewed-on: https://gem5-review.googlesource.com/10958 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-08-15systemc: Add a non-standard default writer policy on sc_buffer.Gabe Black
The standard says there's not supposed to be a default writer policy for the sc_buffer template class, but in the Accellera implementation there is, and the regression tests depend on it to compile. Change-Id: I31d17617441224e86c56c54e45364be8f4f45b00 Reviewed-on: https://gem5-review.googlesource.com/10957 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
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