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2018-10-09systemc: Mark a few more tests as expected to return non-zero.Gabe Black
Change-Id: Ic23865d9c22909bb7482223548dbc7a46c356920 Reviewed-on: https://gem5-review.googlesource.com/c/12623 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-10-09systemc: Add some error checks to some classes.Gabe Black
These check whether those classes are being constructed in legal circumstances, and avoids a null pointer dereference. Change-Id: Ied36ee15c3d7bf6ee444351a841c38576780298e Reviewed-on: https://gem5-review.googlesource.com/c/12622 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-10-09systemc: Add a "kind()" overload to sc_port_base.Gabe Black
This is "implementation defined" but needs to exist to match the golden reference output from Accellera. Change-Id: I9b7949343b7c62a8d568abc06ab4dfc88233b20a Reviewed-on: https://gem5-review.googlesource.com/c/12621 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-10-09systemc: Implement the sc_*_resolved classes.Gabe Black
Change-Id: Ib595da10e0f900ee4cc1847d41d29251dacb55d7 Reviewed-on: https://gem5-review.googlesource.com/c/12620 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-10-09systemc: Implement the sc_clock::time_stamp function.Gabe Black
This is just a non-standard static alias for the sc_time_stamp function. Change-Id: Ibcd0559e7dab8232528628259abb8d1bfaee16e0 Reviewed-on: https://gem5-review.googlesource.com/c/12619 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-10-09systemc: Implement sc_mutex.Gabe Black
Change-Id: I8a5bd03b46d44aeca3bba15a01a5f2180b4ed5c7 Reviewed-on: https://gem5-review.googlesource.com/c/12618 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-10-09systemc: Implement sc_semaphore.Gabe Black
Change-Id: I778d41bd81880e76caa71dc92359a00127d8f987 Reviewed-on: https://gem5-review.googlesource.com/c/12617 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-10-09systemc: Ensure SC_LONG_64 is defined and available.Gabe Black
The datatype code was checking if SC_LONG_64 was defined to determine if a long was 64 bits. The code that would define that value was dropped when porting over from the Accellera implementation, and so the wrong code was being included. This change both makes those checks look at the *value* of SC_LONG_64 to ensure that it's not missing by accident, and assigns it a value in sc_fxdefs.hh. Change-Id: Ie9bb1146452a3db1d9d99c0db575098bb06463ff Reviewed-on: https://gem5-review.googlesource.com/c/12616 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-10-09systemc: Implement SC_FORK, SC_JOIN, and SC_CJOIN.Gabe Black
SC_CJOIN is non-standard, but relied on by the Accellera tests. Change-Id: Ia4ddcb1749a07891157a58398137e94fcaa8e815 Reviewed-on: https://gem5-review.googlesource.com/c/12615 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-10-09systemc: Stop assuming picoseconds as the time resolution.Gabe Black
Also adjust some code to avoid floating point rounding problems and integer overflow issues. Change-Id: Ib4b9c4cf4af00333951db5ce07819556141aa5da Reviewed-on: https://gem5-review.googlesource.com/c/12614 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-10-09systemc: Keep all pre-init processes on a single list.Gabe Black
We were keeping track of processes which should be initialized and those which shouldn't on two different lists, and then processing each list one after the other. This could reorder processes from the order they were created, and so cause spurious differences which cause the Accellera tests to fail. This does make the scheduler slightly simpler, so it's not all bad. Change-Id: I63306a41ce7bea91fa9ff2f6774ce9150134ce48 Reviewed-on: https://gem5-review.googlesource.com/c/12613 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-10-09systemc: Track event sensitivities with a list instead of a set.Gabe Black
It's totally legal to signal that an event happened to waiting processes in any order we choose, but to match the order of events which appears in the Accellera test golden output, we need to do things in the order they did. This is less efficient, but will reduce the number of false positives. Change-Id: Ie2882249ae846991d627f5f688a9e89e629bb300 Reviewed-on: https://gem5-review.googlesource.com/c/12612 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-10-09systemc: Mostly implememt sc_simcontext.Gabe Black
Since we don't track the current process using the sc_curr_proc_handle structure, we keep one around just to return from the appropriate accessor, and set its values when it's requested. If the object is kept around, those values won't change to track changing processes. From what I see, none of the tests rely on the value tracking the process beyond the callsight. Change-Id: I1ad3b7a7b15aa0bc4d218f986ffbe7c51501b296 Reviewed-on: https://gem5-review.googlesource.com/c/12611 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-10-09systemc: Centralize module callbacks and report new warnings.Gabe Black
By centralizing module callbacks, the gem5 module class knows when different stages of the simulation are happening and can do it's own extra checks. It also compartmentalizes modules more since the kernel object doesn't have to reach into them to enumerate ports and exports. Change-Id: I55887284af9c05150fe9d054f5b6147cad6092a1 Reviewed-on: https://gem5-review.googlesource.com/c/12610 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-10-09systemc: Change how sc_clock creates processes to match the tests.Gabe Black
Accellera sets up the mechanism which toggles sc_clock differently than it's set up in gem5. This change moves things around a little to more closely match the order things are done by Accellera so that the test output matches. Change-Id: Ia6d327f4cd5d689f6969398f02a66278a3dc010c Reviewed-on: https://gem5-review.googlesource.com/c/12609 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-10-09systemc: Implement the deprecated "timed_out" function.Gabe Black
This function requires some slightly annoying bookkeeping since it doesn't just report whether the current process is running as a result of a timeout, it reports whether it's running as a result of a timeout *and* it could have been running from some other sensitivity instead. Pure timeouts don't count as timeouts which makes it harder to handle in a general way. Change-Id: I533d97fe66d20d7b83aba80f2ef45a8944668070 Reviewed-on: https://gem5-review.googlesource.com/c/12608 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-10-09systemc: Catch exceptions during updates, notifications, and callbacks.Gabe Black
Change-Id: I6005c12ce32d24413618e3955625432985f99f69 Reviewed-on: https://gem5-review.googlesource.com/c/12607 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-10-09systemc: Report an error if notifying during the update phase.Gabe Black
Change-Id: If261c7a981a247884f0a6466756966b454f197f4 Reviewed-on: https://gem5-review.googlesource.com/c/12606 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-10-09systemc: Track the scheduler status using an enum instead of bools.Gabe Black
The scheduler tracked whether it was paused or stopped with two bools which are mutually exclusive. It's useful to be able to also check for some other mutually exclusive states like what phase the scheduler is currently running. Rather than adding a bunch of additional bools, this change switches those mutually exclusive states over to an enum, and adds some methods to access and maintain that enum. Change-Id: Ia9696b2853d1b122c1100c9df0e12b018fe9b84b Reviewed-on: https://gem5-review.googlesource.com/c/12605 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-10-09systemc: Remove a redundant call to update() from the kernel object.Gabe Black
The t0Handler runs the scheduler's initPhase function which has a call to update built into it. There's no reason to call that within one of the kernel's callbacks as well. Change-Id: I02c755b7d53f93accdacf8149cc1988d7a6e214c Reviewed-on: https://gem5-review.googlesource.com/c/12604 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-10-09systemc: Mark a few tests as expected to raise an error.Gabe Black
Change-Id: I8291f5f32fb96c42f75521385cdf14c50243860f Reviewed-on: https://gem5-review.googlesource.com/c/12603 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-10-09systemc: Update some defaults in verify.py.Gabe Black
Change the defaults in verify.py to be more like how I've been running it. This is as close of an approximation as I have to how someone else would want to run it manually. When run as part of a script, it's less cumbersome to have to add extra arguments. Change-Id: Ibd7c7168a38aa5c014ab5c1246c9617c7358e4f9 Reviewed-on: https://gem5-review.googlesource.com/c/12602 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-10-09systemc: Fortify how exceptions are caught and passed around.Gabe Black
This change tightens up exception catching and makes gem5's systemc code react to exceptions more in line with the Accellera implementation. This prevents exceptions from being caught by the pybind11 integration which makes it very difficult to see where an exception came from, and makes the output differ by including a (mostly useless) backtrace. Change-Id: I7130d53a98fadd137073d1718f780f32f57c658c Reviewed-on: https://gem5-review.googlesource.com/c/12601 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-10-09systemc: Merge stderr and stdout when running tests.Gabe Black
The golden output for tests doesn't distinguish between stderr and stdout, and by only comparing against stdout we have to throw away errors which would be good to verify we get right. Also the tests sometimes send output to stderr for no apparent reason, requiring manually patching the tests. This change adds filters for two messages which used to go to stderr in gem5 but now show up in the diffs, one that just says the simulation is starting, and the other for warns of unimplemented functionality. The second warning should be turned on at some point so we make sure everything the tests touch works and they don't just work by coincidence, but for now it introduces a lot of noise among otherwise passing tests. Change-Id: I3b14f7807af561a79d6e0ca87aff1ab6051be596 Reviewed-on: https://gem5-review.googlesource.com/c/12600 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-10-09systemc: Warn if a process is dont_initialize with no static sensitivieis.Gabe Black
Change-Id: I4db64f42872a6fb459faa401abdad3f168297347 Reviewed-on: https://gem5-review.googlesource.com/c/12599 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-10-09systemc: Report a warning if an event or object needs to be renamed.Gabe Black
Change-Id: I8085ba19fd7acd69d07a1e032f2fd18b6c5fed6f Reviewed-on: https://gem5-review.googlesource.com/c/12598 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-10-09systemc: Teach verify.py to filter messages which start within a line.Gabe Black
It's possible for a test to generate a warning or error in the middle of a line of output. The previous filter generator function would create a filter which would only detect those messages which started at the beginning of a new line. Change-Id: I40372dc33049df84f3111e4d63a6619db97dcaa3 Reviewed-on: https://gem5-review.googlesource.com/c/12597 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-10-09systemc: Implement sc_time::to_string.Gabe Black
This is just another way to call sc_time::print, but it returns a string instead of printing to a stream. Change-Id: Idc90c539127e6153af9511bfe5f258b870362330 Reviewed-on: https://gem5-review.googlesource.com/c/12596 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-10-09systemc: Match how Accellera schedules processes even more closely.Gabe Black
The Accellera implementation runs processes in a cycle where it first runs all the methods it has, then all the threads, and then starts again in case any new methods have been scheduled. This keeps methods and processes in the order they were marked ready (what a prior change made this scheduler do), but also keeps the methods together and the threads together (something it used to do, but that change made it stop doing). This change should make the gem5 scheduler match in both respects. Note that its correct to run the processes in whatever order we want, it's just that if we're going to compare against the "golden" output from the Accellera tests, we need to match the order to get sensible results. Change-Id: I0b1e4ed24c56f97921148b74e90c2dca5fd3fbc4 Reviewed-on: https://gem5-review.googlesource.com/c/12595 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-10-09systemc: Implement the nonstandard halt function.Gabe Black
Change-Id: Ie9bd9db92a63169980230bc9a15e153d5609dd0b Reviewed-on: https://gem5-review.googlesource.com/c/12594 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-10-09arch-arm: Add have_crypto System parameterGiacomo Travaglini
This patch adds the have_crypto ArmSystem parameter for enabling crypto extension. This is done by modifying the AArch32/AArch64 ID registers at startup time. Change-Id: I6eefb7e6f6354802a14ea639ad53b75f8e1e11c5 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/13252 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Andreas Sandberg <andreas.sandberg@arm.com> Maintainer: Jason Lowe-Power <jason@lowepower.com>
2018-10-09cpu: Fix MinorCPU executing Crypto InstructionsGiacomo Travaglini
Crypto instruction classes added to the MinorDefaultFloatSimdFU. Change-Id: I0cd4aa422bec74285595312a8cf01f5f425a82cd 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/13251 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Jason Lowe-Power <jason@lowepower.com>
2018-10-09arch-arm: AArch64 Crypto AESGiacomo Travaglini
This patch implements the AArch64 AES instructions from the Crypto extension. Change-Id: I9143041ec7e1c6a50dcad3f72d7d1b55d6f2d402 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/13250 Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
2018-10-09arch-arm: AArch64 Crypto SHAGiacomo Travaglini
This patch implements the AArch64 secure hashing instructions from the Crypto extension. Change-Id: I2cdfa81b994637c880f2523fe37cdc6596d05cb1 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/13249 Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
2018-10-09arch-arm: AArch32 Crypto AESMatt Horsnell
This patch implements the AArch32 AES instructions from the Crypto extension. Change-Id: I51e6deda748b0c26135bcfe9d0c7128f3af91f3d Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Reviewed-by: Matt Horsnell <matt.horsnell@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/13248 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
2018-10-09arch-arm: AArch32 Crypto SHAMatt Horsnell
This patch implements the AArch32 secure hashing instructions from the Crypto extension. Change-Id: Iaba8424ab71800228a9aff039d93f5c35ee7d8e5 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/13247 Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
2018-10-08dev, arm: remove the RealViewEB platformCiro Santilli
This is an old platform, and we haven't had official Linux kernel configs for it in a while, so we've decided to deprecate it. Furthermore, trying to use it fails with: object 'RealViewEB' has no attribute 'pci_host' and the last commit in the class happened two years ago, which indicates that no one has been using it. Change-Id: Icc674b00b152eb3246e05141dbaf2624cc720f21 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/12471 Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
2018-10-08arch-arm: Mark ArmProcess method as overrideMatteo Andreozzi
Allows compilation on clang3.5+ by fixing Winconsistent-missing-override Change-Id: Ic0ebf3869fc2d9a29fcf7cf5a6535952f41714d0 Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/13227 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
2018-10-05mem-cache: Fix FALRU hash invalidationDaniel R. Carvalho
The block was being invalidated before the hash could erase its entry, therefore it was using invalid values (tag was being assigned MaxAddr and the secure bit was reset). This change reorders the calls, so that the appropriate hash entry is erased. Change-Id: I161463df0f8f5220179bc68d7be12051e5390d01 Signed-off-by: Daniel R. Carvalho <odanrc@yahoo.com.br> Reviewed-on: https://gem5-review.googlesource.com/c/13210 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-10-05mem-cache: Make checking function const in FALRUDaniel R. Carvalho
The checking function should not be able to modify either the head and tail pointers nor should it modify its class. Change-Id: I2ad495f0c8c6b778d48512143e94b4c9a353f22e Signed-off-by: Daniel R. Carvalho <odanrc@yahoo.com.br> Reviewed-on: https://gem5-review.googlesource.com/c/13209 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-10-05mem-cache: Make boundaries in FALRU an STL containerDaniel R. Carvalho
Turn the dynamically allocated array of pointers "boundaries" into a STL vector. Change-Id: I3409898473b155f69b4c6e038eba2dffb5b09380 Signed-off-by: Daniel R. Carvalho <odanrc@yahoo.com.br> Reviewed-on: https://gem5-review.googlesource.com/c/13208 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Jason Lowe-Power <jason@lowepower.com>
2018-10-05mem-cache: Fix FALRU inCachesMask initializationDaniel R. Carvalho
inCachesMask is not being initialized, which triggers an assertion on insertion. Fix this by implementing a default constructor for the FALRUBlk. Change-Id: I587cf5e0191c4587d938e6ab6036ec1b32f37793 Signed-off-by: Daniel R. Carvalho <odanrc@yahoo.com.br> Reviewed-on: https://gem5-review.googlesource.com/c/13207 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Jason Lowe-Power <jason@lowepower.com>
2018-10-03systemc: Change the default naming scheme to use sc_gen_unique_name.Gabe Black
The spec says the default name should just be "object", but the Accellera implementation calls sc_gen_unique_name, and the tests expects that. Change-Id: Ic6922a6d9fb53f3126a9d527868fc11da5320446 Reviewed-on: https://gem5-review.googlesource.com/c/12593 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-10-03systemc: "Fix" some error message formatting.Gabe Black
These changes make the output match what Accellera outputs so that the tests will pass. Change-Id: I1260cec35fa39586fbef39047b9da4ff3c03b3ed Reviewed-on: https://gem5-review.googlesource.com/c/12592 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-10-03systemc: Fix a typo/bug in sc_int_base.hh.Gabe Black
When being turned into gem5 coding style, a pair of "!" operators were dropped, reversing the behavior of the functions involved. Change-Id: Ife795c22aff953c5ab592e7baa3a5e1c15e63c84 Reviewed-on: https://gem5-review.googlesource.com/c/12591 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-10-03systemc: Make some tests use cout instead of cerr to report completion.Gabe Black
cerr goes to simerr, but we compare simout against the golden output. Change-Id: I9270866a92dd06a23d47c1964dacc4872030f30d Reviewed-on: https://gem5-review.googlesource.com/c/12470 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-10-03systemc: Copy the msgType and msg parameters of sc_report.Gabe Black
The original strings pointed to by those parameters may go away before the sc_report has been completely consumed. By copying them, we make sure other consumers downstream can still access them. Change-Id: Iab9a802b7ae3bb5aed3a2716cd92886b8d241dfa Reviewed-on: https://gem5-review.googlesource.com/c/12469 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-10-03systemc: Ensure sc_stop during callbacks actually stops.Gabe Black
Make sure calling sc_stop during the appropriate callbacks will actually skip future action by skipping later callbacks, by flushing the scheduler before running init (so it doesn't really do anything but record that it's in running mode now), and schedule the stop event. Change-Id: I5edfbceda457df88d15bfcac4d97e8578205ec5b Reviewed-on: https://gem5-review.googlesource.com/c/12468 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-10-03systemc: Implement the nonstandard at_negedge and at_posedge.Gabe Black
Change-Id: I7ea5cfd309db4b9883df551fd7dcec186e4f38a3 Reviewed-on: https://gem5-review.googlesource.com/c/12467 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-10-03systemc: When stopping immediately, block new processes/updates.Gabe Black
When stopping immediately, we're supposed to finish the current process but not run any other processes or go to the update phase. The rest of the process could introduce new processes or request new updates, so we need to make sure we block those if we're in the process of stopping. Change-Id: I9cc867d294cf171dfedb4b9d43fbc167c2057de8 Reviewed-on: https://gem5-review.googlesource.com/c/12466 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
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