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2019-04-28mem: Minimize the use of MemObject.Gabe Black
MemObject doesn't provide anything beyond its base ClockedObject any more, so this change removes it from most inheritance hierarchies. Occasionally MemObject is replaced with SimObject when I was fairly confident that the extra functionality of ClockedObject wasn't needed. Change-Id: Ic014ab61e56402e62548e8c831eb16e26523fdce Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/18289 Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com> Maintainer: Gabe Black <gabeblack@google.com>
2019-04-26arch-arm: updateMiscReg not setting isHyp in aarch64Giacomo Travaglini
The isHyp flag should be set for a TLB::NormalTran when in EL2. This was happening in aarch32 only, where the CPSR mode is checked, while aarch64 was only using it for explicit EL2 translations, like for AT instructions. Change-Id: I54605811e9dde75b5cf8868190b0f4c2a8d46570 Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/18394 Maintainer: Andreas Sandberg <andreas.sandberg@arm.com> Tested-by: kokoro <noreply+kokoro@google.com>
2019-04-26arm: Factor some repetition out of the ProcessInfo constructor.Gabe Black
Change-Id: I34f952d1097886704d37304478de125a915b2615 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/18371 Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com> Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Jason Lowe-Power <jason@lowepower.com>
2019-04-25arm: Fix some style issues in stacktrace.cc.Gabe Black
De-indent the ArmISA namespace, and wrap some overly long lines. Change-Id: Idc02b025bdfda483ddbd27d662e2314a5cbcb23c Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/18370 Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Jason Lowe-Power <jason@lowepower.com>
2019-04-25x86: Refactor the ProcessInfo constructor.Gabe Black
That function had a lot of repetition which is easily factored out into its own function. Change-Id: I3b7a522de2ba808856bb59df75b80efde6780e3f Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/18369 Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com> Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Jason Lowe-Power <jason@lowepower.com>
2019-04-25x86: Fix some style issues in stacktrace.cc.Gabe Black
De-indent the X86ISA namespace, and wrap some overly long lines. Change-Id: I01a6b66a1cf721e16e4ed4dd1c3469ee112e9177 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/18368 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Jason Lowe-Power <jason@lowepower.com> Tested-by: kokoro <noreply+kokoro@google.com>
2019-04-25arch-arm: Remove un-needed hyp flag in TLBI operationsGiacomo Travaglini
The hyp flag was probably a legacy pre-v8 flag distinguishing invalidation targeting PL2 translation regime (hyp mode). Since the introduction of target_el parameter, hyp boolean is not needed anymore. The patch works by setting the hyp flag in the flush* methods in the TLB automatically by checking if target_el == EL2. Change-Id: I798009e09ff24a383dea871e348188bae2685e8e Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Reviewed-by: Jan-Peter Larsson <jan-peter.larsson@arm.com> Reviewed-by: Anouk Van Laer <anouk.vanlaer@arm.com> Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/18389 Maintainer: Andreas Sandberg <andreas.sandberg@arm.com> Tested-by: kokoro <noreply+kokoro@google.com>
2019-04-25arch-arm: Correct target EL field in TLBI operationsGiacomo Travaglini
Some TLB Invalidation operations affecting the EL2 translation regime were marked as targeting EL1 instead of EL2 Change-Id: I77821eec7a409e9df6a6814855f9a375832ffe74 Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Reviewed-by: Jan-Peter Larsson <jan-peter.larsson@arm.com> Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/18388 Maintainer: Andreas Sandberg <andreas.sandberg@arm.com> Tested-by: kokoro <noreply+kokoro@google.com>
2019-04-22sim-se: Enhance clone for X86KvmCPUAlexandru Dutu
This changeset enables clone to work with X86KvmCPU model, which will allow running multi-threaded applications at near hardware speeds. Even though the application is multi-threaded, the KvmCPU model uses one event queue, therefore, only one hardware thread will be used, through KVM, to simulate multiple application threads. Change-Id: I2b2a7b1edb1c56eeb9c4fa0553cd236029cd53f8 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/18268 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Jason Lowe-Power <jason@lowepower.com> Tested-by: kokoro <noreply+kokoro@google.com>
2019-04-22cpu: Eliminate the ProxyThreadContext class.Gabe Black
Replace it with direct inheritance from the ThreadContext class in the SimpleThread class which was the only place it was used. Also take the opportunity to use some specialized types instead of ints, etc., add some consts, and fix some style issues. Change-Id: I5d2cfa87b20dc43615e33e6755c9d016564e9c0e Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/18048 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com> Maintainer: Gabe Black <gabeblack@google.com> Tested-by: kokoro <noreply+kokoro@google.com>
2019-04-11arch-arm: Enable PMSELR_EL0 read in PMUGiacomo Travaglini
Change-Id: Ic1ec1d03464a7ce42295cee8a9f4ebcd3e90def1 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/public/gem5/+/17948 Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
2019-04-03misc: Removed inconsistency in O3* debug msgsAndrea Mondelli
Added consistency in the DEBUG message form, to allow a better parsing. Fixed sn/tid type parameter. Removed some annoying newlines Change-Id: I4761c49fc12b874a7d8b46779475b606865cad4b Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/17248 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Jason Lowe-Power <jason@lowepower.com>
2019-04-02dev-arm: Make GICv3 maintenance interrupt an ArmInterruptGiacomo Travaglini
Change-Id: I88e2b72849cdf3f69026c62517303837e7d3d551 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/public/gem5/+/17629 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
2019-04-01dev-arm: Correct cast of template parameterAndrea Mondelli
Clang with -Wconstant-conversion is _very_ restrictive on casting. The shift operator results in an incorrect promotion. This patch add a compile-time static cast that remove the error when clang is used. Change-Id: I3aa1e77da2565799feadc32317d5faa111b2de86 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/17308 Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
2019-03-28arch-arm: Fix use of bitwise operators on booleansJavier Setoain
Change-Id: I3762b2921f1d00a9104d8dc11a19dc0a219581e5 Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/17288 Reviewed-by: Gabe Black <gabeblack@google.com> Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
2019-03-28arch-arm: Fix index generation for VecElem operandsGiacomo Travaglini
Current operand generation is not providing VecElems with the right vector index and element index. The bug was covered when registers were 128 bit wide, but with SVE we have augmented the vector register size and the bug has been exposed. E.g. With dest = 2, FpDestP2 = (vec_index = 0, elem_index = 4) whereas it should be FpDestP2 = (vec_index = 1, elem_index = 0) Change-Id: Iad02fb477afd0d3dd3d437bf2ca4338fbd142107 Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Reviewed-by: Ciro Santilli <ciro.santilli@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/17710
2019-03-25arch-arm: Add missing fall-through defaultsJavier Setoain
Change-Id: Ie64b83d754c4719a77c7788879be71304a9b786e Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/17289 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Reviewed-by: Andrea Mondelli <Andrea.Mondelli@ucf.edu> Maintainer: Giacomo Travaglini <giacomo.travaglini@arm.com>
2019-03-25arch-power: Rename program counter registersSandipan Das
The Power ISA specification lists the Program Counter (PC) and the Next Program Counter (NPC) registers as Current Instruction Address (CIA) and Next Instruction Address (NIA). This applies the ISA naming convention for these two registers. Change-Id: I8b9094ab1c809f4dfdb4d7330c17f360adf063e9 Signed-off-by: Sandipan Das <sandipan@linux.ibm.com> Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/16603 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2019-03-25arch-power: Simplify doubleword operand typesSandipan Das
Currently, 'sq' and 'uq' are used to represent signed and unsigned doublewords respectively. Since all recent Power ISA specifications list 128-bit quadwords as a valid data type, it may be misleading to use the current terminology in case support for such operands are added in the future. So, to simplify this, 'sd' and 'ud' are used to represent signed and unsigned doublewords respectively. Change-Id: Ie7831c596fc8f9ddfdf3b652c37cfe26484ebe01 Signed-off-by: Sandipan Das <sandipan@linux.ibm.com> Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/16602 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2019-03-22sim-se: Fixed initialization array sizeTiago Muck
Doubled the size of the zeroed auxiliary vector since 2 * intSize on aarch64 > sizeof(uint64). Change-Id: I5196b000a696e9ea3f2b5daa5d5bb071794369aa Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/17088 Reviewed-by: Ciro Santilli <ciro.santilli@arm.com> Maintainer: Brandon Potter <Brandon.Potter@amd.com>
2019-03-21dev-arm: ambiguous use of getPort()Andrea Mondelli
The recent introduction of getPort() creates a conflict with the existing method used in arm MMU. This patch rename the old getPort() in getDMAPort() according to the returned value (DmaPort class type) Change-Id: Ief3d83650fd6b08490522341631244be06e380ce Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/17469 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Andreas Sandberg <andreas.sandberg@arm.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>
2019-03-14arch-arm,cpu: Add initial support for Arm SVEGiacomo Gabrielli
This changeset adds initial support for the Arm Scalable Vector Extension (SVE) by implementing: - support for most data-processing instructions (no loads/stores yet); - basic system-level support. Additional authors: - Javier Setoain <javier.setoain@arm.com> - Gabor Dozsa <gabor.dozsa@arm.com> - Giacomo Travaglini <giacomo.travaglini@arm.com> Thanks to Pau Cabre for his contribution of bugfixes. Change-Id: I1808b5ff55b401777eeb9b99c9a1129e0d527709 Signed-off-by: Giacomo Gabrielli <giacomo.gabrielli@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/13515 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
2019-03-11arch-hsail: changed gen.py shebang from python(3) to python2.7Ryan Gambord
gen.py includes code_formatter from m5.util. code_formatter uses the python2 __metaclass__ attribute, which is ignored by python3, causing the code_formatter.pattern attribute to be unset. This prevented scons from building against HSAIL_X86 Signed-off-by: Ryan Gambord <gambordr@oregonstate.edu> Change-Id: I5a8bf9e730fd629eb7f9a7ac2dce928235a0dae4 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/17008 Reviewed-by: Andrea Mondelli <Andrea.Mondelli@ucf.edu> Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com> Maintainer: Anthony Gutierrez <anthony.gutierrez@amd.com>
2019-03-11arch-arm: Fixing implicit fallthrough build errorsRyan Gambord
2c242d6 introduced implicit-fallthrough errors when building against ARM. Added "default: return new Unknown(machInst);" to offending switch statements; please verify this is the corret behavior Signed-off-by: Ryan Gambord Change-Id: I5f5e3661ec562d4a3b2699e07d1195e6877ff959 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/17071 Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Maintainer: Giacomo Travaglini <giacomo.travaglini@arm.com>
2019-03-01mem-cache: alias to mem::getMasterPort in TLB classAndrea Mondelli
TLB:getMasterPort is used to obtain the PageWalkMasterPort if present and hides the BaseTLB::getMasterPort(). The TLB::getMasterPort() is renamed according to the expected behavior. Change-Id: If4f61189094a706d59805cd10f4f814e5830eda8 Reviewed-on: https://gem5-review.googlesource.com/c/16648 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
2019-03-01arch-arm: implement floating point aarch32 VCVTA familyCiro Santilli
These instructions round floating point to integer, and were added to aarch32 as an extension to ARMv7. Change-Id: I62d1705badc95a4e8954a5ad62b2b6bc9e4ffe00 Reviewed-on: https://gem5-review.googlesource.com/c/16788 Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Maintainer: Andreas Sandberg <andreas.sandberg@arm.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>
2019-02-20x86: 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>
2019-02-18arch-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>
2019-02-13sim-se: update the arm kernel versionAyaz Akram
This change is needed to run cpu tests with ARM binaries compiled with newer linux kernel headers Change-Id: I6cbf132c38d4b18f971ee32272ddb6a5a791a625 Signed-off-by: Ayaz Akram <yazakram@ucdavis.edu> Reviewed-on: https://gem5-review.googlesource.com/c/15855 Reviewed-by: Brandon Potter <Brandon.Potter@amd.com> Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Maintainer: Brandon Potter <Brandon.Potter@amd.com> Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
2019-02-12python: Replace dict.has_key with 'key in dict'Andreas Sandberg
Python 3 has removed dict.has_key in favour of 'key in dict'. Change-Id: I9852a5f57d672bea815308eb647a0ce45624fad5 Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/15987 Reviewed-by: Giacomo Travaglini <giacomo.travaglini@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>
2019-02-12arch-mips: Remove unused Python fileAndreas Sandberg
Change-Id: I7155915fccdec1d9f116f2a8617474188a91165b Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/16302 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2019-02-08riscv: fix AMO, LR and SC instructionsTuan Ta
(1) Atomic Memory Operation (AMO) This patch changes how RISC-V AMO instructions are implemented. For each AMO, instead of issuing a locking load and an unlocking store request to downstream memory system, this patch issues a single memory request that contains a corresponding AtomicOpFunctor to the memory system. Once the memory system receives the request, the atomic operation is executed in one single step. This patch also changes how AMO instructions handle acquire and release flags in AMOs (e.g., amoadd.aq and amoadd.rl). If an AMO is associated with an acquire flag, a memory fence is inserted after the AMO completes as a micro-op. If an AMO is associated with a release flag, another memory fence is inserted before the AMO executes. If both flags are specified, the AMO is broken down into a sequence of 3 micro-ops: mem fence -> atomic RMW -> mem fence. This change makes this AMO implementation comply to the release consistency model. (2) Load-Reserved (LR) and Store-Conditional (SC) Addresses locked by LR instructions are tracked in a stack data structure. LR instruction pushes its target address to the stack, and SC instruction pops the top address from the stack. As specified by RISC-V ISA, a SC fails if its target address does not match with the most recent LR. Previously, there was a single stack for all hardware thread contexts. A shared stack between thread contexts can lead to a infinite sequence of failed SCs if LRs from other threads keep pushing new addresses to this stack. This patch gives each context its private stack to address the problem. This patch also adds extra memory fence micro-ops to lr/sc to guarantee a correct execution order of memory instructions with respect to release consistency model. Change-Id: I1e95900367c89dd866ba872a5203f63359ac51ae Reviewed-on: https://gem5-review.googlesource.com/c/8189 Reviewed-by: Alec Roelke <ar4jc@virginia.edu> Maintainer: Alec Roelke <ar4jc@virginia.edu>
2019-02-08riscv: fixed syscall return valueTuan Ta
In case of failure, a syscall returns a negative value encoding the error code. This patch makes the risc-v implementation returns the encoded value instead of its absolute value upon a failure of a syscall. Change-Id: I6032b0337fe1cff5b326dbc6bb3b87a415f03300 Reviewed-on: https://gem5-review.googlesource.com/c/9627 Reviewed-by: Alec Roelke <ar4jc@virginia.edu> Maintainer: Alec Roelke <ar4jc@virginia.edu>
2019-02-08riscv: ignore nanosleep syscallTuan Ta
Change-Id: I564a09564da668a5db3e75f15b33efaca363d71a Reviewed-on: https://gem5-review.googlesource.com/c/9624 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Jason Lowe-Power <jason@lowepower.com>
2019-02-08arch-riscv: initialize RISC-V's thread pointer register in clone syscallTuan Ta
This patch initializes thread pointer register to Thread Local Storage (TLS)'s pointer given to a clone system call. Change-Id: I03e2cf4763e6a0ed31f357772a513a05e1e3461b Reviewed-on: https://gem5-review.googlesource.com/c/9622 Reviewed-by: Brandon Potter <Brandon.Potter@amd.com> Maintainer: Brandon Potter <Brandon.Potter@amd.com>
2019-02-08arch-arm: Fix Virtual interrupts in AArch64Giacomo Travaglini
Checking if cpsr.mode is equal to MODE_HYP doesn't work for AArch64. This is because AArch64 is using different modes when in EL2, like EL2T and EL2H. This made Virtual Interrupts to be triggered even when executing in EL2 (hypervisor) whereas they should interrupt the scheduled VM only (Non-Secure EL0 and EL1). This patch is fixing this by using the generic currEL() helper for getting the exception level, which is working for both AArch32 and AArch64. Change-Id: I08640050ef06261f280ba1e63ca9f32c805af845 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/16202 Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
2019-02-08arch-arm: Fix extra comma in b7ce897f1e9545785bde982f72d04830c19d9a30Giacomo Travaglini
Change-Id: I649f8507ccb6c814b46b0b9b7e39dc912ecd9006 Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/16242
2019-02-08arch-arm: Allow ArmPPI usage for PMUGiacomo Travaglini
Differently from ArmSPIs, ArmPPI interrupts need to be instantiated by giving a ThreadContext pointer in the ArmPPIGen::get() method. Since the PMU is registering the ThreadContext only at ISA startup time, ArmPPI generation in deferred until the PMU has a non NULL pointer. Change-Id: I17daa6f0e355363b8778d707b440cab9f75aaea2 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/16204 Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
2019-02-08arch-arm: Fix initialization of PMU countersRuben Ayrapetyan
A version of Linux kernel initializes counters before enabling them. Without this change, gem5 overwrites the value of counter, which causes incorrect counter values derived by kernel. Change-Id: If0c515111103018d5f65f74434d7711a67aeaee4 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/16203 Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
2019-02-07arch-riscv: Enable support for riscv 32-bit in SE mode.Austin Harris
This patch splits up the riscv SE mode support for 32 and 64-bit. A future patch will add support for decoding rv32 instructions. Change-Id: Ia79ae19f753caf94dc7e5830a6630efb94b419d7 Signed-off-by: Austin Harris <austinharris@utexas.edu> Reviewed-on: https://gem5-review.googlesource.com/c/15355 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Reviewed-by: Alec Roelke <alec.roelke@gmail.com> Maintainer: Alec Roelke <alec.roelke@gmail.com>
2019-02-06riscv: remove NonSpeculative flag from fence instTuan Ta
Fence instruction origially had two flags NonSpeculative and MemBarrier. In O3 model, MemBarrier instructions are inserted into the instruction queue by the InstructionQueue::insertBarrier (at src/cpu/o3/iew_impl.hh:1083). Barrier instructions are implicitly assumed to be non-speculative. Adding NonSpeculative flag to fence instruction makes it inserted into the instruction queue twice (at src/cpu/o3/iew_impl.hh:1083 and :1111). This can lead to a deadlock if both pointers to the instruction are not cleared from the queue when the instruction retires. This patch removes NonSpeculative flag from the fence inst. Change-Id: I26573d12a0b52f43b73c0e51158286dc98d05ea4 Reviewed-on: https://gem5-review.googlesource.com/c/8183 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Reviewed-by: Alec Roelke <ar4jc@virginia.edu> Maintainer: Alec Roelke <ar4jc@virginia.edu>
2019-02-06arch-riscv: Initialize interrupt maskTuan Ta
This patch initializes RISCV interrupt mask to 0. Change-Id: I56289d9f3f319e239e305befea006a0ad4d86b75 Reviewed-on: https://gem5-review.googlesource.com/c/16162 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Jason Lowe-Power <jason@lowepower.com>
2019-02-05misc: added missing override specifierAndrea Mondelli
Added missing specifier for various virtual functions. Change-Id: I4783e92d78789a9ae182fad79aadceafb00b2458 Reviewed-on: https://gem5-review.googlesource.com/c/16103 Reviewed-by: Hoa Nguyen <hoanguyen@ucdavis.edu> Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Jason Lowe-Power <jason@lowepower.com>
2019-02-05riscv: Get rid of ISA specific register types in Interrupts.Austin Harris
Change-Id: I5542649c6af27a286f276a289b86c40dd7e32abc Signed-off-by: Austin Harris <austinharris@utexas.edu> Reviewed-on: https://gem5-review.googlesource.com/c/16122 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2019-02-01cpu, arch: Replace the CCReg type with RegVal.Gabe Black
Most architectures weren't using the CCReg type, and in x86 and arm it was already a uint64_t. Change-Id: I0b3d5e690e6b31db6f2627f449c89bde0f6750a6 Reviewed-on: https://gem5-review.googlesource.com/c/14515 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2019-01-31power: Get rid of some ISA specific register types.Gabe Black
Change-Id: If63acb10705a9f442255680917d16630748ca8e1 Reviewed-on: https://gem5-review.googlesource.com/c/14465 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
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