Hello,
I am trying to compile a PIMProcess function in gem5-based PIMSim. The function
includes takeOverFrom() which is supposed to let PIM cores take over all the
contents from host-side CPU.
These are the lines for pim_cpu configuration in the memory, where I have added
an interrupt controller.
pim_sys = []
for i in range (num_processors):
pim_cpu = TimingSimpleCPU(ispim =True, total_host_cpu =
options.num_cpus, switched_out =False)
pim_vd = VoltageDomain()
pim_cpu.clk_domain = SrcClockDomain()
pim_cpu.clk_domain.clock = '2GHz'
pim_cpu.clk_domain.voltage_domain = pim_vd
pim_cpu.createInterruptController(ispim = True)
pim_cpu.interrupts[0].pio = system.membus.master
pim_cpu.interrupts[0].int_master = system.membus.slave
pim_cpu.interrupts[0].int_slave = system.membus.master
pim_cpu.workload = system.cpu[0].workload[0]
pim_cpu.isa = [ default_isa_class()]
pim_sys.append(pim_cpu)
pim_sys[i].icache_port = system.membus.slave
pim_sys[i].dcache_port = system.membus.slave
system.pim_sys = pim_sys
template <class Impl>
void
FullO3CPU<Impl>::PIMProcess(ThreadContext *tc, int pim_id){
BaseCPU* pim_cpu =(BaseCPU*)SimObject::find("system.pim_sys");
this->haltContext(tc->contextId());
pim_cpu->takeOverFrom(this);
pim_cpu->host_id=this->_cpuId;
pim_cpu->activateContext(0);
}
--- BEGIN LIBC BACKTRACE ---
build/X86/gem5.opt(_Z15print_backtracev+0x15)[0xfef065]
build/X86/gem5.opt[0xffca7d]
/lib64/libpthread.so.0(+0xf630)[0x7fd9459b6630]
build/X86/gem5.opt(_ZN15TimingSimpleCPU16handleReadPacketEP6Packet+0x157)[0x11350a7]
build/X86/gem5.opt(_ZN15TimingSimpleCPU17finishTranslationEP21WholeTranslationState+0x248)[0x11391a8]
build/X86/gem5.opt(_ZN15DataTranslationIP15TimingSimpleCPUE6finishERKSt10shared_ptrI9FaultBaseERKS3_I7RequestEP13ThreadContextN7BaseTLB4ModeE+0x110)[0x11413a0]
build/X86/gem5.opt(_ZN6X86ISA3TLB15translateTimingERKSt10shared_ptrI7RequestEP13ThreadContextPN7BaseTLB11TranslationENS8_4ModeE+0xaf)[0x9b3b7f]
build/X86/gem5.opt(_ZN15TimingSimpleCPU15initiateMemReadEmj5FlagsImE+0x518)[0x1137098]
build/X86/gem5.opt(_ZN17SimpleExecContext15initiateMemReadEmj5FlagsImE+0x11)[0x1141581]
build/X86/gem5.opt(_ZNK10X86ISAInst7LdisBig11initiateAccEP11ExecContextPN5Trace10InstRecordE+0xc1)[0xd50631]
build/X86/gem5.opt(_ZN15TimingSimpleCPU14completeIfetchEP6Packet+0x373)[0x1137cb3]
build/X86/gem5.opt(_ZN10EventQueue10serviceOneEv+0x125)[0xff6425]
build/X86/gem5.opt(_Z9doSimLoopP10EventQueue+0xf8)[0x10088e8]
build/X86/gem5.opt(_Z8simulatem+0x966)[0x10094d6]
build/X86/gem5.opt[0x940dba]
build/X86/gem5.opt[0x920e55]
/lib64/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x730a)[0x7fd9452b981a]
/lib64/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x7ed)[0x7fd9452bb64d]
/lib64/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x663c)[0x7fd9452b8b4c]
/lib64/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x7ed)[0x7fd9452bb64d]
/lib64/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x663c)[0x7fd9452b8b4c]
/lib64/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x7ed)[0x7fd9452bb64d]
/lib64/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x663c)[0x7fd9452b8b4c]
/lib64/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x7ed)[0x7fd9452bb64d]
/lib64/libpython2.7.so.1.0(PyEval_EvalCode+0x32)[0x7fd9452bb752]
/lib64/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x5513)[0x7fd9452b7a23]
/lib64/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x7ed)[0x7fd9452bb64d]
/lib64/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x663c)[0x7fd9452b8b4c]
/lib64/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x7ed)[0x7fd9452bb64d]
/lib64/libpython2.7.so.1.0(PyEval_EvalCode+0x32)[0x7fd9452bb752]
/lib64/libpython2.7.so.1.0(+0x100b8f)[0x7fd9452d4b8f]
/lib64/libpython2.7.so.1.0(PyRun_StringFlags+0x65)[0x7fd9452d5a05]
--- END LIBC BACKTRACE ---
I keep getting a fault segmentation and could not resolve the issue.
Am I missing something? Could anyone help me with this?
Thank you in advance,
Regards,
Hessa.
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