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/*
* Copyright (c) 2010-2012, 2016-2017, 2019 ARM Limited
* Copyright (c) 2013 Advanced Micro Devices, Inc.
* All rights reserved
*
* The license below extends only to copyright in the software and shall
* not be construed as granting a license to any other intellectual
* property including but not limited to intellectual property relating
* to a hardware implementation of the functionality of the software
* licensed hereunder. You may use the software subject to the license
* terms below provided that you ensure that this notice is replicated
* unmodified and in its entirety in all distributions of the software,
* modified or unmodified, in source code or in binary form.
*
* Copyright (c) 2004-2006 The Regents of The University of Michigan
* All rights reserved.
*
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* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
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* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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*/
#ifndef __CPU_O3_THREAD_CONTEXT_IMPL_HH__
#define __CPU_O3_THREAD_CONTEXT_IMPL_HH__
#include "arch/generic/traits.hh"
#include "arch/registers.hh"
#include "config/the_isa.hh"
#include "cpu/o3/thread_context.hh"
#include "debug/O3CPU.hh"
template <class Impl>
PortProxy&
O3ThreadContext<Impl>::getVirtProxy()
{
return thread->getVirtProxy();
}
template <class Impl>
void
O3ThreadContext<Impl>::takeOverFrom(ThreadContext *old_context)
{
::takeOverFrom(*this, *old_context);
this->getIsaPtr()->takeOverFrom(this, old_context);
TheISA::Decoder *newDecoder = getDecoderPtr();
TheISA::Decoder *oldDecoder = old_context->getDecoderPtr();
newDecoder->takeOverFrom(oldDecoder);
thread->funcExeInst = old_context->readFuncExeInst();
thread->noSquashFromTC = false;
thread->trapPending = false;
}
template <class Impl>
void
O3ThreadContext<Impl>::activate()
{
DPRINTF(O3CPU, "Calling activate on Thread Context %d\n",
threadId());
if (thread->status() == ThreadContext::Active)
return;
thread->lastActivate = curTick();
thread->setStatus(ThreadContext::Active);
// status() == Suspended
cpu->activateContext(thread->threadId());
}
template <class Impl>
void
O3ThreadContext<Impl>::suspend()
{
DPRINTF(O3CPU, "Calling suspend on Thread Context %d\n",
threadId());
if (thread->status() == ThreadContext::Suspended)
return;
if (cpu->isDraining()) {
DPRINTF(O3CPU, "Ignoring suspend on TC due to pending drain\n");
return;
}
thread->lastActivate = curTick();
thread->lastSuspend = curTick();
thread->setStatus(ThreadContext::Suspended);
cpu->suspendContext(thread->threadId());
}
template <class Impl>
void
O3ThreadContext<Impl>::halt()
{
DPRINTF(O3CPU, "Calling halt on Thread Context %d\n", threadId());
if (thread->status() == ThreadContext::Halting ||
thread->status() == ThreadContext::Halted)
return;
// the thread is not going to halt/terminate immediately in this cycle.
// The thread will be removed after an exit trap is processed
// (e.g., after trapLatency cycles). Until then, the thread's status
// will be Halting.
thread->setStatus(ThreadContext::Halting);
// add this thread to the exiting list to mark that it is trying to exit.
cpu->addThreadToExitingList(thread->threadId());
}
template <class Impl>
Tick
O3ThreadContext<Impl>::readLastActivate()
{
return thread->lastActivate;
}
template <class Impl>
Tick
O3ThreadContext<Impl>::readLastSuspend()
{
return thread->lastSuspend;
}
template <class Impl>
void
O3ThreadContext<Impl>::copyArchRegs(ThreadContext *tc)
{
// Set vector renaming mode before copying registers
cpu->vecRenameMode(RenameMode<TheISA::ISA>::mode(tc->pcState()));
// Prevent squashing
thread->noSquashFromTC = true;
TheISA::copyRegs(tc, this);
thread->noSquashFromTC = false;
if (!FullSystem)
this->thread->funcExeInst = tc->readFuncExeInst();
}
template <class Impl>
void
O3ThreadContext<Impl>::clearArchRegs()
{
cpu->isa[thread->threadId()]->clear();
}
template <class Impl>
RegVal
O3ThreadContext<Impl>::readIntRegFlat(RegIndex reg_idx) const
{
return cpu->readArchIntReg(reg_idx, thread->threadId());
}
template <class Impl>
RegVal
O3ThreadContext<Impl>::readFloatRegFlat(RegIndex reg_idx) const
{
return cpu->readArchFloatReg(reg_idx, thread->threadId());
}
template <class Impl>
const TheISA::VecRegContainer&
O3ThreadContext<Impl>::readVecRegFlat(RegIndex reg_id) const
{
return cpu->readArchVecReg(reg_id, thread->threadId());
}
template <class Impl>
TheISA::VecRegContainer&
O3ThreadContext<Impl>::getWritableVecRegFlat(RegIndex reg_id)
{
return cpu->getWritableArchVecReg(reg_id, thread->threadId());
}
template <class Impl>
const TheISA::VecElem&
O3ThreadContext<Impl>::readVecElemFlat(RegIndex idx,
const ElemIndex& elemIndex) const
{
return cpu->readArchVecElem(idx, elemIndex, thread->threadId());
}
template <class Impl>
const TheISA::VecPredRegContainer&
O3ThreadContext<Impl>::readVecPredRegFlat(RegIndex reg_id) const
{
return cpu->readArchVecPredReg(reg_id, thread->threadId());
}
template <class Impl>
TheISA::VecPredRegContainer&
O3ThreadContext<Impl>::getWritableVecPredRegFlat(RegIndex reg_id)
{
return cpu->getWritableArchVecPredReg(reg_id, thread->threadId());
}
template <class Impl>
RegVal
O3ThreadContext<Impl>::readCCRegFlat(RegIndex reg_idx) const
{
return cpu->readArchCCReg(reg_idx, thread->threadId());
}
template <class Impl>
void
O3ThreadContext<Impl>::setIntRegFlat(RegIndex reg_idx, RegVal val)
{
cpu->setArchIntReg(reg_idx, val, thread->threadId());
conditionalSquash();
}
template <class Impl>
void
O3ThreadContext<Impl>::setFloatRegFlat(RegIndex reg_idx, RegVal val)
{
cpu->setArchFloatReg(reg_idx, val, thread->threadId());
conditionalSquash();
}
template <class Impl>
void
O3ThreadContext<Impl>::setVecRegFlat(
RegIndex reg_idx, const VecRegContainer& val)
{
cpu->setArchVecReg(reg_idx, val, thread->threadId());
conditionalSquash();
}
template <class Impl>
void
O3ThreadContext<Impl>::setVecElemFlat(RegIndex idx,
const ElemIndex& elemIndex, const VecElem& val)
{
cpu->setArchVecElem(idx, elemIndex, val, thread->threadId());
conditionalSquash();
}
template <class Impl>
void
O3ThreadContext<Impl>::setVecPredRegFlat(RegIndex reg_idx,
const VecPredRegContainer& val)
{
cpu->setArchVecPredReg(reg_idx, val, thread->threadId());
conditionalSquash();
}
template <class Impl>
void
O3ThreadContext<Impl>::setCCRegFlat(RegIndex reg_idx, RegVal val)
{
cpu->setArchCCReg(reg_idx, val, thread->threadId());
conditionalSquash();
}
template <class Impl>
void
O3ThreadContext<Impl>::pcState(const TheISA::PCState &val)
{
cpu->pcState(val, thread->threadId());
conditionalSquash();
}
template <class Impl>
void
O3ThreadContext<Impl>::pcStateNoRecord(const TheISA::PCState &val)
{
cpu->pcState(val, thread->threadId());
conditionalSquash();
}
template <class Impl>
RegId
O3ThreadContext<Impl>::flattenRegId(const RegId& regId) const
{
return cpu->isa[thread->threadId()]->flattenRegId(regId);
}
template <class Impl>
void
O3ThreadContext<Impl>::setMiscRegNoEffect(RegIndex misc_reg, RegVal val)
{
cpu->setMiscRegNoEffect(misc_reg, val, thread->threadId());
conditionalSquash();
}
template <class Impl>
void
O3ThreadContext<Impl>::setMiscReg(RegIndex misc_reg, RegVal val)
{
cpu->setMiscReg(misc_reg, val, thread->threadId());
conditionalSquash();
}
// hardware transactional memory
template <class Impl>
void
O3ThreadContext<Impl>::htmAbortTransaction(uint64_t htmUid,
HtmFailureFaultCause cause)
{
cpu->htmSendAbortSignal(thread->threadId(), htmUid, cause);
conditionalSquash();
}
template <class Impl>
BaseHTMCheckpointPtr&
O3ThreadContext<Impl>::getHtmCheckpointPtr()
{
return thread->htmCheckpoint;
}
template <class Impl>
void
O3ThreadContext<Impl>::setHtmCheckpointPtr(BaseHTMCheckpointPtr new_cpt)
{
thread->htmCheckpoint = std::move(new_cpt);
}
#endif //__CPU_O3_THREAD_CONTEXT_IMPL_HH__