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/*
* Copyright (c) 2011-2012, 2016 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) 2006 The Regents of The University of Michigan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* 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;
* redistributions in binary form must reproduce the above copyright
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Authors: Kevin Lim
*/
#ifndef __CPU_CHECKER_THREAD_CONTEXT_HH__
#define __CPU_CHECKER_THREAD_CONTEXT_HH__
#include "arch/types.hh"
#include "config/the_isa.hh"
#include "cpu/checker/cpu.hh"
#include "cpu/simple_thread.hh"
#include "cpu/thread_context.hh"
#include "debug/Checker.hh"
class EndQuiesceEvent;
namespace TheISA {
namespace Kernel {
class Statistics;
};
class Decoder;
};
/**
* Derived ThreadContext class for use with the Checker. The template
* parameter is the ThreadContext class used by the specific CPU being
* verified. This CheckerThreadContext is then used by the main CPU
* in place of its usual ThreadContext class. It handles updating the
* checker's state any time state is updated externally through the
* ThreadContext.
*/
template <class TC>
class CheckerThreadContext : public ThreadContext
{
public:
CheckerThreadContext(TC *actual_tc,
CheckerCPU *checker_cpu)
: actualTC(actual_tc), checkerTC(checker_cpu->thread),
checkerCPU(checker_cpu)
{ }
private:
/** The main CPU's ThreadContext, or class that implements the
* ThreadContext interface. */
TC *actualTC;
/** The checker's own SimpleThread. Will be updated any time
* anything uses this ThreadContext to externally update a
* thread's state. */
SimpleThread *checkerTC;
/** Pointer to the checker CPU. */
CheckerCPU *checkerCPU;
public:
BaseCPU *getCpuPtr() { return actualTC->getCpuPtr(); }
uint32_t socketId() const { return actualTC->socketId(); }
int cpuId() const { return actualTC->cpuId(); }
ContextID contextId() const { return actualTC->contextId(); }
void setContextId(ContextID id)
{
actualTC->setContextId(id);
checkerTC->setContextId(id);
}
/** Returns this thread's ID number. */
int threadId() const { return actualTC->threadId(); }
void setThreadId(int id)
{
checkerTC->setThreadId(id);
actualTC->setThreadId(id);
}
BaseTLB *getITBPtr() { return actualTC->getITBPtr(); }
BaseTLB *getDTBPtr() { return actualTC->getDTBPtr(); }
CheckerCPU *getCheckerCpuPtr()
{
return checkerCPU;
}
TheISA::Decoder *getDecoderPtr() { return actualTC->getDecoderPtr(); }
System *getSystemPtr() { return actualTC->getSystemPtr(); }
TheISA::Kernel::Statistics *getKernelStats()
{ return actualTC->getKernelStats(); }
Process *getProcessPtr() { return actualTC->getProcessPtr(); }
void setProcessPtr(Process *p) { actualTC->setProcessPtr(p); }
PortProxy &getPhysProxy() { return actualTC->getPhysProxy(); }
FSTranslatingPortProxy &getVirtProxy()
{ return actualTC->getVirtProxy(); }
void initMemProxies(ThreadContext *tc)
{ actualTC->initMemProxies(tc); }
void connectMemPorts(ThreadContext *tc)
{
actualTC->connectMemPorts(tc);
}
SETranslatingPortProxy &getMemProxy() { return actualTC->getMemProxy(); }
/** Executes a syscall in SE mode. */
void syscall(int64_t callnum, Fault *fault)
{ return actualTC->syscall(callnum, fault); }
Status status() const { return actualTC->status(); }
void setStatus(Status new_status)
{
actualTC->setStatus(new_status);
checkerTC->setStatus(new_status);
}
/// Set the status to Active.
void activate() { actualTC->activate(); }
/// Set the status to Suspended.
void suspend() { actualTC->suspend(); }
/// Set the status to Halted.
void halt() { actualTC->halt(); }
void dumpFuncProfile() { actualTC->dumpFuncProfile(); }
void takeOverFrom(ThreadContext *oldContext)
{
actualTC->takeOverFrom(oldContext);
checkerTC->copyState(oldContext);
}
void regStats(const std::string &name)
{
actualTC->regStats(name);
checkerTC->regStats(name);
}
EndQuiesceEvent *getQuiesceEvent() { return actualTC->getQuiesceEvent(); }
Tick readLastActivate() { return actualTC->readLastActivate(); }
Tick readLastSuspend() { return actualTC->readLastSuspend(); }
void profileClear() { return actualTC->profileClear(); }
void profileSample() { return actualTC->profileSample(); }
// @todo: Do I need this?
void copyArchRegs(ThreadContext *tc)
{
actualTC->copyArchRegs(tc);
checkerTC->copyArchRegs(tc);
}
void clearArchRegs()
{
actualTC->clearArchRegs();
checkerTC->clearArchRegs();
}
//
// New accessors for new decoder.
//
uint64_t readIntReg(int reg_idx)
{ return actualTC->readIntReg(reg_idx); }
FloatRegBits readFloatRegBits(int reg_idx)
{ return actualTC->readFloatRegBits(reg_idx); }
const VecRegContainer& readVecReg(const RegId& reg) const
{ return actualTC->readVecReg(reg); }
/**
* Read vector register for modification, hierarchical indexing.
*/
VecRegContainer& getWritableVecReg(const RegId& reg)
{ return actualTC->getWritableVecReg(reg); }
/** Vector Register Lane Interfaces. */
/** @{ */
/** Reads source vector 8bit operand. */
ConstVecLane8
readVec8BitLaneReg(const RegId& reg) const
{ return actualTC->readVec8BitLaneReg(reg); }
/** Reads source vector 16bit operand. */
ConstVecLane16
readVec16BitLaneReg(const RegId& reg) const
{ return actualTC->readVec16BitLaneReg(reg); }
/** Reads source vector 32bit operand. */
ConstVecLane32
readVec32BitLaneReg(const RegId& reg) const
{ return actualTC->readVec32BitLaneReg(reg); }
/** Reads source vector 64bit operand. */
ConstVecLane64
readVec64BitLaneReg(const RegId& reg) const
{ return actualTC->readVec64BitLaneReg(reg); }
/** Write a lane of the destination vector register. */
virtual void setVecLane(const RegId& reg,
const LaneData<LaneSize::Byte>& val)
{ return actualTC->setVecLane(reg, val); }
virtual void setVecLane(const RegId& reg,
const LaneData<LaneSize::TwoByte>& val)
{ return actualTC->setVecLane(reg, val); }
virtual void setVecLane(const RegId& reg,
const LaneData<LaneSize::FourByte>& val)
{ return actualTC->setVecLane(reg, val); }
virtual void setVecLane(const RegId& reg,
const LaneData<LaneSize::EightByte>& val)
{ return actualTC->setVecLane(reg, val); }
/** @} */
const VecElem& readVecElem(const RegId& reg) const
{ return actualTC->readVecElem(reg); }
CCReg readCCReg(int reg_idx)
{ return actualTC->readCCReg(reg_idx); }
void setIntReg(int reg_idx, uint64_t val)
{
actualTC->setIntReg(reg_idx, val);
checkerTC->setIntReg(reg_idx, val);
}
void setFloatRegBits(int reg_idx, FloatRegBits val)
{
actualTC->setFloatRegBits(reg_idx, val);
checkerTC->setFloatRegBits(reg_idx, val);
}
void setVecReg(const RegId& reg, const VecRegContainer& val)
{
actualTC->setVecReg(reg, val);
checkerTC->setVecReg(reg, val);
}
void setVecElem(const RegId& reg, const VecElem& val)
{
actualTC->setVecElem(reg, val);
checkerTC->setVecElem(reg, val);
}
void setCCReg(int reg_idx, CCReg val)
{
actualTC->setCCReg(reg_idx, val);
checkerTC->setCCReg(reg_idx, val);
}
/** Reads this thread's PC state. */
TheISA::PCState pcState()
{ return actualTC->pcState(); }
/** Sets this thread's PC state. */
void pcState(const TheISA::PCState &val)
{
DPRINTF(Checker, "Changing PC to %s, old PC %s\n",
val, checkerTC->pcState());
checkerTC->pcState(val);
checkerCPU->recordPCChange(val);
return actualTC->pcState(val);
}
void setNPC(Addr val)
{
checkerTC->setNPC(val);
actualTC->setNPC(val);
}
void pcStateNoRecord(const TheISA::PCState &val)
{
return actualTC->pcState(val);
}
/** Reads this thread's PC. */
Addr instAddr()
{ return actualTC->instAddr(); }
/** Reads this thread's next PC. */
Addr nextInstAddr()
{ return actualTC->nextInstAddr(); }
/** Reads this thread's next PC. */
MicroPC microPC()
{ return actualTC->microPC(); }
MiscReg readMiscRegNoEffect(int misc_reg) const
{ return actualTC->readMiscRegNoEffect(misc_reg); }
MiscReg readMiscReg(int misc_reg)
{ return actualTC->readMiscReg(misc_reg); }
void setMiscRegNoEffect(int misc_reg, const MiscReg &val)
{
DPRINTF(Checker, "Setting misc reg with no effect: %d to both Checker"
" and O3..\n", misc_reg);
checkerTC->setMiscRegNoEffect(misc_reg, val);
actualTC->setMiscRegNoEffect(misc_reg, val);
}
void setMiscReg(int misc_reg, const MiscReg &val)
{
DPRINTF(Checker, "Setting misc reg with effect: %d to both Checker"
" and O3..\n", misc_reg);
checkerTC->setMiscReg(misc_reg, val);
actualTC->setMiscReg(misc_reg, val);
}
RegId flattenRegId(const RegId& regId) const {
return actualTC->flattenRegId(regId);
}
unsigned readStCondFailures()
{ return actualTC->readStCondFailures(); }
void setStCondFailures(unsigned sc_failures)
{
actualTC->setStCondFailures(sc_failures);
}
Counter readFuncExeInst() { return actualTC->readFuncExeInst(); }
uint64_t readIntRegFlat(int idx)
{ return actualTC->readIntRegFlat(idx); }
void setIntRegFlat(int idx, uint64_t val)
{ actualTC->setIntRegFlat(idx, val); }
FloatRegBits readFloatRegBitsFlat(int idx)
{ return actualTC->readFloatRegBitsFlat(idx); }
void setFloatRegBitsFlat(int idx, FloatRegBits val)
{ actualTC->setFloatRegBitsFlat(idx, val); }
const VecRegContainer& readVecRegFlat(int idx) const
{ return actualTC->readVecRegFlat(idx); }
/**
* Read vector register for modification, flat indexing.
*/
VecRegContainer& getWritableVecRegFlat(int idx)
{ return actualTC->getWritableVecRegFlat(idx); }
void setVecRegFlat(int idx, const VecRegContainer& val)
{ actualTC->setVecRegFlat(idx, val); }
const VecElem& readVecElemFlat(const RegIndex& idx,
const ElemIndex& elem_idx) const
{ return actualTC->readVecElemFlat(idx, elem_idx); }
void setVecElemFlat(const RegIndex& idx,
const ElemIndex& elem_idx, const VecElem& val)
{ actualTC->setVecElemFlat(idx, elem_idx, val); }
CCReg readCCRegFlat(int idx)
{ return actualTC->readCCRegFlat(idx); }
void setCCRegFlat(int idx, CCReg val)
{ actualTC->setCCRegFlat(idx, val); }
};
#endif // __CPU_CHECKER_EXEC_CONTEXT_HH__