2006-07-01 01:52:08 +02:00
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/*
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* Copyright (c) 2004-2006 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Authors: Kevin Lim
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* Korey Sewell
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*/
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2006-12-06 12:00:04 +01:00
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#include "arch/regfile.hh"
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2006-07-01 01:52:08 +02:00
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#include "cpu/o3/thread_context.hh"
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2006-07-03 18:19:35 +02:00
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#include "cpu/quiesce_event.hh"
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2006-07-01 01:52:08 +02:00
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#if FULL_SYSTEM
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template <class Impl>
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VirtualPort *
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O3ThreadContext<Impl>::getVirtPort(ThreadContext *src_tc)
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{
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if (!src_tc)
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return thread->getVirtPort();
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VirtualPort *vp;
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vp = new VirtualPort("tc-vport", src_tc);
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2006-11-19 23:43:03 +01:00
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thread->connectToMemFunc(vp);
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2006-07-01 01:52:08 +02:00
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return vp;
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}
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template <class Impl>
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void
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O3ThreadContext<Impl>::dumpFuncProfile()
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{
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2006-10-02 17:58:09 +02:00
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thread->dumpFuncProfile();
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2006-07-01 01:52:08 +02:00
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}
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#endif
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template <class Impl>
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void
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O3ThreadContext<Impl>::takeOverFrom(ThreadContext *old_context)
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{
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// some things should already be set up
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#if FULL_SYSTEM
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assert(getSystemPtr() == old_context->getSystemPtr());
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#else
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assert(getProcessPtr() == old_context->getProcessPtr());
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#endif
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// copy over functional state
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setStatus(old_context->status());
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copyArchRegs(old_context);
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setCpuId(old_context->readCpuId());
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#if !FULL_SYSTEM
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thread->funcExeInst = old_context->readFuncExeInst();
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#else
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EndQuiesceEvent *other_quiesce = old_context->getQuiesceEvent();
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if (other_quiesce) {
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// Point the quiesce event's TC at this TC so that it wakes up
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// the proper CPU.
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other_quiesce->tc = this;
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}
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if (thread->quiesceEvent) {
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thread->quiesceEvent->tc = this;
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}
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// Transfer kernel stats from one CPU to the other.
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thread->kernelStats = old_context->getKernelStats();
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// storeCondFailures = 0;
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cpu->lockFlag = false;
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#endif
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old_context->setStatus(ThreadContext::Unallocated);
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thread->inSyscall = false;
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thread->trapPending = false;
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}
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#if FULL_SYSTEM
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template <class Impl>
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void
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O3ThreadContext<Impl>::delVirtPort(VirtualPort *vp)
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{
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2006-11-29 22:07:55 +01:00
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if (vp != thread->getVirtPort()) {
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2007-03-13 22:34:52 +01:00
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vp->removeConn();
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2006-11-29 22:07:55 +01:00
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delete vp;
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}
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2006-07-01 01:52:08 +02:00
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}
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#endif
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template <class Impl>
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void
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O3ThreadContext<Impl>::activate(int delay)
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{
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2006-07-07 10:06:26 +02:00
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DPRINTF(O3CPU, "Calling activate on Thread Context %d\n",
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getThreadNum());
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2006-07-01 01:52:08 +02:00
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if (thread->status() == ThreadContext::Active)
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return;
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#if FULL_SYSTEM
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thread->lastActivate = curTick;
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#endif
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if (thread->status() == ThreadContext::Unallocated) {
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cpu->activateWhenReady(thread->readTid());
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return;
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}
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thread->setStatus(ThreadContext::Active);
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// status() == Suspended
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cpu->activateContext(thread->readTid(), delay);
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}
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template <class Impl>
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void
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O3ThreadContext<Impl>::suspend()
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{
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2006-07-07 10:06:26 +02:00
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DPRINTF(O3CPU, "Calling suspend on Thread Context %d\n",
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getThreadNum());
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2006-07-01 01:52:08 +02:00
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if (thread->status() == ThreadContext::Suspended)
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return;
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#if FULL_SYSTEM
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thread->lastActivate = curTick;
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thread->lastSuspend = curTick;
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#endif
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/*
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#if FULL_SYSTEM
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// Don't change the status from active if there are pending interrupts
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if (cpu->check_interrupts()) {
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assert(status() == ThreadContext::Active);
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return;
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}
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#endif
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*/
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thread->setStatus(ThreadContext::Suspended);
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cpu->suspendContext(thread->readTid());
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}
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template <class Impl>
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void
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2006-07-07 10:06:26 +02:00
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O3ThreadContext<Impl>::deallocate(int delay)
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2006-07-01 01:52:08 +02:00
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{
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2006-10-08 06:53:41 +02:00
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DPRINTF(O3CPU, "Calling deallocate on Thread Context %d delay %d\n",
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getThreadNum(), delay);
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2006-07-01 01:52:08 +02:00
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if (thread->status() == ThreadContext::Unallocated)
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return;
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thread->setStatus(ThreadContext::Unallocated);
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2006-10-08 06:53:41 +02:00
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cpu->deallocateContext(thread->readTid(), true, delay);
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2006-07-01 01:52:08 +02:00
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}
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template <class Impl>
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void
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O3ThreadContext<Impl>::halt()
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{
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2006-07-07 10:06:26 +02:00
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DPRINTF(O3CPU, "Calling halt on Thread Context %d\n",
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getThreadNum());
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2006-07-01 01:52:08 +02:00
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if (thread->status() == ThreadContext::Halted)
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return;
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thread->setStatus(ThreadContext::Halted);
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cpu->haltContext(thread->readTid());
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}
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template <class Impl>
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void
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O3ThreadContext<Impl>::regStats(const std::string &name)
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{
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#if FULL_SYSTEM
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2006-11-07 11:36:54 +01:00
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thread->kernelStats = new TheISA::Kernel::Statistics(cpu->system);
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2006-07-01 01:52:08 +02:00
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thread->kernelStats->regStats(name + ".kern");
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#endif
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}
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template <class Impl>
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void
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O3ThreadContext<Impl>::serialize(std::ostream &os)
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{
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#if FULL_SYSTEM
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if (thread->kernelStats)
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thread->kernelStats->serialize(os);
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#endif
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}
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template <class Impl>
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void
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O3ThreadContext<Impl>::unserialize(Checkpoint *cp, const std::string §ion)
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{
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#if FULL_SYSTEM
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if (thread->kernelStats)
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thread->kernelStats->unserialize(cp, section);
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#endif
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}
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#if FULL_SYSTEM
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template <class Impl>
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Tick
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O3ThreadContext<Impl>::readLastActivate()
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{
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return thread->lastActivate;
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}
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template <class Impl>
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Tick
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O3ThreadContext<Impl>::readLastSuspend()
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{
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return thread->lastSuspend;
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}
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template <class Impl>
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void
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O3ThreadContext<Impl>::profileClear()
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2006-10-02 17:58:09 +02:00
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{
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thread->profileClear();
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}
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2006-07-01 01:52:08 +02:00
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template <class Impl>
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void
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O3ThreadContext<Impl>::profileSample()
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2006-10-02 17:58:09 +02:00
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{
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thread->profileSample();
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}
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2006-07-01 01:52:08 +02:00
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#endif
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template <class Impl>
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TheISA::MachInst
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O3ThreadContext<Impl>:: getInst()
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{
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return thread->getInst();
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}
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template <class Impl>
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void
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O3ThreadContext<Impl>::copyArchRegs(ThreadContext *tc)
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{
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// This function will mess things up unless the ROB is empty and
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// there are no instructions in the pipeline.
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unsigned tid = thread->readTid();
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PhysRegIndex renamed_reg;
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// First loop through the integer registers.
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for (int i = 0; i < TheISA::NumIntRegs; ++i) {
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renamed_reg = cpu->renameMap[tid].lookup(i);
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DPRINTF(O3CPU, "Copying over register %i, had data %lli, "
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"now has data %lli.\n",
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renamed_reg, cpu->readIntReg(renamed_reg),
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tc->readIntReg(i));
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cpu->setIntReg(renamed_reg, tc->readIntReg(i));
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}
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// Then loop through the floating point registers.
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for (int i = 0; i < TheISA::NumFloatRegs; ++i) {
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renamed_reg = cpu->renameMap[tid].lookup(i + TheISA::FP_Base_DepTag);
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cpu->setFloatRegBits(renamed_reg,
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tc->readFloatRegBits(i));
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}
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// Copy the misc regs.
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2006-08-15 11:49:52 +02:00
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TheISA::copyMiscRegs(tc, this);
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2006-07-01 01:52:08 +02:00
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// Then finally set the PC and the next PC.
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cpu->setPC(tc->readPC(), tid);
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cpu->setNextPC(tc->readNextPC(), tid);
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#if !FULL_SYSTEM
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this->thread->funcExeInst = tc->readFuncExeInst();
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#endif
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}
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template <class Impl>
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void
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O3ThreadContext<Impl>::clearArchRegs()
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{}
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template <class Impl>
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uint64_t
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O3ThreadContext<Impl>::readIntReg(int reg_idx)
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{
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2006-12-06 12:00:04 +01:00
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reg_idx = TheISA::flattenIntIndex(this, reg_idx);
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2006-07-01 01:52:08 +02:00
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return cpu->readArchIntReg(reg_idx, thread->readTid());
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}
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template <class Impl>
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2006-08-15 11:49:52 +02:00
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TheISA::FloatReg
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2006-07-01 01:52:08 +02:00
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O3ThreadContext<Impl>::readFloatReg(int reg_idx, int width)
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{
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switch(width) {
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case 32:
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return cpu->readArchFloatRegSingle(reg_idx, thread->readTid());
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case 64:
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return cpu->readArchFloatRegDouble(reg_idx, thread->readTid());
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default:
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panic("Unsupported width!");
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return 0;
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}
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}
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template <class Impl>
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2006-08-15 11:49:52 +02:00
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TheISA::FloatReg
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2006-07-01 01:52:08 +02:00
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O3ThreadContext<Impl>::readFloatReg(int reg_idx)
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{
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return cpu->readArchFloatRegSingle(reg_idx, thread->readTid());
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}
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template <class Impl>
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2006-08-15 11:49:52 +02:00
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TheISA::FloatRegBits
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2006-07-01 01:52:08 +02:00
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O3ThreadContext<Impl>::readFloatRegBits(int reg_idx, int width)
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{
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DPRINTF(Fault, "Reading floatint register through the TC!\n");
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return cpu->readArchFloatRegInt(reg_idx, thread->readTid());
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}
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template <class Impl>
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2006-08-15 11:49:52 +02:00
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TheISA::FloatRegBits
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2006-07-01 01:52:08 +02:00
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O3ThreadContext<Impl>::readFloatRegBits(int reg_idx)
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{
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return cpu->readArchFloatRegInt(reg_idx, thread->readTid());
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}
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template <class Impl>
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void
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O3ThreadContext<Impl>::setIntReg(int reg_idx, uint64_t val)
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{
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2006-12-06 12:00:04 +01:00
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reg_idx = TheISA::flattenIntIndex(this, reg_idx);
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2006-07-01 01:52:08 +02:00
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cpu->setArchIntReg(reg_idx, val, thread->readTid());
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// Squash if we're not already in a state update mode.
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if (!thread->trapPending && !thread->inSyscall) {
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cpu->squashFromTC(thread->readTid());
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}
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}
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template <class Impl>
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void
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O3ThreadContext<Impl>::setFloatReg(int reg_idx, FloatReg val, int width)
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{
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switch(width) {
|
|
|
|
case 32:
|
|
|
|
cpu->setArchFloatRegSingle(reg_idx, val, thread->readTid());
|
|
|
|
break;
|
|
|
|
case 64:
|
|
|
|
cpu->setArchFloatRegDouble(reg_idx, val, thread->readTid());
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Squash if we're not already in a state update mode.
|
|
|
|
if (!thread->trapPending && !thread->inSyscall) {
|
|
|
|
cpu->squashFromTC(thread->readTid());
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
template <class Impl>
|
|
|
|
void
|
|
|
|
O3ThreadContext<Impl>::setFloatReg(int reg_idx, FloatReg val)
|
|
|
|
{
|
|
|
|
cpu->setArchFloatRegSingle(reg_idx, val, thread->readTid());
|
|
|
|
|
|
|
|
if (!thread->trapPending && !thread->inSyscall) {
|
|
|
|
cpu->squashFromTC(thread->readTid());
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
template <class Impl>
|
|
|
|
void
|
|
|
|
O3ThreadContext<Impl>::setFloatRegBits(int reg_idx, FloatRegBits val,
|
|
|
|
int width)
|
|
|
|
{
|
|
|
|
DPRINTF(Fault, "Setting floatint register through the TC!\n");
|
|
|
|
cpu->setArchFloatRegInt(reg_idx, val, thread->readTid());
|
|
|
|
|
|
|
|
// Squash if we're not already in a state update mode.
|
|
|
|
if (!thread->trapPending && !thread->inSyscall) {
|
|
|
|
cpu->squashFromTC(thread->readTid());
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
template <class Impl>
|
|
|
|
void
|
|
|
|
O3ThreadContext<Impl>::setFloatRegBits(int reg_idx, FloatRegBits val)
|
|
|
|
{
|
|
|
|
cpu->setArchFloatRegInt(reg_idx, val, thread->readTid());
|
|
|
|
|
|
|
|
// Squash if we're not already in a state update mode.
|
|
|
|
if (!thread->trapPending && !thread->inSyscall) {
|
|
|
|
cpu->squashFromTC(thread->readTid());
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
template <class Impl>
|
|
|
|
void
|
|
|
|
O3ThreadContext<Impl>::setPC(uint64_t val)
|
|
|
|
{
|
|
|
|
cpu->setPC(val, thread->readTid());
|
|
|
|
|
|
|
|
// Squash if we're not already in a state update mode.
|
|
|
|
if (!thread->trapPending && !thread->inSyscall) {
|
|
|
|
cpu->squashFromTC(thread->readTid());
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
template <class Impl>
|
|
|
|
void
|
|
|
|
O3ThreadContext<Impl>::setNextPC(uint64_t val)
|
|
|
|
{
|
|
|
|
cpu->setNextPC(val, thread->readTid());
|
|
|
|
|
|
|
|
// Squash if we're not already in a state update mode.
|
|
|
|
if (!thread->trapPending && !thread->inSyscall) {
|
|
|
|
cpu->squashFromTC(thread->readTid());
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
template <class Impl>
|
2006-11-01 22:44:45 +01:00
|
|
|
void
|
2007-03-07 21:04:31 +01:00
|
|
|
O3ThreadContext<Impl>::setMiscRegNoEffect(int misc_reg, const MiscReg &val)
|
2006-07-01 01:52:08 +02:00
|
|
|
{
|
2007-03-07 21:04:31 +01:00
|
|
|
cpu->setMiscRegNoEffect(misc_reg, val, thread->readTid());
|
2006-07-01 01:52:08 +02:00
|
|
|
|
|
|
|
// Squash if we're not already in a state update mode.
|
|
|
|
if (!thread->trapPending && !thread->inSyscall) {
|
|
|
|
cpu->squashFromTC(thread->readTid());
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
template <class Impl>
|
2006-11-01 22:44:45 +01:00
|
|
|
void
|
2007-03-07 21:04:31 +01:00
|
|
|
O3ThreadContext<Impl>::setMiscReg(int misc_reg,
|
2006-07-01 01:52:08 +02:00
|
|
|
const MiscReg &val)
|
|
|
|
{
|
2007-03-07 21:04:31 +01:00
|
|
|
cpu->setMiscReg(misc_reg, val, thread->readTid());
|
2006-07-01 01:52:08 +02:00
|
|
|
|
|
|
|
// Squash if we're not already in a state update mode.
|
|
|
|
if (!thread->trapPending && !thread->inSyscall) {
|
|
|
|
cpu->squashFromTC(thread->readTid());
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
#if !FULL_SYSTEM
|
|
|
|
|
|
|
|
template <class Impl>
|
|
|
|
TheISA::IntReg
|
|
|
|
O3ThreadContext<Impl>::getSyscallArg(int i)
|
|
|
|
{
|
|
|
|
return cpu->getSyscallArg(i, thread->readTid());
|
|
|
|
}
|
|
|
|
|
|
|
|
template <class Impl>
|
|
|
|
void
|
|
|
|
O3ThreadContext<Impl>::setSyscallArg(int i, IntReg val)
|
|
|
|
{
|
|
|
|
cpu->setSyscallArg(i, val, thread->readTid());
|
|
|
|
}
|
|
|
|
|
|
|
|
template <class Impl>
|
|
|
|
void
|
|
|
|
O3ThreadContext<Impl>::setSyscallReturn(SyscallReturn return_value)
|
|
|
|
{
|
|
|
|
cpu->setSyscallReturn(return_value, thread->readTid());
|
|
|
|
}
|
|
|
|
|
|
|
|
#endif // FULL_SYSTEM
|
|
|
|
|