810dcca1d1
kern/kernel_stats.cc:
Serialize idleProcess.
kern/system_events.cc:
Remove the idle start event once it runs.
--HG--
extra : convert_revision : 05ac574558a88b86ccfce963e4ca9b037a1a8509
88 lines
2.9 KiB
C++
88 lines
2.9 KiB
C++
/*
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* Copyright (c) 2004 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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#include "cpu/exec_context.hh"
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#include "cpu/base_cpu.hh"
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#include "cpu/full_cpu/bpred.hh"
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#include "cpu/full_cpu/full_cpu.hh"
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#include "kern/kernel_stats.hh"
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#include "kern/system_events.hh"
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#include "sim/system.hh"
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void
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SkipFuncEvent::process(ExecContext *xc)
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{
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Addr newpc = xc->regs.intRegFile[ReturnAddressReg];
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DPRINTF(PCEvent, "skipping %s: pc=%x, newpc=%x\n", description,
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xc->regs.pc, newpc);
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xc->regs.pc = newpc;
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xc->regs.npc = xc->regs.pc + sizeof(MachInst);
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BranchPred *bp = xc->cpu->getBranchPred();
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if (bp != NULL) {
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bp->popRAS(xc->thread_num);
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}
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}
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FnEvent::FnEvent(PCEventQueue *q, const std::string &desc, Stats::MainBin *bin)
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: PCEvent(q, desc), _name(desc), mybin(bin)
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{
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}
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void
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FnEvent::process(ExecContext *xc)
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{
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if (xc->misspeculating())
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return;
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xc->system->kernelBinning->call(xc, mybin);
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}
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void
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IdleStartEvent::process(ExecContext *xc)
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{
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xc->kernelStats->setIdleProcess(xc->regs.ipr[AlphaISA::IPR_PALtemp23]);
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remove();
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}
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void
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InterruptStartEvent::process(ExecContext *xc)
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{
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xc->kernelStats->mode(Kernel::interrupt);
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}
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void
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InterruptEndEvent::process(ExecContext *xc)
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{
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// We go back to kernel, if we are user, inside the rti
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// pal code we will get switched to user because of the ICM write
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xc->kernelStats->mode(Kernel::kernel);
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}
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