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author | Andreas Hansson <andreas.hansson@arm.com> | 2015-04-20 12:46:35 -0400 |
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committer | Andreas Hansson <andreas.hansson@arm.com> | 2015-04-20 12:46:35 -0400 |
commit | cd76e34056afab83697beef1d1ced94ee671a20d (patch) | |
tree | 8adaa80ba72593bdf67103ad5cd0a072b95e8acb /src/cpu/inorder/pipeline_traits.9stage.cc | |
parent | 076ea249ae47b935bea424954174f33fdecb7fcc (diff) | |
download | gem5-cd76e34056afab83697beef1d1ced94ee671a20d.tar.xz |
cpu: Remove the InOrderCPU from the tree
This patch takes the final step in removing the InOrderCPU from the
tree. Rest in peace.
The MinorCPU is now used to model an in-order microarchitecture, and
long term the MinorCPU will eventually be renamed InOrderCPU.
Diffstat (limited to 'src/cpu/inorder/pipeline_traits.9stage.cc')
-rw-r--r-- | src/cpu/inorder/pipeline_traits.9stage.cc | 242 |
1 files changed, 0 insertions, 242 deletions
diff --git a/src/cpu/inorder/pipeline_traits.9stage.cc b/src/cpu/inorder/pipeline_traits.9stage.cc deleted file mode 100644 index e8ff3acd4..000000000 --- a/src/cpu/inorder/pipeline_traits.9stage.cc +++ /dev/null @@ -1,242 +0,0 @@ -/* - * Copyright (c) 2007 MIPS Technologies, Inc. - * 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: Korey Sewell - * - */ - -#include "cpu/inorder/resources/resource_list.hh" -#include "cpu/inorder/inorder_dyn_inst.hh" -#include "cpu/inorder/pipeline_traits.hh" - -using namespace std; - -namespace ThePipeline { - - -//@TODO: create my own Instruction Schedule Class -//that operates as a Priority QUEUE -int getNextPriority(DynInstPtr &inst, int stage_num) -{ - int cur_pri = 20; - - /* - std::priority_queue<ScheduleEntry*, std::vector<ScheduleEntry*>, - entryCompare>::iterator sked_it = inst->resSched.begin(); - - std::priority_queue<ScheduleEntry*, std::vector<ScheduleEntry*>, - entryCompare>::iterator sked_end = inst->resSched.end(); - - while (sked_it != sked_end) { - - if (sked_it.top()->stageNum == stage_num) { - cur_pri = sked_it.top()->priority; - } - - sked_it++; - } - */ - - return cur_pri; -} - -void createFrontEndSchedule(DynInstPtr &inst) -{ - int stNum = 0; - int stPri = 0; - // Get Pointer to Instuction's Schedule - ResSchedule *inst_sched = &inst->resSched; - - // - // Stage 0 - // --------------------------------------- - inst_sched->push(new ScheduleEntry(stNum, stPri, FetchSeq, FetchSeqUnit::AssignNextPC)); - stPri++; - - inst_sched->push(new ScheduleEntry(stNum, stPri, ITLB, TLBUnit::FetchLookup)); - stPri++; - - inst_sched->push(new ScheduleEntry(stNum, stPri, ICache, CacheUnit::InitiateFetch)); - stPri++; - - // Reset Priority / Update Next Stage Number - stNum++; - stPri = 0; - - // - // Stage 1 - // --------------------------------------- - inst_sched->push(new ScheduleEntry(stNum, stPri, ICache, CacheUnit::CompleteFetch)); - stPri++; - - inst_sched->push(new ScheduleEntry(stNum, stPri, Decode, DecodeUnit::DecodeInst)); - stPri++; - - inst_sched->push(new ScheduleEntry(stNum, stPri, BPred, BranchPredictor::PredictBranch)); - stPri++; - - inst_sched->push(new ScheduleEntry(stNum, stPri, FetchSeq, FetchSeqUnit::UpdateTargetPC)); - stPri++; - - if (inst->readTid() == 0) - inst_sched->push(new ScheduleEntry(stNum, stPri, FetchBuff, InstBuffer::ScheduleOrBypass)); - else //if (inst->readTid() == 1) - inst_sched->push(new ScheduleEntry(stNum, stPri, FetchBuff2, InstBuffer::ScheduleOrBypass)); - stPri++; - - // Reset Priority / Update Next Stage Number - stNum++; - stPri = 0; - - // - // Stage 2 - // --------------------------------------- - // Reset Priority / Update Next Stage Number - stNum++; - stPri = 0; -} - -bool createBackEndSchedule(DynInstPtr &inst) -{ - if (!inst->staticInst) { - return false; - } - - std::string name = inst->staticInst->getName(); - - int stNum = BackEndStartStage; - int stPri = 0; - - // Get Pointer to Instuction's Schedule - ResSchedule *inst_sched = &inst->resSched; - - // - // Stage 3 - // --------------------------------------- - // Set When Source Registers Should be read - Stage 4 - for (int idx=0; idx < inst->numSrcRegs(); idx++) { - inst_sched->push(new ScheduleEntry(stNum, stPri, RegManager, UseDefUnit::ReadSrcReg, idx)); - } - stPri++; - - // Reset Priority / Update Next Stage Number - stPri = 0; - stNum++; - - // - // Stage 4 - // --------------------------------------- - if (inst->isMemRef()) { - inst_sched->push(new ScheduleEntry(stNum, stPri, AGEN, AGENUnit::GenerateAddr)); - } - - // Reset Priority / Update Next Stage Number - stPri = 0; - stNum++; - - // - // Stage 5 - // --------------------------------------- - // Execution Unit - if (!inst->isNonSpeculative() && !inst->isMemRef()) { - if (inst->opClass() == IntMultOp || inst->opClass() == IntDivOp) { - inst_sched->push(new ScheduleEntry(stNum, stPri++, MDU, MultDivUnit::MultDiv)); - } else { - inst_sched->push(new ScheduleEntry(stNum, stPri, ExecUnit, ExecutionUnit::ExecuteInst)); - } - } - stPri++; - - // DCache Initiate Access - if (inst->isMemRef()) { - inst_sched->push(new ScheduleEntry(stNum, stPri, DTLB, TLBUnit::DataLookup)); - stPri++; - - if (inst->isLoad()) { - inst_sched->push(new ScheduleEntry(stNum, stPri, DCache, CacheUnit::InitiateReadData)); - } else if (inst->isStore()) { - inst_sched->push(new ScheduleEntry(stNum, stPri, DCache, CacheUnit::InitiateWriteData)); - } - } - - // Reset Priority / Update Next Stage Number - stPri = 0; - stNum++; - - // - // Stage 6 - // --------------------------------------- - // DCache Complete Access - if (inst->isMemRef()) { - if (inst->isLoad()) { - inst_sched->push(new ScheduleEntry(stNum, stPri, DCache, CacheUnit::CompleteReadData)); - } else if (inst->isStore()) { - inst_sched->push(new ScheduleEntry(stNum, stPri, DCache, CacheUnit::CompleteWriteData)); - } - } - - // Reset Priority / Update Next Stage Number - stPri = 0; - stNum++; - - // - // Stage 7 - // --------------------------------------- - // Reset Priority / Update Next Stage Number - stPri = 0; - stNum++; - - // - // Stage 8 - // --------------------------------------- - // NonSpeculative Execution - if (inst->isNonSpeculative() ) { - if (inst->isMemRef()) - fatal("Schedule doesnt handle Non-Speculative Memory Instructions.\n"); - - inst_sched->push(new ScheduleEntry(stNum, stPri, ExecUnit, ExecutionUnit::ExecuteInst)); - stPri++; - } - - // Write Back to Register File - for (int idx=0; idx < inst->numDestRegs(); idx++) { - inst_sched->push(new ScheduleEntry(stNum, stPri, RegManager, UseDefUnit::WriteDestReg, idx)); - stPri++; - } - - // Graduate Instructions - inst_sched->push(new ScheduleEntry(stNum, stPri, Grad, GraduationUnit::GraduateInst)); - stPri++; - - // Reset Priority / Update Next Stage Number - stPri = 0; - stNum++; - - return true; -} - -}; |