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authorAndreas Hansson <andreas.hansson@arm.com>2015-04-20 12:46:35 -0400
committerAndreas Hansson <andreas.hansson@arm.com>2015-04-20 12:46:35 -0400
commitcd76e34056afab83697beef1d1ced94ee671a20d (patch)
tree8adaa80ba72593bdf67103ad5cd0a072b95e8acb /src/cpu/inorder/resource_pool.hh
parent076ea249ae47b935bea424954174f33fdecb7fcc (diff)
downloadgem5-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/resource_pool.hh')
-rw-r--r--src/cpu/inorder/resource_pool.hh250
1 files changed, 0 insertions, 250 deletions
diff --git a/src/cpu/inorder/resource_pool.hh b/src/cpu/inorder/resource_pool.hh
deleted file mode 100644
index 9e3198e1e..000000000
--- a/src/cpu/inorder/resource_pool.hh
+++ /dev/null
@@ -1,250 +0,0 @@
-/*
- * Copyright (c) 2012 ARM Limited
- * 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) 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
- *
- */
-
-#ifndef __CPU_INORDER_RESOURCE_POOL_HH__
-#define __CPU_INORDER_RESOURCE_POOL_HH__
-
-#include <string>
-#include <vector>
-
-#include "cpu/inorder/cpu.hh"
-#include "cpu/inorder/inorder_dyn_inst.hh"
-#include "cpu/inorder/pipeline_traits.hh"
-#include "cpu/inorder/resource.hh"
-#include "cpu/inst_seq.hh"
-#include "params/InOrderCPU.hh"
-#include "sim/eventq.hh"
-#include "sim/sim_object.hh"
-
-class CacheUnit;
-class Event;
-class FetchUnit;
-class ResourceEvent;
-
-class ResourcePool {
- public:
- typedef InOrderDynInst::DynInstPtr DynInstPtr;
-
- public:
- // List of Resource Pool Events that extends
- // the list started by the CPU
- // NOTE(1): Resource Pool also uses event list
- // CPUEventType defined in inorder/cpu.hh
- enum ResPoolEventType {
- InstGraduated = InOrderCPU::NumCPUEvents,
- SquashAll,
- UpdateAfterContextSwitch,
- Default
- };
-
- enum ResPoolEventPri {
- ResPool_Pri = InOrderCPU::InOrderCPU_Pri - 5,
- ResGrad_Pri,
- ResSquash_Pri
- };
-
- class ResPoolEvent : public Event
- {
- protected:
- /** Resource Pool */
- ResourcePool *resPool;
-
- public:
- InOrderCPU::CPUEventType eventType;
-
- DynInstPtr inst;
-
- InstSeqNum seqNum;
-
- int stageNum;
-
- ThreadID tid;
-
- public:
- /** Constructs a resource event. */
- ResPoolEvent(ResourcePool *_resPool,
- InOrderCPU::CPUEventType e_type,
- DynInstPtr _inst,
- int stage_num,
- InstSeqNum seq_num,
- ThreadID _tid,
- ResPoolEventPri res_pri = ResPool_Pri);
-
- /** Set Type of Event To Be Scheduled */
- void setEvent(InOrderCPU::CPUEventType e_type,
- DynInstPtr _inst,
- int stage_num,
- InstSeqNum seq_num,
- ThreadID _tid)
- {
- eventType = e_type;
- inst = _inst;
- seqNum = seq_num;
- stageNum = stage_num;
- tid = _tid;
- }
-
- /** Processes a resource event. */
- void process();
-
- /** Returns the description of the resource event. */
- const char *description() const;
-
- /** Schedule Event */
- void scheduleEvent(Cycles delay);
-
- /** Unschedule This Event */
- void unscheduleEvent();
- };
-
- public:
- ResourcePool(InOrderCPU *_cpu, ThePipeline::Params *params);
- virtual ~ResourcePool();
-
- std::string name();
-
- std::string name(int res_idx) { return resources[res_idx]->name(); }
-
- void init();
-
- void print();
-
- /** Register Statistics in All Resources */
- void regStats();
-
- /** Returns a specific resource. */
- unsigned getResIdx(const ThePipeline::ResourceId &res_id);
-
- /** Returns a pointer to a resource */
- Resource* getResource(int res_idx) { return resources[res_idx]; }
-
- /** Request usage of this resource. Returns -1 if not granted and
- * a positive request tag if granted.
- */
- ResReqPtr request(int res_idx, DynInstPtr inst);
-
- /** Squash The Resource */
- void squash(DynInstPtr inst, int res_idx, InstSeqNum done_seq_num,
- ThreadID tid);
-
- /** Squash All Resources in Pool after Done Seq. Num */
- void squashAll(DynInstPtr inst, int stage_num,
- InstSeqNum done_seq_num, ThreadID tid);
-
- /** Squash Resources in Pool after a memory stall
- * NOTE: Only use during Switch-On-Miss Thread model
- */
- void squashDueToMemStall(DynInstPtr inst, int stage_num,
- InstSeqNum done_seq_num, ThreadID tid);
-
- /** Activate Thread in all resources */
- void activateThread(ThreadID tid);
-
- /** De-Activate Thread in all resources */
- void deactivateThread(ThreadID tid);
-
- /** Suspend Thread in all resources */
- void suspendThread(ThreadID tid);
-
- /** Broadcast Context Switch Update to all resources */
- void updateAfterContextSwitch(DynInstPtr inst, ThreadID tid);
-
- /** Broadcast graduation to all resources */
- void instGraduated(InstSeqNum seq_num, ThreadID tid);
-
- /** Broadcast trap to all resources */
- void trap(const Fault &fault, ThreadID tid, DynInstPtr inst);
-
- /** The number of instructions available that a resource can
- * can still process.
- */
- int slotsAvail(int res_idx);
-
- /** The number of instructions using a resource */
- int slotsInUse(int res_idx);
-
- /** Schedule resource event, regardless of its current state. */
- void scheduleEvent(InOrderCPU::CPUEventType e_type, DynInstPtr inst = NULL,
- Cycles delay = Cycles(0), int res_idx = 0,
- ThreadID tid = 0);
-
- /** UnSchedule resource event, regardless of its current state. */
- void unscheduleEvent(int res_idx, DynInstPtr inst);
-
- /** Tasks to perform when simulation starts */
- virtual void startup() { }
-
- /** The CPU(s) that this resource interacts with */
- InOrderCPU *cpu;
-
- DynInstPtr dummyInst[ThePipeline::MaxThreads];
-
- /**
- * Get a pointer to the (always present) instruction fetch unit.
- *
- * @return the instruction unit
- */
- FetchUnit *getInstUnit() const { return instUnit; }
-
- /**
- * Get a pointer to the (always present) data load/store unit.
- *
- * @return the data cache unit
- */
- CacheUnit *getDataUnit() const { return dataUnit; }
-
- private:
-
- /** The instruction fetch unit. */
- FetchUnit *instUnit;
-
- /** The data load/store unit. */
- CacheUnit *dataUnit;
-
- std::vector<Resource *> resources;
-
- /** Resources that need to be updated on an inst. graduation */
- std::vector<int> gradObjects;
-};
-
-#endif //__CPU_INORDER_RESOURCE_HH__