7d4f187700
This patch adds the necessary flags to the SConstruct and SConscript files for compiling using clang 2.9 and later (on Ubuntu et al and OSX XCode 4.2), and also cleans up a bunch of compiler warnings found by clang. Most of the warnings are related to hidden virtual functions, comparisons with unsigneds >= 0, and if-statements with empty bodies. A number of mismatches between struct and class are also fixed. clang 2.8 is not working as it has problems with class names that occur in multiple namespaces (e.g. Statistics in kernel_stats.hh). clang has a bug (http://llvm.org/bugs/show_bug.cgi?id=7247) which causes confusion between the container std::set and the function Packet::set, and this is currently addressed by not including the entire namespace std, but rather selecting e.g. "using std::vector" in the appropriate places.
229 lines
7.1 KiB
C++
229 lines
7.1 KiB
C++
/*
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* Copyright (c) 2007 MIPS Technologies, Inc.
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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: Korey Sewell
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*
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*/
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#ifndef __CPU_INORDER_RESOURCE_POOL_HH__
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#define __CPU_INORDER_RESOURCE_POOL_HH__
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#include <list>
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#include <string>
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#include <vector>
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#include "cpu/inorder/cpu.hh"
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#include "cpu/inorder/inorder_dyn_inst.hh"
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#include "cpu/inorder/params.hh"
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#include "cpu/inorder/pipeline_traits.hh"
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#include "cpu/inorder/resource.hh"
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#include "cpu/inst_seq.hh"
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#include "params/InOrderCPU.hh"
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#include "sim/eventq.hh"
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#include "sim/sim_object.hh"
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class Event;
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class InOrderCPU;
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class Resource;
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class ResourceEvent;
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class ResourcePool {
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public:
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typedef InOrderDynInst::DynInstPtr DynInstPtr;
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public:
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// List of Resource Pool Events that extends
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// the list started by the CPU
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// NOTE(1): Resource Pool also uses event list
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// CPUEventType defined in inorder/cpu.hh
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enum ResPoolEventType {
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InstGraduated = InOrderCPU::NumCPUEvents,
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SquashAll,
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UpdateAfterContextSwitch,
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Default
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};
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enum ResPoolEventPri {
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ResPool_Pri = InOrderCPU::InOrderCPU_Pri - 5,
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ResGrad_Pri,
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ResSquash_Pri
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};
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class ResPoolEvent : public Event
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{
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protected:
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/** Resource Pool */
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ResourcePool *resPool;
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public:
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InOrderCPU::CPUEventType eventType;
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DynInstPtr inst;
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InstSeqNum seqNum;
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int stageNum;
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ThreadID tid;
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public:
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/** Constructs a resource event. */
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ResPoolEvent(ResourcePool *_resPool,
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InOrderCPU::CPUEventType e_type,
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DynInstPtr _inst,
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int stage_num,
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InstSeqNum seq_num,
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ThreadID _tid,
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ResPoolEventPri res_pri = ResPool_Pri);
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/** Set Type of Event To Be Scheduled */
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void setEvent(InOrderCPU::CPUEventType e_type,
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DynInstPtr _inst,
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int stage_num,
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InstSeqNum seq_num,
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ThreadID _tid)
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{
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eventType = e_type;
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inst = _inst;
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seqNum = seq_num;
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stageNum = stage_num;
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tid = _tid;
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}
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/** Processes a resource event. */
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void process();
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/** Returns the description of the resource event. */
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const char *description() const;
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/** Schedule Event */
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void scheduleEvent(int delay);
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/** Unschedule This Event */
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void unscheduleEvent();
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};
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public:
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ResourcePool(InOrderCPU *_cpu, ThePipeline::Params *params);
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virtual ~ResourcePool();
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std::string name();
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std::string name(int res_idx) { return resources[res_idx]->name(); }
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void init();
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void print();
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/** Register Statistics in All Resources */
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void regStats();
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/** Returns a specific port. */
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Port* getPort(const std::string &if_name, int idx);
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/** Returns a specific port. */
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unsigned getPortIdx(const std::string &port_name);
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/** Returns a specific resource. */
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unsigned getResIdx(const std::string &res_name);
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unsigned getResIdx(const ThePipeline::ResourceId &res_id);
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/** Returns a pointer to a resource */
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Resource* getResource(int res_idx) { return resources[res_idx]; }
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/** Request usage of this resource. Returns -1 if not granted and
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* a positive request tag if granted.
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*/
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ResReqPtr request(int res_idx, DynInstPtr inst);
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/** Squash The Resource */
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void squash(DynInstPtr inst, int res_idx, InstSeqNum done_seq_num,
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ThreadID tid);
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/** Squash All Resources in Pool after Done Seq. Num */
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void squashAll(DynInstPtr inst, int stage_num,
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InstSeqNum done_seq_num, ThreadID tid);
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/** Squash Resources in Pool after a memory stall
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* NOTE: Only use during Switch-On-Miss Thread model
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*/
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void squashDueToMemStall(DynInstPtr inst, int stage_num,
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InstSeqNum done_seq_num, ThreadID tid);
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/** Activate Thread in all resources */
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void activateThread(ThreadID tid);
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/** De-Activate Thread in all resources */
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void deactivateThread(ThreadID tid);
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/** Suspend Thread in all resources */
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void suspendThread(ThreadID tid);
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/** Broadcast Context Switch Update to all resources */
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void updateAfterContextSwitch(DynInstPtr inst, ThreadID tid);
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/** Broadcast graduation to all resources */
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void instGraduated(InstSeqNum seq_num, ThreadID tid);
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/** Broadcast trap to all resources */
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void trap(Fault fault, ThreadID tid, DynInstPtr inst);
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/** The number of instructions available that a resource can
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* can still process.
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*/
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int slotsAvail(int res_idx);
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/** The number of instructions using a resource */
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int slotsInUse(int res_idx);
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/** Schedule resource event, regardless of its current state. */
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void scheduleEvent(InOrderCPU::CPUEventType e_type, DynInstPtr inst = NULL,
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int delay = 0, int res_idx = 0, ThreadID tid = 0);
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/** UnSchedule resource event, regardless of its current state. */
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void unscheduleEvent(int res_idx, DynInstPtr inst);
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/** Tasks to perform when simulation starts */
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virtual void startup() { }
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/** The CPU(s) that this resource interacts with */
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InOrderCPU *cpu;
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DynInstPtr dummyInst[ThePipeline::MaxThreads];
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private:
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std::vector<Resource *> resources;
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/** Resources that interface with memory objects */
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std::vector<int> memObjects;
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/** Resources that need to be updated on an inst. graduation */
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std::vector<int> gradObjects;
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};
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#endif //__CPU_INORDER_RESOURCE_HH__
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