kern/kernel_stats.hh

   1 /*
   2  * Copyright (c) 2004-2005 The Regents of The University of Michigan
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions are
   7  * met: redistributions of source code must retain the above copyright
   8  * notice, this list of conditions and the following disclaimer;
   9  * redistributions in binary form must reproduce the above copyright
  10  * notice, this list of conditions and the following disclaimer in the
  11  * documentation and/or other materials provided with the distribution;
  12  * neither the name of the copyright holders nor the names of its
  13  * contributors may be used to endorse or promote products derived from
  14  * this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  17  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  18  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  19  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  20  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  21  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  22  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  26  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 #ifndef __KERNEL_STATS_HH__
  30 #define __KERNEL_STATS_HH__
  31
  32 #include <map>
  33 #include <stack>
  34 #include <string>
  35 #include <vector>
  36
  37 #include "cpu/static_inst.hh"
  38
  39 class BaseCPU;
  40 class ExecContext;
  41 class FnEvent;
  42 // What does kernel stats expect is included?
  43 class System;
  44 class Fault;
  45
  46 namespace Kernel {
  47
  48 enum cpu_mode { kernel, user, idle, interrupt, cpu_mode_num };
  49 extern const char *modestr[];
  50
  51 class Binning
  52 {
  53   protected:
  54     typedef TheISA::Addr Addr;
  55   private:
  56     std::string myname;
  57     System *system;
  58
  59   private:
  60     // lisa's binning stuff
  61     struct fnCall
  62     {
  63         Stats::MainBin *myBin;
  64         std::string name;
  65     };
  66
  67     struct SWContext
  68     {
  69         Counter calls;
  70         std::stack<fnCall *> callStack;
  71     };
  72
  73     std::map<const std::string, Stats::MainBin *> fnBins;
  74     std::map<const Addr, SWContext *> swCtxMap;
  75
  76     std::multimap<const std::string, std::string> callerMap;
  77     void populateMap(std::string caller, std::string callee);
  78
  79     std::vector<FnEvent *> fnEvents;
  80
  81     Stats::Scalar<> fnCalls;
  82
  83     Stats::MainBin *getBin(const std::string &name);
  84     bool findCaller(std::string, std::string) const;
  85
  86     SWContext *findContext(Addr pcb);
  87     bool addContext(Addr pcb, SWContext *ctx)
  88     {
  89         return (swCtxMap.insert(std::make_pair(pcb, ctx))).second;
  90     }
  91
  92     void remContext(Addr pcb)
  93     {
  94         swCtxMap.erase(pcb);
  95     }
  96
  97     void dumpState() const;
  98
  99     SWContext *swctx;
 100     std::vector<std::string> binned_fns;
 101
 102   private:
 103     Stats::MainBin *modeBin[cpu_mode_num];
 104
 105   public:
 106     const bool bin;
 107     const bool fnbin;
 108
 109     cpu_mode themode;
 110     void palSwapContext(ExecContext *xc);
 111     void execute(ExecContext *xc, StaticInstPtr inst);
 112     void call(ExecContext *xc, Stats::MainBin *myBin);
 113     void changeMode(cpu_mode mode);
 114
 115   public:
 116     Binning(System *sys);
 117     virtual ~Binning();
 118
 119     const std::string name() const { return myname; }
 120     void regStats(const std::string &name);
 121
 122   public:
 123     virtual void serialize(std::ostream &os);
 124     virtual void unserialize(Checkpoint *cp, const std::string &section);
 125 };
 126
 127 class Statistics : public Serializable
 128 {
 129   protected:
 130     typedef TheISA::Addr Addr;
 131   private:
 132     friend class Binning;
 133
 134   private:
 135     std::string myname;
 136     ExecContext *xc;
 137
 138     Addr idleProcess;
 139     cpu_mode themode;
 140     Tick lastModeTick;
 141     bool bin_int;
 142
 143     void changeMode(cpu_mode newmode);
 144
 145   private:
 146     Stats::Scalar<> _arm;
 147     Stats::Scalar<> _quiesce;
 148     Stats::Scalar<> _ivlb;
 149     Stats::Scalar<> _ivle;
 150     Stats::Scalar<> _hwrei;
 151
 152     Stats::Vector<> _iplCount;
 153     Stats::Vector<> _iplGood;
 154     Stats::Vector<> _iplTicks;
 155     Stats::Formula _iplUsed;
 156
 157     Stats::Vector<> _callpal;
 158     Stats::Vector<> _syscall;
 159     Stats::Vector<> _faults;
 160
 161     Stats::Vector<> _mode;
 162     Stats::Vector<> _modeGood;
 163     Stats::Formula _modeFraction;
 164     Stats::Vector<> _modeTicks;
 165
 166     Stats::Scalar<> _swap_context;
 167
 168   private:
 169     int iplLast;
 170     Tick iplLastTick;
 171
 172   public:
 173     Statistics(ExecContext *context);
 174
 175     const std::string name() const { return myname; }
 176     void regStats(const std::string &name);
 177
 178   public:
 179     void arm() { _arm++; }
 180     void quiesce() { _quiesce++; }
 181     void ivlb() { _ivlb++; }
 182     void ivle() { _ivle++; }
 183     void hwrei() { _hwrei++; }
 184     void fault(Fault * fault)
 185     {
 186             if(fault == NoFault) _faults[0]++;
 187             else if(fault == MachineCheckFault) _faults[2]++;
 188             else if(fault == AlignmentFault) _faults[7]++;
 189             else _faults[fault->id]++;
 190     }// FIXME: When there are no generic system fault objects, this will go back to _faults[fault]++; }
 191     void swpipl(int ipl);
 192     void mode(cpu_mode newmode);
 193     void context(Addr oldpcbb, Addr newpcbb);
 194     void callpal(int code);
 195
 196     void setIdleProcess(Addr idle);
 197
 198   public:
 199     virtual void serialize(std::ostream &os);
 200     virtual void unserialize(Checkpoint *cp, const std::string &section);
 201 };
 202
 203 /* end namespace Kernel */ }
 204
 205 #endif // __KERNEL_STATS_HH__