kernel_stats.hh revision 2665:a124942bacb8 
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 * Authors: Lisa Hsu
29 *          Nathan Binkert
30 */
31
32#ifndef __KERNEL_STATS_HH__
33#define __KERNEL_STATS_HH__
34
35#include <map>
36#include <stack>
37#include <string>
38#include <vector>
39
40#include "cpu/static_inst.hh"
41
42class BaseCPU;
43class ExecContext;
44class FnEvent;
45// What does kernel stats expect is included?
46class System;
47
48namespace Kernel {
49
50enum cpu_mode { kernel, user, idle, interrupt, cpu_mode_num };
51extern const char *modestr[];
52
53class Binning
54{
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
127class Statistics : public Serializable
128{
129  private:
130    friend class Binning;
131
132  private:
133    std::string myname;
134
135    Addr idleProcess;
136    cpu_mode themode;
137    Tick lastModeTick;
138    bool bin_int;
139
140    void changeMode(cpu_mode newmode, ExecContext *xc);
141
142  private:
143    Stats::Scalar<> _arm;
144    Stats::Scalar<> _quiesce;
145    Stats::Scalar<> _ivlb;
146    Stats::Scalar<> _ivle;
147    Stats::Scalar<> _hwrei;
148
149    Stats::Vector<> _iplCount;
150    Stats::Vector<> _iplGood;
151    Stats::Vector<> _iplTicks;
152    Stats::Formula _iplUsed;
153
154    Stats::Vector<> _callpal;
155    Stats::Vector<> _syscall;
156//    Stats::Vector<> _faults;
157
158    Stats::Vector<> _mode;
159    Stats::Vector<> _modeGood;
160    Stats::Formula _modeFraction;
161    Stats::Vector<> _modeTicks;
162
163    Stats::Scalar<> _swap_context;
164
165  private:
166    int iplLast;
167    Tick iplLastTick;
168
169  public:
170    Statistics(System *system);
171
172    const std::string name() const { return myname; }
173    void regStats(const std::string &name);
174
175  public:
176    void arm() { _arm++; }
177    void quiesce() { _quiesce++; }
178    void ivlb() { _ivlb++; }
179    void ivle() { _ivle++; }
180    void hwrei() { _hwrei++; }
181    void swpipl(int ipl);
182    void mode(cpu_mode newmode, ExecContext *xc);
183    void context(Addr oldpcbb, Addr newpcbb, ExecContext *xc);
184    void callpal(int code, ExecContext *xc);
185
186    void setIdleProcess(Addr idle, ExecContext *xc);
187
188  public:
189    virtual void serialize(std::ostream &os);
190    virtual void unserialize(Checkpoint *cp, const std::string &section);
191};
192
193/* end namespace Kernel */ }
194
195#endif // __KERNEL_STATS_HH__
196