kernel_stats.hh revision 3544:3db423e3b41d 
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 ThreadContext;
44class FnEvent;
45// What does kernel stats expect is included?
46class System;
47
48namespace Kernel {
49
50enum cpu_mode { kernel, user, idle, cpu_mode_num };
51extern const char *modestr[];
52
53class Statistics : public Serializable
54{
55  private:
56    std::string myname;
57
58    Addr idleProcess;
59    cpu_mode themode;
60    Tick lastModeTick;
61
62    void changeMode(cpu_mode newmode, ThreadContext *tc);
63
64  private:
65    Stats::Scalar<> _arm;
66    Stats::Scalar<> _quiesce;
67    Stats::Scalar<> _hwrei;
68
69    Stats::Vector<> _iplCount;
70    Stats::Vector<> _iplGood;
71    Stats::Vector<> _iplTicks;
72    Stats::Formula _iplUsed;
73
74    Stats::Vector<> _callpal;
75    Stats::Vector<> _syscall;
76//    Stats::Vector<> _faults;
77
78    Stats::Vector<> _mode;
79    Stats::Vector<> _modeGood;
80    Stats::Formula _modeFraction;
81    Stats::Vector<> _modeTicks;
82
83    Stats::Scalar<> _swap_context;
84
85  private:
86    int iplLast;
87    Tick iplLastTick;
88
89  public:
90    Statistics(System *system);
91
92    const std::string name() const { return myname; }
93    void regStats(const std::string &name);
94
95  public:
96    void arm() { _arm++; }
97    void quiesce() { _quiesce++; }
98    void hwrei() { _hwrei++; }
99    void swpipl(int ipl);
100    void mode(cpu_mode newmode, ThreadContext *tc);
101    void context(Addr oldpcbb, Addr newpcbb, ThreadContext *tc);
102    void callpal(int code, ThreadContext *tc);
103
104    void setIdleProcess(Addr idle, ThreadContext *tc);
105
106  public:
107    virtual void serialize(std::ostream &os);
108    virtual void unserialize(Checkpoint *cp, const std::string &section);
109};
110
111/* end namespace Kernel */ }
112
113#endif // __KERNEL_STATS_HH__
114