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;

--- 15 unchanged lines hidden (view full) ---

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#include <map>
33#include <stack>
32#include <string>
33
36#include "arch/alpha/osfpal.hh"
34#include "base/trace.hh"
35#include "cpu/thread_context.hh"
36#include "kern/kernel_stats.hh"
37#include "kern/tru64/tru64_syscalls.hh"
38#include "sim/system.hh"
39
40using namespace std;
41using namespace Stats;
42
43namespace Kernel {
44
48const char *modestr[] = { "kernel", "user", "idle" };
49
45Statistics::Statistics(System *system)
51 : idleProcess((Addr)-1), themode(kernel), lastModeTick(0),
52 iplLast(0), iplLastTick(0)
46 : iplLast(0), iplLastTick(0)
47{
48}
49
50void
51Statistics::regStats(const string &_name)
52{
53 myname = _name;
54
55 _arm
56 .name(name() + ".inst.arm")
57 .desc("number of arm instructions executed")
58 ;
59
60 _quiesce
61 .name(name() + ".inst.quiesce")
62 .desc("number of quiesce instructions executed")
63 ;
64
71 _hwrei
72 .name(name() + ".inst.hwrei")
73 .desc("number of hwrei instructions executed")
74 ;
75
65 _iplCount
66 .init(32)
67 .name(name() + ".ipl_count")
68 .desc("number of times we switched to this ipl")
69 .flags(total | pdf | nozero | nonan)
70 ;
71
72 _iplGood

--- 13 unchanged lines hidden (view full) ---

86 _iplUsed
87 .name(name() + ".ipl_used")
88 .desc("fraction of swpipl calls that actually changed the ipl")
89 .flags(total | nozero | nonan)
90 ;
91
92 _iplUsed = _iplGood / _iplCount;
93
105 _callpal
106 .init(256)
107 .name(name() + ".callpal")
108 .desc("number of callpals executed")
109 .flags(total | pdf | nozero | nonan)
110 ;
111
112 for (int i = 0; i < PAL::NumCodes; ++i) {
113 const char *str = PAL::name(i);
114 if (str)
115 _callpal.subname(i, str);
116 }
117
94 _syscall
95 .init(SystemCalls<Tru64>::Number)
96 .name(name() + ".syscall")
97 .desc("number of syscalls executed")
98 .flags(total | pdf | nozero | nonan)
99 ;
100
101 //@todo This needs to get the names of syscalls from an appropriate place.
102#if 0
103 for (int i = 0; i < SystemCalls<Tru64>::Number; ++i) {
104 const char *str = SystemCalls<Tru64>::name(i);
105 if (str) {
106 _syscall.subname(i, str);
107 }
108 }
131
132 _mode
133 .init(cpu_mode_num)
134 .name(name() + ".mode_switch")
135 .desc("number of protection mode switches")
136 ;
137
138 for (int i = 0; i < cpu_mode_num; ++i)
139 _mode.subname(i, modestr[i]);
140
141 _modeGood
142 .init(cpu_mode_num)
143 .name(name() + ".mode_good")
144 ;
145
146 for (int i = 0; i < cpu_mode_num; ++i)
147 _modeGood.subname(i, modestr[i]);
148
149 _modeFraction
150 .name(name() + ".mode_switch_good")
151 .desc("fraction of useful protection mode switches")
152 .flags(total)
153 ;
154
155 for (int i = 0; i < cpu_mode_num; ++i)
156 _modeFraction.subname(i, modestr[i]);
157
158 _modeFraction = _modeGood / _mode;
159
160 _modeTicks
161 .init(cpu_mode_num)
162 .name(name() + ".mode_ticks")
163 .desc("number of ticks spent at the given mode")
164 .flags(pdf)
165 ;
166 for (int i = 0; i < cpu_mode_num; ++i)
167 _modeTicks.subname(i, modestr[i]);
168
169 _swap_context
170 .name(name() + ".swap_context")
171 .desc("number of times the context was actually changed")
172 ;
109#endif
110}
111
112void
176Statistics::setIdleProcess(Addr idlepcbb, ThreadContext *tc)
177{
178 assert(themode == kernel);
179 idleProcess = idlepcbb;
180 themode = idle;
181 changeMode(themode, tc);
182}
183
184void
185Statistics::changeMode(cpu_mode newmode, ThreadContext *tc)
186{
187 _mode[newmode]++;
188
189 if (newmode == themode)
190 return;
191
192 DPRINTF(Context, "old mode=%-8s new mode=%-8s\n",
193 modestr[themode], modestr[newmode]);
194
195 _modeGood[newmode]++;
196 _modeTicks[themode] += curTick - lastModeTick;
197
198 lastModeTick = curTick;
199 themode = newmode;
200}
201
202void
113Statistics::swpipl(int ipl)
114{
115 assert(ipl >= 0 && ipl <= 0x1f && "invalid IPL\n");
116
117 _iplCount[ipl]++;
118
119 if (ipl == iplLast)
120 return;
121
122 _iplGood[ipl]++;
123 _iplTicks[iplLast] += curTick - iplLastTick;
124 iplLastTick = curTick;
125 iplLast = ipl;
126}
127
128void
219Statistics::mode(cpu_mode newmode, ThreadContext *tc)
220{
221 Addr pcbb = tc->readMiscReg(AlphaISA::IPR_PALtemp23);
222
223 if (newmode == kernel && pcbb == idleProcess)
224 newmode = idle;
225
226 changeMode(newmode, tc);
227}
228
229void
230Statistics::context(Addr oldpcbb, Addr newpcbb, ThreadContext *tc)
231{
232 assert(themode != user);
233
234 _swap_context++;
235 changeMode(newpcbb == idleProcess ? idle : kernel, tc);
236}
237
238void
239Statistics::callpal(int code, ThreadContext *tc)
240{
241 if (!PAL::name(code))
242 return;
243
244 _callpal[code]++;
245
246 switch (code) {
247 case PAL::callsys: {
248 int number = tc->readIntReg(0);
249 if (SystemCalls<Tru64>::validSyscallNumber(number)) {
250 int cvtnum = SystemCalls<Tru64>::convert(number);
251 _syscall[cvtnum]++;
252 }
253 } break;
254 }
255}
256
257void
129Statistics::serialize(ostream &os)
130{
260 int exemode = themode;
261 SERIALIZE_SCALAR(exemode);
262 SERIALIZE_SCALAR(idleProcess);
131 SERIALIZE_SCALAR(iplLast);
132 SERIALIZE_SCALAR(iplLastTick);
265 SERIALIZE_SCALAR(lastModeTick);
133}
134
135void
136Statistics::unserialize(Checkpoint *cp, const string &section)
137{
271 int exemode;
272 UNSERIALIZE_SCALAR(exemode);
273 UNSERIALIZE_SCALAR(idleProcess);
138 UNSERIALIZE_SCALAR(iplLast);
139 UNSERIALIZE_SCALAR(iplLastTick);
276 UNSERIALIZE_SCALAR(lastModeTick);
277 themode = (cpu_mode)exemode;
140}
141
142/* end namespace Kernel */ }