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1 /*  This file is part of the program psim.
2
3     Copyright (C) 1994-1995, Andrew Cagney <[email protected]>
4
5     This program is free software; you can redistribute it and/or modify
6     it under the terms of the GNU General Public License as published by
7     the Free Software Foundation; either version 2 of the License, or
8     (at your option) any later version.
9
10     This program is distributed in the hope that it will be useful,
11     but WITHOUT ANY WARRANTY; without even the implied warranty of
12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13     GNU General Public License for more details.
14  
15     You should have received a copy of the GNU General Public License
16     along with this program; if not, write to the Free Software
17     Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18  
19     */
20
21
22 #ifndef _MON_C_
23 #define _MON_C_
24
25 #ifndef STATIC_INLINE_MON
26 #define STATIC_INLINE_MON STATIC_INLINE
27 #endif
28
29 #include "basics.h"
30 #include "cpu.h"
31 #include "mon.h"
32
33 #ifdef HAVE_STRING_H
34 #include <string.h>
35 #else
36 #ifdef HAVE_STRINGS_H
37 #include <strings.h>
38 #endif
39 #endif
40
41 #ifdef HAVE_UNISTD_H
42 #include <unistd.h>
43 #endif
44
45 #ifdef HAVE_TIME_H
46 #include <time.h>
47 #endif
48
49 #ifdef HAVE_SYS_TIMES_H
50 #include <sys/times.h>
51 #endif
52
53 #ifdef HAVE_SYS_RESOURCE_H
54 #include <sys/resource.h>
55 #endif
56
57 struct _cpu_mon {
58   unsigned issue_count[nr_itable_entries];
59   unsigned read_count;
60   unsigned write_count;
61 };
62
63 struct _mon {
64   int nr_cpus;
65   cpu_mon cpu_monitor[MAX_NR_PROCESSORS];
66 };
67
68
69 INLINE_MON mon *
70 mon_create(void)
71 {
72   mon *monitor = ZALLOC(mon);
73   return monitor;
74 }
75
76
77 INLINE_MON cpu_mon *
78 mon_cpu(mon *monitor,
79         int cpu_nr)
80 {
81   if (cpu_nr < 0 || cpu_nr >= MAX_NR_PROCESSORS)
82     error("mon_cpu() - invalid cpu number\n");
83   return &monitor->cpu_monitor[cpu_nr];
84 }
85
86
87 INLINE_MON void
88 mon_init(mon *monitor,
89          int nr_cpus)
90 {
91   bzero(monitor, sizeof(*monitor));
92   monitor->nr_cpus = nr_cpus;
93 }
94
95
96 INLINE_MON void
97 mon_issue(itable_index index,
98           cpu *processor, 
99           unsigned_word cia)
100 {
101   cpu_mon *monitor = cpu_monitor(processor);
102   ASSERT(index <= nr_itable_entries);
103   monitor->issue_count[index] += 1;
104 }
105
106
107 INLINE_MON void
108 mon_read(unsigned_word ea,
109          unsigned_word ra,
110          unsigned nr_bytes,
111          cpu *processor,
112          unsigned_word cia)
113 {
114   cpu_mon *monitor = cpu_monitor(processor);
115   monitor->read_count += 1;
116 }
117
118
119 INLINE_MON void
120 mon_write(unsigned_word ea,
121           unsigned_word ra,
122           unsigned nr_bytes,
123           cpu *processor,
124           unsigned_word cia)
125 {
126   cpu_mon *monitor = cpu_monitor(processor);
127   monitor->write_count += 1;
128 }
129
130
131 STATIC_INLINE_MON unsigned
132 mon_get_number_of_insns(cpu_mon *monitor)
133 {
134   itable_index index;
135   unsigned total_insns = 0;
136   for (index = 0; index < nr_itable_entries; index++)
137     total_insns += monitor->issue_count[index];
138   return total_insns;
139 }
140
141 STATIC_INLINE_MON char *
142 mon_add_commas(char *buf,
143                int sizeof_buf,
144                long value)
145 {
146   int comma = 3;
147   char *endbuf = buf + sizeof_buf - 1;
148
149   *--endbuf = '\0';
150   do {
151     if (comma-- == 0)
152       {
153         *--endbuf = ',';
154         comma = 2;
155       }
156
157     *--endbuf = (value % 10) + '0';
158   } while ((value /= 10) != 0);
159
160   ASSERT(endbuf >= buf);
161   return endbuf;
162 }
163
164
165 INLINE_MON void
166 mon_print_info(mon *monitor,
167                int verbose)
168 {
169   char buffer[20];
170   int cpu_nr;
171   int len_cpu;
172   int len_num = 0;
173   int len;
174   long total_insns = 0;
175   long cpu_insns_second;
176   double cpu_time = 0.0;
177
178   for (cpu_nr = 0; cpu_nr < monitor->nr_cpus; cpu_nr++) {
179     unsigned num_insns = mon_get_number_of_insns(&monitor->cpu_monitor[cpu_nr]);
180
181     total_insns += num_insns;
182     len = strlen (mon_add_commas(buffer, sizeof(buffer), num_insns));
183     if (len_num < len)
184       len_num = len;
185   }
186   
187   sprintf (buffer, "%d", (int)monitor->nr_cpus + 1);
188   len_cpu = strlen (buffer);
189
190 #ifdef HAVE_GETRUSAGE
191   if (total_insns && verbose > 1)
192     {
193       struct rusage mytime;
194       if (getrusage (RUSAGE_SELF, &mytime) == 0
195           && (mytime.ru_utime.tv_sec > 0 || mytime.ru_utime.tv_usec > 0)) {
196
197         cpu_time = (double)mytime.ru_utime.tv_sec + (((double)mytime.ru_utime.tv_usec) / 1000000.0);
198         cpu_insns_second = (long)(((double)total_insns / cpu_time) + 0.5);
199       }
200   }
201 #endif
202
203   for (cpu_nr = 0; cpu_nr < monitor->nr_cpus; cpu_nr++) {
204
205     if (verbose > 1) {
206       itable_index index;
207
208       if (cpu_nr)
209         printf_filtered ("\n");
210
211       for (index = 0; index < nr_itable_entries; index++) {
212         if (monitor->cpu_monitor[cpu_nr].issue_count[index])
213           printf_filtered("CPU #%*d executed %*s %s instruction%s.\n",
214                           len_cpu, cpu_nr+1,
215                           len_num, mon_add_commas(buffer,
216                                                   sizeof(buffer),
217                                                   monitor->cpu_monitor[cpu_nr].issue_count[index]),
218                           itable[index].name,
219                           (monitor->cpu_monitor[cpu_nr].issue_count[index] == 1) ? "" : "s");
220       }
221
222       if (monitor->cpu_monitor[cpu_nr].read_count)
223         printf_filtered ("CPU #%*d executed %*s data reads.\n",
224                          len_cpu, cpu_nr+1,
225                          len_num, mon_add_commas(buffer,
226                                                  sizeof(buffer),
227                                                  monitor->cpu_monitor[cpu_nr].read_count));
228
229       if (monitor->cpu_monitor[cpu_nr].write_count)
230         printf_filtered ("CPU #%*d executed %*s data writes.\n",
231                          len_cpu, cpu_nr+1,
232                          len_num, mon_add_commas(buffer,
233                                                  sizeof(buffer),
234                                                  monitor->cpu_monitor[cpu_nr].write_count));
235     }
236     
237     printf_filtered("CPU #%*d executed %*s instructions in total.\n",
238                     len_cpu, cpu_nr+1,
239                     len_num, mon_add_commas(buffer,
240                                             sizeof(buffer),
241                                             mon_get_number_of_insns(&monitor->cpu_monitor[cpu_nr])));
242   }
243
244   if (monitor->nr_cpus > 1)
245     printf_filtered("\nAll CPUs executed %s instructions in total.\n",
246                     mon_add_commas(buffer, sizeof(buffer), total_insns));
247
248   if (cpu_insns_second)
249     printf_filtered ("\nSimulator speed was %s instructions/second\n",
250                      mon_add_commas(buffer, sizeof(buffer), cpu_insns_second));
251 }
252
253 #endif /* _MON_C_ */
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