sim/ppc/mon.c

   1 /*  This file is part of the program psim.
   2
   3     Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au>
   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 #include <stdio.h>
  33
  34 #ifdef HAVE_STRING_H
  35 #include <string.h>
  36 #else
  37 #ifdef HAVE_STRINGS_H
  38 #include <strings.h>
  39 #endif
  40 #endif
  41
  42 #ifdef HAVE_UNISTD_H
  43 #include <unistd.h>
  44 #endif
  45
  46 #ifdef HAVE_TIME_H
  47 #include <time.h>
  48 #endif
  49
  50 #ifdef HAVE_SYS_TIMES_H
  51 #include <sys/times.h>
  52 #endif
  53
  54 #ifdef HAVE_SYS_RESOURCE_H
  55 #include <sys/resource.h>
  56 #endif
  57
  58 struct _cpu_mon {
  59   unsigned issue_count[nr_itable_entries];
  60   unsigned read_count;
  61   unsigned write_count;
  62   function_unit_print *func_unit_print;
  63 };
  64
  65 struct _mon {
  66   int nr_cpus;
  67   cpu_mon cpu_monitor[MAX_NR_PROCESSORS];
  68 };
  69
  70
  71 INLINE_MON mon *
  72 mon_create(void)
  73 {
  74   mon *monitor = ZALLOC(mon);
  75   return monitor;
  76 }
  77
  78
  79 INLINE_MON cpu_mon *
  80 mon_cpu(mon *monitor,
  81         int cpu_nr)
  82 {
  83   if (cpu_nr < 0 || cpu_nr >= MAX_NR_PROCESSORS)
  84     error("mon_cpu() - invalid cpu number\n");
  85   return &monitor->cpu_monitor[cpu_nr];
  86 }
  87
  88
  89 INLINE_MON void
  90 mon_init(mon *monitor,
  91          int nr_cpus)
  92 {
  93   bzero(monitor, sizeof(*monitor));
  94   monitor->nr_cpus = nr_cpus;
  95 }
  96
  97
  98 INLINE_MON void
  99 mon_issue(itable_index index,
 100           cpu *processor,
 101           unsigned_word cia)
 102 {
 103   cpu_mon *monitor = cpu_monitor(processor);
 104   ASSERT(index <= nr_itable_entries);
 105   monitor->issue_count[index] += 1;
 106
 107   if (WITH_FUNCTION_UNIT)
 108     function_unit_issue(index, cpu_function_unit(processor), cia);
 109 }
 110
 111
 112 INLINE_MON void
 113 mon_read(unsigned_word ea,
 114          unsigned_word ra,
 115          unsigned nr_bytes,
 116          cpu *processor,
 117          unsigned_word cia)
 118 {
 119   cpu_mon *monitor = cpu_monitor(processor);
 120   monitor->read_count += 1;
 121 }
 122
 123
 124 INLINE_MON void
 125 mon_write(unsigned_word ea,
 126           unsigned_word ra,
 127           unsigned nr_bytes,
 128           cpu *processor,
 129           unsigned_word cia)
 130 {
 131   cpu_mon *monitor = cpu_monitor(processor);
 132   monitor->write_count += 1;
 133 }
 134
 135 STATIC_INLINE_MON unsigned
 136 mon_get_number_of_insns(cpu_mon *monitor)
 137 {
 138   itable_index index;
 139   unsigned total_insns = 0;
 140   for (index = 0; index < nr_itable_entries; index++)
 141     total_insns += monitor->issue_count[index];
 142   return total_insns;
 143 }
 144
 145 STATIC_INLINE_MON char *
 146 mon_add_commas(char *buf,
 147                int sizeof_buf,
 148                long value)
 149 {
 150   int comma = 3;
 151   char *endbuf = buf + sizeof_buf - 1;
 152
 153   *--endbuf = '\0';
 154   do {
 155     if (comma-- == 0)
 156       {
 157         *--endbuf = ',';
 158         comma = 2;
 159       }
 160
 161     *--endbuf = (value % 10) + '0';
 162   } while ((value /= 10) != 0);
 163
 164   ASSERT(endbuf >= buf);
 165   return endbuf;
 166 }
 167
 168
 169 INLINE_MON void
 170 mon_print_info(psim *system,
 171                mon *monitor,
 172                int verbose)
 173 {
 174   char buffer[20];
 175   int cpu_nr;
 176   int len_cpu;
 177   int len_num = 0;
 178   int len;
 179   long total_insns = 0;
 180   long cpu_insns_second = 0;
 181   double cpu_time = 0.0;
 182
 183   for (cpu_nr = 0; cpu_nr < monitor->nr_cpus; cpu_nr++) {
 184     unsigned num_insns = mon_get_number_of_insns(&monitor->cpu_monitor[cpu_nr]);
 185
 186     total_insns += num_insns;
 187     len = strlen (mon_add_commas(buffer, sizeof(buffer), num_insns));
 188     if (len_num < len)
 189       len_num = len;
 190   }
 191
 192   sprintf (buffer, "%d", (int)monitor->nr_cpus + 1);
 193   len_cpu = strlen (buffer);
 194
 195 #ifdef HAVE_GETRUSAGE
 196   if (total_insns && verbose > 1)
 197     {
 198       struct rusage mytime;
 199       if (getrusage (RUSAGE_SELF, &mytime) == 0
 200           && (mytime.ru_utime.tv_sec > 0 || mytime.ru_utime.tv_usec > 0)) {
 201
 202         cpu_time = (double)mytime.ru_utime.tv_sec + (((double)mytime.ru_utime.tv_usec) / 1000000.0);
 203         cpu_insns_second = (long)(((double)total_insns / cpu_time) + 0.5);
 204       }
 205   }
 206 #endif
 207
 208   for (cpu_nr = 0; cpu_nr < monitor->nr_cpus; cpu_nr++) {
 209
 210     if (verbose > 1) {
 211       itable_index index;
 212
 213       if (cpu_nr)
 214         printf_filtered ("\n");
 215
 216       for (index = 0; index < nr_itable_entries; index++) {
 217         if (monitor->cpu_monitor[cpu_nr].issue_count[index])
 218           printf_filtered("CPU #%*d executed %*s %s instruction%s.\n",
 219                           len_cpu, cpu_nr+1,
 220                           len_num, mon_add_commas(buffer,
 221                                                   sizeof(buffer),
 222                                                   monitor->cpu_monitor[cpu_nr].issue_count[index]),
 223                           itable[index].name,
 224                           (monitor->cpu_monitor[cpu_nr].issue_count[index] == 1) ? "" : "s");
 225       }
 226
 227       printf_filtered ("\n");
 228     }
 229
 230     if (WITH_FUNCTION_UNIT)
 231       {
 232         function_unit *func_unit = cpu_function_unit(psim_cpu(system, cpu_nr));
 233         function_unit_print *ptr = function_unit_mon_info(func_unit);
 234         function_unit_print *orig_ptr = ptr;
 235
 236         while (ptr) {
 237           if (ptr->count)
 238             printf_filtered("CPU #%*d executed %*s %s%s.\n",
 239                             len_cpu, cpu_nr+1,
 240                             len_num, mon_add_commas(buffer,
 241                                                     sizeof(buffer),
 242                                                     ptr->count),
 243                             ptr->name,
 244                             ((ptr->count == 1)
 245                              ? ptr->suffix_singular
 246                              : ptr->suffix_plural));
 247
 248           ptr = ptr->next;
 249         }
 250
 251         function_unit_mon_free(func_unit, orig_ptr);
 252       }
 253
 254     if (monitor->cpu_monitor[cpu_nr].read_count)
 255       printf_filtered ("CPU #%*d executed %*s data read%s.\n",
 256                        len_cpu, cpu_nr+1,
 257                        len_num, mon_add_commas(buffer,
 258                                                sizeof(buffer),
 259                                                monitor->cpu_monitor[cpu_nr].read_count),
 260                        (monitor->cpu_monitor[cpu_nr].read_count == 1) ? "" : "s");
 261
 262     if (monitor->cpu_monitor[cpu_nr].write_count)
 263       printf_filtered ("CPU #%*d executed %*s data write%s.\n",
 264                        len_cpu, cpu_nr+1,
 265                        len_num, mon_add_commas(buffer,
 266                                                sizeof(buffer),
 267                                                monitor->cpu_monitor[cpu_nr].write_count),
 268                        (monitor->cpu_monitor[cpu_nr].write_count == 1) ? "" : "s");
 269
 270     printf_filtered("CPU #%*d executed %*s instructions in total.\n",
 271                     len_cpu, cpu_nr+1,
 272                     len_num, mon_add_commas(buffer,
 273                                             sizeof(buffer),
 274                                             mon_get_number_of_insns(&monitor->cpu_monitor[cpu_nr])));
 275
 276   }
 277
 278   if (monitor->nr_cpus > 1)
 279     printf_filtered("\nAll CPUs executed %s instructions in total.\n",
 280                     mon_add_commas(buffer, sizeof(buffer), total_insns));
 281
 282   if (cpu_insns_second)
 283     printf_filtered ("%sSimulator speed was %s instructions/second\n",
 284                      (monitor->nr_cpus <= 1 && verbose <= 1) ? "" : "\n",
 285                      mon_add_commas(buffer, sizeof(buffer), cpu_insns_second));
 286 }
 287
 288 #endif /* _MON_C_ */