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[/] [or1k/] [tags/] [nog_patch_40/] [or1ksim/] [toplevel.c] - Blame information for rev 1765

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1 2 cvs 
/* toplevel.c -- Top level simulator source file
2 
   Copyright (C) 1999 Damjan Lampret, lampret@opencores.org
3 
 
4 
This file is part of OpenRISC 1000 Architectural Simulator.
5 
 
6 
This program is free software; you can redistribute it and/or modify
7 
it under the terms of the GNU General Public License as published by
8 
the Free Software Foundation; either version 2 of the License, or
9 
(at your option) any later version.
10 
 
11 
This program is distributed in the hope that it will be useful,
12 
but WITHOUT ANY WARRANTY; without even the implied warranty of
13 
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 
GNU General Public License for more details.
15 
 
16 
You should have received a copy of the GNU General Public License
17 
along with this program; if not, write to the Free Software
18 
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
19 
 
20 
/* Simulator commands. Help and version output. SIGINT processing.
21 
Stdout redirection is specific to linux (I need to fix this). */
22 
 
23 16 jrydberg 
 
24 2 cvs 
#include <stdio.h>
25 
#include <ctype.h>
26 
#include <string.h>
27 
#include <stdlib.h>
28 46 lampret 
#include <unistd.h>
29 2 cvs 
#include <signal.h>
30 
#include <stdarg.h>
31 123 markom 
#include <fcntl.h>
32 728 markom 
#include <limits.h>
33 1308 phoenix 
#include <time.h>
34 2 cvs 
 
35 1350 nogj 
#include "config.h"
36 
 
37 
#ifdef HAVE_INTTYPES_H
38 
#include <inttypes.h>
39 
#endif
40 
 
41 
#include "port.h"
42 2 cvs 
#include "arch.h"
43 
#include "parse.h"
44 
#include "abstract.h"
45 261 markom 
#include "labels.h"
46 2 cvs 
#include "execute.h"
47 69 lampret 
#include "sim-config.h"
48 103 lampret 
#include "spr_defs.h"
49 518 markom 
#include "sprs.h"
50 304 markom 
#include "vapi.h"
51 479 markom 
#include "gdbcomm.h"
52 
#include "debug_unit.h"
53 28 lampret 
#include "coff.h"
54 728 markom 
#include "sched.h"
55 632 ivang 
#include "profiler.h"
56 
#include "mprofiler.h"
57 1308 phoenix 
#include "pm.h"
58 
#include "pic.h"
59 1344 nogj 
#include "opcode/or32.h"
60 1308 phoenix 
#include "stats.h"
61 
#include "immu.h"
62 
#include "dmmu.h"
63 
#include "dcache_model.h"
64 
#include "icache_model.h"
65 
#include "branch_predict.h"
66 
#include "dumpverilog.h"
67 
#include "trace.h"
68 
#include "cuc.h"
69 632 ivang 
 
70 2 cvs 
/* CVS revision number. */
71 1404 nogj 
const char rcsrev[] = "$Revision: 1.120 $";
72 2 cvs 
 
73 344 markom 
inline void debug(int level, const char *format, ...)
74 2 cvs 
{
75 7 jrydberg 
  char *p;
76 
  va_list ap;
77 2 cvs 
 
78 344 markom 
  if (config.sim.debug >= level) {
79 69 lampret 
    if ((p = malloc(1000)) == NULL)
80 
      return;
81 
    va_start(ap, format);
82 
    (void) vsnprintf(p, 1000, format, ap);
83 
    va_end(ap);
84 997 markom 
    PRINTF("%s", p);
85 69 lampret 
    fflush(stdout);
86 
    free(p);
87 
  } else {
88 
#if DEBUG
89 7 jrydberg 
  if ((p = malloc(1000)) == NULL)
90 
    return;
91 
  va_start(ap, format);
92 
  (void) vsnprintf(p, 1000, format, ap);
93 
  va_end(ap);
94 997 markom 
  PRINTF("%s\n", p);
95 7 jrydberg 
  fflush(stdout);
96 
  free(p);
97 2 cvs 
#endif
98 69 lampret 
  }
99 2 cvs 
}
100 
 
101 304 markom 
void ctrl_c(signum)
102 7 jrydberg 
     int signum;
103 2 cvs 
{
104 884 markom 
  runtime.sim.cont_run = runtime.cpu.stalled ? 0 : 1;
105 551 markom 
  runtime.sim.iprompt = 1;
106 479 markom 
  set_stall_state (0);
107 7 jrydberg 
  signal(SIGINT, ctrl_c);
108 2 cvs 
}
109 
 
110 304 markom 
void version()
111 2 cvs 
{
112 997 markom 
  PRINTF ("\n");
113 
  PRINTF ("OpenRISC 1000 (OR32) Architectural Simulator, %s\n", rcsrev);
114 
  PRINTF ("Copyright (C) 1999 Damjan Lampret, lampret@opencores.org\n");
115 
  PRINTF ("Copyright (C) 2000 Damjan Lampret, lampret@opencores.org\n");
116 
  PRINTF ("                   Jimmy Chen-Min Chen, jimmy@ee.nctu.edu.tw\n");
117 
  PRINTF ("                   Johan Rydberg, johan.rydberg@insight.se\n");
118 
  PRINTF ("                   Marko Mlinar, markom@opencores.org\n");
119 
  PRINTF ("Copyright (C) 2001 Simon Srot, simons@opencores.org\n");
120 
  PRINTF ("                   Marko Mlinar, markom@opencores.org\n");
121 
  PRINTF ("Copyright (C) 2002 Marko Mlinar, markom@opencores.org\n");
122 
  PRINTF ("                   Simon Srot, simons@opencores.org\n");
123 
  PRINTF ("Visit http://www.opencores.org for more information about ");
124 
  PRINTF ("OpenRISC 1000 and\nother open source cores.\n\n");
125 
  PRINTF ("This software comes with ABSOLUTELY NO WARRANTY; for ");
126 
  PRINTF ("details see COPYING.\nThis is free software, and you ");
127 
  PRINTF ("are welcome to redistribute it under certain\nconditions; ");
128 
  PRINTF ("for details see COPYING.\n");
129 2 cvs 
}
130 
 
131 1360 nogj 
struct sim_reset_hook {
132 
  void *dat;
133 
  void (*reset_hook)(void *);
134 
  struct sim_reset_hook *next;
135 
};
136 21 cmchen 
 
137 1360 nogj 
struct sim_reset_hook *sim_reset_hooks = NULL;
138 
 
139 
/* Registers a new reset hook, called when sim_reset below is called */
140 
void reg_sim_reset(void (*reset_hook)(void *), void *dat)
141 
{
142 
  struct sim_reset_hook *new = malloc(sizeof(struct sim_reset_hook));
143 
 
144 
  if(!new) {
145 
    fprintf(stderr, "reg_sim_reset: Out-of-memory\n");
146 
    exit(1);
147 
  }
148 
 
149 
  new->dat = dat;
150 
  new->reset_hook = reset_hook;
151 
  new->next = sim_reset_hooks;
152 
  sim_reset_hooks = new;
153 
}
154 
 
155 479 markom 
/* Resets all subunits */
156 1353 nogj 
void sim_reset (void)
157 479 markom 
{
158 1360 nogj 
  struct sim_reset_hook *cur_reset = sim_reset_hooks;
159 
 
160 1390 nogj 
  /* We absolutely MUST reset the scheduler first */
161 
  sched_reset();
162 1360 nogj 
 
163 
  while(cur_reset) {
164 
    cur_reset->reset_hook(cur_reset->dat);
165 
    cur_reset = cur_reset->next;
166 
  }
167 
 
168 479 markom 
  tick_reset();
169 
  pm_reset();
170 
  pic_reset();
171 
  du_reset ();
172 557 markom 
  cpu_reset();
173 479 markom 
}
174 
 
175 304 markom 
/* Initalizes all devices and sim */
176 
void sim_init ()
177 2 cvs 
{
178 424 markom 
  init_memory_table ();
179 269 markom 
  init_labels();
180 
  init_breakpoints();
181 361 markom 
  initstats();
182 
  build_automata();
183 1390 nogj 
 
184 
  sched_init();
185 361 markom 
 
186 305 markom 
  if (config.sim.profile) {
187 361 markom 
    runtime.sim.fprof = fopen(config.sim.prof_fn, "wt+");
188 
    if(!runtime.sim.fprof) {
189 551 markom 
      fprintf(stderr, "ERROR: Problems opening profile file.\n");
190 
      exit (1);
191 173 markom 
    } else
192 897 markom 
      fprintf(runtime.sim.fprof, "+00000000 FFFFFFFF FFFFFFFF [outside_functions]\n");
193 173 markom 
  }
194 294 markom 
 
195 547 markom 
  if (config.sim.mprofile) {
196 
    runtime.sim.fmprof = fopen(config.sim.mprof_fn, "wb+");
197 
    if(!runtime.sim.fmprof) {
198 551 markom 
      fprintf(stderr, "ERROR: Problems opening memory profile file.\n");
199 
      exit (1);
200 547 markom 
    }
201 
  }
202 
 
203 294 markom 
  if (config.sim.exe_log) {
204 361 markom 
    runtime.sim.fexe_log = fopen(config.sim.exe_log_fn, "wt+");
205 
    if(!runtime.sim.fexe_log) {
206 997 markom 
      PRINTF("ERROR: Problems opening exe_log file.\n");
207 551 markom 
      exit (1);
208 294 markom 
    }
209 
  }
210 263 markom 
 
211 624 ivang 
  if (config.sim.spr_log) {
212 997 markom 
    PRINTF("OPENING SPRLOG\n");
213 624 ivang 
    runtime.sim.fspr_log = fopen(config.sim.spr_log_fn, "wt+");
214 
    if (!runtime.sim.fspr_log) {
215 997 markom 
      PRINTF("ERROR: Problems opening spr_log file.\n");
216 624 ivang 
      exit(1);
217 
    }
218 
  }
219 
 
220 262 markom 
  /* Initialize memory */
221 
  {
222 361 markom 
    extern struct dev_memarea *dev_list;
223 554 markom 
    struct dev_memarea *area;
224 361 markom 
    int i;
225 
    if (config.memory.type == MT_RANDOM) {
226 
      unsigned int val = 0;
227 123 markom 
 
228 262 markom 
      if (config.memory.random_seed == -1) {
229 551 markom 
        runtime.memory.random_seed = time(NULL);
230 262 markom 
        /* Print out the seed just in case we ever need to debug */
231 997 markom 
        PRINTF("Seeding random generator with value %d\n", config.memory.random_seed);
232 551 markom 
      } else
233 
        runtime.memory.random_seed = config.memory.random_seed;
234 
      srandom(runtime.memory.random_seed);
235 262 markom 
 
236 554 markom 
      for (area = dev_list; area; area = area->next)
237 
        for(i = 0; i < area->size; i++) {
238 221 markom 
          val = random();
239 554 markom 
          setsim_mem8(i + area->addr_compare, val & 0xFF);
240 221 markom 
        }
241 262 markom 
    } else if(config.memory.type == MT_PATTERN) {
242 554 markom 
      for (area = dev_list; area; area = area->next)
243 
        for(i = 0; i < area->size; i++)
244 
          setsim_mem8(i + area->addr_compare, config.memory.pattern);
245 269 markom 
    } else if (config.memory.type != MT_UNKNOWN) {
246 262 markom 
      fprintf(stderr, "Invalid memory configuration type.\n");
247 361 markom 
      exit(1);
248 221 markom 
    }
249 242 markom 
  }
250 262 markom 
 
251 361 markom 
  if(runtime.sim.filename) {
252 
    unsigned long endaddr = 0xFFFFFFFF;
253 
    endaddr = loadcode(runtime.sim.filename, 0, 0); /* MM170901 always load at address zero.  */
254 
    if (endaddr == -1) {
255 
      fprintf(stderr, "Problems loading boot code.\n");
256 
      exit(1);
257 
    }
258 
  }
259 551 markom 
 
260 361 markom 
  /* Disable gdb debugging, if debug module is not available.  */
261 
  if (config.debug.gdb_enabled && !config.debug.enabled) {
262 
    config.debug.gdb_enabled = 0;
263 
    if (config.sim.verbose)
264 
      fprintf (stderr, "WARNING: Debug module not enabled, cannot start gdb.\n");
265 
  }
266 551 markom 
 
267 550 markom 
  if (config.debug.gdb_enabled)
268 479 markom 
    gdbcomm_init ();
269 551 markom 
 
270 361 markom 
  /* Enable dependency stats, if we want to do history analisis */
271 394 markom 
  if (config.sim.history && !config.cpu.dependstats) {
272 
    config.cpu.dependstats = 1;
273 361 markom 
    if (config.sim.verbose)
274 394 markom 
      fprintf (stderr, "WARNING: dependstats stats must be enabled to do history analisis.\n");
275 361 markom 
  }
276 551 markom 
 
277 361 markom 
  /* Debug forces verbose */
278 
  if (config.sim.debug && !config.sim.verbose) {
279 
    config.sim.verbose = 1;
280 
    fprintf (stderr, "WARNING: verbose turned on.\n");
281 
  }
282 
 
283 
  /* Start VAPI before device initialization.  */
284 
  if (config.vapi.enabled) {
285 551 markom 
    runtime.vapi.enabled = 1;
286 361 markom 
    vapi_init ();
287 
    if (config.sim.verbose)
288 997 markom 
      PRINTF ("VAPI started, waiting for clients.\n");
289 361 markom 
  }
290 538 markom 
 
291 479 markom 
  sim_reset ();
292 424 markom 
 
293 543 simons 
  lock_memory_table ();
294 
 
295 361 markom 
  /* Wait till all test are connected.  */
296 551 markom 
  if (runtime.vapi.enabled) {
297 361 markom 
    int numu = vapi_num_unconnected (0);
298 
    if (numu) {
299 997 markom 
      PRINTF ("\nWaiting for VAPI tests with ids:\n");
300 361 markom 
      vapi_num_unconnected (1);
301 997 markom 
      PRINTF ("\n");
302 1308 phoenix 
      while ((numu = vapi_num_unconnected (0))) {
303 361 markom 
        vapi_check ();
304 997 markom 
        PRINTF ("\rStill waiting for %i VAPI test(s) to connect.       ", numu);
305 361 markom 
        usleep (100);
306 
      }
307 997 markom 
      PRINTF ("\n");
308 361 markom 
    }
309 997 markom 
    PRINTF ("All devices connected                         \n");
310 361 markom 
  }
311 
  /* simulator is initialized */
312 
  runtime.sim.init = 0;
313 304 markom 
}
314 7 jrydberg 
 
315 304 markom 
/* Cleanup */
316 
void sim_done ()
317 
{
318 
  if (config.sim.profile) {
319 1350 nogj 
    fprintf(runtime.sim.fprof,"-%08llX FFFFFFFF\n", runtime.sim.cycles);
320 361 markom 
    fclose(runtime.sim.fprof);
321 304 markom 
  }
322 547 markom 
 
323 847 markom 
  if (config.sim.mprofile) fclose(runtime.sim.fmprof);
324 361 markom 
  if (config.sim.exe_log)   fclose(runtime.sim.fexe_log);
325 551 markom 
  if (runtime.vapi.enabled)  vapi_done ();
326 426 markom 
  done_memory_table ();
327 304 markom 
  exit(0);
328 
}
329 
 
330 728 markom 
/* Executes jobs in time queue */
331 
static inline void do_scheduler ()
332 
{
333 1390 nogj 
  struct sched_entry *tmp;
334 632 ivang 
 
335 728 markom 
  /* Execute all jobs till now */
336 
  do {
337 1390 nogj 
    tmp = scheduler.job_queue;
338 
    scheduler.job_queue = tmp->next;
339 
    tmp->next = scheduler.free_job_queue;
340 
    scheduler.free_job_queue = tmp;
341 
 
342 
    tmp->func (tmp->param);
343 
  } while (scheduler.job_queue->time <= 0);
344 728 markom 
}
345 632 ivang 
 
346 728 markom 
/* Main function */
347 304 markom 
int main(argc, argv)
348 
     int argc;
349 
     char *argv[];
350 
{
351 361 markom 
  srand(getpid());
352 
  init_defconfig();
353 1358 nogj 
  reg_config_secs();
354 361 markom 
  if (parse_args(argc, argv)) {
355 997 markom 
    PRINTF("Usage: %s [options] <filename>\n", argv[0]);
356 
    PRINTF("Options:\n");
357 
    PRINTF(" -v                   version and copyright note\n");
358 
    PRINTF(" -i                   enable interactive command prompt\n");
359 
    PRINTF(" --nosrv              do not launch JTAG proxy server\n"); /* (CZ) */
360 
    PRINTF(" --srv <n>            launch JTAG proxy server on port <n>; [random]\n"); /* (CZ) */
361 
    PRINTF(" -f or --file         load script file [sim.cfg]\n");
362 
    PRINTF(" --enable-profile     enable profiling.\n");
363 
    PRINTF(" --enable-mprofile    enable memory profiling.\n");
364 
    PRINTF(" --output-cfg         prints C structure of current\n");
365 
    PRINTF("                      configuration to standard output\n");
366 
    PRINTF("\nor   : %s ", argv[0]);
367 847 markom 
    mp_help ();
368 997 markom 
    PRINTF("\nor   : %s ", argv[0]);
369 847 markom 
    prof_help ();
370 361 markom 
    exit(-1);
371 
  }
372 304 markom 
 
373 
  /* Read configuration file.  */
374 361 markom 
  if (!runtime.sim.script_file_specified)
375 
    read_script_file ("sim.cfg");
376 883 markom 
 
377 
  /* Overide parameters with command line ones */
378 
  if (runtime.simcmd.profile) config.sim.profile = 1;
379 
  if (runtime.simcmd.mprofile) config.sim.mprofile = 1;
380 
 
381 424 markom 
  if (!runtime.sim.script_file_specified && config.sim.verbose)
382 
    fprintf (stderr, "WARNING: No config file read, assuming default configuration.\n");
383 549 markom 
  if (runtime.sim.output_cfg) {
384 
    output_cfg (stdout);
385 
    exit (0);
386 
  }
387 304 markom 
  print_config();
388 336 markom 
  sim_init ();
389 304 markom 
  signal(SIGINT, ctrl_c);
390 335 markom 
 
391 1353 nogj 
  runtime.sim.hush = 1;
392 
  runtime.sim.cont_run = -1;
393 
 
394 361 markom 
  while(1) {
395 1353 nogj 
    if (runtime.sim.iprompt)
396 
        handle_sim_command();
397 7 jrydberg 
 
398 714 markom 
    { /* Needed by execution */
399 
      extern int do_stats;
400 
      do_stats = config.cpu.dependstats || config.cpu.superscalar || config.cpu.dependstats
401 
              || config.sim.history || config.sim.exe_log;
402 
    }
403 
 
404 361 markom 
    /* MM: 'run -1' means endless execution.  */
405 884 markom 
    while(runtime.sim.cont_run) {
406 1390 nogj 
      long long time_start = runtime.sim.cycles;
407 1375 nogj 
      if (config.debug.enabled) {
408 1353 nogj 
        du_clock(); // reset watchpoints
409 884 markom 
        if (runtime.cpu.stalled) {
410 557 markom 
          if(config.debug.gdb_enabled) {
411 
            BlockJTAG();
412 
            HandleServerSocket(false);
413 605 markom 
          } else {
414 
            fprintf (stderr, "WARNING: CPU stalled and gdb connection not enabled.");
415 884 markom 
            runtime.sim.cont_run = 0;
416 605 markom 
          }
417 557 markom 
          continue;
418 
        }
419 479 markom 
      }
420 127 chris 
 
421 537 markom 
      /* Each cycle has counter of mem_cycles; this value is joined with cycles
422 
         at the end of the cycle; no sim originated memory accesses should be
423 
         performed inbetween. */
424 884 markom 
      runtime.sim.mem_cycles = 0;
425 557 markom 
      if (!config.pm.enabled || !testsprbits(SPR_PMR, SPR_PMR_DME | SPR_PMR_SME)) {
426 884 markom 
        if (runtime.sim.cont_run > 0) runtime.sim.cont_run--;
427 599 simons 
        if (cpu_clock ()) break;
428 261 markom 
      }
429 304 markom 
 
430 551 markom 
      if (config.vapi.enabled && runtime.vapi.enabled) vapi_check();
431 557 markom 
      if (config.debug.gdb_enabled) HandleServerSocket(false); /* block & check_stdin = false */
432 1375 nogj 
      if(config.debug.enabled)
433 479 markom 
        if (testsprbits(SPR_DMR1, SPR_DMR1_ST)) set_stall_state (1);
434 557 markom 
 
435 884 markom 
      runtime.sim.cycles += runtime.sim.mem_cycles;
436 1390 nogj 
      scheduler.job_queue->time -= runtime.sim.cycles - time_start;
437 
      if (scheduler.job_queue->time <= 0) do_scheduler ();
438 1353 nogj 
      if (!runtime.sim.hush) dumpreg();
439 361 markom 
    }
440 1353 nogj 
    runtime.sim.hush = 0;
441 361 markom 
    fflush(stdout);
442 997 markom 
    runtime.sim.fout = stdout;
443 2 cvs 
 
444 551 markom 
    if (!runtime.sim.iprompt)  /* non-interactive quit */
445 361 markom 
      sim_done();
446 
  }
447 
  sim_done();
448 2 cvs 
}

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