/[gxemul]/trunk/src/cpu.c
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revision 4 by dpavlin, Mon Oct 8 16:18:00 2007 UTC revision 12 by dpavlin, Mon Oct 8 16:18:38 2007 UTC
# Line 25  Line 25 
25   *  SUCH DAMAGE.   *  SUCH DAMAGE.
26   *   *
27   *   *
28   *  $Id: cpu.c,v 1.292 2005/04/14 21:01:53 debug Exp $   *  $Id: cpu.c,v 1.316 2005/08/16 05:37:09 debug Exp $
29   *   *
30   *  Common routines for CPU emulation. (Not specific to any CPU type.)   *  Common routines for CPU emulation. (Not specific to any CPU type.)
31   */   */
# Line 37  Line 37 
37    
38  #include "cpu.h"  #include "cpu.h"
39  #include "machine.h"  #include "machine.h"
40    #include "memory.h"
41  #include "misc.h"  #include "misc.h"
42    
43    
# Line 56  static struct cpu_family *first_cpu_fami Line 57  static struct cpu_family *first_cpu_fami
57  struct cpu *cpu_new(struct memory *mem, struct machine *machine,  struct cpu *cpu_new(struct memory *mem, struct machine *machine,
58          int cpu_id, char *name)          int cpu_id, char *name)
59  {  {
60          struct cpu *c;          struct cpu *cpu;
61          struct cpu_family *fp;          struct cpu_family *fp;
62          char *cpu_type_name;          char *cpu_type_name;
63    
# Line 71  struct cpu *cpu_new(struct memory *mem, Line 72  struct cpu *cpu_new(struct memory *mem,
72                  exit(1);                  exit(1);
73          }          }
74    
75            cpu = zeroed_alloc(sizeof(struct cpu));
76    
77            cpu->memory_rw          = NULL;
78            cpu->name               = cpu_type_name;
79            cpu->mem                = mem;
80            cpu->machine            = machine;
81            cpu->cpu_id             = cpu_id;
82            cpu->byte_order         = EMUL_LITTLE_ENDIAN;
83            cpu->bootstrap_cpu_flag = 0;
84            cpu->running            = 0;
85    
86            cpu_create_or_reset_tc(cpu);
87    
88          fp = first_cpu_family;          fp = first_cpu_family;
89    
90          while (fp != NULL) {          while (fp != NULL) {
91                  if (fp->cpu_new != NULL) {                  if (fp->cpu_new != NULL) {
92                          c = fp->cpu_new(mem, machine, cpu_id, cpu_type_name);                          if (fp->cpu_new(cpu, mem, machine, cpu_id,
93                          if (c != NULL) {                              cpu_type_name)) {
94                                  /*  Some sanity-checks:  */                                  /*  Sanity check:  */
95                                  if (c->memory_rw == NULL) {                                  if (cpu->memory_rw == NULL) {
96                                          fatal("No memory_rw?\n");                                          fatal("\ncpu_new(): memory_rw == "
97                                                "NULL\n");
98                                          exit(1);                                          exit(1);
99                                  }                                  }
100                                    return cpu;
                                 return c;  
101                          }                          }
102                  }                  }
103    
104                  fp = fp->next;                  fp = fp->next;
105          }          }
106    
107          fprintf(stderr, "cpu_new(): unknown cpu type '%s'\n", cpu_type_name);          fatal("\ncpu_new(): unknown cpu type '%s'\n", cpu_type_name);
108          exit(1);          exit(1);
109  }  }
110    
# Line 215  int cpu_interrupt_ack(struct cpu *cpu, u Line 229  int cpu_interrupt_ack(struct cpu *cpu, u
229    
230    
231  /*  /*
232     *  cpu_functioncall_trace():
233     *
234     *  This function should be called if machine->show_trace_tree is enabled, and
235     *  a function call is being made. f contains the address of the function.
236     */
237    void cpu_functioncall_trace(struct cpu *cpu, uint64_t f)
238    {
239            int i, n_args = -1;
240            char *symbol;
241            uint64_t offset;
242    
243            if (cpu->machine->ncpus > 1)
244                    fatal("cpu%i:\t", cpu->cpu_id);
245    
246            cpu->trace_tree_depth ++;
247            for (i=0; i<cpu->trace_tree_depth; i++)
248                    fatal("  ");
249    
250            fatal("<");
251            symbol = get_symbol_name_and_n_args(&cpu->machine->symbol_context,
252                f, &offset, &n_args);
253            if (symbol != NULL)
254                    fatal("%s", symbol);
255            else {
256                    if (cpu->is_32bit)
257                            fatal("0x%08x", (int)f);
258                    else
259                            fatal("0x%llx", (long long)f);
260            }
261            fatal("(");
262    
263            if (cpu->machine->cpu_family->functioncall_trace != NULL)
264                    cpu->machine->cpu_family->functioncall_trace(cpu, f, n_args);
265    
266            fatal(")>\n");
267    }
268    
269    
270    /*
271     *  cpu_functioncall_trace_return():
272     *
273     *  This function should be called if machine->show_trace_tree is enabled, and
274     *  a function is being returned from.
275     *
276     *  TODO: Print return value? This could be implemented similar to the
277     *  cpu->functioncall_trace function call above.
278     */
279    void cpu_functioncall_trace_return(struct cpu *cpu)
280    {
281            cpu->trace_tree_depth --;
282            if (cpu->trace_tree_depth < 0)
283                    cpu->trace_tree_depth = 0;
284    }
285    
286    
287    /*
288     *  cpu_create_or_reset_tc():
289     *
290     *  Create the translation cache in memory (ie allocate memory for it), if
291     *  necessary, and then reset it to an initial state.
292     */
293    void cpu_create_or_reset_tc(struct cpu *cpu)
294    {
295            if (cpu->translation_cache == NULL)
296                    cpu->translation_cache = zeroed_alloc(DYNTRANS_CACHE_SIZE +
297                        DYNTRANS_CACHE_MARGIN);
298    
299            /*  Create an empty table at the beginning of the translation cache:  */
300            memset(cpu->translation_cache, 0, sizeof(uint32_t)
301                * N_BASE_TABLE_ENTRIES);
302    
303            cpu->translation_cache_cur_ofs =
304                N_BASE_TABLE_ENTRIES * sizeof(uint32_t);
305    
306            /*
307             *  There might be other translation pointers that still point to
308             *  within the translation_cache region. Let's invalidate those too:
309             */
310            if (cpu->invalidate_code_translation_caches != NULL)
311                    cpu->invalidate_code_translation_caches(cpu);
312    }
313    
314    
315    /*
316   *  cpu_run():   *  cpu_run():
317   *   *
318   *  Run instructions on all CPUs in this machine, for a "medium duration"   *  Run instructions on all CPUs in this machine, for a "medium duration"
# Line 288  void cpu_list_available_types(void) Line 386  void cpu_list_available_types(void)
386   *  Shuts down all CPUs in a machine when ending a simulation. (This function   *  Shuts down all CPUs in a machine when ending a simulation. (This function
387   *  should only need to be called once for each machine.)   *  should only need to be called once for each machine.)
388   */   */
389  void cpu_run_deinit(struct emul *emul, struct machine *machine)  void cpu_run_deinit(struct machine *machine)
390  {  {
391          int te;          int te;
392    
# Line 307  void cpu_run_deinit(struct emul *emul, s Line 405  void cpu_run_deinit(struct emul *emul, s
405          debug("cpu_run_deinit(): All CPUs halted.\n");          debug("cpu_run_deinit(): All CPUs halted.\n");
406    
407          if (machine->show_nr_of_instructions || !quiet_mode)          if (machine->show_nr_of_instructions || !quiet_mode)
408                  cpu_show_cycles(machine, &machine->starttime,                  cpu_show_cycles(machine, 1);
                     machine->ncycles, 1);  
409    
410          if (show_opcode_statistics)          if (show_opcode_statistics)
411                  cpu_show_full_statistics(machine);                  cpu_show_full_statistics(machine);
# Line 325  void cpu_run_deinit(struct emul *emul, s Line 422  void cpu_run_deinit(struct emul *emul, s
422   *  line to stdout about how many instructions/cycles have been executed so   *  line to stdout about how many instructions/cycles have been executed so
423   *  far.   *  far.
424   */   */
425  void cpu_show_cycles(struct machine *machine,  void cpu_show_cycles(struct machine *machine, int forced)
         struct timeval *starttime, int64_t ncycles, int forced)  
426  {  {
427          uint64_t offset, pc;          uint64_t offset, pc;
         int is_32bit = 0, instrs_per_cycle;  
428          char *symbol;          char *symbol;
429          int64_t mseconds, ninstrs;          int64_t mseconds, ninstrs, is, avg;
430          struct timeval tv;          struct timeval tv;
431          int h, m, s, ms, d;          int h, m, s, ms, d, instrs_per_cycle = 1;
432    
433          static int64_t mseconds_last = 0;          static int64_t mseconds_last = 0;
434          static int64_t ninstrs_last = -1;          static int64_t ninstrs_last = -1;
435    
436          if (machine->arch != ARCH_MIPS) {          switch (machine->arch) {
437                  fatal("cpu_show_cycles(): not yet for !MIPS\n");          case ARCH_MIPS:
438                  return;                  instrs_per_cycle = machine->cpus[machine->bootstrap_cpu]->
439                        cd.mips.cpu_type.instrs_per_cycle;
440                    break;
441          }          }
442    
         if (machine->cpus[machine->bootstrap_cpu]->cd.mips.cpu_type.isa_level  
             < 3 || machine->cpus[machine->bootstrap_cpu]->cd.mips.cpu_type.  
             isa_level == 32)  
                 is_32bit = 1;  
443          pc = machine->cpus[machine->bootstrap_cpu]->pc;          pc = machine->cpus[machine->bootstrap_cpu]->pc;
         instrs_per_cycle = machine->cpus[machine->bootstrap_cpu]->  
             cd.mips.cpu_type.instrs_per_cycle;  
444    
445          gettimeofday(&tv, NULL);          gettimeofday(&tv, NULL);
446          mseconds = (tv.tv_sec - starttime->tv_sec) * 1000          mseconds = (tv.tv_sec - machine->starttime.tv_sec) * 1000
447                   + (tv.tv_usec - starttime->tv_usec) / 1000;                   + (tv.tv_usec - machine->starttime.tv_usec) / 1000;
448    
449          if (mseconds == 0)          if (mseconds == 0)
450                  mseconds = 1;                  mseconds = 1;
# Line 361  void cpu_show_cycles(struct machine *mac Line 452  void cpu_show_cycles(struct machine *mac
452          if (mseconds - mseconds_last == 0)          if (mseconds - mseconds_last == 0)
453                  mseconds ++;                  mseconds ++;
454    
455          ninstrs = ncycles * instrs_per_cycle;          ninstrs = machine->ncycles_since_gettimeofday * instrs_per_cycle;
456    
457          if (machine->automatic_clock_adjustment) {          if (machine->automatic_clock_adjustment) {
458                  static int first_adjustment = 1;                  static int first_adjustment = 1;
# Line 382  void cpu_show_cycles(struct machine *mac Line 473  void cpu_show_cycles(struct machine *mac
473                              cur_cycles_per_second) / 16;                              cur_cycles_per_second) / 16;
474                  }                  }
475    
476                  debug("[ updating emulated_hz to %lli Hz ]\n",                  /*  debug("[ updating emulated_hz to %lli Hz ]\n",
477                      (long long)machine->emulated_hz);                      (long long)machine->emulated_hz);  */
478          }          }
479    
480    
# Line 391  void cpu_show_cycles(struct machine *mac Line 482  void cpu_show_cycles(struct machine *mac
482          if (!machine->show_nr_of_instructions && !forced)          if (!machine->show_nr_of_instructions && !forced)
483                  goto do_return;                  goto do_return;
484    
485            printf("[ %lli instrs",
486          printf("[ ");              (long long)(machine->ncycles * instrs_per_cycle));
487    
488          if (!machine->automatic_clock_adjustment) {          if (!machine->automatic_clock_adjustment) {
489                  d = machine->emulated_hz / 1000;                  d = machine->emulated_hz / 1000;
490                  if (d < 1)                  if (d < 1)
491                          d = 1;                          d = 1;
492                  ms = ncycles / d;                  ms = machine->ncycles / d;
493                  h = ms / 3600000;                  h = ms / 3600000;
494                  ms -= 3600000 * h;                  ms -= 3600000 * h;
495                  m = ms / 60000;                  m = ms / 60000;
# Line 409  void cpu_show_cycles(struct machine *mac Line 500  void cpu_show_cycles(struct machine *mac
500                  printf("emulated time = %02i:%02i:%02i.%03i; ", h, m, s, ms);                  printf("emulated time = %02i:%02i:%02i.%03i; ", h, m, s, ms);
501          }          }
502    
         printf("cycles=%lli", (long long) ncycles);  
   
         if (instrs_per_cycle > 1)  
                 printf(" (%lli instrs)", (long long) ninstrs);  
   
503          /*  Instructions per second, and average so far:  */          /*  Instructions per second, and average so far:  */
504          printf("; i/s=%lli avg=%lli",          is = 1000 * (ninstrs-ninstrs_last) / (mseconds-mseconds_last);
505              (long long) ((long long)1000 * (ninstrs-ninstrs_last)          avg = (long long)1000 * ninstrs / mseconds;
506                  / (mseconds-mseconds_last)),          if (is < 0)
507              (long long) ((long long)1000 * ninstrs / mseconds));                  is = 0;
508            if (avg < 0)
509                    avg = 0;
510            printf("; i/s=%lli avg=%lli", (long long)is, (long long)avg);
511    
512          symbol = get_symbol_name(&machine->symbol_context, pc, &offset);          symbol = get_symbol_name(&machine->symbol_context, pc, &offset);
513    
514          if (is_32bit)          if (machine->ncpus == 1) {
515                  printf("; pc=%08x", (int)pc);                  if (machine->cpus[machine->bootstrap_cpu]->is_32bit)
516          else                          printf("; pc=0x%08x", (int)pc);
517                  printf("; pc=%016llx", (long long)pc);                  else
518                            printf("; pc=0x%016llx", (long long)pc);
519            }
520    
521          printf(" <%s> ]\n", symbol? symbol : "no symbol");          if (symbol != NULL)
522                    printf(" <%s>", symbol);
523            printf(" ]\n");
524    
525  do_return:  do_return:
526          ninstrs_last = ninstrs;          ninstrs_last = ninstrs;
# Line 441  do_return: Line 534  do_return:
534   *  Prepare to run instructions on all CPUs in this machine. (This function   *  Prepare to run instructions on all CPUs in this machine. (This function
535   *  should only need to be called once for each machine.)   *  should only need to be called once for each machine.)
536   */   */
537  void cpu_run_init(struct emul *emul, struct machine *machine)  void cpu_run_init(struct machine *machine)
538  {  {
539          int ncpus = machine->ncpus;          int ncpus = machine->ncpus;
540          int te;          int te;
# Line 474  void cpu_run_init(struct emul *emul, str Line 567  void cpu_run_init(struct emul *emul, str
567    
568          /*  For performance measurement:  */          /*  For performance measurement:  */
569          gettimeofday(&machine->starttime, NULL);          gettimeofday(&machine->starttime, NULL);
570            machine->ncycles_since_gettimeofday = 0;
571  }  }
572    
573    
# Line 550  struct cpu_family *cpu_family_ptr_by_num Line 644  struct cpu_family *cpu_family_ptr_by_num
644  void cpu_init(void)  void cpu_init(void)
645  {  {
646          /*  Note: These are registered in alphabetic order.  */          /*  Note: These are registered in alphabetic order.  */
647    
648    #ifdef ENABLE_ALPHA
649          add_cpu_family(alpha_cpu_family_init, ARCH_ALPHA);          add_cpu_family(alpha_cpu_family_init, ARCH_ALPHA);
650          add_cpu_family(hppa_cpu_family_init, ARCH_HPPA);  #endif
651    
652    #ifdef ENABLE_ARM
653            add_cpu_family(arm_cpu_family_init, ARCH_ARM);
654    #endif
655    
656    #ifdef ENABLE_IA64
657            add_cpu_family(ia64_cpu_family_init, ARCH_IA64);
658    #endif
659    
660    #ifdef ENABLE_M68K
661            add_cpu_family(m68k_cpu_family_init, ARCH_M68K);
662    #endif
663    
664    #ifdef ENABLE_MIPS
665          add_cpu_family(mips_cpu_family_init, ARCH_MIPS);          add_cpu_family(mips_cpu_family_init, ARCH_MIPS);
666    #endif
667    
668    #ifdef ENABLE_PPC
669          add_cpu_family(ppc_cpu_family_init, ARCH_PPC);          add_cpu_family(ppc_cpu_family_init, ARCH_PPC);
670    #endif
671    
672    #ifdef ENABLE_SPARC
673          add_cpu_family(sparc_cpu_family_init, ARCH_SPARC);          add_cpu_family(sparc_cpu_family_init, ARCH_SPARC);
674          add_cpu_family(urisc_cpu_family_init, ARCH_URISC);  #endif
675    
676    #ifdef ENABLE_X86
677          add_cpu_family(x86_cpu_family_init, ARCH_X86);          add_cpu_family(x86_cpu_family_init, ARCH_X86);
678    #endif
679  }  }
680    
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