static SIM_RC
scache_init (SIM_DESC sd)
{
int c;
for (c = 0; c < MAX_NR_PROCESSORS; ++c)
{
SIM_CPU *cpu = STATE_CPU (sd, c);
int elm_size = IMP_PROPS_SCACHE_ELM_SIZE (MACH_IMP_PROPS (CPU_MACH (cpu)));
/* elm_size is 0 if the cpu doesn't not have scache support */
if (elm_size == 0)
{
CPU_SCACHE_SIZE (cpu) = 0;
CPU_SCACHE_CACHE (cpu) = NULL;
}
else
{
if (CPU_SCACHE_SIZE (cpu) == 0)
CPU_SCACHE_SIZE (cpu) = STATE_SCACHE_SIZE (sd);
CPU_SCACHE_CACHE (cpu) =
(SCACHE *) xmalloc (CPU_SCACHE_SIZE (cpu) * elm_size);
#if WITH_SCACHE_PBB
CPU_SCACHE_MAX_CHAIN_LENGTH (cpu) = MAX_CHAIN_LENGTH;
CPU_SCACHE_NUM_HASH_CHAIN_ENTRIES (cpu) = MAX_HASH_CHAIN_LENGTH;
CPU_SCACHE_NUM_HASH_CHAINS (cpu) = max (MIN_HASH_CHAINS,
CPU_SCACHE_SIZE (cpu)
/ SCACHE_HASH_RATIO);
CPU_SCACHE_HASH_TABLE (cpu) =
(SCACHE_MAP *) xmalloc (CPU_SCACHE_NUM_HASH_CHAINS (cpu)
* CPU_SCACHE_NUM_HASH_CHAIN_ENTRIES (cpu)
* sizeof (SCACHE_MAP));
CPU_SCACHE_PBB_BEGIN (cpu) = (SCACHE *) zalloc (elm_size);
CPU_SCACHE_CHAIN_LENGTHS (cpu) =
(unsigned long *) zalloc ((CPU_SCACHE_MAX_CHAIN_LENGTH (cpu) + 1)
* sizeof (long));
#endif
}
}
scache_flush (sd);
return SIM_RC_OK;
}
void
sim_resume (SIM_DESC sd, int step, int siggnal)
{
sim_engine *engine = STATE_ENGINE (sd);
jmp_buf buf;
int jmpval;
ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
/* we only want to be single stepping the simulator once */
if (engine->stepper != NULL)
{
sim_events_deschedule (sd, engine->stepper);
engine->stepper = NULL;
}
if (step)
engine->stepper = sim_events_schedule (sd, 1, has_stepped, sd);
sim_module_resume (sd);
#if WITH_SCACHE
if (USING_SCACHE_P (sd))
scache_flush (sd);
#endif
/* run/resume the simulator */
sim_engine_set_run_state (sd, sim_running, 0);
engine->jmpbuf = &buf;
jmpval = setjmp (buf);
if (jmpval == sim_engine_start_jmpval
|| jmpval == sim_engine_restart_jmpval)
{
int last_cpu_nr = sim_engine_last_cpu_nr (sd);
int next_cpu_nr = sim_engine_next_cpu_nr (sd);
int nr_cpus = sim_engine_nr_cpus (sd);
/* ??? Setting max_insns to 0 allows pbb/jit code to run wild and is
useful if all one wants to do is run a benchmark. Need some better
way to identify this case. */
int max_insns = (step
? 1
: (nr_cpus == 1
/*&& wip:no-events*/
/* Don't do this if running under gdb, need to
poll ui for events. */
&& STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE)
? 0
: 8); /*FIXME: magic number*/
int fast_p = STATE_RUN_FAST_P (sd);
sim_events_preprocess (sd, last_cpu_nr >= nr_cpus, next_cpu_nr >= nr_cpus);
if (next_cpu_nr >= nr_cpus)
next_cpu_nr = 0;
if (nr_cpus == 1)
engine_run_1 (sd, max_insns, fast_p);
else
engine_run_n (sd, next_cpu_nr, nr_cpus, max_insns, fast_p);
}
#if 1 /*wip*/
else
{
/* Account for the last insn executed. */
SIM_CPU *cpu = STATE_CPU (sd, sim_engine_last_cpu_nr (sd));
++ CPU_INSN_COUNT (cpu);
CGEN_TRACE_INSN_FINI (cpu, NULL, 1);
}
#endif
engine->jmpbuf = NULL;
{
int i;
int nr_cpus = sim_engine_nr_cpus (sd);
#if 0 /*wip,ignore*/
/* If the loop exits, either we single-stepped or @cpu@_engine_stop
was called. */
if (step)
sim_engine_set_run_state (sd, sim_stopped, SIM_SIGTRAP);
else
sim_engine_set_run_state (sd, pending_reason, pending_sigrc);
#endif
for (i = 0; i < nr_cpus; ++i)
{
SIM_CPU *cpu = STATE_CPU (sd, i);
PROFILE_TOTAL_INSN_COUNT (CPU_PROFILE_DATA (cpu)) += CPU_INSN_COUNT (cpu);
}
}
sim_module_suspend (sd);
}
