/*
* Determine which Sun2 model we are running on.
*
* XXX: Just save idprom.idp_machtype here, and
* XXX: move the rest of this to identifycpu().
* XXX: Move cache_size stuff to cache.c.
*/
static void
_verify_hardware(void)
{
unsigned char machtype;
int cpu_match = 0;
machtype = identity_prom.idp_machtype;
if ((machtype & IDM_ARCH_MASK) != IDM_ARCH_SUN2) {
prom_printf("Bad IDPROM arch!\n");
prom_abort();
}
cpu_machine_id = machtype;
switch (cpu_machine_id) {
case ID_SUN2_120 :
cpu_match++;
cpu_string = "{120,170}";
delay_divisor = 205; /* 10 MHz */
cpu_has_multibus = true;
break;
case ID_SUN2_50 :
cpu_match++;
cpu_string = "50";
delay_divisor = 205; /* 10 MHz */
cpu_has_vme = true;
break;
default:
prom_printf("unknown sun2 model\n");
prom_abort();
}
if (!cpu_match) {
prom_printf("kernel not configured for the Sun 2 model\n");
prom_abort();
}
}
/*
* This is used if we hit a kernel breakpoint or trace trap
* when there is no debugger installed (or not attached).
* Drop into the PROM temporarily...
*/
int
_nodb_trap(int type, struct trapframe *tf)
{
printf("\r\nKernel ");
if ((0 <= type) && (type < trap_types))
printf("%s", trap_type[type]);
else
printf("trap 0x%x", type);
printf(", frame=%p\r\n", tf);
printf("No debugger; doing PROM abort.\r\n");
printf("To continue, type: c <RETURN>\r\n");
prom_abort();
/* OK then, just resume... */
tf->tf_sr &= ~PSL_T;
return(1);
}
/*
* kdb_trap - field a TRACE or BPT trap
*/
int
kdb_trap(int type, struct trapframe64 *tf)
{
int s;
extern int trap_trace_dis;
extern int doing_shutdown;
trap_trace_dis++;
doing_shutdown++;
#if NFB > 0
fb_unblank();
#endif
switch (type) {
case T_BREAKPOINT: /* breakpoint */
break;
case -1: /* keyboard interrupt */
printf("kdb tf=%p\n", tf);
break;
default:
if (!db_onpanic && db_recover==0)
return (0);
printf("kernel trap %x: %s\n", type, trap_type[type & 0x1ff]);
if (db_recover != 0) {
prom_abort();
db_error("Faulted in DDB; continuing...\n");
prom_abort();
/*NOTREACHED*/
}
db_recover = (label_t *)1;
}
/* Should switch to kdb`s own stack here. */
write_all_windows();
#if defined(MULTIPROCESSOR)
if (!db_suspend_others()) {
ddb_suspend(tf);
return 1;
}
#endif
/* Initialise local dbregs storage from trap frame */
fill_ddb_regs_from_tf(tf);
s = splhigh();
db_active++;
cnpollc(TRUE);
/* Need to do spl stuff till cnpollc works */
db_dump_ts(0, 0, 0, 0);
db_trap(type, 0/*code*/);
ddb_restore_state();
cnpollc(FALSE);
db_active--;
splx(s);
*tf = DDB_REGS->db_tf;
curcpu()->ci_ddb_regs = NULL;
trap_trace_dis--;
doing_shutdown--;
#if defined(MULTIPROCESSOR)
db_resume_others();
#endif
return (1);
}
void
db_prom_cmd(db_expr_t addr, bool have_addr, db_expr_t count, const char *modif)
{
prom_abort();
}
