/*
* Pause cpu. This is called from locore.s after setting up a trapframe.
*/
void
sparc64_ipi_pause_thiscpu(void *arg)
{
int s;
#if defined(DDB)
extern void fill_ddb_regs_from_tf(struct trapframe64 *tf);
extern void ddb_restore_state(void);
if (arg)
fill_ddb_regs_from_tf(arg);
#endif
s = intr_disable();
sparc64_do_pause();
#if defined(DDB)
if (arg) {
ddb_restore_state();
curcpu()->ci_ddb_regs = NULL;
}
#endif
intr_restore(s);
}
/*
* 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);
}
