/*
* Called on the boot CPU during startup.
*/
void
kcpc_hw_init(void)
{
if (cpc_has_overflow_intr) {
cpc_level15_inum = add_softintr(PIL_15,
kcpc_hw_overflow_intr, NULL, SOFTINT_MT);
}
/*
* Make sure the boot CPU gets set up.
*/
kcpc_hw_startup_cpu(CPU->cpu_flags);
}
/*
* Startup function executed on 'other' CPUs. This is the first
* C function after cpu_start sets up the cpu registers.
*/
static void
slave_startup(void)
{
struct cpu *cp = CPU;
ushort_t original_flags = cp->cpu_flags;
mach_htraptrace_configure(cp->cpu_id);
cpu_intrq_register(CPU);
cp->cpu_m.mutex_ready = 1;
/* acknowledge that we are done with initialization */
CPUSET_ADD(proxy_ready_set, cp->cpu_id);
/* synchronize STICK */
sticksync_slave();
if (boothowto & RB_DEBUG)
kdi_dvec_cpu_init(cp);
/*
* the slave will wait here forever -- assuming that the master
* will get back to us. if it doesn't we've got bigger problems
* than a master not replying to this slave.
* the small delay improves the slave's responsiveness to the
* master's ack and decreases the time window between master and
* slave operations.
*/
while (!CPU_IN_SET(cpu_ready_set, cp->cpu_id))
DELAY(1);
/*
* The CPU is now in cpu_ready_set, safely able to take pokes.
*/
cp->cpu_m.poke_cpu_outstanding = B_FALSE;
/* enable interrupts */
(void) spl0();
/*
* Signature block update to indicate that this CPU is in OS now.
* This needs to be done after the PIL is lowered since on
* some platforms the update code may block.
*/
CPU_SIGNATURE(OS_SIG, SIGST_RUN, SIGSUBST_NULL, cp->cpu_id);
/*
* park the slave thread in a safe/quiet state and wait for the master
* to finish configuring this CPU before proceeding to thread_exit().
*/
while (((volatile ushort_t)cp->cpu_flags) & CPU_QUIESCED)
DELAY(1);
/*
* Initialize CPC CPU state.
*/
kcpc_hw_startup_cpu(original_flags);
/*
* Notify the PG subsystem that the CPU has started
*/
pg_cmt_cpu_startup(CPU);
/*
* Now we are done with the startup thread, so free it up.
*/
thread_exit();
cmn_err(CE_PANIC, "slave_startup: cannot return");
/*NOTREACHED*/
}
