Differential D587 Diff 1046 sys/arm/arm/mp_machdep.c

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sys/arm/arm/mp_machdep.c

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#ifdef IPI_IRQ_END		#ifdef IPI_IRQ_END
end = IPI_IRQ_END;		end = IPI_IRQ_END;
#else		#else
end = IPI_IRQ_START;		end = IPI_IRQ_START;
#endif		#endif
#endif		#endif

for (int i = start; i <= end; i++)		for (int i = start; i <= end; i++)
arm_unmask_irq(i);		arm_unmask_ipi(i);
enable_interrupts(I32_bit);		enable_interrupts(I32_bit);

loop_counter = 0;		loop_counter = 0;
while (smp_started == 0) {		while (smp_started == 0) {
DELAY(100);		DELAY(100);
loop_counter++;		loop_counter++;
if (loop_counter == 1000)		if (loop_counter == 1000)
CTR0(KTR_SMP, "AP still wait for smp_started");		CTR0(KTR_SMP, "AP still wait for smp_started");
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static int		static int
ipi_handler(void *arg)		ipi_handler(void *arg)
{		{
u_int cpu, ipi;		u_int cpu, ipi;

cpu = PCPU_GET(cpuid);		cpu = PCPU_GET(cpuid);

ipi = pic_ipi_get((int)arg);		ipi = pic_ipi_read((int)arg);

while ((ipi != 0x3ff)) {		while ((ipi != 0x3ff)) {
switch (ipi) {		switch (ipi) {
case IPI_RENDEZVOUS:		case IPI_RENDEZVOUS:
CTR0(KTR_SMP, "IPI_RENDEZVOUS");		CTR0(KTR_SMP, "IPI_RENDEZVOUS");
smp_rendezvous_action();		smp_rendezvous_action();
break;		break;

▲ Show 20 Lines • Show All 46 Lines • ▼ Show 20 Lines	case IPI_TLB:
CTR1(KTR_SMP, "%s: IPI_TLB", __func__);		CTR1(KTR_SMP, "%s: IPI_TLB", __func__);
cpufuncs.cf_tlb_flushID();		cpufuncs.cf_tlb_flushID();
break;		break;
default:		default:
panic("Unknown IPI 0x%0x on cpu %d", ipi, curcpu);		panic("Unknown IPI 0x%0x on cpu %d", ipi, curcpu);
}		}

pic_ipi_clear(ipi);		pic_ipi_clear(ipi);
ipi = pic_ipi_get(-1);		ipi = pic_ipi_read(-1);
}		}

return (FILTER_HANDLED);		return (FILTER_HANDLED);
}		}

static void		static void
release_aps(void *dummy __unused)		release_aps(void *dummy __unused)
{		{
Show All 14 Lines	#endif
for (int i = start; i <= end; i++) {		for (int i = start; i <= end; i++) {
/*		/*
* IPI handler		* IPI handler
*/		*/
/*		/*
* Use 0xdeadbeef as the argument value for irq 0,		* Use 0xdeadbeef as the argument value for irq 0,
* if we used 0, the intr code will give the trap frame		* if we used 0, the intr code will give the trap frame
* pointer instead.		* pointer instead.
*/		*/
		andrewUnsubmitted Not Done Inline Actions This comment doesn't make sense, I see no 0xdeadbeef here. andrew: This comment doesn't make sense, I see no 0xdeadbeef here.
		jceelUnsubmitted Not Done Inline Actions Yes, that comment seems invalid. It is also present in head. jceel: Yes, that comment seems invalid. It is also present in head.
arm_setup_irqhandler("ipi", ipi_handler, NULL, (void *)i, i,		arm_setup_irqhandler((device_t)"ipi", ipi_handler, NULL, (void *)i, i,
INTR_TYPE_MISC \| INTR_EXCL, NULL);		INTR_TYPE_MISC \| INTR_EXCL \| INTR_IPI, NULL);

/* Enable ipi */		arm_unmask_ipi(i);
arm_unmask_irq(i);
}		}
atomic_store_rel_int(&aps_ready, 1);		atomic_store_rel_int(&aps_ready, 1);

printf("Release APs\n");		printf("Release APs\n");

for (loop_counter = 0; loop_counter < 2000; loop_counter++) {		for (loop_counter = 0; loop_counter < 2000; loop_counter++) {
if (smp_started)		if (smp_started)
return;		return;
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