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Reduce the diff for when we switch to intrng. The IPI interrupts will be

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split out to multiple handlers.

Obtained from:	ABT Systems Ltd
Sponsored by:	The FreeBSD Foundation
This commit is contained in:
Andrew Turner 2016-04-04 15:13:17 +00:00
parent 6b42a1f4c0
commit bc5a80161c
1 changed files with 63 additions and 20 deletions
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83
sys/arm64/arm64/mp_machdep.c
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@ -80,6 +80,12 @@ static device_identify_t arm64_cpu_identify;
static device_probe_t arm64_cpu_probe;
static device_attach_t arm64_cpu_attach;
static void ipi_ast(void *);
static void ipi_hardclock(void *);
static void ipi_preempt(void *);
static void ipi_rendezvous(void *);
static void ipi_stop(void *);
static int ipi_handler(void *arg);
struct mtx ap_boot_mtx;
@ -271,6 +277,58 @@ init_secondary(uint64_t cpu)
/* NOTREACHED */
}
static void
ipi_ast(void *dummy __unused)
{
CTR0(KTR_SMP, "IPI_AST");
}
static void
ipi_hardclock(void *dummy __unused)
{
CTR1(KTR_SMP, "%s: IPI_HARDCLOCK", __func__);
hardclockintr();
}
static void
ipi_preempt(void *dummy __unused)
{
CTR1(KTR_SMP, "%s: IPI_PREEMPT", __func__);
sched_preempt(curthread);
}
static void
ipi_rendezvous(void *dummy __unused)
{
CTR0(KTR_SMP, "IPI_RENDEZVOUS");
smp_rendezvous_action();
}
static void
ipi_stop(void *dummy __unused)
{
u_int cpu;
CTR0(KTR_SMP, "IPI_STOP");
cpu = PCPU_GET(cpuid);
savectx(&stoppcbs[cpu]);
/* Indicate we are stopped */
CPU_SET_ATOMIC(cpu, &stopped_cpus);
/* Wait for restart */
while (!CPU_ISSET(cpu, &started_cpus))
cpu_spinwait();
CPU_CLR_ATOMIC(cpu, &started_cpus);
CPU_CLR_ATOMIC(cpu, &stopped_cpus);
CTR0(KTR_SMP, "IPI_STOP (restart)");
}
static int
ipi_handler(void *arg)
{
@ -285,35 +343,20 @@ ipi_handler(void *arg)
switch(ipi) {
case IPI_AST:
CTR0(KTR_SMP, "IPI_AST");
ipi_ast(NULL);
break;
case IPI_PREEMPT:
CTR1(KTR_SMP, "%s: IPI_PREEMPT", __func__);
sched_preempt(curthread);
ipi_preempt(NULL);
break;
case IPI_RENDEZVOUS:
CTR0(KTR_SMP, "IPI_RENDEZVOUS");
smp_rendezvous_action();
ipi_rendezvous(NULL);
break;
case IPI_STOP:
case IPI_STOP_HARD:
CTR0(KTR_SMP, (ipi == IPI_STOP) ? "IPI_STOP" : "IPI_STOP_HARD");
savectx(&stoppcbs[cpu]);
/* Indicate we are stopped */
CPU_SET_ATOMIC(cpu, &stopped_cpus);
/* Wait for restart */
while (!CPU_ISSET(cpu, &started_cpus))
cpu_spinwait();
CPU_CLR_ATOMIC(cpu, &started_cpus);
CPU_CLR_ATOMIC(cpu, &stopped_cpus);
CTR0(KTR_SMP, "IPI_STOP (restart)");
ipi_stop(NULL);
break;
case IPI_HARDCLOCK:
CTR1(KTR_SMP, "%s: IPI_HARDCLOCK", __func__);
hardclockintr();
ipi_hardclock(NULL);
break;
default:
panic("Unknown IPI %#0x on cpu %d", ipi, curcpu);