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Subject[RFC PATCH v3 12/12] sparc64: smp: use generic SMP stop common code
Date
Make sparc64 use the generic SMP-stop logic provided by common code
unified smp_send_stop() function.

Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
---
arch/sparc/Kconfig | 1 +
arch/sparc/kernel/smp_64.c | 15 ++++++++-------
2 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index eb24cb1afc11..9fedb79209d7 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -95,6 +95,7 @@ config SPARC64
select ARCH_HAS_PTE_SPECIAL
select PCI_DOMAINS if PCI
select ARCH_HAS_GIGANTIC_PAGE
+ select ARCH_USE_COMMON_SMP_STOP

config ARCH_DEFCONFIG
string
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index 9b4506373353..87a9f3c96193 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -1537,7 +1537,12 @@ static void stop_this_cpu(void *dummy)
prom_stopself();
}

-void smp_send_stop(void)
+void arch_smp_cpus_stop_complete(void)
+{
+ smp_call_function(stop_this_cpu, NULL, 0);
+}
+
+void arch_smp_stop_call(cpumask_t *cpus, unsigned int __unused)
{
int cpu;

@@ -1546,10 +1551,7 @@ void smp_send_stop(void)
#ifdef CONFIG_SERIAL_SUNHV
sunhv_migrate_hvcons_irq(this_cpu);
#endif
- for_each_online_cpu(cpu) {
- if (cpu == this_cpu)
- continue;
-
+ for_each_cpu(cpu, cpus) {
set_cpu_online(cpu, false);
#ifdef CONFIG_SUN_LDOMS
if (ldom_domaining_enabled) {
@@ -1562,8 +1564,7 @@ void smp_send_stop(void)
#endif
prom_stopcpu_cpuid(cpu);
}
- } else
- smp_call_function(stop_this_cpu, NULL, 0);
+ }
}

/**
--
2.17.1
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