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-rw-r--r--arch/mips/Kconfig1
-rw-r--r--arch/mips/kernel/process.c48
-rw-r--r--arch/mips/kernel/smp.c2
3 files changed, 17 insertions, 34 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 51244bf97271..e1a3d02af637 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -34,6 +34,7 @@ config MIPS
select HAVE_MEMBLOCK_NODE_MAP
select ARCH_DISCARD_MEMBLOCK
select GENERIC_SMP_IDLE_THREAD
+ select GENERIC_IDLE_LOOP
select BUILDTIME_EXTABLE_SORT
select GENERIC_CLOCKEVENTS
select GENERIC_CMOS_UPDATE
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index 3be4405c2d14..cfc742d75b7f 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -41,44 +41,26 @@
#include <asm/inst.h>
#include <asm/stacktrace.h>
-/*
- * The idle thread. There's no useful work to be done, so just try to conserve
- * power and have a low exit latency (ie sit in a loop waiting for somebody to
- * say that they'd like to reschedule)
- */
-void __noreturn cpu_idle(void)
+#ifdef CONFIG_HOTPLUG_CPU
+void arch_cpu_idle_dead(void)
{
- int cpu;
-
- /* CPU is going idle. */
- cpu = smp_processor_id();
+ /* What the heck is this check doing ? */
+ if (!cpu_isset(smp_processor_id(), cpu_callin_map))
+ play_dead();
+}
+#endif
- /* endless idle loop with no priority at all */
- while (1) {
- tick_nohz_idle_enter();
- rcu_idle_enter();
- while (!need_resched() && cpu_online(cpu)) {
+void arch_cpu_idle(void)
+{
#ifdef CONFIG_MIPS_MT_SMTC
- extern void smtc_idle_loop_hook(void);
+ extern void smtc_idle_loop_hook(void);
- smtc_idle_loop_hook();
+ smtc_idle_loop_hook();
#endif
-
- if (cpu_wait) {
- /* Don't trace irqs off for idle */
- stop_critical_timings();
- (*cpu_wait)();
- start_critical_timings();
- }
- }
-#ifdef CONFIG_HOTPLUG_CPU
- if (!cpu_online(cpu) && !cpu_isset(cpu, cpu_callin_map))
- play_dead();
-#endif
- rcu_idle_exit();
- tick_nohz_idle_exit();
- schedule_preempt_disabled();
- }
+ if (cpu_wait)
+ (*cpu_wait)();
+ else
+ local_irq_enable();
}
asmlinkage void ret_from_fork(void);
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index 66bf4e22d9b9..aee04af213c5 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -139,7 +139,7 @@ asmlinkage __cpuinit void start_secondary(void)
WARN_ON_ONCE(!irqs_disabled());
mp_ops->smp_finish();
- cpu_idle();
+ cpu_startup_entry(CPUHP_ONLINE);
}
/*