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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2005-11-02 23:24:33 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2005-11-02 23:24:33 +0100 |
| commit | a054a811597a17ffbe92bc4db04a4dc2f1b1ea55 (patch) | |
| tree | b600081d964d6fe7cc1cfe2669a739da0e1743f4 /arch/arm/kernel/process.c | |
| parent | [ARM SMP] Fix a couple of warnings (diff) | |
| download | linux-a054a811597a17ffbe92bc4db04a4dc2f1b1ea55.tar.xz linux-a054a811597a17ffbe92bc4db04a4dc2f1b1ea55.zip | |
[ARM SMP] Add hotplug CPU infrastructure
This patch adds the infrastructure to support hotplug CPU on ARM
platforms.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/kernel/process.c')
| -rw-r--r-- | arch/arm/kernel/process.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c index 409db6d5ec99..ba298277becd 100644 --- a/arch/arm/kernel/process.c +++ b/arch/arm/kernel/process.c @@ -26,6 +26,7 @@ #include <linux/interrupt.h> #include <linux/kallsyms.h> #include <linux/init.h> +#include <linux/cpu.h> #include <asm/system.h> #include <asm/io.h> @@ -105,6 +106,14 @@ void cpu_idle(void) /* endless idle loop with no priority at all */ while (1) { void (*idle)(void) = pm_idle; + +#ifdef CONFIG_HOTPLUG_CPU + if (cpu_is_offline(smp_processor_id())) { + leds_event(led_idle_start); + cpu_die(); + } +#endif + if (!idle) idle = default_idle; preempt_disable(); |