xiaomi-sm8450/android_kernel_xiaomi_sm8450
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Merge branches 'amba', 'devel-stable', 'fixes', 'mach-types', 'mmci', 'pci' and 'versatile' into for-linus

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Russell King
2012-05-21 15:15:10 +01:00
parent dfb85185bd 5693188a6e 56cb248428 d098bc7d58 34fd421349 90cf2418f5 d12379acaf
commit ddf90a2ff2
630 changed files with 5994 additions and 3849 deletions
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35
arch/arm/kernel/smp.c
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@@ -251,8 +251,6 @@ asmlinkage void __cpuinit secondary_start_kernel(void)
struct mm_struct *mm = &init_mm;
unsigned int cpu = smp_processor_id();
printk("CPU%u: Booted secondary processor\n", cpu);
/*
* All kernel threads share the same mm context; grab a
* reference and switch to it.
@@ -264,6 +262,8 @@ asmlinkage void __cpuinit secondary_start_kernel(void)
enter_lazy_tlb(mm, current);
local_flush_tlb_all();
printk("CPU%u: Booted secondary processor\n", cpu);
cpu_init();
preempt_disable();
trace_hardirqs_off();
@@ -454,6 +454,9 @@ static struct local_timer_ops *lt_ops;
#ifdef CONFIG_LOCAL_TIMERS
int local_timer_register(struct local_timer_ops *ops)
{
if (!is_smp() || !setup_max_cpus)
return -ENXIO;
if (lt_ops)
return -EBUSY;
@@ -510,10 +513,6 @@ static void ipi_cpu_stop(unsigned int cpu)
local_fiq_disable();
local_irq_disable();
#ifdef CONFIG_HOTPLUG_CPU
platform_cpu_kill(cpu);
#endif
while (1)
cpu_relax();
}
@@ -576,17 +575,25 @@ void smp_send_reschedule(int cpu)
smp_cross_call(cpumask_of(cpu), IPI_RESCHEDULE);
}
#ifdef CONFIG_HOTPLUG_CPU
static void smp_kill_cpus(cpumask_t *mask)
{
unsigned int cpu;
for_each_cpu(cpu, mask)
platform_cpu_kill(cpu);
}
#else
static void smp_kill_cpus(cpumask_t *mask) { }
#endif
void smp_send_stop(void)
{
unsigned long timeout;
struct cpumask mask;
if (num_online_cpus() > 1) {
struct cpumask mask;
cpumask_copy(&mask, cpu_online_mask);
cpumask_clear_cpu(smp_processor_id(), &mask);
smp_cross_call(&mask, IPI_CPU_STOP);
}
cpumask_copy(&mask, cpu_online_mask);
cpumask_clear_cpu(smp_processor_id(), &mask);
smp_cross_call(&mask, IPI_CPU_STOP);
/* Wait up to one second for other CPUs to stop */
timeout = USEC_PER_SEC;
@@ -595,6 +602,8 @@ void smp_send_stop(void)
if (num_online_cpus() > 1)
pr_warning("SMP: failed to stop secondary CPUs\n");
smp_kill_cpus(&mask);
}
/*