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| author | Kukjin Kim <kgene.kim@samsung.com> | 2012-05-13 07:53:34 +0900 |
|---|---|---|
| committer | Kukjin Kim <kgene.kim@samsung.com> | 2012-05-13 07:53:34 +0900 |
| commit | 163ec0369be4c26e68385f6cec88d0ee38c8d8e5 (patch) | |
| tree | f3e441866f8bc1b0548e7d8eddd9548b6aedef5e /arch/arm/kernel/smp.c | |
| parent | 199642bfe107c411f25fbfc16c9fd49cfef9785d (diff) | |
| parent | 99dbdd98f271899e023d52b3f4c2bf67cdd7eb56 (diff) | |
| download | kernel_goldelico_gta04-163ec0369be4c26e68385f6cec88d0ee38c8d8e5.zip kernel_goldelico_gta04-163ec0369be4c26e68385f6cec88d0ee38c8d8e5.tar.gz kernel_goldelico_gta04-163ec0369be4c26e68385f6cec88d0ee38c8d8e5.tar.bz2 | |
Merge branch 'next/cleanup-plat-s3c24xx' into next/cleanup-plat-s3c24xx-s5p
Diffstat (limited to 'arch/arm/kernel/smp.c')
| -rw-r--r-- | arch/arm/kernel/smp.c | 29 |
1 files changed, 18 insertions, 11 deletions
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index 2cee7d1..f6a4d32 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -349,7 +349,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus) * re-initialize the map in platform_smp_prepare_cpus() if * present != possible (e.g. physical hotplug). */ - init_cpu_present(&cpu_possible_map); + init_cpu_present(cpu_possible_mask); /* * Initialise the SCU if there are more than one CPU @@ -510,10 +510,6 @@ 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(); } @@ -576,16 +572,25 @@ 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) { - cpumask_t mask = cpu_online_map; - cpu_clear(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; @@ -594,6 +599,8 @@ void smp_send_stop(void) if (num_online_cpus() > 1) pr_warning("SMP: failed to stop secondary CPUs\n"); + + smp_kill_cpus(&mask); } /* |