Merge tag 'remove-local-timers' of git://git.kernel.org/pub/scm/linux/kernel/git...

[cascardo/linux.git] / arch / arm / kernel / smp.c

diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index c2b4f8f..3a98192 100644 (file)
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -41,7 +41,6 @@
 #include <asm/sections.h>
 #include <asm/tlbflush.h>
 #include <asm/ptrace.h>
-#include <asm/localtimer.h>
 #include <asm/smp_plat.h>
 #include <asm/virt.h>
 #include <asm/mach/arch.h>
@@ -146,8 +145,6 @@ int boot_secondary(unsigned int cpu, struct task_struct *idle)
 }
 
 #ifdef CONFIG_HOTPLUG_CPU
-static void percpu_timer_stop(void);
-
 static int platform_cpu_kill(unsigned int cpu)
 {
        if (smp_ops.cpu_kill)
@@ -190,11 +187,6 @@ int __cpu_disable(void)
         */
        migrate_irqs();
 
-       /*
-        * Stop the local timer for this CPU.
-        */
-       percpu_timer_stop();
-
        /*
         * Flush user cache and TLB mappings, and then remove this CPU
         * from the vm mask set of all processes.
@@ -316,8 +308,6 @@ static void smp_store_cpu_info(unsigned int cpuid)
        store_cpu_topology(cpuid);
 }
 
-static void percpu_timer_setup(void);
-
 /*
  * This is the secondary CPU boot entry.  We're using this CPUs
  * idle thread stack, but a set of temporary page tables.
@@ -372,11 +362,6 @@ asmlinkage void secondary_start_kernel(void)
        set_cpu_online(cpu, true);
        complete(&cpu_running);
 
-       /*
-        * Setup the percpu timer for this CPU.
-        */
-       percpu_timer_setup();
-
        local_irq_enable();
        local_fiq_enable();
 
@@ -422,12 +407,6 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
        if (max_cpus > ncores)
                max_cpus = ncores;
        if (ncores > 1 && max_cpus) {
-               /*
-                * Enable the local timer or broadcast device for the
-                * boot CPU, but only if we have more than one CPU.
-                */
-               percpu_timer_setup();
-
                /*
                 * Initialise the present map, which describes the set of CPUs
                 * actually populated at the present time. A platform should
@@ -504,11 +483,6 @@ u64 smp_irq_stat_cpu(unsigned int cpu)
        return sum;
 }
 
-/*
- * Timer (local or broadcast) support
- */
-static DEFINE_PER_CPU(struct clock_event_device, percpu_clockevent);
-
 #ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST
 void tick_broadcast(const struct cpumask *mask)
 {
@@ -516,67 +490,6 @@ void tick_broadcast(const struct cpumask *mask)
 }
 #endif
 
-static void broadcast_timer_set_mode(enum clock_event_mode mode,
-       struct clock_event_device *evt)
-{
-}
-
-static void broadcast_timer_setup(struct clock_event_device *evt)
-{
-       evt->name       = "dummy_timer";
-       evt->features   = CLOCK_EVT_FEAT_ONESHOT |
-                         CLOCK_EVT_FEAT_PERIODIC |
-                         CLOCK_EVT_FEAT_DUMMY;
-       evt->rating     = 100;
-       evt->mult       = 1;
-       evt->set_mode   = broadcast_timer_set_mode;
-
-       clockevents_register_device(evt);
-}
-
-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;
-
-       lt_ops = ops;
-       return 0;
-}
-#endif
-
-static void percpu_timer_setup(void)
-{
-       unsigned int cpu = smp_processor_id();
-       struct clock_event_device *evt = &per_cpu(percpu_clockevent, cpu);
-
-       evt->cpumask = cpumask_of(cpu);
-
-       if (!lt_ops || lt_ops->setup(evt))
-               broadcast_timer_setup(evt);
-}
-
-#ifdef CONFIG_HOTPLUG_CPU
-/*
- * The generic clock events code purposely does not stop the local timer
- * on CPU_DEAD/CPU_DEAD_FROZEN hotplug events, so we have to do it
- * manually here.
- */
-static void percpu_timer_stop(void)
-{
-       unsigned int cpu = smp_processor_id();
-       struct clock_event_device *evt = &per_cpu(percpu_clockevent, cpu);
-
-       if (lt_ops)
-               lt_ops->stop(evt);
-}
-#endif
-
 static DEFINE_RAW_SPINLOCK(stop_lock);
 
 /*