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authorThomas Gleixner <tglx@linutronix.de>2007-10-14 22:57:45 +0200
committerThomas Gleixner <tglx@inhelltoy.tec.linutronix.de>2007-10-14 22:57:45 +0200
commit1595f452f3d8daa066bfd3ba4120754bed3329e1 (patch)
tree86fa49114c03e0f2dc7c7987b2a5be6adace140f /kernel/time/tick-common.c
parentb097976e8d6f6e6220161fa6b72b0798ce9f4f4c (diff)
clockevents: introduce force broadcast notifier
The 64bit SMP bootup is slightly different to the 32bit one. It enables the boot CPU local APIC timer before all CPUs are brought up. Some AMD C1E systems have the C1E feature flag only set in the secondary CPU. Due to the early enable of the boot CPU local APIC timer the APIC timer is registered as a fully functional device. When we detect the wreckage during the bringup of the secondary CPU, we need to force the boot CPU into broadcast mode. Add a new notifier reason and implement the force broadcast in the clock events layer. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/time/tick-common.c')
-rw-r--r--kernel/time/tick-common.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/time/tick-common.c b/kernel/time/tick-common.c
index 3f3ae390783..1bea399a9ef 100644
--- a/kernel/time/tick-common.c
+++ b/kernel/time/tick-common.c
@@ -345,6 +345,7 @@ static int tick_notify(struct notifier_block *nb, unsigned long reason,
case CLOCK_EVT_NOTIFY_BROADCAST_ON:
case CLOCK_EVT_NOTIFY_BROADCAST_OFF:
+ case CLOCK_EVT_NOTIFY_BROADCAST_FORCE:
tick_broadcast_on_off(reason, dev);
break;