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| author | Thomas Gleixner <tglx@linutronix.de> | 2007-10-17 18:04:32 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@inhelltoy.tec.linutronix.de> | 2007-10-17 20:15:13 +0200 |
| commit | 3dfbc88464934fb6924a388bc03961d44f387926 (patch) | |
| tree | 3ddb9a50bb2df909d6e629783bd41301541feceb /kernel/time/tick-broadcast.c | |
| parent | e6d5a11dad44b8ae18ca8fc4ecb72ccccfa0a2d2 (diff) | |
| download | op-kernel-dev-3dfbc88464934fb6924a388bc03961d44f387926.zip op-kernel-dev-3dfbc88464934fb6924a388bc03961d44f387926.tar.gz | |
x86: C1E late detection fix. Really switch off lapic timer
Doh, I completely missed that devices marked DUMMY are not running
the set_mode function. So we force broadcasting, but we keep the
local APIC timer running.
Let the clock event layer mark the device _after_ switching it off.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/time/tick-broadcast.c')
| -rw-r--r-- | kernel/time/tick-broadcast.c | 18 |
1 files changed, 4 insertions, 14 deletions
diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c index fab9dd8..8cfb8b2 100644 --- a/kernel/time/tick-broadcast.c +++ b/kernel/time/tick-broadcast.c @@ -222,20 +222,8 @@ static void tick_do_broadcast_on_off(void *why) if (!dev || !(dev->features & CLOCK_EVT_FEAT_C3STOP)) goto out; - /* - * Defect device ? - */ - if (!tick_device_is_functional(dev)) { - /* - * AMD C1E wreckage fixup: - * - * Device was registered functional in the first - * place. Now the secondary CPU detected the C1E - * misfeature and notifies us to fix it up - */ - if (*reason != CLOCK_EVT_NOTIFY_BROADCAST_FORCE) - goto out; - } + if (!tick_device_is_functional(dev)) + goto out; switch (*reason) { case CLOCK_EVT_NOTIFY_BROADCAST_ON: @@ -246,6 +234,8 @@ static void tick_do_broadcast_on_off(void *why) clockevents_set_mode(dev, CLOCK_EVT_MODE_SHUTDOWN); } + if (*reason == CLOCK_EVT_NOTIFY_BROADCAST_FORCE) + dev->features |= CLOCK_EVT_FEAT_DUMMY; break; case CLOCK_EVT_NOTIFY_BROADCAST_OFF: if (cpu_isset(cpu, tick_broadcast_mask)) { |
