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Kernel: Set up and calibrate APIC timer, and enable timer on all CPUs

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This enables the APIC timer on all CPUs, which means Scheduler::timer_tick
is now called on all CPUs independently. We still don't do anything on
the APs as it instantly crashes due to a number of other problems.
This commit is contained in:
Tom 2020-10-25 09:13:47 -06:00 • committed by Andreas Kling
parent 9d347352a1
commit fe615e601a
14 changed files with 478 additions and 70 deletions
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Kernel/Time/PIT.h
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@ -52,7 +52,7 @@ namespace Kernel {
#define BASE_FREQUENCY 1193182
class PIT final : public HardwareTimer {
class PIT final : public HardwareTimer<IRQHandler> {
public:
static NonnullRefPtr<PIT> initialize(Function<void(const RegisterState&)>);
virtual HardwareTimerType timer_type() const override { return HardwareTimerType::i8253; }