51 lines
1.2 KiB
C
51 lines
1.2 KiB
C
/**
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* PROJECT: ExectOS
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* COPYRIGHT: See COPYING.md in the top level directory
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* FILE: xtoskrnl/po/idle.c
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* DESCRIPTION: Processor idle functionality support
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* DEVELOPERS: Rafal Kupiec <belliash@codingworkshop.eu.org>
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*/
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#include <xtos.h>
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/**
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* Initializes Processor Control Block's (PRCB) power state structures.
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*
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* @param Prcb
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* Supplies a pointer to the PRCB being initialized.
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*
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* @return This routine does not return any value.
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*
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* @since XT 1.0
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*/
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XTAPI
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VOID
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PoInitializeProcessorControlBlock(IN OUT PKPROCESSOR_CONTROL_BLOCK Prcb)
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{
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RtlZeroMemory(&Prcb->PowerState, sizeof(Prcb->PowerState));
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Prcb->PowerState.Idle0TimeLimit = 0xFFFFFFFF;
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Prcb->PowerState.CurrentThrottle = 100;
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Prcb->PowerState.IdleFunction = PopIdle0Function;
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KeInitializeTimerEx(&Prcb->PowerState.PerfTimer, SynchronizationTimer);
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}
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/**
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* Processor idle loop routine.
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*
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* @param PowerState
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* Supplies a pointer to the structere containing current processor power state.
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*
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* @return This routine does not return any value.
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*
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* @since XT 1.0
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*/
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XTFASTCALL
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VOID
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PopIdle0Function(IN PPROCESSOR_POWER_STATE PowerState)
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{
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UNIMPLEMENTED;
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}
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