63 lines
1.3 KiB
ArmAsm
63 lines
1.3 KiB
ArmAsm
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// TITLE("Processor Idle Support")
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//++
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//
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// Copyright (c) 1992 Digital Equipment Corporation
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// Copyright (c) 1993 Digital Equipment Corporation
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//
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// Module Name:
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//
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// idle.s
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//
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// Abstract:
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//
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// This module implements the HalProcessorIdle interface
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//
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// Author:
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//
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// John Vert (jvert) 11-May-1994
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//
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// Environment:
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//
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// Revision History:
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//
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//--
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#include "halalpha.h"
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SBTTL("Processor Idle")
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//++
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//
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// VOID
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// HalProcessorIdle(
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// VOID
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// )
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//
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// Routine Description:
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//
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// This function is called when the current processor is idle with
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// interrupts disabled. There is no thread active and there are no
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// DPCs to process. Therefore, power can be switched to a standby
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// mode until the the next interrupt occurs on the current processor.
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//
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// N.B. This routine is entered with interrupts disabled. This routine
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// must do any power management enabling necessary, enable interrupts,
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// then either return or wait for an interrupt.
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//
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// Arguments:
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//
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// None.
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//
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// Return Value:
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//
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// None.
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//
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//--
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LEAF_ENTRY(HalProcessorIdle)
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ENABLE_INTERRUPTS // no power management, just
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// enable interrupts and return
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ret zero, (ra)
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.end HalProcessorIdle
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