88 lines
1.2 KiB
C
88 lines
1.2 KiB
C
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/*++
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Copyright (c) 1995 DeskStation Technology
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Module Name:
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arcssup.c
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Abstract:
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This module allocates resources before a call to the ARCS Firmware, and
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frees those reources after the call returns.
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Author:
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Michael D. Kinney 30-Apr-1995
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Environment:
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Kernel mode
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Revision History:
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--*/
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#include "halp.h"
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static KIRQL HalpArcsIrql;
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VOID
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HalpAllocateArcsResources (
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VOID
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)
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/*++
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Routine Description:
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This routine allocated resources required before an ARCS Firmware call is made.
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On an ALPHA system, this is a NULL function.
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Arguments:
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None.
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Return Value:
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None.
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--*/
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{
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if (HalpIoArchitectureType != EV5_PROCESSOR_MODULE) {
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KeRaiseIrql(HIGH_LEVEL, &HalpArcsIrql);
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HalpMiniTlbSaveState();
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}
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}
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VOID
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HalpFreeArcsResources (
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VOID
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)
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/*++
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Routine Description:
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This routine frees the TLB entry that was reserved for the ARCS
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Firmware call. On an ALPHA system, this is a NULL function.
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Arguments:
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None.
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Return Value:
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None.
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--*/
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{
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if (HalpIoArchitectureType != EV5_PROCESSOR_MODULE) {
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HalpMiniTlbRestoreState();
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KeLowerIrql(HalpArcsIrql);
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}
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}
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