mirror of https://github.com/lianthony/NT4.0
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
87 lines
1.2 KiB
87 lines
1.2 KiB
/*++
|
|
|
|
Copyright (c) 1995 DeskStation Technology
|
|
|
|
Module Name:
|
|
|
|
arcssup.c
|
|
|
|
Abstract:
|
|
|
|
This module allocates resources before a call to the ARCS Firmware, and
|
|
frees those reources after the call returns.
|
|
|
|
Author:
|
|
|
|
Michael D. Kinney 30-Apr-1995
|
|
|
|
Environment:
|
|
|
|
Kernel mode
|
|
|
|
Revision History:
|
|
|
|
--*/
|
|
|
|
#include "halp.h"
|
|
|
|
static KIRQL HalpArcsIrql;
|
|
|
|
VOID
|
|
HalpAllocateArcsResources (
|
|
VOID
|
|
)
|
|
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This routine allocated resources required before an ARCS Firmware call is made.
|
|
On an ALPHA system, this is a NULL function.
|
|
|
|
Arguments:
|
|
|
|
None.
|
|
|
|
Return Value:
|
|
|
|
None.
|
|
|
|
--*/
|
|
|
|
|
|
{
|
|
if (HalpIoArchitectureType != EV5_PROCESSOR_MODULE) {
|
|
KeRaiseIrql(HIGH_LEVEL, &HalpArcsIrql);
|
|
HalpMiniTlbSaveState();
|
|
}
|
|
}
|
|
|
|
VOID
|
|
HalpFreeArcsResources (
|
|
VOID
|
|
)
|
|
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This routine frees the TLB entry that was reserved for the ARCS
|
|
Firmware call. On an ALPHA system, this is a NULL function.
|
|
|
|
Arguments:
|
|
|
|
None.
|
|
|
|
Return Value:
|
|
|
|
None.
|
|
|
|
--*/
|
|
|
|
{
|
|
if (HalpIoArchitectureType != EV5_PROCESSOR_MODULE) {
|
|
HalpMiniTlbRestoreState();
|
|
KeLowerIrql(HalpArcsIrql);
|
|
}
|
|
}
|