763 lines
15 KiB
C
763 lines
15 KiB
C
/*++
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Copyright (c) 1993 Digital Equipment Corporation
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Module Name:
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ebinitnt.c
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Abstract:
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This module implements the interrupt initialization for a Low Cost Alpha
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(LCA) system. Contains the VLSI 82C106, the 82357 and an EISA bus.
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Orignally taken from the JENSEN hal code.
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Author:
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Wim Colgate (DEC) 26-Oct-1993
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Environment:
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Kernel mode only.
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Revision History:
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Eric Rehm (DEC) 7-Jan-1994
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Intialize PCI Bus information during Phase 1 init.
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--*/
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#include "halp.h"
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#include "pcrtc.h"
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#include "nondef.h"
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#include "halpcsl.h"
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#include "eisa.h"
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#include "pci.h"
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#include "pcip.h"
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#include "iousage.h"
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#include "stdio.h"
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#include "fwcallbk.h"
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#include <ntverp.h> // to get the product build number.
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//
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// Include the header containing Error Frame Definitions(in halalpha).
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//
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#include "errframe.h"
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//
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// Define extern global buffer for the Uncorrectable Error Frame.
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// declared in halalpha\inithal.c
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//
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extern PERROR_FRAME PUncorrectableError;
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//
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// Define global data for builtin device interrupt enables.
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//
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USHORT HalpBuiltinInterruptEnable;
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// irql mask and tables
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//
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// irql 0 - passive
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// irql 1 - sfw apc level
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// irql 2 - sfw dispatch level
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// irql 3 - device low (All devices except)
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// irql 4 - device high (the serial lines)
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// irql 5 - clock
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// irql 6 - real time
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// irql 7 - error, mchk, nmi, halt
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//
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//
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// IDT mappings:
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// For the built-ins, GetInterruptVector will need more info,
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// or it will have to be built-in to the routines, since
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// these don't match IRQL levels in any meaningful way.
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//
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// 0 passive 8
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// 1 apc 9
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// 2 dispatch 10 PIC
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// 3 11 keyboard/mouse
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// 4 serial 12 errors
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// 5 clock 13 parallel
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// 6 14 halt
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// 7 nmi 15
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//
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// This is assuming the following prioritization:
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// nmi
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// halt
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// errors
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// clock
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// serial
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// parallel
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// keyboard/mouse
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// pic
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//
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// This is the HalpIrqlMask for LCA based machines:
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// The LCA interrupt pins:
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//
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// eirq 0 NMI
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// eirq 1 PIC - 82357 interrupts
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// eirq 2 Clock
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//
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// For information purposes: here is what the IDT division looks like:
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//
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// 000-015 Built-ins (we only use 8 entries; NT wants 10)
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// 016-031 ISA
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// 048-063 EISA
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// 080-095 PCI
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// 112-127 Turbo Channel
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// 128-255 unused, as are all other holes
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//
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//
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// Define the bus type, this value allows us to distinguish between
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// EISA and ISA systems.
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//
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ULONG HalpBusType = MACHINE_TYPE_ISA;
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//
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// This is the PCI Memory space that cannot be used by anyone
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// and therefore the HAL says it is reserved for itself
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//
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ADDRESS_USAGE
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NonamePCIMemorySpace = {
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NULL, CmResourceTypeMemory, PCIUsage,
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{
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__8MB, __32MB - __8MB, // Start=8MB; Length=24Mb (8 through 32)
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0,0
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}
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};
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//
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// Define global data used to communicate new clock rates to the clock
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// interrupt service routine.
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//
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ULONG HalpCurrentTimeIncrement;
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ULONG HalpNextRateSelect;
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ULONG HalpNextTimeIncrement;
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ULONG HalpNewTimeIncrement;
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VOID
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HalpClearInterrupts(
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);
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BOOLEAN
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HalpInitializeInterrupts (
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VOID
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)
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/*++
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Routine Description:
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This function initializes interrupts for an Alpha system.
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Arguments:
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None.
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Return Value:
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A value of TRUE is returned if the initialization is successfully
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completed. Otherwise a value of FALSE is returned.
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--*/
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{
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UCHAR DataByte;
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ULONG DataLong;
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ULONG Index;
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ULONG Irq;
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KIRQL Irql;
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UCHAR Priority;
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ULONG Vector;
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//
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// Initialize HAL processor parameters based on estimated CPU speed.
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// This must be done before HalpStallExecution is called. Compute integral
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// megahertz first to avoid rounding errors due to imprecise cycle clock
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// period values.
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//
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HalpInitializeProcessorParameters();
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//
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// Connect the Stall interrupt vector to the clock. When the
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// profile count is calculated, we then connect the normal
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// clock.
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PCR->InterruptRoutine[CLOCK2_LEVEL] = HalpStallInterrupt;
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//
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// Clear all pending interrupts
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//
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HalpClearInterrupts();
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//
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// Start the peridodic interrupt from the RTC
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//
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HalpProgramIntervalTimer(MAXIMUM_RATE_SELECT);
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//
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// Initialize the EISA and PCI interrupt controllers.
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//
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HalpInitializePCIInterrupts();
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//
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// Initialize the 21066 interrupts.
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//
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// N.B. - The 21066 uses the 21064 core and so the 21066 HAL
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// uses 21064 interrupt enable/disable routines.
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//
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HalpInitialize21064Interrupts();
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HalpEnable21064SoftwareInterrupt( Irql = APC_LEVEL );
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HalpEnable21064SoftwareInterrupt( Irql = DISPATCH_LEVEL );
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HalpEnable21064HardwareInterrupt( Irq = 0,
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Irql = HIGH_LEVEL,
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Vector = EISA_NMI_VECTOR,
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Priority = 0 );
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HalpEnable21064HardwareInterrupt( Irq = 1,
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Irql = DEVICE_LEVEL,
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Vector = PIC_VECTOR,
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Priority = 0 );
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HalpEnable21064HardwareInterrupt( Irq = 2,
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Irql = CLOCK_LEVEL,
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Vector = CLOCK_VECTOR,
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Priority = 0 );
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return TRUE;
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}
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VOID
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HalpClearInterrupts(
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)
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/*++
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Routine Description:
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This function no longer does anything.
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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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return;
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}
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VOID
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HalpSetTimeIncrement(
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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 is responsible for setting the time increment for an LCA
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based machine via a call into the kernel.
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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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//
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// Set the time increment value.
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//
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HalpCurrentTimeIncrement = MAXIMUM_INCREMENT;
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HalpNextTimeIncrement = MAXIMUM_INCREMENT;
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HalpNextRateSelect = 0;
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KeSetTimeIncrement( MAXIMUM_INCREMENT, MINIMUM_INCREMENT );
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}
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//
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// Define global data used to calibrate and stall processor execution.
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//
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ULONG HalpProfileCountRate;
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VOID
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HalpInitializeClockInterrupts(
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VOID
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)
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/*++
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Routine Description:
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This function is called during phase 1 initialization to complete
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the initialization of clock interrupts. For LCA, this function
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connects the true clock interrupt handler and initializes the values
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required to handle profile interrupts.
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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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//
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// Compute the profile interrupt rate.
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//
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HalpProfileCountRate = ((1000 * 1000 * 10) / KeQueryTimeIncrement());
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//
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// Set the time increment value and connect the real clock interrupt
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// routine.
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//
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PCR->InterruptRoutine[CLOCK2_LEVEL] = HalpClockInterrupt;
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return;
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}
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VOID
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HalpEstablishErrorHandler(
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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 performs the initialization necessary for the HAL to
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begin servicing machine checks.
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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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BOOLEAN ReportCorrectables;
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//
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// Connect the machine check handler via the PCR. The machine check
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// handler for LCA is the default EV4 parity-mode handler.
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//
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PCR->MachineCheckError = HalMachineCheck;
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//
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// Clear any error conditions currently pending.
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//jnfix - report correctables one day
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HalpClearAllErrors( ReportCorrectables = FALSE );
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return;
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}
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VOID
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HalpInitializeMachineDependent(
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IN ULONG Phase,
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IN PLOADER_PARAMETER_BLOCK LoaderBlock
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)
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/*++
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Routine Description:
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This function performs any EV4-specific initialization based on
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the current phase on initialization.
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Arguments:
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Phase - Supplies an indicator for phase of initialization, phase 0 or
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phase 1.
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LoaderBlock - supplies a pointer to the loader block.
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Return Value:
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None.
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--*/
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{
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if( Phase == 0 ){
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//
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// Phase 0 Initialization.
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//
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//
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// Parse the Loader Parameter block looking for PCI entry to determine
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// if PCI parity should be disabled
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//
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HalpParseLoaderBlock( LoaderBlock );
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//
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// Re-establish the error handler, to reflect the parity checking
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//
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HalpEstablishErrorHandler();
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HalpRegisterAddressUsage (&NonamePCIMemorySpace);
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} else {
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//
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// Phase 1 Initialization.
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//
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//
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// Initialize the existing bus handlers.
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//
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HalpRegisterInternalBusHandlers();
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//
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// Initialize the PCI Bus.
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//
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HalpInitializePCIBus (LoaderBlock);
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//
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// Initialize the profiler.
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//
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HalpInitializeProfiler();
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}
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return;
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}
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VOID
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HalpStallInterrupt (
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VOID
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)
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/*++
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Routine Description:
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This function serves as the stall calibration interrupt service
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routine. It is executed in response to system clock interrupts
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during the initialization of the HAL layer.
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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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HalpAcknowledgeClockInterrupt();
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return;
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}
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ULONG
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HalSetTimeIncrement (
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IN ULONG DesiredIncrement
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)
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/*++
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Routine Description:
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This function is called to set the clock interrupt rate to the frequency
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required by the specified time increment value.
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Arguments:
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DesiredIncrement - Supplies desired number of 100ns units between clock
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interrupts.
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Return Value:
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The actual time increment in 100ns units.
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--*/
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{
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ULONG NewTimeIncrement;
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ULONG NextRateSelect;
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KIRQL OldIrql;
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//
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// Raise IRQL to the highest level, set the new clock interrupt
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// parameters, lower IRQl, and return the new time increment value.
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//
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KeRaiseIrql(HIGH_LEVEL, &OldIrql);
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if (DesiredIncrement < MINIMUM_INCREMENT) {
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DesiredIncrement = MINIMUM_INCREMENT;
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}
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if (DesiredIncrement > MAXIMUM_INCREMENT) {
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DesiredIncrement = MAXIMUM_INCREMENT;
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}
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//
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// Find the allowed increment that is less than or equal to
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// the desired increment.
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//
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if (DesiredIncrement >= RTC_PERIOD_IN_CLUNKS4) {
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NewTimeIncrement = RTC_PERIOD_IN_CLUNKS4;
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NextRateSelect = RTC_RATE_SELECT4;
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} else if (DesiredIncrement >= RTC_PERIOD_IN_CLUNKS3) {
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NewTimeIncrement = RTC_PERIOD_IN_CLUNKS3;
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NextRateSelect = RTC_RATE_SELECT3;
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} else if (DesiredIncrement >= RTC_PERIOD_IN_CLUNKS2) {
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NewTimeIncrement = RTC_PERIOD_IN_CLUNKS2;
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NextRateSelect = RTC_RATE_SELECT2;
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} else {
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NewTimeIncrement = RTC_PERIOD_IN_CLUNKS1;
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NextRateSelect = RTC_RATE_SELECT1;
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}
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HalpNextRateSelect = NextRateSelect;
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HalpNewTimeIncrement = NewTimeIncrement;
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KeLowerIrql(OldIrql);
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return NewTimeIncrement;
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}
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VOID
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HalpResetHAERegisters(
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VOID
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)
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/*++
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Routine Description:
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This function resets the HAE registers in the chipset to 0.
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This is routine called during a shutdown so that the prom
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gets a predictable environment.
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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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// WRITE_REGISTER_ULONG( EPIC_HAXR1_QVA, 0 );
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// WRITE_REGISTER_ULONG( EPIC_HAXR2_QVA, 0);
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return;
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}
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VOID
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HalpGetMachineDependentErrorFrameSizes(
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PULONG RawProcessorSize,
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PULONG RawSystemInfoSize
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)
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/*++
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Routine Description:
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This function returns the size of the system specific structures.
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Arguments:
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RawProcessorSize - Pointer to a buffer that will receive the
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size of the processor specific error information buffer.
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RawSystemInfoSize - Pointer to a buffer that will receive the
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size of the system specific error information buffer.
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Return Value:
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none
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--*/
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{
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*RawProcessorSize = sizeof(PROCESSOR_LCA_UNCORRECTABLE);
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*RawSystemInfoSize = 0;
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return;
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}
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VOID
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HalpGetSystemInfo(SYSTEM_INFORMATION *SystemInfo)
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/*++
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Routine Description:
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This function fills in the System information.
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Arguments:
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SystemInfo - Pointer to the SYSTEM_INFORMATION buffer that needs
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to be filled in.
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Return Value:
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none
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--*/
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{
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char systemtype[] = "NoName";
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EXTENDED_SYSTEM_INFORMATION FwExtSysInfo;
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VenReturnExtendedSystemInformation(&FwExtSysInfo);
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RtlCopyMemory(SystemInfo->FirmwareRevisionId,
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FwExtSysInfo.FirmwareVersion,
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16);
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RtlCopyMemory(SystemInfo->SystemType,systemtype, 8);
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SystemInfo->ClockSpeed =
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((1000 * 1000) + (PCR->CycleClockPeriod >> 1)) / PCR->CycleClockPeriod;
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SystemInfo->SystemRevision = PCR->SystemRevision;
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RtlCopyMemory(SystemInfo->SystemSerialNumber,
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PCR->SystemSerialNumber,
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16);
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SystemInfo->SystemVariant = PCR->SystemVariant;
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SystemInfo->PalMajorVersion = PCR->PalMajorVersion;
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SystemInfo->PalMinorVersion = PCR->PalMinorVersion;
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SystemInfo->OsRevisionId = VER_PRODUCTBUILD;
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//
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// For now fill in dummy values.
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//
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SystemInfo->ModuleVariant = 1UL;
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SystemInfo->ModuleRevision = 1UL;
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SystemInfo->ModuleSerialNumber = 0;
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return;
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}
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VOID
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HalpInitializeUncorrectableErrorFrame (
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VOID
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)
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/*++
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|
||
Routine Description:
|
||
|
||
This function Allocates an Uncorrectable Error frame for this
|
||
system and initializes the frame with certain constant/global
|
||
values.
|
||
|
||
This is routine called during machine dependent system
|
||
Initialization.
|
||
|
||
Arguments:
|
||
|
||
none
|
||
|
||
Return Value:
|
||
|
||
none
|
||
|
||
--*/
|
||
{
|
||
PROCESSOR_LCA_UNCORRECTABLE processorFrame;
|
||
|
||
//
|
||
// If the Uncorrectable error buffer is not set then simply return
|
||
//
|
||
if(PUncorrectableError == NULL)
|
||
return;
|
||
|
||
PUncorrectableError->Signature = ERROR_FRAME_SIGNATURE;
|
||
|
||
PUncorrectableError->FrameType = UncorrectableFrame;
|
||
|
||
//
|
||
// ERROR_FRAME_VERSION is define in errframe.h and will
|
||
// change as and when there is a change in the errframe.h.
|
||
// This Version number helps the service, that reads this
|
||
// information from the dumpfile, to check if it knows about
|
||
// this frmae version type to decode. If it doesn't know, it
|
||
// will dump the entire frame to the EventLog with a message
|
||
// "Error Frame Version Mismatch".
|
||
//
|
||
|
||
PUncorrectableError->VersionNumber = ERROR_FRAME_VERSION;
|
||
|
||
//
|
||
// The sequence number will always be 1 for Uncorrectable errors.
|
||
//
|
||
|
||
PUncorrectableError->SequenceNumber = 1;
|
||
|
||
//
|
||
// The PerformanceCounterValue field is not used for Uncorrectable
|
||
// errors.
|
||
//
|
||
|
||
PUncorrectableError->PerformanceCounterValue = 0;
|
||
|
||
//
|
||
// We will fill in the UncorrectableFrame.SystemInfo here.
|
||
//
|
||
|
||
HalpGetSystemInfo(&PUncorrectableError->UncorrectableFrame.System);
|
||
|
||
PUncorrectableError->UncorrectableFrame.Flags.SystemInformationValid = 1;
|
||
|
||
return;
|
||
}
|