659 lines
13 KiB
C
659 lines
13 KiB
C
/*++
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Copyright (c) 1994 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 platform-specific initialization for
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an EB164 system.
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Author:
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Joe Notarangelo 06-Sep-1994
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Environment:
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Kernel mode only.
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Revision History:
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--*/
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#include "halp.h"
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#include "pcrtc.h"
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#include "eb164.h"
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#include "iousage.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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// 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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// 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
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// irql 4 - device high
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// irql 5 - interval clock
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// irql 6 - not used
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// irql 7 - error, mchk, nmi, performance counters
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//
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//
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//
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// The hardware interrupt pins are used as follows for EB164
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//
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// IRQ0 = CIA_INT
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// IRQ1 = SYS_INT (PCI and ESC interrupts)
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// IRQ2 = Interval Clock
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// IRQ3 = Error Interrupts
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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. We're only interested in distinguishing
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// between just those two buses.
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//
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ULONG HalpBusType = MACHINE_TYPE_ISA;
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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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//
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// External references.
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//
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extern ULONG HalDisablePCIParityChecking;
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//
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// Function prototypes.
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//
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BOOLEAN
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HalpInitializeEB164Interrupts (
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VOID
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);
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VOID
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HalpParseLoaderBlock(
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PLOADER_PARAMETER_BLOCK LoaderBlock
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);
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VOID
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HalpErrorInterrupt(
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VOID
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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 EB164 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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extern ULONG Halp21164CorrectedErrorInterrupt();
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extern ULONG HalpCiaErrorInterrupt();
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extern ULONG HalpDeviceInterrupt();
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extern ULONG HalpHaltInterrupt();
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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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// Start the periodic 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 EB164 interrupts.
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//
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HalpInitializeEB164Interrupts();
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//
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// Initialize the EV5 (21164) interrupts.
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//
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HalpInitialize21164Interrupts();
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PCR->InterruptRoutine[EV5_IRQ0_VECTOR] = (PKINTERRUPT_ROUTINE)HalpCiaErrorInterrupt;
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PCR->InterruptRoutine[EV5_IRQ1_VECTOR] = (PKINTERRUPT_ROUTINE)HalpDeviceInterrupt;
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PCR->InterruptRoutine[EV5_IRQ2_VECTOR] = (PKINTERRUPT_ROUTINE)HalpClockInterrupt;
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PCR->InterruptRoutine[EV5_HALT_VECTOR] = (PKINTERRUPT_ROUTINE)HalpHaltInterrupt;
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PCR->InterruptRoutine[EV5_MCHK_VECTOR] = (PKINTERRUPT_ROUTINE)HalpErrorInterrupt;
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PCR->InterruptRoutine[EV5_CRD_VECTOR] = (PKINTERRUPT_ROUTINE)Halp21164CorrectedErrorInterrupt;
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HalpStart21164Interrupts();
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return TRUE;
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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 EV4
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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 EV4, 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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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 PciParityChecking;
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BOOLEAN ReportCorrectables;
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//
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// Connect the machine check handler via the PCR.
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//
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PCR->MachineCheckError = HalMachineCheck;
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HalpInitializeCiaMachineChecks( ReportCorrectables = FALSE,
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PciParityChecking = 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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ULONG BusIrql;
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ULONG BusNumber;
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BOOLEAN ReportCorrectables;
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BOOLEAN PciParityChecking;
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//
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// Since we have a flash device mapped in PCI memory space, but its
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// HAL driver is pretending to be a cmos8k driver - override the
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// HalpCMOSRamBase value set in HalpMapIoSpace (ciamapio.c) with the
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// correct QVA to reach the environment block in the flash through
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// the SIO.
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//
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HalpCMOSRamBase = (PVOID)NVRAM_ENVIRONMENT_QVA;
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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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#ifdef HALDBG
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DbgPrint("LOOK AT THIS ONE\r\n");
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DumpCia(CiaGeneralRegisters |
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CiaErrorRegisters |
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CiaScatterGatherRegisters);
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#endif
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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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// Establish the error handler, to reflect the PCI parity checking.
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//
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PciParityChecking = (BOOLEAN)(HalDisablePCIParityChecking == 0);
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HalpInitializeCiaMachineChecks(ReportCorrectables = TRUE,
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PciParityChecking);
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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 PCI Bus.
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//
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HalpInitializePCIBus(LoaderBlock);
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//
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// Initialize 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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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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//
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//jnfix
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//
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// This routine is bogus and does not apply to EB164 and the call should be
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// ripped out of fwreturn (or at least changed to something that is more
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// abstract).
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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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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_EV5_UNCORRECTABLE);
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*RawSystemInfoSize = sizeof(CIA_UNCORRECTABLE_FRAME);
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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[] = "eb164";
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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:
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This function Allocates an Uncorrectable Error frame for this
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system and initializes the frame with certain constant/global
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values.
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This is routine called during machine dependent system
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Initialization.
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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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PROCESSOR_EV5_UNCORRECTABLE processorFrame;
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//
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// If the Uncorrectable error buffer is not set then simply return
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//
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if(PUncorrectableError == NULL)
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return;
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PUncorrectableError->Signature = ERROR_FRAME_SIGNATURE;
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PUncorrectableError->FrameType = UncorrectableFrame;
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//
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// ERROR_FRAME_VERSION is define in errframe.h and will
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// change as and when there is a change in the errframe.h.
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// This Version number helps the service, that reads this
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// information from the dumpfile, to check if it knows about
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// this frmae version type to decode. If it doesn't know, it
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// will dump the entire frame to the EventLog with a message
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// "Error Frame Version Mismatch".
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//
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PUncorrectableError->VersionNumber = ERROR_FRAME_VERSION;
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//
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// The sequence number will always be 1 for Uncorrectable errors.
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//
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PUncorrectableError->SequenceNumber = 1;
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//
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// The PerformanceCounterValue field is not used for Uncorrectable
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// errors.
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//
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PUncorrectableError->PerformanceCounterValue = 0;
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//
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// We will fill in the UncorrectableFrame.SystemInfo here.
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//
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HalpGetSystemInfo(&PUncorrectableError->UncorrectableFrame.System);
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PUncorrectableError->UncorrectableFrame.Flags.SystemInformationValid = 1;
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return;
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}
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//
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//jnfix - this variable is needed because the clock interrupt handler
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// - in intsup.s was made to be familiar with ev4prof.c, unfortunate
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// - since we don't use ev4prof.c, so for now this is a hack, later
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// - we will either fix intsup.s or create a new intsup.s that does
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// - not have this hack
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//
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ULONG HalpNumberOfTicksReload;
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