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/*
* Copyright (c) 1995 FirePower Systems, Inc.
* DO NOT DISTRIBUTE without permission
*
* $RCSfile: pxproc.c $
* $Revision: 1.21 $
* $Date: 1996/06/25 02:46:32 $
* $Locker: $
*/
/*++
Copyright (c) 1991 Microsoft Corporation
Module Name:
pxproc.c
Abstract:
Stub functions for UP hals.
Author:
Ken Reneris (kenr) 22-Jan-1991
Environment:
Kernel mode only.
Revision History:
Jim Wooldridge Ported to PowerPC
--*/
#include "fpdebug.h"
#include "halp.h"
#include "stdio.h"
#include "string.h"
#include "stdlib.h"
#include "arccodes.h"
#include "fpreg.h"
#include "phsystem.h"
UCHAR HalName[] = "Powerized HAL";
extern VOID HalpInitializePciBus (VOID);
VOID HalpInitOtherBuses (VOID);
ULONG HalpProcessorCount(VOID);
#ifdef ALLOC_PRAGMA
#pragma alloc_text(INIT,HalStartNextProcessor)
#pragma alloc_text(INIT,HalAllProcessorsStarted)
#pragma alloc_text(INIT,HalReportResourceUsage)
#pragma alloc_text(INIT,HalReportResourceUsage)
#pragma alloc_text(INIT,HalpInitOtherBuses)
#endif
/*++
Routine Description:
This function is called to start the next processor.
Arguments:
LoaderBlock - Supplies a pointer to the loader parameter block.
ProcessorState - Supplies a pointer to the processor state to be
used to start the processor.
Return Value:
If a processor is successfully started, then a value of TRUE is
returned. Otherwise a value of FALSE is returned. If a value of
TRUE is returned, then the logical processor number is stored
in the processor control block specified by the loader block.
--*/
BOOLEAN
HalStartNextProcessor (
IN PLOADER_PARAMETER_BLOCK LoaderBlock,
IN PKPROCESSOR_STATE ProcessorState
)
{
PRESTART_BLOCK pRB;
ULONG Number;
PKPRCB Prcb;
char buf[128];
HDBG(DBG_INTERNAL, HalpDebugPrint("HalpStartNextProcessor: called\n"););
//
// Check if UNIPROCESSOR is set and ignore all other processors,
// this is done in a free HAL so that UP/MP performance measurements
// can be taken.
//
if (HalGetEnvironmentVariable("UNIPROCESSOR", sizeof(buf), buf)
== ESUCCESS) {
if (_stricmp(buf, "true") == 0) {
HalpDebugPrint("HalpStartNextProcessor: UNIPROCESSOR set\n");
return FALSE;
}
}
//
// If there is more than one restart block then this is a multi-
// processor system.
//
// N.B. The first restart parameter block must be for the boot master
// and must represent logical processor 0.
//
// Scan the restart parameter blocks for a processor that is ready,
// but not running. If a processor is found, then fill in the restart
// processor state, set the logical processor number, and set start
// in the boot status.
//
pRB = SYSTEM_BLOCK->RestartBlock;
Number = 0;
while (pRB != NULL) {
if ((pRB->BootStatus.ProcessorReady == TRUE) &&
(pRB->BootStatus.ProcessorStart == FALSE)) {
//
// Assert that we think this is an MP capable machine
//
if (!(SystemDescription[SystemType].Flags&SYS_MPCAPABLE) ||
!(ProcessorDescription[ProcessorType].Flags&PROC_MPCAPABLE)) {
HalpDebugPrint("HalStartNextProcessor: HAL/Veneer mismatch\n");
KeBugCheck(MISMATCHED_HAL);
}
RtlZeroMemory(&pRB->u.Ppc, sizeof(PPC_RESTART_STATE));
//
// Set processor start address.
//
pRB->u.Ppc.Iar = ProcessorState->ContextFrame.Iar;
pRB->u.Ppc.Msr = ProcessorState->ContextFrame.Msr;
//
// PowerPC linkage conventions pass parameters in registers
// r.3 thru r.10. Set all of them to allow as much flexibility
// to the kernel as possible.
//
pRB->u.Ppc.IntR3 = ProcessorState->ContextFrame.Gpr3;
pRB->u.Ppc.IntR4 = ProcessorState->ContextFrame.Gpr4;
pRB->u.Ppc.IntR5 = ProcessorState->ContextFrame.Gpr5;
pRB->u.Ppc.IntR6 = ProcessorState->ContextFrame.Gpr6;
pRB->u.Ppc.IntR7 = ProcessorState->ContextFrame.Gpr7;
pRB->u.Ppc.IntR8 = ProcessorState->ContextFrame.Gpr8;
pRB->u.Ppc.IntR9 = ProcessorState->ContextFrame.Gpr9;
pRB->u.Ppc.IntR10 = ProcessorState->ContextFrame.Gpr10;
Prcb = (PKPRCB)(LoaderBlock->Prcb);
Prcb->Number = (CCHAR)Number;
Prcb->RestartBlock = pRB;
//
// ARC interface is waiting for this bit to change
// so change it.
//
pRB->BootStatus.ProcessorStart = TRUE;
HDBG(DBG_GENERAL,
HalpDebugPrint("HalStartNextProcessor: started Cpu (%d)\n",
Number););
return TRUE;
}
Number++;
pRB = pRB->NextRestartBlock;
}
return FALSE;
}
BOOLEAN
HalAllProcessorsStarted(VOID)
{
PRESTART_BLOCK pRB;
ULONG NumCpu=0;
HDBG(DBG_INTERNAL, HalpDebugPrint("HalAllProcessorsStarted: called\n"););
pRB = SYSTEM_BLOCK->RestartBlock;
while (pRB != NULL) {
if ((pRB->BootStatus.ProcessorReady == TRUE) &&
(pRB->BootStatus.ProcessorStart == FALSE))
HDBG(DBG_GENERAL,HalpDebugPrint(
"HalAllProcessorsStarted: NT disabled processor %d\n",NumCpu););
NumCpu++;
pRB = pRB->NextRestartBlock;
}
HDBG(DBG_GENERAL,
HalpDebugPrint("HalAllProcessorsStarted: return TRUE\n"););
return TRUE;
}
VOID
HalReportResourceUsage(VOID)
{
extern VOID HalpSetUpFirePowerRegistry(VOID);
INTERFACE_TYPE interfacetype;
ANSI_STRING AHalName;
UNICODE_STRING UHalName;
interfacetype = Internal;
RtlInitAnsiString (&AHalName, HalName);
RtlAnsiStringToUnicodeString (&UHalName, &AHalName, TRUE);
HalpReportResourceUsage(&UHalName, interfacetype);
interfacetype = Isa;
HalpReportResourceUsage (&UHalName, interfacetype);
RtlFreeUnicodeString (&UHalName);
//
// Registry is now intialized, see if there are any PCI buses
//
HalpInitializePciBus ();
HalpSetUpFirePowerRegistry(); // in fprgstry.c
}
ULONG
HalpProcessorCount()
{
PRESTART_BLOCK pRB;
static ULONG Count = 0;
if (Count)
return(Count);
pRB = SYSTEM_BLOCK->RestartBlock;
while (pRB != NULL) {
if ((pRB->BootStatus.ProcessorReady == TRUE) &&
(pRB->BootStatus.ProcessorStart == TRUE))
Count++;
pRB = pRB->NextRestartBlock;
}
return Count;
}
VOID
HalpInitOtherBuses(VOID)
{
// no other internal buses supported
}
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