reactos/hal/halx86/mp/processor_mp.c
2021-06-11 15:33:08 +03:00

141 lines
2.7 KiB
C

/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
* FILE: hal/halx86/mp/processor_mp.c
* PURPOSE: Intel MultiProcessor specification support
* PROGRAMMER: David Welch (welch@cwcom.net)
* Casper S. Hornstrup (chorns@users.sourceforge.net)
* NOTES: Parts adapted from linux SMP code
* UPDATE HISTORY:
* 22/05/1998 DW Created
* 12/04/2001 CSH Added MultiProcessor specification support
*/
/* INCLUDES *****************************************************************/
#include <hal.h>
#define NDEBUG
#include <debug.h>
KAFFINITY HalpActiveProcessors, HalpDefaultInterruptAffinity;
/* PRIVATE FUNCTIONS *********************************************************/
VOID
NTAPI
HaliHaltSystem(VOID)
{
/* Disable interrupts and halt the CPU */
_disable();
__halt();
}
/* FUNCTIONS *****************************************************************/
VOID NTAPI
HalInitializeProcessor(ULONG ProcessorNumber,
PLOADER_PARAMETER_BLOCK LoaderBlock)
{
ULONG CPU;
DPRINT("HalInitializeProcessor(%x %x)\n", ProcessorNumber, LoaderBlock);
CPU = ThisCPU();
if (OnlineCPUs & (1 << CPU))
{
ASSERT(FALSE);
}
if (ProcessorNumber == 0)
{
HaliInitBSP();
}
else
{
APICSetup();
DPRINT("CPU %d says it is now booted.\n", CPU);
APICCalibrateTimer(CPU);
}
/* This processor is now booted */
CPUMap[CPU].Flags |= CPU_ENABLED;
OnlineCPUs |= (1 << CPU);
/* Setup busy waiting */
//HalpCalibrateStallExecution();
}
BOOLEAN NTAPI
HalAllProcessorsStarted (VOID)
{
ULONG CPUs = 0, i;
DPRINT("HalAllProcessorsStarted()\n");
for (i = 0; i < 32; i++)
{
if (OnlineCPUs & (1 << i))
{
CPUs++;
}
}
if (CPUs > CPUCount)
{
ASSERT(FALSE);
}
else if (CPUs == CPUCount)
{
IOAPICEnable();
IOAPICSetupIds();
if (CPUCount > 1)
{
APICSyncArbIDs();
}
IOAPICSetupIrqs();
return TRUE;
}
return FALSE;
}
BOOLEAN
NTAPI
HalStartNextProcessor(
IN struct _LOADER_PARAMETER_BLOCK *LoaderBlock,
IN PKPROCESSOR_STATE ProcessorState)
{
ULONG CPU;
DPRINT("HalStartNextProcessor(%x %x)\n", LoaderBlock, ProcessorState);
for (CPU = 0; CPU < CPUCount; CPU++)
{
if (!(OnlineCPUs & (1<<CPU)))
{
break;
}
}
if (CPU >= CPUCount)
{
ASSERT(FALSE);
}
DPRINT1("Attempting to boot CPU %d\n", CPU);
HaliStartApplicationProcessor(CPU, (ULONG)ProcessorState);
return TRUE;
}
VOID
NTAPI
HalProcessorIdle(VOID)
{
UNIMPLEMENTED;
}
/* EOF */