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