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UefiCpuPkg/CpuDxe: Ap do loop routine to execute procedure 

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com>
Reviewed-by: Jeff Fan <jeff.fan@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16361 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Chen Fan 2014-11-13 18:28:10 +00:00 committed by jljusten
parent b7c05ba517
commit 9908a829d0
1 changed files with 32 additions and 1 deletions
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33
UefiCpuPkg/CpuDxe/CpuMp.c
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@ -1108,10 +1108,41 @@ ProcessorToIdleState (
IN VOID *Context2 OPTIONAL
)
{
DEBUG ((DEBUG_INFO, "Ap apicid is %d\n", GetApicId ()));
UINTN ProcessorNumber;
CPU_DATA_BLOCK *CpuData;
EFI_AP_PROCEDURE Procedure;
VOID *ProcedureArgument;
WhoAmI (&mMpServicesTemplate, &ProcessorNumber);
CpuData = &mMpSystemData.CpuDatas[ProcessorNumber];
AsmApDoneWithCommonStack ();
while (TRUE) {
while (!AcquireSpinLockOrFail (&CpuData->CpuDataLock)) {
CpuPause ();
}
ProcedureArgument = CpuData->Parameter;
Procedure = CpuData->Procedure;
ReleaseSpinLock (&CpuData->CpuDataLock);
if (Procedure != NULL) {
Procedure (ProcedureArgument);
while (!AcquireSpinLockOrFail (&CpuData->CpuDataLock)) {
CpuPause ();
}
CpuData->Procedure = NULL;
ReleaseSpinLock (&CpuData->CpuDataLock);
SetApState (CpuData, CpuStateFinished);
}
CpuPause ();
}
CpuSleep ();
CpuDeadLoop ();
}