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/** @file
Header file for Multi-Processor support.
Copyright (c) 2010 - 2018, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php.
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#ifndef _DEBUG_MP_H_
#define _DEBUG_MP_H_
#define DEBUG_CPU_MAX_COUNT 256
typedef struct {
UINT32 CpuCount; ///< Processor count
UINT16 ApicID[DEBUG_CPU_MAX_COUNT]; ///< Record the local apic id for each processor
} DEBUG_CPU_DATA;
typedef struct {
SPIN_LOCK MpContextSpinLock; ///< Lock for writting MP context
SPIN_LOCK DebugPortSpinLock; ///< Lock for access debug port
SPIN_LOCK MailboxSpinLock; ///< Lock for accessing mail box
UINT8 CpuBreakMask[DEBUG_CPU_MAX_COUNT/8]; ///< Bitmask of all breaking CPUs
UINT8 CpuStopStatusMask[DEBUG_CPU_MAX_COUNT/8]; ///< Bitmask of CPU stop status
UINT32 ViewPointIndex; ///< Current view point to be debugged
UINT32 BspIndex; ///< Processor index value of BSP
UINT32 BreakAtCpuIndex; ///< Processor index value of the current breaking CPU
UINT32 DebugTimerInitCount; ///< Record BSP's init timer count
BOOLEAN IpiSentByAp; ///< TRUR: IPI is sent by AP. TALSE: IPI is sent by BSP
BOOLEAN RunCommandSet; ///< TRUE: RUN commmand is executing. FALSE : RUN command has been executed.
} DEBUG_MP_CONTEXT;
extern DEBUG_MP_CONTEXT volatile mDebugMpContext;
extern DEBUG_CPU_DATA volatile mDebugCpuData;
/**
Break the other processor by send IPI.
@param[in] CurrentProcessorIndex Current processor index value.
**/
VOID
HaltOtherProcessors (
IN UINT32 CurrentProcessorIndex
);
/**
Get the current processor's index.
@return Processor index value.
**/
UINT32
GetProcessorIndex (
VOID
);
/**
Acquire a spin lock when Multi-processor supported.
It will block in the function if cannot get the access control.
If Multi-processor is not supported, return directly.
@param[in, out] MpSpinLock A pointer to the spin lock.
**/
VOID
AcquireMpSpinLock (
IN OUT SPIN_LOCK *MpSpinLock
);
/**
Release a spin lock when Multi-processor supported.
@param[in, out] MpSpinLock A pointer to the spin lock.
**/
VOID
ReleaseMpSpinLock (
IN OUT SPIN_LOCK *MpSpinLock
);
/**
Check if the specified processor is BSP or not.
@param[in] ProcessorIndex Processor index value.
@retval TRUE It is BSP.
@retval FALSE It isn't BSP.
**/
BOOLEAN
DebugAgentIsBsp (
IN UINT32 ProcessorIndex
);
/**
Set processor stop flag bitmask in MP context.
@param[in] ProcessorIndex Processor index value.
@param[in] StopFlag TRUE means set stop flag.
FALSE means clean break flag.
**/
VOID
SetCpuStopFlagByIndex (
IN UINT32 ProcessorIndex,
IN BOOLEAN StopFlag
);
/**
Set processor break flag bitmask in MP context.
@param[in] ProcessorIndex Processor index value.
@param[in] BreakFlag TRUE means set break flag.
FALSE means clean break flag.
**/
VOID
SetCpuBreakFlagByIndex (
IN UINT32 ProcessorIndex,
IN BOOLEAN BreakFlag
);
/**
Check if processor is stopped already.
@param[in] ProcessorIndex Processor index value.
@retval TRUE Processor is stopped already.
@retval FALSE Processor isn't stopped.
**/
BOOLEAN
IsCpuStopped (
IN UINT32 ProcessorIndex
);
/**
Set the run command flag.
@param[in] RunningFlag TRUE means run command flag is set.
FALSE means run command flag is cleared.
**/
VOID
SetCpuRunningFlag (
IN BOOLEAN RunningFlag
);
/**
Set the current view point to be debugged.
@param[in] ProcessorIndex Processor index value.
**/
VOID
SetDebugViewPoint (
IN UINT32 ProcessorIndex
);
/**
Set the IPI send by BPS/AP flag.
@param[in] IpiSentByApFlag TRUE means this IPI is sent by AP.
FALSE means this IPI is sent by BSP.
**/
VOID
SetIpiSentByApFlag (
IN BOOLEAN IpiSentByApFlag
);
/**
Check the next pending breaking CPU.
@retval others There is at least one processor broken, the minimum
index number of Processor returned.
@retval -1 No any processor broken.
**/
UINT32
FindNextPendingBreakCpu (
VOID
);
/**
Check if all processors are in running status.
@retval TRUE All processors run.
@retval FALSE At least one processor does not run.
**/
BOOLEAN
IsAllCpuRunning (
VOID
);
/**
Check if the current processor is the first breaking processor.
If yes, halt other processors.
@param[in] ProcessorIndex Processor index value.
@return TRUE This processor is the first breaking processor.
@return FALSE This processor is not the first breaking processor.
**/
BOOLEAN
IsFirstBreakProcessor (
IN UINT32 ProcessorIndex
);
#endif
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