kernel/eka/kernel/kerncorestats.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 14 May 2010 17:13:29 +0300
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permissions -rw-r--r--
Revision: 201019 Kit: 201019
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// Copyright (c) 1994-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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// e32\kernel\kerncorestats.cpp
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// 
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// WARNING: This file contains some APIs which are internal and are subject
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//          to change without notice. Such APIs should therefore not be used
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//          outside the Kernel and Hardware Services package.
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//
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/** @file
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@internalComponent
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@prototype
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*/
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#include <kerncorestats.h>
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#include <nk_priv.h>
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// The following differ between unicore and smp, so use define to unify.
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#ifdef __SMP__
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#define FASTTIMER NKern::Timestamp()
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#define FASTTIMERFREQ NKern::TimestampFrequency()
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#define NUMCPUS TheScheduler.iNumCpus
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#else
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#define FASTTIMER (TUint64) NKern::FastCounter()
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#define FASTTIMERFREQ NKern::FastCounterFrequency()
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#define NUMCPUS 1
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#endif
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KernCoreStats* KernCoreStats::StatsData=NULL;
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TSpinLock KernCoreStats::Lock(TSpinLock::EOrderGenericIrqLow0);
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/**
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This method is called to initiate the KernCoreStats system.
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It can only be called once, and the is no way to disable the system again afterwards. 
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@param aStatSelection
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The bitfield defining which statistics to be collected.
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@return KErrNone on success. KErrInUse is the system has already been configured.
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*/
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EXPORT_C TInt KernCoreStats::Configure(TUint aStatSelection)
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	{
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	if (StatsData)
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		return KErrInUse;
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	TInt cores = NUMCPUS;
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// Calculate size needed
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	TInt dataSize = 0;
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	dataSize+= (aStatSelection & KStatsCoreTotalTimeInIdle)?	sizeof(TUint64)*cores*2 :0;
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	dataSize+= (aStatSelection & KStatsTimeCrossIdleAndActive)?	sizeof(TUint64)*(cores+1) :0;
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	dataSize+= (aStatSelection & KStatsCoreNumTimesInIdle)?		sizeof(TUint)*cores :0;
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	dataSize+= (aStatSelection & KStatsCoreTotalTimeInIdle)?	sizeof(TUint)*cores :0;
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	dataSize+= (aStatSelection & KStatsReadyStateChanges)?		sizeof(TUint)*2*cores:0;
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	dataSize+= (aStatSelection & KStatsNumTimeSliceExpire)?		sizeof(TUint)*cores:0;
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// Create stats object object
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	KernCoreStats* kks = (KernCoreStats*) Kern::Alloc(sizeof(KernCoreStats) + dataSize); //coreTimesSize + offset);
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	if (kks==NULL)
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		return KErrNoMemory;
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	kks->Construct(aStatSelection);
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	__e32_memory_barrier();
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	StatsData = kks;	
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	return KErrNone;
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	};
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/**
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  This is a utility class, for calculating address offsets within kerncorestats, and offsets where the data will be copied
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  to at a later point.  This is made more complicated by every item being optional.
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@internal
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*/ 
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class DynamicObject
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	{
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public:
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	DynamicObject(TAny* aPointer);
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	void Add(TBool, TUint, TAny**, TUint, TUint16&);
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private:
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	TUint iOffset;
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	TUint* iPointer;
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	};
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/**
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Contructor which takes the address of the allocated memory object, for which items are to be added into.
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@internal
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*/
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   110
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DynamicObject::DynamicObject(TAny* aPointer)
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	:iOffset(0),
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	iPointer((TUint*) aPointer)
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	{};
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/**
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Workes out the address of a data item within the alloceted memory object, placeing it after the previosely added one.
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It also works out the target offset, for which the data will be used too fill, within a later provided data block.
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@param aFeatureEnabled
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A bool used to indicate if the feature is enabled or not.  If not, the refranced offsets are set to indicate the feature is disabled.
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@param aSizeInWordsP
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The amount of memory for which the object shall use within the internal data object.
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@aPointer
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The pointer to hold the location of the data item, within the internal object.
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If the feature is disabled, this is set to NULL.
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@param aSizeInWordsO
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The amount of memory for which the object shall use within the exteral data object.
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@param aOffset
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The offset to point to the location of the data item, within the external object.  
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This offset can be added to the provided pointer, to form a pointer to it.
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If the feature is disabled, this is set to KStatDisabled.
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@internal
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*/
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void DynamicObject::Add(TBool aFeatureEnabled, TUint aSizeInWordsP,TAny** aPointer, TUint aSizeInWordsO, TUint16& aOffset)
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	{
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	if (aFeatureEnabled)
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		{	
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		*aPointer = iPointer;
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		aOffset = (TUint16) iOffset;
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		iPointer+= aSizeInWordsP;
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		iOffset+=sizeof(TInt)* aSizeInWordsO;
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		}
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	else
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		{
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		*aPointer=NULL;
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		aOffset=KernCoreStats::KStatDisabled;
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		}
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	}	      
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/**
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@internal
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This second stage constructor is used initialise the KernCoreStats object.
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It is called by KernCoreStats::Configure.
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@param aBF
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The bitfield defining which statistics to be collected.
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@param aSizeToCopy
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The size of the section of the data buffer used for holding the stats, which
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can be directly copied into the destination buffer.  The remaining must be calculated.
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@pre If user thread, it must be in a critical section.
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*/
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void KernCoreStats::Construct(TUint aBF)
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	{
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	TInt cores = NUMCPUS;
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	// Here we calculate the offsets and pointers of the data we are collecting.
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	// We need pointers for internal data collection, and offsets for where we will put the data in the structure at collection.
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	DynamicObject o((TUint8*) this + sizeof(KernCoreStats));
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	TUint16 dummy=0;
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	//	Flag to turn feature on,		size of/and location of internal data,	size of/and location of target data,
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	o.Add(aBF & KStatsCoreTotalTimeInIdle, 		cores*2, 	(TAny**)& iTotalTimeIdle, 	cores,	iOffsTotalTimeIdle);
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	o.Add(aBF & KStatsCoreTotalTimeInIdle, 		cores*2, 	(TAny**)& iLastTimeCore,	0,	dummy);
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	o.Add(aBF & KStatsTimeCrossIdleAndActive, 	(cores+1)*2,	(TAny**)& iTimesCIA,		cores+1, iOffsTimesCIA);
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	o.Add(aBF & KStatsCoreNumTimesInIdle, 		cores,		(TAny**)& iNumberIdles,		cores,	iOffsNumberIdles);
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	o.Add(aBF & KStatsNumEvents, 			0,		(TAny**)& dummy,		1,	iOffsNumEvents);
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	o.Add(aBF & KStatsReadyStateChanges,		cores,		(TAny**)& iLastAddReadyCount,	1, 	iOffsReadyStateAdd);
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	o.Add(aBF & KStatsReadyStateChanges,		cores,		(TAny**)& iLastSubReadyCount,	1,	iOffsReadyStateRemove);
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	o.Add(aBF & KStatsNumTimeSliceExpire,		cores,		(TAny**)& iLastSlicesCount,	1, 	iOffsNumTimeSliceExpire);
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	TUint64 timeNow = FASTTIMER;
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	TInt core;
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	// set up varables needed for CoreTotalTimeInIdle
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	if (iLastTimeCore)
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		{
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		for (core=0; core<cores; core++) // Start core times time now.
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			iLastTimeCore[core]=timeNow;
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		}
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	// Set up variables used for KTimeCrossIdleAndActive (iTimesCIA) calculations.
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	// (Could make conditional, but wouldnt save time)
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	iLastTime=timeNow;
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	iCoresIdle= 0;
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	};
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/**
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This method fills the provided buffer with the kernel statistics that have been collected.
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@param aBuffer
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The pre-allocated buffer for which the collected data should be copied to.
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@return KErrNone on success.
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*/
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EXPORT_C TInt KernCoreStats::Stats(TAny* aBuffer)
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	{
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	if (StatsData)
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		return StatsData->StatsCopy(aBuffer);
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	else
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		return KErrNotReady;
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	};
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/**
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@internal
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This method implements the functionality of KernCoreStats::Stats.
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This method fills the provided buffer with the kernel statistics that have been collected.
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@param aBuffer
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The pre-allocated buffer for which the collected data should be copied to.
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@return KErrNone on success.
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*/
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TInt KernCoreStats::StatsCopy(TAny* aBuffer)
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	{
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	TUint32 timerFrequency = FASTTIMERFREQ;
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	TUint32 targetFrequency=1000000;
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	TInt cores = NUMCPUS;
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	TInt core;
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	TInt ints = __SPIN_LOCK_IRQSAVE(Lock); // This spinlock is doubley important, as it acts as memory barrier for "if (StatsData)"
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	TUint64 timeNow = FASTTIMER;
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	// For the core idle times, we must add in the time for any core which is currently idle,
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	// so that the values are properly framed.
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	if (iTotalTimeIdle)
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		{
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		TUint u;
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		TUint64 idletime;
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		for(core=0, u = iCoreMask; core<cores; u>>=1, core++)
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			{
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			if (u & 0x1u)
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				{
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				iTotalTimeIdle[core]+=timeNow-iLastTimeCore[core];
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				iLastTimeCore[core]=timeNow;
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				}
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			idletime = (iTotalTimeIdle[core]*targetFrequency)/timerFrequency;
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			Value32(aBuffer, iOffsTotalTimeIdle)[core] = ((idletime>>32)?KMaxTUint32:(TUint32)idletime);
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			iTotalTimeIdle[core]=0;
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			}
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		__SPIN_FLASH_IRQRESTORE(Lock,ints); 
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		timeNow = FASTTIMER;
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		}
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	// For times across idle and active, we must add in the time for the current state of the cores
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	// so that the values are properly framed.
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	if (iTimesCIA)
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		{
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		iTimesCIA[iCoresIdle]+= timeNow-iLastTime;
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		iLastTime=timeNow;
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		// Copy to structure
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		TUint64 timecia;
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		for(core=0; core<cores+1; core++) // here we are not actally talking about cores, but CIA.
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			{
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			timecia =  (iTimesCIA[core]*targetFrequency)/timerFrequency;
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			Value32(aBuffer, iOffsTimesCIA)[core] = (timecia>>32)?KMaxTUint32:(TUint32)timecia;
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			iTimesCIA[core]=0;
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			}
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		__SPIN_FLASH_IRQRESTORE(Lock,ints);
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		}
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	if (iNumberIdles)
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		{
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		for(core=0; core<cores; core++)
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			{
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			Value32(aBuffer, iOffsNumberIdles)[core] =iNumberIdles[core];
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			iNumberIdles[core]=0;
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			}
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		}
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   316
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	if (iOffsNumEvents!=KStatDisabled)
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		{
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		*Value32(aBuffer, iOffsNumEvents)= iNumEvents;
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		iNumEvents=0;
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		}
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   322
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	__SPIN_UNLOCK_IRQRESTORE(Lock, ints);
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   324
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	// Calculate the MadeReady couter, and the MadeUnready counter.
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	if (iOffsReadyStateAdd!=KStatDisabled)
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		{
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parents:
diff changeset
   329
		TUint addTot=0;
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parents:
diff changeset
   330
		TUint subTot=0;
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parents:
diff changeset
   331
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parents:
diff changeset
   332
		TUint addReadyCount;
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parents:
diff changeset
   333
		TUint subReadyCount;
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parents:
diff changeset
   334
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parents:
diff changeset
   335
#ifndef __X86__
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parents:
diff changeset
   336
#ifdef __SMP__
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parents:
diff changeset
   337
		// for each core, the previous ready and unready values are subtracted from
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parents:
diff changeset
   338
		// the current counter value, and then these values added together.
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parents:
diff changeset
   339
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parents:
diff changeset
   340
		for (core=0; core<cores; core++)
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   341
			{
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   342
			addReadyCount= TheSubSchedulers[core].iMadeReadyCounter;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   343
			subReadyCount= TheSubSchedulers[core].iMadeUnReadyCounter;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   344
			
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   345
			addTot+= addReadyCount - iLastAddReadyCount[core];
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   346
			iLastAddReadyCount[core]=addReadyCount;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   347
			
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   348
			subTot+= subReadyCount - iLastSubReadyCount[core];
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   349
			iLastSubReadyCount[core]=subReadyCount;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   350
			}
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   351
#else
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   352
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   353
		addReadyCount= TheScheduler.iMadeReadyCounter;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   354
		subReadyCount= TheScheduler.iMadeUnReadyCounter;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   355
			
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   356
		addTot= addReadyCount - *iLastAddReadyCount;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   357
		*iLastAddReadyCount=addReadyCount;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   358
			
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   359
		subTot= subReadyCount - *iLastSubReadyCount;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   360
		*iLastSubReadyCount=subReadyCount;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   361
#endif
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   362
#endif
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   363
		// write the calculated values into the provided data buffer.
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   364
		*Value32(aBuffer, iOffsReadyStateAdd)=addTot; 
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   365
		*Value32(aBuffer, iOffsReadyStateRemove)=subTot; 
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   366
		}
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   367
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   368
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   369
	// Calculate the time slice expire value
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   370
	if (iOffsNumTimeSliceExpire != KStatDisabled)
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   371
		{
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   372
		TUint slicesTot=0;
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   373
		TUint slicesCount;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   374
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   375
#ifndef __X86__
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   376
#ifdef __SMP__	
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   377
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   378
		// for each core, the previous time slice values are subtracted from
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   379
		// the current counter values, and then these values added together.
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   380
		for (core=0; core<cores ;core++)
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   381
			{
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   382
			slicesCount= TheSubSchedulers[core].iTimeSliceExpireCounter;
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   383
			slicesTot+= slicesCount - iLastSlicesCount[core];
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   384
			iLastSlicesCount[core]=slicesCount;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   385
			}
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   386
#else
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   387
		slicesCount= TheScheduler.iTimeSliceExpireCounter;
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   388
		slicesTot= slicesCount - *iLastSlicesCount;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   389
		*iLastSlicesCount=slicesCount;
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   390
#endif
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   391
#endif	
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   392
		// write the calculated values into the provided data buffer.
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   393
		*Value32(aBuffer, iOffsNumTimeSliceExpire) = slicesTot;
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   394
		}
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   395
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   396
	return KErrNone;
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   397
	}
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   398
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   399
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   400
/**
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   401
@internal
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   402
   
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   403
This is called from idle thread, before it entered its idle state.
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   404
For SMP kernels, this is done by the kernel, and the base ports should not call EnterIdle.
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   405
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   406
@param aCore
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   407
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   408
The core for which this code in executing.
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   409
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   410
@pre Interrupts must be disabled
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   411
*/
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   412
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   413
extern "C" TUint KernCoreStats_EnterIdle(TUint aCore)
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   414
	{
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   415
	CHECK_PRECONDITIONS(MASK_INTERRUPTS_DISABLED , "KernCoreStats_EnterIdle");
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   416
	if (KernCoreStats::StatsData)
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   417
		{
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   418
			KernCoreStats::StatsData->DoEnterIdle(aCore); 
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   419
		return (TUint) ETrue;
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   420
		}
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   421
	return (TUint) EFalse;	
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   422
	}
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   423
#ifndef __WINS__
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   424
#ifndef __SMP__
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   425
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   426
/**
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   427
This is called from idle thread, before it enters its idle state.
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   428
For non-SMP kernels, the base port must call this explicitly.
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   429
SMP base ports should not call this, as its called from within the kernel.
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   430
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   431
@pre Interrupts must be disabled
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   432
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   433
@return a cookie that should be passed to LeaveIdle(), after the core leaves idle.
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   434
*/
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   435
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   436
EXPORT_C TUint KernCoreStats::EnterIdle()
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   437
	{
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   438
	CHECK_PRECONDITIONS(MASK_INTERRUPTS_DISABLED , "KernCoreStats::EnterIdle");
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   439
	if (StatsData)
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   440
		{
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   441
		StatsData->DoEnterIdle(0); 
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   442
		return (TUint) ETrue;
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   443
		}
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   444
	return (TUint) EFalse;
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   445
	}
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   446
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   447
#endif
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   448
#endif
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   449
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   450
/**
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   451
@internal
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   452
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   453
The implementation code for KernCoreStats::EnterIdle and KernCoreStats_EnterIdle.
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   454
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   455
@param aCore
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   456
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   457
The core for which this code in executing.
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   458
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   459
@pre Interrupts must be disabled
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   460
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   461
*/
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   462
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   463
void KernCoreStats::DoEnterIdle(TUint aCore)
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   464
	{
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   465
	__SPIN_LOCK(Lock); // This spinlock is doubley important, as it acts as memory barrier for "if (StatsData)"
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   466
	TUint64 timeNow = FASTTIMER;
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   467
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   468
	__ASSERT_DEBUG( ((iCoreMask & (1<<aCore) )==0), FAULT() );
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   469
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   470
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   471
	if (iLastTimeCore)
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   472
		{
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   473
		iLastTimeCore[aCore]=timeNow;
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   474
		iCoreMask|=1<<aCore;
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   475
		}
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   476
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   477
	if (iNumberIdles)
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   478
		iNumberIdles[aCore]++;
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   479
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   480
	if (iTimesCIA)
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   481
		{
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   482
		iTimesCIA[iCoresIdle]+= timeNow-iLastTime;
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   483
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   484
#ifdef __SMP__
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   485
		__ASSERT_DEBUG((iCoresIdle<TheScheduler.iNumCpus), FAULT() );
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   486
#else
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   487
		__ASSERT_DEBUG((iCoresIdle==0), FAULT() );
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   488
#endif
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   489
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   490
		iLastTime=timeNow;
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   491
		iCoresIdle++;
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   492
		}
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   493
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   494
	__SPIN_UNLOCK(Lock);
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   495
	}
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   496
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   497
/**
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   498
This is called from idle thread, after it comes out of its idle state.
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   499
For SMP kernels, this is done by the kernel, and the base ports should not call LeaveIdle.
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   500
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   501
@param aCookie
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   502
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   503
The value returned from EnterIdle should be passed here.
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   504
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   505
@param aCore
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   506
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   507
The core for which this code in executing.
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   508
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   509
@pre Interrupts must be disabled
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   510
*/
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   511
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   512
extern "C" void KernCoreStats_LeaveIdle(TInt aCookie,TUint aCore)
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   513
	{
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   514
	CHECK_PRECONDITIONS(MASK_INTERRUPTS_DISABLED , "KernCoreStats_LeaveIdle");
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   515
	if (aCookie)
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   516
		KernCoreStats::StatsData->DoLeaveIdle(aCore);
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   517
	}
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   518
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   519
#ifndef __WINS__
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   520
#ifndef __SMP__
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   521
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   522
/**
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   523
This is called from idle thread, after it comes out of its idle state.
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   524
For non-SMP kernels, the base port must call this explicitly.
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   525
SMP base ports should not call this, as its called from within the kernel.
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   526
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   527
@param aCookie
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   528
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   529
The value returned from EnterIdle should be passed here.
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   530
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   531
@pre Interrupts must be disabled
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   532
*/
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   533
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   534
EXPORT_C void KernCoreStats::LeaveIdle(TUint aCookie)
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   535
	{
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   536
	CHECK_PRECONDITIONS(MASK_INTERRUPTS_DISABLED , "KernCoreStats::LeaveIdle");
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   537
	if (aCookie)
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   538
		StatsData->DoLeaveIdle(0);
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   539
	}
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   540
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   541
#endif
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   542
#endif
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   543
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   544
/**
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   545
@internal
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   546
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   547
The implementation code for KernCoreStats::LeaveIdle and KernCoreStats_LeaveIdle.
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   548
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   549
@param aCore
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   550
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   551
The core for which this code in executing.
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   552
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   553
@pre Interrupts must be disabled
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   554
*/
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   555
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   556
void KernCoreStats::DoLeaveIdle(TUint aCore)
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   557
	{
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   558
	__SPIN_LOCK(Lock);// This spinlock is doubley important, as it acts as memory barrier for "if (StatsData)"
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   559
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   560
	TUint64 timeNow = FASTTIMER;
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   561
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   562
	if (iTotalTimeIdle)
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   563
		{
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   564
		__ASSERT_DEBUG(iCoreMask&(1<<aCore), FAULT() );
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   565
		iCoreMask&= ~(1<<aCore);
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   566
		iTotalTimeIdle[aCore] += timeNow - iLastTimeCore[aCore];
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   567
		}
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   568
	if (iTimesCIA)
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   569
		{
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   570
		__ASSERT_DEBUG((StatsData->iCoresIdle>0), FAULT() );
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   571
		iTimesCIA[iCoresIdle]+= timeNow-iLastTime;
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   572
		iLastTime=timeNow;
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   573
		iCoresIdle--;
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   574
		}
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   575
	__SPIN_UNLOCK(Lock);
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   576
	}
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   577
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   578
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   579
/**
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   580
@internal
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   581
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   582
Called from Kern::AddEvent
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   583
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   584
This is used to increment the KernCoreStats event counter.
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   585
*/
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   586
void KernCoreStats::AddEvent()
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   587
	{
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   588
	if (StatsData)
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   589
		{
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   590
		TInt ints = __SPIN_LOCK_IRQSAVE(Lock);
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   591
		if (StatsData->iOffsNumEvents!= KStatDisabled)
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   592
			StatsData->iNumEvents++;
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   593
		__SPIN_UNLOCK_IRQRESTORE(Lock, ints);
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   594
		}
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   595
	};
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   596
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   597
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   598
EXPORT_C TInt KernCoreStats::Retire(TInt, TInt)
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   599
	{
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   600
	// DUMMY METHOD
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   601
	return KErrNone;
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   602
	};
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   603
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   604
EXPORT_C TInt KernCoreStats::Engage(TInt)
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   605
	{
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   606
	// DUMMY METHOD
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   607
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   608
	return KErrNone;
947f0dc9f7a8 Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   609
	}