// Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of the License "Eclipse Public License v1.0"

// which accompanies this distribution, and is available

// at the URL "http://www.eclipse.org/legal/epl-v10.html".

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

// e32\include\nkernsmp\x86\ncern.h

// 

// WARNING: This file contains some APIs which are internal and are subject

//          to change without notice. Such APIs should therefore not be used

//          outside the Kernel and Hardware Services package.

//

/**

 @file

 @publishedPartner

 @prototype

*/

#ifndef __NCERN_H__

#define __NCERN_H__

/** Information needed to boot an AP (x86 specific)

@internalTechnology

*/

struct SX86APBootInfo : public SAPBootInfo

	{

	};

/** Timer frequency specification

Stores a frequency as a fraction of a (separately stored) maximum.

The frequency must be at least 1/256 of the maximum.

@internalTechnology

@prototype

*/

struct STimerMult

	{

	TUint32		iFreq;						// frequency as a fraction of maximum possible, multiplied by 2^32

	TUint32		iInverse;					// 2^24/(iFreq/2^32) = 2^56/iFreq

	};

/** Variant interface block

@internalTechnology

@prototype

*/

struct SVariantInterfaceBlock : public SInterfaceBlockBase

	{

	TUint64		iMaxCpuClock;				// maximum possible CPU clock frequency on this system

	TUint32		iTimestampFreq;				// rate at which timestamp increments

	TUint32		iMaxTimerClock;				// maximum possible local timer clock frequency

	volatile STimerMult* iTimerMult[KMaxCpus];	// timer[i] frequency as a fraction of iMaxTimerClock

	volatile TUint32* iCpuMult[KMaxCpus];	// CPU[i] frequency / iMaxCpuClock * 2^32

	};

// End of file

#endif