kernel/eka/include/nkernsmp/arm/ncern.h
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     1 // Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
       
     2 // All rights reserved.
       
     3 // This component and the accompanying materials are made available
       
     4 // under the terms of the License "Eclipse Public License v1.0"
       
     5 // which accompanies this distribution, and is available
       
     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     7 //
       
     8 // Initial Contributors:
       
     9 // Nokia Corporation - initial contribution.
       
    10 //
       
    11 // Contributors:
       
    12 //
       
    13 // Description:
       
    14 // e32\include\nkernsmp\arm\ncern.h
       
    15 // 
       
    16 // WARNING: This file contains some APIs which are internal and are subject
       
    17 //          to change without notice. Such APIs should therefore not be used
       
    18 //          outside the Kernel and Hardware Services package.
       
    19 //
       
    20 
       
    21 /**
       
    22  @file
       
    23  @publishedPartner
       
    24  @prototype
       
    25 */
       
    26 
       
    27 #ifndef __NCERN_H__
       
    28 #define __NCERN_H__
       
    29 
       
    30 #ifdef __FIQ_IS_UNCONTROLLED__
       
    31 #define	__ASM_CLI()							CPSIDI			/* Disable all interrupts */
       
    32 #define	__ASM_STI()							CPSIEI			/* Enable all interrupts */
       
    33 #define	__ASM_CLI1()						CPSIDI			/* Disable IRQ only */
       
    34 #define	__ASM_STI1()						CPSIEI			/* Enable IRQ only */
       
    35 #define	__ASM_CLI2()										/* Disable FIQ only */
       
    36 #define	__ASM_STI2()										/* Enable FIQ only */
       
    37 
       
    38 #define	__ASM_CLI_MODE(mode)				CPSIDIM(mode)	/* Disable all interrupts and change mode */
       
    39 #define	__ASM_STI_MODE(mode)				CPSIEIM(mode)	/* Enable all interrupts and change mode */
       
    40 #define	__ASM_CLI1_MODE(mode)				CPSIDIM(mode)	/* Disable IRQ only and change mode */
       
    41 #define	__ASM_STI1_MODE(mode)				CPSIEIM(mode)	/* Enable IRQ only and change mode */
       
    42 #define	__ASM_CLI2_MODE(mode)				CPSCHM(mode)	/* Disable FIQ only and change mode */
       
    43 #define	__ASM_STI2_MODE(mode)				CPSCHM(mode)	/* Enable FIQ only and change mode */
       
    44 
       
    45 #else
       
    46 #define	__ASM_CLI()							CPSIDIF			/* Disable all interrupts */
       
    47 #define	__ASM_STI()							CPSIEIF			/* Enable all interrupts */
       
    48 #define	__ASM_CLI1()						CPSIDI			/* Disable IRQ only */
       
    49 #define	__ASM_STI1()						CPSIEI			/* Enable IRQ only */
       
    50 #define	__ASM_CLI2()						CPSIDF			/* Disable FIQ only */
       
    51 #define	__ASM_STI2()						CPSIEF			/* Enable FIQ only */
       
    52 
       
    53 #define	__ASM_CLI_MODE(mode)				CPSIDIFM(mode)	/* Disable all interrupts and change mode */
       
    54 #define	__ASM_STI_MODE(mode)				CPSIEIFM(mode)	/* Enable all interrupts and change mode */
       
    55 #define	__ASM_CLI1_MODE(mode)				CPSIDIM(mode)	/* Disable IRQ only and change mode */
       
    56 #define	__ASM_STI1_MODE(mode)				CPSIEIM(mode)	/* Enable IRQ only and change mode */
       
    57 #define	__ASM_CLI2_MODE(mode)				CPSIDFM(mode)	/* Disable FIQ only and change mode */
       
    58 #define	__ASM_STI2_MODE(mode)				CPSIEFM(mode)	/* Enable FIQ only and change mode */
       
    59 #endif
       
    60 
       
    61 /** Information needed to boot an AP (ARM specific)
       
    62 
       
    63 @internalTechnology
       
    64 */
       
    65 struct SArmAPBootInfo : public SAPBootInfo
       
    66 	{
       
    67 	TLinAddr	iAPBootLin;			// linear address of AP boot page (uncached)
       
    68 	T_UintPtr	iAPBootPhys;		// physical address of AP boot page (uncached)
       
    69 	TLinAddr	iAPBootCodeLin;		// linear address of AP boot code (part of bootstrap)
       
    70 	T_UintPtr	iAPBootCodePhys;	// physical address of AP boot code (part of bootstrap)
       
    71 	T_UintPtr	iAPBootPageDirPhys;	// physical address of AP boot page directory
       
    72 	TLinAddr	iInitR13Fiq;		// initial value for R13_fiq
       
    73 	TLinAddr	iInitR13Irq;		// initial value for R13_irq
       
    74 	TLinAddr	iInitR13Abt;		// initial value for R13_abt
       
    75 	TLinAddr	iInitR13Und;		// initial value for R13_und
       
    76 	};
       
    77 
       
    78 
       
    79 /** Timer frequency specification
       
    80 
       
    81 Stores a frequency as a fraction of a (separately stored) maximum.
       
    82 The frequency must be at least 1/256 of the maximum.
       
    83 
       
    84 @internalTechnology
       
    85 @prototype
       
    86 */
       
    87 struct STimerMult
       
    88 	{
       
    89 	TUint32		iFreq;						// frequency as a fraction of maximum possible, multiplied by 2^32
       
    90 	TUint32		iInverse;					// 2^24/(iFreq/2^32) = 2^56/iFreq
       
    91 	};
       
    92 
       
    93 /** Variant interface block
       
    94 @internalTechnology
       
    95 @prototype
       
    96 */
       
    97 struct SVariantInterfaceBlock : public SInterfaceBlockBase
       
    98 	{
       
    99 	TUint64		iMaxCpuClock;				// maximum possible CPU clock frequency on this system
       
   100 	TUint16		iTimerGap1;
       
   101 	TUint16		iTimerGap2;
       
   102 	TUint32		iMaxTimerClock;				// maximum possible local timer clock frequency
       
   103 	TLinAddr	iScuAddr;					// address of SCU
       
   104 	TLinAddr	iGicDistAddr;				// address of GIC Distributor
       
   105 	TLinAddr	iGicCpuIfcAddr;				// address of GIC CPU interface (must be same for all CPUs)
       
   106 	TLinAddr	iLocalTimerAddr;			// address of per-CPU timer (must be same for all CPUs)
       
   107 	volatile STimerMult* iTimerMult[KMaxCpus];	// timer[i] frequency / iMaxTimerClock * 2^32
       
   108 	volatile TUint32* iCpuMult[KMaxCpus];	// CPU[i] frequency / iMaxCpuClock * 2^32
       
   109 	};
       
   110 
       
   111 // End of file
       
   112 #endif