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112 lines
3.1 KiB
C
112 lines
3.1 KiB
C
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/*====================================================================
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* os_convert.h
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*
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* Copyright 1995, Silicon Graphics, Inc.
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* All Rights Reserved.
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*
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* This is UNPUBLISHED PROPRIETARY SOURCE CODE of Silicon Graphics,
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* Inc.; the contents of this file may not be disclosed to third
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* parties, copied or duplicated in any form, in whole or in part,
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* without the prior written permission of Silicon Graphics, Inc.
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*
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* RESTRICTED RIGHTS LEGEND:
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* Use, duplication or disclosure by the Government is subject to
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* restrictions as set forth in subdivision (c)(1)(ii) of the Rights
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* in Technical Data and Computer Software clause at DFARS
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* 252.227-7013, and/or in similar or successor clauses in the FAR,
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* DOD or NASA FAR Supplement. Unpublished - rights reserved under the
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* Copyright Laws of the United States.
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*====================================================================*/
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/*---------------------------------------------------------------------*
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Copyright (C) 1998 Nintendo. (Originated by SGI)
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$RCSfile: os_convert.h,v $
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$Revision: 1.2 $
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$Date: 1999/04/21 02:53:11 $
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*---------------------------------------------------------------------*/
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#ifndef _OS_CONVERT_H_
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#define _OS_CONVERT_H_
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#ifdef _LANGUAGE_C_PLUS_PLUS
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extern "C" {
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#endif
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#include <PR/ultratypes.h>
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#if defined(_LANGUAGE_C) || defined(_LANGUAGE_C_PLUS_PLUS)
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/**************************************************************************
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*
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* Type definitions
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*
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*/
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#endif /* defined(_LANGUAGE_C) || defined(_LANGUAGE_C_PLUS_PLUS) */
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/**************************************************************************
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*
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* Global definitions
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*
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*/
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#define OS_CLOCK_RATE 62500000LL
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#define OS_CPU_COUNTER (OS_CLOCK_RATE*3/4)
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#if defined(_LANGUAGE_C) || defined(_LANGUAGE_C_PLUS_PLUS)
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/**************************************************************************
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*
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* Macro definitions
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*
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*/
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#define OS_NSEC_TO_CYCLES(n) (((u64)(n)*(OS_CPU_COUNTER/15625000LL))/(1000000000LL/15625000LL))
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#define OS_USEC_TO_CYCLES(n) (((u64)(n)*(OS_CPU_COUNTER/15625LL))/(1000000LL/15625LL))
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#define OS_CYCLES_TO_NSEC(c) (((u64)(c)*(1000000000LL/15625000LL))/(OS_CPU_COUNTER/15625000LL))
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#define OS_CYCLES_TO_USEC(c) (((u64)(c)*(1000000LL/15625LL))/(OS_CPU_COUNTER/15625LL))
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/* OS_K?_TO_PHYSICAL macro bug fix for CodeWarrior */
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#ifndef __MWERKS__
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#define OS_K0_TO_PHYSICAL(x) (u32)(((char *)(x)-0x80000000))
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#define OS_K1_TO_PHYSICAL(x) (u32)(((char *)(x)-0xa0000000))
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#else
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#define OS_K0_TO_PHYSICAL(x) ((char *)(x)-0x80000000)
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#define OS_K1_TO_PHYSICAL(x) ((char *)(x)-0xa0000000)
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#endif
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#define OS_PHYSICAL_TO_K0(x) (void *)(((u32)(x)+0x80000000))
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#define OS_PHYSICAL_TO_K1(x) (void *)(((u32)(x)+0xa0000000))
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/**************************************************************************
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*
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* Extern variables
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*
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*/
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/**************************************************************************
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*
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* Function prototypes
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*
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*/
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/* Address translation routines and macros */
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extern u32 osVirtualToPhysical(void *);
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extern void * osPhysicalToVirtual(u32);
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#endif /* defined(_LANGUAGE_C) || defined(_LANGUAGE_C_PLUS_PLUS) */
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#ifdef _LANGUAGE_C_PLUS_PLUS
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}
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#endif
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#endif /* !_OS_CONVERT_H_ */
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