os_convert.h
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/*====================================================================
* os_convert.h
*
* Copyright 1995, Silicon Graphics, Inc.
* All Rights Reserved.
*
* This is UNPUBLISHED PROPRIETARY SOURCE CODE of Silicon Graphics,
* Inc.; the contents of this file may not be disclosed to third
* parties, copied or duplicated in any form, in whole or in part,
* without the prior written permission of Silicon Graphics, Inc.
*
* RESTRICTED RIGHTS LEGEND:
* Use, duplication or disclosure by the Government is subject to
* restrictions as set forth in subdivision (c)(1)(ii) of the Rights
* in Technical Data and Computer Software clause at DFARS
* 252.227-7013, and/or in similar or successor clauses in the FAR,
* DOD or NASA FAR Supplement. Unpublished - rights reserved under the
* Copyright Laws of the United States.
*====================================================================*/
/*---------------------------------------------------------------------*
Copyright (C) 1998 Nintendo. (Originated by SGI)
$RCSfile: os_convert.h,v $
$Revision: 1.1.1.2 $
$Date: 2002/10/29 08:06:34 $
*---------------------------------------------------------------------*/
#ifndef _OS_CONVERT_H_
#define _OS_CONVERT_H_
#ifdef _LANGUAGE_C_PLUS_PLUS
extern "C" {
#endif
#include <PR/ultratypes.h>
#if defined(_LANGUAGE_C) || defined(_LANGUAGE_C_PLUS_PLUS)
/**************************************************************************
*
* Type definitions
*
*/
#endif /* defined(_LANGUAGE_C) || defined(_LANGUAGE_C_PLUS_PLUS) */
/**************************************************************************
*
* Global definitions
*
*/
#define OS_CLOCK_RATE 62500000LL
#define OS_CPU_COUNTER (OS_CLOCK_RATE*3/4)
#if defined(_LANGUAGE_C) || defined(_LANGUAGE_C_PLUS_PLUS)
/**************************************************************************
*
* Macro definitions
*
*/
#define OS_NSEC_TO_CYCLES(n) (((u64)(n)*(OS_CPU_COUNTER/15625000LL))/(1000000000LL/15625000LL))
#define OS_USEC_TO_CYCLES(n) (((u64)(n)*(OS_CPU_COUNTER/15625LL))/(1000000LL/15625LL))
#define OS_CYCLES_TO_NSEC(c) (((u64)(c)*(1000000000LL/15625000LL))/(OS_CPU_COUNTER/15625000LL))
#define OS_CYCLES_TO_USEC(c) (((u64)(c)*(1000000LL/15625LL))/(OS_CPU_COUNTER/15625LL))
/* OS_K?_TO_PHYSICAL macro bug fix for CodeWarrior */
#ifndef __MWERKS__
#define OS_K0_TO_PHYSICAL(x) (u32)(((char *)(x)-0x80000000))
#define OS_K1_TO_PHYSICAL(x) (u32)(((char *)(x)-0xa0000000))
#else
#define OS_K0_TO_PHYSICAL(x) ((char *)(x)-0x80000000)
#define OS_K1_TO_PHYSICAL(x) ((char *)(x)-0xa0000000)
#endif
#define OS_PHYSICAL_TO_K0(x) (void *)(((u32)(x)+0x80000000))
#define OS_PHYSICAL_TO_K1(x) (void *)(((u32)(x)+0xa0000000))
/**************************************************************************
*
* Extern variables
*
*/
/**************************************************************************
*
* Function prototypes
*
*/
/* Address translation routines and macros */
extern u32 osVirtualToPhysical(void *);
extern void * osPhysicalToVirtual(u32);
#endif /* defined(_LANGUAGE_C) || defined(_LANGUAGE_C_PLUS_PLUS) */
#ifdef _LANGUAGE_C_PLUS_PLUS
}
#endif
#endif /* !_OS_CONVERT_H_ */