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/* $OpenBSD: psl.h,v 1.2 1996/12/28 06:25:23 rahnds Exp $ */
/* $NetBSD: psl.h,v 1.1 1996/09/30 16:34:32 ws Exp $ */
/*
* Copyright (C) 1995, 1996 Wolfgang Solfrank.
* Copyright (C) 1995, 1996 TooLs GmbH.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by TooLs GmbH.
* 4. The name of TooLs GmbH may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _MACHINE_PSL_H_
#define _MACHINE_PSL_H_
/*
* Flags in MSR:
*/
#define PSL_POW 0x00040000
#define PSL_ILE 0x00010000
#define PSL_EE 0x00008000
#define PSL_PR 0x00004000
#define PSL_FP 0x00002000
#define PSL_ME 0x00001000
#define PSL_FE0 0x00000800
#define PSL_SE 0x00000400
#define PSL_BE 0x00000200
#define PSL_FE1 0x00000100
#define PSL_IP 0x00000040
#define PSL_IR 0x00000020
#define PSL_DR 0x00000010
#define PSL_RI 0x00000002
#define PSL_LE 0x00000001
/*
* Floating-point exception modes:
*/
#define PSL_FE_DIS 0
#define PSL_FE_NONREC PSL_FE1
#define PSL_FE_REC PSL_FE0
#define PSL_FE_PREC (PSL_FE0 | PSL_FE1)
#define PSL_FE_DFLT PSL_FE_DIS
/*
* Note that PSL_POW and PSL_ILE are not in the saved copy of the MSR
*/
#define PSL_MBO 0
#define PSL_MBZ 0
#define PSL_USERSET (PSL_EE | PSL_PR | PSL_ME | PSL_IR | PSL_DR | PSL_RI)
#define PSL_USERSTATIC (PSL_USERSET | PSL_IP | 0x87c0008c)
#ifdef _KERNEL
/*
* Current processor level.
*/
#ifndef _LOCORE
extern int cpl;
extern int clockpending, softclockpending, softnetpending;
#endif
#define SPLBIO 0x01
#define SPLNET 0x02
#define SPLTTY 0x04
#define SPLIMP 0x08
#define SPLSOFTCLOCK 0x10
#define SPLSOFTNET 0x20
#define SPLCLOCK 0x80
#define SPLMACHINE 0x0f /* levels handled by machine interface */
#ifndef _LOCORE
extern int splx __P((int));
extern int splraise __P((int));
extern __inline int
splhigh()
{
return splraise(-1);
}
extern __inline int
spl0()
{
return splx(0);
}
extern __inline int
splbio()
{
return splraise(SPLBIO | SPLSOFTCLOCK | SPLSOFTNET);
}
extern __inline int
splnet()
{
return splraise(SPLNET | SPLSOFTCLOCK | SPLSOFTNET);
}
extern __inline int
spltty()
{
return splraise(SPLTTY | SPLSOFTCLOCK | SPLSOFTNET);
}
extern __inline int
splimp()
{
return splraise(SPLIMP | SPLSOFTCLOCK | SPLSOFTNET);
}
extern __inline int
splclock()
{
return splraise(SPLCLOCK | SPLSOFTCLOCK | SPLSOFTNET);
}
extern __inline int
splsoftclock()
{
return splraise(SPLSOFTCLOCK);
}
extern __inline int
splsoftnet()
{
return splraise(SPLSOFTNET);
}
extern __inline void
setsoftclock()
{
softclockpending = 1;
if (!(cpl & SPLSOFTCLOCK))
splx(cpl);
}
extern __inline void
setsoftnet()
{
softnetpending = 1;
if (!(cpl & SPLSOFTNET))
splx(cpl);
}
#endif /* !_LOCORE */
#define splstatclock() splclock()
#endif /* _KERNEL */
#endif /* _MACHINE_PSL_H_ */
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