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/* $OpenBSD: intr.h,v 1.4 1998/11/23 03:32:19 mickey Exp $ */
/*
* Copyright (c) 1990,1991,1992,1994 The University of Utah and
* the Computer Systems Laboratory at the University of Utah (CSL).
* All rights reserved.
*
* Permission to use, copy, modify and distribute this software is hereby
* granted provided that (1) source code retains these copyright, permission,
* and disclaimer notices, and (2) redistributions including binaries
* reproduce the notices in supporting documentation, and (3) all advertising
* materials mentioning features or use of this software display the following
* acknowledgement: ``This product includes software developed by the
* Computer Systems Laboratory at the University of Utah.''
*
* THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
* IS" CONDITION. THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
* ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* CSL requests users of this software to return to csl-dist@cs.utah.edu any
* improvements that they make and grant CSL redistribution rights.
*
* Utah $Hdr: machspl.h 1.16 94/12/14$
* Author: Jeff Forys, Bob Wheeler, University of Utah CSL
*/
#ifndef _MACHINE_INTR_H_
#define _MACHINE_INTR_H_
#define CPU_NINTS 32
/* hardwired clock int line */
#define INT_ITMR (0x80000000)
#define IPL_NONE 0
#define IPL_BIO 1
#define IPL_NET 2
#define IPL_TTY 3
#define IPL_CLOCK 4
#define IPL_HIGH 5
#define IST_NONE 0
#define IST_PULSE 1
#define IST_EDGE 2
#define IST_LEVEL 3
#if !defined(_LOCORE)
/*
* Define the machine-independent SPL routines in terms of splx().
* To prevent cluttering the global spl() namespace, routines that
* need machine-dependent SPLs should roll their own.
*
* If compiling with GCC, it's easy to inline spl's with constant
* arguments. However, when the argument can be variable, there
* is little or no win; as a result, splx() is not inline'd.
*/
#define __splhigh(splhval) ({ \
register u_int _ctl_r; \
__asm __volatile("mfctl %%cr15,%0" : "=r" (_ctl_r)); \
__asm __volatile("mtctl %0,%%cr15" :: "r" (splhval)); \
__asm __volatile("rsm 1, %%r0"::); \
_ctl_r; \
})
#define __spllow(spllval) ({ \
register u_int _ctl_r; \
__asm __volatile("mfctl %%cr15,%0" : "=r" (_ctl_r)); \
__asm __volatile("mtctl %0,%%cr15" :: "r" (spllval)); \
__asm __volatile("ssm 1, %%r0"::); \
_ctl_r; \
})
#define spl0() __spllow(0xffffffff)
#define splsoft() __spllow(INT_ITMR)
#define splsoftnet() splsoft()
#define splsoftclock() splsoft()
#define splnet() __spllow(INT_ITMR)
#define splbio() __spllow(INT_ITMR)
#define splimp() __spllow(INT_ITMR)
#define spltty() __spllow(INT_ITMR)
#define splclock() __spllow(0)
#define splstatclock() __spllow(0)
#define splhigh() __splhigh(0)
int splx __P((int));
/* software interrupt register */
extern u_int32_t sir;
#define SIR_CLOCK 0x01
#define SIR_NET 0x02
#define setsoftclock() (sir |= SIR_CLOCK)
#define setsoftnet() (sir |= SIR_NET)
#endif /* !_LOCORE */
#endif /* _MACHINE_INTR_H_ */
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