NetBSD/sys/arch/arc/include/intr.h

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/* $NetBSD: intr.h,v 1.9 2001/04/13 23:29:58 thorpej Exp $ */
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/*
* Copyright (c) 1998 Jonathan Stone. All rights reserved.
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*
* 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 Jonathan Stone for
* the NetBSD Project.
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* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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 _ARC_INTR_H_
#define _ARC_INTR_H_
#define IPL_NONE 0 /* disable only this interrupt */
#define IPL_BIO 1 /* disable block I/O interrupts */
#define IPL_NET 2 /* disable network interrupts */
#define IPL_TTY 3 /* disable terminal interrupts */
#define IPL_IMP 4 /* memory allocation */
#define IPL_CLOCK 5 /* disable clock interrupts */
#define IPL_STATCLOCK 6 /* disable profiling interrupts */
#if 0 /* XXX */
#define IPL_SERIAL 7 /* disable serial hardware interrupts */
#endif
#define IPL_HIGH 8 /* disable all interrupts */
#define NIPL 9
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/* Interrupt sharing types. */
#define IST_NONE 0 /* none */
#define IST_PULSE 1 /* pulsed */
#define IST_EDGE 2 /* edge-triggered */
#define IST_LEVEL 3 /* level-triggered */
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/* Soft interrupt masks. */
/* XXX - revisit here */
#define SIR_CLOCK 31
#define SIR_NET 30
#define SIR_CLOCKMASK ((1 << SIR_CLOCK))
#define SIR_NETMASK ((1 << SIR_NET) | SIR_CLOCKMASK)
#define SIR_ALLMASK (SIR_CLOCKMASK | SIR_NETMASK)
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#ifdef _KERNEL
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#ifndef _LOCORE
#include <mips/cpuregs.h>
extern int _splraise __P((int));
extern int _spllower __P((int));
extern int _splset __P((int));
extern int _splget __P((void));
extern void _splnone __P((void));
extern void _setsoftintr __P((int));
extern void _clrsoftintr __P((int));
#define setsoftclock() _setsoftintr(MIPS_SOFT_INT_MASK_0)
#define setsoftnet() _setsoftintr(MIPS_SOFT_INT_MASK_1)
#define clearsoftclock() _clrsoftintr(MIPS_SOFT_INT_MASK_0)
#define clearsoftnet() _clrsoftintr(MIPS_SOFT_INT_MASK_1)
/*
* nesting interrupt masks.
*/
#define MIPS_INT_MASK_SPL_SOFT0 MIPS_SOFT_INT_MASK_0
#define MIPS_INT_MASK_SPL_SOFT1 (MIPS_SOFT_INT_MASK_1|MIPS_INT_MASK_SPL_SOFT0)
#define MIPS_INT_MASK_SPL0 (MIPS_INT_MASK_0|MIPS_INT_MASK_SPL_SOFT1)
#define MIPS_INT_MASK_SPL1 (MIPS_INT_MASK_1|MIPS_INT_MASK_SPL0)
#define MIPS_INT_MASK_SPL2 (MIPS_INT_MASK_2|MIPS_INT_MASK_SPL1)
#define MIPS_INT_MASK_SPL3 (MIPS_INT_MASK_3|MIPS_INT_MASK_SPL2)
#define MIPS_INT_MASK_SPL4 (MIPS_INT_MASK_4|MIPS_INT_MASK_SPL3)
#define MIPS_INT_MASK_SPL5 (MIPS_INT_MASK_5|MIPS_INT_MASK_SPL4)
#define MIPS_INT_MASK_SPLHIGH MIPS_INT_MASK_SPL5
#define spl0() (void)_spllower(0)
#define splx(s) (void)_splset(s)
#define splbio() (_splraise(splvec.splbio))
#define splnet() (_splraise(splvec.splnet))
#define spltty() (_splraise(splvec.spltty))
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#define splvm() (_splraise(splvec.splvm))
#define splclock() (_splraise(splvec.splclock))
#define splstatclock() (_splraise(splvec.splstatclock))
#define splhigh() _splraise(MIPS_INT_MASK_SPLHIGH)
#define splsoftclock() _splraise(MIPS_INT_MASK_SPL_SOFT0)
#define splsoftnet() _splraise(MIPS_INT_MASK_SPL_SOFT1)
#define spllowersoftclock() _spllower(MIPS_INT_MASK_SPL_SOFT0)
#define splsched() splhigh()
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#define spllock() splhigh()
#define spllpt() spltty() /* lpt driver */
struct splvec {
int splbio;
int splnet;
int spltty;
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int splvm;
int splclock;
int splstatclock;
};
extern struct splvec splvec;
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/*
* Index into intrcnt[], which is defined in locore
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*/
#define SOFTCLOCK_INTR 0
#define SOFTNET_INTR 1
#define FPU_INTR 2
extern u_long intrcnt[];
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struct clockframe;
void set_intr __P((int, int(*)(u_int, struct clockframe *), int));
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/* XXX - revisit here */
int imask[NIPL];
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#endif /* !_LOCORE */
#endif /* _KERNEL */
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#endif /* _ARC_INTR_H_ */