NetBSD/sys/arch/hp300/include/intr.h

153 lines
5.0 KiB
C

/* $NetBSD: intr.h,v 1.11 2001/04/13 23:29:59 thorpej Exp $ */
/*-
* Copyright (c) 1996, 1997, 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe.
*
* 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 the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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 _HP300_INTR_H_
#define _HP300_INTR_H_
#include <machine/psl.h>
#ifdef _HP300_INTR_H_PRIVATE
#include <sys/queue.h>
/*
* The location and size of the autovectored interrupt portion
* of the vector table.
*/
#define ISRLOC 0x18
#define NISR 8
struct isr {
LIST_ENTRY(isr) isr_link;
int (*isr_func) __P((void *));
void *isr_arg;
int isr_ipl;
int isr_priority;
};
#endif /* _HP300_INTR_H_PRIVATE */
/*
* Interrupt "levels". These are a more abstract representation
* of interrupt levels, and do not have the same meaning as m68k
* CPU interrupt levels. They serve two purposes:
*
* - properly order ISRs in the list for that CPU ipl
* - compute CPU PSL values for the spl*() calls.
*/
#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_TTYNOBUF 4 /* IPL_TTY + higher ISR priority */
#define IPL_CLOCK 5 /* disable clock interrupts */
#define IPL_HIGH 6 /* disable all interrupts */
/*
* Convert PSL values to CPU IPLs and vice-versa.
*/
#define PSLTOIPL(x) (((x) >> 8) & 0xf)
#define IPLTOPSL(x) ((((x) & 0xf) << 8) | PSL_S)
#ifdef _KERNEL
/* spl0 requires checking for software interrupts */
/*
* This array contains the appropriate PSL_S|PSL_IPL? values
* to raise interrupt priority to the requested level.
*/
extern unsigned short hp300_ipls[];
#define HP300_IPL_SOFT 0
#define HP300_IPL_BIO 1
#define HP300_IPL_NET 2
#define HP300_IPL_TTY 3
#define HP300_IPL_IMP 4
#define HP300_IPL_CLOCK 5
#define HP300_IPL_HIGH 6
#define HP300_NIPLS 7
/* These spl calls are _not_ to be used by machine-independent code. */
#define splhil() splraise1()
#define splkbd() splhil()
/* These spl calls are used by machine-independent code. */
#define spllowersoftclock() spl1()
#define splsoft() splraise1()
#define splsoftclock() splsoft()
#define splsoftnet() splsoft()
#define splbio() _splraise(hp300_ipls[HP300_IPL_BIO])
#define splnet() _splraise(hp300_ipls[HP300_IPL_NET])
#define spltty() _splraise(hp300_ipls[HP300_IPL_TTY])
#define splvm() _splraise(hp300_ipls[HP300_IPL_IMP])
#define splclock() spl6()
#define splstatclock() splclock()
#define splhigh() spl7()
#define splsched() spl7()
#define spllock() spl7()
/* watch out for side effects */
#define splx(s) ((s) & PSL_IPL ? _spl((s)) : spl0())
/*
* Simulated software interrupt register.
*/
extern volatile u_int8_t ssir;
#define SIR_NET 0x01
#define SIR_CLOCK 0x02
#define siron(mask) \
__asm __volatile ( "orb %1,%0" : "=m" (ssir) : "i" ((mask)))
#define siroff(mask) \
__asm __volatile ( "andb %1,%0" : "=m" (ssir) : "ir" (~(mask)));
#define setsoftnet() siron(SIR_NET)
#define setsoftclock() siron(SIR_CLOCK)
/* locore.s */
int spl0 __P((void));
/* intr.c */
void intr_init __P((void));
void *intr_establish __P((int (*)(void *), void *, int, int));
void intr_disestablish __P((void *));
void intr_dispatch __P((int));
void intr_printlevels __P((void));
#endif /* _KERNEL */
#endif /* _HP300_INTR_H_ */