162 lines
4.5 KiB
C
162 lines
4.5 KiB
C
/* $NetBSD: intr.h,v 1.17 2007/03/04 09:59:10 tsutsui Exp $ */
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/*
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*
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* Copyright (c) 1998 NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Minoura Makoto and Jason R. Thorpe.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by The NetBSD Foundation
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* Inc. and its contributers.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _NEWS68K_INTR_H_
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#define _NEWS68K_INTR_H_
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#include <sys/device.h>
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#include <sys/queue.h>
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#include <machine/psl.h>
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#include <m68k/asm_single.h>
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#define IPL_NONE 0
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#define IPL_SOFTCLOCK 1
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#define IPL_SOFTNET 2
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#define IPL_SOFTSERIAL 3
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#define IPL_SOFT 4
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#define IPL_BIO 5
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#define IPL_NET 6
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#define IPL_TTY 7
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#define IPL_VM 8
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#define IPL_SERIAL 9
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#define IPL_CLOCK 10
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#define IPL_STATCLOCK IPL_CLOCK
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#define IPL_HIGH 11
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#define IPL_SCHED IPL_HIGH
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#define IPL_LOCK IPL_HIGH
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#define NIPL 12
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#define SI_SOFTSERIAL 0
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#define SI_SOFTNET 1
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#define SI_SOFTCLOCK 2
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#define SI_SOFT 3
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#define SI_NQUEUES 4
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#define SI_QUEUENAMES { \
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"serial", \
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"net", \
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"clock", \
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"misc", \
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}
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typedef int ipl_t;
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typedef struct {
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ipl_t _psl;
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} ipl_cookie_t;
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ipl_cookie_t makeiplcookie(ipl_t);
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static inline int
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splraiseipl(ipl_cookie_t icookie)
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{
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return _splraise(icookie._psl);
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}
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static __inline void
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splx(int sr)
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{
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__asm volatile("movw %0,%%sr" : : "di" (sr));
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}
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/*
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* news68k can handle software interrupts by its own hardware
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* so has no need to check for any simulated interrupts, etc.
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*/
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#define spl0() _spl0()
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#define splsoft() splraise2()
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#define splsoftclock() splsoft()
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#define splsoftnet() splsoft()
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#define splsoftserial() splsoft()
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#define splbio() splraise4()
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#define splnet() splraise4()
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#define spltty() splraise5()
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#define splvm() splraise5()
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#define splserial() splraise5()
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#define splclock() splraise6()
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#define splstatclock() splclock()
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#define splhigh() spl7()
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#define splsched() spl7()
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#define spllock() spl7()
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/*
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* simulated software interrupt register
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*/
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#define SOFTINTR_IPL 2
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extern volatile uint8_t *ctrl_int2;
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#define setsoft(x) (x = 0)
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#define softintr_assert() (*ctrl_int2 = 0xff)
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#define softintr_clear() (*ctrl_int2 = 0)
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struct news68k_soft_intrhand {
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LIST_ENTRY(news68k_soft_intrhand) sih_q;
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struct news68k_soft_intr *sih_intrhead;
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void (*sih_fn)(void *);
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void *sih_arg;
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volatile int sih_pending;
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};
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struct news68k_soft_intr {
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LIST_HEAD(, news68k_soft_intrhand) nsi_q;
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struct evcnt nsi_evcnt;
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volatile unsigned char nsi_ssir;
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};
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void *softintr_establish(int, void (*)(void *), void *);
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void softintr_disestablish(void *);
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void softintr_init(void);
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void softintr_dispatch(void);
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#define softintr_schedule(arg) \
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do { \
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struct news68k_soft_intrhand *__sih = (arg); \
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__sih->sih_pending = 1; \
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setsoft(__sih->sih_intrhead->nsi_ssir); \
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softintr_assert(); \
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} while (/*CONSTCOND*/ 0)
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/* XXX For legacy software interrupts */
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extern struct news68k_soft_intrhand *softnet_intrhand;
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#define setsoftnet() softintr_schedule(softnet_intrhand)
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#endif /* _NEWS68K_INTR_H_ */
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