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/* $OpenBSD: intr.h,v 1.43 2009/10/01 20:19:19 kettenis Exp $ */
/*
* Copyright (c) 1997 Per Fogelstrom, Opsycon AB and RTMX Inc, USA.
*
* 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 under OpenBSD by
* Per Fogelstrom, Opsycon AB, Sweden for RTMX Inc, North Carolina USA.
* 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 _POWERPC_INTR_H_
#define _POWERPC_INTR_H_
#define IPL_NONE 0
#define IPL_BIO 1
#define IPL_AUDIO IPL_BIO /* XXX - was defined this val in audio_if.h */
#define IPL_NET 2
#define IPL_TTY 3
#define IPL_VM 4
#define IPL_CLOCK 5
#define IPL_HIGH 6
#define IPL_NUM 7
#define IST_NONE 0
#define IST_PULSE 1
#define IST_EDGE 2
#define IST_LEVEL 3
#if defined(_KERNEL) && !defined(_LOCORE)
#include <sys/evcount.h>
#include <machine/atomic.h>
#define PPC_NIRQ 66
#define PPC_CLK_IRQ 64
#define PPC_STAT_IRQ 65
int splraise(int);
int spllower(int);
void splx(int);
void do_pending_int(void);
extern int imask[IPL_NUM];
/* SPL asserts */
#define splassert(wantipl) /* nothing */
#define splsoftassert(wantipl) /* nothing */
#define SINTBIT(q) (31 - (q))
#define SINTMASK(q) (1 << SINTBIT(q))
#define SPL_CLOCKMASK SINTMASK(SI_NQUEUES)
/* Soft interrupt masks. */
#define IPL_SOFTCLOCK 0
#define IPL_SOFTNET 1
#define IPL_SOFTTTY 2
#define SI_SOFTCLOCK 0 /* for IPL_SOFTCLOCK */
#define SI_SOFTNET 1 /* for IPL_SOFTNET */
#define SI_SOFTTTY 2 /* for IPL_SOFTTY */
#define SINT_ALLMASK (SINTMASK(SI_SOFTCLOCK) | \
SINTMASK(SI_SOFTNET) | SINTMASK(SI_SOFTTTY))
#define SI_NQUEUES 3
#include <machine/mutex.h>
#include <sys/queue.h>
struct soft_intrhand {
TAILQ_ENTRY(soft_intrhand) sih_list;
void (*sih_func)(void *);
void *sih_arg;
struct soft_intrq *sih_siq;
int sih_pending;
};
struct soft_intrq {
TAILQ_HEAD(, soft_intrhand) siq_list;
int siq_si;
struct mutex siq_mtx;
};
void softintr_disestablish(void *);
void softintr_dispatch(int);
void *softintr_establish(int, void (*)(void *), void *);
void softintr_init(void);
void softintr_schedule(void *);
/* XXX For legacy software interrupts. */
extern struct soft_intrhand *softnet_intrhand;
#define setsoftnet() softintr_schedule(softnet_intrhand)
#define SINT_CLOCK SINTMASK(SI_SOFTCLOCK)
#define SINT_NET SINTMASK(SI_SOFTNET)
#define SINT_TTY SINTMASK(SI_SOFTTTY)
#define splbio() splraise(imask[IPL_BIO])
#define splnet() splraise(imask[IPL_NET])
#define spltty() splraise(imask[IPL_TTY])
#define splaudio() splraise(imask[IPL_AUDIO])
#define splclock() splraise(imask[IPL_CLOCK])
#define splvm() splraise(imask[IPL_VM])
#define splsched() splhigh()
#define spllock() splhigh()
#define splstatclock() splhigh()
#define splsoftclock() splraise(SINT_CLOCK)
#define splsoftnet() splraise(SINT_NET|SINT_CLOCK)
#define splsofttty() splraise(SINT_TTY|SINT_NET|SINT_CLOCK)
#define splhigh() splraise(0xffffffff)
#define spl0() spllower(0)
/*
* Interrupt control struct used to control the ICU setup.
*/
struct intrhand {
struct intrhand *ih_next;
int (*ih_fun)(void *);
void *ih_arg;
struct evcount ih_count;
int ih_level;
int ih_irq;
const char *ih_what;
};
extern int ppc_configed_intr_cnt;
#define MAX_PRECONF_INTR 16
extern struct intrhand ppc_configed_intr[MAX_PRECONF_INTR];
void softnet(int isr);
#define PPC_IPI_NOP 0
#define PPC_IPI_DDB 1
void ppc_send_ipi(struct cpu_info *, int);
#endif /* _LOCORE */
#endif /* _POWERPC_INTR_H_ */
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