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/* $OpenBSD: intr.h,v 1.7 2018/05/30 13:54:09 mpi Exp $ */
/* $NetBSD: intr.h,v 1.12 2003/06/16 20:00:59 thorpej Exp $ */
/*
* Copyright (c) 2001, 2003 Wasabi Systems, Inc.
* All rights reserved.
*
* Written by Jason R. Thorpe for Wasabi Systems, Inc.
*
* 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 for the NetBSD Project by
* Wasabi Systems, Inc.
* 4. The name of Wasabi Systems, Inc. may not be used to endorse
* or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC
* 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 _MACHINE_INTR_H_
#define _MACHINE_INTR_H_
#ifdef _KERNEL
/* Interrupt priority "levels". */
#define IPL_NONE 0 /* nothing */
#define IPL_SOFT 1 /* generic software interrupts */
#define IPL_SOFTCLOCK 2 /* software clock interrupt */
#define IPL_SOFTNET 3 /* software network interrupt */
#define IPL_SOFTTTY 4 /* software serial interrupt */
#define IPL_BIO 5 /* block I/O */
#define IPL_NET 6 /* network */
#define IPL_TTY 7 /* terminals */
#define IPL_VM 8 /* memory allocation */
#define IPL_AUDIO 9 /* audio device */
#define IPL_CLOCK 10 /* clock interrupt */
#define IPL_STATCLOCK 11 /* statistics clock interrupt */
#define IPL_SCHED 12 /* everything */
#define IPL_HIGH 12 /* everything */
#define NIPL 13
/* Interrupt priority "flags". */
#define IPL_MPSAFE 0 /* no "mpsafe" interrupts */
#define IPL_MPFLOOR IPL_NONE /* no MP on armv7 */
/* 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 */
#define IST_LEVEL_LOW IST_LEVEL
#define IST_LEVEL_HIGH 4
#define IST_EDGE_FALLING IST_EDGE
#define IST_EDGE_RISING 5
#define IST_EDGE_BOTH 6
#ifndef _LOCORE
#include <sys/device.h>
#include <sys/queue.h>
int splraise(int);
int spllower(int);
void splx(int);
void arm_do_pending_intr(int);
void arm_set_intr_handler(int (*raise)(int), int (*lower)(int),
void (*x)(int), void (*setipl)(int),
void *(*intr_establish)(int irqno, int level, int (*func)(void *),
void *cookie, char *name),
void (*intr_disestablish)(void *cookie),
const char *(*intr_string)(void *cookie),
void (*intr_handle)(void *));
struct arm_intr_func {
int (*raise)(int);
int (*lower)(int);
void (*x)(int);
void (*setipl)(int);
void *(*intr_establish)(int irqno, int level, int (*func)(void *),
void *cookie, char *name);
void (*intr_disestablish)(void *cookie);
const char *(*intr_string)(void *cookie);
};
extern struct arm_intr_func arm_intr_func;
#define splraise(cpl) (arm_intr_func.raise(cpl))
#define _splraise(cpl) (arm_intr_func.raise(cpl))
#define spllower(cpl) (arm_intr_func.lower(cpl))
#define splx(cpl) (arm_intr_func.x(cpl))
#define splhigh() splraise(IPL_HIGH)
#define splsoft() splraise(IPL_SOFT)
#define splsoftclock() splraise(IPL_SOFTCLOCK)
#define splsoftnet() splraise(IPL_SOFTNET)
#define splbio() splraise(IPL_BIO)
#define splnet() splraise(IPL_NET)
#define spltty() splraise(IPL_TTY)
#define splvm() splraise(IPL_VM)
#define splaudio() splraise(IPL_AUDIO)
#define splclock() splraise(IPL_CLOCK)
#define splstatclock() splraise(IPL_STATCLOCK)
#define spl0() spllower(IPL_NONE)
#define splsched() splhigh()
#define spllock() splhigh()
void intr_barrier(void *);
void arm_init_smask(void); /* XXX */
extern uint32_t arm_smask[NIPL];
void arm_setsoftintr(int si);
#define _setsoftintr arm_setsoftintr
#include <arm/softintr.h>
void *arm_intr_establish(int irqno, int level, int (*func)(void *),
void *cookie, char *name);
void arm_intr_disestablish(void *cookie);
const char *arm_intr_string(void *cookie);
/* XXX - this is probably the wrong location for this */
void arm_clock_register(void (*)(void), void (*)(u_int), void (*)(int),
void (*)(void));
struct cpu_info;
struct interrupt_controller {
int ic_node;
void *ic_cookie;
void *(*ic_establish)(void *, int *, int, int (*)(void *),
void *, char *);
void (*ic_disestablish)(void *);
void (*ic_route)(void *, int, struct cpu_info *);
LIST_ENTRY(interrupt_controller) ic_list;
uint32_t ic_phandle;
uint32_t ic_cells;
};
void arm_intr_init_fdt(void);
void arm_intr_register_fdt(struct interrupt_controller *);
void *arm_intr_establish_fdt(int, int, int (*)(void *),
void *, char *);
void *arm_intr_establish_fdt_idx(int, int, int, int (*)(void *),
void *, char *);
void arm_intr_disestablish_fdt(void *);
void arm_intr_route(void *, int, struct cpu_info *);
void *arm_intr_parent_establish_fdt(void *, int *, int,
int (*)(void *), void *, char *);
void arm_intr_parent_disestablish_fdt(void *);
#ifdef DIAGNOSTIC
/*
* Although this function is implemented in MI code, it must be in this MD
* header because we don't want this header to include MI includes.
*/
void splassert_fail(int, int, const char *);
extern int splassert_ctl;
void arm_splassert_check(int, const char *);
#define splassert(__wantipl) do { \
if (splassert_ctl > 0) { \
arm_splassert_check(__wantipl, __func__); \
} \
} while (0)
#define splsoftassert(wantipl) splassert(wantipl)
#else
#define splassert(wantipl) do { /* nothing */ } while (0)
#define splsoftassert(wantipl) do { /* nothing */ } while (0)
#endif
#endif /* ! _LOCORE */
#define ARM_IRQ_HANDLER arm_intr
#endif /* _KERNEL */
#endif /* _MACHINE_INTR_H_ */
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