/* $NetBSD: intr.h,v 1.19 2022/07/11 09:39:10 martin Exp $ */
/*-
* Copyright (c) 2007 Michael Lorenz
* All rights reserved.
*
* 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.
*
* 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 _LOCORE
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: intr.h,v 1.19 2022/07/11 09:39:10 martin Exp $");
#endif
#ifndef _POWERPC_INTR_MACHDEP_H_
#define _POWERPC_INTR_MACHDEP_H_
#if 0 /* PR port-powerpc/56922: fast softints are broken on powerpc */
#define __HAVE_FAST_SOFTINTS 1
#endif
/* Interrupt priority `levels'. */
#define IPL_NONE 0 /* nothing */
#define IPL_SOFTCLOCK 1 /* timeouts */
#define IPL_SOFTBIO 2 /* block I/O */
#define IPL_SOFTNET 3 /* protocol stacks */
#define IPL_SOFTSERIAL 4 /* serial */
#define IPL_VM 5 /* memory allocation */
#define IPL_SCHED 6
#define IPL_HIGH 7 /* everything */
#define NIPL 8
/* Interrupt sharing types. */
#define IST_NONE 0 /* none */
#define IST_PULSE 1 /* pulsed */
#define IST_EDGE 2 /* falling edge triggered */
#define IST_LEVEL 3 /* low level triggered */
#define IST_EDGE_FALLING IST_EDGE
#define IST_EDGE_RISING 4 /* rising edge triggered */
#define IST_LEVEL_LOW IST_LEVEL
#define IST_LEVEL_HIGH 5 /* high level triggered */
#if !defined(_LOCORE)
void * intr_establish(int, int, int, int (*)(void *), void *);
void * intr_establish_xname(int, int, int, int (*)(void *), void *,
const char *);
void intr_disestablish(void *);
const char *
intr_typename(int);
int splraise(int);
int spllower(int);
void splx(int);
#if !defined(_MODULE)
#include <powerpc/softint.h>
void genppc_cpu_configure(void);
/*
* Interrupt handler chains. intr_establish() inserts a handler into
* the list. The handler is called with its (single) argument.
*/
struct intrhand {
int (*ih_fun)(void *);
void *ih_arg;
struct intrhand *ih_next;
int ih_ipl;
int ih_virq;
char ih_xname[INTRDEVNAMEBUF];
};
void softint_fast_dispatch(struct lwp *, int);
#ifdef __HAVE_FAST_SOFTINTS
#define softint_init_md powerpc_softint_init_md
#define softint_trigger powerpc_softint_trigger
#endif
#ifdef __IMASK_T
typedef __IMASK_T imask_t;
#else
typedef uint32_t imask_t;
#endif
#define NVIRQ (sizeof(imask_t)*8) /* 32 virtual IRQs */
#ifndef NIRQ
#define NIRQ 256 /* up to 256 HW IRQs */
#endif
#define HWIRQ_MAX (NVIRQ - 1)
#define HWIRQ_MASK (~(imask_t)0 >> 1)
#define PIC_VIRQ_TO_MASK(v) __BIT(HWIRQ_MAX - (v))
#define PIC_VIRQ_MS_PENDING(p) __builtin_clz(p)
#endif /* !_MODULE */
#define spl0() spllower(0)
typedef int ipl_t;
typedef struct {
ipl_t _ipl;
} ipl_cookie_t;
static __inline ipl_cookie_t
makeiplcookie(ipl_t ipl)
{
return (ipl_cookie_t){._ipl = ipl};
}
static __inline int
splraiseipl(ipl_cookie_t icookie)
{
return splraise(icookie._ipl);
}
#include <sys/spl.h>
#endif /* _LOCORE */
#endif /* _POWERPC_INTR_MACHDEP_H_ */
