145 lines
3.9 KiB
C
145 lines
3.9 KiB
C
/* $NetBSD: intr.h,v 1.12 2016/10/19 00:08:42 nonaka Exp $ */
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/*-
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* Copyright (c) 2007 Michael Lorenz
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* All rights reserved.
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _LOCORE
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: intr.h,v 1.12 2016/10/19 00:08:42 nonaka Exp $");
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#endif
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#ifndef _POWERPC_INTR_MACHDEP_H_
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#define _POWERPC_INTR_MACHDEP_H_
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#define __HAVE_FAST_SOFTINTS 1
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/* Interrupt priority `levels'. */
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#define IPL_NONE 0 /* nothing */
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#define IPL_SOFTCLOCK 1 /* timeouts */
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#define IPL_SOFTBIO 2 /* block I/O */
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#define IPL_SOFTNET 3 /* protocol stacks */
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#define IPL_SOFTSERIAL 4 /* serial */
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#define IPL_VM 5 /* memory allocation */
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#define IPL_SCHED 6
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#define IPL_HIGH 7 /* everything */
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#define NIPL 8
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/* Interrupt sharing types. */
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#define IST_NONE 0 /* none */
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#define IST_PULSE 1 /* pulsed */
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#define IST_EDGE 2 /* falling edge triggered */
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#define IST_LEVEL 3 /* low level triggered */
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#define IST_EDGE_FALLING IST_EDGE
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#define IST_EDGE_RISING 4 /* rising edge triggered */
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#define IST_LEVEL_LOW IST_LEVEL
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#define IST_LEVEL_HIGH 5 /* high level triggered */
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#if !defined(_LOCORE)
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void * intr_establish(int, int, int, int (*)(void *), void *);
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void * intr_establish_xname(int, int, int, int (*)(void *), void *,
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const char *);
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void intr_disestablish(void *);
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const char *
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intr_typename(int);
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int splraise(int);
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int spllower(int);
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void splx(int);
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#if !defined(_MODULE)
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#include <powerpc/softint.h>
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void genppc_cpu_configure(void);
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/*
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* Interrupt handler chains. intr_establish() inserts a handler into
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* the list. The handler is called with its (single) argument.
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*/
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struct intrhand {
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int (*ih_fun)(void *);
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void *ih_arg;
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struct intrhand *ih_next;
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int ih_ipl;
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int ih_virq;
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char ih_xname[INTRDEVNAMEBUF];
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};
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void softint_fast_dispatch(struct lwp *, int);
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#define softint_init_md powerpc_softint_init_md
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#define softint_trigger powerpc_softint_trigger
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#ifdef __IMASK_T
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typedef __IMASK_T imask_t;
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#else
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typedef uint32_t imask_t;
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#endif
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extern imask_t imask[];
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#define NVIRQ (sizeof(imask_t)*8) /* 32 virtual IRQs */
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#ifndef NIRQ
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#define NIRQ 128 /* up to 128 HW IRQs */
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#endif
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#define HWIRQ_MAX (NVIRQ - 1)
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#define HWIRQ_MASK (~(imask_t)0 >> 1)
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#define PIC_VIRQ_TO_MASK(v) __BIT(HWIRQ_MAX - (v))
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#define PIC_VIRQ_MS_PENDING(p) __builtin_clz(p)
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#endif /* !_MODULE */
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#define spl0() spllower(0)
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typedef int ipl_t;
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typedef struct {
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ipl_t _ipl;
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} ipl_cookie_t;
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static inline ipl_cookie_t
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makeiplcookie(ipl_t ipl)
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{
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return (ipl_cookie_t){._ipl = ipl};
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}
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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._ipl);
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}
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#include <sys/spl.h>
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#endif /* _LOCORE */
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#endif /* _POWERPC_INTR_MACHDEP_H_ */
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