124 lines
3.5 KiB
C
124 lines
3.5 KiB
C
/* $NetBSD: intr.h,v 1.5 2010/04/25 12:26:07 kiyohara 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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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: intr.h,v 1.5 2010/04/25 12:26:07 kiyohara Exp $");
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#ifndef POWERPC_INTR_MACHDEP_H
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#define POWERPC_INTR_MACHDEP_H
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void *intr_establish(int, int, int, int (*)(void *), void *);
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void intr_disestablish(void *);
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const char *intr_typename(int);
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void genppc_cpu_configure(void);
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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 /* edge-triggered */
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#define IST_LEVEL 3 /* level-triggered */
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#ifndef _LOCORE
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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_level;
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int ih_irq;
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};
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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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void softintr(int);
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typedef u_int imask_t;
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extern imask_t imask[];
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#define NVIRQ 32 /* 32 virtual IRQs */
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#define NIRQ 128 /* up to 128 HW IRQs */
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#define HWIRQ_MAX (NVIRQ - 5 - 1)
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#define HWIRQ_MASK 0x07ffffff
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#define MS_PENDING(p) (31 - cntlzw(p))
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/* Soft interrupt masks. */
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#define SIR_CLOCK 27
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#define SIR_BIO 28
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#define SIR_NET 29
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#define SIR_SERIAL 30
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#define SPL_CLOCK 31
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#define setsoftclock() softintr(SIR_CLOCK)
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#define setsoftbio() softintr(SIR_BIO)
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#define setsoftnet() softintr(SIR_NET)
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#define setsoftserial() softintr(SIR_SERIAL)
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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(imask[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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