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146 lines
3.3 KiB
C
146 lines
3.3 KiB
C
/* $NetBSD: intr.h,v 1.1 2014/09/03 19:34:26 matt Exp $ */
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/*-
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* Copyright (c) 2014 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Matt Thomas of 3am Software Foundry.
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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 _OR1K_INTR_H_
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#define _OR1K_INTR_H_
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#ifdef _LOCORE
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#error use "assym.h"
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#endif
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#ifdef _KERNEL
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#ifdef _KERNEL_OPT
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#include "opt_multiprocessor.h"
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#endif
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#ifdef MULTIPROCESSOR
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#define __HAVE_PREEMPTION 1
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#endif
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/* Interrupt priority "levels". */
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#define IPL_NONE 0 /* nothing */
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#define IPL_SOFTCLOCK 1 /* clock */
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#define IPL_SOFTBIO 2 /* block I/O */
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#define IPL_SOFTNET 3 /* software network interrupt */
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#define IPL_SOFTSERIAL 4 /* software serial interrupt */
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#define IPL_VM 5 /* memory allocation */
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#define IPL_SCHED 6 /* clock interrupt */
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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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#define IST_LEVEL_LOW IST_LEVEL
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#define IST_LEVEL_HIGH 4
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#define IST_EDGE_FALLING IST_EDGE
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#define IST_EDGE_RISING 5
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#define IST_EDGE_BOTH 6
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#define IST_SOFT 7
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#include <or1k/pic/picvar.h>
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static inline void
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spl0(void)
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{
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(void)_spllower(IPL_NONE);
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}
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static inline int
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splsoftclock(void)
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{
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return _splraise(IPL_SOFTCLOCK);
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}
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static inline int
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splsoftbio(void)
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{
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return _splraise(IPL_SOFTBIO);
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}
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static inline int
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splsoftnet(void)
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{
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return _splraise(IPL_SOFTNET);
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}
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static inline int
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splsoftserial(void)
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{
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return _splraise(IPL_SOFTSERIAL);
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}
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static inline int
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splvm(void)
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{
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return _splraise(IPL_VM);
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}
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static inline int
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splsched(void)
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{
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return _splraise(IPL_SCHED);
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}
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static inline int
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splhigh(void)
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{
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return _splraise(IPL_HIGH);
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}
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typedef uint8_t 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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#endif /* _KERNEL */
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#endif /* _OR1K_INTR_H_ */
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