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intr.h revision 1.17 
      1 /*	$NetBSD: intr.h,v 1.17 2007/12/03 15:33:59 ad Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2000 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Jason R. Thorpe and Steve C. Woodford.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #ifndef _MVME68K_INTR_H
     40 #define _MVME68K_INTR_H
     41 
     42 #include <sys/device.h>
     43 #include <machine/psl.h>
     44 
     45 #define	IPL_NONE	0	/* disable only this interrupt */
     46 #define	IPL_SOFTCLOCK	2	/* clock software interrupts */
     47 #define	IPL_SOFTBIO	1	/* block software interrupts */
     48 #define	IPL_SOFTNET	3	/* network software interrupts */
     49 #define	IPL_SOFTSERIAL	4	/* serial software interrupts */
     50 #define	IPL_VM		5
     51 #define	IPL_SCHED	6
     52 #define	IPL_HIGH	6
     53 
     54 #ifdef _KERNEL
     55 #define spl0()			_spl0()
     56 #define splsoftclock()		splraise1()
     57 #define splsoftbio()		splraise1()
     58 #define splsoftnet()		splraise1()
     59 #define splsoftserial()		splraise1()
     60 #define splvm()			splraise3()
     61 #define splsched()		spl7()
     62 #define splhigh()		spl7()
     63 
     64 #ifndef _LOCORE
     65 
     66 typedef int ipl_t;
     67 typedef struct {
     68 	uint16_t _psl;
     69 } ipl_cookie_t;
     70 
     71 ipl_cookie_t makeiplcookie(ipl_t);
     72 
     73 static inline int
     74 splraiseipl(ipl_cookie_t icookie)
     75 {
     76 
     77 	return _splraise(icookie._psl);
     78 }
     79 
     80 static __inline void
     81 splx(int sr)
     82 {
     83 
     84 	__asm volatile("movw %0,%%sr" : : "di" (sr));
     85 }
     86 
     87 #endif /* !_LOCORE */
     88 #endif /* _KERNEL */
     89 
     90 #endif /* _MVME68K_INTR_H */
     91