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intr.h revision 1.17.18.1 
      1 /*	$NetBSD: intr.h,v 1.17.18.1 2008/05/16 02:22:53 yamt 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  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #ifndef _MVME68K_INTR_H
     33 #define _MVME68K_INTR_H
     34 
     35 #include <sys/device.h>
     36 #include <machine/psl.h>
     37 
     38 #define	IPL_NONE	0	/* disable only this interrupt */
     39 #define	IPL_SOFTCLOCK	2	/* clock software interrupts */
     40 #define	IPL_SOFTBIO	1	/* block software interrupts */
     41 #define	IPL_SOFTNET	3	/* network software interrupts */
     42 #define	IPL_SOFTSERIAL	4	/* serial software interrupts */
     43 #define	IPL_VM		5
     44 #define	IPL_SCHED	6
     45 #define	IPL_HIGH	6
     46 
     47 #ifdef _KERNEL
     48 #define spl0()			_spl0()
     49 #define splsoftclock()		splraise1()
     50 #define splsoftbio()		splraise1()
     51 #define splsoftnet()		splraise1()
     52 #define splsoftserial()		splraise1()
     53 #define splvm()			splraise3()
     54 #define splsched()		spl7()
     55 #define splhigh()		spl7()
     56 
     57 #ifndef _LOCORE
     58 
     59 typedef int ipl_t;
     60 typedef struct {
     61 	uint16_t _psl;
     62 } ipl_cookie_t;
     63 
     64 ipl_cookie_t makeiplcookie(ipl_t);
     65 
     66 static inline int
     67 splraiseipl(ipl_cookie_t icookie)
     68 {
     69 
     70 	return _splraise(icookie._psl);
     71 }
     72 
     73 static __inline void
     74 splx(int sr)
     75 {
     76 
     77 	__asm volatile("movw %0,%%sr" : : "di" (sr));
     78 }
     79 
     80 #endif /* !_LOCORE */
     81 #endif /* _KERNEL */
     82 
     83 #endif /* _MVME68K_INTR_H */
     84