Home | History | Annotate | Line # | Download | only in include
intr.h revision 1.22 
      1 /*	$NetBSD: intr.h,v 1.22 2023/07/11 11:07:54 riastradh 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 <machine/psl.h>
     36 
     37 #define	IPL_NONE	0	/* disable only this interrupt */
     38 #define	IPL_SOFTCLOCK	1	/* clock software interrupts */
     39 #define	IPL_SOFTBIO	2	/* block software interrupts */
     40 #define	IPL_SOFTNET	3	/* network software interrupts */
     41 #define	IPL_SOFTSERIAL	4	/* serial software interrupts */
     42 #define	IPL_VM		5
     43 #define	IPL_SCHED	6
     44 #define	IPL_HIGH	7
     45 #define	NIPL		8
     46 
     47 #if defined(_KERNEL) || defined(_KMEMUSER)
     48 typedef struct {
     49 	uint16_t _psl;
     50 } ipl_cookie_t;
     51 #endif
     52 
     53 #ifdef _KERNEL
     54 #define spl0()			_spl0()
     55 #define splsoftclock()		splraise1()
     56 #define splsoftbio()		splraise1()
     57 #define splsoftnet()		splraise1()
     58 #define splsoftserial()		splraise1()
     59 #define splvm()			splraise3()
     60 #define splsched()		spl7()
     61 #define splhigh()		spl7()
     62 
     63 #ifndef _LOCORE
     64 
     65 extern const uint16_t ipl2psl_table[NIPL];
     66 
     67 typedef int ipl_t;
     68 
     69 static __inline ipl_cookie_t
     70 makeiplcookie(ipl_t ipl)
     71 {
     72 
     73 	return (ipl_cookie_t){._psl = ipl2psl_table[ipl]};
     74 }
     75 
     76 static __inline int
     77 splraiseipl(ipl_cookie_t icookie)
     78 {
     79 
     80 	return _splraise(icookie._psl);
     81 }
     82 
     83 static __inline void
     84 splx(int sr)
     85 {
     86 
     87 	__asm volatile("movw %0,%%sr" : : "di" (sr));
     88 }
     89 
     90 #endif /* !_LOCORE */
     91 #endif /* _KERNEL */
     92 
     93 #endif /* _MVME68K_INTR_H */
     94