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      1 /*	$NetBSD: intr.h,v 1.26 2024/01/19 03:09:05 thorpej Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2024 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.
      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 _SUN68K_INTR_H_
     33 #define _SUN68K_INTR_H_
     34 
     35 #ifdef _KERNEL
     36 
     37 #include <m68k/psl.h>
     38 
     39 #define	MACHINE_PSL_IPL_SOFTCLOCK	PSL_IPL1
     40 #define	MACHINE_PSL_IPL_SOFTBIO		PSL_IPL1
     41 #define	MACHINE_PSL_IPL_SOFTNET		PSL_IPL1
     42 #define	MACHINE_PSL_IPL_SOFTSERIAL	PSL_IPL3
     43 #define	MACHINE_PSL_IPL_VM		PSL_IPL4
     44 #define	MACHINE_PSL_IPL_SCHED		PSL_IPL7
     45 
     46 #define	MACHINE_INTREVCNT_NAMES						\
     47 	{ "spur", "lev1", "lev2", "lev3", "lev4", "clock", "lev6", "nmi" }
     48 
     49 /* Zilog Serial hardware interrupts (hard-wired at 6) */
     50 #define splzs()		splserial()	/* aliased to splhigh() */
     51 #define	IPL_ZS		IPL_SERIAL
     52 
     53 #define _IPL_SOFT_LEVEL1	1
     54 #define _IPL_SOFT_LEVEL2	2
     55 #define _IPL_SOFT_LEVEL3	3
     56 #define _IPL_SOFT_LEVEL_MIN	1
     57 #define _IPL_SOFT_LEVEL_MAX	3
     58 
     59 #endif /* _KERNEL */
     60 
     61 #include <m68k/intr.h>
     62 
     63 #ifdef _KERNEL
     64 
     65 /*
     66  * Aliases for the legacy sun68k ISR routines.
     67  */
     68 
     69 typedef int (*isr_func_t)(void *);
     70 
     71 static inline void
     72 isr_add_autovect(isr_func_t func, void *arg, int ipl)
     73 {
     74 	/* XXX leaks interrupt handle. */
     75 	m68k_intr_establish(func, arg, (void *)0, 0, ipl, 0, 0);
     76 }
     77 
     78 static inline void
     79 isr_add_vectored(isr_func_t func, void *arg, int ipl, int vec)
     80 {
     81 	/* XXX leaks interrupt handle. */
     82 	m68k_intr_establish(func, arg, (void *)0, vec, ipl, 0, 0);
     83 }
     84 
     85 /* This returns true iff the spl given is spl0. */
     86 #define	is_spl0(s)	(((s) & PSL_IPL7) == 0)
     87 
     88 #endif /* _KERNEL */
     89 
     90 #endif	/* _SUN68K_INTR_H */
     91