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      1 /*	$NetBSD: intr.h,v 1.15 2021/11/02 11:26:04 ryo Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2002 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #ifndef _EVBSH3_INTR_H_
     30 #define _EVBSH3_INTR_H_
     31 
     32 #include <sh3/intr.h>
     33 
     34 /* Number of interrupt source */
     35 #define _INTR_N		16	/* TMU0, TMU1, TMU2, (SCIF and SCI) * 4 */
     36 
     37 /* Interrupt priority levels */
     38 #define	IPL_VM		12
     39 #define	IPL_SCHED	14	/* clock */
     40 #define	IPL_HIGH	15	/* everything */
     41 
     42 typedef uint8_t ipl_t;
     43 typedef struct {
     44 	ipl_t _ipl;
     45 } ipl_cookie_t;
     46 
     47 static inline __always_inline ipl_cookie_t
     48 makeiplcookie(ipl_t ipl)
     49 {
     50 
     51 	return (ipl_cookie_t){._ipl = ipl << 4};
     52 }
     53 
     54 static inline __always_inline int
     55 splraiseipl(ipl_cookie_t icookie)
     56 {
     57 
     58 	return _cpu_intr_raise(icookie._ipl);
     59 }
     60 
     61 #include <sys/spl.h>
     62 
     63 #define	spl0()			_cpu_intr_resume(0)
     64 #define	splx(x)			_cpu_intr_resume(x)
     65 
     66 #endif /* !_EVBSH3_INTR_H_ */
     67