/*      $NetBSD: intr.h,v 1.23 2024/01/07 07:58:33 isaki Exp $  */

/*-
 * Copyright (c) 1998 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Minoura Makoto and Jason R. Thorpe.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _X68K_INTR_H_
#define _X68K_INTR_H_

#include <machine/psl.h>

#define spl0()          _spl0()

#define splsoftbio()    splraise1()
#define splsoftclock()  splraise1()
#define splsoftnet()    splraise1()
#define splsoftserial() splraise1()
#define splvm()         splraise5()
#define splsched()      spl7()
#define splhigh()       spl7()

#define splnone()       spl0()
#define splzs()         splraise5()     /* disallow serial interrupts */

#define IPL_NONE        0
#define IPL_SOFTCLOCK   1
#define IPL_SOFTBIO     2
#define IPL_SOFTNET     3
#define IPL_SOFTSERIAL  4
#define IPL_VM          5
#define IPL_SCHED       6
#define IPL_HIGH        7
#define NIPL            8

extern const uint16_t ipl2psl_table[NIPL];

typedef int ipl_t;
typedef struct {
        uint16_t _psl;
} ipl_cookie_t;

#ifdef _KERNEL

static inline ipl_cookie_t
makeiplcookie(ipl_t ipl)
{

        return (ipl_cookie_t){._psl = ipl2psl_table[ipl]};
}

static inline int
splraiseipl(ipl_cookie_t icookie)
{

        return _splraise(icookie._psl);
}

static inline void
splx(int sr)
{

        __asm volatile("movew %0,%%sr" : : "di" (sr));
}

#endif  /* _KERNEL */

#endif /* !_X68K_INTR_H_ */