/*      $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_ */