/*      $NetBSD: intr.h,v 1.3 2018/04/19 21:50:06 christos Exp $        */

/*-
* Copyright (c) 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe and Steve C. Woodford.
*
* 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 _EVBCF_INTR_H
#define _EVBCF_INTR_H

#include <machine/psl.h>

#define IPL_NONE        0       /* disable only this interrupt */
#define IPL_SOFTCLOCK   1       /* clock software interrupts */
#define IPL_SOFTBIO     2       /* block software interrupts */
#define IPL_SOFTNET     3       /* network software interrupts */
#define IPL_SOFTSERIAL  4       /* serial software interrupts */
#define IPL_VM          5
#define IPL_SCHED       6
#define IPL_HIGH        7
#define NIPL            8

#ifdef _KERNEL
#define spl0()                  _spl0()
#define splsoftclock()          splraise1()
#define splsoftbio()            splraise1()
#define splsoftnet()            splraise1()
#define splsoftserial()         splraise1()
#define splvm()                 splraise3()
#define splsched()              spl7()
#define splhigh()               spl7()

#ifndef _LOCORE

extern const uint16_t ipl2psl_table[NIPL];

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

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("movw %0,%%sr" : : "di" (sr));
}

#endif /* !_LOCORE */
#endif /* _KERNEL */

#endif /* _EVBCF_INTR_H */