xref: /src/sys/arch/cesfic/include/intr.h

/*	$NetBSD: intr.h,v 1.14 2023/07/11 10:47:24 riastradh Exp $	*/

/*
 * Copyright (c) 1988 University of Utah.
 * Copyright (c) 1982, 1986, 1990, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * the Systems Programming Group of the University of Utah Computer
 * Science Department.
 *
 * 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.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
 *
 * from: Utah $Hdr: machparam.h 1.16 92/12/20$
 *
 *	from: @(#)param.h	8.1 (Berkeley) 6/10/93
 */

#ifndef _CESFIC_INTR_H_
#define _CESFIC_INTR_H_

/*
 * spl functions; all but spl0 are done in-line
 */
#include <machine/psl.h>

#ifndef _LOCORE

typedef struct {
	uint16_t _psl;
} ipl_cookie_t;

#endif

#if defined(_KERNEL) && !defined(_LOCORE)
/* spl0 requires checking for software interrupts */
#define spl1()  _spl(PSL_S|PSL_IPL1)
#define spl2()  _spl(PSL_S|PSL_IPL2)
#define spl3()  _spl(PSL_S|PSL_IPL3)
#define spl4()  _spl(PSL_S|PSL_IPL4)
#define spl5()  _spl(PSL_S|PSL_IPL5)
#define spl6()  _spl(PSL_S|PSL_IPL6)
#define spl7()  _spl(PSL_S|PSL_IPL7)

/* These spl calls are used by machine-independent code. */
#define splsoftclock()	splraise1()
#define splsoftbio()	splraise1()
#define splsoftnet()	splraise1()
#define splsoftserial()	splraise1()
#define splvm()		splraise4()
#define splsched()	spl6()
#define splhigh()	spl7()

/* watch out for side effects */
#define splx(s)         (s & PSL_IPL ? _spl(s) : spl0())

int	spl0(void);

#define	IPL_NONE	0
#define	IPL_SOFTCLOCK	1
#define	IPL_SOFTBIO	1
#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;

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);
}

#endif /* _KERNEL && !_LOCORE */

#endif /* !_CESFIC_INTR_H_ */