/* $NetBSD: intr.h,v 1.9 2012/03/03 21:15:16 reinoud Exp $ */

/*-
* Copyright (c) 2007 Jared D. McNeill <[email protected]>
* All rights reserved.
*
* 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 _ARCH_USERMODE_INCLUDE_INTR_H
#define _ARCH_USERMODE_INCLUDE_INTR_H

#include <machine/intrdefs.h>
#include <sys/siginfo.h>

/* spl */
void    splinit(void);
int     splraise(int);
void    spllower(int);

#define spl0()          spllower(IPL_NONE)
#define splx(x)         spllower(x)

/* traps */
typedef void (sigfunc_t)(siginfo_t *info, vaddr_t from_userland, vaddr_t pc, vaddr_t va);
extern void setup_signal_handlers(void);
extern void  signal_intr_establish(int sig, sigfunc_t f);
extern void *sigio_intr_establish(int (*)(void *), void *);

/* spl implementation */
typedef uint8_t ipl_t;
typedef struct {
       ipl_t _ipl;
} ipl_cookie_t;

static inline ipl_cookie_t
makeiplcookie(ipl_t ipl)
{
       return (ipl_cookie_t){._ipl = ipl};
}

static inline int
splraiseipl(ipl_cookie_t icookie)
{
       return splraise(icookie._ipl);
}

#include <sys/spl.h>

/* for trap.c */

#endif /* !_ARCH_USERMODE_INCLUDE_INTR_H */