NetBSD/sys/arch/news68k/include/intr.h

98 lines
3.2 KiB
C

/* $NetBSD: intr.h,v 1.9 2003/08/02 13:04:49 tsutsui Exp $ */
/*
*
* Copyright (c) 1998 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by The NetBSD Foundation
* Inc. and its contributers.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 _NEWS68K_INTR_H_
#define _NEWS68K_INTR_H_
#include <machine/psl.h>
#include <m68k/asm_single.h>
#ifdef _KERNEL
/*
* news68k can handle software interrupts by its own hardware
* so has no need to check for any simulated interrupts, etc.
*/
#define spl0() _spl0()
#define spllowersoftclock() spl2()
#define splsoft() splraise2()
#define splsoftclock() splsoft()
#define splsoftnet() splsoft()
#define splbio() splraise4()
#define splnet() splraise4()
#define spltty() splraise5()
#define splvm() splraise5()
#define splserial() splraise5()
#define splclock() splraise6()
#define splstatclock() splclock()
#define splhigh() spl7()
#define splsched() spl7()
#define spllock() spl7()
static __inline void
splx(int sr)
{
__asm __volatile("movw %0,%%sr" : : "di" (sr));
}
/*
* simulated software interrupt register
*/
extern u_char ssir;
extern volatile u_char *ctrl_int2;
#define NSIR (sizeof(ssir) * 8)
#define SIR_NET 0
#define SIR_CLOCK 1
#define NEXT_SIR 2
#define siron(x) single_inst_bset_b((ssir), (x))
#define siroff(x) single_inst_bclr_b((ssir), (x))
#define setsoftint(x) do { \
siron(x); \
*ctrl_int2 = 0xff; \
} while (0)
#define setsoftnet() setsoftint(1 << SIR_NET)
#define setsoftclock() setsoftint(1 << SIR_CLOCK)
u_char allocate_sir(void (*)(void *), void *);
void init_sir(void);
#endif /* _KERNEL */
#endif /* _NEWS68K_INTR_H_ */