2 * Copyright (c) 1997 Bruce Evans.
3 * Copyright (c) 2008 The DragonFly Project.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * $FreeBSD: src/sys/i386/isa/icu_ipl.h,v 1.3 1999/08/28 00:44:42 peter Exp $
28 * $DragonFly: src/sys/platform/pc64/icu/icu_ipl.h,v 1.1 2008/08/29 17:07:16 dillon Exp $
31 #ifndef _ARCH_ICU_ICU_IPL_H_
32 #define _ARCH_ICU_ICU_IPL_H_
34 #include <machine_base/isa/isa_intr.h>
36 #define ICU_HWI_VECTORS ISA_IRQ_CNT
37 #define ICU_HWI_MASK ((1 << ICU_HWI_VECTORS) - 1)
42 * SMP interrupt mask protection. The first version is used
43 * when interrupts might not be disabled, the second version is
44 * used when interrupts are disabled.
47 #define ICU_IMASK_LOCK \
48 SPIN_LOCK(imen_spinlock) ; \
50 #define ICU_IMASK_UNLOCK \
51 SPIN_UNLOCK(imen_spinlock) ; \
55 #endif /* !_ARCH_ICU_ICU_IPL_H_ */