sys/platform/pc32/apic/apic_ipl.h

   1 /*-
   2  * Copyright (c) 1997, by Steve Passe
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. The name of the developer may NOT be used to endorse or promote products
  11  *    derived from this software without specific prior written permission.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  14  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  16  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  17  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  18  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  19  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  20  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  21  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  22  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  23  * SUCH DAMAGE.
  24  *
  25  * $FreeBSD: src/sys/i386/isa/apic_ipl.h,v 1.3 1999/08/28 00:44:36 peter Exp $
  26  * $DragonFly: src/sys/platform/pc32/apic/apic_ipl.h,v 1.8 2006/10/23 21:50:29 dillon Exp $
  27  */
  28
  29 #ifndef _ARCH_APIC_IPL_H_
  30 #define _ARCH_APIC_IPL_H_
  31
  32 #ifdef APIC_IO
  33
  34 /* IDT vector base for regular (aka. slow) and fast interrupts */
  35 #define TPR_SLOW_INTS   0x20
  36 #define TPR_FAST_INTS   0x60
  37
  38 #define APIC_HWI_VECTORS 24
  39 #define APIC_HWI_MASK   ((1 << APIC_HWI_VECTORS) - 1)
  40
  41 #endif
  42
  43 #ifdef LOCORE
  44
  45 /*
  46  * Interrupts may or may not be disabled when using these functions.
  47  */
  48 #define APIC_IMASK_LOCK                                                 \
  49         SPIN_LOCK(imen_spinlock) ;                                      \
  50
  51 #define APIC_IMASK_UNLOCK                                               \
  52         SPIN_UNLOCK(imen_spinlock) ;                                    \
  53
  54 #endif
  55
  56 #endif /* !_ARCH_APIC_IPL_H_ */