sys/platform/pc64/apic/ioapic.h

   1 /*
   2  * Copyright (c) 1996, by Steve Passe
   3  * Copyright (c) 2008 The DragonFly Project.
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. The name of the developer may NOT be used to endorse or promote products
  12  *    derived from this software without specific prior written permission.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  *
  26  * $FreeBSD: src/sys/i386/include/mpapic.h,v 1.14.2.2 2000/09/30 02:49:34 ps Exp $
  27  * $DragonFly: src/sys/platform/pc64/apic/mpapic.h,v 1.1 2008/08/29 17:07:12 dillon Exp $
  28  */
  29
  30 #ifndef _ARCH_APIC_IOAPIC_H_
  31 #define _ARCH_APIC_IOAPIC_H_
  32
  33 #ifndef _SYS_BUS_H_
  34 #include <sys/bus.h>
  35 #endif
  36
  37 #ifndef _SYS_QUEUE_H_
  38 #include <sys/queue.h>
  39 #endif
  40
  41 u_int   ioapic_read(volatile void *, int);
  42 void    ioapic_write(volatile void *, int, u_int);
  43
  44 struct ioapic_enumerator {
  45         int     ioapic_prio;
  46         TAILQ_ENTRY(ioapic_enumerator) ioapic_link;
  47         int     (*ioapic_probe)(struct ioapic_enumerator *);
  48         void    (*ioapic_enumerate)(struct ioapic_enumerator *);
  49 };
  50
  51 #define IOAPIC_ENUM_PRIO_MPTABLE        20
  52 #define IOAPIC_ENUM_PRIO_MADT           40
  53
  54 void    ioapic_enumerator_register(struct ioapic_enumerator *);
  55 void    ioapic_add(void *, int, int);
  56 void    ioapic_intsrc(int, int, enum intr_trigger, enum intr_polarity);
  57 void    *ioapic_gsi_ioaddr(int);
  58 int     ioapic_gsi_pin(int);
  59 void    ioapic_pin_setup(void *, int, int,
  60             enum intr_trigger, enum intr_polarity, int);
  61 void    ioapic_extpin_setup(void *, int, int);
  62 int     ioapic_extpin_gsi(void);
  63 int     ioapic_gsi(int, int);
  64 void    *ioapic_map(vm_paddr_t);
  65
  66 extern int      ioapic_enable;
  67
  68 #endif  /* !_ARCH_APIC_IOAPIC_H_ */