FreeBSD/Linux Kernel Cross Reference
sys/i386/include/mpapic.h

     /*
      * Copyright (c) 1996, by Steve Passe
      * 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. The name of the developer 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 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 AUTHOR 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.
     *
     * $FreeBSD$
     */
    
    #ifndef _MACHINE_MPAPIC_H_
    #define _MACHINE_MPAPIC_H_
    
    #include <machine/apic.h>
    
    #include <i386/isa/icu.h>
    
    /*
     * Size of APIC ID list.
     * Also used a MAX size of various other arrays.
     */
    #define NAPICID         16
    
    /* these don't really belong in here... */
    enum busTypes {
        CBUS = 1,
        CBUSII = 2,
        EISA = 3,
        MCA = 4,
        ISA = 6,
        PCI = 13,
        XPRESS = 18,
        MAX_BUSTYPE = 18,
        UNKNOWN_BUSTYPE = 0xff
    };
    
    
    /*
     * the physical/logical APIC ID management macors
     */
    #define CPU_TO_ID(CPU)  (cpu_num_to_apic_id[CPU])
    #define ID_TO_CPU(ID)   (apic_id_to_logical[ID])
    #define IO_TO_ID(IO)    (io_num_to_apic_id[IO])
    #define ID_TO_IO(ID)    (apic_id_to_logical[ID])
    
    
    /*
     * send an IPI INTerrupt containing 'vector' to CPUs in 'targetMap'
     * 'targetMap' is a bitfiled of length 14,
     *   APIC #0 == bit 0, ..., APIC #14 == bit 14
     *   NOTE: these are LOGICAL APIC IDs
     */
    static __inline int
    selected_procs_ipi(int targetMap, int vector)
    {
            return selected_apic_ipi(targetMap, vector, APIC_DELMODE_FIXED);
    }
    
    /*
     * send an IPI INTerrupt containing 'vector' to all CPUs, including myself
     */
    static __inline int
    all_procs_ipi(int vector)
    {
            return apic_ipi(APIC_DEST_ALLISELF, vector, APIC_DELMODE_FIXED);
    }
    
    /*
     * send an IPI INTerrupt containing 'vector' to all CPUs EXCEPT myself
     */
    static __inline int
    all_but_self_ipi(int vector)
    {
            if (mp_ncpus <= 1)
                    return 0;
            return apic_ipi(APIC_DEST_ALLESELF, vector, APIC_DELMODE_FIXED);
    }
    
    /*
     * send an IPI INTerrupt containing 'vector' to myself
     */
    static __inline int
   self_ipi(int vector)
   {
           return apic_ipi(APIC_DEST_SELF, vector, APIC_DELMODE_FIXED);
   }
   
   #endif /* _MACHINE_MPAPIC_H */

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