FreeBSD/Linux Kernel Cross Reference
sys/sys/machintr.h

     /*
      * Copyright (c) 2005 The DragonFly Project.  All rights reserved.
      * 
      * This code is derived from software contributed to The DragonFly Project
      * by Matthew Dillon <dillon@backplane.com>
      * 
      * 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. Neither the name of The DragonFly Project nor the names of its
     *    contributors may be used to endorse or promote products derived
     *    from this software without specific, prior written permission.
     * 
     * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
     * COPYRIGHT HOLDERS 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.
     * 
     * $DragonFly: src/sys/sys/machintr.h,v 1.7 2007/04/30 16:46:01 dillon Exp $
     */
    /*
     * This module defines the ABI for the machine-independant cpu interrupt
     * vector and masking layer.
     */
    
    #ifndef _SYS_MACHINTR_H_
    #define _SYS_MACHINTR_H_
    
    #ifdef _KERNEL
    
    #ifndef _SYS_BUS_H_
    #include <sys/bus.h>
    #endif
    
    struct rman;
    
    enum machintr_type { MACHINTR_GENERIC, MACHINTR_ICU, MACHINTR_IOAPIC };
    
    #define MACHINTR_VECTOR_SETUP           1
    #define MACHINTR_VECTOR_TEARDOWN        2
    
    /*
     * Machine interrupt ABIs - registered at boot-time
     */
    struct machintr_abi {
        enum machintr_type type;
    
        void        (*intr_disable)(int intr);      /* hardware disable intr */
        void        (*intr_enable)(int intr);       /* hardware enable intr */
        void        (*intr_setup)(int intr, int flags);
                                                    /* setup intr */
        void        (*intr_teardown)(int intr);     /* tear down intr */
    
        void        (*legacy_intr_config)           /* config legacy intr */
                    (int intr, enum intr_trigger trig, enum intr_polarity pola);
        int         (*legacy_intr_cpuid)(int intr); /* legacy intr target cpu */
        int         (*legacy_intr_find)             /* find legacy intr */
                    (int intr, enum intr_trigger trig, enum intr_polarity pola);
        int         (*legacy_intr_find_bygsi)       /* find legacy intr by GSI */
                    (int gsi, enum intr_trigger trig, enum intr_polarity pola);
    
        int         (*msi_alloc)                    /* alloc count MSIs on cpu */
                    (int intrs[], int count, int cpuid);
        void        (*msi_release)                  /* release count MSIs on cpu */
                    (const int intrs[], int count, int cpuid);
        void        (*msi_map)                      /* addr/data for MSI on cpu */
                    (int intr, uint64_t *addr, uint32_t *data, int cpuid);
        int         (*msix_alloc)                   /* alloc one MSI-X on cpu */
                    (int *intr, int cpuid);
        void        (*msix_release)                 /* release one MSI-X on cpu */
                    (int intr, int cpuid);
    
        void        (*finalize)(void);              /* final before ints enabled */
        void        (*cleanup)(void);               /* cleanup */
        void        (*setdefault)(void);            /* set default vectors */
        void        (*stabilize)(void);             /* stable before ints enabled */
        void        (*initmap)(void);               /* init irq mapping */
        void        (*rman_setup)(struct rman *rm); /* setup rman */
    };
    
    #define machintr_intr_enable(intr)      MachIntrABI.intr_enable(intr)
    #define machintr_intr_disable(intr)     MachIntrABI.intr_disable(intr)
    #define machintr_intr_setup(intr, flags) \
                MachIntrABI.intr_setup((intr), (flags))
   #define machintr_intr_teardown(intr) \
               MachIntrABI.intr_teardown((intr))
   
   #define machintr_legacy_intr_config(intr, trig, pola) \
               MachIntrABI.legacy_intr_config((intr), (trig), (pola))
   #define machintr_legacy_intr_cpuid(intr) \
               MachIntrABI.legacy_intr_cpuid((intr))
   
   #define machintr_legacy_intr_find(intr, trig, pola) \
               MachIntrABI.legacy_intr_find((intr), (trig), (pola))
   #define machintr_legacy_intr_find_bygsi(gsi, trig, pola) \
               MachIntrABI.legacy_intr_find_bygsi((gsi), (trig), (pola))
   
   extern struct machintr_abi MachIntrABI;
   
   #endif  /* _KERNEL */
   
   #endif  /* _SYS_MACHINTR_H_ */

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