msi_if.m

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    1 #-
    2 # Copyright (c) 2016 The FreeBSD Foundation
    3 # All rights reserved.
    4 #
    5 # This software was developed by Andrew Turner under
    6 # sponsorship from the FreeBSD Foundation.
    7 #
    8 # Redistribution and use in source and binary forms, with or without
    9 # modification, are permitted provided that the following conditions
   10 # are met:
   11 # 1. Redistributions of source code must retain the above copyright
   12 #    notice, this list of conditions and the following disclaimer.
   13 # 2. Redistributions in binary form must reproduce the above copyright
   14 #    notice, this list of conditions and the following disclaimer in the
   15 #    documentation and/or other materials provided with the distribution.
   16 #
   17 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   18 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   19 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   20 # ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   21 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   22 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   23 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   24 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   25 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   26 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   27 # SUCH DAMAGE.
   28 #
   29 # $FreeBSD$
   30 #
   31 
   32 INTERFACE msi;
   33 
   34 HEADER {
   35         #include <machine/bus.h>
   36         #include <dev/iommu/iommu_msi.h>
   37 
   38         struct intr_irqsrc;
   39 };
   40 
   41 #
   42 # Default implementations of some methods.
   43 #
   44 CODE {
   45         static int
   46         iommu_init(device_t dev, device_t child, struct iommu_domain **domain)
   47         {
   48                 *domain = NULL;
   49                 return (0);
   50         }
   51         static void
   52         iommu_deinit(device_t dev, device_t child)
   53         {
   54         }
   55 };
   56 
   57 METHOD int alloc_msi {
   58         device_t        dev;
   59         device_t        child;
   60         int             count;
   61         int             maxcount;
   62         device_t        *pic;
   63         struct intr_irqsrc **srcs;
   64 };
   65 
   66 METHOD int release_msi {
   67         device_t        dev;
   68         device_t        child;
   69         int             count;
   70         struct intr_irqsrc **srcs;
   71 };
   72 
   73 METHOD int alloc_msix {
   74         device_t        dev;
   75         device_t        child;
   76         device_t        *pic;
   77         struct intr_irqsrc **src;
   78 };
   79 
   80 METHOD int release_msix {
   81         device_t        dev;
   82         device_t        child;
   83         struct intr_irqsrc *src;
   84 };
   85 
   86 METHOD int map_msi {
   87         device_t        dev;
   88         device_t        child;
   89         struct intr_irqsrc *src;
   90         uint64_t        *addr;
   91         uint32_t        *data;
   92 };
   93 
   94 METHOD int iommu_init {
   95         device_t        dev;
   96         device_t        child;
   97         struct iommu_domain **domain;
   98 } DEFAULT iommu_init;
   99 
  100 METHOD void iommu_deinit {
  101         device_t        dev;
  102         device_t        child;
  103 } DEFAULT iommu_deinit;

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FreeBSD/Linux Kernel Cross Reference sys/kern/msi_if.m

FreeBSD/Linux Kernel Cross Reference
sys/kern/msi_if.m