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 32INTERFACE msi; 33 34HEADER { 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# 44CODE { 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 57METHOD 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 66METHOD int release_msi { 67 device_t dev; 68 device_t child; 69 int count; 70 struct intr_irqsrc **srcs; 71}; 72 73METHOD int alloc_msix { 74 device_t dev; 75 device_t child; 76 device_t *pic; 77 struct intr_irqsrc **src; 78}; 79 80METHOD int release_msix { 81 device_t dev; 82 device_t child; 83 struct intr_irqsrc *src; 84}; 85 86METHOD 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 94METHOD int iommu_init { 95 device_t dev; 96 device_t child; 97 struct iommu_domain **domain; 98} DEFAULT iommu_init; 99 100METHOD void iommu_deinit { 101 device_t dev; 102 device_t child; 103} DEFAULT iommu_deinit; 104